Alert archive / Wyoming / Wind Chill Warnings in 2015
Wind Chill Warning 2, NWS Cheyenne, WY
NWS Cheyenne, WY issued this wind chill warning at Dec 27, 2015, 5:47 PM MST for Albany County, Carbon County, Wyoming. It took effect at Dec 27, 2015, 8:00 PM MST. It was in force for 11 hr. 5 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
- Dec 27, 2015, 5:47 PM MST (00:47 UTC)
- In effect from
- Dec 27, 2015, 8:00 PM MST
- Expired
- Dec 28, 2015, 7:00 AM MST
- In force
- 11 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 00:49 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 |
|---|---|---|---|
| Dec 27, 8:31 PM MST | EXTR WIND CHILL -23 | 31 Wnw Laramie, WY | THIS IS WYDOT SITE HERRICK RIDGE. |
| Dec 27, 8:41 PM MST | EXTR WIND CHILL -25 | 15 E Sinclair, WY | WYDOT SITE OF WALCOTT JUNCTION. |
| Dec 27, 8:53 PM MST | EXTR WIND CHILL -30 | Laramie, WY | |
| Dec 27, 8:53 PM MST | EXTR WIND CHILL -26 | Rawlins, WY | |
| Dec 27, 8:55 PM MST | EXTR WIND CHILL -20 | 11 Ssw Hanna, WY | WYDOT SITE DANA RIDGE. |
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, 0.8 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
- 3216 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
385 WWUS45 KCYS 280047 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 547 PM MST SUN DEC 27 2015 ...DANGEROUS WIND CHILL TEMPERATURES TONIGHT... .DANGEROUS WINDCHILL TEMPERATURES ARE EXPECTED TO AGAIN DEVELOP TONIGHT AND PERSIST THROUGH MONDAY MORNING. OVERNIGHT LOWS WEST OF THE LARAMIE RANGE ARE EXPECTED TO FALL CLOSE TO 20 BELOW ZERO WITH OVERNIGHT LOWS OF 10 TO 15 BELOW IN THE NEBRASKA PANHANDLE. SOUTHEAST TO SOUTHWEST WINDS OF 8 TO 10 MPH WILL CREATE DANGEROUS WINDCHILL TEMPERATURES WITH THESE VERY COLD OVERNIGHT LOWS. WYZ104-105-109>111-115-281200- /O.NEW.KCYS.WC.W.0002.151228T0300Z-151228T1600Z/ FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN- CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-LARAMIE VALLEY- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS... SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON... LARAMIE 547 PM MST SUN DEC 27 2015 ...WIND CHILL WARNING IN EFFECT UNTIL 9 AM MST MONDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 9 AM MST MONDAY. * WIND CHILL VALUES...30 TO 40 BELOW ZERO WINDCHILL TEMPERATURES EXPECTED. * IMPACTS...VERY COLD WIND CHILL TEMPERATURES COULD PRODUCE HYPOTHERMIA AND FROSTBITE IN A MATTER OF MINUTES IF YOUR SKIN IS NOT APPROPRIATELY COVERED. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO 10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$ NEZ002-003-019>021-054-055-095-096-281200- /O.NEW.KCYS.WC.Y.0004.151228T0300Z-151228T1600Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE 547 PM MST SUN DEC 27 2015 ...WIND CHILL ADVISORY IN EFFECT UNTIL 9 AM MST MONDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT UNTIL 9 AM MST MONDAY. * WIND CHILL VALUES...20 TO 30 BELOW ZERO WINDCHILLS EXPECTED. * IMPACTS...VERY COLD WIND CHILL TEMPERATURES COULD PRODUCE HYPOTHERMIA AND FROSTBITE IN A MATTER OF MINUTES IF YOUR SKIN IS NOT APPROPRIATELY COVERED. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$
2 follow-up statements
806 WWUS45 KCYS 281002 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 302 AM MST MON DEC 28 2015 NEZ002-003-019>021-054-055-095-096-281115- /O.CAN.KCYS.WC.Y.0004.000000T0000Z-151228T1600Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE 302 AM MST MON DEC 28 2015 ...WIND CHILL ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WIND CHILL ADVISORY. TEMPERATURES ACROSS WESTERN NEBRASKA HAVE INCREASED ABOVE ZERO EARLY THIS MORNING AS HIGH CLOUDS HAVE PUSHED INTO THE AREA. WIND CHILL VALUES WILL REMAIN BETWEEN 10 BELOW ZERO TO 5 ABOVE ZERO THIS MORNING TODAY. $$ WYZ104-105-109>111-115-281400- /O.EXT.KCYS.WC.W.0002.000000T0000Z-151228T1400Z/ FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN- CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-LARAMIE VALLEY- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS... SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON... LARAMIE 302 AM MST MON DEC 28 2015 ...WIND CHILL WARNING NOW IN EFFECT UNTIL 7 AM MST THIS MORNING... * WIND CHILL VALUES...25 TO 40 BELOW ZERO WINDCHILL TEMPERATURES EXPECTED. * IMPACTS...VERY COLD WIND CHILL TEMPERATURES COULD PRODUCE HYPOTHERMIA AND FROSTBITE IN A MATTER OF MINUTES IF YOUR SKIN IS NOT APPROPRIATELY COVERED. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO 10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$
106 WWUS45 KCYS 281336 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 636 AM MST MON DEC 28 2015 WYZ104-105-109>111-115-281445- /O.EXP.KCYS.WC.W.0002.000000T0000Z-151228T1400Z/ FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN- CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-LARAMIE VALLEY- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS... SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON... LARAMIE 636 AM MST MON DEC 28 2015 ...WIND CHILL WARNING WILL EXPIRE AT 7 AM MST THIS MORNING... TEMPERATURES WILL INCREASE THIS MORNING AFTER SUNRISE WITH LIGHT WINDS. THEREFORE...THE WIND CHILL WARNING IS ALLOWED TO EXPIRE THIS MORNING. $$
Nearby
Wind Chill Warnings in Wyoming, 2015Every wind chill warning in 2015
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.