Alert archive / Wyoming / Winter Storm Warnings in 2012
Winter Storm Warning 5, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter storm warning at Feb 21, 2012, 2:30 AM MST for Albany County, Carbon County, Wyoming. It took effect at Feb 21, 2012, 11:00 AM MST. It was in force for 41 hr. 17 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 21, 2012, 2:30 AM MST (09:30 UTC)
- In effect from
- Feb 21, 2012, 11:00 AM MST
- Expired
- Feb 23, 2012, 4:09 AM MST
- In force
- 41 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY
The radar
The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 09:32 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 22, 1:00 AM MST | SNOW 4.5 | 30 Wnw Laramie, WY | SAND LAKE SNOTEL. ELEVATION 10050 FEET. SWE 0.3 INCHES FROM 21/11AM TO 22/01AM. 15 TO 1 RATIO USED. |
| Feb 22, 1:00 AM MST | SNOW 6 | 14 E Dixon, WY | BATTLE MOUNTAIN SNOTEL. ELEVATION 7440 FEET. SWE 0.4 INCHES FROM 21/11AM TO 22/01AM. 15 TO 1 RATIO USED. |
| Feb 22, 1:00 AM MST | SNOW 7.5 | 19 Wsw Encampment, WY | DIVIDE PEAK SNOTEL. ELEVATION 8880 FEET. SWE 0.5 INCHES FROM 21/11AM TO 22/01AM. 15 TO 1 RATIO USED |
| Feb 22, 1:00 AM MST | SNOW 7.5 | 5 Sw Encampment, WY | WEBBER SPRINGS SNOTEL. ELEVATION 9250 FEET. SWE 0.5 INCHES FROM 21/11L TO 22/01L. 15 TO 1 RATIO USED. |
| Feb 22, 1:00 AM MST | SNOW 9 | 17 Sw Encampment, WY | SANDSTONE RANGER STATION SNOTEL. ELEVATION 8150 FEET. SWE 0.6 INCHES FROM 21/11AM TO 22/01AM. 15 TO 1 RATIO USED. |
| Feb 22, 1:00 AM MST | SNOW 10.5 | 7 Nw Centennial, WY | BROOKLYN LAKE SNOTEL. ELEVATION 10240 FEET.SWE 0.7 INCHES FROM 21/11AM TO 22/01AM.15 TO 1 RATIO USED. |
| Feb 22, 1:00 AM MST | HEAVY SNOW 13.5 | 6 Sw Centennial, WY | CINNABAR SNOTEL. ELEVATION 9574 FEET. SWE 0.9 INCHES FROM 21/11AM TO 22/01AM. 15 TO 1 RATIO USED. |
| Feb 22, 1:00 AM MST | HEAVY SNOW 15 | 11 Sse Encampment, WY | BLACKHALL MOUNTAIN SNOTEL. ELEVATION 9820 FEET. SWE 1.1 INCHES FROM 21/00L TO 22/00L. 15 TO 1 RATIO USED. |
| Feb 22, 1:00 AM MST | HEAVY SNOW 21 | 10 E Baggs, WY | WHISKEY PARK SNOTEL. ELEVATION 8950 FEET. SWE 1.4 INCHES FROM 21/11AM TO 22/01AM. 15 TO 1 RATIO USED. |
| Feb 22, 1:00 AM MST | HEAVY SNOW 24 | 10 Sw Encampment, WY | LITTLE SNAKE RIVER SNOTEL. ELEVATION 8915 FEET. SWE 1.6 INCHES FROM 21/00L TO 22/00L. 15 TO 1 RATIO USED. |
| Feb 23, 2:00 AM MST | HEAVY SNOW 13.5 | 30 Wnw Laramie, WY | SAND LAKE SNOTEL. ELEVATION 10130 FEET. SWE 0.9 INCHES FROM 21/11 AM TO 23/02 AM. 15 TO 1 RATIO USED. |
| Feb 23, 2:00 AM MST | HEAVY SNOW 13.5 | 5 Sw Encampment, WY | WEBBER SPRINGS SNOTEL. ELEVATION 9250 FEET. SWE 0.9 INCHES FROM 21/11 AM TO 23/02 AM. 15 TO 1 RATIO USED. |
| Feb 23, 2:00 AM MST | HEAVY SNOW 22.5 | 6 Sw Centennial, WY | CINNABAR SNOTEL. ELEVATION 9574 FEET. SWE 1.5 INCHES FROM 21/11 AM TO 23/02 AM. 15 TO 1 RATIO USED. |
| Feb 23, 2:00 AM MST | HEAVY SNOW 25.5 | 11 Sse Encampment, WY | BLACKHALL MOUNTAIN SNOTEL. ELEVATION 9820 FEET. SWE 1.7 INCHES FROM 21/00L TO 23/00L. 15 TO 1 RATIO USED. |
| Feb 23, 2:00 AM MST | HEAVY SNOW 27 | 10 E Baggs, WY | WHISKEY PARK SNOTEL. ELEVATION 8950 FEET. SWE 1.8 INCHES FROM 21/11 AM TO 23/02 AM. 15 TO 1 RATIO USED. |
| Feb 23, 2:00 AM MST | HEAVY SNOW 30 | 10 Sw Encampment, WY | LITTLE SNAKE RIVER SNOTEL. ELEVATION 8915 FEET. SWE 2.0 INCHES FROM 21/00L TO 23/00L. 15 TO 1 RATIO USED. |
| Feb 23, 2:00 AM MST | HEAVY SNOW 36 | 7 Nw Centennial, WY | BROOKLYN LAKE SNOTEL. ELEVATION 10240 FEET. SWE 2.4 INCHES FROM 21/11 AM TO 23/02 AM. 15 TO 1 RATIO USED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 9.5 hours before the alert went out and 230 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
- 2021 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
826 WWUS45 KCYS 210930 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 230 AM MST TUE FEB 21 2012 ...SNOW AND STRONG WINDS WILL AFFECT THE SIERRA MADRE AND SNOWY RANGE MOUNTAINS THIS AFTERNOON THROUGH THURSDAY MORNING... .MOIST NORTHWEST FLOW WILL CONTINUE OVER THE MOUNTAINS OF SOUTHEAST WYOMING THROUGH THURSDAY MORNING. SNOWFALL WILL BEGIN TO INCREASE IN INTENSITY THIS AFTERNOON. IN ADDITION...WESTERLY TO NORTHWESTERLY WINDS WILL BEGIN TO STRENGTHEN BY TONIGHT AS THE SURFACE PRESSURE GRADIENT INCREASES. THE COMBINATION OF SNOW AND STRONG WINDS WILL PRODUCE HAZARDOUS TRAVEL CONDITIONS IN THE MOUNTAINS THROUGH THURSDAY MORNING. WYZ112-114-220000- /O.NEW.KCYS.WS.W.0005.120221T1800Z-120223T1200Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 230 AM MST TUE FEB 21 2012 ...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 5 AM MST THURSDAY. * TIMING...11 AM MST TUESDAY THROUGH 5 AM MST THURSDAY. * TOTAL SNOW ACCUMULATIONS...9 TO 12 INCHES WITH LOCALLY HIGHER AMOUNTS ON THE WEST AND NORTHWEST FACING SLOPES. * WINDS/VISIBILITIES...WEST WINDS AT 35 TO 45 MPH WITH GUSTS TO 55 MPH THROUGH TUESDAY NIGHT. THEN WINDS WILL STRENGTHEN TO 45 TO 55 MPH WITH GUSTS TO 75 MPH ON WEDNESDAY. THE WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW...CREATING NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS AS ROADS BECOME SNOW COVERED AND SLIPPERY AND VISIBILITIES ARE REDUCED. OUTDOOR ENTHUSIASTS CAN QUICKLY BECOME DISORIENTED AND LOST IN THESE HAZARDOUS WINTER CONDITIONS. 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 TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ FINCH
5 follow-up statements
968 WWUS45 KCYS 212148 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 248 PM MST TUE FEB 21 2012 ...SNOW AND STRONG WINDS WILL CONTINUE TO AFFECT THE SIERRA MADRE AND SNOWY RANGE MOUNTAINS THROUGH THURSDAY MORNING... .MOIST NORTHWEST FLOW WILL CONTINUE OVER THE MOUNTAINS OF SOUTHEAST WYOMING THROUGH THURSDAY MORNING. THIS WIND FLOW WILL RIDE UP THE MOUNTAINS AND PRODUCE PERIODS OF SNOW THROUGH EARLY THURSDAY MORNING. IN ADDITION...WEST TO NORTHWEST WINDS WILL BE RATHER STRONG ESPECIALLY TONIGHT AND WEDNESDAY. THE COMBINATION OF SNOW AND STRONG WINDS WILL PRODUCE HAZARDOUS CONDITIONS IN THE MOUNTAINS THROUGH THURSDAY MORNING. WYZ112-114-221200- /O.CON.KCYS.WS.W.0005.000000T0000Z-120223T1200Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 248 PM MST TUE FEB 21 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * TIMING...UNTIL 5 AM MST THURSDAY. * TOTAL SNOW ACCUMULATIONS...9 TO 12 INCHES WITH LOCALLY HIGHER AMOUNTS ON THE WEST AND NORTHWEST FACING SLOPES. * WINDS/VISIBILITIES...WEST WINDS AT 35 TO 45 MPH WITH GUSTS TO 55 MPH THROUGH WEDNESDAY MORNING. THEN WINDS WILL STRENGTHEN TO 45 TO 55 MPH WITH GUSTS TO 70 MPH ON WEDNESDAY. THE WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW...CREATING NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS AS ROADS BECOME SNOW COVERED AND SLIPPERY AND VISIBILITIES ARE REDUCED. OUTDOOR ENTHUSIASTS CAN QUICKLY BECOME DISORIENTED AND LOST IN THESE HAZARDOUS WINTER CONDITIONS. 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 TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$
015 WWUS45 KCYS 220950 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 250 AM MST WED FEB 22 2012 ...SNOW AND STRONG WINDS WILL CONTINUE TO AFFECT THE SIERRA MADRE AND SNOWY RANGE MOUNTAINS THROUGH THURSDAY MORNING... .MOIST NORTHWEST FLOW WILL CONTINUE OVER THE MOUNTAINS OF SOUTHEAST WYOMING THROUGH THURSDAY MORNING. THIS WIND FLOW WILL RIDE UP THE MOUNTAINS AND PRODUCE PERIODS OF SNOW THROUGH EARLY THURSDAY MORNING. IN ADDITION...WEST TO NORTHWEST WINDS WILL BE STRONG THROUGH THIS EVENING. THE COMBINATION OF SNOW AND STRONG WINDS WILL PRODUCE HAZARDOUS CONDITIONS IN THE MOUNTAINS THROUGH THURSDAY MORNING. WYZ112-114-230000- /O.CON.KCYS.WS.W.0005.000000T0000Z-120223T1200Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 250 AM MST WED FEB 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * TIMING...UNTIL 5 AM MST THURSDAY. * TOTAL SNOW ACCUMULATIONS...AN ADDITIONAL 6 TO 9 INCHES THROUGH THURSDAY MORNING WITH LOCALLY HIGHER AMOUNTS ON THE WEST AND NORTHWEST FACING SLOPES. * WINDS/VISIBILITIES...SUSTAINED WEST WINDS AT 45 TO 55 MPH WITH GUSTS TO 75 MPH THROUGH THIS EVENING. THE WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW...CREATING NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS AS ROADS BECOME SNOW COVERED AND SLIPPERY AND VISIBILITIES ARE REDUCED. OUTDOOR ENTHUSIASTS CAN QUICKLY BECOME DISORIENTED AND LOST IN THESE HAZARDOUS WINTER CONDITIONS. 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 TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ FINCH
237 WWUS45 KCYS 222342 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 442 PM MST WED FEB 22 2012 ...SNOW AND STRONG WINDS WILL CONTINUE TO AFFECT THE SIERRA MADRE AND SNOWY RANGE MOUNTAINS THROUGH THURSDAY MORNING... .MOIST NORTHWEST FLOW WILL CONTINUE OVER THE MOUNTAINS OF SOUTHEAST WYOMING THROUGH THURSDAY MORNING. THIS WIND FLOW WILL RIDE UP THE MOUNTAINS AND PRODUCE PERIODS OF SNOW THROUGH EARLY THURSDAY MORNING. IN ADDITION...WEST TO NORTHWEST WINDS WILL BE STRONG THROUGH THIS EVENING. THE COMBINATION OF SNOW AND STRONG WINDS WILL PRODUCE HAZARDOUS CONDITIONS IN THE MOUNTAINS THROUGH THURSDAY MORNING. WYZ112-114-231200- /O.CON.KCYS.WS.W.0005.000000T0000Z-120223T1200Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 442 PM MST WED FEB 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * TIMING...UNTIL 5 AM MST THURSDAY. * TOTAL SNOW ACCUMULATIONS...AN ADDITIONAL 4 TO 8 INCHES CAN BE EXPECTED THROUGH THURSDAY MORNING WITH LOCALLY HIGHER AMOUNTS ON THE WEST AND NORTHWEST FACING SLOPES. * WINDS/VISIBILITIES...SUSTAINED WEST WINDS AT 30 TO 40 MPH WITH GUSTS TO 65 MPH WILL CONTINUE THROUGH THIS EVENING. THE WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW...CREATING NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO REDUCED VISIBILITIES AND AS ROADS ARE SNOW COVERED AND SLIPPERY. OUTDOOR ENTHUSIASTS CAN QUICKLY BECOME DISORIENTED AND LOST IN THESE HAZARDOUS WINTER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ RJM
679 WWUS45 KCYS 230255 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 755 PM MST WED FEB 22 2012 ...SNOW AND STRONG WINDS WILL CONTINUE TO AFFECT THE SIERRA MADRE AND SNOWY RANGE MOUNTAINS THROUGH THURSDAY MORNING... .MOIST NORTHWEST FLOW WILL CONTINUE OVER THE MOUNTAINS OF SOUTHEAST WYOMING THROUGH THURSDAY MORNING. THIS WIND FLOW WILL RIDE UP THE MOUNTAINS AND PRODUCE PERIODS OF HEAVY SNOW THROUGH EARLY THURSDAY MORNING. IN ADDITION...STRONG WEST TO NORTHWEST WINDS WILL CONTINUE TONIGHT. THE COMBINATION OF SNOW AND STRONG WINDS WILL PRODUCE VERY HAZARDOUS CONDITIONS IN THE MOUNTAINS THROUGH THURSDAY MORNING. WYZ112-114-231200- /O.CON.KCYS.WS.W.0005.000000T0000Z-120223T1200Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 755 PM MST WED FEB 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * TIMING...UNTIL 5 AM MST THURSDAY. * TOTAL SNOW ACCUMULATIONS...AN ADDITIONAL 4 TO 8 INCHES CAN BE EXPECTED THROUGH THURSDAY MORNING WITH LOCALLY HIGHER AMOUNTS ON THE WEST AND NORTHWEST FACING SLOPES. * WINDS/VISIBILITIES...SUSTAINED WEST WINDS AT 30 TO 40 MPH WITH GUSTS TO 60 MPH WILL CONTINUE TONIGHT. THE WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW...CREATING NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BE VERY HAZARDOUS DUE TO REDUCED VISIBILITIES AND SNOW COVERED ROADS. OUTDOOR ENTHUSIASTS CAN QUICKLY BECOME DISORIENTED AND LOST IN THESE HAZARDOUS WINTER CONDITIONS. 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 TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ JAMSKI
876 WWUS45 KCYS 231109 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 409 AM MST THU FEB 23 2012 ...WINTER STORM WARNINGS CANCELLED... WYZ112-114-231215- /O.CAN.KCYS.WS.W.0005.000000T0000Z-120223T1200Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 409 AM MST THU FEB 23 2012 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER STORM WARNING. .HEAVY SNOW HAS PRETTY MUCH COME TO AN END THIS MORNING ACROSS THE SNOWY AND SIERRA MADRE RANGES. SIGNIFICANT ACCUMULATIONS ARE NO LONGER EXPECTED. THEREFORE...THE WINTER STORM WARNINGS HAVE BEEN CANCELLED EARLY. $$
Nearby
Winter 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.