Alert archive / Montana / Winter Storm Warnings in 2007
Winter Storm Warning 3, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Jan 6, 2007, 1:31 PM PST for Clearwater County, Idaho County, Idaho; 9 counties in Montana. It took effect at Jan 7, 2007, 4:00 AM PST. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 6, 2007, 1:31 PM PST (21:31 UTC)
- In effect from
- Jan 7, 2007, 4:00 AM PST
- Expired
- Jan 7, 2007, 9:34 PM PST
- In force
- 18 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Idaho County, ID, Flathead County, MT, Granite County, MT, Lake County, MT, Lincoln County, MT, Mineral County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 38 km from the middle of the area, began a volume at 21:32 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, 9.5 hours before the alert went out and 159 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
- 693 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 337 m²/s²
- 0-3 km storm-relative helicity
- 345 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 062131 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 231 PM MST SAT JAN 6 2007 .ANOTHER FAST-MOVING PACIFIC WEATHER SYSTEM WILL APPROACH THE REGION TONIGHT. THIS SYSTEM WILL PROVIDE SIGNIFICANT MOISTURE IN THE FORM OF SNOW TO MOST AREAS SUNDAY. HEAVY SNOW CAN BE EXPECTED IN THE MOUNTAINS OF WESTERN MONTANA AND THE PANHANDLE OF IDAHO. IN ADDITION TO SNOW...THE COMBINATION OF STRONG WINDS ALOFT AND A TIGHTENING SURFACE PRESSURE GRADIENT WILL PROVIDE STRONG SOUTHWEST WINDS TO MOST AREAS. STRONG WINDS WILL CAUSE BLOWING AND DRIFTING OF NEWLY FALLEN SNOW...ESPECIALLY IN HIGHER TERRAIN. SOME SNOW SHADOWING OFF THE MOUNTAINS WILL REDUCE SNOWFALL AMOUNTS IN THE VALLEYS OF WEST-CENTRAL MONTANA. BANDING OF SNOW SHOWERS IS EXPECTED LATER SUNDAY AFTERNOON WITH SHOWERS TAPERING OFF TO SCATTERED COVERAGE BY SUNDAY NIGHT. MTZ001-004-070600- /O.NEW.KMSO.WS.W.0003.070107T1200Z-070108T0000Z/ KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- 231 PM MST SAT JAN 6 2007 ...WINTER STORM WARNING IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY. NEW SNOW ACCUMULATIONS OF 4 TO 9 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED SUNDAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. SOME VALLEY LOCATIONS IN THE KOOTENAI REGION WILL BE SHELTERED SOMEWHAT FROM STRONGER WINDS...WHILE THE MOUNTAINS WILL FEEL THE FULL EFFECT. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IDZ005-006-070600- /O.NEW.KMSO.WS.W.0003.070107T1200Z-070108T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 131 PM PST SAT JAN 6 2007 ...WINTER STORM WARNING IN EFFECT FROM 4 AM TO 4 PM PST SUNDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 4 AM TO 4 PM PST SUNDAY. NEW SNOW ACCUMULATIONS OF 5 TO 10 INCHES AND STRONG SOUTHWEST WINDS 15 TO 25 MPH WITH LOCAL GUSTS TO 35 MPH ARE EXPECTED SUNDAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ006-070600- /O.NEW.KMSO.WS.W.0003.070107T1200Z-070108T0000Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 231 PM MST SAT JAN 6 2007 ...WINTER STORM WARNING IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY. NEW SNOW ACCUMULATIONS OF 4 TO 9 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED SUNDAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ002-043-070600- /O.NEW.KMSO.SB.Y.0003.070107T1200Z-070108T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 231 PM MST SAT JAN 6 2007 ...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW AND BLOWING SNOW ADVISORY...WHICH IS IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY. NEW SNOW ACCUMULATIONS OF 2 TO 5 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED SUNDAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. SOME OF THE HIGHER TERRAIN WILL SEE SNOW AMOUNTS UP TO 10 INCHES. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$
6 follow-up statements
000 WWUS45 KMSO 070529 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1029 PM MST SAT JAN 6 2007 .ANOTHER FAST-MOVING PACIFIC WEATHER SYSTEM WILL APPROACH THE REGION LATE TONIGHT. THIS SYSTEM WILL PROVIDE SIGNIFICANT MOISTURE IN THE FORM OF SNOW TO MOST AREAS SUNDAY. HEAVY SNOW CAN BE EXPECTED IN THE MOUNTAINS OF WESTERN MONTANA AND THE PANHANDLE OF IDAHO. IN ADDITION TO SNOW...THE COMBINATION OF STRONG WINDS ALOFT AND A TIGHTENING SURFACE PRESSURE GRADIENT WILL PROVIDE STRONG SOUTHWEST WINDS TO MOST AREAS. STRONG WINDS WILL CAUSE BLOWING AND DRIFTING OF NEWLY FALLEN SNOW...ESPECIALLY IN HIGHER TERRAIN. SOME SNOW SHADOWING OFF THE MOUNTAINS WILL REDUCE SNOWFALL AMOUNTS IN THE VALLEYS OF WEST-CENTRAL MONTANA. BANDING OF SNOW SHOWERS IS EXPECTED LATER SUNDAY AFTERNOON WITH SHOWERS TAPERING OFF TO SCATTERED COVERAGE BY SUNDAY NIGHT. MTZ001-004-071300- /O.CON.KMSO.WS.W.0003.070107T1200Z-070108T0000Z/ KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- 1029 PM MST SAT JAN 6 2007 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY... NEW SNOW ACCUMULATIONS OF 4 TO 9 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED SUNDAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. SOME VALLEY LOCATIONS IN THE KOOTENAI REGION WILL BE SHELTERED SOMEWHAT FROM STRONGER WINDS...WHILE THE MOUNTAINS WILL FEEL THE FULL EFFECT. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IDZ005-006-071300- /O.CON.KMSO.WS.W.0003.070107T1200Z-070108T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 929 PM PST SAT JAN 6 2007 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 4 PM PST SUNDAY... NEW SNOW ACCUMULATIONS OF 5 TO 10 INCHES AND STRONG SOUTHWEST WINDS 15 TO 25 MPH WITH LOCAL GUSTS TO 35 MPH ARE EXPECTED SUNDAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ006-071300- /O.CON.KMSO.WS.W.0003.070107T1200Z-070108T0000Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 1029 PM MST SAT JAN 6 2007 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY... NEW SNOW ACCUMULATIONS OF 4 TO 9 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED SUNDAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ002-043-071300- /O.CON.KMSO.SB.Y.0003.070107T1200Z-070108T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 1029 PM MST SAT JAN 6 2007 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY... NEW SNOW ACCUMULATIONS OF 2 TO 5 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED SUNDAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. SOME OF THE HIGHER TERRAIN WILL SEE SNOW AMOUNTS UP TO 10 INCHES. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$
000 WWUS45 KMSO 071113 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 413 AM MST SUN JAN 7 2007 .A FAST MOVING WEATHER SYSTEM WILL MOVE ACROSS THE NORTHERN ROCKIES TODAY PRODUCING SIGNIFICANT SNOW...ESPECIALLY IN THE MOUNTAINS. IN ADDITION TO SNOW...THE COMBINATION OF STRONG WINDS ALOFT AND A TIGHTENING SURFACE PRESSURE GRADIENT WILL PROVIDE STRONG SOUTHWEST WINDS TO MOST AREAS. STRONG WINDS WILL CAUSE BLOWING AND DRIFTING OF NEWLY FALLEN SNOW...ESPECIALLY IN HIGHER TERRAIN. SOME SNOW SHADOWING OFF THE MOUNTAINS WILL REDUCE SNOWFALL AMOUNTS IN THE VALLEYS OF WEST-CENTRAL MONTANA. BANDING OF SNOW SHOWERS IS EXPECTED LATER THIS AFTERNOON AND EVENING WITH SHOWERS TAPERING OFF TO SCATTERED COVERAGE OVERNIGHT. MTZ006-072200- /O.EXT.KMSO.WS.W.0003.070107T1400Z-070108T0000Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 413 AM MST SUN JAN 7 2007 ...WINTER STORM WARNING NOW IN EFFECT FROM 7 AM THIS MORNING TO 5 PM MST THIS AFTERNOON... THE WINTER STORM WARNING IS NOW IN EFFECT FROM 7 AM THIS MORNING TO 5 PM MST THIS AFTERNOON. NEW SNOW ACCUMULATIONS OF 4 TO 9 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED TODAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT WIND AND SNOW ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ001-004-072200- /O.CON.KMSO.WS.W.0003.070107T1200Z-070108T0000Z/ KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- 413 AM MST SUN JAN 7 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. NEW SNOW ACCUMULATIONS OF 4 TO 9 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED TODAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. SOME VALLEY LOCATIONS IN THE KOOTENAI REGION WILL BE SHELTERED SOMEWHAT FROM STRONGER WINDS...WHILE THE MOUNTAINS WILL FEEL THE FULL EFFECT. A WINTER STORM WARNING MEANS SIGNIFICANT WIND AND SNOW ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IDZ005-006-072200- /O.CON.KMSO.WS.W.0003.070107T1200Z-070108T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 313 AM PST SUN JAN 7 2007 ...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. NEW SNOW ACCUMULATIONS OF 5 TO 10 INCHES AND STRONG SOUTHWEST WINDS 15 TO 25 MPH WITH LOCAL GUSTS TO 35 MPH ARE EXPECTED TODAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT SNOW AND WIND ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ002-043-072200- /O.EXT.KMSO.SB.Y.0003.070107T1400Z-070108T0600Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 413 AM MST SUN JAN 7 2007 ...SNOW AND BLOWING SNOW ADVISORY NOW IN EFFECT FROM 7 AM THIS MORNING TO 11 PM MST THIS EVENING... THE SNOW AND BLOWING SNOW ADVISORY IS NOW IN EFFECT FROM 7 AM THIS MORNING TO 11 PM MST THIS EVENING. NEW SNOW ACCUMULATIONS OF 3 TO 6 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED THROUGH THIS EVENING. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. SOME OF THE HIGHER TERRAIN WILL SEE SNOW AMOUNTS UP TO 10 INCHES. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$
000 WWUS45 KMSO 071617 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 917 AM MST SUN JAN 7 2007 .A FAST MOVING WEATHER SYSTEM WILL MOVE ACROSS THE NORTHERN ROCKIES TODAY PRODUCING SIGNIFICANT SNOW...ESPECIALLY IN THE MOUNTAINS. IN ADDITION TO SNOW...THE COMBINATION OF STRONG WINDS ALOFT AND A TIGHTENING SURFACE PRESSURE GRADIENT WILL PROVIDE STRONG SOUTHWEST WINDS TO MOST AREAS. STRONG WINDS WILL CAUSE BLOWING AND DRIFTING OF NEWLY FALLEN SNOW...ESPECIALLY IN HIGHER TERRAIN. SOME SNOW SHADOWING OFF THE MOUNTAINS WILL REDUCE SNOWFALL AMOUNTS IN THE VALLEYS OF WEST-CENTRAL MONTANA. BANDING OF SNOW SHOWERS IS EXPECTED LATER THIS AFTERNOON AND EVENING WITH SHOWERS TAPERING OFF TO SCATTERED COVERAGE OVERNIGHT. MTZ002-043-072300- /O.UPG.KMSO.SB.Y.0003.000000T0000Z-070108T0600Z/ /O.EXB.KMSO.WS.W.0003.000000T0000Z-070108T0600Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 917 AM MST SUN JAN 7 2007 ...WINTER STORM WARNING IN EFFECT UNTIL 11 PM MST THIS EVENING... ...SNOW AND BLOWING SNOW ADVISORY NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 11 PM MST THIS EVENING. THE SNOW AND BLOWING SNOW ADVISORY IS NO LONGER IN EFFECT. ACCUMULATIONS OF 6 TO 12 INCHES OF NEW SNOW BY MIDNIGHT TONIGHT ARE EXPECTED SEELEY LAKE AREA AND NORTH TO THE CANADIAN BORDER. LOCATIONS ALONG THE HIGHWAY 200 WILL SEE 3 TO 6 INCHES OF NEW SNOW. IN ADDITION TO SNOW...STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH WILL DEVELOP DURING THE DAY CAUSING BLOWING AND DRIFTING OF SNOW...MAINLY OVER THE HIGHER TERRAIN. LOCAL WHITEOUT CONDITIONS ARE POSSIBLE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND STRONG WINDS ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ MTZ001-004-072300- /O.CON.KMSO.WS.W.0003.000000T0000Z-070108T0000Z/ KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- 917 AM MST SUN JAN 7 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. NEW SNOW ACCUMULATIONS OF 4 TO 9 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED TODAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. SOME VALLEY LOCATIONS IN THE KOOTENAI REGION WILL BE SHELTERED SOMEWHAT FROM STRONGER WINDS...WHILE THE MOUNTAINS WILL FEEL THE FULL EFFECT. $$ IDZ005-006-072300- /O.CON.KMSO.WS.W.0003.000000T0000Z-070108T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 817 AM PST SUN JAN 7 2007 ...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. NEW SNOW ACCUMULATIONS OF 5 TO 10 INCHES AND STRONG SOUTHWEST WINDS 15 TO 25 MPH WITH LOCAL GUSTS TO 35 MPH ARE EXPECTED TODAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. $$ MTZ006-072300- /O.CON.KMSO.WS.W.0003.000000T0000Z-070108T0000Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 917 AM MST SUN JAN 7 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. NEW SNOW ACCUMULATIONS OF 4 TO 9 INCHES AND STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED TODAY. THESE WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. $$
000 WWUS45 KMSO 072123 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 223 PM MST SUN JAN 7 2007 MTZ004-080000- /O.NEW.KMSO.SB.Y.0004.070108T0000Z-070108T0600Z/ /O.CON.KMSO.WS.W.0003.000000T0000Z-070108T0000Z/ LOWER CLARK FORK REGION- 223 PM MST SUN JAN 7 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 PM MST THIS EVENING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW AND BLOWING SNOW ADVISORY...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 PM MST THIS EVENING. A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. UNTIL LATE THIS AFTERNOON...SNOW...HEAVY AT TIMES PLUS STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH ARE EXPECTED TO CONTINUE. THEN THROUGH THE EVENING HOURS...BOTH SNOW AND WINDS WILL DECREASE IN INTENSITY. HOWEVER...ADDITIONAL ACCUMULATIONS OF 2 TO 5 INCHES ARE ANTICIPATED WITH WESTERLY WINDS 15 TO 25 MPH. WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$ IDZ005-006-080000- /O.NEW.KMSO.SB.Y.0004.070108T0000Z-070108T0600Z/ /O.CON.KMSO.WS.W.0003.000000T0000Z-070108T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 123 PM PST SUN JAN 7 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... ...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 PM PST THIS EVENING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW AND BLOWING SNOW ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 PM PST THIS EVENING. A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON. UNTIL LATE THIS AFTERNOON...SNOW...HEAVY AT TIMES PLUS STRONG SOUTHWEST WINDS 15 TO 25 MPH WITH LOCAL GUSTS TO 35 MPH ARE EXPECTED TO CONTINUE. THEN THROUGH THE EVENING HOURS...SNOW WILL DECREASE IN INTENSITY. HOWEVER...ADDITIONAL ACCUMULATIONS OF 3 TO 6 INCHES ARE ANTICIPATED WITH WESTERLY WINDS 15 TO 25 MPH. WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$ MTZ006-080000- /O.NEW.KMSO.SB.Y.0004.070108T0000Z-070108T0600Z/ /O.CON.KMSO.WS.W.0003.000000T0000Z-070108T0000Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 223 PM MST SUN JAN 7 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 PM MST THIS EVENING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW AND BLOWING SNOW ADVISORY...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 PM MST THIS EVENING. A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. UNTIL LATE THIS AFTERNOON...SNOW...HEAVY AT TIMES PLUS STRONG SOUTHWEST WINDS 15 TO 25 MPH WITH LOCAL GUSTS TO 35 MPH ARE EXPECTED TO CONTINUE. THEN THROUGH THE EVENING HOURS...SNOW WILL DECREASE IN INTENSITY. HOWEVER...ADDITIONAL ACCUMULATIONS OF 2 TO 5 INCHES ARE ANTICIPATED WITH WESTERLY WINDS 15 TO 25 MPH GUSTING TO 35 MPH. WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$ MTZ001-080000- /O.CON.KMSO.WS.W.0003.000000T0000Z-070108T0000Z/ KOOTENAI/CABINET REGION- 223 PM MST SUN JAN 7 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. SNOW WILL DECREASE IN INTENSITY THIS EVENING...HOWEVER AN ADDITIONAL 2 TO 4 INCHES IS POSSIBLE THROUGH THE EVENING HOURS. STORM TOTAL SNOW ACCUMULATIONS OF 4 TO 9 INCHES ARE EXPECTED THROUGH LATE THIS AFTERNOON. IN ADDITION TO SNOW...SOUTHWEST WINDS 15 TO 25 MPH WITH LOCAL GUSTS TO 30 MPH WILL CAUSE BLOWING AND DRIFTING OF SNOW. SOME VALLEY LOCATIONS IN THE KOOTENAI REGION WILL BE SHELTERED SOMEWHAT FROM STRONGER WINDS...WHILE THE MOUNTAINS WILL FEEL THE FULL EFFECT. $$ MTZ002-043-080000- /O.CON.KMSO.WS.W.0003.000000T0000Z-070108T0600Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 223 PM MST SUN JAN 7 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. ACCUMULATIONS OF 6 TO 12 INCHES OF NEW SNOW ARE EXPECTED BY MIDNIGHT TONIGHT FOR THE SEELEY LAKE AREA AND NORTH TO THE CANADIAN BORDER. LOCATIONS ALONG HIGHWAY 200 WILL SEE 3 TO 6 INCHES OF NEW SNOW. IN ADDITION TO SNOW...STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH WILL DEVELOP CAUSING BLOWING AND DRIFTING OF SNOW...MAINLY OVER THE HIGHER TERRAIN. LOCAL WHITEOUT CONDITIONS ARE POSSIBLE. $$
000 WWUS45 KMSO 072351 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 451 PM MST SUN JAN 7 2007 IDZ005-006-MTZ006-080600- /O.CAN.KMSO.WS.W.0003.000000T0000Z-070108T0000Z/ /O.CON.KMSO.SB.Y.0004.070108T0000Z-070108T0600Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- BITTERROOT/SAPPHIRE MOUNTAINS- 451 PM MST SUN JAN 7 2007 /351 PM PST SUN JAN 7 2007/ ...WINTER STORM WARNING IS CANCELLED... ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST /10 PM PST/ THIS EVENING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST /10 PM PST/ THIS EVENING. THROUGH THE EVENING HOURS...SNOW WILL DECREASE IN INTENSITY. HOWEVER...ADDITIONAL ACCUMULATIONS OF 2 TO 5 INCHES ARE ANTICIPATED WITH WESTERLY WINDS 15 TO 25 MPH GUSTING TO 35 MPH. WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$ MTZ004-080600- /O.CAN.KMSO.WS.W.0003.000000T0000Z-070108T0000Z/ /O.CON.KMSO.SB.Y.0004.070108T0000Z-070108T0600Z/ LOWER CLARK FORK REGION- 451 PM MST SUN JAN 7 2007 ...WINTER STORM WARNING IS CANCELLED... ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. THROUGH THE EVENING HOURS...BOTH SNOW AND WINDS WILL DECREASE IN INTENSITY. HOWEVER...ADDITIONAL ACCUMULATIONS OF 2 TO 5 INCHES ARE ANTICIPATED WITH WESTERLY WINDS 15 TO 25 MPH. WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$ MTZ001-080100- /O.CAN.KMSO.WS.W.0003.000000T0000Z-070108T0000Z/ KOOTENAI/CABINET REGION- 451 PM MST SUN JAN 7 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. HEAVY SNOWS HAVE DECREASED IN INTENSITY. LIGHT SNOW WILL CONTINUE THROUGH THE EVENING HOURS WITH AN INCH OR TWO POSSIBLE IN THE MOUNTAINS. $$ MTZ002-043-080600- /O.CON.KMSO.WS.W.0003.000000T0000Z-070108T0600Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 451 PM MST SUN JAN 7 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. ACCUMULATIONS OF 6 TO 12 INCHES OF NEW SNOW ARE EXPECTED BY MIDNIGHT TONIGHT FOR THE SEELEY LAKE AREA AND NORTH TO THE CANADIAN BORDER. LOCATIONS ALONG HIGHWAY 200 WILL SEE 3 TO 6 INCHES OF NEW SNOW. IN ADDITION TO SNOW...STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH WILL DEVELOP CAUSING BLOWING AND DRIFTING OF SNOW...MAINLY OVER THE HIGHER TERRAIN. LOCAL WHITEOUT CONDITIONS ARE POSSIBLE. $$
000 WWUS45 KMSO 080534 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1034 PM MST SUN JAN 7 2007 MTZ002-043-080645- /O.CAN.KMSO.WS.W.0003.000000T0000Z-070108T0600Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 1034 PM MST SUN JAN 7 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. SNOW WILL CONTINUE OVER THE NEXT SEVERAL HOURS WITH ONLY LIGHT ACCUMULATIONS EXPECTED. $$ IDZ005-006-MTZ004-006-080645- /O.CAN.KMSO.SB.Y.0004.000000T0000Z-070108T0600Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS- 1034 PM MST SUN JAN 7 2007 /934 PM PST SUN JAN 7 2007/ ...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW AND BLOWING SNOW ADVISORY. SNOW WILL CONTINUE OVER THE NEXT SEVERAL HOURS WITH ONLY LIGHT ACCUMULATIONS EXPECTED. $$
What forecasters said that day
The local office's own words before this winter storm warning 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 winter storm warning went out at Jan 6, 8:42 AM PST, 4 hours 49 minutes earlier.
Area forecast discussion, Jan 6, 8:42 AM PST, 4 hours 49 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
942 AM MST SAT JAN 6 2007
.UPDATE...A STRONG WEATHER SYSTEM WILL CONTINUE TO IMPACT NORTH-
CENTRAL IDAHO AND WESTERN MONTANA TODAY. THE ASSOCIATED COLD FRONT
HAS PASSED TO THE SOUTH AND EAST OF THE AREA THIS MORNING. IN THE
WAKE OF THIS FRONT THE AIR MASS WILL BECOME INCREASINGLY MORE
UNSTABLE WITH STRONG WESTERLY WIND DEVELOPING AS COOLER AIR
FLUSHES IN FROM THE WEST. UPDATE THIS MORNING TARGETS THE CHANGE
FROM WINTER STORM WARNINGS TO SNOW AND BLOWING SNOW ADVISORIES FOR
SOME AREAS...AS WELL AS REDUCED SNOWFALL EXPECTED FOR THE
REMAINDER OF TODAY. THAT SAID...CONDITIONS FAVOR BANDING OF SNOW
SHOWERS AS WELL AS OROGRAPHIC ENHANCEMENT OVER THE MOUNTAINS WHICH
CAN RESULT IN SIGNIFICANT AMOUNTS LOCALLY.
&&
.AVIATION...SNOW SHOWERS COMBINED WITH STRONG WESTERLY SURFACE
WINDS WILL PRODUCE BLOWING SNOW AND LOCALLY REDUCED VISIBILITIES
TODAY AT TERMINALS AND ALONG FLIGHT ROUTES IN BOTH MONTANA AND
IDAHO. ADDITIONALLY LOWERED CEILINGS AND FREQUENT MOUNTAIN/PASS
OBSCURATION CAN BE EXPECTED. PLEASE SEE APPROPRIATE TAFS AND TWEBS
FOR FURTHER DETAILS.
&&
.PREV DISCUSSION... /ISSUED 254 AM MST SAT JAN 6 2007/
..POTENT WINTER SYSTEM CONTINUING THROUGH THE DAY...
DISCUSSION...THE STRONG WEATHER SYSTEM IS MOVING OVER THE
NORTHERN ROCKIES LARGELY AS ADVERTISED. SOUTHERLY WINDS HAVE
INCREASED THROUGH THE NIGHT IN MOST LOCATIONS...BUT PARTICULARLY
IN THE MOUNTAINS AND FROM ROUGHLY GRANGEVILLE THROUGH RIGGINS.
SNOW AND BLOWING SNOW HAS BEEN PRETTY STEADY IN THE MOUNTAINS
JUDGING FROM CAMERAS...ROAD REPORTS...AND OBSERVATIONS. AS
EXPECTED...SNOW HAS BEEN A BIT MORE HIT AND MISS THUS FAR IN THE
VALLEYS DUE TO SHADOWING EFFECTS. HOWEVER...THE VALLEYS THROUGHOUT
THE CLEARWATER MOUNTAINS IN IDAHO ARE BEGINNING TO PICK UP
PRECIPITATION. SNOW WILL INTENSIFY IN THE SHADOWED VALLEYS ONCE
THE COLD FRONT APPROACHES AND PASSES LATER THIS MORNING. CURRENTLY
FEEL PRETTY COMFORTABLE WITH THE TIMING AND PLACEMENT OF THE
HIGHLIGHTS SO ANTICIPATE LITTLE CHANGE. SNOW WILL BEGIN TO TAPER
FROM NORTH TO SOUTH THIS AFTERNOON...BUT BLOWING SNOW COULD BE AN
ISSUE INTO THE EARLY EVENING...AND WILL THUS LINGER MANY OF THE
HIGHLIGHTS THROUGH THAT TIME FRAME.
AFTER A BRIEF RESPITE SATURDAY NIGHT...ANOTHER SYSTEM WILL MOVE
OVER THE NORTHERN ROCKIES IN THE MOIST NORTHWEST FLOW SUNDAY.
OROGRAPHIC LIFT WILL BE A MAJOR PLAYER WITH THIS SYSTEM...AND THE
MOUNTAINS ARE EXPECTED TO BE THE FOCUS FOR HEAVY SNOW POTENTIAL.
IT DOES NOT LOOK TO BE AS WIDESPREAD AS THE CURRENT STORM. IT
DOES...HOWEVER...HAVE ANOTHER BURST OF STRONG MID LEVEL FLOW
ALONG WITH A PRETTY GOOD SOUTHERLY SURFACE PRESSURE GRADIENT. SO
WINDS WILL AGAIN BE AN ISSUE.
MONDAY THROUGH TUESDAY A RIDGE OF HIGH PRESSURE WILL DEVELOP OVER
THE REGION CAUSING A GENERAL DRYING TREND. HOWEVER...THIS RIDGE
REMAINS WEAK THUS ALLOWING OCCASIONAL WEATHER FEATURES TO MAKE THEIR
WAY THROUGH THE RIDGE. THIS WILL BRING A SLIGHT CHANCE OF SNOW SHOWERS
MAINLY FOR NORTHWEST MONTANA AND THE MOUNTAINS OF WEST CENTRAL MONTANA.
ADDITIONALLY WARMER AIR TO MAKE ITS WAY INTO WESTERN MONTANA AND
NORTH CENTRAL IDAHO IN ASSOCIATION WITH THE RIDGE CAUSING TEMPERATURES
TO BE SLIGHTLY WARMER THAN NORMAL EARLY NEXT WEEK.
WEDNESDAY ANOTHER STRONG WEATHER SYSTEM WILL MOVE THROUGH BRITISH
COLUMBIA...GRADUALLY PUSHING A WARM FRONT ACROSS WESTERN MONTANA
AND NORTH CENTRAL IDAHO BEFORE A WELL DEFINED COLD FRONT QUICKLY
FOLLOWS. THE COMBINED EFFECTS OF THESE FRONTS WILL KEEP A CHANCE
FOR SOME PRECIPITATION OVER THE ENTIRE AREA. A MIXTURE OF RAIN
AND SNOW IS EXPECTED AT FIRST WITH THE WARM FRONT. THEN COLD AIR
WILL MOVE IN CAUSING SNOW LEVELS TO FALL TO THE VALLEY FLOORS.
FINALLY...AN ARCTIC AIRMASS WILL SETTLE OVER THE AREA ON THURSDAY
AND FRIDAY BRINGING BELOW NORMAL TEMPERATURES TO THE REGION
THROUGH THE REMAINDER OF NEXT WEEK.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...SNOW AND BLOWING SNOW ADVISORY UNTIL 2 PM MST THIS AFTERNOON FOR
BUTTE/BLACKFOOT REGION.
WINTER STORM WARNING UNTIL 5 PM MST THIS AFTERNOON FOR
BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION.
SNOW AND BLOWING SNOW ADVISORY UNTIL 2 PM MST THIS AFTERNOON FOR
MISSOULA/BITTERROOT VALLEYS.
SNOW AND BLOWING SNOW ADVISORY UNTIL 2 PM MST THIS AFTERNOON FOR
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION.
SNOW AND BLOWING SNOW ADVISORY UNTIL 2 PM MST THIS AFTERNOON FOR
FLATHEAD/MISSION VALLEYS.
SNOW AND BLOWING SNOW ADVISORY UNTIL 5 PM MST THIS AFTERNOON FOR
WEST GLACIER REGION.
ID...SNOW AND BLOWING SNOW ADVISORY UNTIL 2 PM MST THIS AFTERNOON FOR
EASTERN LEMHI COUNTY-WESTERN LEMHI COUNTY.
WINTER STORM WARNING UNTIL 4 PM PST THIS AFTERNOON FOR NORTHERN
CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS.
SNOW AND BLOWING SNOW ADVISORY UNTIL 1 PM PST THIS AFTERNOON FOR
LOWER HELLS CANYON/SALMON RIVER REGION-OROFINO/GRANGEVILLE
REGION.
&&
SHORT TERM...MSJ
LONG TERM....WHITMORE
AVIATION...FOSTERHazardous weather outlook, Jan 6, 3:51 AM PST, 9 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MISSOULA MT 451 AM MST SAT JAN 6 2007 IDZ005>010-MTZ001>007-043-062300- NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-KOOTENAI/CABINET REGION- WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- LOWER CLARK FORK REGION-MISSOULA/BITTERROOT VALLEYS- BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 451 AM MST SAT JAN 6 2007 /351 AM PST SAT JAN 6 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO...NORTHWEST MONTANA AND WEST CENTRAL MONTANA. .DAY ONE...TODAY A POTENT STORM SYSTEM WILL MOVE THROUGH NORTHERN IDAHO AND WESTERN MONTANA TODAY. MONITOR THE LATEST WARNINGS AND ADVISORIES (GTFWSWMSO) FOR THIS EVENT. PLEASE SEE GTFWSWMSO FOR HAZARDOUS WEATHER DETAILS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY AN EMBEDDED SYSTEM MOVING OVER THE AREA IN THE MOIST NORTHWEST FLOW SUNDAY AND SUNDAY NIGHT COULD PRODUCE ANOTHER ROUND OF GOOD MOUNTAIN SNOWFALL AND LIGHT TO MODERATE VALLEY SNOW ACCUMULATIONS. THIS SYSTEM ALSO LOOKS BREEZY. A MAJOR PATTERN CHANGE IS IN STORE DURING THE MIDDLE OF THE COMING WEEK AS A TROUGH DROPS DOWN FROM THE GULF OF ALASKA. POTENTIAL SNOWFALL WITH THE SYSTEM IS DIFFICULT TO DETERMINE AT THIS TIME...BUT AN ARCTIC AIR MASS WITH NORTHEAST WINDS IS LOOKING LIKE A SAFE BET. KEEP ABREAST OF THE LATEST FORECASTS REGARDING THIS STORM. .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 |
|---|---|---|---|---|
| Jan 6, 1:20 PM PST | Wind Advisory | MSO | Clearwater, Idaho | 29 hr |
| Jan 6, 1:31 PM PST | Snow and Blowing Snow Advisory | MSO | Flathead, Granite, Lake, Missoula, Powell | 19 hr |
Nearby
Winter Storm Warnings in Montana, 2007Winter Storm Warnings in Idaho, 2007Every winter storm warning 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.