Alert archive / Montana / Wind Chill Advisories in 2011
Wind Chill Advisory 4, NWS Missoula, MT
NWS Missoula, MT issued this wind chill advisory at Feb 24, 2011, 10:50 AM MST for 5 counties in Montana. It took effect at Feb 24, 2011, 11:00 AM MST. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Feb 24, 2011, 10:50 AM MST (17:50 UTC)
- In effect from
- Feb 24, 2011, 11:00 AM MST
- Expired
- Feb 24, 2011, 9:24 PM MST
- In force
- 10 hr
- Issued by
- NWS Missoula, MT
Counties Flathead County, MT, Lincoln County, MT, Mineral County, MT, Missoula County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 95 km from the middle of the area, began a volume at 17:54 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 5.8 hours before the alert went out and 127 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 0 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 308 m²/s²
- 0-3 km storm-relative helicity
- 390 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
559 WWUS45 KMSO 241750 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1050 AM MST THU FEB 24 2011 MTZ003-250200- /O.EXP.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ /O.EXB.KMSO.WC.W.0002.110224T1800Z-110225T0600Z/ FLATHEAD/MISSION VALLEYS- 1050 AM MST THU FEB 24 2011 ...WIND CHILL WARNING IN EFFECT UNTIL 11 PM MST THIS EVENING... ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 11 PM MST THIS EVENING. THE WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED THROUGH THIS EVENING. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH AS THE DAY CONTINUES. * WIND CHILL: 20 TO 30 BELOW ZERO. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. * LOCATIONS IMPACTED INCLUDE...FLATHEAD VALLEY...MISSION VALLEY...POLSON...FLATHEAD LAKE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ MTZ043-250200- /O.EXP.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ /O.EXB.KMSO.WC.W.0002.110224T1800Z-110225T1200Z/ POTOMAC/SEELEY LAKE REGION- 1050 AM MST THU FEB 24 2011 ...WIND CHILL WARNING IN EFFECT UNTIL 5 AM MST FRIDAY... ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST FRIDAY. THE WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED THROUGH TONIGHT. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH AS THE DAY CONTINUES. * WIND CHILL: 20 TO 30 BELOW ZERO. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ MTZ004-250200- /O.EXP.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ /O.NEW.KMSO.WC.Y.0004.110224T1800Z-110225T0600Z/ LOWER CLARK FORK REGION- 1050 AM MST THU FEB 24 2011 ...WIND CHILL ADVISORY IN EFFECT UNTIL 11 PM MST THIS EVENING... ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT UNTIL 11 PM MST THIS EVENING. THE WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING. * IMPACTS/TIMING: DANGEROUS WIND CHILLS VALUES EXPECTED THROUGH THIS EVENING. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH AS THE DAY CONTINUES. * WIND: EAST/NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * WIND CHILL: 10 TO 20 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ MTZ001-250200- /O.EXP.KMSO.WW.Y.0022.000000T0000Z-110224T1800Z/ /O.NEW.KMSO.WC.Y.0004.110224T1800Z-110225T0600Z/ KOOTENAI/CABINET REGION- 1050 AM MST THU FEB 24 2011 ...WIND CHILL ADVISORY IN EFFECT UNTIL 11 PM MST THIS EVENING... ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT UNTIL 11 PM MST THIS EVENING. THE WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING. * IMPACTS/TIMING: DANGEROUS WIND CHILL VALUES EXPECTED THROUGH THIS EVENING. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH AS THE DAY CONTINUES. * WIND: EAST/NORTHEAST 15 TO 20 MPH WITH GUSTS TO 30 MPH. * WIND CHILL: 10 TO 20 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ IDZ005>008-250000- /O.CON.KMSO.WS.W.0009.000000T0000Z-110225T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 950 AM PST THU FEB 24 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON. * IMPACTS/TIMING: SNOW WILL REDEVELOP LATER THIS AFTERNOON INTO THIS EVENING. PERIODS OF MODERATE TO HEAVY SNOW WILL OCCUR DURING THIS TIME AND CAUSE REDUCTIONS TO VISIBILITIES AND SLICK/SNOW COVERED ROADWAYS. * SNOW ACCUMULATIONS: ACCUMULATIONS OF 3 TO 6 INCHES IN VALLEYS. 6 TO 8 INCHES OVER LOLO PASS...WHITEBIRD GRADE AND HIGHER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY... GREER GRADE...HIGHWAY 12 OROFINO TO KOOSKIA...HIGHWAY 95 SLATE CREEK TO RIGGINS...WHITE BIRD GRADE $$ MTZ005-242100- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T2100Z/ MISSOULA/BITTERROOT VALLEYS- 1050 AM MST THU FEB 24 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON. * IMPACTS/TIMING: THE COMBINATION OF SNOW AND WIND WILL CONTINUE TO PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY EAST WINDS WILL ALSO PRODUCE DANGEROUS WIND CHILLS. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS OF 1 TO 3 INCHES. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: MISSOULA VALLEY...EAST WINDS INCREASING TO 20 TO 25 MPH WITH GUSTS TO 40 MPH. BITTERROOT VALLEY...NORTH WINDS TO 15 TO 25 MPH WITH GUSTS TO 40 MPH. * WIND CHILL: 10 TO 20 BELOW ZERO LATE TODAY. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ MTZ007-250000- /O.CON.KMSO.WS.W.0008.000000T0000Z-110225T0000Z/ BUTTE/BLACKFOOT REGION- 1050 AM MST THU FEB 24 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY EAST WINDS WILL ALSO PRODUCE EXTREMELY DANGEROUS WIND CHILLS. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS OF 2 TO 4 INCHES. AN ADDITIONAL 6 TO 8 INCHES IN GEORGETOWN LAKE AND OVER HIGH TERRAIN. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: EAST TO NORTHEAST 20 TO 25 MPH WITH GUSTS TO 40 MPH. * WIND CHILL: 15 TO 30 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS $$ MTZ002-250200- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T0600Z/ WEST GLACIER REGION- 1050 AM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED THROUGH TONIGHT. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH AS THE DAY CONTINUES. * WIND CHILL: 20 TO 30 BELOW ZERO. * WIND: NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ IDZ009-010-MTZ006-250000- /O.CON.KMSO.WW.Y.0022.000000T0000Z-110225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- BITTERROOT/SAPPHIRE MOUNTAINS- 1050 AM MST THU FEB 24 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL CONTINUE. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW-COVERED ROADWAYS WILL CREATE HAZARDOUS DRIVING CONDITIONS. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS OF 1 TO 3 INCHES LOWER ELEVATIONS. AN ADDITIONAL 4 TO 6 INCHES OVER LOST TRAIL PASS AND HIGH TERRAIN. * LOCATIONS IMPACTED INCLUDE...SHOUP...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS...SALMON...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$
4 follow-up statements
015 WWUS45 KMSO 241828 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1128 AM MST THU FEB 24 2011 MTZ005-250230- /O.CAN.KMSO.WS.W.0008.000000T0000Z-110224T2100Z/ /O.EXB.KMSO.WC.W.0002.000000T0000Z-110225T1600Z/ MISSOULA/BITTERROOT VALLEYS- 1128 AM MST THU FEB 24 2011 ...WIND CHILL WARNING IN EFFECT UNTIL 9 AM MST FRIDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 9 AM MST FRIDAY. THE WINTER STORM WARNING HAS BEEN CANCELED. * IMPACTS/TIMING: COLD ARCTIC AIR WILL CONTINUE TO MOVE INTO THE AREA THROUGH TONIGHT WITH BRISK EAST TO NORTHEAST WINDS CREATING DANGEROUSLY LOW WIND CHILLS AT TIMES. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS UP TO ONE INCH POSSIBLE. * WIND: MISSOULA VALLEY...EAST WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH. WIND DECREASING LATE TONIGHT. BITTERROOT VALLEY...NORTH WINDS TO 15 TO 25 MPH WITH GUSTS TO 30 MPH. * WIND CHILL: 15 TO 25 BELOW ZERO THROUGH EARLY FRIDAY. * LOCATIONS IMPACTED INCLUDE...MISSOULA...STEVENSVILLE...CORVALLIS...HAMILTON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ IDZ005>008-250000- /O.CON.KMSO.WS.W.0009.000000T0000Z-110225T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 1028 AM PST THU FEB 24 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON. * IMPACTS/TIMING: SNOW WILL REDEVELOP LATER THIS AFTERNOON INTO THIS EVENING. PERIODS OF MODERATE TO HEAVY SNOW WILL OCCUR DURING THIS TIME AND CAUSE REDUCTIONS TO VISIBILITIES AND SLICK/SNOW COVERED ROADWAYS. * SNOW ACCUMULATIONS: ACCUMULATIONS OF 3 TO 6 INCHES IN VALLEYS. 6 TO 8 INCHES OVER LOLO PASS...WHITEBIRD GRADE AND HIGHER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY... GREER GRADE...HIGHWAY 12 OROFINO TO KOOSKIA...HIGHWAY 95 SLATE CREEK TO RIGGINS...WHITE BIRD GRADE $$ MTZ007-250000- /O.CON.KMSO.WS.W.0008.000000T0000Z-110225T0000Z/ BUTTE/BLACKFOOT REGION- 1128 AM MST THU FEB 24 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY EAST WINDS WILL ALSO PRODUCE EXTREMELY DANGEROUS WIND CHILLS. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS OF 2 TO 4 INCHES. AN ADDITIONAL 6 TO 8 INCHES IN GEORGETOWN LAKE AND OVER HIGH TERRAIN. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: EAST TO NORTHEAST 20 TO 25 MPH WITH GUSTS TO 40 MPH. * WIND CHILL: 15 TO 30 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS $$ MTZ043-250230- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T1200Z/ POTOMAC/SEELEY LAKE REGION- 1128 AM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED THROUGH TONIGHT. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH AS THE DAY CONTINUES. * WIND CHILL: 20 TO 30 BELOW ZERO. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 200 BONNER TO GREENOUGH... HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ MTZ002-003-250230- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T0600Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 1128 AM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED THROUGH THIS EVENING. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH AS THE DAY CONTINUES. * WIND CHILL: 20 TO 30 BELOW ZERO. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ IDZ009-010-MTZ006-250000- /O.CON.KMSO.WW.Y.0022.000000T0000Z-110225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- BITTERROOT/SAPPHIRE MOUNTAINS- 1128 AM MST THU FEB 24 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL CONTINUE. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW-COVERED ROADWAYS WILL CREATE HAZARDOUS DRIVING CONDITIONS. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS OF 1 TO 3 INCHES LOWER ELEVATIONS. AN ADDITIONAL 4 TO 6 INCHES OVER LOST TRAIL PASS AND HIGH TERRAIN. * LOCATIONS IMPACTED INCLUDE...SHOUP...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS...SALMON...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ001-250230- /O.CON.KMSO.WC.Y.0004.000000T0000Z-110225T0600Z/ KOOTENAI/CABINET REGION- 1128 AM MST THU FEB 24 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: DANGEROUS WIND CHILL VALUES EXPECTED THROUGH THIS EVENING. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH AS THE DAY CONTINUES. * WIND: EAST/NORTHEAST 15 TO 20 MPH WITH GUSTS TO 30 MPH. * WIND CHILL: 10 TO 20 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ MTZ004-250230- /O.CON.KMSO.WC.Y.0004.000000T0000Z-110225T0600Z/ LOWER CLARK FORK REGION- 1128 AM MST THU FEB 24 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: DANGEROUS WIND CHILLS VALUES EXPECTED THROUGH THIS EVENING. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH AS THE DAY CONTINUES. * WIND: EAST/NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * WIND CHILL: 10 TO 20 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$
598 WWUS45 KMSO 242116 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 216 PM MST THU FEB 24 2011 IDZ005>008-250600- /O.CAN.KMSO.WS.W.0009.000000T0000Z-110225T0000Z/ /O.EXB.KMSO.WW.Y.0022.000000T0000Z-110225T1800Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 116 PM PST THU FEB 24 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST FRIDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 10 AM PST FRIDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL REDEVELOP TONIGHT. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW- COVERED ROADWAYS WILL CREATE DANGEROUS DRIVING CONDITIONS. * SNOW ACCUMULATIONS: 2 TO 5 INCHES IN LOWER ELEVATIONS. HIGHER AMOUNTS UP TO 7 INCHES IN HIGH TERRAIN. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY... GREER GRADE...HIGHWAY 12 OROFINO TO KOOSKIA...HIGHWAY 95 SLATE CREEK TO RIGGINS...WHITE BIRD GRADE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR ICE ACCUMULATIONS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ007-250600- /O.CAN.KMSO.WS.W.0008.000000T0000Z-110225T0000Z/ /O.EXA.KMSO.WC.W.0002.000000T0000Z-110225T1600Z/ BUTTE/BLACKFOOT REGION- 216 PM MST THU FEB 24 2011 ...WIND CHILL WARNING IN EFFECT UNTIL 9 AM MST FRIDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 9 AM MST FRIDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER TONIGHT. * WIND: EAST/NORTHEAST 20 TO 25 MPH WITH GUSTS TO 35 MPH. * WIND CHILL: 25 TO 35 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ MTZ043-250600- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T1200Z/ POTOMAC/SEELEY LAKE REGION- 216 PM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER TONIGHT. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. * WIND CHILL: 25 TO 35 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH. && $$ MTZ002-003-250600- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T0600Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 216 PM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER TONIGHT. * WIND CHILL: 25 TO 35 BELOW ZERO. * WIND: NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON && $$ MTZ005-250600- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T1600Z/ MISSOULA/BITTERROOT VALLEYS- 216 PM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY. * IMPACTS/TIMING: COLD ARCTIC AIR WILL CONTINUE TO MOVE INTO THE AREA THROUGH TONIGHT WITH BRISK EAST TO NORTHEAST WINDS CREATING DANGEROUSLY LOW WIND CHILLS AT TIMES. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS UP TO ONE INCH POSSIBLE. * WIND: MISSOULA VALLEY...EAST WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH. BITTERROOT VALLEY...NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH. * WIND CHILL: 15 TO 25 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA. && $$ IDZ009-010-MTZ006-250000- /O.CON.KMSO.WW.Y.0022.000000T0000Z-110225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- BITTERROOT/SAPPHIRE MOUNTAINS- 216 PM MST THU FEB 24 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL CONTINUE. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW-COVERED ROADWAYS WILL CREATE HAZARDOUS DRIVING CONDITIONS. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS OF 1 TO 3 INCHES LOWER ELEVATIONS. AN ADDITIONAL 4 TO 6 INCHES OVER LOST TRAIL PASS AND HIGH TERRAIN. * LOCATIONS IMPACTED INCLUDE...SHOUP...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS...SALMON...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ001-250600- /O.CON.KMSO.WC.Y.0004.000000T0000Z-110225T0600Z/ KOOTENAI/CABINET REGION- 216 PM MST THU FEB 24 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER THIS EVENING. * WIND: EAST/NORTHEAST 15 TO 20 MPH WITH GUSTS TO 30 MPH. * WIND CHILL: 10 TO 20 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH. && $$ MTZ004-250600- /O.CON.KMSO.WC.Y.0004.000000T0000Z-110225T0600Z/ LOWER CLARK FORK REGION- 216 PM MST THU FEB 24 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: DANGEROUS WIND CHILLS VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER THIS EVENING. * WIND: EAST/NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * WIND CHILL: 10 TO 20 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN. && $$
041 WWUS45 KMSO 242338 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 438 PM MST THU FEB 24 2011 IDZ009-010-MTZ006-250045- /O.EXP.KMSO.WW.Y.0022.000000T0000Z-110225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- BITTERROOT/SAPPHIRE MOUNTAINS- 438 PM MST THU FEB 24 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: THE SNOWFALL HAS DECREASED TO JUST SOME LIGHT SNOW FLURRIES...THEREFORE THE ADVISORY WILL BE ALLOWED TO EXPIRE. * LOCATIONS IMPACTED INCLUDE...SHOUP...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS...SALMON...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ007-250600- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T1600Z/ BUTTE/BLACKFOOT REGION- 438 PM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER TONIGHT. * WIND: EAST/NORTHEAST 20 TO 25 MPH WITH GUSTS TO 35 MPH. * WIND CHILL: 25 TO 35 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ MTZ043-250600- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T1200Z/ POTOMAC/SEELEY LAKE REGION- 438 PM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER TONIGHT. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. * WIND CHILL: 25 TO 35 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 200 BONNER TO GREENOUGH... HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH $$ MTZ002-003-250600- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T0600Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 438 PM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER TONIGHT. * WIND CHILL: 25 TO 35 BELOW ZERO. * WIND: NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON $$ MTZ005-250600- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T1600Z/ MISSOULA/BITTERROOT VALLEYS- 438 PM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY. * IMPACTS/TIMING: COLD ARCTIC AIR WILL CONTINUE TO MOVE INTO THE AREA THROUGH TONIGHT WITH BRISK EAST TO NORTHEAST WINDS CREATING DANGEROUSLY LOW WIND CHILLS AT TIMES. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS UP TO ONE INCH POSSIBLE. * WIND: MISSOULA VALLEY...EAST WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH. BITTERROOT VALLEY...NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH. * WIND CHILL: 15 TO 25 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ IDZ005>008-250600- /O.CON.KMSO.WW.Y.0022.000000T0000Z-110225T1800Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 338 PM PST THU FEB 24 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL REDEVELOP TONIGHT. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW- COVERED ROADWAYS WILL CREATE DANGEROUS DRIVING CONDITIONS. * SNOW ACCUMULATIONS: 2 TO 5 INCHES IN LOWER ELEVATIONS. HIGHER AMOUNTS UP TO 7 INCHES IN HIGH TERRAIN. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY... GREER GRADE...HIGHWAY 12 OROFINO TO KOOSKIA...HIGHWAY 95 SLATE CREEK TO RIGGINS...WHITE BIRD GRADE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR ICE ACCUMULATIONS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ001-250600- /O.CON.KMSO.WC.Y.0004.000000T0000Z-110225T0600Z/ KOOTENAI/CABINET REGION- 438 PM MST THU FEB 24 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER THIS EVENING. * WIND: EAST/NORTHEAST 15 TO 20 MPH WITH GUSTS TO 30 MPH. * WIND CHILL: 10 TO 20 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH $$ MTZ004-250600- /O.CON.KMSO.WC.Y.0004.000000T0000Z-110225T0600Z/ LOWER CLARK FORK REGION- 438 PM MST THU FEB 24 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: DANGEROUS WIND CHILLS VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER THIS EVENING. * WIND: EAST/NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * WIND CHILL: 10 TO 20 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN $$
423 WWUS45 KMSO 250424 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 924 PM MST THU FEB 24 2011 MTZ001-004-250530- /O.CAN.KMSO.WC.Y.0004.000000T0000Z-110225T0600Z/ KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- 924 PM MST THU FEB 24 2011 ...WIND CHILL ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WIND CHILL ADVISORY. ALTHOUGH TEMPERATURES WILL BE VERY COLD TONIGHT...WIND SPEEDS WILL REMAIN BELOW 5 MPH. THEREFORE...THE WIND CHILL ADVISORY HAS BEEN CANCELLED. $$ MTZ002-003-251200- /O.EXT.KMSO.WC.W.0002.000000T0000Z-110225T1200Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 924 PM MST THU FEB 24 2011 ...WIND CHILL WARNING NOW IN EFFECT UNTIL 5 AM MST FRIDAY... THE WIND CHILL WARNING IS NOW IN EFFECT UNTIL 5 AM MST FRIDAY. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER TONIGHT. * WIND CHILL: 25 TO 35 BELOW ZERO. * WIND: NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON $$ MTZ007-251200- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T1600Z/ BUTTE/BLACKFOOT REGION- 924 PM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER TONIGHT. * WIND: EAST/NORTHEAST 20 TO 25 MPH WITH GUSTS TO 35 MPH. * WIND CHILL: 25 TO 35 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ MTZ043-251200- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T1200Z/ POTOMAC/SEELEY LAKE REGION- 924 PM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * IMPACTS/TIMING: EXTREMELY DANGEROUS WIND CHILL VALUES EXPECTED. LIGHT SNOW ACCUMULATIONS ARE ALSO EXPECTED BUT WILL DIMINISH LATER TONIGHT. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. * WIND CHILL: 25 TO 35 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 200 BONNER TO GREENOUGH... HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH $$ MTZ005-251200- /O.CON.KMSO.WC.W.0002.000000T0000Z-110225T1600Z/ MISSOULA/BITTERROOT VALLEYS- 924 PM MST THU FEB 24 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY. * IMPACTS/TIMING: COLD ARCTIC AIR WILL CONTINUE TO MOVE INTO THE AREA THROUGH TONIGHT WITH BRISK EAST TO NORTHEAST WINDS CREATING DANGEROUSLY LOW WIND CHILLS AT TIMES. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS UP TO ONE INCH POSSIBLE. * WIND: MISSOULA VALLEY...EAST WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH. BITTERROOT VALLEY...NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH. * WIND CHILL: 15 TO 25 BELOW ZERO. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ IDZ005>008-251200- /O.CON.KMSO.WW.Y.0022.000000T0000Z-110225T1800Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 824 PM PST THU FEB 24 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL REDEVELOP TONIGHT. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW- COVERED ROADWAYS WILL CREATE DANGEROUS DRIVING CONDITIONS. * SNOW ACCUMULATIONS: 2 TO 5 INCHES IN LOWER ELEVATIONS. HIGHER AMOUNTS UP TO 7 INCHES IN HIGH TERRAIN. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY... GREER GRADE...HIGHWAY 12 OROFINO TO KOOSKIA...HIGHWAY 95 SLATE CREEK TO RIGGINS...WHITE BIRD GRADE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR ICE ACCUMULATIONS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
What forecasters said that day
The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this wind chill advisory went out at Feb 24, 7:26 AM MST, 3 hours 24 minutes earlier.
Area forecast discussion, Feb 24, 7:26 AM MST, 3 hours 24 minutes before
AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE MISSOULA MT
726 AM MST THU FEB 24 2011
.UPDATE...ISSUED A WIND CHILL WARNING FOR GLACIER PARK AREA
THROUGH THIS EVENING.
&&
.DISCUSSION...COLD ARCTIC AIR WILL CONTINUE TO PUSH OVER THE
DIVIDE AND PRODUCE EXTREMELY LOW WIND CHILLS THROUGH TODAY. IN
GLACIER PARK...WIND CHILLS WILL BE 20 TO 35 BELOW ZERO MAKING THIS
A VERY DANGEROUS SITUATION FOR PEOPLE AND ANIMALS EXPOSED.
CONDITIONS ARE EXPECTED TO PERSIST WELL INTO THIS EVENING BEFORE
WINDS FINALLY LESSEN TONIGHT. THE MAIN IMPACT WILL CONTINUE TO BE
THE GUSTY EAST WINDS AND RESULTING WIND CHILLS...HOWEVER SOME
LIGHT ADDITIONAL SNOW ACCUMULATIONS ARE POSSIBLE. SNOW WILL TAPER
OFF AS THE DAY CONTINUES.
&&
.AVIATION...THE CURRENT WINTER STORM OVER THE NORTHERN ROCKIES WILL
CONTINUE TO IMPACT AIR TERMINALS DURING THE NEXT 24 HOURS. FOR
KGPI...THE MAIN IMPACT WILL BE STRONG NORTHEAST WINDS GUSTING TO
35 MPH. BLOWING SNOW WILL REDUCE GROUND VISIBILITY AT TIMES. FOR
KMSO...SNOW AND BLOWING SNOW WILL PERIODICALLY DECREASE VISIBILITY
THROUGH THIS AFTERNOON. FOR KBTM...THERE WILL BE SOME BURSTS OF
SNOW AND WIND THAT WILL DECREASE VISIBILITY THROUGH 25/0000Z.
NORTH WINDS WILL BE GUSTING TO 30 MPH FOR A TIME DURING TODAY. FOR
KSMN...A COMBINATION OF SNOW AND VARIABLY GUSTY WINDS WILL BE
PRESENT BETWEEN 24/1800Z AND 25/0600Z. BRIEF REDUCTIONS IN
VISIBILITY AND CEILINGS WILL BE PRESENT DURING THIS TIME.
&&
.PREV DISCUSSION... /ISSUED 540 AM MST THU FEB 24 2011/
UPDATE...ADDED WINTER WEATHER ADVISORIES FOR KOOTENAI/CABINET AND
WEST GLACIER REGIONS THROUGH LATE THIS MORNING.
DISCUSSION...SNOW AND GUSTY EAST WINDS WILL CONTINUE TO CREATE
AREAS OF BLOWING/DRIFTING SNOW...RAPID REDUCTIONS TO
VISIBILITIES...DANGEROUS WIND CHILLS OF 10 TO 30 DEGREES BELOW
ZERO AND HAZARDOUS DRIVING CONDITIONS THROUGH LATE THIS MORNING. A
WINTER WEATHER ADVISORY HAS BEEN ISSUED TO ACCOUNT FOR THESE
CONDITIONS.
AVIATION...THE CURRENT WINTER STORM OVER THE NORTHERN ROCKIES WILL
CONTINUE TO IMPACT AIR TERMINALS DURING THE NEXT 24 HOURS. FOR
KGPI...THE SNOW THREAT WILL BE QUICKLY DIMINISHING DURING THIS
TIME...HOWEVER STRONG NORTHEAST WINDS GUSTING TO 35 MPH WILL BE
PRESENT THROUGH 25/0000Z. BLOWING SNOW WILL REDUCE GROUND VISIBILITY
AT TIMES. FOR KMSO...SNOW AND BLOWING SNOW WILL PERIODICALLY
DECREASE VISIBILITY AND CEILINGS THROUGH 24/1800Z. STRONG EAST WINDS
GUSTING TO 40 MPH WILL BE PRESENT DURING THIS MORNING THROUGH
25/0600Z. FOR KBTM...THERE WILL BE SOME BURSTS OF SNOW AND WIND THAT
WILL DECREASE VISIBILITY AND CEILINGS FOR A TIME BETWEEN 24/1200Z
AND 25/0000Z. NORTH WINDS WILL BE GUSTING TO 30 MPH FOR A TIME
DURING TODAY. FOR KSMN...A COMBINATION OF SNOW AND VARIABLY GUSTY
WINDS WILL BE PRESENT BETWEEN 24/1800Z AND 25/0600Z. BRIEF
REDUCTIONS IN VISIBILITY AND CEILINGS WILL BE PRESENT DURING THIS
TIME.
PREV DISCUSSION... /ISSUED 413 AM MST THU FEB 24 2011/
.TREACHEROUS WINTER CONDITIONS ACROSS THE NORTHERN ROCKIES TODAY...
.BITTERLY COLD WITH DANGEROUS WIND CHILLS TONIGHT THROUGH FRIDAY...
DISCUSSION...
THE COMBINATION OF SNOW...GUSTY WINDS AND BITTERLY COLD TEMPERATURES
WILL CREATE THE FOLLOWING IMPACTS TODAY THROUGH FRIDAY MORNING:
* BLOWING AND DRIFTING OF SNOW
* LOCAL BLIZZARD CONDITIONS
* RAPID REDUCTIONS TO VISIBILITIES
* TREACHEROUS DRIVING CONDITIONS
* DANGEROUS WIND CHILLS OF 20 TO 40 BELOW ZERO
THE ARCTIC FRONT IS STRADDLED OVER WESTERN MONTANA EARLY THIS
MORNING. PACIFIC MOISTURE STREAMING INTO THE AREA FROM AN UPPER
LEVEL LOW ON THE WASHINGTON COAST IS ENHANCING PRECIPITATION IN
NORTH CENTRAL IDAHO AND NORTHWEST MONTANA/IDAHO PANHANDLE...
CONTINUING THE THREAT FOR HEAVY SNOW IN THESE AREAS TODAY.
UPSTREAM...THE SPOKANE WFO REPORTED IMPRESSIVE SNOWFALL RATES OF 2
INCHES PER HOUR AROUND 1 AM MST THIS MORNING. AS THIS MOISTURE
FLOWS INTO THE REST OF WESTERN MONTANA...IT WILL INTERACT WITH
THE ARCTIC FRONT AND ENHANCE SNOWFALL...ESPECIALLY THIS MORNING.
STRONG AND GUSTY EAST WINDS WILL ALSO BE THE MOST INTENSE THIS
MORNING BUT WILL REMAIN GUSTY THROUGH THE DAY...GRADUALLY TAPERING
OFF BY FRIDAY MORNING. MEANWHILE...COLD CANADIAN AIR HAS
INFILTRATED WESTERN MONTANA AND WILL CONTINUE TO DRIVE
TEMPERATURES DOWN IN THE NORTHERN ROCKIES THROUGH AT LEAST
SATURDAY MORNING BEFORE MODERATING. THE EXTREME COLD MAY ALSO
IMPACT LIVESTOCK...ESPECIALLY LIVESTOCK YOUNG.
THIS ARCTIC AIR MASS IS ANOMALOUSLY COLD FOR LATE FEBRUARY. HIGH
TEMPERATURES ON THURSDAY AND FRIDAY WILL RUN AROUND 30 DEGREES BELOW
AVERAGE AND LOW TEMPS FRIDAY AND SATURDAY MORNINGS WILL RUN 30 TO 40
DEGREES BELOW NORMAL. FORECAST LOWS ARE APPROACHING RECORD COLD
VALUES IN NORTHWEST MONTANA DURING THIS TIME...AND FORECAST HIGHS
COULD BREAK RECORD LOW MAXIMUM TEMPERATURES IN WESTERN MONTANA AS
WELL. A PUBLIC INFORMATION STATEMENT INDICATING FORECAST
TEMPS/RECORD TEMPS HAS BEEN HEADLINED ON THE
WWW.WEATHER.GOV/MISSOULA HOME PAGE...AND ALSO GIVES AVERAGE
TEMPERATURES AS A COMPARISON.
SATURDAY NIGHT THROUGH MONDAY NIGHT...ALL MODEL GUIDANCE SUGGEST
THAT INTENSE WEST TO EAST FLOW ALOFT WILL DEVELOP OVER THE NORTHERN
ROCKIES DURING OVERNIGHT SATURDAY. THIS RELATIVELY WARM AND MOIST
PACIFIC FLOW WILL QUICKLY MODERATE TEMPERATURES ACROSS THE REGION.
CONSIDERING THAT THE PACIFIC JET STREAM WILL ACCOMPANY THIS PATTERN
CHANGE...AREA MOUNTAIN RANGES WILL BE FAVORED FOR A PROLONGED SNOW
EVENT WITH MODERATE ACCUMULATIONS. WESTERN MONTANA FROM MISSOULA
NORTHWARD HAVE THE BEST CHANCE FOR PRECIPITATION...HOWEVER THE
FLATHEAD AND MISSION VALLEYS ARE LIKELY TO BE IN A RELATIVE
RAIN/SNOW SHADOW FOR MUCH OF THIS TIME.
TUESDAY THROUGH WEDNESDAY...MODELS DEPICTED A RIDGE OF HIGH PRESSURE
BUILDING OVER THE INLAND PACIFIC NORTHWEST...FURTHER WARMING
TEMPERATURES AND DIMINISHING THE THREAT OF PRECIPITATION OVER
NORTHWEST MONTANA. THE RIDGE WILL BE DEVELOPING AHEAD OF A VIGOROUS
PACIFIC STORM SYSTEM.
THURSDAY ONWARD...MODELS ARE IN BASIC AGREEMENT ON THE LARGE
SCALE...DEPICTING A VIGOROUS PACIFIC STORM SYSTEM MOVING OVER THE
NORTHERN ROCKIES BETWEEN THURSDAY AND SATURDAY. SPECIFIC STORM
DETAILS ARE UNCLEAR AT THE MOMENT...HOWEVER THERE IS HIGH CONFIDENCE
OF A CONTINUED STORMY FOR LATE NEXT WEEK AND THROUGH THE WEEKEND.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY UNTIL 5 PM MST THIS AFTERNOON
BITTERROOT/SAPPHIRE MOUNTAINS.
WINTER STORM WARNING UNTIL 5 PM MST THIS AFTERNOON
BUTTE/BLACKFOOT REGION.
WINTER STORM WARNING UNTIL 2 PM MST THIS AFTERNOON
MISSOULA/BITTERROOT VALLEYS.
WINTER STORM WARNING UNTIL 11 AM MST THIS MORNING LOWER CLARK
FORK REGION.
WINTER STORM WARNING UNTIL 11 AM MST THIS MORNING
FLATHEAD/MISSION VALLEYS.
WIND CHILL WARNING UNTIL 11 PM MST THIS EVENING WEST GLACIER
REGION.
WINTER WEATHER ADVISORY UNTIL 11 AM MST THIS MORNING
KOOTENAI/CABINET REGION.
WINTER STORM WARNING UNTIL 11 AM MST THIS MORNING POTOMAC/SEELEY
LAKE REGION.
ID...WINTER WEATHER ADVISORY UNTIL 5 PM MST THIS AFTERNOON EASTERN
LEMHI COUNTY...WESTERN LEMHI COUNTY.
WINTER STORM WARNING UNTIL 4 PM PST THIS AFTERNOON LOWER HELLS
CANYON/SALMON RIVER REGION...NORTHERN CLEARWATER
MOUNTAINS...OROFINO/GRANGEVILLE REGION...SOUTHERN
CLEARWATER MOUNTAINS.
&&
UPDATE...ALLEGRETTO
PREVIOUS DISCUSSION....ZUMPFE
AVIATION...ALLEGRETTOThe office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 7:34 AM MST | Wind Chill Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 3 more | 25 hr |
Nearby
Wind Chill Advisories in Montana, 2011Every wind chill advisory in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.