Alert archive / Wyoming / Wind Chill Warnings in 2011
Wind Chill Warning 8, NWS Cheyenne, WY
NWS Cheyenne, WY issued this wind chill warning at Dec 5, 2011, 2:12 PM MST for Albany County, Wyoming. It took effect at Dec 5, 2011, 8:00 PM MST. It was in force for 13 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 5, 2011, 2:12 PM MST (21:12 UTC)
- In effect from
- Dec 5, 2011, 8:00 PM MST
- Expired
- Dec 6, 2011, 8:30 AM MST
- In force
- 13 hr
- Issued by
- NWS Cheyenne, WY
County Albany County, WY
The radar
The Cheyenne radar (KCYS), 95 km from the middle of the area, began a volume at 21:15 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
Riverton, WY (KRIW), launched 12:00Z, 9.2 hours before the alert went out and 270 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
- 959 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
509 WWUS45 KCYS 052112 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 212 PM MST MON DEC 5 2011 ...VERY LOW WIND CHILLS EXPECTED TONIGHT INTO TUESDAY MORNING... .AN ARCTIC AIR MASS WILL REMAIN OVER THE REGION THROUGH TUESDAY MORNING BEFORE DEPARTING. CLEAR SKIES AND LIGHT WINDS WILL ALLOW TEMPERATURES TO FALL TO VERY COLD LEVELS AGAIN TONIGHT AND TUESDAY MORNING AND COMBINED WITH A LIGHT BREEZE WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. WYZ115-061200- /O.UPG.KCYS.WC.Y.0006.111206T0100Z-111206T1700Z/ /O.NEW.KCYS.WC.W.0008.111206T0300Z-111206T1700Z/ LARAMIE VALLEY- INCLUDING THE CITY OF...LARAMIE 212 PM MST MON DEC 5 2011 ...WIND CHILL WARNING IN EFFECT FROM 8 PM THIS EVENING TO 10 AM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 10 AM MST TUESDAY. THE WIND CHILL ADVISORY IS NO LONGER IN EFFECT. * WIND CHILL VALUES...FROM 30 BELOW TO 35 BELOW ZERO WITH LOCALLY COLDER VALUES POSSIBLE. * WINDS...WEST OR SOUTHWEST 5 TO 10 MPH. * IMPACTS...FROSTBITE OR HYPOTHERMIA WILL BE POSSIBLE IN A SHORT TIME IF EXPOSED TO THESE LOW WIND CHILLS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ WYZ103>106-109>114-116-117-061200- /O.EXT.KCYS.WC.Y.0006.111206T0300Z-111206T1700Z/ NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE- UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...BORDEAUX... RAWLINS...SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS... DIXON...SARATOGA...ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY... WOODS LANDING...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK... HARRIMAN...WHITAKER 212 PM MST MON DEC 5 2011 ...WIND CHILL ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO 10 AM MST TUESDAY... THE WIND CHILL ADVISORY IS NOW IN EFFECT FROM 8 PM THIS EVENING TO 10 AM MST TUESDAY. * WIND CHILL VALUES...FROM 20 -TO 30 -DEGREES. * WINDS...WEST AT 10 TO 15 MPH OVER THE HIGHER TERRAIN AND 5 TO 10 MPH IN THE VALLEYS. * IMPACTS...FROSTBITE OR HYPOTHERMIA WILL BE POSSIBLE IF EXPOSED TO THESE LOW WIND CHILLS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WIND CHILLS IN THE MINUS 20 TO 30 DEGREE RANGE CAN RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$
2 follow-up statements
538 WWUS45 KCYS 061041 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 341 AM MST TUE DEC 6 2011 ...VERY LOW WIND CHILLS EXPECTED THIS MORNING... .AN ARCTIC AIRMASS WILL REMAIN OVER THE REGION THIS MORNING BEFORE DEPARTING TO THE EAST. THE VERY COLD TEMPERATURES COMBINED WITH THE WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. WYZ115-061700- /O.CON.KCYS.WC.W.0008.000000T0000Z-111206T1700Z/ LARAMIE VALLEY- INCLUDING THE CITY OF...LARAMIE 341 AM MST TUE DEC 6 2011 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM MST THIS MORNING... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM MST THIS MORNING. * WIND CHILL VALUES...FROM 30 BELOW TO 40 BELOW ZERO. * WINDS...WEST TO SOUTHWEST AROUND 10 MPH. * IMPACTS...FROSTBITE OR HYPOTHERMIA WILL BE POSSIBLE IN A SHORT TIME IF EXPOSED TO THESE LOW WIND CHILLS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ WYZ103>106-109>114-116-117-061700- /O.CON.KCYS.WC.Y.0006.000000T0000Z-111206T1700Z/ NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE- UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...BORDEAUX... RAWLINS...SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS... DIXON...SARATOGA...ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY... WOODS LANDING...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK... HARRIMAN...WHITAKER 341 AM MST TUE DEC 6 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST THIS MORNING... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST THIS MORNING. * WIND CHILL VALUES...FROM 20 BELOW TO 30 BELOW ZERO. * WINDS...WEST TO SOUTHWEST AT 10 TO 15 MPH OVER THE HIGHER TERRAIN AND 5 TO 10 MPH IN THE VALLEYS. * IMPACTS...FROSTBITE OR HYPOTHERMIA WILL BE POSSIBLE IF EXPOSED TO THESE LOW WIND CHILLS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WIND CHILLS IN THE MINUS 20 TO 30 DEGREE RANGE CAN RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ JAMSKI
695 WWUS45 KCYS 061530 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 830 AM MST TUE DEC 6 2011 WYZ115-061630- /O.CAN.KCYS.WC.W.0008.000000T0000Z-111206T1700Z/ LARAMIE VALLEY- INCLUDING THE CITY OF...LARAMIE 830 AM MST TUE DEC 6 2011 ...WIND CHILL WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WIND CHILL WARNING. TEMPERATURES HAVE WARMED SUFFICIENTLY THIS MORNING TO ALLOW WIND CHILL VALUES TO RISE ABOVE DANGEROUS LEVELS. $$ WYZ103>106-109>114-116-117-061630- /O.CAN.KCYS.WC.Y.0006.000000T0000Z-111206T1700Z/ NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE- UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...BORDEAUX... RAWLINS...SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS... DIXON...SARATOGA...ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY... WOODS LANDING...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK... HARRIMAN...WHITAKER 830 AM MST TUE DEC 6 2011 ...WIND CHILL ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WIND CHILL ADVISORY. TEMPERATURES HAVE WARMED SUFFICIENTLY THIS MORNING TO ALLOW WIND CHILL VALUES TO RISE ABOVE ADVISORY LEVELS. $$ RE
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 5, 2:33 AM MST | Wind Chill Advisory | CYS | Albany, Carbon, Converse, Laramie, Platte | 30 hr |
Nearby
Wind Chill Warnings in Wyoming, 2011Every wind chill 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.