Alert archive / Montana / Winter Storm Warnings in 2011
Winter Storm Warning 3, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Jan 21, 2011, 3:29 AM MST for 5 counties in Montana. It took effect at Jan 21, 2011, 4:00 PM MST. It was in force for 17 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jan 21, 2011, 3:29 AM MST (10:29 UTC)
- In effect from
- Jan 21, 2011, 4:00 PM MST
- Expired
- Jan 22, 2011, 8:52 AM MST
- In force
- 17 hr
- Issued by
- NWS Missoula, MT
Counties Flathead County, MT, Granite County, MT, Lake County, MT, Missoula County, MT, Ravalli County, MT
The radar
The Missoula radar (KMSX), 7 km from the middle of the area, began a volume at 10:30 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 22, 6:00 AM MST | HEAVY SNOW 12 | Lost Trail Pass, MT | 12 INCHES OF SNOW IN PREVIOUS 12 HOURS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 10.5 hours before the alert went out and 198 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
- 1147 m above ground
- 0-6 km bulk shear
- 83 kt
- 0-1 km storm-relative helicity
- 370 m²/s²
- 0-3 km storm-relative helicity
- 304 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
735 WWUS45 KMSO 211029 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 329 AM MST FRI JAN 21 2011 MTZ006-211830- /O.UPG.KMSO.WS.A.0002.110121T2300Z-110122T1600Z/ /O.NEW.KMSO.WS.W.0003.110121T2300Z-110122T1600Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 329 AM MST FRI JAN 21 2011 ...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 AM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 AM MST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW...ALONG WITH BLOWING SNOW...IS POSSIBLE LATE FRIDAY INTO SATURDAY MORNING OVER LOST TRAIL PASS. LOW VISIBILITIES...AND SIGNIFICANT SNOW ACCUMULATIONS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. LOLO PASS AND ELEVATIONS ELSEWHERE ABOVE 4000 FEET ARE EXPECTED TO RECEIVE LESSER AMOUNTS OF SNOW. * SNOW ACCUMULATIONS: 12 TO 15 INCHES OF SNOW IS POSSIBLE OVER LOST TRAIL PASS. 6 TO 8 INCHES POSSIBLE OVER LOLO PASS. * WINDS: WEST WINDS 15 TO 25 MPH SHOULD PRODUCE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ004-211830- /O.NEW.KMSO.WW.Y.0012.110121T2100Z-110122T0900Z/ LOWER CLARK FORK REGION- 329 AM MST FRI JAN 21 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 AM MST SATURDAY ABOVE 3500 FEET... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW ABOVE 3500 FEET...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 AM MST SATURDAY. * IMPACTS/TIMING: PERIODS OF SNOW...HEAVY AT TIMES...WILL IMPACT TRAVEL OVER LOOKOUT PASS AND ACROSS ADJACENT LOCATIONS THIS AFTERNOON AND EVENING. HAZARDOUS TRAVEL CONDITIONS ARE ANTICIPATED OVER EVARO HILL AS WELL. * SNOW ACCUMULATIONS: 5 TO 8 INCHES IN THE HIGHER ELEVATIONS WITH 3 TO 6 INCHES IN THE LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ043-211830- /O.NEW.KMSO.WW.Y.0012.110122T0000Z-110122T1200Z/ POTOMAC/SEELEY LAKE REGION- 329 AM MST FRI JAN 21 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST SATURDAY FOR HIGHWAY 83 SEELEY LAKE TO CONDON... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW FOR HIGHWAY 83 SEELEY LAKE TO CONDON...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST SATURDAY. * IMPACTS/TIMING: PERIODS OF SNOW...HEAVY AT TIMES...WILL IMPACT TRAVEL ALONG HIGHWAY 83 FROM SEELEY LAKE TO CONDON. ADJACENT LOCATIONS CAN EXPECT SIMILAR CONDITIONS. * SNOW ACCUMULATIONS: 4 TO 6 INCHES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
6 follow-up statements
713 WWUS45 KMSO 211735 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1035 AM MST FRI JAN 21 2011 MTZ002-220300- /O.EXB.KMSO.WS.W.0003.110122T0000Z-110122T1800Z/ WEST GLACIER REGION- 1035 AM MST FRI JAN 21 2011 ...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST SATURDAY FOR MARIAS PASS... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW FOR MARIAS PASS...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST SATURDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW...ALONG WITH BLOWING SNOW...IS LIKELY LATE FRIDAY INTO SATURDAY MORNING OVER MARIAS. LOW VISIBILITIES AND SIGNIFICANT SNOW ACCUMULATIONS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. * SNOW ACCUMULATIONS: 6 TO 10 INCHES OF SNOW OVER MARIAS PASS. * WINDS: WEST WINDS 15 TO 25 MPH WITH GUSTS IN EXCESS OF 35 TO 40 MPH SHOULD PRODUCE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ006-220300- /O.CON.KMSO.WS.W.0003.110121T2300Z-110122T1600Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 1035 AM MST FRI JAN 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 AM MST SATURDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 AM MST SATURDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW...ALONG WITH BLOWING SNOW...IS LIKELY FRIDAY INTO SATURDAY MORNING OVER LOST TRAIL PASS AND LOLO PASS. LOW VISIBILITIES AND SIGNIFICANT SNOW ACCUMULATIONS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. ELEVATIONS ELSEWHERE BELOW 4000 FEET ARE EXPECTED TO RECEIVE LESSER AMOUNTS OF SNOW. * SNOW ACCUMULATIONS: 12 TO 15 INCHES OF SNOW IS POSSIBLE OVER LOST TRAIL PASS. 8 TO 12 INCHES POSSIBLE OVER LOLO PASS. * WINDS: WEST WINDS 15 TO 25 MPH SHOULD PRODUCE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ004-220300- /O.CON.KMSO.WW.Y.0012.110121T2100Z-110122T0900Z/ LOWER CLARK FORK REGION- 1035 AM MST FRI JAN 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 AM MST SATURDAY ABOVE 3500 FEET... A WINTER WEATHER ADVISORY ABOVE 3500 FEET REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 AM MST SATURDAY. * IMPACTS/TIMING: PERIODS OF SNOW...HEAVY AT TIMES...WILL IMPACT TRAVEL OVER LOOKOUT PASS AND ACROSS ADJACENT LOCATIONS THIS AFTERNOON AND EVENING. HAZARDOUS TRAVEL CONDITIONS ARE ANTICIPATED OVER EVARO HILL AS WELL. * SNOW ACCUMULATIONS: 5 TO 8 INCHES IN THE HIGHER ELEVATIONS WITH 3 TO 6 INCHES IN THE LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ043-220300- /O.CON.KMSO.WW.Y.0012.110122T0000Z-110122T1200Z/ POTOMAC/SEELEY LAKE REGION- 1035 AM MST FRI JAN 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST SATURDAY FOR HIGHWAY 83 SEELEY LAKE TO CONDON... A WINTER WEATHER ADVISORY FOR HIGHWAY 83 SEELEY LAKE TO CONDON REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST SATURDAY. * IMPACTS/TIMING: PERIODS OF SNOW...HEAVY AT TIMES...WILL IMPACT TRAVEL ALONG HIGHWAY 83 FROM SEELEY LAKE TO CONDON. ADJACENT LOCATIONS CAN EXPECT SIMILAR CONDITIONS. * SNOW ACCUMULATIONS: 4 TO 6 INCHES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
132 WWUS45 KMSO 220258 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 758 PM MST FRI JAN 21 2011 MTZ006-221100- /O.CON.KMSO.WS.W.0003.000000T0000Z-110122T1600Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 758 PM MST FRI JAN 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MST SATURDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MST SATURDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW...ALONG WITH BLOWING SNOW...IS LIKELY THROUGH SATURDAY MORNING OVER LOST TRAIL PASS AND LOLO PASS. LOW VISIBILITIES AND SIGNIFICANT SNOW ACCUMULATIONS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. ELEVATIONS ELSEWHERE BELOW 4000 FEET ARE EXPECTED TO RECEIVE LESSER AMOUNTS OF SNOW. * SNOW ACCUMULATIONS: 12 TO 15 INCHES OF SNOW IS POSSIBLE OVER LOST TRAIL PASS. 8 TO 12 INCHES POSSIBLE OVER LOLO PASS. * WINDS: WEST WINDS 15 TO 25 MPH SHOULD PRODUCE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ002-221100- /O.CON.KMSO.WS.W.0003.000000T0000Z-110122T1800Z/ WEST GLACIER REGION- 758 PM MST FRI JAN 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY FOR MARIAS PASS... A WINTER STORM WARNING FOR MARIAS PASS REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW...ALONG WITH BLOWING SNOW...IS LIKELY THROUGH SATURDAY MORNING OVER MARIAS. LOW VISIBILITIES AND SIGNIFICANT SNOW ACCUMULATIONS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. * SNOW ACCUMULATIONS: 6 TO 10 INCHES OF SNOW OVER MARIAS PASS. * WINDS: WEST WINDS 15 TO 25 MPH WITH GUSTS IN EXCESS OF 35 TO 40 MPH SHOULD PRODUCE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ004-220500- /O.EXT.KMSO.WW.Y.0012.000000T0000Z-110122T0500Z/ LOWER CLARK FORK REGION- 758 PM MST FRI JAN 21 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 PM MST THIS EVENING ABOVE 3500 FEET... THE WINTER WEATHER ADVISORY ABOVE 3500 FEET IS NOW IN EFFECT UNTIL 10 PM MST THIS EVENING. * IMPACTS/TIMING: PERIODS OF SNOW...MODERATE AT TIMES...WILL IMPACT TRAVEL OVER LOOKOUT PASS AND ACROSS ADJACENT LOCATIONS THIS EVENING. * SNOW ACCUMULATIONS: 5 TO 8 INCHES IN THE HIGHER ELEVATIONS WITH 1 TO 2 INCHES IN THE LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ043-221100- /O.CON.KMSO.WW.Y.0012.000000T0000Z-110122T1200Z/ POTOMAC/SEELEY LAKE REGION- 758 PM MST FRI JAN 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY FOR HIGHWAY 83 SEELEY LAKE TO CONDON... A WINTER WEATHER ADVISORY FOR HIGHWAY 83 SEELEY LAKE TO CONDON REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY. * IMPACTS/TIMING: A WINTRY MIX OF SNOW...RAIN AND FREEZING RAIN...WILL IMPACT TRAVEL ALONG HIGHWAY 83 FROM SEELEY LAKE TO CONDON TONIGHT. ADJACENT LOCATIONS CAN EXPECT SIMILAR CONDITIONS. * SNOW/ICE ACCUMULATIONS: 2 TO 3 INCHES OF SNOW...WITH PERIODS OF RAIN OR FREEZING RAIN THIS EVENING. LESS THAN A QUARTER OF AN INCH OF ICE EXPECTED. PRECIPTATION WILL CHANGE TO ALL SNOW AFTER MIDNIGHT TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
785 WWUS45 KMSO 220448 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 948 PM MST FRI JAN 21 2011 MTZ004-220600- /O.EXP.KMSO.WW.Y.0012.000000T0000Z-110122T0500Z/ LOWER CLARK FORK REGION- 948 PM MST FRI JAN 21 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 PM MST THIS EVENING ABOVE 3500 FEET... THE WINTER WEATHER ADVISORY ABOVE 3500 FEET WILL EXPIRE AT 10 PM MST THIS EVENING. LIGHT SNOW WILL CONTINUE OVERNIGHT WITH ONLY LIGHT ACCUMULATIONS EXPECTED. THIS SHOULD NOT POSE A THREAT TO TRAVEL OVER LOOKOUT PASS OR EVARO HILL. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...I-90 LOOKOUT PASS TO HAUGAN $$ MTZ006-221200- /O.CON.KMSO.WS.W.0003.000000T0000Z-110122T1600Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 948 PM MST FRI JAN 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MST SATURDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MST SATURDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW...ALONG WITH BLOWING SNOW...IS LIKELY THROUGH SATURDAY MORNING OVER LOST TRAIL PASS AND LOLO PASS. LOW VISIBILITIES AND SIGNIFICANT SNOW ACCUMULATIONS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. ELEVATIONS BELOW 4000 FEET ARE EXPECTED TO RECEIVE LESSER AMOUNTS OF SNOW. * SNOW ACCUMULATIONS: 12 TO 15 INCHES OF SNOW IS POSSIBLE OVER LOST TRAIL PASS...AND 8 TO 12 INCHES POSSIBLE OVER LOLO PASS BY SATURDAY MORNING. * WINDS: WEST WINDS 15 TO 25 MPH SHOULD PRODUCE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ002-221200- /O.CON.KMSO.WS.W.0003.000000T0000Z-110122T1800Z/ WEST GLACIER REGION- 948 PM MST FRI JAN 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY FOR MARIAS PASS... A WINTER STORM WARNING FOR MARIAS PASS REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW...ALONG WITH BLOWING SNOW...IS LIKELY THROUGH SATURDAY MORNING OVER MARIAS PASS. LOW VISIBILITIES AND SIGNIFICANT SNOW ACCUMULATIONS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. * SNOW ACCUMULATIONS: 6 TO 10 INCHES OF SNOW OVER MARIAS PASS BY SATURDAY MORNING. * WINDS: WEST WINDS 15 TO 25 MPH WITH GUSTS IN EXCESS OF 35 TO 40 MPH SHOULD PRODUCE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ043-221200- /O.CON.KMSO.WW.Y.0012.000000T0000Z-110122T1200Z/ POTOMAC/SEELEY LAKE REGION- 948 PM MST FRI JAN 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY FOR HIGHWAY 83 SEELEY LAKE TO CONDON... A WINTER WEATHER ADVISORY FOR HIGHWAY 83 SEELEY LAKE TO CONDON REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY. * IMPACTS/TIMING: A WINTRY MIX OF SNOW...RAIN AND FREEZING RAIN...WILL IMPACT TRAVEL ALONG HIGHWAY 83 FROM SEELEY LAKE TO CONDON OVERNIGHT. ADJACENT LOCATIONS CAN EXPECT SIMILAR CONDITIONS. * SNOW/ICE ACCUMULATIONS: 2 TO 3 INCHES OF SNOW...WITH PERIODS OF RAIN OR FREEZING RAIN LATE THIS EVENING. LESS THAN A QUARTER OF AN INCH OF ICE EXPECTED. PRECIPITATION WILL CHANGE TO ALL SNOW AFTER MIDNIGHT TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
757 WWUS45 KMSO 221054 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 354 AM MST SAT JAN 22 2011 MTZ002-221200- /O.EXT.KMSO.WS.W.0003.000000T0000Z-110122T1200Z/ WEST GLACIER REGION- 354 AM MST SAT JAN 22 2011 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING FOR MARIAS PASS... THE WINTER STORM WARNING FOR MARIAS PASS IS NOW IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW...ALONG WITH BLOWING SNOW...IS LIKELY THROUGH EARLY THIS MORNING OVER MARIAS PASS. LOW VISIBILITIES AND SIGNIFICANT SNOW ACCUMULATIONS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. * TOTAL SNOW ACCUMULATIONS: 6 TO 10 INCHES OF SNOW OVER MARIAS PASS. * WINDS: WEST WINDS 15 TO 25 MPH WITH GUSTS IN EXCESS OF 35 TO 40 MPH SHOULD PRODUCE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ006-221600- /O.CON.KMSO.WS.W.0003.000000T0000Z-110122T1600Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 354 AM MST SAT JAN 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW...ALONG WITH BLOWING SNOW...IS LIKELY THROUGH THIS MORNING OVER LOST TRAIL PASS AND LOLO PASS. LOW VISIBILITIES AND SIGNIFICANT SNOW ACCUMULATIONS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. ELEVATIONS BELOW 4000 FEET ARE EXPECTED TO RECEIVE LESSER AMOUNTS OF SNOW. * TOTAL SNOW ACCUMULATIONS: 12 TO 15 INCHES OF SNOW IS POSSIBLE OVER LOST TRAIL PASS...AND 8 TO 12 INCHES POSSIBLE OVER LOLO PASS. * WINDS: WEST WINDS 15 TO 25 MPH SHOULD PRODUCE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ043-221200- /O.CON.KMSO.WW.Y.0012.000000T0000Z-110122T1200Z/ POTOMAC/SEELEY LAKE REGION- 354 AM MST SAT JAN 22 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING FOR HIGHWAY 83 SEELEY LAKE TO CONDON... A WINTER WEATHER ADVISORY FOR HIGHWAY 83 SEELEY LAKE TO CONDON REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * IMPACTS/TIMING: SNOW WILL IMPACT TRAVEL ALONG HIGHWAY 83 FROM SEELEY LAKE TO CONDON THROUGH EARLY THIS MORNING. ADJACENT LOCATIONS CAN EXPECT SIMILAR CONDITIONS. * TOTAL SNOW ACCUMULATIONS: 2 TO 3 INCHES OF SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
474 WWUS45 KMSO 221130 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 430 AM MST SAT JAN 22 2011 MTZ002-221230- /O.EXP.KMSO.WS.W.0003.000000T0000Z-110122T1200Z/ WEST GLACIER REGION- 430 AM MST SAT JAN 22 2011 ...WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING FOR MARIAS PASS... THE WINTER STORM WARNING FOR MARIAS PASS WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. $$ MTZ043-221230- /O.EXP.KMSO.WW.Y.0012.000000T0000Z-110122T1200Z/ POTOMAC/SEELEY LAKE REGION- 430 AM MST SAT JAN 22 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING FOR HIGHWAY 83 SEELEY LAKE TO CONDON... THE WINTER WEATHER ADVISORY FOR HIGHWAY 83 SEELEY LAKE TO CONDON WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. $$ MTZ006-221600- /O.CON.KMSO.WS.W.0003.000000T0000Z-110122T1600Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 430 AM MST SAT JAN 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW...ALONG WITH BLOWING SNOW...IS LIKELY THROUGH THIS MORNING OVER LOST TRAIL PASS AND LOLO PASS. LOW VISIBILITIES AND SIGNIFICANT SNOW ACCUMULATIONS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. ELEVATIONS BELOW 4000 FEET ARE EXPECTED TO RECEIVE LESSER AMOUNTS OF SNOW. * TOTAL SNOW ACCUMULATIONS: 12 TO 15 INCHES OF SNOW IS POSSIBLE OVER LOST TRAIL PASS...AND 8 TO 12 INCHES POSSIBLE OVER LOLO PASS. * WINDS: WEST WINDS 15 TO 25 MPH SHOULD PRODUCE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$
683 WWUS45 KMSO 221552 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 852 AM MST SAT JAN 22 2011 MTZ006-221700- /O.CAN.KMSO.WS.W.0003.000000T0000Z-110122T1600Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 852 AM MST SAT JAN 22 2011 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. HEAVY MOUNTAIN SNOW HAS DIMINISHED ACROSS WESTERN MONTANA AND EAST CENTRAL IDAHO. THUS THE WINTER STORM WARNING HAS BEEN CANCELLED. SNOW SHOWERS ARE EXPECTED TO CONTINUE TODAY WITH AN ADDITIONAL 1 TO 3 INCHES OF SNOW EXPECTED THROUGH THIS AFTERNOON. $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 21, 3:29 AM MST | Winter Weather Advisory | MSO | Granite, Lake, Mineral, Missoula, Powell, Sanders | 26 hr |
Nearby
Winter Storm Warnings in Montana, 2011Every winter storm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.