Alert archive / Wyoming / Wind Chill Warnings in 2014
Wind Chill Warning 4, NWS Cheyenne, WY
NWS Cheyenne, WY issued this wind chill warning at Nov 11, 2014, 2:30 PM MST for 6 counties in Wyoming. It took effect at Nov 11, 2014, 6:00 PM MST. It was in force for 16 hr. 6 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
- Nov 11, 2014, 2:30 PM MST (21:30 UTC)
- In effect from
- Nov 11, 2014, 6:00 PM MST
- Expired
- Nov 12, 2014, 10:00 AM MST
- In force
- 16 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY, Converse County, WY, Laramie County, WY, Niobrara County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 119 km from the middle of the area, began a volume at 21:32 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 |
|---|---|---|---|
| Nov 11, 6:03 PM MST | SNOW 1 | Cheyenne, WY | |
| Nov 11, 6:03 PM MST | SNOW 2 | Rawlins, WY | |
| Nov 11, 6:03 PM MST | SNOW 3 | Laramie, WY | RANGED FROM 2 TO 3 INCHES |
| Nov 11, 7:01 PM MST | SNOW 2 | Horse Creek, WY | |
| Nov 11, 7:01 PM MST | SNOW 5 | Lance Creek, WY | |
| Nov 11, 7:01 PM MST | SNOW 8 | 20 N Lusk, WY | SNOW DEPTH |
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 12:00Z, 9.5 hours before the alert went out and 268 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
- 731 m above ground
- 0-6 km bulk shear
- 108 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- 388 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
621 WWUS45 KCYS 112130 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 230 PM MST TUE NOV 11 2014 ...BITTER COLD WIND CHILLS AND LIGHT SNOW EXPECTED TONIGHT THROUGH EARLY WEDNESDAY... .AN ARCTIC AIRMASS WILL CONTINUE TO DRIFT SOUTHWARD TONIGHT INTO SOUTHEAST WYOMING AND WESTERN NEBRASKA. AS THE STRONG ARCTIC HIGH PRESSURE MOVES INTO THE AREA...WINDS WILL BE BRISK AT TIMES THROUGH TONIGHT. WINDS BETWEEN 5 TO 15 MPH COMBINED WITH FRIGID AIR TEMPERATURES WILL RESULT IN DANGEROUS WIND CHILLS AT TIMES. IN ADDITION...WIDESPREAD LIGHT SNOW WILL CONTINUE ACROSS SOUTHEAST WYOMING AND WESTERN NEBRASKA. WHILE SNOW ACCUMULATIONS WILL GENERALLY BE IN THE 1 TO 2 INCH RANGE...SLIGHTLY HIGHER AMOUNTS ARE EXPECTED IN THE MOUNTAINS AND ADJACENT PLAINS. WYZ101>105-115-121200- /O.NEW.KCYS.WC.W.0004.141112T0100Z-141112T1700Z/ CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-LARAMIE VALLEY- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...MUDDY GAP... MEDICINE BOW...LARAMIE 230 PM MST TUE NOV 11 2014 ...WIND CHILL WARNING IN EFFECT FROM 6 PM THIS EVENING TO 10 AM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 10 AM MST WEDNESDAY. * SUMMARY...AIR TEMPERATURES WILL DROP BELOW ZERO THIS EVENING. FRIGID TEMPERATURES COMBINED WITH BRISK NORTHERLY WINDS WILL CREATE BITTER COLD WIND CHILLS TONIGHT AND EARLY WEDNESDAY MORNING. * WIND CHILL VALUES...25 BELOW TO 35 BELOW ZERO. * IMPACTS...INDIVIDUALS OUT DOORS MAY EXPERIENCE SUDDEN FROST BITE AND HYPOTHERMIA DURING PROLONGED EXPOSURE WITH THESE WIND CHILL TEMPERATURES TONIGHT. LIVESTOCK WILL ALSO BE AFFECTED. 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. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH COLD TEMPERATURES CAN CAUSE STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. && $$ WYZ106-117-118-121200- /O.NEW.KCYS.WC.Y.0010.141112T0700Z-141112T1700Z/ /O.CON.KCYS.WW.Y.0023.000000T0000Z-141112T0700Z/ CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...BORDEAUX...HORSE CREEK...HARRIMAN... WHITAKER...CHEYENNE 230 PM MST TUE NOV 11 2014 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... ...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MST WEDNESDAY. THE WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT. * TIMING...PERIODS OF LIGHT SNOW WILL CONTINUE THROUGH TONIGHT. * SNOW ACCUMULATION...2 TO 4 INCHES OF SNOW. * IMPACTS...ROADS WILL BE SNOW COVERED AND SLIPPERY WITH REDUCED VISIBILITIES DUE TO FALLING SNOW. WIND CHILLS WILL DROP BETWEEN 15 BELOW TO 25 BELOW ZERO LATE THIS EVENING. COLD WIND CHILLS CAN PRODUCE FROSTBITE IN ONLY A SHORT PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$ NEZ002-003-019>021-054-055-095-096-WYZ107>110-116-119-121200- /O.NEW.KCYS.WC.Y.0010.141112T0100Z-141112T1700Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-EAST PLATTE COUNTY-GOSHEN COUNTY- CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTH LARAMIE RANGE-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY... TORRINGTON...RAWLINS...SINCLAIR...HANNA...ARLINGTON... ELK MOUNTAIN...VEDAUWOO...BUFORD...PUMPKIN VINE...BURNS... CARPENTER...ALBIN...PINE BLUFFS 230 PM MST TUE NOV 11 2014 ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 10 AM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 10 AM MST WEDNESDAY. * SUMMARY...AIR TEMPERATURES WILL DROP BELOW ZERO BY MIDNIGHT TONIGHT. FRIGID TEMPERATURES COMBINED WITH BRISK NORTHERLY WINDS WILL CREATE BITTER COLD WIND CHILLS TONIGHT AND EARLY WEDNESDAY MORNING. * WIND CHILL VALUES...15 BELOW TO 25 BELOW ZERO. AROUND 30 BELOW ZERO NORTH OF INTERSTATE 80 INCLUDING THE NORTHERN NEBRASKA PANHANDLE. * IMPACTS...INDIVIDUALS OUT DOORS MAY EXPERIENCE FROST BITE AND HYPOTHERMIA DURING PROLONGED EXPOSURE WITH THESE WIND CHILL TEMPERATURES TONIGHT. LIVESTOCK MAY ALSO BE AFFECTED. 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. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH COLD TEMPERATURES CAN CAUSE STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. && $$ TT
4 follow-up statements
388 WWUS45 KCYS 120038 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 538 PM MST TUE NOV 11 2014 ...BITTER COLD WIND CHILLS AND LIGHT SNOW EXPECTED TONIGHT THROUGH EARLY WEDNESDAY... .AN ARCTIC AIRMASS WILL CONTINUE TO DRIFT SOUTHWARD TONIGHT INTO SOUTHEAST WYOMING AND WESTERN NEBRASKA. AS THE STRONG ARCTIC HIGH PRESSURE MOVES INTO THE AREA...WINDS WILL BE BRISK AT TIMES THROUGH TONIGHT. WINDS BETWEEN 5 TO 15 MPH COMBINED WITH FRIGID AIR TEMPERATURES WILL RESULT IN DANGEROUS WIND CHILLS AT TIMES. IN ADDITION...WIDESPREAD LIGHT SNOW WILL CONTINUE ACROSS SOUTHEAST WYOMING AND WESTERN NEBRASKA. WHILE SNOW ACCUMULATIONS WILL GENERALLY BE IN THE 1 TO 2 INCH RANGE...SLIGHTLY HIGHER AMOUNTS ARE EXPECTED IN THE MOUNTAINS...LARAMIE VALLEY AND ADJACENT PLAINS. WYZ115-120845- /O.EXA.KCYS.WW.Y.0023.000000T0000Z-141112T0700Z/ /O.CON.KCYS.WC.W.0004.141112T0100Z-141112T1700Z/ LARAMIE VALLEY- INCLUDING THE CITY OF...LARAMIE 538 PM MST TUE NOV 11 2014 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT MST TONIGHT... ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MST WEDNESDAY. THE WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT. * TIMING...PERIODS OF LIGHT SNOW WILL CONTINUE THROUGH TONIGHT. * SNOW ACCUMULATION...3 TO 5 INCHES OF SNOW. * IMPACTS...ROADS WILL BE SNOW COVERED AND SLIPPERY WITH REDUCED VISIBILITIES DUE TO FALLING SNOW. WIND CHILLS WILL DROP BETWEEN 20 BELOW AND 25 BELOW ZERO LATE THIS EVENING. COLD WIND CHILLS CAN PRODUCE FROSTBITE IN ONLY A SHORT PERIOD OF TIME. 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. && $$ WYZ101>105-120845- /O.CON.KCYS.WC.W.0004.141112T0100Z-141112T1700Z/ CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...MUDDY GAP... MEDICINE BOW 538 PM MST TUE NOV 11 2014 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM MST WEDNESDAY... * SUMMARY...AIR TEMPERATURES WILL DROP BELOW ZERO THIS EVENING. FRIGID TEMPERATURES COMBINED WITH BRISK NORTHERLY WINDS WILL CREATE BITTER COLD WIND CHILLS TONIGHT AND EARLY WEDNESDAY MORNING. * WIND CHILL VALUES...25 BELOW TO 35 BELOW ZERO. * IMPACTS...INDIVIDUALS OUT DOORS MAY EXPERIENCE SUDDEN FROST BITE AND HYPOTHERMIA DURING PROLONGED EXPOSURE WITH THESE WIND CHILL TEMPERATURES TONIGHT. LIVESTOCK WILL ALSO BE AFFECTED. 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. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH COLD TEMPERATURES CAN CAUSE STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. && $$ WYZ106-117-118-120845- /O.CON.KCYS.WW.Y.0023.000000T0000Z-141112T0700Z/ /O.CON.KCYS.WC.Y.0010.141112T0700Z-141112T1700Z/ CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...BORDEAUX...HORSE CREEK...HARRIMAN... WHITAKER...CHEYENNE 538 PM MST TUE NOV 11 2014 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MST WEDNESDAY. THE WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT. * TIMING...PERIODS OF LIGHT SNOW WILL CONTINUE THROUGH TONIGHT. * SNOW ACCUMULATION...2 TO 4 INCHES OF SNOW. * IMPACTS...ROADS WILL BE SNOW COVERED AND SLIPPERY WITH REDUCED VISIBILITIES DUE TO FALLING SNOW. WIND CHILLS WILL DROP BETWEEN 15 BELOW TO 25 BELOW ZERO LATE THIS EVENING. COLD WIND CHILLS CAN PRODUCE FROSTBITE IN ONLY A SHORT PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$ NEZ002-003-019>021-054-055-095-096-WYZ107>110-116-119-120845- /O.CON.KCYS.WC.Y.0010.141112T0100Z-141112T1700Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-EAST PLATTE COUNTY-GOSHEN COUNTY- CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTH LARAMIE RANGE-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY... TORRINGTON...RAWLINS...SINCLAIR...HANNA...ARLINGTON... ELK MOUNTAIN...VEDAUWOO...BUFORD...PUMPKIN VINE...BURNS... CARPENTER...ALBIN...PINE BLUFFS 538 PM MST TUE NOV 11 2014 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST WEDNESDAY... * SUMMARY...AIR TEMPERATURES WILL DROP BELOW ZERO BY MIDNIGHT TONIGHT. FRIGID TEMPERATURES COMBINED WITH BRISK NORTHERLY WINDS WILL CREATE BITTER COLD WIND CHILLS TONIGHT AND EARLY WEDNESDAY MORNING. * WIND CHILL VALUES...15 BELOW TO 25 BELOW ZERO. AROUND 30 BELOW ZERO NORTH OF INTERSTATE 80 INCLUDING THE NORTHERN NEBRASKA PANHANDLE. * IMPACTS...INDIVIDUALS OUT DOORS MAY EXPERIENCE FROST BITE AND HYPOTHERMIA DURING PROLONGED EXPOSURE WITH THESE WIND CHILL TEMPERATURES TONIGHT. LIVESTOCK MAY ALSO BE AFFECTED. 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. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH COLD TEMPERATURES CAN CAUSE STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. && $$
384 WWUS45 KCYS 120458 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 958 PM MST TUE NOV 11 2014 ...BITTER COLD WIND CHILLS AND LIGHT SNOW EXPECTED TONIGHT THROUGH EARLY WEDNESDAY... .AN ARCTIC AIRMASS WILL CONTINUE TO DRIFT SOUTHWARD TONIGHT INTO SOUTHEAST WYOMING AND WESTERN NEBRASKA. AS THE STRONG ARCTIC HIGH PRESSURE MOVES INTO THE AREA...WINDS WILL BE BRISK AT TIMES THROUGH TONIGHT. WINDS BETWEEN 5 TO 15 MPH COMBINED WITH FRIGID AIR TEMPERATURES WILL RESULT IN DANGEROUS WIND CHILLS AT TIMES. IN ADDITION...LIGHT SNOW WILL GRADUALLY DIMINISH ACROSS SOUTHEAST WYOMING AND WESTERN NEBRASKA WITH ADDITIONAL SNOWFALL ACCUMULATIONS LESS THAN AN INCH. HOWEVER...THE LARAMIE VALLEY AND THE MOUNTAINS MAY RECEIVE AN ADDITIONAL 1 TO 2 INCHES OVERNIGHT BEFORE ENDING TOWARDS DAYBREAK. WYZ117-118-121200- /O.CAN.KCYS.WW.Y.0023.000000T0000Z-141112T0700Z/ /O.UPG.KCYS.WC.Y.0010.141112T0700Z-141112T1700Z/ /O.EXA.KCYS.WC.W.0004.000000T0000Z-141112T1700Z/ SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...HORSE CREEK...HARRIMAN...WHITAKER... CHEYENNE 958 PM MST TUE NOV 11 2014 ...WIND CHILL WARNING IN EFFECT UNTIL 10 AM MST WEDNESDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 10 AM MST WEDNESDAY. THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. THE WIND CHILL ADVISORY IS NO LONGER IN EFFECT. * SUMMARY...AIR TEMPERATURES WILL CONTINUE TO DROP TO 10 BELOW ZERO BY DAYBREAK. FRIGID TEMPERATURES COMBINED WITH BRISK NORTHERLY WINDS WILL CREATE BITTER COLD WIND CHILLS TONIGHT AND EARLY WEDNESDAY MORNING. * WIND CHILL VALUES...25 BELOW TO 35 BELOW ZERO. * IMPACTS...ROADS WILL BE SNOW COVERED AND SLIPPERY WITH REDUCED VISIBILITIES DUE TO FALLING SNOW. WIND CHILLS WILL DROP BETWEEN 25 BELOW AND 35 BELOW ZERO BY DAYBREAK. COLD WIND CHILLS CAN PRODUCE FROSTBITE IN ONLY A SHORT PERIOD OF TIME. 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 EXTREMETIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$ WYZ115-121200- /O.CAN.KCYS.WW.Y.0023.000000T0000Z-141112T0700Z/ /O.CON.KCYS.WC.W.0004.000000T0000Z-141112T1700Z/ LARAMIE VALLEY- INCLUDING THE CITY OF...LARAMIE 958 PM MST TUE NOV 11 2014 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM MST WEDNESDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER WEATHER ADVISORY. THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MST WEDNESDAY. * SUMMARY...AIR TEMPERATURES WILL CONTINUE TO DROP TO 10 TO 15 BELOW ZERO BY DAYBREAK. FRIGID TEMPERATURES COMBINED WITH BRISK NORTHERLY WINDS WILL CREATE BITTER COLD WIND CHILLS TONIGHT AND EARLY WEDNESDAY MORNING. * WIND CHILL VALUES...25 TO 35 BELOW ZERO. * IMPACTS...ROADS WILL BE SNOW COVERED AND SLIPPERY. WIND CHILLS WILL DROP BETWEEN 25 BELOW AND 35 BELOW ZERO LATE THIS EVENING. COLD WIND CHILLS CAN PRODUCE FROSTBITE IN ONLY A SHORT PERIOD OF TIME. 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 EXTREMETIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$ WYZ106-121200- /O.CAN.KCYS.WW.Y.0023.000000T0000Z-141112T0700Z/ /O.EXT.KCYS.WC.Y.0010.141112T0458Z-141112T1700Z/ CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- INCLUDING THE CITY OF...BORDEAUX 958 PM MST TUE NOV 11 2014 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 10 AM MST WEDNESDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER WEATHER ADVISORY. * SNOW ACCUMULATION...LESS THAN ONE INCH. * IMPACTS...ROADS WILL BE SNOW COVERED AND SLIPPERY WITH REDUCED VISIBILITIES DUE TO FALLING SNOW. WIND CHILLS WILL DROP BETWEEN 15 BELOW TO 25 BELOW ZERO LATE THIS EVENING. COLD WIND CHILLS CAN PRODUCE FROSTBITE IN ONLY A SHORT PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$ WYZ116-121200- /O.UPG.KCYS.WC.Y.0010.000000T0000Z-141112T1700Z/ /O.EXA.KCYS.WC.W.0004.000000T0000Z-141112T1700Z/ SOUTH LARAMIE RANGE- INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE 958 PM MST TUE NOV 11 2014 ...WIND CHILL WARNING IN EFFECT UNTIL 10 AM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 10 AM MST WEDNESDAY. THE WIND CHILL ADVISORY IS NO LONGER IN EFFECT. * SUMMARY...AIR TEMPERATURES WILL CONTINUE TO DROP TO 10 BELOW ZERO BY DAYBREAK. FRIGID TEMPERATURES COMBINED WITH BRISK NORTHERLY WINDS WILL CREATE BITTER COLD WIND CHILLS TONIGHT AND EARLY WEDNESDAY MORNING. * WIND CHILL VALUES...25 BELOW TO 35 BELOW ZERO. * IMPACTS...INDIVIDUALS OUT DOORS MAY EXPERIENCE FROST BITE AND HYPOTHERMIA DURING PROLONGED EXPOSURE WITH THESE WIND CHILL TEMPERATURES TONIGHT. LIVESTOCK MAY ALSO BE AFFECTED. 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 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 EXTREMETIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$ WYZ101>105-121200- /O.CON.KCYS.WC.W.0004.000000T0000Z-141112T1700Z/ CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...MUDDY GAP... MEDICINE BOW 958 PM MST TUE NOV 11 2014 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM MST WEDNESDAY... * SUMMARY...AIR TEMPERATURES WILL DROP BELOW ZERO THIS EVENING. FRIGID TEMPERATURES COMBINED WITH BRISK NORTHERLY WINDS WILL CREATE BITTER COLD WIND CHILLS TONIGHT AND EARLY WEDNESDAY MORNING. * WIND CHILL VALUES...25 BELOW TO 35 BELOW ZERO. * IMPACTS...INDIVIDUALS OUT DOORS MAY EXPERIENCE SUDDEN FROST BITE AND HYPOTHERMIA DURING PROLONGED EXPOSURE WITH THESE WIND CHILL TEMPERATURES TONIGHT. LIVESTOCK WILL ALSO BE AFFECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO 10 MINUTES. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH COLD TEMPERATURES CAN CAUSE STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. && $$ NEZ002-003-019>021-054-055-095-096-WYZ107>110-119-121200- /O.CON.KCYS.WC.Y.0010.000000T0000Z-141112T1700Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-EAST PLATTE COUNTY-GOSHEN COUNTY- CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY... TORRINGTON...RAWLINS...SINCLAIR...HANNA...ARLINGTON... ELK MOUNTAIN...BURNS...CARPENTER...ALBIN...PINE BLUFFS 958 PM MST TUE NOV 11 2014 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST WEDNESDAY... * SUMMARY...AIR TEMPERATURES WILL DROP BELOW ZERO BY MIDNIGHT TONIGHT. FRIGID TEMPERATURES COMBINED WITH BRISK NORTHERLY WINDS WILL CREATE BITTER COLD WIND CHILLS TONIGHT AND EARLY WEDNESDAY MORNING. * WIND CHILL VALUES...15 BELOW TO 25 BELOW ZERO. AROUND 30 BELOW ZERO NORTH OF INTERSTATE 80 INCLUDING THE NORTHERN NEBRASKA PANHANDLE. * IMPACTS...INDIVIDUALS OUT DOORS MAY EXPERIENCE FROST BITE AND HYPOTHERMIA DURING PROLONGED EXPOSURE WITH THESE WIND CHILL TEMPERATURES TONIGHT. LIVESTOCK MAY ALSO BE AFFECTED. 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. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH COLD TEMPERATURES CAN CAUSE STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. && $$
139 WWUS45 KCYS 120959 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 259 AM MST WED NOV 12 2014 ...BITTER COLD WIND CHILLS THIS MORNING... .AN ARCTIC AIRMASS WILL COMBINE WITH NORTHERLY WINDS OF 5 TO 15 MPH TO PRODUCE BITTERLY COLD WIND CHILL VALUES THIS MORNING. WIND CHILLS WILL GENERALLY RANGE FROM MINUS 20 TO MINUS 35 DEGREES ACROSS MUCH OF SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE. TEMPERATURES WILL SLOWLY MODERATE TODAY BUT SUB ZERO WIND CHILLS WILL CONTINUE ACROSS THE AREA THIS AFTERNOON AND THROUGH TONIGHT. WYZ101>105-115>118-121700- /O.CON.KCYS.WC.W.0004.000000T0000Z-141112T1700Z/ CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-LARAMIE VALLEY-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...MUDDY GAP... MEDICINE BOW...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE 259 AM MST WED NOV 12 2014 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM MST THIS MORNING... * SUMMARY...FRIGID TEMPERATURES COMBINED WITH BRISK NORTHERLY WINDS WILL CREATE BITTER COLD WIND CHILLS THIS MORNING. * WIND CHILL VALUES...30 BELOW ZERO TO 35 BELOW ZERO. * IMPACTS...INDIVIDUALS OUT DOORS MAY EXPERIENCE SUDDEN FROST BITE AND HYPOTHERMIA DURING PROLONGED EXPOSURE WITH THESE WIND CHILL TEMPERATURES TONIGHT. LIVESTOCK WILL ALSO BE AFFECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO 10 MINUTES. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH COLD TEMPERATURES CAN CAUSE STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. && $$ NEZ002-003-019>021-054-055-095-096-WYZ106>110-119-121700- /O.CON.KCYS.WC.Y.0010.000000T0000Z-141112T1700Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...BORDEAUX...GLENDO...WHEATLAND...CHUGWATER... GUERNSEY...TORRINGTON...RAWLINS...SINCLAIR...HANNA...ARLINGTON... ELK MOUNTAIN...BURNS...CARPENTER...ALBIN...PINE BLUFFS 259 AM MST WED NOV 12 2014 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST THIS MORNING... * SUMMARY...FRIGID TEMPERATURES COMBINED WITH NORTHERLY WINDS WILL CREATE VERY COLD WIND CHILLS THIS MORNING. * WIND CHILL VALUES...15 BELOW ZERO TO 30 BELOW ZERO. * IMPACTS...INDIVIDUALS OUT DOORS MAY EXPERIENCE FROST BITE AND HYPOTHERMIA DURING PROLONGED EXPOSURE WITH THESE WIND CHILL TEMPERATURES TONIGHT. LIVESTOCK MAY ALSO BE AFFECTED. 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. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH COLD TEMPERATURES CAN CAUSE STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. && $$ SML
508 WWUS45 KCYS 121655 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 955 AM MST WED NOV 12 2014 ...WIND CHILL WARNING AND ADVISORY WILL EXPIRE AT 10 AM MST THIS MORNING... .WIND CHILL VALUES WILL RISE ABOVE -15 DEGREES AS TEMPERATURES SLOWLY MODERATE LATER THIS MORNING THROUGH THE AFTERNOON. WYZ101>105-115>118-121800- /O.EXP.KCYS.WC.W.0004.000000T0000Z-141112T1700Z/ CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-LARAMIE VALLEY-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...MUDDY GAP... MEDICINE BOW...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE 955 AM MST WED NOV 12 2014 ...WIND CHILL WARNING WILL EXPIRE AT 10 AM MST THIS MORNING... WIND CHILL VALUES WILL RISE ABOVE -15 DEGREES AS TEMPERATURES SLOWLY MODERATE LATER THIS MORNING THROUGH THE AFTERNOON. $$ NEZ002-003-019>021-054-055-095-096-WYZ106>110-119-121800- /O.EXP.KCYS.WC.Y.0010.000000T0000Z-141112T1700Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...BORDEAUX...GLENDO...WHEATLAND...CHUGWATER... GUERNSEY...TORRINGTON...RAWLINS...SINCLAIR...HANNA...ARLINGTON... ELK MOUNTAIN...BURNS...CARPENTER...ALBIN...PINE BLUFFS 955 AM MST WED NOV 12 2014 ...WIND CHILL ADVISORY WILL EXPIRE AT 10 AM MST THIS MORNING... WIND CHILL VALUES WILL RISE ABOVE -15 DEGREES AS TEMPERATURES SLOWLY MODERATE LATER THIS MORNING THROUGH THE AFTERNOON. $$
What forecasters said that day
The local office's own words before this wind chill warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before this wind chill warning went out at Nov 11, 10:48 AM MST, 3 hours 42 minutes earlier.
Area forecast discussion, Nov 11, 10:48 AM MST, 3 hours 42 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE CHEYENNE WY
1048 AM MST TUE NOV 11 2014
.UPDATE...
ISSUED AT 906 AM MST TUE NOV 11 2014
CURRENT RADAR LOOP SHOWS AN AREA OF LIGHT SNOW WITH BANDS OF
MODERATE SNOW DEVELOPING ALONG I80 AND I25 NORTH OF CHEYENNE THIS
MORNING. LIGHT SNOW SHOULD BECOME A BIT MORE STEADY IN THE
FROM LARAMIE EASTWARD INTO THE SOUTHERN NEBRASKA PANHANDLE TODAY
AND INTO TONIGHT. MODELS HAVE BEEN VERY CONSISTENT WITH THIS AREA
ALONG AND NEAR THE CHEYENNE RIDGE RECEIVING MORE MODERATE
SNOWFALL RATES. THE WINTER WEATHER ADVISORY LOOKS GOOD THROUGH
TONIGHT FOR 2 TO 5 INCHES OF SNOW AND GENERALLY 1 TO 3 ELSEWHERE.
THE FORECAST CHALLENGE FOR TODAY SHIFTS TOWARDS BITTERLY COLD OR
POTENTIALLY DANGEROUS WIND CHILLS TONIGHT. CURRENT 12Z MODEL
GUIDANCE IS JUST COMING IN THIS MORNING AND IS SHOWING MUCH COLDER
TEMPERATURES AND HIGHER WIND SPEEDS AS THE ARCTIC HIGH AT THE
SURFACE MOVES INTO THE AREA. WILL DEFINITELY SEE WIND CHILLS BELOW
-20...BUT THE QUESTION IS DO WE GET VALUES NEAR -40 AT TIMES
TONIGHT. WILL LIKELY ISSUE WIND CHILL HEADLINES OVER THE NEXT 3 TO
6 HOURS SINCE AIR TEMPERATURES MAY EVEN DROP BELOW ZERO BY SUNSET.
&&
.SHORT TERM...(TODAY THROUGH THURSDAY)
ISSUED AT 345 AM MST TUE NOV 11 2014
MAIN CHALLENGE THROUGH THE SHORT TERM IS HOW MUCH SNOW WILL FALL
ACROSS THE AREA TODAY. THERE IS HIGH PERCENT CHANCE FOR
MEASURABLE PRECIPITATION BUT SNOW AMOUNTS WILL BE ON THE LIGHT
SIDE...ESPECIALLY IN FAR SOUTHEAST WYOMING NEAR THE NEBRASKA
BORDER AND INTO THE WESTERN NEBRASKA PANHANDLE. MAINLY EXPECTING
AROUND 1 INCH OF SNOW ACCUMULATION THIS AFTERNOON AND EVENING IN
THESE AREAS.
THE BIGGER CONCERN IS ALONG THE EASTERN SLOPES OF THE LARAMIE
RANGE...PARTICULARLY THE SOUTHERN LARAMIE RANGE FOOTHILLS AND NEAR
THE CHEYENNE RIDGE. UPSLOPE NORTHEAST WIND IS LIKELY TO GIVE A
BOOST IN PRECIPITATION AMOUNTS ABOVE WHAT THE MODELS MIGHT
SUGGEST...AT LEAST THAT IS TYPICALLY THE CASE. THEREFORE BUMPED
SNOW ACCUMULATIONS 1 INCH HIGHER THAN WHAT THE MODELS INDICATE
CONSIDERING A 15 TO 1 SNOW TO LIQUID RATIO. THIS PUTS MUCH OF
WESTERN LARAMIE COUNTY AND SOUTHWEST PLATTE COUNTY PAST SNOW
ADVISORY AMOUNTS. OF COURSE DETERMINING SNOW RATIOS IS A TOUGH
PROPOSITION GIVEN THE VERY COLD AIRMASS. REGARDLESS OF SNOW RATIOS...
BY MID AFTERNOON THE NAM INDICATES CONDITIONAL LOW LEVEL
INSTABILITY. WITH PLENTY OF MID TO UPPER LEVEL FORCING
AROUND ITS LIKELY THAT CONDITIONAL INSTABILITY WILL BE RELEASED
AND A FEW BANDS WITH HIGHER SNOW RATES AND LARGER SNOW CRYSTALS
WILL OCCUR. BY OOZ THIS EVENING THE NAM CONTINUES TO SHOW LOW
LEVEL INSTABILITY AND IT WILL BE COLOCATED WITH FRONTOGENESIS...
MAKING BANDED SNOWFALL A GREATER POSSIBILITY...AT LEAST THROUGH
MID EVENING. LONG STORY SHORT...THINKING 3 TO 5 INCHES OF
ACCUMULATION IS A GOOD BET NEAR THE SOUTHERN LARAMIE RANGE
INCLUDING AROUND CHEYENNE.
WINDS WILL NOT BE A BIG PROBLEM TODAY BUT WILL SEE SOME GUSTS TO
AROUND 20 MPH WHICH WILL OCCUR WITH FALLING SNOW. WIDESPREAD
BLOWING SNOW IS NOT A CONCERN BUT FALLING SNOW AND 20 MPH WIND
GUSTS WILL FURTHER REDUCE VISIBILITIES IN OPEN AREAS TODAY. WIND
CHILL VALUES WILL ALSO BE COLD TODAY WITH VALUES MAINLY AROUND THE
ZERO DEGREE MARK. BY TONIGHT WIND CHILL TEMPERATURES WILL DROP
INTO THE 20 BELOW ZERO TO 30 BELOW ZERO RANGE...WHICH MEANS A WIND
CHILL ADVISORY IS LIKELY FOR MUCH OF THE FORECAST AREA.
SNOW WILL TAPER OFF FROM NORTH TO SOUTH THIS EVENING WITH SNOW
ENDING ACROSS MOST OF THE AREA BY LATE TONIGHT. A FEW LIGHT SNOW
SHOWERS MAY LINGER INTO WEDNESDAY MORNING NEAR THE COLORADO
BORDER...BUT ADDITIONAL SNOW ACCUMULATIONS ARE UNLIKELY.
TEMPERATURES WILL AGAIN STRUGGLE TO WARM WEDNESDAY WITH HIGHS
MAINLY IN THE SINGLE DIGITS ABOVE ZERO...OR IN OTHER WORDS NEAR
40 DEGREES BELOW AVERAGE FOR MID NOVEMBER. TEMPERATURES WILL
REMAIN COLD WEDNESDAY NIGHT IN WHAT WILL BE THE COLDEST NIGHT THUS
FAR THIS SEASON WITH ACTUAL AIR TEMPERATURES FROM 5 BELOW ZERO TO
15 BELOW ZERO. COULD EVEN SEE SOME 20 BELOW READINGS IN LOW LYING
SHELTERED AREA AS SKIES WILL BE CLEAR AND WINDS WILL BE LIGHT.
.LONG TERM...(THURSDAY NIGHT THROUGH MONDAY)
ISSUED AT 345 AM MST TUE NOV 11 2014
WARMER TEMPERATURES WILL SPREAD BACK ACROSS THE CWA FRIDAY AS THE
COLD SFC AIRMASS OVER THE PLAINS MOVES EAST AND PRESSURES FALL
OVER THE HIGH PLAINS AHEAD OF THE NEXT UPPER SHORTWAVE THAT WILL
MOVE INTO THE NRN ROCKYS. THE MILDER TEMPS WILL BE SHORT-LIVED
HOWEVER AS THE NEXT SURGE OF COLD AIR WILL ARRIVE BY EARLY
SATURDAY. THERE SHOULD BE A POST-FRONTAL BAND OF MAINLY LIGHT
SNOW MOVE ACROSS THE CWA SATURDAY AS THE MAIN UPPER TROF MOVES
ACROSS BUT IT APPEARS IT WILL PROGRESS ACROSS FAIRLY QUICKLY SO
NOT A LOT OF SNOW EXPECTED WITH THIS SYSTEM. SFC HIGH SETTLES OVER
WY SAT NIGHT WITH VERY COLD TEMPS FOR SUNDAY MORNING...ESPECIALLY
IF SKIES CLEAR OUT. CHILLY DAY ON SUNDAY THEN A LITTLE WARMER AGAIN
MONDAY AS SOME RETURN FLOW SETS UP BEHIND DEPARTING SFC HIGH.
&&
.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z WEDNESDAY AFTERNOON)
ISSUED AT 1048 AM MST TUE NOV 11 2014
PERIODS OF MOSTLY LIGHT SNOW WILL CONTINUE THROUGH THE LATE
AFTERNOON HOURS FOR ALL SITES WITH VISIBILITIES PREVAILING IN THE
IFR FLIGHT CATEGORY RANGE WITH THE EXCEPTION OF KLAR WHICH WILL
PREVAIL IN THE LIFR RANGE JUST UNDER ONE MILE IN LIGHT TO
OCCASIONALLY MODERATE SNOW. WE MAY SEE BRIEF PERIODS OF MVFR
CEILINGS AND VISIBILITIES THROUGH 00Z...BUT NAM AND HRRR MODELS
SUGGEST THAT WE WONT SEE SIGNIFICANT IMPROVEMENTS TO ABOVE IFR
UNTIL MID TO LATE EVENING MOST SITES WITH MVFR/VFR EXPECTED TO
WORK IN FROM THE NORTH AS THE MAIN AREA OF LIGHT SNOW SHIFTS SOUTH
INTO COLORADO OVERNIGHT INTO EARLY WEDNESDAY.
&&
.FIRE WEATHER...
ISSUED AT 345 AM MST TUE NOV 11 2014
UNSEASONABLY COLD THROUGH THE REST OF THIS WEEK AS AN ARCTIC
AIRMASS REMAINS IN PLACE. LIGHT SNOW ACCUMLUATIONS WILL OCCUR OVER
MUCH OF THE AREA TODAY.
&&
.CYS WATCHES/WARNINGS/ADVISORIES...
WY...WINTER WEATHER ADVISORY UNTIL MIDNIGHT MST TONIGHT FOR WYZ106-
117-118.
NE...NONE.
&&
UPDATE...TJT
SHORT TERM...SML
LONG TERM...RE
AVIATION...JG
FIRE WEATHER...SMLHazardous weather outlook, Nov 11, 4:30 AM MST, 10 hours before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 430 AM MST TUE NOV 11 2014 WYZ106-117-118-121130- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- 430 AM MST TUE NOV 11 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT SNOW IS EXPECTED TO INCREASE OVER THE AREA THIS MORNING AND CONTINUE THROUGH THE AFTERNOON. A FEW INCHES OF ACCUMULATIONS ARE LIKELY AND A WINTER WEATHER ADVISORY IS IN EFFECT THROUGH THIS EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY COLD TEMPERATURES WILL CONTINUE THROUGH THURSDAY. THE NEXT BEST CHANCE FOR SNOW SHOULD BE SATURDAY AS ANOTHER COLD FRONT PASSES ACROSS THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. NEZ002-003-019>021-054-055-095-096-WYZ101>105-107>116-119-121130- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-NORTH LARAMIE RANGE- FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-EAST PLATTE COUNTY- GOSHEN COUNTY-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE- UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-LARAMIE VALLEY- SOUTH LARAMIE RANGE-EAST LARAMIE COUNTY- 430 AM MST TUE NOV 11 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN NEBRASKA...EAST CENTRAL WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT SOME LIGHT SNOW WILL FALL OVER MUCH OF THE AREA TODAY INTO THIS EVENING. ACCUMULATIONS ARE EXPECTED TO BE LIGHT. VERY COLD TEMPERATURES WILL CONTINUE THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY COLD TEMPERATURES WILL CONTINUE THROUGH THURSDAY. THE NEXT BEST CHANCE FOR SNOW SHOULD BE SATURDAY AS ANOTHER COLD FRONT PASSES ACROSS THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 11, 3:31 AM MST | Winter Weather Advisory | CYS | Albany, Laramie, Platte | 18 hr |
| Nov 11, 2:30 PM MST | Wind Chill Advisory | CYS | Albany, Carbon, Goshen, Laramie, Platte | 20 hr |
Nearby
Wind Chill Warnings in Wyoming, 2014Every wind chill warning in 2014
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.