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August 2001

Descriptions and Weather outlooks:
Descriptions and outlooks taken from the National Fire News and Incident Management Situtation Reports .

Viewing Properties:

Simulated Natural Color Images (Bands 1, 2 and 3):
Enhanced image of the Western United States. NOAA 12, 5:31 pm.

Afternoon  Images:

Simulated Natural Color Images (Bands 1, 2 and 3):
Enhanced image of the Western United States. NOAA 16, 3:03 pm.

Morning Images:

Simulated Natural Color Images (Bands 1, 2 and 3):
Enhanced image of the Western United States. NOAA 15, 9:26 a.m.
Simulated Natural Color Images (Bands 1, 2 and 3):
Enhanced image of the Western United States. NOAA 14, 7:31 a.m.
Infrared  Images (Band 3)
Enhanced image of Western Unites States. NOAA 16,  3:32a.m.
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Tyros Satellite Data
  August 30, 2001 (Thursday)
National Preparedness Level 5
Four new large fires were reported, two in Eastern Great Basin and one each in the Northern Rockies and Southwest Areas. Three large fires met containment objectives, one each in Eastern Great Basin, Northern California and Southern California Areas. Initial attack activity was moderate in Rocky Mountain and Western Great Basin areas and light elsewhere. Very high to extreme fire danger was reported in Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.
High pressure is centered over the Northern Rockies, bringing sunny skies. Temperatures will be in the 80s to 90s. High pressure in the Pacific Northwest area will slide east Thursday as a weak frontal system approaches the coast. The front will arrive by late afternoon or early evening. A slightly unstable air mass over south central Oregon may result in a slight risk of late afternoon thunderstorms in central and southeast Oregon, otherwise mostly sunny conditions will dominate the region. Highs will be 65 to 70 along the coast, with 70s to 80s in the western valleys except near 90 in southwest Oregon. Highs east of the Cascades will be in the 80s to 90s.  A weak trough will bring a little cooler temperatures to the Western Great Basin area. Some mid level moisture will remain over the area bringing a slight chance of  thunderstorms, otherwise expect partly cloudy conditions. Temperatures will be mid 80s to mid 90s in the north and central portion of the region and 95 to 110 in southern portions. A ridge of high pressure continues to sit over the Eastern Great Basin area. A series of upper level disturbances moving through the ridge of high pressure, will continue to bring a slight chance of thunderstorms over Utah, while mostly sunny skies continue over southern Idaho. Temperatures will be 75 to 85 in the mountain regions with mid 80s to 90s in the valley bottoms.  High pressure dominates the area over northern California. Expect sunny conditions except for coastal fog and low clouds. Temperatures will range from the 60s to low 70s along the coast, and lower 80s to upper 90s inland. A Pacific cold front is expected to continue its southward movement across eastern Colorado, continuing the chance for widely scattered, mainly dry thunderstorms along the Colorado Front Range and southeast Wyoming. Expect mostly sunny conditions in eastern Wyoming and South Dakota. Temperatures will be mid 50 to 60s over the mountains and upper 70s in the valley bottoms.  In southern California, high pressure will dominate the area. Weather conditions will be mostly sunny except for coastal fog and low clouds. Temperatures will be in the 70s to 80s near the coast and 90's to 105 inland, with higher readings in desert areas.

*** A FIRE WEATHER WATCH HAS BEEN POSTED IN WESTERN PORTIONS OF SOUTHERN MONTANA FORE LOW HUMIDITY, GUSTY WINDS AND DRY THUNDERSTORMS **

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Tyros Satellite Data
  August 24, 2001 (Friday)
National Preparedness Level 5
Three new large fires were reported, one each in the Northern Rockies, Rocky Mountain and Eastern Great Basin Areas. Five large fires were contained, two in the Northwest, and one each in SouthernCalifornia, Rocky Mountain and Western Great Basin Areas. Initial attack activity was light across the nation. Very high to extreme fire indices were reported in Arizona, California, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.

High pressure building into the Pacific Northwest will bring mostly sunny conditions, with partly cloudy skies in northwest Washington. High temperatures will be in the 70's in northeast Washington, and in the mid 70's to low 80's elsewhere east of the Cascades. Minimum relative humidity will range from 20 to 30 percent east of the Cascades. Winds will be southwest to northwest at 10 to 15 mph over the higher terrain of the Cascades and mountains of northern Oregon and Washington. High pressure will continue to develop over the Northern Rockies bringing mostly sunny conditions. High temperatures will be 70 to 80, except in the upper 80's east of the Rockies.  Building high pressure over southern California will bring mostly sunny conditions. High temperatures will be in the 80's and 90's inland, and 105 to 112 in the lower elevation deserts.  A ridge of high pressure will strengthen over eastern Great Basin bringing partly to mostly sunny skies. High temperature in Utah will be 75 to 85 in the mountains, and 90's at lower elevations. Idaho high temperatures will be in the 70's in the mountains, and mid 70's to mid 80's at lower elevations.

Ten new large fires were reported, three in Southern California, two in Rocky Mountain and one each in Northern California, Northern Rockies, Western Great Basin, Eastern Great Basin and Southern Area. Five large fires met containment objectives, two in the Northwest, and one each in Rocky Mountain, Eastern Great Basin and Southern Areas. Initial attack activity was moderate to heavy in Southern California, Northern California and Eastern Great Basin, and light elsewhere. Very high to extreme fire indices were reported in California, Idaho, Montana, Nevada, New Mexico, Oregon,  Utah, Washington and Wyoming.
A dry westerly flow will continue to bring warm and dry conditions across north and central portions of Wyoming and western South Dakota with the continued threat of isolated dry thunderstorms. High temperatures will be 75 to 80 in the mountains, and 85 to 95 at lower elevations. Minimum relative humidity will range from 10 to 20 percent. Winds will be westerly at 10 to 20 mph in Wyoming. A dry westerly flow will dominate the Pacific Northwest bringing mostly sunny conditions, with some morning clouds west of the Cascades. High temperatures will be in the 70's in the inland areas west of the Cascades and 78 to 90 for areas east.  High pressure will shift to the east allowing a return of monsoonal moisture into Utah bringing isolated to scattered thunderstorms. A trough positioned over the Pacific Northwest will result in dry conditions over Idaho. Utah will have high temperatures in the 80's and 90's in the mountains, and 90 to 105 at lower elevations. High temperatures will be 72 to 82 in southwest Idaho, and 80 to 90 in southeast Idaho.  A weak ridge of high pressure will move over the Northern Rockies bringing mostly sunny skies and warm conditions. High temperatures will be 80 to 90 in most areas.

Mid level moisture, combined with afternoon and evening instability will produce isolated thunderstorms over portions of Colorado, eastern Wyoming and the Black Hills region. High temperatures will be 75 to 85 in the mountains, and 85 to 95 at lower elevations. Minimum relative humidity will range from 10 to 20 percent. Winds will be westerly at 15 to 30 mph in western Wyoming, 10 to 20 mph in the Black Hills region, and 5 to 15 percent over the rest of the region. A dry westerly flow will reside over the Pacific Northwest, this will bring partly cloudy conditions west of the Cascades with mostly sunny conditions east. High temperatures will be in the 70's for areas west of the Cascades, and 75 to 85 east.  A weak cold front will move into southwest and eastern Montana during the day. This will bring mostly sunny conditions, and a slight chance of dry thunderstorms during the predawn hours. High temperatures will be 75 to 85 in most areas, and 85 to 95 in the eastern valleys.  The approaching Pacific trough will continue to move over the north and central portions of Nevada, with high pressure continuing to dominate the southern portion of the state and subtropical moisture in the extreme south. Sunny conditions will reside over most of the area, except for the extreme south which will have a slight chance of afternoon thunderstorms. High temperatures will be in the mid 80's to mid 90's, and 95 to 104 south.  A dry westerly flow continues over the Eastern Great Basin bringing mostly sunny conditions to the area. High temperatures in Utah will be 80 to 90 over the mountains, and 90 to 105 at the lower elevations. Idaho high temperatures will be 70 to 80 in the mountains, and 80 to 90 in the valleys. A weak low pressure over northern California will bring mostly sunny skies to the area. High temperatures will be in the upper 70's to mid 90's inland.
*** A FIRE WEATHER WATCH HAS BEEN POSTED IN WESTERN WYOMING FOR WINDY AND DRY CONDITIONS ***

***A RED FLAG WARNING HAS BEEN POSTED IN NORTHEAST CALIFORNIA FOR STRONG SOUTHWEST WINDS AND LOW RELATIVE HUMIDITY***
***A FIRE WEATHER WATCH HAS BEEN POSTED IN NORTHWEST NEVADA FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY***
***A FIRE WEATHER WATCH HAS BEEN POSTED ON THE TAHOE AND ELDORADO NATIONAL FORESTS FOR STRONG SOUTHWEST WINDS AND LOW RELATIVE HUMIDITY***
***A FIRE WEATHER WATCH HAS BEEN POSTED IN EASTERN MONTANA FOR AFTERNOON AND EVENING DRY LIGHTNING AND LOW RELATIVE HUMIDITY***
***A FIRE WEATHER WATCH HAS BEEN POSTED IN UTAH FOR STRONG, GUSTY WINDS AND A DRY, UNSTABLE AIRMASS OVER THE WESTERN DESERTS AND DESERT MOUNTAIN RANGES***

*** A RED FLAG WARNING HAS BEEN POSTED IN CENTRAL AND SOUTHERN WASHINGTON FOR LOW RELATIVE HUMIDITY, HIGH HAINES INDEX, AND BREEZY WINDS ***
*** A FIRE WEATHER WATCH HAS BEEN POSTED IN WESTERN MONTANA FOR AFTERNOON AND EVENING DRY LIGHTNING AND LOW RELATIVE HUMIDITY ***
*** A FIRE WEATHER WATCH HAS BEEN POSTED FOR NORTHEASTERN CALIFORNIA FOR INCREASING AFTERNOON WINDS AND LOW RELATIVE HUMIDITY ***

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Tyros Satellite Data
  August 16, 2001 (Thursday)
National Preparedness Level 4
Eleven new large fires were reported, five in the Northwest, three in Eastern Great Basin, two in Southern Area and one in the Northern Rockies. Twelve large fires reached containment, four in Eastern Great Basin, and two each in the Northwest, Southern California, Northern California, Eastern Great Basin and Western Great Basin. Initial attack activity was moderate in Eastern Great Basin and the Northwest, and light elsewhere. Very high to extreme fire indices were reported in California,Idaho, Michigan, Montana, Nevada, New Mexico, Oregon, Texas, Utah, Washington and Wyoming.

The upper level ridge will begin to shift east as marine air begins to invade the Pacific Northwest. The area will have mostly sunny and hot conditions, with a chance of isolated thunderstorms over the mountains. High temperatures will be 75 to 85, to the lower 90's in the inland valleys west of the Cascades, and 90 to 105 east. Minimum relative humidity will range from 30 to 40 percent west, and 10 to 20 percent east. Winds will be southwest to northwest at 5 to 15 mph becoming 15 to 25 mph with gusts up to 35 mph in the Columbia Gorge in the late afternoon.  Strong high pressure will continue over northern California with mostly clear conditions. High temperatures will be in the upper 80's to 104 inland. Minimum relative humidity will range from 6 to 15 percent inland. Winds will be southwest to northwest at 8 to18 mph in the afternoon.An upper level ridge over the southwest will continue to dominate over Nevada bringing sunny skies.  High temperatures will be 75 to 87 in the mountains, 91 to 99 at lower elevations, and 110 to 115 south. Minimum relative humidity will range from 7 to 22 percent. Winds will be west at 10 to 20 mph in the western mountains, otherwise south to west at 5 to 15 mph.  High pressure will strengthen over the eastern portion of the Great Basin with a continued drying northwest flow bringing mostly sunny conditions with isolated afternoon thunderstorms to Utah and southeast Idaho. High temperatures will be 75 to 85 in the mountains, and in the 90's at lower elevations. Minimum relative humidity will range from 8 to 20 percent, and 25 to 30 percent in the Utah mountains. Winds will be west to northwest at 5 to 15 mph.  High pressure will begin to move over the Northern Rockies bringing partly cloudy conditions with a slight chance of showers and thunderstorms mainly along the Divide. High temperatures will be 82 to 92, up to 110 in the valleys and 65 to 75 in eastern Montana. Minimum relative humidity will range from 15 to 30 percent. Winds will be west to north at 10 to 20 mph with gusts up to 25 mph along the ridges.

*** A RED FLAG WARNING HAS BEEN POSTED IN EASTERN WASHINGTON FOR AFTERNOON LOW RELATIVE HUMIDITY AND HIGH HAINES INDEX ***

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Tyros Satellite Data
  August 15, 2001 (Wednesday)
National Preparedness Level 4
Nine new large fires were reported, three in the Northwest, two in Southern Area, and one each in Southern California, Northern Rockies, Eastern Great Basin and Western Great Basin. Four large fires met containment objectives, three in Western Great Basin and one in Rocky Mountain. Initial attack activity was moderate to heavy in Northern Rockies and Northwest, and light elsewhere. Very high to extreme fire indices were reported in California, Idaho, Michigan, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.
High pressure will remain over the Pacific Northwest bringing mostly sunny skies with possible isolated afternoon thunderstorms east of the Cascades, mainly in the mountains. High temperatures will be 75 to 85 west of the Cascades, and 90 to 105 east.   High pressure continues to reside over northern California bringing mostly clear conditions. High temperatures will be in the upper 80's to 105 inland.  An upper level ridge will continue to dominate over Nevada generating mostly sunny conditions. High temperatures will be 80 to 88 in the mountains, 92 to 100 in the valleys and 109 to 116 south.   A dry westerly flow will continue with a ridge of high pressure continuing to build over the intermountain west. The area will have mostly sunny skies with isolated afternoon thunderstorms, most numerous in the northwest Wyoming mountains. High temperatures will be 75 to 85 in the mountains, and 90's in lower elevations.  A northwest flow with embedded disturbances will touch off isolated thunderstorms. Conditions will be partly cloudy with a slight chance of showers and thunderstorms mainly along the Divide. High temperatures will be 85 to 95 with warmer temperatures in the valley bottoms up 105 in northern Idaho, and 80 to 88 in eastern Montana.

  Infrared  Images (Band 3)
Detailed Infrared view of the Western United States. NOAA 14, 7:41 a.m.
Detailed Infrared view of the Western United States. NOAA 16, 3:13 a.m.

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Tyros Satellite Data
  August 13, 2001 (Monday)
National Preparedness Level 4
Twenty-two new large fires were reported, fifteen in Western Great Basin, two each in Eastern Great Basin and Northwest, and one each in Southern California, Northern California and Southern Areas. Four large fires reached containment, two in Western Great Basin, and one each in Northwest and Southern Areas. Very high to extreme fire indices were reported in California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.
An upper level high pressure continues over the Northern Rockies with some weak disturbances moving northeast producing some isolated to scattered thunderstorms over the area. High temperatures will be in the 80's to near 100. High pressure is rebuilding over northern California bringing mostly clear skies. High temperatures will be in the upper 80's to 100 inland. An upper level ridge will continue to dominate over Nevada with residual subtropical moisture producing a few thunderstorms over the area except for the western portions. This will mean sunny to partly cloudy skies with isolated to widely scattered afternoon and early evening thunderstorms. High temperatures will be 75 to 85 in the mountains, 90's in the valleys, and 90 to 100 south.High pressure continues to strengthen over the Eastern Great Basin, however there will be a surge of monsoonal moisture moving up from the southwest. This will bring mostly cloudy conditions with scattered showers and wet thunderstorms mainly in Utah and southeast Idaho. High temperatures will be in the 70's and 80's in the mountains, and 85 to 95 at lower elevations.High pressure over the Pacific Northwest will continue, bringing mostly sunny to partly cloudy skies to most of the area. There will be a slight chance of showers and thunderstorms over the eastern portion of the region as residual moisture moves out of the area. High temperatures will be in the 80's to 90's,

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Tyros Satellite Data
  August 12, 2001 (Sunday)
National Preparedness Level 3
Eight new large fires were reported, three in the Western Great Basin, two each in Northern California and Northwest, in the Southern Area.  Eight large fires reached containment status, four in Northern California, tow in the Western Great Basin, and one each in the Northern Rockies and Southern Area.  Moderate to heavy initial attack activity was reported in Northern California and Northwest Areas.  Very high to extreme fire indices were reported in California, Idaho, Montana, Nevada, Oregon,
Utah, Washington and Wyoming.
High pressure residing over northern California is slowly weakening as a trough of low pressure sweeps across the state. This will bring mostly clear conditions with a slight chance of afternoon thunderstorms near the Oregon border. High temperatures will be in the upper 80's to 100 inland. An upper level disturbance will move from the south to the north, enhancing the likelihood of thunderstorm development, especially along the Cascades. Inland high temperatures west of the Cascades will be in the mid 70's to lower 90's, and east of the Cascades will be in the mid 80's to near 100. An upper level ridge will continue to dominate over Nevada with residual subtropical moisture
producing a few mostly wet thunderstorms, with some increase in moisture over the southern areas. This will bring mostly sunny to partly cloudy conditions with a chance of isolated to widely scattered afternoon and early evening thunderstorms. High temperatures will be 75 to 85 in the mountains, 90's in the valleys, and 90's to around 100 south. Strong high pressure will move into the Northern Rockies with a somewhat unstable south to southwest flow resulting in the possibility of afternoon and evening thunderstorms. This will bring partly cloudy skies with isolated thunderstorms developing late in the afternoon. High temperatures will be in the upper 70's to lower 90's,

Simulated Natural Color Images (Bands 1, 2 and 3):
Enhanced image of the Western United States. NOAA 16, 3:01 p.m.

Simulated Natural Color Images (Bands 1, 2 and 3):
Enhanced image of the Western United States.  NOAA 14, 8:05 a.m.

Infrared  Images (Band 3)
Detailed Infrared view of California,  Nevada, and Oregon. NOAA 12, 6:59 a.m.
Detailed Infrared view of California,  Nevada, Oregon and Idaho. NOAA 16, 3:41 a.m.

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Tyros Satellite Data
  August 11, 2001 (Saturday)
National Preparedness Level 3
Seven new large fires were reported, three in Western Great Basin, two in Northern California, and one each in Northwest and Southern Areas. Seven large fires also reached containment, two each in Western Great Basin, Eastern Great Basin and Northwest, and one in Southern Area.  Very high to extreme fire indices were reported in California, Connecticut, Idaho, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.
High pressure over northern California will bring mostly clear conditions with partly cloudy skies over the mountains and afternoon cumulus buildup. High temperatures will be in the upper 80's to 101 inland. Strong high pressure will be over the Pacific Northwest while a weak upper level low will remain off the California coast triggering a disturbance over central Oregon. This will bring a chance of thunderstorms over much of southern and eastern Oregon. High temperatures west of the Cascades will be in the 80's and 90's, and in the mid 80's to around 105 on the east side.  An upper level ridge will continue to be dominate over Nevada with residual subtropical moisture moving through the area. Conditions will be mostly sunny to partly cloudy with isolated to widely scattered afternoon and early evening thunderstorms. High temperatures will be in the 80's in the mountains and 90's in the valleys, and 105 to 115 south.  A dry westerly flow will move over the Northern Rockies, bringing the possibility of residual moisture over extreme southwest Montana. Conditions will be mostly sunny with a slight chance of thunderstorms over extreme southwest Montana. High temperatures will be in the upper 70 to lower 90's.

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Tyros Satellite Data
 August 9, 2001 (Thursday)
National Preparedness Level 2
Eleven new large fires were reported, two in Eastern Great Basin, and three each in Northern California, Northwest and Western Great Basin Areas. Six large fires reached containment, three in Western Great Basin, and one each in Southern Area, Northwest and Northern California.  Very high to extreme fire indices were reported in Arizona, California, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and W yoming.
A cooler air mass will move into the Northern Rockies today, bringing partly cloudy conditions and a slight chance of afternoon thunderstorms in the south. High temperatures will be in the 70's and 80's. Monsoonal moisture will spread further north, expanding the threat of storms to the south end of the Blue Mountains and into central Oregon. High temperatures will be in the 80's and 90's, with some areas in central and eastern Oregon reaching near 100. Subtropical moisture continues to move around a strong ridge of high pressure maintaining hot temperatures, scattered thunderstorm in northeast Nevada. The remainder of the state will see isolated thunderstorms in the afternoon and early evening. High temperatures will be in the 90's throughout most locations and may reach 118 degrees in extreme southern portions of the state. High pressure will continue over northern California with moisture moving northward. Partly cloudy conditions with a chance of isolated afternoon and evening thunderstorms will result. High temperatures will be in the 80's to 100 inland. A southerly flow will continue to push moisture up into northern Utah and southwest sections of Idaho bringing isolated to scattered thunderstorms to the area. High temperatures will be in the 80's in the mountains, and 90 to 105 for the rest of the state. Idaho will have high temperatures at 75 to 85 in the mountains, and 85 to 95 at lower elevations. A cold front will move south into eastern Colorado, combined with ample moisture across the area.  This will bring isolated to scattered thunderstorms over Wyoming and dry conditions over western South Dakota. Colorado will have scattered afternoon and evening thunderstorms, with the possibility of some heavy rain with these storms. High temperatures will be in the 60's and 70's in Wyoming, South Dakota and eastern sections of Colorado, and 80 to 90 in western Colorado.

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Tyros Satellite Data
 August 8, 2001 (Wednesday)
National Preparedness Level 2
Four new large fires were reported, one each in Southern California and Western Great Basin, and two in Southern Area. Five large fires were reported contained, two in Southern Area, and one each in Southern California, Eastern Great Basin and Western Great Basin Areas. Very high to extreme fire indices were reported in Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.
High pressure continues to reside over northern California, with a southerly flow around the west side of the ridge which will bring some monsoonal moisture north into the northern Sierra Nevada and Cascades. Conditions will be mostly clear, with partly cloudy skies over the eastern mountains and isolated afternoon thunderstorms along and east of the Sierra Crest with a slight chance over the coastal range. High temperatures will be in the mid 80's in the mountains, and mid 90's to 106 in the inland  valleys.High pressure centered to the east will spread some monsoonal moisture north across southern California. Conditions will be mostly sunny with partly cloudy skies and isolated thunderstorms in the afternoon over the Sierra Nevada, extreme southern mountains and deserts. High temperatures will be in the 90's to 105 in the inland valleys, and 105 to 115 in the deserts and southern inland valleys. An upper level trough and associated dry cold front will move through central Montana resulting in strong northeast and east winds, as well as isolated showers and thunderstorms. High temperatures  will be in the 80's and 90's, except 75 to 85 north.A southeast flow around a strong high pressure will bring isolated dry thunderstorms to Nevada during the afternoon and early evening hours, otherwise clear conditions are expected. High temperatures will be 78 to 100, and 110 to 118 south. The upper level ridge will weaken as a cold front sweeps across Wyoming and South Dakota and a southeasterly flow continues to move monsoonal moisture into Colorado. This will bring thunderstorms to Wyoming and South Dakota. Colorado will have scattered afternoon and evening thunderstorms with heavy rain possible with some of the storms, otherwise partly cloudy through the area. High temperatures will be in the 70's and 80's in the mountains, and 80 to lower 90's at lower elevations. Warm, dry high pressure dominates the Pacific Northwest. Southerly flow aloft will bring enough moisture northward for an increasing possibility of thunderstorms to extreme southern Oregon Cascades. Temperatures will be in the 80's to 90's.

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Tyros Satellite Data
 August 4, 2001 (Saturday)
National Preparedness Level 2
Two new large fires were reported, one in Western Great Basin and one in Eastern Great Basin. Twolarge fires reached containment, one in Northern Rockies and one in Northwest Areas.Very high to extreme fire indices were reported in Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.
A drier airmass is working its way into the Great Basin while monsoon moisture continues to feed into Colorado. This will bring partly cloudy conditions with scattered  showers and thunderstorms over Utah and Colorado. A few dry thunderstorms in northeastern Wyoming and southwestern South Dakota. High temperatures will be in the 70's in the mountains with 90's expected for the lower elevations.A moist southwesterly flow aloft will bring slightly cooler temperatures and a little higher humidity for the Northwest. Morning clouds and a few showers are possible for areas west of the Cascades with partial clearing in the afternoon. Eastern Oregon and Washington will be partly cloudy with a slight chance of wet thunderstorms in northeast Oregon and northern Washington. High temperatures will be in the 60's and 70's west of the Cascades and 70's to the lower 80's in the valleys east of the Cascades.

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Tyros Satellite Data
August 3, 2001 (Friday)
National Preparedness Level 2
Four new large fires were reported, two in Southern Area, and one each in Northern Rockies and Eastern Great Basin Areas. Two large fires reached containment, one in Northern Rockies and onein Eastern Great Basin Areas. Very high to extreme fire indices were reported in Arizona, California, Colorado, Idaho, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.
High pressure over the central United States is circulating moisture through portions of the Great Basin and Rocky Mountain areas. This will bring partly cloudy conditions with scattered thunderstorms, showers and wet thunderstorms over Utah and Colorado. A few dry thunderstorms are possible over Idaho, Wyoming and South Dakota. High temperatures will be in the 70's in the mountains with 90's expected for the lower elevations. An upper ridge over the central United States and an upper level trough along the Pacific coast will give a dry southwesterly flow to the Northern Rockies. This will bring partly cloudy skies with a chance of isolated thunderstorms in the Rockies. High temperatures will be 85 to 95 west, and 90 to 105 east. An upper level trough and an associated weak cold front will swing into the Pacific Northwest. This will bring partly to mostly cloudy skies with some light rain or showers to western Washington and northern Oregon. The possibility of widely scattered thundershowers exist east of the Cascades. High temperatures will be in the 60's and 70's west of the Cascades and mostly in the 80's east of the Cascades, and into the 90's in southeast Oregon.

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Tyros Satellite Data
August 2, 2001 (Thursday)
National Preparedness Level 2
Three new large fires were reported, one in Northern Rockies and two in Rocky Mountain Areas. Two large fires were contained, one each in Eastern Great Basin and Rocky Mountain Areas.  Very high to extreme fire indices were reported in Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.
High pressure centered over the plains will create a southerly flow with tropical moisture trailing into Colorado and southeast Wyoming. The rest of Wyoming and western South Dakota remaining dry and warm. Wyoming and the Black Hills of South Dakota will be sunny and warmer with isolated dry afternoon thunderstorms. Colorado and southeast Wyoming will be mostly cloudy with scattered afternoon thunderstorms and a few heavy showers. High temperatures will be 80 to 95 at lower elevations, and 70's in the mountains. Eastern Great Basin will remain under the southerly flow, providing some monsoonal moisture to eastern portions of Utah although little rainfall is expected. This southerly flow will bring partly cloudy skies with isolated dry thunderstorms to the eastern portions of Utah, and mostly sunny and dry conditions elsewhere. High temperatures will be 75 to 85 in the mountains, 85 to 95 at lower elevations, and 100 to 105 in central and southwest Utah. High pressure will remain over eastern Washington and eastern Oregon, with a weak cold front moving into western Washington and northwestern Oregon in the afternoon. Western Washington and northwestern Oregon will have light rain in the afternoon. Eastern Washington and Oregon will have partly cloudy skies, with mostly sunny conditions in southwestern Oregon. High temperatures will be 65 to 78 west of the Cascades, and 78 to 92 east. High pressure will continue to reside over Southern California bringing mostly clear skies with some coastal fog, low clouds and some cumulus buildup over the southern mountains. High temperatures will be in the 70's and 80's along the coast, 90's to 104 inland, and 100 to 110 in the deserts.

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Tyros Satellite Data
August 1, 2001 (Wednesday)
National Preparedness Level 2
Three new large fires were reported, one in Northern Rockies and two in Rocky Mountain Areas. Four large fires reached containment, two in Western Great Basin, and one  each in Northern California and Northern Rockies Areas.  Very high to extreme fire indices were reported in Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.
A southerly flow will reach the southern portions of the Rocky Mountain region, while the north portions will have a westerly flow keeping the monsoonal moisture to the  South. Wyoming and the Black Hills of South Dakota will have mostly sunny skies with isolated afternoon thunderstorms. Colorado will be partly cloudy with scattered afternoon thunderstorms. High temperatures in Wyoming and South Dakota will be in the 60's in the mountains, and 75 to 85 at lower elevations. Colorado will have high
temperatures in the 70's in the mountains, and 85 to 95 in the valleys. An upper ridge over eastern Montana with a broad low pressure over the Pacific Northwest will result in a dry westerly flow over the northern Rockies. This will bring partly cloudy skies to the area. High temperatures will be 75 to 85. The Eastern Great Basin will have a light westerly flow that will keep monsoonal moisture to the south. Conditions will be mostly sunny with widely scattered thunderstorms in southern Utah. High temperatures will be in the 70's to 85, except 85 to 95 in southwest Utah. A westerly flow over the Pacific Northwest will start out dry but will moisten up across western Washington in the afternoon as a weak weather disturbance approaches. There will be marine cloudiness over western Washington and northwest Oregon. The rest of the region will be mostly sunny. There will be an increasing chance for showers in western Washington this evening. High temperatures will be 65 to 75 in western Washington and northwest Oregon, and 75 to 85 east of the Cascades. High pressure will build over northern California resulting in warmer and drier conditions. High temperatures will be in the 60's along the coast and upper 70's to upper 90's inland. High pressure continues over southern California, resulting in warmer conditions. High temperatures will be in the 70's along the coast, 80's and 90's inland, and 100 to 108 in the lower elevation deserts. A ridge of high pressure approaching from the east will bring mostly sunny conditions to Nevada. High temperatures will be in the mid 80's to 90's in north and central portions, and 100 to 110 south.

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