Alert archive / Montana / Winter Storm Warnings in 2012
Winter Storm Warning 7, NWS Billings, MT
NWS Billings, MT issued this winter storm warning at Apr 27, 2012, 1:54 PM MDT for 5 counties in Montana. It took effect at Apr 27, 2012, 6:43 PM MDT. 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
- Apr 27, 2012, 1:54 PM MDT (19:54 UTC)
- In effect from
- Apr 27, 2012, 6:43 PM MDT
- Expired
- Apr 29, 2012, 3:55 AM MDT
- In force
- 33 hr
- Issued by
- NWS Billings, MT
Counties Carbon County, MT, Park County, MT, Stillwater County, MT, Sweet Grass County, MT, Wheatland County, MT
The radar
The Billings radar (KBLX), 89 km from the middle of the area, began a volume at 19:58 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Great_falls, MT (KTFX), launched 12:00Z, 7.9 hours before the alert went out and 203 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
- 886 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- -47 m²/s²
- 0-3 km storm-relative helicity
- 179 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
748 WWUS45 KBYZ 271954 WSWBYZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BILLINGS MT 154 PM MDT FRI APR 27 2012 .A STRONG SPRING STORM SYSTEM IS EXPECTED TO BRING 12 TO 16 INCHES OF SNOW TO THE BIG HORN MOUNTAINS LATE TONIGHT INTO SUNDAY MORNING. STRONG GUSTY NORTHWEST WINDS WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING...REDUCING VISIBILITY AND CREATING DANGEROUS DRIVING CONDITIONS ON AREA ROADS. WYZ098-282000- /O.UPG.KBYZ.WS.A.0005.120428T0600Z-120429T1200Z/ /O.NEW.KBYZ.WS.W.0007.120428T0600Z-120429T1200Z/ NORTHEAST BIG HORN MOUNTAINS- INCLUDING THE LOCATIONS OF...BURGESS JCT 154 PM MDT FRI APR 27 2012 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM MDT SUNDAY... THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM MDT SUNDAY. * TIMING...MODERATE TO HEAVY SNOW IS POSSIBLE FROM LATE TONIGHT THROUGH EARLY SUNDAY MORNING. * SNOW ACCUMULATION...12 TO 16 INCHES OF SNOW ARE POSSIBLE. * WINDS...NORTHWESTERLY WINDS AT 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING OF SNOW. * IMPACTS...VISIBILITY MAY BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. ROADS MAY BECOME SNOW COVERED AND SLIPPERY...CREATING DANGEROUS DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ HTTP://WEATHER.GOV/BILLINGS
8 follow-up statements
948 WWUS45 KBYZ 280043 WSWBYZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BILLINGS MT 643 PM MDT FRI APR 27 2012 .A STRONG SPRING STORM SYSTEM WILL BRING HEAVY SNOW AND GUSTY WINDS TO THE BIG HORN AND CRAZY MOUNTAINS TONIGHT THROUGH MUCH OF THE WEEKEND. MTZ068-290000- /O.EXB.KBYZ.WS.W.0007.120428T0043Z-120429T0000Z/ CRAZY MOUNTAINS- 643 PM MDT FRI APR 27 2012 ...WINTER STORM WARNING IN EFFECT UNTIL 6 PM MDT SATURDAY... THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 6 PM MDT SATURDAY. * TIMING...PERIODS OF MODERATE TO HEAVY SNOW CAN BE EXPECTED TONIGHT THROUGH SATURDAY. SNOW WILL BEGIN TO TAPER OFF SATURDAY NIGHT. * SNOW ACCUMULATION...LOOK FOR 12 TO 16 INCHES OF TOTAL SNOW ACCUMULATION. * IMPACTS...ANYONE IN THE HIGH COUNTRY SHOULD BE PREPARED FOR HEAVY SNOW...GUSTY WINDS AND CONSIDERABLE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ098-290000- /O.CON.KBYZ.WS.W.0007.120428T0600Z-120429T1200Z/ NORTHEAST BIG HORN MOUNTAINS- INCLUDING THE LOCATIONS OF...BURGESS JCT 643 PM MDT FRI APR 27 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM MDT SUNDAY... A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM MDT SUNDAY. * TIMING...MODERATE TO HEAVY SNOW IS EXPECTED FROM LATE TONIGHT THROUGH EARLY SUNDAY MORNING. * SNOW ACCUMULATION...LOOK FOR 12 TO 16 INCHES OF TOTAL SNOW ACCUMULATION. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. ROADS WILL BECOME SNOW COVERED AND SLIPPERY... CREATING DANGEROUS DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ HTTP://WEATHER.GOV/BILLINGS
996 WWUS45 KBYZ 280329 WSWBYZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BILLINGS MT 929 PM MDT FRI APR 27 2012 .A STRONG SPRING STORM SYSTEM WILL BRING HEAVY SNOW AND GUSTY WINDS TO THE BIG HORN AND CRAZY MOUNTAINS TONIGHT THROUGH MUCH OF THE WEEKEND. WYZ098-290000- /O.CON.KBYZ.WS.W.0007.120428T0600Z-120429T1200Z/ NORTHEAST BIG HORN MOUNTAINS- INCLUDING THE LOCATIONS OF...BURGESS JCT 929 PM MDT FRI APR 27 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY... A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...MODERATE TO HEAVY SNOW IS EXPECTED FROM LATE TONIGHT THROUGH EARLY SUNDAY MORNING. * SNOW ACCUMULATION...LOOK FOR 12 TO 16 INCHES OF TOTAL SNOW ACCUMULATION. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. ROADS WILL BECOME SNOW COVERED AND SLIPPERY... CREATING DANGEROUS DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ068-290000- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T0000Z/ CRAZY MOUNTAINS- 929 PM MDT FRI APR 27 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY... A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY. * TIMING...PERIODS OF MODERATE TO HEAVY SNOW CAN BE EXPECTED TONIGHT THROUGH SATURDAY. SNOW WILL BEGIN TO TAPER OFF SATURDAY NIGHT. * SNOW ACCUMULATION...LOOK FOR 1 TO 2 FEET OF TOTAL SNOW ACCUMULATION. * IMPACTS...ANYONE IN THE HIGH COUNTRY SHOULD BE PREPARED FOR HEAVY SNOW...GUSTY WINDS AND CONSIDERABLE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ HTTP://WEATHER.GOV/BILLINGS
245 WWUS45 KBYZ 280958 WSWBYZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BILLINGS MT 358 AM MDT SAT APR 28 2012 .A SPRING STORM SYSTEM WILL BRING HEAVY SNOW AND GUSTY WINDS TO THE CRAZY MOUNTAINS TODAY...AND THE BIG HORN MOUNTAINS THROUGH TONIGHT. ACCUMULATING SNOW WILL ALSO AFFECT TRAVEL ON RIDGETOPS ABOVE 4000 FEET IN PARTS OF SOUTH CENTRAL MONTANA AND SHERIDAN COUNTY WYOMING TODAY AND TONIGHT. WYZ098-291200- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ NORTHEAST BIG HORN MOUNTAINS- INCLUDING THE LOCATIONS OF...BURGESS JCT 358 AM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH EARLY ON SUNDAY MORNING. * SNOW ACCUMULATION...3 TO 5 INCHES OF SNOW WAS REPORTED OVER THE BIG HORN MOUNTAINS AS OF EARLY SATURDAY MORNING. AN ADDITIONAL 8 TO 12 INCHES OF SNOW WILL FALL TODAY AND TONIGHT...BRINGING THE STORM TOTALS TO BETWEEN 11 AND 17 INCHES. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. ROADS WILL BE SNOW COVERED AND SLIPPERY... CREATING DANGEROUS DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ068-290000- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T0000Z/ CRAZY MOUNTAINS- 358 AM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL CONTINUE TODAY. THE SNOW WILL BEGIN TO TAPER OFF TONIGHT. * SNOW ACCUMULATION...21 INCHES OF SNOW WAS REPORTED AT THE SOUTH FORK OF THE SHIELDS RIVER EARLY SATURDAY MORNING. AN ADDITIONAL 3 TO 6 INCHES OF SNOW WILL FALL OVER THE CRAZY MOUNTAINS TODAY. THIS WILL RESULT IN STORM TOTAL ACCUMULATIONS OF 12 TO 26 INCHES. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...ANYONE IN THE HIGH COUNTRY SHOULD BE PREPARED FOR HEAVY SNOW...GUSTY WINDS AND CONSIDERABLE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ036-038-058-WYZ099-291200- /O.NEW.KBYZ.WW.Y.0015.120428T0958Z-120429T1200Z/ POWDER RIVER-SOUTHERN BIG HORN-SOUTHERN ROSEBUD- SHERIDAN FOOTHILLS- INCLUDING THE LOCATIONS OF...PRYOR...FORT SMITH...BIG HORN... STORY 358 AM MDT SAT APR 28 2012 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT SUNDAY ABOVE 4000 FEET... THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER WEATHER ADVISORY ABOVE 4000 FEET FOR SNOW...WHICH IS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF SNOW WILL OCCUR THROUGH TONIGHT. THE SNOW MAY MIX WITH OR CHANGE TO RAIN TODAY...BUT WILL CHANGE BACK TO ALL SNOW TONIGHT. * SNOW ACCUMULATION...3 TO 7 INCHES. * IMPACTS...VISIBILITY WILL BE SIGNIFICANT REDUCED...AND ROADS WILL BE SLUSH OR SNOW COVERED AND SLIPPERY AT TIMES. TRAVELERS SHOULD BE PREPARED FOR RAPID AND DRASTIC CHANGES IN CONDITIONS AS THEY TRAVEL UP HIGHER RIDGETOPS...WHERE SNOW COULD BE HEAVY AT TIMES. THIS INCLUDES TRAVEL ALONG HIGHWAY 212 AND INTERSTATE 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ HTTP://WEATHER.GOV/BILLINGS CJS
383 WWUS45 KBYZ 281604 WSWBYZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BILLINGS MT 1004 AM MDT SAT APR 28 2012 .A SPRING STORM SYSTEM WILL BRING HEAVY SNOW AND GUSTY WINDS TO THE CRAZY MOUNTAINS TODAY...AND THE BEARTOOTH...ABSAROKA AND BIG HORN MOUNTAINS THROUGH TONIGHT. ACCUMULATING SNOW WILL ALSO AFFECT TRAVEL ON RIDGETOPS ABOVE 4000 FEET IN PARTS OF SOUTH CENTRAL MONTANA AND SHERIDAN COUNTY WYOMING TODAY AND TONIGHT. MTZ067-291200- /O.EXA.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ ABSAROKA/BEARTOOTH MOUNTAINS- INCLUDING THE LOCATIONS OF...COOKE CITY 1004 AM MDT SAT APR 28 2012 ...WINTER STORM WARNING IN EFFECT UNTIL 6 AM MDT SUNDAY... THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...MODERATE TO HEAVY SNOW WILL CONTINUE TODAY THROUGH EARLY SUNDAY MORNING. * SNOW ACCUMULATION...12 TO 16 INCHES OF SNOW IS EXPECTED BY EARLY SUNDAY MORNING. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ098-291200- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ NORTHEAST BIG HORN MOUNTAINS- INCLUDING THE LOCATIONS OF...BURGESS JCT 1004 AM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH EARLY SUNDAY MORNING. * SNOW ACCUMULATION...6 INCHES OF SNOW HAS ALREADY FALLEN. AN ADDITIONAL 6 TO 10 INCHES OF SNOW WILL FALL TODAY THROUGH TONIGHT...BRINGING THE STORM TOTALS TO BETWEEN 11 AND 17 INCHES. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. ROADS WILL BE SNOW COVERED AND SLIPPERY... CREATING DANGEROUS DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ068-290000- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T0000Z/ CRAZY MOUNTAINS- 1004 AM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL CONTINUE TODAY. THE SNOW WILL BEGIN TO TAPER OFF BY EARLY TONIGHT. * SNOW ACCUMULATION...21 INCHES OF SNOW WAS REPORTED AT THE SOUTH FORK OF THE SHIELDS RIVER SATURDAY MORNING. AN ADDITIONAL 3 TO 6 INCHES OF SNOW WILL FALL OVER THE CRAZY MOUNTAINS TODAY. THIS WILL RESULT IN STORM TOTAL ACCUMULATIONS OF 24 TO 28 INCHES. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...ANYONE IN THE HIGH COUNTRY SHOULD BE PREPARED FOR HEAVY SNOW...GUSTY WINDS AND CONSIDERABLE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ036-038-058-WYZ099-291200- /O.CON.KBYZ.WW.Y.0015.000000T0000Z-120429T1200Z/ POWDER RIVER-SOUTHERN BIG HORN-SOUTHERN ROSEBUD- SHERIDAN FOOTHILLS- INCLUDING THE LOCATIONS OF...PRYOR...FORT SMITH...BIG HORN... STORY 1004 AM MDT SAT APR 28 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY ABOVE 4000 FEET... A WINTER WEATHER ADVISORY ABOVE 4000 FEET FOR SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF SNOW WILL OCCUR TONIGHT. THE SNOW MAY MIX WITH OR CHANGE TO RAIN TODAY...BUT WILL CHANGE BACK TO ALL SNOW TONIGHT. * SNOW ACCUMULATION...3 TO 7 INCHES. * IMPACTS...VISIBILITY WILL BE SIGNIFICANT REDUCED...AND ROADS WILL BE SLUSH OR SNOW COVERED AND SLIPPERY AT TIMES. TRAVELERS SHOULD BE PREPARED FOR RAPID AND DRASTIC CHANGES IN CONDITIONS AS THEY TRAVEL UP HIGHER RIDGETOPS...WHERE SNOW COULD BE HEAVY AT TIMES. THIS INCLUDES TRAVEL ALONG HIGHWAY 212 AND INTERSTATE 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ HTTP://WEATHER.GOV/BILLINGS
229 WWUS45 KBYZ 282143 WSWBYZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BILLINGS MT 343 PM MDT SAT APR 28 2012 .A SPRING STORM SYSTEM WILL BRING HEAVY SNOW AND GUSTY WINDS TO THE CRAZY MOUNTAINS THROUGH TODAY...AND THE BEARTOOTH...ABSAROKA AND BIG HORN MOUNTAINS THROUGH TONIGHT. ACCUMULATING SNOW WILL ALSO AFFECT TRAVEL ON HIGHER RIDGETOPS OVER PARTS OF SOUTH CENTRAL AND SOUTHEAST MONTANA...AND SHERIDAN COUNTY WYOMING THROUGH TONIGHT. WYZ098-291200- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ NORTHEAST BIG HORN MOUNTAINS- INCLUDING THE LOCATIONS OF...BURGESS JCT 343 PM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH EARLY SUNDAY MORNING. * SNOW ACCUMULATION...11 INCHES OF SNOW HAS ALREADY FALLEN. AN ADDITIONAL 3 TO 5 INCHES OF SNOW WILL FALL OVERNIGHT...BRINGING THE STORM TOTALS TO BETWEEN 14 AND 18 INCHES. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. ROADS WILL BE SNOW COVERED AND SLIPPERY... CREATING DANGEROUS DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ068-290000- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T0000Z/ CRAZY MOUNTAINS- 343 PM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH LATE THIS AFTERNOON. THE SNOW WILL BEGIN TO TAPER OFF BY EARLY EVENING. * SNOW ACCUMULATION...21 INCHES OF SNOW WAS REPORTED AT THE SOUTH FORK OF THE SHIELDS RIVER TODAY. AN ADDITIONAL 3 TO 6 INCHES OF SNOW WILL FALL OVER THE CRAZY MOUNTAINS TODAY. THIS WILL RESULT IN STORM TOTAL ACCUMULATIONS OF 24 TO 28 INCHES. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...ANYONE IN THE HIGH COUNTRY SHOULD BE PREPARED FOR HEAVY SNOW...GUSTY WINDS AND CONSIDERABLE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ067-291200- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ ABSAROKA/BEARTOOTH MOUNTAINS- INCLUDING THE LOCATIONS OF...COOKE CITY 343 PM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY FOR THE MOUNTAINS ABOVE COOKE CITY. * TIMING...MODERATE TO HEAVY SNOW WILL CONTINUE OVERNIGHT INTO EARLY SUNDAY MORNING. * SNOW ACCUMULATION...12 TO 16 INCHES IS EXPECTED BY EARLY SUNDAY MORNING. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ037-291200- /O.EXA.KBYZ.WW.Y.0015.000000T0000Z-120429T1200Z/ CARTER- INCLUDING THE LOCATIONS OF...HAMMOND 343 PM MDT SAT APR 28 2012 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT SUNDAY ABOVE 3500 FEET... THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER WEATHER ADVISORY ABOVE 3500 FEET FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF MODERATE SNOW WILL DEVELOP TONIGHT. * SNOW ACCUMULATION...3 TO 7 INCHES. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED...AND ROADS WILL BE SLUSH OR SNOW COVERED AND SLIPPERY AT TIMES. TRAVELERS SHOULD BE PREPARED FOR RAPID AND DRASTIC CHANGES IN CONDITIONS AS THEY TRAVEL UP HIGHER RIDGETOPS...WHERE SNOW COULD BE HEAVY AT TIMES. THIS INCLUDES TRAVEL ALONG HIGHWAY 212 AND INTERSTATE 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ036-038-058-291200- /O.CON.KBYZ.WW.Y.0015.000000T0000Z-120429T1200Z/ POWDER RIVER-SOUTHERN BIG HORN-SOUTHERN ROSEBUD- INCLUDING THE LOCATIONS OF...SONNETTE...PRYOR...WYOLA... FORT SMITH 343 PM MDT SAT APR 28 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY ABOVE 3500 FEET... A WINTER WEATHER ADVISORY ABOVE 3500 FEET FOR SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF MODERATE SNOW WILL OCCUR TONIGHT. * SNOW ACCUMULATION...3 TO 7 INCHES. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED...AND ROADS WILL BE SLUSH OR SNOW COVERED AND SLIPPERY AT TIMES. TRAVELERS SHOULD BE PREPARED FOR RAPID AND DRASTIC CHANGES IN CONDITIONS AS THEY TRAVEL UP HIGHER RIDGETOPS...WHERE SNOW COULD BE HEAVY AT TIMES. THIS INCLUDES TRAVEL ALONG HIGHWAY 212 AND INTERSTATE 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ099-291200- /O.CON.KBYZ.WW.Y.0015.000000T0000Z-120429T1200Z/ SHERIDAN FOOTHILLS- INCLUDING THE LOCATIONS OF...BIG HORN...STORY 343 PM MDT SAT APR 28 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY ABOVE 4000 FEET... A WINTER WEATHER ADVISORY ABOVE 4000 FEET FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF HEAVY SNOW WILL DEVELOP TONIGHT. * SNOW ACCUMULATION...3 TO 7 INCHES. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED...AND ROADS WILL BE SLUSH OR SNOW COVERED AND SLIPPERY AT TIMES. TRAVELERS SHOULD BE PREPARED FOR RAPID AND DRASTIC CHANGES IN CONDITIONS AS THEY TRAVEL UP HIGHER RIDGETOPS...WHERE SNOW COULD BE HEAVY AT TIMES. THIS INCLUDES TRAVEL ALONG HIGHWAY 212 AND INTERSTATE 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ HTTP://WEATHER.GOV/BILLINGS
628 WWUS45 KBYZ 290005 WSWBYZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BILLINGS MT 605 PM MDT SAT APR 28 2012 .A SPRING STORM SYSTEM WILL BRING PERIODS OF HEAVY SNOW AND STRONG GUSTY WINDS TO AREA MOUNTAINS THROUGH TONIGHT. ACCUMULATING SNOW WILL ALSO AFFECT TRAVEL ON HIGHER RIDGE TOPS OVER PARTS OF SOUTH CENTRAL AND SOUTHEAST MONTANA...AND SHERIDAN COUNTY WYOMING TONIGHT. MTZ068-291200- /O.EXT.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ CRAZY MOUNTAINS- 605 PM MDT SAT APR 28 2012 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 AM MDT SUNDAY... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL CONTINUE TONIGHT...DECREASING BY SUNRISE SUNDAY. * SNOW ACCUMULATION...21 INCHES OF SNOW WAS REPORTED AT THE SOUTHFORK OF THE SHIELDS RIVER TODAY. AN ADDITIONAL 3 TO 6 INCHES OF SNOW WILL FALL OVER THE CRAZY MOUNTAINS TONIGHT. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH THIS EVENING...GRADUALLY DECREASING LATE TONIGHT. * IMPACTS...ANYONE IN THE HIGH COUNTRY SHOULD BE PREPARED FOR HEAVY SNOW...AND CONSIDERABLE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ098-291200- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ NORTHEAST BIG HORN MOUNTAINS- INCLUDING THE LOCATIONS OF...BURGESS JCT 605 PM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH EARLY SUNDAY MORNING. * SNOW ACCUMULATION...NEARLY A FOOT OF SNOW HAS FALLEN OVER PARTS OF THE BIG HORN MOUNTAINS. AN ADDITIONAL 3 TO 6 INCHES OF SNOW IS EXPECTED OVERNIGHT...BRINGING THE STORM TOTALS TO BETWEEN 14 AND 18 INCHES. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. ROADS WILL BE SNOW COVERED AND SLICK... CREATING DANGEROUS DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ067-291200- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ ABSAROKA/BEARTOOTH MOUNTAINS- INCLUDING THE LOCATIONS OF...COOKE CITY 605 PM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY... A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...MODERATE TO HEAVY SNOW WILL CONTINUE OVERNIGHT INTO EARLY SUNDAY MORNING. * SNOW ACCUMULATION...12 TO 16 INCHES IS EXPECTED BY EARLY SUNDAY MORNING...THE HEAVIEST ON NORTHWEST FACING SLOPES. * WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ036>038-058-291200- /O.CON.KBYZ.WW.Y.0015.000000T0000Z-120429T1200Z/ POWDER RIVER-CARTER-SOUTHERN BIG HORN-SOUTHERN ROSEBUD- INCLUDING THE LOCATIONS OF...SONNETTE...HAMMOND...PRYOR...WYOLA... FORT SMITH 605 PM MDT SAT APR 28 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY ABOVE 3500 FEET... A WINTER WEATHER ADVISORY ABOVE 3500 FEET FOR SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF MODERATE SNOW WILL OCCUR OVERNIGHT ON HIGHER RIDGES. * SNOW ACCUMULATION...3 TO 6 INCHES. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED...AND ROADS WILL BE SLUSHY AND SLIPPERY AT TIMES. TRAVELERS SHOULD BE PREPARED FOR RAPID AND DRASTIC CHANGES IN CONDITIONS AS THEY TRAVEL UP HIGHER RIDGE TOPS...WHERE SNOW COULD BE HEAVY AT TIMES. THIS INCLUDES TRAVEL ALONG HIGHWAY 212 AND INTERSTATE 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ099-291200- /O.CON.KBYZ.WW.Y.0015.000000T0000Z-120429T1200Z/ SHERIDAN FOOTHILLS- INCLUDING THE LOCATIONS OF...BIG HORN...STORY 605 PM MDT SAT APR 28 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY ABOVE 4000 FEET... A WINTER WEATHER ADVISORY ABOVE 4000 FEET FOR SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF MODERATE SNOW WILL DEVELOP TONIGHT. * SNOW ACCUMULATION...3 TO 6 INCHES. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED...AND ROADS WILL BE SLUSHY AND SLIPPERY AT TIMES. TRAVELERS SHOULD BE PREPARED FOR RAPID AND DRASTIC CHANGES IN CONDITIONS AS THEY TRAVEL UP HIGHER RIDGE TOPS...WHERE SNOW COULD BE HEAVY AT TIMES. THIS INCLUDES TRAVEL ALONG INTERSTATE 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ HTTP://WEATHER.GOV/BILLINGS
314 WWUS45 KBYZ 290300 WSWBYZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BILLINGS MT 900 PM MDT SAT APR 28 2012 MTZ067-290400- /O.CAN.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ ABSAROKA/BEARTOOTH MOUNTAINS- INCLUDING THE LOCATIONS OF...COOKE CITY 900 PM MDT SAT APR 28 2012 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN BILLINGS HAS CANCELLED THE WINTER STORM WARNING. A FEW MORE INCHES OF LOCAL ACCUMULATION IS POSSIBLE OVERNIGHT ON NORTH FACING SLOPES...BUT THE THREAT OF HEAVY SNOW AND STRONG WIND HAS DECREASED. $$ WYZ098-291200- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ NORTHEAST BIG HORN MOUNTAINS- INCLUDING THE LOCATIONS OF...BURGESS JCT 900 PM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF MODERATE SNOW WILL CONTINUE THROUGH EARLY SUNDAY MORNING. * SNOW ACCUMULATION...NEARLY A FOOT OF SNOW HAS FALLEN OVER PARTS OF THE BIG HORN MOUNTAINS. AN ADDITIONAL 3 TO 5 INCHES OF SNOW IS EXPECTED OVERNIGHT...BRINGING THE STORM TOTALS TO BETWEEN 14 AND 18 INCHES. * WINDS...NORTHWEST WINDS OF 15 TO 25 MPH WITH OCCASIONAL GUSTS TO 35 MPH WILL CAUSE BLOWING AND DRIFTING SNOW. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED IN FALLING AND BLOWING SNOW. ROADS WILL BE SNOW COVERED AND SLICK... CREATING DANGEROUS DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ068-291200- /O.CON.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ CRAZY MOUNTAINS- 900 PM MDT SAT APR 28 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY... A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF MODERATE SNOW WILL CONTINUE TONIGHT...DECREASING BY SUNRISE SUNDAY. * SNOW ACCUMULATION...21 INCHES OF SNOW WAS REPORTED AT THE SOUTHFORK OF THE SHIELDS RIVER TODAY. AN ADDITIONAL 3 TO 6 INCHES OF SNOW WILL FALL OVER THE CRAZY MOUNTAINS TONIGHT. * WINDS...NORTHWEST WINDS OF 15 TO 25 MPH WITH OCCASIONAL GUSTS TO 35 MPH THIS EVENING...GRADUALLY DECREASING LATE TONIGHT. * IMPACTS...ANYONE IN THE HIGH COUNTRY SHOULD BE PREPARED FOR SNOW WITH BLOWING AND DRIFTING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ036>038-058-291200- /O.CON.KBYZ.WW.Y.0015.000000T0000Z-120429T1200Z/ POWDER RIVER-CARTER-SOUTHERN BIG HORN-SOUTHERN ROSEBUD- INCLUDING THE LOCATIONS OF...SONNETTE...HAMMOND...PRYOR...WYOLA... FORT SMITH 900 PM MDT SAT APR 28 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY ABOVE 3500 FEET... A WINTER WEATHER ADVISORY ABOVE 3500 FEET FOR SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF SNOW WILL OCCUR OVERNIGHT ON HIGHER RIDGES. * SNOW ACCUMULATION...2 TO 4 INCHES ON HIGHER RIDGE TOPS. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED...AND ROADS WILL BE SLUSHY AND SLICK AT TIMES. TRAVELERS SHOULD BE PREPARED FOR RAPID CHANGES IN CONDITIONS AS THEY TRAVEL UP HIGHER RIDGE TOPS...WHERE SNOW COULD BE HEAVY AT TIMES. THIS INCLUDES TRAVEL ALONG HIGHWAY 212 AND INTERSTATE 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ099-291200- /O.CON.KBYZ.WW.Y.0015.000000T0000Z-120429T1200Z/ SHERIDAN FOOTHILLS- INCLUDING THE LOCATIONS OF...BIG HORN...STORY 900 PM MDT SAT APR 28 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY ABOVE 4000 FEET... A WINTER WEATHER ADVISORY ABOVE 4000 FEET FOR SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY. * TIMING...PERIODS OF SNOW WILL DEVELOP TONIGHT. * SNOW ACCUMULATION...2 TO 4 INCHES OVER HIGHER RIDGE TOPS. * IMPACTS...VISIBILITY WILL BE SIGNIFICANTLY REDUCED...AND ROADS WILL BE SLUSHY AT TIMES. TRAVELERS SHOULD BE PREPARED FOR RAPID CHANGES IN CONDITIONS AS THEY TRAVEL UP HIGHER RIDGE TOPS...WHERE SNOW COULD BE HEAVY AT TIMES. THIS INCLUDES TRAVEL ALONG INTERSTATE 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ HTTP://WEATHER.GOV/BILLINGS
773 WWUS45 KBYZ 290955 WSWBYZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BILLINGS MT 355 AM MDT SUN APR 29 2012 MTZ068-WYZ098-291100- /O.CAN.KBYZ.WS.W.0007.000000T0000Z-120429T1200Z/ CRAZY MOUNTAINS-NORTHEAST BIG HORN MOUNTAINS- INCLUDING THE LOCATIONS OF...BURGESS JCT 355 AM MDT SUN APR 29 2012 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN BILLINGS HAS CANCELLED THE WINTER STORM WARNING. ANOTHER INCH OR TWO OF SNOW WILL FALL THIS MORNING...BUT THE SNOW WILL NOT BE HEAVY. $$ MTZ036>038-058-WYZ099-291100- /O.CAN.KBYZ.WW.Y.0015.000000T0000Z-120429T1200Z/ POWDER RIVER-CARTER-SOUTHERN BIG HORN-SOUTHERN ROSEBUD- SHERIDAN FOOTHILLS- INCLUDING THE LOCATIONS OF...SONNETTE...HAMMOND...PRYOR...WYOLA... FORT SMITH...BIG HORN...STORY 355 AM MDT SUN APR 29 2012 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN BILLINGS HAS CANCELLED THE WINTER WEATHER ADVISORY. AN INCH OR TWO OF SNOW MAY FALL ON SOME OF THE HIGHER RIDGES OVER THE AREA THIS MORNING...BUT IT WILL QUICKLY MELT AFTER SUNRISE. $$ HTTP://WEATHER.GOV/BILLINGS CJS
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 Billings, MT wrote its last area forecast discussion before this winter storm warning went out at Apr 27, 9:22 AM MDT, 4 hours 32 minutes earlier.
Area forecast discussion, Apr 27, 9:22 AM MDT, 4 hours 32 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
922 AM MDT FRI APR 27 2012
.SHORT TERM...VALID FOR TDY AND SAT...
FORECAST IS IN GOOD SHAPE TODAY AND HAVE ONLY MADE SOME MINOR
CHANGES. DID INCREASE POPS OVER OUR SOUTHEAST ZONES TODAY AS
PRECIPITATION HAS BEEN FILLING IN ALONG INVERTED SURFACE TROUGH
FROM ALZADA TO HARLOWTON. INCREASED SNOW AMOUNTS OVER THE CRAZY
MOUNTAINS THIS MORNING TO 6 INCHES AS GOOD MOIST UPSLOPE FLOW
WILL CONTINUE. WATER VAPOR SATELLITE IS SHOWING DRIER AIR TO WARP
UP INTO OUR AREA BY LATE MORNING ALONG WITH INCREASING DOWN SLOPE
WINDS. WILL KEEP SNOW AMOUNTS BELOW WARNING CRITERIA BASE ON THE
ABOVE FACTORS. DID RAISE TEMPERATURES A FEW DEGREES OVER THE
SOUTHEAST ZONES BASED ON CURRENT READINGS.
WILL BE LOOKING AT SNOW POTENTIAL OVER THE NORTHEAST BIG HORN
MOUNTAINS AND OVER SOUTHEAST MONTANA WITH THE AFTERNOON FORECAST
PACKAGE. RICHMOND
PREVIOUS DISCUSSION...
CONFIDENCE IN A SIGNIFICANT PRECIPITATION EVENT OVER THE AREA FROM
TODAY RIGHT INTO THE WEEKEND CONTINUES TO INCREASE...BUT PLENTY OF
UNCERTAINTY STILL EXISTS WITH REGARD TO THE DETAILS. AT 10 UTC...A
SURFACE LOW IS JUST EAST OF BILLINGS...AND MOISTURE CHANNEL IMAGES
AND RUC-BASED OBJECTIVE ANALYSIS SHOW AN UPSTREAM PV ANOMALY ALONG
WITH RELATIVELY SIGNIFICANT DRYING ALOFT IN SOUTHERN ID. IT/S THAT
TROUGH THAT IS EXPECTED TO FORM A CLOSED 500-HPA LOW OVER THE AREA
THIS WEEKEND PER A STRONG CONSENSUS OF MODEL SOLUTIONS. WINDS OVER
SOUTHEASTERN MT HAVE BEEN DIMINISHING AS THE TROUGH HEADS EAST AND
SO WE HAVE DECIDED TO CANCEL THE HIGH WIND WARNING OVER CARTER AND
FALLON COUNTIES A FEW HOURS EARLY.
ONE OF THE PRIMARY DETAIL-ORIENTED POINTS OF CONTENTION DURING THE
NEXT FEW DAYS IS WHERE THAT CLOSED 500-HPA LOW BECOMES ESTABLISHED
IN A RELATIVELY COMPLEX HEIGHT PATTERN. THE 00 UTC GFS REMAINS ONE
OF THE MOST SOUTHERN SOLUTIONS WITH ITS MID-LEVEL LOW IN NORTHWEST
SD BY SAT. HOWEVER...WHAT IS OBVIOUS WHEN CONSIDERING MODEL TRENDS
OVER THE PAST 24 HOURS IS THAT ALMOST ALL OF THE SOLUTIONS HAVE IN
FACT MOVED THEIR FORECAST 500-HPA LOW AT LEAST A BIT FURTHER SOUTH
DURING THE PERIOD. THAT IN AND OF ITSELF MEANS THAT THE GFS MAY BE
LEADING THE PACK ON THIS...BUT REALISTICALLY-SPEAKING THE MODEL IS
STILL IN THE MINORITY /ALBEIT WITH SOME ENSEMBLE SUPPORT/...SO OUR
FORECAST IS STILL NOT WEIGHTED TOO HEAVILY IN THAT DIRECTION. EVEN
SO...GUIDANCE SPREAD HAS NARROWED ENOUGH THAT WE DECIDED TO ADJUST
DETAILS OF THE GRIDDED FORECAST TO A COLDER AND WETTER SCENARIO IN
SEVERAL AREAS.
TODAY...NOTABLE LOW- AND MID-LEVEL FRONTOGENESIS WILL SHIFT ACROSS
THE AREA...WITH 500-300 HPA Q-VECTOR CONVERGENCE DOWNSTREAM OF THE
1.5 PVU ANOMALY AIDING IN VERTICAL MOTION TOO. IT APPEARS THAT THE
FRONTOGENETICALLY-INDUCED FORCING PERSISTS LONGEST IN SOUTHEASTERN
MT. WE ARE THUS CARRYING POPS AT 100 PERCENT IN THOSE AREAS...EVEN
THOUGH THE BAROCLINIC ZONE ACTUALLY OUTRUNS THE BETTER QG FORCING.
THAT IS BECAUSE IT APPEARS THE WARM AIR ADVECTION-INDUCED MOISTURE
OVER THE NORTHERN PLAINS WILL BE ABLE TO TRANSLATE NORTHWEST RIGHT
INTO SOUTHEASTERN MT DURING THE DAY. MEANWHILE...BACK ACROSS SOUTH
CENTRAL MT...AFTER THE BAROCLINIC ZONE PASSES THIS MORNING...THERE
IS A DISTINCT CHANCE THAT LOW-LEVEL DOWNSLOPE FLOW WILL BECOME THE
DOMINANT INFLUENCE. THUS...WHILE WE HAVE HIGH CONFIDENCE IN SHOWER
ACTIVITY BEFORE 18 UTC FOR PLACES LIKE BILLINGS AS EVEN THE 06 UTC
HRRR SHOWS...POPS FOR THE AFTERNOON HAVE ACTUALLY BEEN REDUCED AND
ARE NOW IN THE CHANCE CATEGORY.
TONIGHT INTO SAT...NORTHWEST FLOW WILL BECOME ESTABLISHED AND LEAD
TO OROGRAPHICALLY-AIDED PRECIPITATION OVER THE MOUNTAINS. IT LOOKS
LIKE THE NORTHEASTERN BIG HORN MOUNTAINS WILL BE IMPACTED THE MOST
BY THIS SETUP...WITH MODEL SOLUTIONS EVEN SHOWING PRETTY GOOD LIFT
WITHIN THE DENDRITIC SNOW GROWTH ZONE AT TIMES INTO SAT NIGHT OVER
THAT AREA. WE HAVE DECIDED TO HOIST A WINTER STORM WATCH BEGINNING
AT 06 UTC TONIGHT FOR THE BIG HORN RANGE...AND CONTINUING UNTIL 12
UTC SUN. THERE WILL BE ENOUGH QPF FOR WARNING CRITERIA SNOW ACROSS
THE RANGE...BUT SNOW-TO-LIQUID RATIOS ARE A BIT QUESTIONABLE. THUS
THE WATCH IS APPROPRIATE FOR NOW. CONFIDENCE IN THE WATCH OVER THE
BIG HORNS WAS HELPED BY ITS LOCATION IN THE VICINITY OF THE TROWAL
OR DEFORMATION BAND OF PRECIPITATION THAT IS EXPECTED TO SET UP BY
SAT SOMEWHERE OVER SOUTH CENTRAL AND SOUTHEASTERN MT. A CLUSTERING
OF MODEL PRECIPITATION FIELDS AND CIPS ANALOG OUTPUT SUGGESTS THAT
AREA WILL BE ROUGHLY BETWEEN MILES CITY AND BILLINGS. THOSE ANALOG
RUNS ALSO CALL FOR 0.50 TO 0.75 INCHES OF MOISTURE...SO WE DO HAVE
CONFIDENCE IN GETTING AT LEAST THAT MUCH MOISTURE WITH THIS EVENT.
A FINAL...BUT POTENTIALLY BIG FORECAST PROBLEM IS THE POTENTIAL OF
LOWER-ELEVATION SNOW WITHIN THE TROWAL AND DEFORMATION BAND. THERE
IS A BIT OF A TREND TOWARD COLDER 850-HPA TEMPERATURES BY SAT SEEN
IN GUIDANCE...AND SOME OF IT IS ADVECTED INTO THE REGION...AND NOT
JUST DYNAMICALLY-INDUCED. HOWEVER...THE POTENTIAL FOR ACCUMULATING
SNOW ON THE PLAINS IS STILL A RELATIVELY LOW ONE GIVEN THE OVERALL
MARGINAL THERMAL PROFILES...SO AT THIS POINT WE ARE NOT MAKING TOO
BIG A DEAL OF THE POSSIBILITY...EVEN THOUGH IT REQUIRES SOME CLOSE
MONITORING AND DIAGNOSIS AS WE GO FORWARD. SCHULTZ
.LONG TERM...VALID FOR SUN...MON...TUE...WED...THU...
FILLING UPPER LOW WILL LINGER OVER THE EASTERN HALF OF THE AREA
EARLY SUNDAY BEFORE LIFTING NORTHEAST IN THE AFTERNOON. RAISED
POPS FOR CENTRAL AND EASTERN ZONES FOR THIS. MONDAY LOOKS LIKE A
MAINLY DRY DAY BEFORE THE NEXT PRECIPITATION CHANCE MOVES IN.
MODELS DIFFER ON THE STRENGTH AND SPEED OF THE TROUGH FOR
TUESDAY. THE GFS WAS QUICKER AND DEEPER WITH IT...WHILE THE ECMWF
WAS MORE BROAD WITH THE TROUGH OVER THE NORTHWEST AND NORTH
CENTRAL PARTS OF THE COUNTY. WILL KEEP THE FORECAST UNSETTLED
TUESDAY INTO WEDNESDAY. DID NOT MAKE SIGNIFICANT CHANGES FOR
THURSDAY AND FRIDAY AS THERE WERE PRETTY BIG DIFFERENCES BETWEEN
THE GFS AND ECMWF. THE GFS WAS WARMER WITH AN AMPLIFYING RIDGE
MOVING IN. THE ECMWF WAS COOLER WITH A DEEPENING UPPER TROUGH
MOVING INTO THE PACIFIC NORTHWEST. OVERALL...LOOKS DRY FOR BOTH
SOLUTIONS BUT THE GFS WOULD BE WARMER. DID COOL THINGS FOR EARLY
IN THE EXTENDED PACKAGE...THE SUNDAY AND MONDAY TIME FRAME...WITH
THE UPPER LOW KICKING EAST SLOWLY AND HEIGHTS REMAINING ON THE
LOW SIDE. TWH
&&
.AVIATION...
STRONG WEST TO NORTHWEST WINDS WILL CONTINUE ACROSS WESTERN AND
CENTRAL ROUTES AND WILL SPREAD INTO FAR EASTERN MONTANA BY EARLY
AFTERNOON. EXPECT GUSTS GREATER THAN 35 KTS AT
KLVM...KBIL...KSHR...AND KMLS THROUGH THIS EVENING. RAIN/SHOWERS
WILL CONTINUE ACROSS MUCH OF THE REGION THROUGH THE PERIOD.
OCCASIONAL MVFR CONDITIONS...WITH PATCHY IFR CONDITIONS...ARE
LIKELY THROUGH TONIGHT DUE TO LOW CEILINGS AND REDUCED VISIBILITY
IN THE RAIN. SOME SNOW MAY MIX IN WITH THE RAIN OVERNIGHT. THE
MOUNTAINS WILL BE OBSCURED WITH OCCASIONAL MODERATE TO HEAVY SNOW
SHOWERS. STC
&&
.PRELIMINARY POINT TEMP/POPS...
TDY SAT SUN MON TUE WED THU
-------------------------------------------------------
BIL 052 038/045 035/055 039/064 045/064 042/064 043/068
+/W 67/R 65/W 12/W 34/W 21/B 11/B
LVM 048 034/041 028/053 033/059 037/061 035/059 036/064
7/W 66/R 43/W 23/W 34/W 22/W 12/W
HDN 054 037/044 034/057 037/067 043/066 041/066 040/070
9/W 68/R 66/W 11/B 24/W 31/B 11/B
MLS 053 039/045 036/054 038/067 045/066 043/067 043/070
+/W 68/R 65/W 21/B 23/W 21/B 11/B
4BQ 057 036/044 033/055 036/066 043/067 041/066 041/069
9/W 58/R 66/W 11/B 24/W 21/B 11/B
BHK 051 036/045 033/052 036/064 042/064 040/064 040/067
+/W 66/R 54/W 21/B 22/W 21/B 11/B
SHR 055 034/042 030/053 034/063 040/064 038/062 039/068
7/W 47/R 44/W 11/B 23/W 41/B 11/B
&&
.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...NONE.
WY...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE
SATURDAY NIGHT FOR ZONE 98.
&&
WEATHER.GOV/BILLINGSHazardous weather outlook, Apr 27, 4:36 AM MDT, 9 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BILLINGS MT 436 AM MDT FRI APR 27 2012 MTZ028>042-056>058-063>068-WYZ098-099-281045- SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER- FALLON-NORTHERN STILLWATER-YELLOWSTONE-POWDER RIVER-CARTER- SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK- NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS- NORTHERN BIG HORN-SOUTHERN ROSEBUD-JUDITH GAP-PARADISE VALLEY- LIVINGSTON AREA-BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS- CRAZY MOUNTAINS-NORTHEAST BIG HORN MOUNTAINS-SHERIDAN FOOTHILLS- 436 AM MDT FRI APR 27 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA...SOUTH CENTRAL MONTANA...SOUTHEAST MONTANA AND NORTH CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT THE NORTHEAST BIG HORN MOUNTAINS COULD HAVE MODERATE TO HEAVY SNOW BEGINNING LATE TONIGHT AS A SPRING STORM SYSTEM BEGINS INFLUENCING THE AREA. THAT SAME SYSTEM WILL PRODUCE ACCUMULATING SNOW OVER THE OTHER MOUNTAINS IN THE AREA...AND RESULT IN WIDESPREAD RAIN ACROSS THE PLAINS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY UP TO 16 INCHES OF SNOW COULD ACCUMULATE IN THE NORTHEAST BIG HORN MOUNTAINS BY LATE SATURDAY NIGHT. OTHER MOUNTAINS MAY ALSO RECEIVE SEVERAL INCHES OF ACCUMULATION. ANYONE WITH PLANS ACROSS THE HIGH COUNTRY SHOULD BE PREPARED FOR WINTER WEATHER CONDITIONS. IN THE LOWER ELEVATIONS...RAIN...AND MUCH COLDER AND WINDY WEATHER IS EXPECTED THIS WEEKEND. THE RAIN COULD MIX WITH OR POSSIBLY EVEN CHANGE TO SNOW BY SATURDAY NIGHT...ESPECIALLY ON HIGHER RIDGETOPS. RANCHERS SHOULD TAKE PRECAUTIONS TO PROTECT YOUNG LIVESTOCK DURING THE WET...COLD...AND WINDY WEATHER. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. CJS
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 6:29 PM MDT | High Wind Warning | BYZ | Carter, Fallon | 9 hr |
| Apr 27, 3:40 AM MDT | Winter Storm Watch | BYZ | 10 hr |
Nearby
Winter Storm Warnings in Montana, 2012Winter Storm Warnings in Wyoming, 2012Every winter storm warning in 2012
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.