Alert archive / Montana / Winter Storm Warnings in 2011
Winter Storm Warning 24, NWS Great Falls, MT
NWS Great Falls, MT issued this winter storm warning at May 29, 2011, 4:24 AM MDT. It took effect at May 29, 2011, 6:00 AM MDT. It was in force for 42 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
- May 29, 2011, 4:24 AM MDT (10:24 UTC)
- In effect from
- May 29, 2011, 6:00 AM MDT
- Expired
- May 31, 2011, 12:00 AM MDT
- In force
- 42 hr
- Issued by
- NWS Great Falls, MT
The text
As transmitted, in the capitals the NWS used until 2016.
655 WWUS45 KTFX 291024 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 424 AM MDT SUN MAY 29 2011 MTZ050-054-292100- /O.UPG.KTFX.WS.A.0010.110530T0000Z-110531T0600Z/ /O.NEW.KTFX.WS.W.0024.110530T0000Z-110531T0600Z/ JUDITH BASIN-MEAGHER- 424 AM MDT SUN MAY 29 2011 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT MONDAY NIGHT FOR ELEVATIONS ABOVE 5500 FEET... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT MONDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING AND MAIN IMPACT: SNOW...HEAVY AT TIMES...WILL DEVELOP IN THE MOUNTAINS THIS EVENING AND CONTINUE TO FALL THROUGH MONDAY EVENING. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES LATER TONIGHT AND ON MONDAY MORNING. * SNOW ACCUMULATIONS: TIME OF DAY AND SNOWFALL RATE WILL PLAY A LARGE ROLE IN SNOWFALL ACCUMULATIONS IN THIS LATE SEASON STORM. HOWEVER THE POTENTIAL EXISTS FOR 10 TO 15 INCHES OF NEW SNOW BY MONDAY EVENING FOR ELEVATIONS ABOVE 5500 FEET. * ELEVATIONS: FOR ELEVATIONS ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. 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. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ008-015-055-292100- /O.UPG.KTFX.WS.A.0010.110529T1200Z-110531T0600Z/ /O.NEW.KTFX.WS.W.0024.110529T1200Z-110531T0600Z/ BEAVERHEAD-MADISON-GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS... CHIEF JOSEPH PASS...MONIDA PASS...RAYNOLDS PASS... BATTLE RIDGE PASS...BOZEMAN PASS...TARGHEE PASS... WEST YELLOWSTONE 424 AM MDT SUN MAY 29 2011 ...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT MDT MONDAY NIGHT FOR ELEVATIONS ABOVE 5500 FEET... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL MIDNIGHT MDT MONDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING AND MAIN IMPACT: SNOW...HEAVY AT TIMES...WILL DEVELOP IN THE MOUNTAINS THIS MORNING AND CONTINUE TO FALL THROUGH MONDAY EVENING. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES TONIGHT AND INTO EARLY MONDAY MORNING. * SNOW ACCUMULATIONS: TIME OF DAY AND SNOWFALL RATE WILL PLAY A LARGE ROLE IN SNOWFALL ACCUMULATIONS IN THIS LATE SEASON STORM. HOWEVER THE POTENTIAL EXISTS FOR 10 TO 15 INCHES OF NEW SNOW BY MONDAY EVENING FOR ELEVATIONS ABOVE 5500 FEET. * ELEVATIONS: FOR ELEVATIONS ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ012-051-292100- /O.NEW.KTFX.WS.W.0024.110530T0000Z-110531T0600Z/ CASCADE-FERGUS- INCLUDING THE FOLLOWING LOCATIONS...KINGS HILL PASS 424 AM MDT SUN MAY 29 2011 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT MONDAY NIGHT FOR ELEVATIONS ABOVE 5500 FEET... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT MONDAY NIGHT. * TIMING AND MAIN IMPACT: SNOW...HEAVY AT TIMES...WILL DEVELOP IN THE MOUNTAINS THIS EVENING AND CONTINUE TO FALL THROUGH MONDAY EVENING. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES LATER TONIGHT AND ON MONDAY MORNING. * SNOW ACCUMULATIONS: TIME OF DAY AND SNOWFALL RATE WILL PLAY A LARGE ROLE IN SNOWFALL ACCUMULATIONS IN THIS LATE SEASON STORM. HOWEVER THE POTENTIAL EXISTS FOR 10 TO 15 INCHES OF NEW SNOW BY MONDAY EVENING FOR ELEVATIONS ABOVE 5500 FEET. * ELEVATIONS: FOR ELEVATIONS ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. 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. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
8 follow-up statements
146 WWUS45 KTFX 291056 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 456 AM MDT SUN MAY 29 2011 MTZ012-050-051-054-292100- /O.CON.KTFX.WS.W.0024.110530T0000Z-110531T0600Z/ CASCADE-JUDITH BASIN-FERGUS-MEAGHER- INCLUDING THE FOLLOWING LOCATIONS...KINGS HILL PASS 456 AM MDT SUN MAY 29 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT MONDAY NIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT MONDAY NIGHT. * TIMING AND MAIN IMPACT: SNOW...HEAVY AT TIMES...WILL DEVELOP IN THE MOUNTAINS THIS EVENING AND CONTINUE TO FALL THROUGH MONDAY EVENING. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES LATER TONIGHT AND ON MONDAY MORNING. * SNOW ACCUMULATIONS: TIME OF DAY AND SNOWFALL RATE WILL PLAY A LARGE ROLE IN SNOWFALL ACCUMULATIONS IN THIS LATE SEASON STORM. HOWEVER THE POTENTIAL EXISTS FOR 10 TO 15 INCHES OF NEW SNOW BY MONDAY EVENING FOR ELEVATIONS ABOVE 5500 FEET. * ELEVATIONS: FOR ELEVATIONS ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ008-015-055-292100- /O.CON.KTFX.WS.W.0024.110529T1200Z-110531T0600Z/ BEAVERHEAD-MADISON-GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS... CHIEF JOSEPH PASS...MONIDA PASS...RAYNOLDS PASS... BATTLE RIDGE PASS...BOZEMAN PASS...TARGHEE PASS... WEST YELLOWSTONE 456 AM MDT SUN MAY 29 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT MONDAY NIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT MONDAY NIGHT. * TIMING AND MAIN IMPACT: SNOW...HEAVY AT TIMES...WILL DEVELOP IN THE MOUNTAINS THIS MORNING AND CONTINUE TO FALL THROUGH MONDAY EVENING. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES TONIGHT AND INTO EARLY MONDAY MORNING. * SNOW ACCUMULATIONS: TIME OF DAY AND SNOWFALL RATE WILL PLAY A LARGE ROLE IN SNOWFALL ACCUMULATIONS IN THIS LATE SEASON STORM. HOWEVER THE POTENTIAL EXISTS FOR 10 TO 15 INCHES OF NEW SNOW BY MONDAY EVENING FOR ELEVATIONS ABOVE 5500 FEET. * ELEVATIONS: FOR ELEVATIONS ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. 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. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
808 WWUS45 KTFX 292047 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 247 PM MDT SUN MAY 29 2011 MTZ012-050-051-054-300500- /O.CON.KTFX.WS.W.0024.110530T0000Z-110531T0600Z/ CASCADE-JUDITH BASIN-FERGUS-MEAGHER- INCLUDING THE FOLLOWING LOCATIONS...KINGS HILL PASS 247 PM MDT SUN MAY 29 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT MONDAY NIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT MONDAY NIGHT. * TIMING AND MAIN IMPACT: SNOW...HEAVY AT TIMES...WILL DEVELOP IN THE MOUNTAINS TONIGHT AND CONTINUE TO FALL THROUGH MONDAY EVENING. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES LATER TONIGHT AND ON MONDAY MORNING. * SNOW ACCUMULATIONS: TIME OF DAY AND SNOWFALL RATE WILL PLAY A LARGE ROLE IN SNOWFALL ACCUMULATIONS IN THIS LATE SEASON STORM. HOWEVER THE POTENTIAL EXISTS FOR 10 TO 15 INCHES OF NEW SNOW BY MONDAY EVENING FOR ELEVATIONS ABOVE 5500 FEET. * ELEVATIONS: FOR ELEVATIONS ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ008-015-055-300500- /O.CON.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ BEAVERHEAD-MADISON-GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS... CHIEF JOSEPH PASS...MONIDA PASS...RAYNOLDS PASS... BATTLE RIDGE PASS...BOZEMAN PASS...TARGHEE PASS... WEST YELLOWSTONE 247 PM MDT SUN MAY 29 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT MONDAY NIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT MONDAY NIGHT. * TIMING AND MAIN IMPACT: SNOW...HEAVY AT TIMES...WILL CONTINUE IN THE MOUNTAINS THROUGH MONDAY AFTERNOON. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES TONIGHT AND INTO EARLY MONDAY MORNING. * SNOW ACCUMULATIONS: TIME OF DAY AND SNOWFALL RATE WILL PLAY A LARGE ROLE IN SNOWFALL ACCUMULATIONS IN THIS LATE SEASON STORM. HOWEVER THE POTENTIAL EXISTS FOR 10 TO 15 INCHES OF NEW SNOW BY MONDAY EVENING FOR ELEVATIONS ABOVE 5500 FEET. * ELEVATIONS: FOR ELEVATIONS ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. 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. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
457 WWUS45 KTFX 300341 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 941 PM MDT SUN MAY 29 2011 MTZ012-050-051-054-301200- /O.CON.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ CASCADE-JUDITH BASIN-FERGUS-MEAGHER- INCLUDING THE FOLLOWING LOCATIONS...KINGS HILL PASS 941 PM MDT SUN MAY 29 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT MONDAY NIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT MONDAY NIGHT. * TIMING AND MAIN IMPACT: SNOW WILL BECOME HEAVY AT TIMES IN THE MOUNTAINS LATE TONIGHT AND CONTINUE TO THROUGH MONDAY AFTERNOON BEFORE DIMINISHING MONDAY EVENING. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES ON MONDAY. TRAVELERS SHOULD BE PREPARED FOR WET AND SLUSHY ACCUMULATIONS ACROSS MOUNTAIN PASSES ALONG WITH REDUCED VISIBILITY IN HEAVY WET SNOW. * SNOW ACCUMULATIONS: TIME OF DAY AND SNOWFALL RATE WILL PLAY A LARGE ROLE IN SNOWFALL ACCUMULATIONS IN THIS LATE SEASON STORM. HOWEVER THE POTENTIAL EXISTS FOR 10 TO 15 INCHES OF NEW SNOW BY MONDAY EVENING FOR ELEVATIONS ABOVE 5500 FEET. * ELEVATIONS: FOR ELEVATIONS ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ008-015-055-301200- /O.CON.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ BEAVERHEAD-MADISON-GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS... CHIEF JOSEPH PASS...MONIDA PASS...RAYNOLDS PASS... BATTLE RIDGE PASS...BOZEMAN PASS...TARGHEE PASS... WEST YELLOWSTONE 941 PM MDT SUN MAY 29 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT MONDAY NIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT MONDAY NIGHT. * TIMING AND MAIN IMPACT: SNOW...HEAVY AT TIMES...WILL CONTINUE IN THE MOUNTAINS THROUGH MONDAY AFTERNOON. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES TONIGHT AND INTO EARLY MONDAY MORNING. TRAVELERS SHOULD BE PREPARED FOR WET AND SLUSHY ACCUMULATIONS ACROSS MOUNTAIN PASSES ALONG WITH REDUCED VISIBILITY IN HEAVY WET SNOW. * SNOW ACCUMULATIONS: TIME OF DAY AND SNOWFALL RATE WILL PLAY A LARGE ROLE IN SNOWFALL ACCUMULATIONS IN THIS LATE SEASON STORM. HOWEVER THE POTENTIAL EXISTS FOR 10 TO 15 INCHES OF NEW SNOW BY MONDAY EVENING FOR ELEVATIONS ABOVE 5500 FEET. * ELEVATIONS: FOR ELEVATIONS ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. 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. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
647 WWUS45 KTFX 301033 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 433 AM MDT MON MAY 30 2011 MTZ012-050-051-054-302100- /O.CON.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ CASCADE-JUDITH BASIN-FERGUS-MEAGHER- INCLUDING THE FOLLOWING LOCATIONS...KINGS HILL PASS 433 AM MDT MON MAY 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING AND MAIN IMPACT: SNOW...HEAVY AT TIMES IN THE MOUNTAINS WILL CONTINUE TO THROUGH THIS AFTERNOON BEFORE DIMINISHING THIS EVENING. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES THROUGH TODAY. TRAVELERS SHOULD BE PREPARED FOR SNOW COVERED AND SLIPPERY ROADS ACROSS MOUNTAIN PASSES...ALONG WITH REDUCED VISIBILITY IN HEAVY WET SNOW. * SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 10 TO 15 INCHES ARE EXPECTED ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ008-015-055-302100- /O.CON.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ BEAVERHEAD-MADISON-GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS... CHIEF JOSEPH PASS...MONIDA PASS...RAYNOLDS PASS... BATTLE RIDGE PASS...BOZEMAN PASS...TARGHEE PASS... WEST YELLOWSTONE 433 AM MDT MON MAY 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING AND MAIN IMPACT: SNOW WILL CONTINUE IN THE MOUNTAINS OF SOUTHWEST MONTANA THROUGH THE EVENING HOURS TODAY. EXPECT SNOWFALL RATES UP TO 1 INCH PER HOUR TIMES THIS MORNING. TRAVELERS SHOULD BE PREPARED FOR SNOW COVERED AND SLIPPERY ROADS ACROSS MOUNTAIN PASSES...ALONG WITH REDUCED VISIBILITY IN HEAVY WET SNOW. * SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 10 TO 15 INCHES ARE EXPECTED ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. 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. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
041 WWUS45 KTFX 302006 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 206 PM MDT MON MAY 30 2011 MTZ008-015-302115- /O.CAN.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ BEAVERHEAD-MADISON- INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS... CHIEF JOSEPH PASS...MONIDA PASS...RAYNOLDS PASS 206 PM MDT MON MAY 30 2011 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE WINTER STORM WARNING. SCATTERED SNOW SHOWERS WILL CONTINUE THROUGH THE EVENING BUT ADDITIONAL ACCUMULATIONS ARE NOT EXPECTED. $$ MTZ012-050-051-054-310415- /O.CON.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ CASCADE-JUDITH BASIN-FERGUS-MEAGHER- INCLUDING THE FOLLOWING LOCATIONS...KINGS HILL PASS 206 PM MDT MON MAY 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING AND MAIN IMPACT: SNOW WILL CONTINUE TO THROUGH THIS AFTERNOON AND DIMINISH THIS EVENING. TRAVELERS SHOULD BE PREPARED FOR SNOW COVERED AND SLIPPERY ROADS. * SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED. * VISIBILITIES: VISIBILITIES MAY BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES. 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. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ055-310415- /O.CON.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BATTLE RIDGE PASS... BOZEMAN PASS...TARGHEE PASS...WEST YELLOWSTONE 206 PM MDT MON MAY 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING AND MAIN IMPACT: SNOW WILL CONTINUE IN THE MOUNTAINS OF SOUTHWEST MONTANA THROUGH THE EVENING HOURS TODAY. EXPECT SNOWFALL RATES UP TO 1 INCH PER HOUR TIMES THIS MORNING. TRAVELERS SHOULD BE PREPARED FOR SNOW COVERED AND SLIPPERY ROADS ACROSS MOUNTAIN PASSES...ALONG WITH REDUCED VISIBILITY IN HEAVY WET SNOW. * SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 10 TO 15 INCHES ARE EXPECTED ABOVE 5500 FEET. * VISIBILITIES: EXPECT VISIBILITIES TO BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES ACROSS MOUNTAIN PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
820 WWUS45 KTFX 302016 CCA WSWTFX URGENT - WINTER WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE GREAT FALLS MT 215 PM MDT MON MAY 30 2011 MTZ008-015-302115- /O.CAN.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ BEAVERHEAD-MADISON- INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS... CHIEF JOSEPH PASS...MONIDA PASS...RAYNOLDS PASS 215 PM MDT MON MAY 30 2011 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE WINTER STORM WARNING. SCATTERED SNOW SHOWERS WILL CONTINUE THROUGH THE EVENING BUT ADDITIONAL ACCUMULATIONS ARE NOT EXPECTED. $$ MTZ012-050-051-054-310430- /O.CON.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ CASCADE-JUDITH BASIN-FERGUS-MEAGHER- INCLUDING THE FOLLOWING LOCATIONS...KINGS HILL PASS 215 PM MDT MON MAY 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING AND MAIN IMPACT: SNOW WILL CONTINUE TO THROUGH THIS AFTERNOON AND DIMINISH THIS EVENING. TRAVELERS SHOULD BE PREPARED FOR SNOW COVERED AND SLIPPERY ROADS. * SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED. * VISIBILITIES: VISIBILITIES MAY BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ055-310430- /O.COR.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BATTLE RIDGE PASS... BOZEMAN PASS...TARGHEE PASS...WEST YELLOWSTONE 215 PM MDT MON MAY 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING AND MAIN IMPACT: SNOW WILL CONTINUE TO THROUGH THIS AFTERNOON AND DIMINISH THIS EVENING. TRAVELERS SHOULD BE PREPARED FOR SNOW COVERED AND SLIPPERY ROADS. * SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED. * VISIBILITIES: VISIBILITIES MAY BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES. 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. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
847 WWUS45 KTFX 310224 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 824 PM MDT MON MAY 30 2011 MTZ012-050-051-054-310600- /O.CON.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ CASCADE-JUDITH BASIN-FERGUS-MEAGHER- INCLUDING THE FOLLOWING LOCATIONS...KINGS HILL PASS 824 PM MDT MON MAY 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING AND MAIN IMPACT: SNOW WILL CONTINUE TO THROUGH THIS EVENING. TRAVELERS SHOULD BE PREPARED FOR SNOW COVERED AND SLIPPERY ROADS. * SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED. * VISIBILITIES: VISIBILITIES MAY BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$ MTZ055-310600- /O.CON.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...BATTLE RIDGE PASS... BOZEMAN PASS...TARGHEE PASS...WEST YELLOWSTONE 824 PM MDT MON MAY 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR ELEVATIONS ABOVE 5500 FEET... A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING AND MAIN IMPACT: SNOW WILL CONTINUE TO THROUGH THIS EVENING. TRAVELERS SHOULD BE PREPARED FOR SNOW COVERED AND SLIPPERY ROADS. * SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED. * VISIBILITIES: VISIBILITIES MAY BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES. 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. FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1. && $$
867 WWUS45 KTFX 310540 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 1140 PM MDT MON MAY 30 2011 MTZ012-050-051-054-055-310645- /O.EXP.KTFX.WS.W.0024.000000T0000Z-110531T0600Z/ CASCADE-JUDITH BASIN-FERGUS-MEAGHER-GALLATIN- INCLUDING THE FOLLOWING LOCATIONS...KINGS HILL PASS... BATTLE RIDGE PASS...BOZEMAN PASS...TARGHEE PASS... WEST YELLOWSTONE 1140 PM MDT MON MAY 30 2011 ...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT FOR ELEVATIONS ABOVE 5500 FEET... THE WINTER STORM WARNING FOR ELEVATIONS ABOVE 5500 FEET WILL EXPIRE AT MIDNIGHT MDT TONIGHT. SCATTERED AREAS OF LIGHT SNOW CAN BE EXPECTED TONIGHT OVER THE LITTLE BELT MOUNTAINS...ALONG WITH THE MOUNTAINS ACROSS GALLATIN COUNTY. HOWEVER...SIGNIFICANT SNOW IS NO LONGER EXPECTED AND THE WINTER STORM WARNING WILL BE ALLOWED TO EXPIRE AT MIDNIGHT. $$
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 May 28, 10:35 PM MDT, 5 hours 49 minutes earlier.
Area forecast discussion, May 28, 10:35 PM MDT, 5 hours 49 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 1035 PM MDT SAT MAY 28 2011 .UPDATE... SATELLITE IMAGERY THIS EVENING SHOWS THE NEXT UPPER LEVEL LOW TO BRING SIGNIFICANT MOISTURE TO THE REGION TOMORROW NIGHT AND MONDAY NOW MOVING INTO THE GREAT BASIN FROM OR/NRN CA WITH CONVERGING FLOW OVER MUCH OF MT BETWEEN THIS SYSTEM AND NORTHERLY FLOW AROUND THE BACK SIDE OF THE SYSTEM LIFTING NE THROUGH CENTRAL CANADA. SHOWERS AND THUNDERSTORMS DEVELOPED ALONG A WEAK BOUNDARY THAT WAS ALONG THE CANADIAN BORDER THIS AFTERNOON WITH SOME REMNANTS FROM THE EARLY CONVECTION DRIFTING SOUTH AND DIMINISHING THROUGH THE REMAINDER OF THIS EVENING. BEST CHANCE FOR LINGERING PRECIPITATION THIS EVENING WILL BE IN THE GLACIER COUNTY/NORTHERN ROCKY MTN FRONT REGION WHERE MOISTURE FROM THE EARLIER SHOWER ACTIVITY WILL CONTINUE TO BE LIFTED ALONG THE MTNS IN NE FLOW ALOFT. MOISTURE IN ADVANCE THE INCOMING SYSTEM WILL LIKELY MOVE INTO FAR SW ZONES LATER TONIGHT. HOENISCH && .AVIATION... UPDATED 0435Z. EXPECT SCATTERED SHOWERS TO LINGER THROUGH THE NIGHT ESPECIALLY TOWARDS THE ROCKY MOUNTAIN FRONT. EXPECT LOCAL MVFR CEILINGS/VISIBILITIES IN THE SHOWERS. OTHERWISE EXPECT GENERALLY VFR CONDITIONS OVERNIGHT. AN EXCEPTION TO THIS COULD BE OVER THE PLAINS WHERE THERE IS A THREAT OF IFR CEILINGS AND POSSIBLY VISIBILITIES IN FOG LATE TONIGHT INTO EARLY SUNDAY MORNING. ON SUNDAY MOISTURE FROM A WEATHER SYSTEM WILL SPREAD INTO SOUTHWEST MONTANA DURING THE MORNING AND THEN SPREAD TO CENTRAL MONTANA DURING THE AFTERNOON AND EVENING. ALSO NOTE THAT MOUNTAINS ABOVE 7000 FEET SHOULD BECOME OBSCURED IN SNOW. EXPECT FAIRLY WIDESPREAD SHOWERS AS THE MOISTURE SPREADS NORTH. WITH THIS MOISTURE EXPECT AT LEAST LOCAL MVFR CEILINGS/VISIBILITIES IN PRECIPITATION. THE MVFR CEILINGS/VISIBILITIES COULD BECOME MORE WIDESPREAD SUNDAY NIGHT. IN THE FAR NORTH EXPECT AT LEAST SCATTERED SHOWERS WITH LOCAL MVFR CEILINGS AND VISIBILITIES SUNDAY INTO SUNDAY NIGHT. THERE WILL BE A THREAT OF THUNDERSTORMS SUNDAY AFTERNOON AND EVENING...MAINLY IN THE NORTH. DECIDED TO MENTION THIS IN THE KCTB/KHVR TAFS. FINALLY MODELS SUGGEST NORTHEAST WINDS SUNDAY SO HAD A HARD TIME FORECASTING WIND DIRECTIONS AT KLWT/KGTF/KHLN/KBZN WHERE WINDS TEND TO BE EITHER OUT OF THE NORTH OR OUT OF THE EAST. BLANK && .HYDROLOGY... SCATTERED TO NUMEROUS SHOWERS ARE EXPECTED THROUGH EARLY SUNDAY. AT THIS TIME IT APPEARS THAT ADDITIONAL RAINFALL AMOUNTS DURING THIS TIME PERIOD WILL NOT BE EXCESSIVE. HOWEVER...ANOTHER LARGER STORM SYSTEM WILL MOVE INTO SOUTHWEST AND CENTRAL MONTANA SUNDAY NIGHT WITH WIDESPREAD RAIN EXPECTED THROUGH MONDAY. THE HEAVIEST RAINFALL IS EXPECTED TO FALL EAST OF A LINE FROM HAVRE TO GREAT FALLS TO HELENA TO DILLON. RAINFALL TOTALS FROM SUNDAY MORNING THROUGH MONDAY WILL GENERALLY RANGE FROM 0.50 INCHES NEAR GREAT FALLS...TO 1 TO 2 INCHES FARTHER EAST IN THE JUDITH BASIN AND LEWISTOWN AREA. THIS WILL KEEP WATER LEVELS ON AREA RIVERS...STREAMS...AND CREEKS HIGH OR OVERFLOWING THEIR BANKS. FLOODING OF MANY AREA WATERWAYS IS EXPECTED TO CONTINUE THROUGH NEXT WEEK AS TEMPERATURES WARM ACCELERATING THE MELTING OF HIGHER ELEVATION SNOWPACK. && .PREV DISCUSSION... /ISSUED 600 PM MDT SAT MAY 28 2011/ FXUS65 KTFX 282346 AFDTFX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 600 PM MDT SAT MAY 28 2011 TONIGHT THROUGH MONDAY...A DEEP LOW PRESSURE SYSTEM OVER THE WEST COAST WILL MOVE EAST OVER NEVADA BY SUNDAY MORNING. THIS WILL BRING A LARGE INCREASE IN MOISTURE AND WIDESPREAD PRECIPITATION INTO SOUTHWEST MONTANA. FLOW AHEAD OF THIS SYSTEM WILL BE QUITE DIFFLUENT OVER SOUTHWEST MONTANA BY EARLY SUNDAY MORNING...AND THIS DIFFLUENCE WILL SPREAD TO THE NORTH DURING THE DAY. DYNAMICS ARE NOT PARTICULARLY STRONG...MOST LIFT IS ASSOCIATED WITH THE APPROACHING LOW PRESSURE CENTER...AND ONLY LOCALLY HEAVY PRECIP IS EXPECTED. HOWEVER...THE PRECIPITATION WILL BE WIDESPREAD AND OF LONG DURATION. A WINTER STORM WATCH HAS BEEN ISSUED FOR SOUTHWEST MONTANA FOR ELEVATIONS ABOVE 6000 FEET BEGINNING SUNDAY MORNING. A WATCH OVER MEAGHER AND JUDITH BASIN HAS BEEN ISSUED BEGINNING SUNDAY EVENING. ZELZER MONDAY NIGHT THROUGH SATURDAY...EXTENDED RANGE PERIOD BEGINS WITH UPPER LEVEL TROF CENTERED IN THE NORTHEAST CORNER OF MT AND CONTINUING TO EXIT TO THE EAST. SCATTERED SHOWERS ON THE BACKSIDE OF THE SYSTEM WILL GRADUALLY DISSIPATE FROM WEST TO EAST ACROSS NORTH CENTRAL AND CENTRAL MONTANA LATE MON NIGHT. FORECAST MODELS STILL IN VERY GOOD AGREEMENT THAT A STRONG UPPER LEVEL RIDGE WILL THEN SETTLE OVER THE REGION FOR THE REMAINDER OF THE WEEK...BRINGING DRY CONDITIONS AND MUCH WARMER TEMPERATURES. MEANWHILE A FAIRLY DEEP CLOSED LOW/UPPER LEVEL TROF DIGS SOUTH ALONG THE PACNW COAST AND REMAINS NEARLY STATIONARY NEAR THE OR/CA BORDER THROUGH AT LEAST THURSDAY. THE SYSTEM WILL PUSH INTERMITTENT PLUMES OF PACIFIC MOISTURE NORTHWARD INTO WESTERN MT...GIVING A CHANCE OF SHOWERS/THUNDERSTORMS ALONG THE ROCKY MTN FRONT EACH AFTN/EVE THROUGH FRIDAY...WHILE THE REST OF THE FORECAST AREA REMAINS DRY. THE GFS AND EUROPEAN MODEL SOLUTIONS BEGIN TO DIVERGE LATE FRI INTO SAT. BOTH MODELS SHOW A GRADUAL WEAKENING OF THE HIGH PRESSURE RIDGE...BUT THE EUROPEAN BRINGS THE PACIFIC LOW ASHORE TO THE CA/NV BORDER AND SETS UP A BROAD TROF ACROSS THE NORTHERN ROCKIES AND SRN CANADA. THE GFS KEEPS THE LOW CENTERED OFF THE CENTRAL CALIFORNIA COAST AND MAINTAINS THE UPPER LEVEL RIDGE THROUGH NEXT WEEKEND. FOR NOW...FORECAST GRIDS LEAN TOWARD THE GFS SOLUTION. THE BEST NEWS IS THAT WITH EITHER MODEL...THE REGION WILL SEE A PRONOUNCED WARM-UP DURING THE LATTER HALF OF THE WEEK WITH MID-UPPER 70S EXPECTED OVER THE PLAINS/VALLEYS AND MID-UPPER 60S FOR THE MOUNTAINS. WARANAUSKAS && .PRELIMINARY POINT TEMPS/POPS... GTF 38 54 40 49 / 50 50 90 90 CTB 36 56 38 53 / 80 40 80 80 HLN 38 55 41 51 / 30 70 100 90 BZN 34 50 37 49 / 40 90 90 90 WEY 28 41 29 42 / 60 100 90 80 DLN 34 47 35 50 / 50 80 80 80 HVR 39 62 44 55 / 50 30 80 90 LWT 35 49 38 44 / 30 60 100 100 && .TFX WATCHES/WARNINGS/ADVISORIES... FLOOD WATCH THROUGH TUESDAY AFTERNOON BEAVERHEAD...BROADWATER... CENTRAL AND SOUTHERN LEWIS AND CLARK...EASTERN GLACIER...EASTERN PONDERA...EASTERN TETON...GALLATIN...HILL...JEFFERSON... LIBERTY...MADISON...NORTHERN ROCKY MOUNTAIN FRONT...SOUTHERN ROCKY MOUNTAIN FRONT...TOOLE. SMALL STREAM FLOOD ADVISORY UNTIL SUNDAY MORNING FOR PORTIONS OF GLACIER AND HILL COUNTIES. AREAL FLOOD WARNING THROUGH AT LEAST MONDAY MORNING FOR CASCADE...FERGUS...JUDITH BASIN...CHOUTEAU...BLAINE AND MEAGHER COUNTIES WINTER STORM WATCH FROM SUNDAY EVENING THROUGH MONDAY EVENING FOR ELEVATIONS ABOVE 6000 FEET FOR JUDITH BASIN...MEAGHER. WINTER STORM WATCH FROM 6 AM MDT SUNDAY THROUGH MONDAY EVENING FOR ELEVATIONS ABOVE 6000 FEET FOR BEAVERHEAD...GALLATIN... MADISON. && WEATHER.GOV/GREATFALLS
Hazardous weather outlook, May 29, 4:15 AM MDT, 9 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREAT FALLS MT 415 AM MDT SUN MAY 29 2011 MTZ008-012-015-050-051-054-055-301200- BEAVERHEAD-CASCADE-MADISON-JUDITH BASIN-FERGUS-MEAGHER-GALLATIN- 415 AM MDT SUN MAY 29 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT WINTER STORM WARNINGS ARE IN EFFECT ABOVE 5500 FEET. NUMEROUS FLOOD HIGHLIGHTS REMAIN IN EFFECT ACROSS THE REGION. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A WINTER STORM WARNING REMAINS IN EFFECT THROUGH MONDAY EVENING FOR LOCATIONS ABOVE 5500 FEET. NUMEROUS FLOOD HIGHLIGHTS REMAIN IN EFFECT UNTIL THE THREAT FOR FLOODING HAS ENDED. .SPOTTER INFORMATION STATEMENT... SPOTTER REPORTS OF FLOODING...SNOWFALL OR SIGNIFICANT RESTRICTIONS TO VISIBILITY WOULD BE GREATLY APPRECIATED. MTZ009>011-013-014-044>049-052-053-301200- NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-CHOUTEAU- CENTRAL AND SOUTHERN LEWIS AND CLARK-TOOLE-LIBERTY- EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT- EASTERN TETON-JEFFERSON-BROADWATER- 415 AM MDT SUN MAY 29 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT NUMEROUS FLOOD HIGHLIGHTS REMAIN IN EFFECT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY WIDESPREAD RAIN AND MOUNTAIN SNOW IS EXPECTED TO AFFECT THE REGION FROM TONIGHT THROUGH MONDAY MORNING. THOSE WHO HAVE OUTDOOR ACTIVITIES PLANNED FOR SHOULD BE PREPARED FOR RAINY WEATHER AT LOWER ELEVATIONS...AND SNOW IF THEY PLAN TO BE IN THE MOUNTAINS OVER THE NEXT FEW DAYS. NUMEROUS FLOOD HIGHLIGHTS WILL REMAIN IN EFFECT UNTIL THE THREAT FOR FLOODING HAS ENDED. .SPOTTER INFORMATION STATEMENT... SPOTTER REPORTS OF FLOODING...SNOWFALL OR SIGNIFICANT RESTRICTIONS TO VISIBILITY WOULD BE GREATLY APPRECIATED.
Nearby
Winter Storm Warnings in Montana, 2011Every winter storm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.