Alert archive / Montana / Winter Storm Warnings in 2009
Winter Storm Warning 13, NWS Great Falls, MT
NWS Great Falls, MT issued this winter storm warning at Dec 12, 2009, 4:44 AM MST. It took effect at Dec 12, 2009, 12:00 PM MST. It was in force for 33 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
- Dec 12, 2009, 4:44 AM MST (11:44 UTC)
- In effect from
- Dec 12, 2009, 12:00 PM MST
- Expired
- Dec 13, 2009, 9:03 PM MST
- In force
- 33 hr
- Issued by
- NWS Great Falls, MT
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS45 KTFX 121144 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 444 AM MST SAT DEC 12 2009 MTZ009-012-014-048-050-051-121945- /O.UPG.KTFX.WS.A.0012.091212T1900Z-091214T0700Z/ /O.NEW.KTFX.WW.Y.0037.091212T1900Z-091214T0700Z/ /O.NEW.KTFX.WS.W.0013.091212T1900Z-091214T0700Z/ NORTHERN ROCKY MOUNTAIN FRONT-CASCADE- CENTRAL AND SOUTHERN LEWIS AND CLARK- SOUTHERN ROCKY MOUNTAIN FRONT-JUDITH BASIN-FERGUS- INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS... LOGAN PASS...GREAT FALLS...KINGS HILL PASS...HELENA... MACDONALD PASS...LINCOLN...ROGERS PASS...CHOTEAU...STANFORD... LEWISTOWN...LEWISTOWN DIVIDE 444 AM MST SAT DEC 12 2009 ...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT FOR ELEVATIONS ABOVE 5000 FEET... ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT FOR ELEVATIONS BELOW 5000 FEET... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET FOR HEAVY SNOW...WHICH IS IN EFFECT FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT. A WINTER WEATHER ADVISORY FOR ELEVATIONS BELOW 5000 FEET HAS ALSO BEEN ISSUED. THIS WINTER WEATHER ADVISORY FOR ELEVATIONS BELOW 5000 FEET FOR SNOW AND BLOWING SNOW IS IN EFFECT FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * AN ARCTIC COLD FRONT WILL MOVE SOUTHWARD THROUGH NORTH-CENTRAL MONTANA DURING THE DAY ON SATURDAY. EXPECT SNOW TO DEVELOP EARLY SATURDAY MORNING NEAR THE CANADIAN BORDER... AND BY LATE MORNING OVER CENTRAL MONTANA. ADDITIONALLY... EXPECT TEMPERATURES TO FALL TO BELOW ZERO BY EARLY SATURDAY EVENING. * TOTAL SNOW ACCUMULATIONS BY SUNDAY EVENING OF A 4 TO 7 INCHES ARE EXPECTED OVER THE PLAINS...AND 8 TO 12 INCHES IN THE MOUNTAINS BETWEEN GREAT FALLS AND LEWISTOWN. SNOWFALL SHOULD BE HEAVIER OVER THE ROCKY MOUNTAIN FRONT...WHERE 10 TO 20 INCHES OF SNOWFALL IS POSSIBLE. * GUSTY NORTH WINDS WILL CAUSE AREAS OF BLOWING SNOW... AND REDUCED VISIBILITIES BELOW ONE MILE AT TIMES SATURDAY AFTERNOON THROUGH SATURDAY NIGHT. * WIND CHILLS WILL DROP BELOW 20 BELOW ZERO BY LATE SATURDAY AFTERNOON OVER MOST OF NORTH CENTRAL MONTANA. FROST BITE CAN OCCUR IN LESS THAN 30 MINUTES AT THESE VALUES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ054-055-121945- /O.NEW.KTFX.WS.W.0013.091212T1900Z-091214T0700Z/ /O.NEW.KTFX.WW.Y.0037.091212T1900Z-091214T0700Z/ MEAGHER-GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...WHITE SULPHUR SPRINGS... BOZEMAN...BOZEMAN PASS...WEST YELLOWSTONE 444 AM MST SAT DEC 12 2009 ...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT FOR ELEVATIONS ABOVE 5000 FEET... ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT FOR ELEVATIONS BELOW 5000 FEET... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET FOR HEAVY SNOW...WHICH IS IN EFFECT FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT. A WINTER WEATHER ADVISORY FOR ELEVATIONS BELOW 5000 FEET HAS ALSO BEEN ISSUED. THIS WINTER WEATHER ADVISORY FOR ELEVATIONS BELOW 5000 FEET FOR SNOW IS IN EFFECT FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT. * AN ARCTIC COLD FRONT WILL MOVE SOUTHWARD THROUGH NORTH-CENTRAL MONTANA DURING THE DAY ON SATURDAY. EXPECT SNOW TO DEVELOP BY LATE MORNING. * SNOWFALL...TOTAL SNOW ACCUMULATIONS BY SUNDAY EVENING OF A 4 TO 7 INCHES ARE EXPECTED OVER THE VALLEYS...WITH 8 TO 12 INCHES OVER THE HIGHER TERRAIN. * LOCATIONS AFFECTED INCLUDE: WHITE SULPHUR SPRINGS...BOZEMAN... BOZEMAN PASS...WEST YELLOWSTONE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ010-011-013-044>047-049-121945- /O.UPG.KTFX.WS.A.0012.091212T1900Z-091214T0700Z/ /O.NEW.KTFX.WW.Y.0037.091212T1900Z-091214T0700Z/ EASTERN GLACIER-HILL-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA- BLAINE-EASTERN TETON- INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...HAVRE... BIG SANDY...FORT BENTON...SHELBY...CHESTER...CONRAD...CHINOOK... FAIRFIELD 444 AM MST SAT DEC 12 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...AN ARCTIC COLD FRONT WILL MOVE SOUTHWARD THROUGH NORTH-CENTRAL MONTANA DURING THE DAY ON SATURDAY. EXPECT SNOW TO DEVELOP EARLY SATURDAY MORNING NEAR THE CANADIAN BORDER... AND BY LATE MORNING OVER CENTRAL MONTANA. ADDITIONALLY... EXPECT TEMPERATURES TO FALL TO BELOW ZERO BY EARLY SATURDAY EVENING. * SNOWFALL...TOTAL SNOW ACCUMULATIONS BY SUNDAY EVENING OF A 4 TO 7 INCHES ARE EXPECTED OVER THE PLAINS. * WINDS...GUSTY NORTH WINDS WILL CAUSE AREAS OF BLOWING SNOW... AND REDUCED VISIBILITIES BELOW ONE MILE AT TIMES SATURDAY AFTERNOON THROUGH SATURDAY NIGHT. * WIND CHILLS WILL DROP BELOW 20 BELOW ZERO BY LATE SATURDAY AFTERNOON OVER MOST OF NORTH CENTRAL MONTANA. FROST BITE CAN OCCUR IN LESS THAN 30 MINUTES AT THESE VALUES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
5 follow-up statements
000 WWUS45 KTFX 121905 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 1205 PM MST SAT DEC 12 2009 MTZ009-012-014-048-050-051-054-055-130500- /O.CON.KTFX.WS.W.0013.000000T0000Z-091214T0700Z/ /O.CON.KTFX.WW.Y.0037.000000T0000Z-091214T0700Z/ NORTHERN ROCKY MOUNTAIN FRONT-CASCADE- CENTRAL AND SOUTHERN LEWIS AND CLARK- SOUTHERN ROCKY MOUNTAIN FRONT-JUDITH BASIN-FERGUS-MEAGHER- GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS... LOGAN PASS...GREAT FALLS...KINGS HILL PASS...HELENA... MACDONALD PASS...LINCOLN...ROGERS PASS...CHOTEAU...STANFORD... LEWISTOWN...LEWISTOWN DIVIDE...WHITE SULPHUR SPRINGS...BOZEMAN... BOZEMAN PASS...WEST YELLOWSTONE 1205 PM MST SAT DEC 12 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT FOR ELEVATIONS ABOVE 5000 FEET... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT FOR ELEVATIONS BELOW 5000 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT. A WINTER WEATHER ADVISORY FOR ELEVATIONS BELOW 5000 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT. * AN ARCTIC COLD FRONT WILL MOVE SOUTHWARD THROUGH NORTH-CENTRAL MONTANA TODAY. EXPECT SNOW BY EARLY AFTERNOON OVER CENTRAL MONTANA. * TOTAL SNOW ACCUMULATIONS BY SUNDAY EVENING OF 4 TO 7 INCHES ARE EXPECTED OVER THE PLAINS...AND 8 TO 12 INCHES IN THE MOUNTAINS. SNOWFALL WILL BE HEAVIER OVER THE ROCKY MOUNTAIN FRONT...WHERE 10 TO 20 INCHES OF SNOWFALL IS POSSIBLE. * GUSTY NORTHERLY WINDS TODAY AND TONIGHT WILL CAUSE AREAS OF BLOWING SNOW AND REDUCED VISIBILITIES BELOW ONE MILE AT TIMES. * EXPECT TEMPERATURES ACROSS THE CENTRAL PORTION OF THE REGION TO FALL BELOW ZERO EARLY THIS EVENING. WIND CHILLS WILL DROP BELOW 20 BELOW ZERO MOST OF NORTH CENTRAL MONTANA. FROST BITE CAN OCCUR IN LESS THAN 30 MINUTES AT THESE TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ010-011-013-044>047-049-130500- /O.CON.KTFX.WW.Y.0037.000000T0000Z-091214T0700Z/ EASTERN GLACIER-HILL-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA- BLAINE-EASTERN TETON- INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...HAVRE... BIG SANDY...FORT BENTON...SHELBY...CHESTER...CONRAD...CHINOOK... FAIRFIELD 1205 PM MST SAT DEC 12 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT. * AN ARCTIC COLD FRONT WILL MOVE SOUTHWARD THROUGH NORTH-CENTRAL MONTANA TODAY. EXPECT SNOW BY EARLY AFTERNOON OVER CENTRAL MONTANA. * TOTAL SNOW ACCUMULATIONS BY SUNDAY EVENING OF 4 TO 7 INCHES ARE EXPECTED OVER THE PLAINS...AND 8 TO 12 INCHES IN THE MOUNTAINS. SNOWFALL WILL BE HEAVIER OVER THE ROCKY MOUNTAIN FRONT...WHERE 10 TO 20 INCHES OF SNOWFALL IS POSSIBLE. * GUSTY NORTHERLY WINDS TODAY AND TONIGHT WILL CAUSE AREAS OF BLOWING SNOW AND REDUCED VISIBILITIES BELOW ONE MILE AT TIMES. * EXPECT TEMPERATURES ACROSS THE CENTRAL PORTION OF THE REGION TO FALL BELOW ZERO EARLY THIS EVENING. WIND CHILLS WILL DROP BELOW 20 BELOW ZERO MOST OF NORTH CENTRAL MONTANA. FROST BITE CAN OCCUR IN LESS THAN 30 MINUTES AT THESE TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
000 WWUS45 KTFX 130425 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 925 PM MST SAT DEC 12 2009 MTZ009-012-014-048-050-051-054-055-131300- /O.CON.KTFX.WS.W.0013.000000T0000Z-091214T0700Z/ /O.CON.KTFX.WW.Y.0037.000000T0000Z-091214T0700Z/ NORTHERN ROCKY MOUNTAIN FRONT-CASCADE- CENTRAL AND SOUTHERN LEWIS AND CLARK- SOUTHERN ROCKY MOUNTAIN FRONT-JUDITH BASIN-FERGUS-MEAGHER- GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS... LOGAN PASS...GREAT FALLS...KINGS HILL PASS...HELENA... MACDONALD PASS...LINCOLN...ROGERS PASS...CHOTEAU...STANFORD... LEWISTOWN...LEWISTOWN DIVIDE...WHITE SULPHUR SPRINGS...BOZEMAN... BOZEMAN PASS...WEST YELLOWSTONE...TARGHEE PASS 925 PM MST SAT DEC 12 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT FOR ELEVATIONS ABOVE 5000 FEET... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT FOR ELEVATIONS BELOW 5000 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT. A WINTER WEATHER ADVISORY FOR ELEVATIONS BELOW 5000 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT. * WIDESPREAD SNOW WILL CONTINUE ACROSS NORTH CENTRAL...CENTRAL AND PORTIONS OF SOUTHWEST MONTANA TONIGHT THROUGH LATE SUNDAY EVENING. * TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE EXPECTED BY LATE SUNDAY EVENING OVER THE PLAINS...WITH 8 TO 12 INCHES EXPECTED IN THE MOUNTAINS. SNOWFALL WILL BE HEAVIER OVER THE ROCKY MOUNTAIN FRONT...WHERE 10 TO 20 INCHES OF SNOWFALL IS POSSIBLE. * LOCALLY GUSTY NORTH WINDS WILL CAUSE AREAS OF BLOWING SNOW TONIGHT WITH VISIBILITIES REDUCED BELOW ONE MILE AT TIMES. * SUB ZERO TEMPERATURES ACROSS NORTH CENTRAL AND CENTRAL MONTANA WILL COMBINE WITH BREEZY NORTHERLY WINDS TO PRODUCE WIND CHILLS OF 20 TO 40 DEGREES BELOW ZERO. FROST BITE CAN OCCUR IN 10 TO 30 MINUTES AT THESE TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ010-011-013-044>047-049-131300- /O.CON.KTFX.WW.Y.0037.000000T0000Z-091214T0700Z/ EASTERN GLACIER-HILL-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA- BLAINE-EASTERN TETON- INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...HAVRE... BIG SANDY...FORT BENTON...SHELBY...CHESTER...CONRAD...CHINOOK... FAIRFIELD 925 PM MST SAT DEC 12 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST SUNDAY NIGHT. * WIDESPREAD SNOW WILL CONTINUE ACROSS NORTH CENTRAL MONTANA TONIGHT THROUGH LATE SUNDAY EVENING. * TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE EXPECTED BY LATE SUNDAY EVENING OVER THE PLAINS...WITH 8 TO 12 INCHES EXPECTED IN THE BEARS PAW MOUNTAINS AND OVER THE SWEET GRASS HILLS. * LOCALLY GUSTY NORTH WINDS WILL CAUSE AREAS OF BLOWING SNOW TONIGHT WITH VISIBILITIES REDUCED BELOW ONE MILE AT TIMES. * SUB ZERO TEMPERATURES ACROSS NORTH CENTRAL MONTANA WILL COMBINE WITH BREEZY NORTHERLY WINDS TO PRODUCE WIND CHILLS OF 20 TO 40 DEGREES BELOW ZERO. FROST BITE CAN OCCUR IN 10 TO 30 MINUTES AT THESE TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
000 WWUS45 KTFX 131106 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 406 AM MST SUN DEC 13 2009 MTZ009-012-014-048-050-051-054-055-131915- /O.CON.KTFX.WS.W.0013.000000T0000Z-091214T0700Z/ /O.CON.KTFX.WW.Y.0037.000000T0000Z-091214T0700Z/ NORTHERN ROCKY MOUNTAIN FRONT-CASCADE- CENTRAL AND SOUTHERN LEWIS AND CLARK- SOUTHERN ROCKY MOUNTAIN FRONT-JUDITH BASIN-FERGUS-MEAGHER- GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS... LOGAN PASS...GREAT FALLS...KINGS HILL PASS...HELENA... MACDONALD PASS...LINCOLN...ROGERS PASS...CHOTEAU...STANFORD... LEWISTOWN...LEWISTOWN DIVIDE...WHITE SULPHUR SPRINGS...BOZEMAN... BOZEMAN PASS...WEST YELLOWSTONE...TARGHEE PASS 406 AM MST SUN DEC 13 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT FOR ELEVATIONS ABOVE 5000 FEET... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT FOR ELEVATIONS BELOW 5000 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. A WINTER WEATHER ADVISORY FOR ELEVATIONS BELOW 5000 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * WIDESPREAD SNOW WILL CONTINUE ACROSS NORTH CENTRAL...CENTRAL AND PORTIONS OF SOUTHWEST MONTANA TONIGHT THROUGH LATE SUNDAY EVENING. * TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE EXPECTED BY LATE SUNDAY EVENING OVER THE PLAINS...WITH 8 TO 12 INCHES EXPECTED IN THE MOUNTAINS. SNOWFALL WILL BE HEAVIER OVER THE ROCKY MOUNTAIN FRONT...WHERE 10 TO 20 INCHES OF SNOWFALL IS POSSIBLE. * LOCALLY GUSTY NORTH WINDS WILL CAUSE AREAS OF BLOWING SNOW TONIGHT WITH VISIBILITIES REDUCED BELOW ONE MILE AT TIMES. * SUB ZERO TEMPERATURES ACROSS NORTH CENTRAL AND CENTRAL MONTANA WILL COMBINE WITH BREEZY NORTHERLY WINDS TO PRODUCE WIND CHILLS OF 20 TO 40 DEGREES BELOW ZERO. FROST BITE CAN OCCUR IN 10 TO 30 MINUTES AT THESE TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ010-011-013-044>047-049-131915- /O.CON.KTFX.WW.Y.0037.000000T0000Z-091214T0700Z/ EASTERN GLACIER-HILL-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA- BLAINE-EASTERN TETON- INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...HAVRE... BIG SANDY...FORT BENTON...SHELBY...CHESTER...CONRAD...CHINOOK... FAIRFIELD 406 AM MST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * WIDESPREAD SNOW WILL CONTINUE ACROSS NORTH CENTRAL MONTANA TONIGHT THROUGH LATE SUNDAY EVENING. * TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE EXPECTED BY LATE SUNDAY EVENING OVER THE PLAINS. * LOCALLY GUSTY NORTH WINDS WILL CAUSE AREAS OF BLOWING SNOW TONIGHT WITH VISIBILITIES REDUCED BELOW ONE MILE AT TIMES. * SUB ZERO TEMPERATURES ACROSS NORTH CENTRAL MONTANA WILL COMBINE WITH BREEZY NORTHERLY WINDS TO PRODUCE WIND CHILLS OF 20 TO 40 DEGREES BELOW ZERO. FROST BITE CAN OCCUR IN 10 TO 30 MINUTES AT THESE TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
000 WWUS45 KTFX 131850 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 1150 AM MST SUN DEC 13 2009 MTZ009-012-014-048-050-051-054-055-140700- /O.CON.KTFX.WS.W.0013.000000T0000Z-091214T0700Z/ /O.CON.KTFX.WW.Y.0037.000000T0000Z-091214T0700Z/ NORTHERN ROCKY MOUNTAIN FRONT-CASCADE- CENTRAL AND SOUTHERN LEWIS AND CLARK- SOUTHERN ROCKY MOUNTAIN FRONT-JUDITH BASIN-FERGUS-MEAGHER- GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS... LOGAN PASS...GREAT FALLS...KINGS HILL PASS...HELENA... MACDONALD PASS...LINCOLN...ROGERS PASS...CHOTEAU...STANFORD... LEWISTOWN...LEWISTOWN DIVIDE...WHITE SULPHUR SPRINGS...BOZEMAN... BOZEMAN PASS...WEST YELLOWSTONE...TARGHEE PASS 1150 AM MST SUN DEC 13 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT FOR ELEVATIONS ABOVE 5000 FEET... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT FOR ELEVATIONS BELOW 5000 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. A WINTER WEATHER ADVISORY FOR ELEVATIONS BELOW 5000 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * WIDESPREAD SNOW WILL CONTINUE ACROSS NORTH CENTRAL...CENTRAL AND PORTIONS OF SOUTHWEST MONTANA TONIGHT THROUGH THIS EVENING. * TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE EXPECTED BY LATE TONIGHT OVER THE PLAINS...WITH 8 TO 12 INCHES EXPECTED IN THE MOUNTAINS. SNOWFALL WILL BE HEAVIER OVER THE ROCKY MOUNTAIN FRONT...WHERE 10 TO 20 INCHES OF SNOWFALL IS POSSIBLE. * LOCALLY GUSTY NORTH WINDS WILL CAUSE AREAS OF BLOWING SNOW WITH VISIBILITIES REDUCED BELOW ONE MILE AT TIMES. * SUB ZERO TEMPERATURES ACROSS NORTH CENTRAL AND CENTRAL MONTANA WILL COMBINE WITH BREEZY NORTHERLY WINDS TO PRODUCE WIND CHILLS OF 20 TO 40 DEGREES BELOW ZERO. FROST BITE CAN OCCUR IN 10 TO 30 MINUTES AT THESE TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ010-011-013-044>047-049-140700- /O.CON.KTFX.WW.Y.0037.000000T0000Z-091214T0700Z/ EASTERN GLACIER-HILL-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA- BLAINE-EASTERN TETON- INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...HAVRE... BIG SANDY...FORT BENTON...SHELBY...CHESTER...CONRAD...CHINOOK... FAIRFIELD 1150 AM MST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * WIDESPREAD SNOW WILL CONTINUE ACROSS NORTH CENTRAL...CENTRAL AND PORTIONS OF SOUTHWEST MONTANA TONIGHT THROUGH THIS EVENING. * TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE EXPECTED BY LATE TONIGHT OVER THE PLAINS...WITH 8 TO 12 INCHES EXPECTED IN THE MOUNTAINS. SNOWFALL WILL BE HEAVIER OVER THE ROCKY MOUNTAIN FRONT...WHERE 10 TO 20 INCHES OF SNOWFALL IS POSSIBLE. * LOCALLY GUSTY NORTH WINDS WILL CAUSE AREAS OF BLOWING SNOW WITH VISIBILITIES REDUCED BELOW ONE MILE AT TIMES. * SUB ZERO TEMPERATURES ACROSS NORTH CENTRAL AND CENTRAL MONTANA WILL COMBINE WITH BREEZY NORTHERLY WINDS TO PRODUCE WIND CHILLS OF 20 TO 40 DEGREES BELOW ZERO. FROST BITE CAN OCCUR IN 10 TO 30 MINUTES AT THESE TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
000 WWUS45 KTFX 140403 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 903 PM MST SUN DEC 13 2009 MTZ009-012-014-048-050-051-054-055-141215- /O.CAN.KTFX.WS.W.0013.000000T0000Z-091214T0700Z/ /O.EXT.KTFX.WW.Y.0037.000000T0000Z-091214T1300Z/ NORTHERN ROCKY MOUNTAIN FRONT-CASCADE- CENTRAL AND SOUTHERN LEWIS AND CLARK- SOUTHERN ROCKY MOUNTAIN FRONT-JUDITH BASIN-FERGUS-MEAGHER- GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS... LOGAN PASS...GREAT FALLS...KINGS HILL PASS...HELENA... MACDONALD PASS...LINCOLN...ROGERS PASS...CHOTEAU...STANFORD... LEWISTOWN...LEWISTOWN DIVIDE...WHITE SULPHUR SPRINGS...BOZEMAN... BOZEMAN PASS...WEST YELLOWSTONE...TARGHEE PASS 903 PM MST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM MST MONDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS REPLACED THE WINTER STORM WARNING WITH A WINTER WEATHER ADVISORY WHICH IS NOW IN EFFECT UNTIL 6 AM MST MONDAY. * AREAS OF LIGHT SNOW WILL CONTINUE ACROSS NORTH CENTRAL...CENTRAL AND PORTIONS OF SOUTHWEST MONTANA TONIGHT THROUGH MONDAY MORNING. * ADDITIONAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED OVER THE PLAINS...WITH 2 TO 5 INCHES EXPECTED IN THE MOUNTAINS. * SUB ZERO TEMPERATURES ACROSS NORTH CENTRAL AND CENTRAL MONTANA WILL COMBINE WITH BREEZY NORTHERLY WINDS TO PRODUCE WIND CHILLS OF 20 TO 40 DEGREES BELOW ZERO. FROST BITE CAN OCCUR IN 10 TO 30 MINUTES AT THESE TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ010-011-013-044>047-049-141215- /O.EXT.KTFX.WW.Y.0037.000000T0000Z-091214T1300Z/ EASTERN GLACIER-HILL-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA- BLAINE-EASTERN TETON- INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...HAVRE... BIG SANDY...FORT BENTON...SHELBY...CHESTER...CONRAD...CHINOOK... FAIRFIELD 903 PM MST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM MST MONDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 6 AM MST MONDAY. * LIGHT SNOW WILL CONTINUE ACROSS PORTIONS OF NORTH CENTRAL AND CENTRAL MONTANA TONIGHT THROUGH MONDAY MORNING. * ADDITIONAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED OVER THE PLAINS...WITH 2 TO 5 INCHES EXPECTED IN THE MOUNTAINS. * SUB ZERO TEMPERATURES ACROSS NORTH CENTRAL AND CENTRAL MONTANA WILL COMBINE WITH NORTHERLY WINDS TO PRODUCE WIND CHILLS OF 20 TO 40 DEGREES BELOW ZERO. FROST BITE CAN OCCUR IN 10 TO 30 MINUTES AT THESE TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
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 Great Falls, MT wrote its last area forecast discussion before this winter storm warning went out at Dec 12, 4:30 AM MST, 14 minutes earlier.
Area forecast discussion, Dec 12, 4:30 AM MST, 14 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 430 AM MST SAT DEC 12 2009 .DISCUSSION... SATURDAY THROUGH MONDAY...AN ARCTIC COLD FRONT WILL MOVE OVER THE AREA THIS MORNING BRINGING COLDER TEMPERATURES AND SIGNIFICANT SNOWFALL BEHIND IT. TEMPERATURES WILL DROP BACK BELOW ZERO OVERNIGHT ACROSS THE HIGH PLAINS...WITH POOR TEMPERATURE RECOVERIES SUNDAY DURING THE DAY DUE TO SNOW FALL AND CLOUD COVER. HIGH TEMPERATURES ACROSS MUCH OF THE HIGH PLAINS OF NORTH CENTRAL AND CENTRAL MONTANA WILL STRUGGLE TO BREAK BACK ABOVE ZERO DEGREES. NORTH WINDS WILL MAKE THE SITUATION WORSE BRINGING WIND CHILL TEMPS BETWEEN -20 AND -40 DEGREES ALONG WITH REDUCED VISIBILITIES DUE TO THE BLOWING SNOW. SNOWFALL AMOUNTS THROUGH THE WEEKEND WILL LIKELY TOTAL 4 TO 10 INCHES IN THE HIGH PLAINS WITH 10 TO 20 INCHES IN THE MOUNTAINS. BECAUSE OF THESE CONDITIONS A WINTER STORM WARNING WILL BE ISSUED FOR AREAS ABOVE 5000 FEET IN NORTH CENTRAL AND CENTRAL MONTANA. AREAS BELOW 5000 FEET WILL BE IN A WINTER WEATHER ADVISORY. FOR MORE INFORMATION PLEASE SEE THE HAZARDOUS WEATHER OUTLOOK...OR THE APPROPRIATE WARNING/ADVISORY. DUE TO THE ARCTIC COLD FRONT BEING SHALLOW THE AMOUNT OF COLD AIR MOVING INTO SOUTHWEST MONTANA WILL BE LIMITED ALONG WITH SNOWFALL AMOUNTS. WITH THE EXCEPTION OF GALATIN COUNTY THE SOUTHWEST DOES NOT HAVE A HIGHLITE EXPECTED FOR IT AT THIS TIME. SUK MONDAY NIGHT THROUGH THURSDAY NIGHT...THE PERIOD STARTS WITH A SHALLOW ARCTIC AIRMASS OVER THE AREA AND SNOW GRADUALLY ENDING. AN UPPER RIDGE MOVES OVER THE PACIFIC NORTHWEST ON TUESDAY WITH A RATHER UNSTABLE NORTHWEST FLOW ALOFT OVER THE COUNTY WARNING AREA. THIS WILL ALLOW ISOLATED SNOW SHOWERS TO CONTINUE OVER WESTERN AND SOUTHWEST MONTANA. THE UPPER RIDGE WEAKENS AS IT MOVES EAST OF THE CONTINENTAL DIVIDE ON WEDNESDAY. SHORT WAVE ENERGY MOVING THROUGH THE RIDGE WILL MAINTAIN THE POSSIBILITY OF SNOW SHOWERS OVER WESTERN AND SOUTHWEST MONTANA WEDNESDAY AND THURSDAY. TEMPERATURES WILL GRADUALLY WARM THROUGH THE PERIOD WITH READINGS EXCEEDING SEASONAL AVERAGES BY THURSDAY. FRIDAY THROUGH SATURDAY...MODELS ARE IN BASIC AGREEMENT DURING THIS PERIOD...WITH SOME DIFFERENCE IN TIMING AND STRENGTH OF FEATURES. A WEAK UPPER LEVEL RIDGE OVER THE PACIFIC NORTHWEST MOVES SLOWLY EASTWARD TO CENTRAL MONTANA SATURDAY. A FEW DISTURBANCES RIDING OVER THE RIDGE CONTRIBUTE TO SCATTERED SNOW SHOWERS OVER THE MOUNTAINS WITH A FEW RAIN OR SNOW SHOWERS OVER THE PLAINS AND VALLEYS. DOWNSLOPE WIND...GUSTY AT TIMES OVER NORTH CENTRAL MONTANA WILL HELP LIMIT THE CHANCE OF PRECIPITATION OVER THE PLAINS AND LARGER VALLEYS. TEMPERATURES WILL BE ABOVE SEASONAL AVERAGES FOR MOST LOCATIONS. EK && .AVIATION... UPDATED 0430Z. ARCTIC FRONT WAS SOUTH OF A CUT BANK AND HAVRE LINE AT 04Z AND IT WILL CONTINUE TO MOVE SOUTH THE REST OF TONIGHT THROUGH SATURDAY AFTERNOON. FEEL PRETTY GOOD ABOUT THE TIMING OF THE ARCTIC FRONT WITH THE ACCOMPANYING SWITCH TO NORTHWEST TO NORTHEAST WINDS IN THE TAFS. EXPECT SNOW TO START NEAR KCTB AND KHVR BY 12Z THEN ALSO SPREAD SLOWLY SOUTH. DO NOT HAVE REAL GOOD FORECAST CONFIDENCE ON THE DETAILS OF WHETHER THE CEILINGS/VISIBILITIES WILL BE MVFR OR IFR OR LIFR AS THE SNOW SPREADS SOUTH BUT AM CONFIDENT THAT CEILINGS AND VISIBILITIES WILL BE MVFR OR LOWER. ALONG WITH THE SNOW EXPECT WIDESPREAD MOUNTAIN/PASS OBSCUREMENT. BLANK && .PRELIMINARY POINT TEMPS/POPS... GTF 22 -9 -6 -17 / 70 100 100 100 CTB 11 -18 -14 -22 / 90 100 100 100 HLN 22 0 4 -2 / 60 100 100 100 BZN 27 8 16 4 / 50 100 100 100 WEY 22 11 24 10 / 100 100 100 100 DLN 28 13 27 11 / 50 60 80 90 HVR 4 -16 -11 -21 / 70 100 100 100 LWT 22 -8 -3 -13 / 60 100 100 100 && .TFX WATCHES/WARNINGS/ADVISORIES... WINTER WEATHER ADVISORY FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT FOR BLAINE...CHOUTEAU...EASTERN GLACIER...EASTERN PONDERA...EASTERN TETON...HILL...LIBERTY...TOOLE. WINTER WEATHER ADVISORY FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT FOR CASCADE...CENTRAL AND SOUTHERN LEWIS AND CLARK... FERGUS...GALLATIN...JUDITH BASIN...MEAGHER...NORTHERN ROCKY MOUNTAIN FRONT...SOUTHERN ROCKY MOUNTAIN FRONT. WINTER STORM WARNING FROM NOON TODAY TO MIDNIGHT MST SUNDAY NIGHT FOR CASCADE...CENTRAL AND SOUTHERN LEWIS AND CLARK... FERGUS...GALLATIN...JUDITH BASIN...MEAGHER...NORTHERN ROCKY MOUNTAIN FRONT...SOUTHERN ROCKY MOUNTAIN FRONT. && SHORT TERM...SUK LONG TERM...EMANUEL/KURDY AVIATION...EMANUEL WEATHER.GOV/GREATFALLS
Hazardous weather outlook, Dec 11, 4:35 PM MST, 12 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE GREAT FALLS MT 435 PM MST FRI DEC 11 2009 MTZ009>014-044>051-121200- NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-CASCADE- CHOUTEAU-CENTRAL AND SOUTHERN LEWIS AND CLARK-TOOLE-LIBERTY- EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT- EASTERN TETON-JUDITH BASIN-FERGUS- 435 PM MST FRI DEC 11 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER FOR TONIGHT IS LOW. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE SUNDAY EVENING. AN SECOND SURGE OR ARCTIC AIR WILL BEGIN TO MOVE INTO NORTH CENTRAL MONTANA SATURDAY MORNING...AND SLOWLY CONTINUE TO PUSH SOUTHWARD INTO CENTRAL MONTANA BY EARLY AFTERNOON. EXPECT TEMPERATURES TO FALL TO BELOW ZERO READINGS OVER MUCH OF NORTH CENTRAL MONTANA BY LATE SATURDAY AFTERNOON...WITH WIND CHILL VALUES RANGING FROM 20 BELOW TO 30 BELOW ZERO. ADDITIONALLY...ACCUMULATING SNOW FALL IS LIKELY OVER THE REGION FROM SATURDAY AFTERNOON THROUGH SUNDAY EVENING...WITH THE HEAVIEST SNOWS LIKELY FALLING OVER THE ROCKY MOUNTAIN FRONT AND ACROSS THE MOUNTAINS OF CENTRAL MONTANA. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MTZ008-015-052>055-121200- BEAVERHEAD-MADISON-JEFFERSON-BROADWATER-MEAGHER-GALLATIN- 435 PM MST FRI DEC 11 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST MONTANA. .DAY ONE...TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 12, 4:44 AM MST | Winter Weather Advisory | TFX | 47 hr |
Nearby
Winter Storm Warnings in Montana, 2009Every winter storm warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.