Alert archive / Montana / Snow Advisories in 2007
Snow Advisory 29, NWS Missoula, MT
NWS Missoula, MT issued this snow advisory at Sep 28, 2007, 4:00 AM MDT for 8 counties in Montana; Clearwater County, Lemhi County, Idaho. It took effect at Sep 28, 2007, 10:35 AM MDT. It was in force for 25 hr.
The area
The counties it named.
The facts
- Issued
- Sep 28, 2007, 4:00 AM MDT (10:00 UTC)
- In effect from
- Sep 28, 2007, 10:35 AM MDT
- Expired
- Sep 29, 2007, 11:56 AM MDT
- In force
- 25 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Lemhi County, ID, Deer Lodge County, MT, Flathead County, MT, Granite County, MT, Lake County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 52 km from the middle of the area, began a volume at 09:58 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 00:00Z, 10.0 hours before the alert went out and 233 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
- 2785 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS45 KMSO 281000 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 400 AM MDT FRI SEP 28 2007 IDZ006-281800- /O.UPG.KMSO.WS.A.0013.070928T2100Z-070929T1200Z/ /O.NEW.KMSO.HS.W.0014.070929T0000Z-070929T1200Z/ SOUTHERN CLEARWATER MOUNTAINS- 300 AM PDT FRI SEP 28 2007 ...HEAVY SNOW WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM PDT SATURDAY FOR THE SOUTHERN CLEARWATERS ABOVE 5000 FEET... ...WINTER STORM WATCH NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A HEAVY SNOW WARNING ABOVE 5000 FEET...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM PDT SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BEGIN TO MOVE THROUGH THE REGION THIS AFTERNOON. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP WHILE SNOW LEVELS LOWER TO AROUND 5000 FEET LATE THIS AFTERNOON AND THIS EVENING. SNOWFALL ACCUMULATIONS OF 4 TO 6 INCHES WITH LOCAL AMOUNTS UP TO 8 INCHES ARE EXPECTED. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. $$ MTZ006-281800- /O.NEW.KMSO.SN.Y.0029.070929T0300Z-070929T1500Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 400 AM MDT FRI SEP 28 2007 ...SNOW ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 AM MDT SATURDAY FOR THE BITTERROOT SAPPHIRE MOUNTAINS ABOVE 5000 FEET... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY ABOVE 5000 FEET...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM MDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BEGIN TO MOVE THROUGH THE REGION THIS AFTERNOON. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP. SNOW LEVELS LOWER TO AROUND 5000 FEET THIS EVENING. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES. ARE EXPECTED. AREAS AFFECTED INCLUDE LOST TRAIL PASS...LOLO PASS...AND SKALKAHO PASS. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ007-281800- /O.NEW.KMSO.SN.Y.0029.070929T0600Z-070929T1800Z/ BUTTE/BLACKFOOT REGION- 400 AM MDT FRI SEP 28 2007 ...SNOW ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY FOR THE BUTTE BLACKFOOT REGION ABOVE 5500 FEET... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY ABOVE 5500 FEET...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BEGIN TO MOVE THROUGH THE REGION THIS AFTERNOON. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP WITH SNOW LEVELS LOWERING TO AROUND 5500 FEET AFTER MIDNIGHT. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES. AREAS AFFECTED INCLUDE HOMESTAKE PASS AND GEORGETOWN LAKE. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
7 follow-up statements
000 WWUS45 KMSO 281635 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1035 AM MDT FRI SEP 28 2007 IDZ006-282100- /O.CON.KMSO.HS.W.0014.070929T0000Z-070929T1200Z/ SOUTHERN CLEARWATER MOUNTAINS- 935 AM PDT FRI SEP 28 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM PDT SATURDAY ABOVE 5000 FEET... A HEAVY SNOW WARNING ABOVE 5000 FEET REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM PDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BEGIN TO MOVE THROUGH THE REGION THIS AFTERNOON. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP AS SNOW LEVELS LOWER TO AROUND 5000 FEET BY LATE THIS AFTERNOON AND THIS EVENING. SNOWFALL ACCUMULATIONS OF 4 TO 6 INCHES WITH LOCAL AMOUNTS UP TO 8 INCHES ARE EXPECTED. LOLO PASS AND THE CITY OF DIXIE WILL BE AMONG THE AREAS MOST IMPACTED BY THIS EVENT. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. $$ IDZ005-009-010-282100- /O.EXB.KMSO.SN.Y.0029.070929T0000Z-070929T1200Z/ NORTHERN CLEARWATER MOUNTAINS-WESTERN LEMHI COUNTY- EASTERN LEMHI COUNTY- 1035 AM MDT FRI SEP 28 2007 /935 AM PDT FRI SEP 28 2007/ ...SNOW ADVISORY IN EFFECT FROM 6 PM MDT /5 PM PDT/ THIS EVENING TO 6 AM MDT /5 AM PDT/ SATURDAY ABOVE 5000 FEET... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY ABOVE 5000 FEET...WHICH IS IN EFFECT FROM 6 PM MDT /5 PM PDT/ THIS EVENING TO 6 AM MDT /5 AM PDT/ SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BEGIN TO MOVE THROUGH THE REGION THIS AFTERNOON. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP AS SNOW LEVELS LOWER TO AROUND 5000 FEET BY LATE THIS AFTERNOON AND EVENING. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 6 INCHES ARE EXPECTED. AREAS IMPACTED BY THIS EVENT WILL BE LOST TRAIL PASS...LEADORE AND THE SURROUNDING MOUNTAINS. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ002-043-282100- /O.EXA.KMSO.SN.Y.0029.070929T0600Z-070929T1800Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 1035 AM MDT FRI SEP 28 2007 ...SNOW ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY ABOVE 5000 FEET... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY ABOVE 5000 FEET...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BEGIN TO MOVE THROUGH THE REGION THIS AFTERNOON. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP. SNOW LEVELS WILL LOWER TO AROUND 5000 FEET AFTER MIDNIGHT. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 6 INCHES ARE EXPECTED. US HIGHWAY 2 HEADING EAST TO MARIAS PASS...GLACIER NATIONAL PARK AND THE BOB MARSHALL WILDERNESS WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ006-282100- /O.CON.KMSO.SN.Y.0029.070929T0300Z-070929T1500Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 1035 AM MDT FRI SEP 28 2007 ...SNOW ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM MDT SATURDAY ABOVE 5000 FEET... A SNOW ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM MDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BEGIN TO MOVE THROUGH THE REGION THIS AFTERNOON. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP. SNOW LEVELS WILL LOWER TO AROUND 5000 FEET BY THIS EVENING. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 6 INCHES ARE EXPECTED. LOST TRAIL PASS...LOLO PASS...AND SKALKAHO PASS WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ007-282100- /O.CON.KMSO.SN.Y.0029.070929T0600Z-070929T1800Z/ BUTTE/BLACKFOOT REGION- 1035 AM MDT FRI SEP 28 2007 ...SNOW ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY ABOVE 5500 FEET... A SNOW ADVISORY ABOVE 5500 FEET REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BEGIN TO MOVE THROUGH THE REGION THIS AFTERNOON. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP. SNOW LEVELS WILL LOWER TO AROUND 5500 FEET AFTER MIDNIGHT. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 6 INCHES ARE EXPECTED. BUTTE AND ANACONDA CAN EXPECT UP TO 1 INCH BY LATE SATURDAY MORNING. MCDONALD PASS...HOMESTAKE PASS AND GEORGETOWN LAKE WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 282052 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 252 PM MDT FRI SEP 28 2007 MTZ006-290300- /O.UPG.KMSO.SN.Y.0029.070929T0300Z-070929T1500Z/ /O.EXB.KMSO.HS.W.0014.070929T0300Z-070929T1500Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 252 PM MDT FRI SEP 28 2007 ...HEAVY SNOW WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM MDT SATURDAY ABOVE 5000 FEET... ...SNOW ADVISORY NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A HEAVY SNOW WARNING ABOVE 5000 FEET...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM MDT SATURDAY. THE SNOW ADVISORY IS NO LONGER IN EFFECT. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL CONTINUE TO MOVE THROUGH THE REGION THIS EVENING AND OVERNIGHT. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP WITH SNOW LEVELS LOWERING TO AROUND 5000 FEET THIS EVENING. SNOWFALL ACCUMULATIONS OF 4 TO 6 INCHES WITH LOCAL AMOUNTS UP TO 8 INCHES ARE EXPECTED BY SATURDAY MORNING. LOST TRAIL PASS...LOLO PASS...AND SKALKAHO PASS WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ006-290300- /O.CON.KMSO.HS.W.0014.070929T0000Z-070929T1200Z/ SOUTHERN CLEARWATER MOUNTAINS- 152 PM PDT FRI SEP 28 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM PDT SATURDAY ABOVE 5000 FEET... A HEAVY SNOW WARNING ABOVE 5000 FEET REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM PDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL CONTINUE TO MOVE THROUGH THE REGION THIS EVENING AND OVERNIGHT. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP AS SNOW LEVELS LOWER TO AROUND 5000 FEET THIS EVENING. SNOWFALL ACCUMULATIONS OF 4 TO 6 INCHES WITH LOCAL AMOUNTS UP TO 8 INCHES ARE EXPECTED. LOLO PASS AND THE CITY OF DIXIE WILL BE AMONG THE AREAS MOST IMPACTED BY THIS EVENT. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST WHICH WILL MAKE TRAVEL DANGEROUS. $$ IDZ005-009-010-290500- /O.CON.KMSO.SN.Y.0029.070929T0000Z-070929T1200Z/ NORTHERN CLEARWATER MOUNTAINS-WESTERN LEMHI COUNTY- EASTERN LEMHI COUNTY- 252 PM MDT FRI SEP 28 2007 /152 PM PDT FRI SEP 28 2007/ ...SNOW ADVISORY REMAINS IN EFFECT FROM 6 PM MDT /5 PM PDT/ THIS EVENING TO 6 AM MDT /5 AM PDT/ SATURDAY ABOVE 5000 FEET... A SNOW ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT FROM 6 PM MDT /5 PM PDT/ THIS EVENING TO 6 AM MDT /5 AM PDT/ SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL CONTINUE TO MOVE THROUGH THE REGION THIS EVENING AND OVERNIGHT. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP AS SNOW LEVELS LOWER TO AROUND 5000 FEET THIS EVENING. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 6 INCHES ARE EXPECTED. AREAS IMPACTED BY THIS EVENT WILL BE LOST TRAIL PASS...LEADORE AND THE SURROUNDING MOUNTAINS. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ002-043-290300- /O.CON.KMSO.SN.Y.0029.070929T0600Z-070929T1800Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 252 PM MDT FRI SEP 28 2007 ...SNOW ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY ABOVE 5000 FEET... A SNOW ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BEGIN TO MOVE THROUGH THE REGION THIS EVENING AND OVERNIGHT. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP. SNOW LEVELS WILL LOWER TO AROUND 5000 FEET AFTER MIDNIGHT. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 6 INCHES ARE EXPECTED. US HIGHWAY 2 HEADING EAST TO MARIAS PASS...GLACIER NATIONAL PARK AND THE BOB MARSHALL WILDERNESS WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ007-290300- /O.CON.KMSO.SN.Y.0029.070929T0600Z-070929T1800Z/ BUTTE/BLACKFOOT REGION- 252 PM MDT FRI SEP 28 2007 ...SNOW ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY ABOVE 5500 FEET... A SNOW ADVISORY ABOVE 5500 FEET REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BEGIN TO MOVE THROUGH THE REGION THIS EVENING AND OVERNIGHT. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP. SNOW LEVELS WILL LOWER TO AROUND 5500 FEET AFTER MIDNIGHT. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 7 INCHES IN GEORGETOWN LAKE AND THE HIGHER TERRAIN ARE EXPECTED. BUTTE AND ANACONDA CAN EXPECT UP TO 1 INCH BY LATE SATURDAY MORNING. MCDONALD PASS...HOMESTAKE PASS AND GEORGETOWN LAKE WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 290249 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 849 PM MDT FRI SEP 28 2007 IDZ006-291200- /O.CON.KMSO.HS.W.0014.000000T0000Z-070929T1200Z/ SOUTHERN CLEARWATER MOUNTAINS- 749 PM PDT FRI SEP 28 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY ABOVE 5000 FEET... A HEAVY SNOW WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL CONTINUE TO MOVE THROUGH THE REGION TONIGHT. WIDESPREAD PRECIPITATION WILL OCCUR WITH THE SNOW LEVEL AROUND 5000 FEET. SNOWFALL ACCUMULATIONS OF 4 TO 6 INCHES WITH LOCAL AMOUNTS UP TO 8 INCHES ARE EXPECTED. LOLO PASS AND DIXIE WILL BE AMONG THE AREAS MOST IMPACTED BY THIS EVENT. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST WHICH WILL MAKE TRAVEL DANGEROUS. $$ MTZ006-291200- /O.CON.KMSO.HS.W.0014.070929T0300Z-070929T1500Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 849 PM MDT FRI SEP 28 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 9 AM MDT SATURDAY ABOVE 5000 FEET... A HEAVY SNOW WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 9 AM MDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM WILL CONTINUE TO MOVE THROUGH THE REGION TONIGHT. WIDESPREAD PRECIPITATION IS EXPECTED WITH THE SNOW LEVEL LOWERING TO AROUND 5000 FEET BY MIDNIGHT. SNOWFALL ACCUMULATIONS OF 4 TO 6 INCHES WITH LOCAL AMOUNTS UP TO 8 INCHES ARE EXPECTED BY SATURDAY MORNING. LOST TRAIL PASS...LOLO PASS...AND SKALKAHO PASS WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ005-009-010-291200- /O.CON.KMSO.SN.Y.0029.000000T0000Z-070929T1200Z/ NORTHERN CLEARWATER MOUNTAINS-WESTERN LEMHI COUNTY- EASTERN LEMHI COUNTY- 849 PM MDT FRI SEP 28 2007 /749 PM PDT FRI SEP 28 2007/ ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT /5 AM PDT/ SATURDAY ABOVE 5000 FEET... A SNOW ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 6 AM MDT /5 AM PDT/ SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM WILL CONTINUE TO MOVE THROUGH THE REGION TONIGHT. WIDESPREAD PRECIPITATION IS EXPECTED WITH THE SNOW LEVEL LOWERING TO AROUND 5000 FEET. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 6 INCHES ARE EXPECTED. AREAS IMPACTED BY THIS EVENT WILL BE LOST TRAIL PASS AND THE SURROUNDING MOUNTAINS. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ002-043-291200- /O.CON.KMSO.SN.Y.0029.070929T0600Z-070929T1800Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 849 PM MDT FRI SEP 28 2007 ...SNOW ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY ABOVE 5000 FEET... A SNOW ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL MOVE THROUGH THE REGION TONIGHT. WIDESPREAD PRECIPITATION HAS DEVELOPED. THE SNOW LEVEL WILL LOWER TO AROUND 5000 FEET AFTER MIDNIGHT. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 6 INCHES ARE EXPECTED. US HIGHWAY 2 HEADING EAST TO MARIAS PASS...GLACIER NATIONAL PARK AND THE BOB MARSHALL WILDERNESS WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ007-291200- /O.CON.KMSO.SN.Y.0029.070929T0600Z-070929T1800Z/ BUTTE/BLACKFOOT REGION- 849 PM MDT FRI SEP 28 2007 ...SNOW ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY ABOVE 5500 FEET... A SNOW ADVISORY ABOVE 5500 FEET REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY. A COOL AND MOIST LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL MOVE THROUGH THE REGION TONIGHT. WIDESPREAD PRECIPITATION IS EXPECTED TO DEVELOP. THE SNOW LEVEL WILL LOWER TO AROUND 5500 FEET AFTER MIDNIGHT. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 7 INCHES IN GEORGETOWN LAKE AND THE HIGHER TERRAIN ARE EXPECTED. BUTTE AND ANACONDA CAN EXPECT UP TO 1 INCH BY LATE SATURDAY MORNING. MCDONALD PASS...HOMESTAKE PASS AND GEORGETOWN LAKE WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 290945 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 345 AM MDT SAT SEP 29 2007 IDZ006-291045- /O.CAN.KMSO.HS.W.0014.000000T0000Z-070929T1200Z/ SOUTHERN CLEARWATER MOUNTAINS- 245 AM PDT SAT SEP 29 2007 ...HEAVY SNOW WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE HEAVY SNOW WARNING. SNOWFALL HAS TAPERED OFF OVER THE SOUTHERN CLEARWATER MOUNTAINS. SCATTERED SNOW SHOWERS ARE EXPETED THIS MORING WITH ADDITIONAL LIGHT ACCUMULATIONS POSSIBLE. $$ IDZ005-291045- /O.CAN.KMSO.SN.Y.0029.000000T0000Z-070929T1200Z/ NORTHERN CLEARWATER MOUNTAINS- 245 AM PDT SAT SEP 29 2007 ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW ADVISORY. SNOWFALL HAS TAPERED OFF IN THE NORTHERN CLEARWATER MOUNTAINS. SCATTERED SNOW SHOWERS ARE EXPETED THIS MORING WITH ADDITIONAL LIGHT ACCUMULATIONS POSSIBLE. $$ MTZ006-291500- /O.CON.KMSO.HS.W.0014.000000T0000Z-070929T1500Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 345 AM MDT SAT SEP 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING ABOVE 5000 FEET... A HEAVY SNOW WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING. A COOL AND MOIST LOW PRESSURE SYSTEM WILL CONTINUE TO MOVE THROUGH THE REGION THIS MORNING. WIDESPREAD PRECIPITATION IS EXPECTED WITH THE SNOW LEVELS LOWERING AROUND 5000 FEET. SNOWFALL ACCUMULATIONS OF 4 TO 6 INCHES WITH LOCAL AMOUNTS UP TO 8 INCHES ARE EXPECTED BY MID MORNING TODAY. LOST TRAIL PASS...LOLO PASS...AND SKALKAHO PASS WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ009-010-291800- /O.EXT.KMSO.SN.Y.0029.000000T0000Z-070929T1800Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 345 AM MDT SAT SEP 29 2007 ...SNOW ADVISORY NOW IN EFFECT UNTIL NOON MDT TODAY ABOVE 5000 FEET... THE SNOW ADVISORY ABOVE 5000 FEET IS NOW IN EFFECT UNTIL NOON MDT TODAY. WIDESPREAD PRECIPITATION IS EXPECTED TO CONTINUE WITH THE SNOW LEVEL LOWERING TO AROUND 5000 FEET. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 6 INCHES ARE EXPECTED. AREAS IMPACTED BY THIS EVENT WILL BE LOST TRAIL PASS AND THE SURROUNDING MOUNTAINS. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ002-043-291800- /O.CON.KMSO.SN.Y.0029.000000T0000Z-070929T1800Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 345 AM MDT SAT SEP 29 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY ABOVE 5000 FEET... A SNOW ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT UNTIL NOON MDT TODAY. PRECIPITATION WILL INCREASE EARLY THIS MORNING WITH SNOW LEVELS AROUND 5000 FEET. SNOWFALL ACCUMULATIONS OF 1 TO 3 INCHES WITH LOCAL AMOUNTS UP TO 6 INCHES ARE EXPECTED. US HIGHWAY 2 HEADING EAST TO MARIAS PASS...GLACIER NATIONAL PARK AND THE BOB MARSHALL WILDERNESS WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ007-291800- /O.CON.KMSO.SN.Y.0029.000000T0000Z-070929T1800Z/ BUTTE/BLACKFOOT REGION- 345 AM MDT SAT SEP 29 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY ABOVE 5500 FEET... A SNOW ADVISORY ABOVE 5500 FEET REMAINS IN EFFECT UNTIL NOON MDT TODAY. WIDESPREAD PRECIPITATION IS EXPECTED TO CONTINUE WITH THE SNOW LEVEL AROUND 5500 FEET THIS MORNING. SNOWFALL ACCUMULATIONS OF 2 TO 4 INCHES WITH LOCAL AMOUNTS UP TO 7 INCHES IN GEORGETOWN LAKE AND THE HIGHER TERRAIN ARE EXPECTED. MCDONALD PASS...HOMESTAKE PASS AND GEORGETOWN LAKE WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 291209 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 609 AM MDT SAT SEP 29 2007 MTZ006-291315- /O.CAN.KMSO.HS.W.0014.000000T0000Z-070929T1500Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 609 AM MDT SAT SEP 29 2007 ...HEAVY SNOW WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE HEAVY SNOW WARNING. WIDESPREAD SNOWFALL DIMINISHED. EXPECT SCATTERED SNOW SHOWERS THROUGH THE MORNING WITH LITTLE SNOW ACCUMULATION. $$ IDZ009-010-291315- /O.CAN.KMSO.SN.Y.0029.000000T0000Z-070929T1800Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 609 AM MDT SAT SEP 29 2007 ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW ADVISORY. WIDESPREAD SNOWFALL HAS DIMINISHED. EXPECT SCATTERED SNOW SHOWERS THROUGH THE MORNING WITH LITTLE SNOW ACCUMULATION. $$ MTZ002-043-291800- /O.CON.KMSO.SN.Y.0029.000000T0000Z-070929T1800Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 609 AM MDT SAT SEP 29 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY ABOVE 5000 FEET... A SNOW ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT UNTIL NOON MDT TODAY. PRECIPITATION WILL INCREASE EARLY THIS MORNING WITH SNOW LEVELS AROUND 5000 FEET. SNOWFALL ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED. US HIGHWAY 2 HEADING EAST TO MARIAS PASS...GLACIER NATIONAL PARK AND THE BOB MARSHALL WILDERNESS WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ007-291800- /O.CON.KMSO.SN.Y.0029.000000T0000Z-070929T1800Z/ BUTTE/BLACKFOOT REGION- 609 AM MDT SAT SEP 29 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY ABOVE 5500 FEET... A SNOW ADVISORY ABOVE 5500 FEET REMAINS IN EFFECT UNTIL NOON MDT TODAY. WIDESPREAD PRECIPITATION IS EXPECTED TO CONTINUE WITH THE SNOW LEVEL AROUND 5500 FEET THIS MORNING. SNOWFALL ACCUMULATIONS OF 1 TO 3 INCHES WITH LOCAL AMOUNTS TO 4 INCHES IN GEORGETOWN LAKE AND THE HIGHER TERRAIN ARE EXPECTED. MCDONALD PASS...HOMESTAKE PASS AND GEORGETOWN LAKE WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 291351 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 751 AM MDT SAT SEP 29 2007 MTZ002-291500- /O.CAN.KMSO.SN.Y.0029.000000T0000Z-070929T1800Z/ WEST GLACIER REGION- 751 AM MDT SAT SEP 29 2007 ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW ADVISORY. PRECIPITATION OVER THE WEST GLACIER REGION WILL REMAIN LIGHT EARLY THIS MORNING...THEN DIMINISH THROUGH THE DAY. $$ MTZ043-291800- /O.CON.KMSO.SN.Y.0029.000000T0000Z-070929T1800Z/ POTOMAC/SEELEY LAKE REGION- 751 AM MDT SAT SEP 29 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY ABOVE 5000 FEET... A SNOW ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT UNTIL NOON MDT TODAY. SNOWFALL ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED ABOVE 5000 FEET THROUGH LATE MORNING. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING IN THE MOUNTAINS. $$ MTZ007-291800- /O.CON.KMSO.SN.Y.0029.000000T0000Z-070929T1800Z/ BUTTE/BLACKFOOT REGION- 751 AM MDT SAT SEP 29 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY ABOVE 5500 FEET... A SNOW ADVISORY ABOVE 5500 FEET REMAINS IN EFFECT UNTIL NOON MDT TODAY. SNOWFALL ACCUMULATIONS OF 1 TO 3 INCHES ABOVE 5500 FEET WITH LOCAL AMOUNTS TO 4 INCHES IN GEORGETOWN LAKE AND THE HIGHER TERRAIN ARE EXPECTED. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 291756 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1156 AM MDT SAT SEP 29 2007 MTZ007-043-291900- /O.CAN.KMSO.SN.Y.0029.000000T0000Z-070929T1800Z/ BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION- 1156 AM MDT SAT SEP 29 2007 ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW ADVISORY. LIGHT SNOW WILL SLOWLY TAPER OFF ACROSS THE AREA THROUGH THE AFTERNOON. ADDITIONAL ACCUMULATIONS UP TO AN INCH ARE STILL POSSIBLE PARTICULARLY OVER THE PASSES. $$
What forecasters said that day
The local office's own words before this snow 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 snow advisory went out at Sep 28, 3:29 AM MDT, 31 minutes earlier.
Area forecast discussion, Sep 28, 3:29 AM MDT, 31 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
329 AM MDT FRI SEP 28 2007
.DISCUSSION...A STRONG LOW PRESSURE SYSTEM AND ASSOCIATED COLD
FRONT WILL APPROACH THE NORTHERN ROCKIES BY THIS AFTERNOON AND
EXIT SOUTHWEST MONTANA BY SATURDAY AFTERNOON. THE MAIN IMPACT
FROM THIS SYSTEM WILL BE COOLER AIR MASS...WIDESPREAD
PRECIPITATION...INCLUDING ACCUMULATING MOUNTAIN SNOWFALL...AND
INCREASING WEST WINDS. SNOW LEVELS WILL QUICKLY LOWER TO
5000-5500 FEET AREA WIDE THIS EVENING AND OVERNIGHT. THE BEST
DYNAMICS AND FRONTOGENISIS WILL BE FOCUSED IN CENTRAL IDAHO...WEST
CENTRAL MONTANA AND SOUTHWEST MONTANA LATE THIS AFTERNOON THROUGH
LATE SATURDAY MORNING WHERE THE GREATEST MOUNTAIN SNOW
ACCUMULATIONS OF SNOW ARE EXPECTED. WINTER WEATHER HIGHLIGHTS HAVE
BEEN ISSUED FOR THESE AREAS. SEE GTFWSWMSO FOR DETAILS. THIS FRONT
WILL MOVE THROUGH THE REGION FAIRLY QUICK SO THE MAJORITY OF
PRECIPITATION WILL OCCUR IN A 12 HOUR PERIOD THROUGH LATE SATURDAY
MORNING. 4-6 INCHES OF SNOW WITH LOCALLY HIGHER AMOUNTS ARE
POSSIBLE IN CENTRAL IDAHO WITH LESS AMOUNTS IN WEST CENTRAL AND
SOUTHWEST MONTANA. SNOWFALL IS EXPECTED OVER MOUNTAIN PASSES.
MOUNTAIN SNOW IS ALSO EXPECTED ALONG THE CONTINENTAL DIVIDE AND
GLACIER NP REGION AS OROGRAPHIC LIFT INCREASES. SNOW AMOUNTS AND
TIMING ARE SOMEWHAT UNCERTAIN AT THIS TIME...THUS NO HIGHLIGHTS
HAVE BEEN ISSUED YET.
RAIN AND MOUNTAIN SNOW SHOWERS WILL LINGER BEHIND THE FRONT
SATURDAY WITH TEMPERATURES 10-20 DEGREES COOLER. BREEZY WEST WINDS
WILL BEGIN TO SUBSIDE SATURDAY AFTERNOON.
A SHORTWAVE RIDGE WILL BUILD OVER THE AREA SATURDAY NIGHT AND WILL
PROVIDE A BRIEF PERIOD OF CLEARING. CLOUDS WILL INCREASE SUNDAY
AS ANOTHER STRONG SYSTEM APPROACHES THE COAST EN ROUTE TO WESTERN
MONTANA AND NORTH CENTRAL IDAHO. THE SYSTEM WILL MOVE ACROSS THE
REGION ON MONDAY BRINGING ANOTHER ROUND OF WIDESPREAD RAIN AND
MOUNTAIN SNOWFALL. RIGHT NOW IT APPEARS THAT SNOW LEVELS WILL BE
AROUND 6000 FEET IN MOST AREAS...SO PASSES COULD BE IMPACTED.
AFTER THIS SYSTEM EXITS...A VERY ACTIVE AND MOIST ZONAL FLOW
PATTERN WILL DEVELOP. WITH SNOW LEVELS REMAINING AROUND THE 6000
FOOT LEVEL...HIGHER ELEVATIONS SHOULD BEGIN TO PICK UP SOME MORE
EARLY SEASON SNOWFALL ACCUMULATIONS. GIVEN THE STRONG WESTERLY
FLOW...A FEW VALLEY LOCATIONS SHOULD EXPERIENCE SOME SHADOWING
EFFECTS.
&&
.AVIATION...A SURFACE COLD FRONT WILL PASS THROUGH THE AREA
BRINGING GUSTY WINDS AND WIDESPREAD PRECIPITATION TO MUCH OF THE
AREA. PLEASE SEE APPROPRIATE TERMINAL FORECASTS FOR DETAILS.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...SNOW ADVISORY FROM MIDNIGHT TONIGHT TO 12 PM MDT SATURDAY ABOVE
5500 FEET FOR BUTTE/BLACKFOOT REGION.
SNOW ADVISORY FROM 9 PM THIS EVENING TO 9 AM MDT SATURDAY ABOVE
5000 FEET FOR BITTERROOT/SAPPHIRE MOUNTAINS.
ID...HEAVY SNOW WARNING FROM 5 PM THIS AFTERNOON TO 5 AM PDT SATURDAY
ABOVE 5000 FEET FOR SOUTHERN CLEARWATER MOUNTAINS.
&&
SHORT TERM...RPN
LONG TERM....RPN
AVIATION...RPNHazardous weather outlook, Sep 28, 4:00 AM MDT, 0 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MISSOULA MT 400 AM MDT FRI SEP 28 2007 MTZ001-002-004-043-282200- KOOTENAI/CABINET REGION-WEST GLACIER REGION- LOWER CLARK FORK REGION-POTOMAC/SEELEY LAKE REGION- 400 AM MDT FRI SEP 28 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST MONTANA AND WEST CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT HIGHER ELEVATIONS MAY SEE SNOW ACCUMULATIONS UP TO 2 INCHES AS A PACIFIC STORM SYSTEM MOVES ACROSS THE AREA THIS AFTERNOON AND TONIGHT. THIS INCLUDES AREAS SUCH AS LOOKOUT PASS...LOGAN PASS AND MARIAS PASS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ANOTHER MOIST WEATHER SYSTEM WILL MOVE ACROSS THE AREA MONDAY BRINGING THE POTENTIAL FOR MORE SNOW TO THE HIGHER ELEVATIONS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 4:00 AM MDT | Heavy Snow Warning | MSO | Granite, Missoula, Ravalli | 26 hr |
Nearby
Snow Advisories in Montana, 2007Snow Advisories in Idaho, 2007Every snow advisory in 2007
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.