Alert archive / Nebraska / Wind Chill Advisories in 2009
Wind Chill Advisory 2, NWS Cheyenne, WY
NWS Cheyenne, WY issued this wind chill advisory at Dec 9, 2009, 2:44 PM MST for 8 counties in Nebraska; 6 counties in Wyoming. It took effect at Dec 9, 2009, 7:00 PM MST. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Dec 9, 2009, 2:44 PM MST (21:44 UTC)
- In effect from
- Dec 9, 2009, 7:00 PM MST
- Expired
- Dec 10, 2009, 9:01 AM MST
- In force
- 14 hr
- Issued by
- NWS Cheyenne, WY
Counties Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE, Albany County, WY, Carbon County, WY, Converse County, WY, Laramie County, WY, Niobrara County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 104 km from the middle of the area, began a volume at 21:46 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
Denver, CO (KDNR), launched 12:00Z, 9.7 hours before the alert went out and 250 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
- 1018 m above ground
- 0-6 km bulk shear
- 86 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 260 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS45 KCYS 092144 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 244 PM MST WED DEC 9 2009 ...COLD TEMPERATURES WILL REMAIN OVER THE AREA THROUGH THURSDAY WITH STRONG WINDS OVER MUCH OF SOUTHEAST WYOMING... .TEMPERATURES AND WIND CHILL VALUES WILL REMAIN VERY COLD OVER THE REGION THROUGH THURSDAY. SOME MODERATION OF TEMPERATURES WILL CONTINUE DURING THAT TIME BUT WILL STILL BE WELL BELOW NORMAL EVEN ON THURSDAY. IN ADDITION...STRONG WEST WINDS WILL BE OVER MUCH OF SOUTHEAST WYOMING THROUGH THURSDAY. THE STRONG WINDS WILL PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW AND HAZARDOUS TRAVEL CONDITIONS. WYZ103>106-109>117-100600- /O.NEW.KCYS.WC.Y.0002.091210T0200Z-091210T1600Z/ /O.CON.KCYS.WW.Y.0033.000000T0000Z-091210T2100Z/ 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-LARAMIE VALLEY- 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...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER 244 PM MST WED DEC 9 2009 ...WINTER WEATHER ADVISORY FOR BLOWING SNOW REMAINS IN EFFECT UNTIL 2 PM MST THURSDAY... ...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 9 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 9 AM MST THURSDAY. A WINTER WEATHER ADVISORY FOR BLOWING SNOW REMAINS IN EFFECT UNTIL 2 PM MST THURSDAY. * TIMING: WINDS WILL CONTINUE TO BE STRONG OVER MUCH OF SOUTHEAST WYOMING THROUGH THURSDAY. WINDS WILL BE SUSTAINED AT 30 TO 45 MPH WITH GUSTS AS HIGH AS 65 MPH. THE STRONGEST WINDS WILL BE OVER AND NEAR THE LARAMIE AND SNOWY RANGES. ELSEWHERE...THE WINDS WILL GUST AS HIGH AS 50 MPH. * TOTAL SNOW ACCUMULATIONS: A FEW INCHES OF NEW SNOW ARE POSSIBLE OVER THE SNOWY RANGE THROUGH THURSDAY MORNING. LITTLE IF ANY ADDITIONAL SNOW WILL FALL OVER THE REST OF THE AREA. * WINDS/VISIBILITIES: THE STRONG WINDS TODAY THROUGH MID AFTERNOON THURSDAY WILL PRODUCE WIDESPREAD BLOWING AND DRIFTING SNOW. WIDESPREAD AREAS OF WIND GUSTS TO OVER 50 MPH WILL CREATE NEAR ZERO VISIBILITIES AT TIMES ESPECIALLY OVER AND NEAR THE MOUNTAINS. * WIND CHILL VALUES: 20 TO 30 BELOW ZERO IN MANY PLACES BETWEEN 7 PM THIS EVENING AND 9 AM THURSDAY MORNING. * IMPACTS: THE WIDESPREAD BLOWING AND DRIFTING SNOW WILL CREATE HAZARDOUS TRAVEL CONDITIONS WITH LOW VISIBILITIES THROUGH MID AFTERNOON THURSDAY. AREA ROADS WILL REMAIN SNOW PACKED AND SLICK. THE VERY COLD WIND CHILL VALUES WILL MAKE BEING OUTSIDE DANGEROUS FOR ANY EXTENDED PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. COMBINED WITH THE VERY COLD TEMPERATURES...GENERALLY 20 TO 30 DEGREES BELOW NORMAL...WIND CHILL VALUES WILL ALSO FALL TO VALUES WHICH MAKE BEING OUTSIDE FOR EXTENDED PERIODS OF TIME DANGEROUS. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH THE BITTERLY COLD TEMPERATURES WILL CAUSE EXCEPTIONAL STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. 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. && $$ NEZ002-003-019>021-054-055-095-096-WYZ101-102-100600- /O.NEW.KCYS.WC.Y.0002.091210T0200Z-091210T1600Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK 244 PM MST WED DEC 9 2009 ...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 9 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 9 AM MST THURSDAY. * WIND CHILL VALUES: 20 TO 30 BELOW ZERO IN MANY PLACES BETWEEN 7 PM THIS EVENING AND 9 AM THURSDAY MORNING. * IMPACTS: THE VERY COLD WIND CHILL VALUES WILL MAKE BEING OUTSIDE DANGEROUS FOR ANY EXTENDED PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$ WYZ119-100000- /O.EXT.KCYS.WW.Y.0033.000000T0000Z-091210T0000Z/ EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...BURNS...CARPENTER...ALBIN...PINE BLUFFS 244 PM MST WED DEC 9 2009 ...WINTER WEATHER ADVISORY HAS BEEN CANCELLED... BLOWING AND DRIFTING SNOW SHOULD NOT BE AS WIDESPREAD OVER THIS AREA AS PREVIOUSLY THOUGHT. FOR THAT REASON THE PREVIOUSLY ISSUED WINTER WEATHER ADVISORY FOR BLOWING SNOW HAS BEEN CANCELLED. && $$ WYZ107-118-100600- /O.CON.KCYS.WW.Y.0033.000000T0000Z-091210T2100Z/ EAST PLATTE COUNTY-CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER... GUERNSEY...CHEYENNE 244 PM MST WED DEC 9 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THURSDAY. * TIMING: WINDS WILL CONTINUE TO BE STRONG OVER MUCH OF SOUTHEAST WYOMING THROUGH THURSDAY. WINDS WILL BE SUSTAINED AT 25 TO 40 MPH WITH GUSTS AS HIGH AS 65 MPH BY 5 PM. THE STRONGEST WINDS WILL BE OVER AND NEAR THE LARAMIE RANGE. * WINDS/VISIBILITIES: THE STRONG WINDS THROUGH MID AFTERNOON THURSDAY WILL PRODUCE WIDESPREAD BLOWING AND DRIFTING SNOW. WIDESPREAD AREAS OF WIND GUSTS TO OVER 50 MPH WILL CREATE NEAR ZERO VISIBILITIES AT TIMES ESPECIALLY NEAR THE LARAMIE RANGE. * IMPACTS: THE WIDESPREAD BLOWING AND DRIFTING SNOW WILL CREATE HAZARDOUS TRAVEL CONDITIONS WITH LOW VISIBILITIES TODAY THROUGH MID AFTERNOON THURSDAY. AREA ROADS WILL REMAIN SNOW PACKED AND SLICK. THE VERY COLD WIND CHILL VALUES WILL MAKE BEING OUTSIDE DANGEROUS FOR ANY EXTENDED PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. COMBINED WITH THE VERY COLD TEMPERATURES...GENERALLY 20 TO 30 DEGREES BELOW NORMAL...WIND CHILL VALUES WILL ALSO FALL TO VALUES WHICH MAKE BEING OUTSIDE FOR EXTENDED PERIODS OF TIME DANGEROUS. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH THE BITTERLY COLD TEMPERATURES WILL CAUSE EXCEPTIONAL STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. && $$ WEILAND
4 follow-up statements
000 WWUS45 KCYS 092145 CCA WSWCYS URGENT - WINTER WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE CHEYENNE WY 244 PM MST WED DEC 9 2009 ...COLD TEMPERATURES WILL REMAIN OVER THE AREA THROUGH THURSDAY WITH STRONG WINDS OVER MUCH OF SOUTHEAST WYOMING... .TEMPERATURES AND WIND CHILL VALUES WILL REMAIN VERY COLD OVER THE REGION THROUGH THURSDAY. SOME MODERATION OF TEMPERATURES WILL CONTINUE DURING THAT TIME BUT WILL STILL BE WELL BELOW NORMAL EVEN ON THURSDAY. IN ADDITION...STRONG WEST WINDS WILL BE OVER MUCH OF SOUTHEAST WYOMING THROUGH THURSDAY. THE STRONG WINDS WILL PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW AND HAZARDOUS TRAVEL CONDITIONS. WYZ103>106-109>117-100600- /O.NEW.KCYS.WC.Y.0002.091210T0200Z-091210T1600Z/ /O.CON.KCYS.WW.Y.0033.000000T0000Z-091210T2100Z/ 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-LARAMIE VALLEY- 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...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER 244 PM MST WED DEC 9 2009 ...WINTER WEATHER ADVISORY FOR BLOWING SNOW REMAINS IN EFFECT UNTIL 2 PM MST THURSDAY... ...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 9 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 9 AM MST THURSDAY. A WINTER WEATHER ADVISORY FOR BLOWING SNOW REMAINS IN EFFECT UNTIL 2 PM MST THURSDAY. * TIMING: WINDS WILL CONTINUE TO BE STRONG OVER MUCH OF SOUTHEAST WYOMING THROUGH THURSDAY. WINDS WILL BE SUSTAINED AT 30 TO 45 MPH WITH GUSTS AS HIGH AS 65 MPH. THE STRONGEST WINDS WILL BE OVER AND NEAR THE LARAMIE AND SNOWY RANGES. ELSEWHERE...THE WINDS WILL GUST AS HIGH AS 50 MPH. * TOTAL SNOW ACCUMULATIONS: A FEW INCHES OF NEW SNOW ARE POSSIBLE OVER THE SNOWY RANGE THROUGH THURSDAY MORNING. LITTLE IF ANY ADDITIONAL SNOW WILL FALL OVER THE REST OF THE AREA. * WINDS/VISIBILITIES: THE STRONG WINDS TODAY THROUGH MID AFTERNOON THURSDAY WILL PRODUCE WIDESPREAD BLOWING AND DRIFTING SNOW. WIDESPREAD AREAS OF WIND GUSTS TO OVER 50 MPH WILL CREATE NEAR ZERO VISIBILITIES AT TIMES ESPECIALLY OVER AND NEAR THE MOUNTAINS. * WIND CHILL VALUES: 20 TO 30 BELOW ZERO IN MANY PLACES BETWEEN 7 PM THIS EVENING AND 9 AM THURSDAY MORNING. * IMPACTS: THE WIDESPREAD BLOWING AND DRIFTING SNOW WILL CREATE HAZARDOUS TRAVEL CONDITIONS WITH LOW VISIBILITIES THROUGH MID AFTERNOON THURSDAY. AREA ROADS WILL REMAIN SNOW PACKED AND SLICK. THE VERY COLD WIND CHILL VALUES WILL MAKE BEING OUTSIDE DANGEROUS FOR ANY EXTENDED PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. COMBINED WITH THE VERY COLD TEMPERATURES...GENERALLY 20 TO 30 DEGREES BELOW NORMAL...WIND CHILL VALUES WILL ALSO FALL TO VALUES WHICH MAKE BEING OUTSIDE FOR EXTENDED PERIODS OF TIME DANGEROUS. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH THE BITTERLY COLD TEMPERATURES WILL CAUSE EXCEPTIONAL STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. 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. && $$ NEZ002-003-019>021-054-055-095-096-WYZ101-102-100600- /O.NEW.KCYS.WC.Y.0002.091210T0200Z-091210T1600Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK 244 PM MST WED DEC 9 2009 ...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 9 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 9 AM MST THURSDAY. * WIND CHILL VALUES: 20 TO 30 BELOW ZERO IN MANY PLACES BETWEEN 7 PM THIS EVENING AND 9 AM THURSDAY MORNING. * IMPACTS: THE VERY COLD WIND CHILL VALUES WILL MAKE BEING OUTSIDE DANGEROUS FOR ANY EXTENDED PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF THE NOSE. && $$ WYZ118-WYZ119-100000- /O.CAN.KCYS.WW.Y.0033.000000T0000Z-091210T0000Z/ EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...BURNS...CARPENTER...ALBIN...PINE BLUFFS... CHEYENNE 244 PM MST WED DEC 9 2009 ...WINTER WEATHER ADVISORY HAS BEEN CANCELLED... BLOWING AND DRIFTING SNOW SHOULD NOT BE AS WIDESPREAD OVER THIS AREA AS PREVIOUSLY THOUGHT. FOR THAT REASON THE PREVIOUSLY ISSUED WINTER WEATHER ADVISORY FOR BLOWING SNOW HAS BEEN CANCELLED. && $$ WYZ107-100600- /O.CON.KCYS.WW.Y.0033.000000T0000Z-091210T2100Z/ EAST PLATTE COUNTY-CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER... GUERNSEY 244 PM MST WED DEC 9 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THURSDAY. * TIMING: WINDS WILL CONTINUE TO BE STRONG OVER MUCH OF SOUTHEAST WYOMING THROUGH THURSDAY. WINDS WILL BE SUSTAINED AT 25 TO 40 MPH WITH GUSTS AS HIGH AS 65 MPH BY 5 PM. THE STRONGEST WINDS WILL BE OVER AND NEAR THE LARAMIE RANGE. * WINDS/VISIBILITIES: THE STRONG WINDS THROUGH MID AFTERNOON THURSDAY WILL PRODUCE WIDESPREAD BLOWING AND DRIFTING SNOW. WIDESPREAD AREAS OF WIND GUSTS TO OVER 50 MPH WILL CREATE NEAR ZERO VISIBILITIES AT TIMES ESPECIALLY NEAR THE LARAMIE RANGE. * IMPACTS: THE WIDESPREAD BLOWING AND DRIFTING SNOW WILL CREATE HAZARDOUS TRAVEL CONDITIONS WITH LOW VISIBILITIES TODAY THROUGH MID AFTERNOON THURSDAY. AREA ROADS WILL REMAIN SNOW PACKED AND SLICK. THE VERY COLD WIND CHILL VALUES WILL MAKE BEING OUTSIDE DANGEROUS FOR ANY EXTENDED PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. COMBINED WITH THE VERY COLD TEMPERATURES...GENERALLY 20 TO 30 DEGREES BELOW NORMAL...WIND CHILL VALUES WILL ALSO FALL TO VALUES WHICH MAKE BEING OUTSIDE FOR EXTENDED PERIODS OF TIME DANGEROUS. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH THE BITTERLY COLD TEMPERATURES WILL CAUSE EXCEPTIONAL STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER...AND SHELTER. && $$ WEILAND
000 WWUS45 KCYS 100602 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 1102 PM MST WED DEC 9 2009 ...COLD TEMPERATURES WILL REMAIN OVER THE AREA THROUGH THURSDAY WITH STRONG WINDS OVER MUCH OF SOUTHEAST WYOMING... .TEMPERATURES AND WIND CHILL VALUES WILL REMAIN VERY COLD OVER THE REGION THROUGH THURSDAY. SOME MODERATION OF TEMPERATURES WILL CONTINUE DURING THAT TIME BUT WILL STILL BE WELL BELOW NORMAL EVEN ON THURSDAY. IN ADDITION...STRONG WEST WINDS WILL BE OVER MUCH OF SOUTHEAST WYOMING THROUGH THURSDAY. THE STRONG WINDS WILL PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW AND HAZARDOUS TRAVEL CONDITIONS. WYZ107-100715- /O.CAN.KCYS.WW.Y.0033.000000T0000Z-091210T2100Z/ EAST PLATTE COUNTY- INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER... GUERNSEY 1102 PM MST WED DEC 9 2009 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER WEATHER ADVISORY. BLOWING AND DRIFTING SNOW WILL NOT BE AS WIDESPREAD AS PREVIOUSLY THOUGHT OVER PLATTE COUNTY. FOR THAT REASON THE PREVIOUSLY ISSUED WINTER WEATHER ADVISORY FOR BLOWING SNOW HAS BEEN CANCELLED. $$ WYZ103>106-109>117-101230- /O.CON.KCYS.WC.Y.0002.000000T0000Z-091210T1600Z/ /O.CON.KCYS.WW.Y.0033.000000T0000Z-091210T2100Z/ 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-LARAMIE VALLEY- 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...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER 1102 PM MST WED DEC 9 2009 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THURSDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THURSDAY. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THURSDAY. * TIMING: WEST WINDS WILL CONTINUE TO BE STRONG OVER MUCH OF SOUTHEAST WYOMING THROUGH THURSDAY. WINDS WILL BE SUSTAINED AT 30 TO 45 MPH. GUSTS AS HIGH AS 65 MPH CAN BE EXPECTED OVER AND NEAR THE LARAMIE AND SNOWY RANGES. ELSEWHERE...THE WINDS WILL GUST AS HIGH AS 50 MPH. * TOTAL SNOW ACCUMULATIONS: A FEW INCHES OF NEW SNOW ARE POSSIBLE OVER THE SNOWY RANGE THROUGH THURSDAY MORNING. NO ADDITIONAL SNOW IS EXPECTED OVER THE REST OF THE AREA. * WINDS/VISIBILITIES: THE STRONG WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW THROUGH MID AFTERNOON THURSDAY WITH VISIBILITIES REDUCED BELOW A HALF MILE AT TIMES ESPECIALLY OVER AND NEAR THE MOUNTAINS. * WIND CHILL VALUES: 20 TO 30 BELOW ZERO IN MANY PLACES THROUGH 9 AM THURSDAY MORNING. * IMPACTS: THE WIDESPREAD BLOWING AND DRIFTING SNOW WILL CREATE HAZARDOUS TRAVEL CONDITIONS WITH LOW VISIBILITIES THROUGH MID AFTERNOON THURSDAY. AREA ROADS WILL REMAIN SNOW PACKED AND SLICK. THE VERY COLD WIND CHILL VALUES WILL MAKE BEING OUTSIDE DANGEROUS FOR ANY EXTENDED PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. COMBINED WITH THE VERY COLD TEMPERATURES...GENERALLY 20 TO 30 DEGREES BELOW NORMAL...WIND CHILL VALUES WILL ALSO FALL TO VALUES WHICH MAKE BEING OUTSIDE FOR EXTENDED PERIODS OF TIME DANGEROUS. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH THE BITTERLY COLD TEMPERATURES WILL CAUSE EXCEPTIONAL STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER AND SHELTER. 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-WYZ101-102-101230- /O.CON.KCYS.WC.Y.0002.000000T0000Z-091210T1600Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK 1102 PM MST WED DEC 9 2009 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THURSDAY... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THURSDAY. * WIND CHILL VALUES: 20 TO 30 BELOW ZERO IN MANY PLACES THROUGH 9 AM THURSDAY MORNING. * IMPACTS: THE VERY COLD WIND CHILL VALUES WILL MAKE BEING OUTSIDE DANGEROUS FOR ANY EXTENDED 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. && $$ JLH
000 WWUS45 KCYS 101225 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 525 AM MST THU DEC 10 2009 ...COLD TEMPERATURES WILL REMAIN OVER THE AREA THROUGH THIS MORNING WITH STRONG WINDS OVER MUCH OF SOUTHEAST WYOMING... .TEMPERATURES AND WIND CHILL VALUES WILL REMAIN VERY COLD OVER THE REGION THROUGH MID-MORNING. IN ADDITION...STRONG WEST WINDS WILL BE OVER MUCH OF SOUTHEAST WYOMING PRODUCING CONSIDERABLE BLOWING AND DRIFTING SNOW AND HAZARDOUS TRAVEL CONDITIONS. WYZ103>106-109>117-102100- /O.CON.KCYS.WC.Y.0002.000000T0000Z-091210T1600Z/ /O.CON.KCYS.WW.Y.0033.000000T0000Z-091210T2100Z/ 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-LARAMIE VALLEY- 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...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER 525 AM MST THU DEC 10 2009 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING. * TIMING: WEST WINDS WILL CONTINUE TO BE STRONG OVER MUCH OF SOUTHEAST WYOMING TODAY. WINDS WILL BE SUSTAINED AT 30 TO 45 MPH. GUSTS AS HIGH AS 65 MPH CAN BE EXPECTED OVER AND NEAR THE LARAMIE AND SNOWY RANGES. ELSEWHERE...THE WINDS WILL GUST AS HIGH AS 50 MPH. * TOTAL SNOW ACCUMULATIONS: LIGHT SNOW WILL OCCUR OVER THE SIERRA MADRE AND SNOWY RANGES THIS MORNING WITH LITTLE ACCUMULATION EXPECTED. NO ADDITIONAL SNOW IS EXPECTED OVER THE REST OF THE AREA. * WINDS/VISIBILITIES: THE STRONG WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW THROUGH MID AFTERNOON TODAY WITH VISIBILITIES REDUCED TO A HALF MILE AT TIMES ESPECIALLY OVER AND NEAR THE MOUNTAINS. * WIND CHILL VALUES: 20 TO 30 BELOW ZERO IN MANY PLACES THROUGH 9 AM THIS MORNING. * IMPACTS: THE WIDESPREAD BLOWING AND DRIFTING SNOW WILL CREATE HAZARDOUS TRAVEL CONDITIONS WITH LOW VISIBILITIES THROUGH MID AFTERNOON THURSDAY. AREA ROADS WILL REMAIN SNOW PACKED AND SLICK. THE VERY COLD WIND CHILL VALUES WILL MAKE BEING OUTSIDE DANGEROUS FOR ANY EXTENDED PERIOD OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. COMBINED WITH THE VERY COLD TEMPERATURES...GENERALLY 20 TO 30 DEGREES BELOW NORMAL...WIND CHILL VALUES WILL ALSO FALL TO VALUES WHICH MAKE BEING OUTSIDE FOR EXTENDED PERIODS OF TIME DANGEROUS. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH THE BITTERLY COLD TEMPERATURES WILL CAUSE EXCEPTIONAL STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER AND SHELTER. 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-WYZ101-102-101600- /O.CON.KCYS.WC.Y.0002.000000T0000Z-091210T1600Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK 525 AM MST THU DEC 10 2009 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING. * WIND CHILL VALUES: 20 TO 30 BELOW ZERO IN MANY PLACES THROUGH 9 AM THIS MORNING. * IMPACTS: THE VERY COLD WIND CHILL VALUES WILL MAKE BEING OUTSIDE DANGEROUS FOR ANY EXTENDED 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. && $$
000 WWUS45 KCYS 101601 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 901 AM MST THU DEC 10 2009 ...STRONG WINDS WILL CONTINUE ALONG AND WEST OF THE LARAMIE RANGE TODAY AND THE TEMPERATURES WILL CONTINUE TO SLOWLY MODERATE... .TEMPERATURES AND WIND CHILL VALUES WILL SLOWLY MODERATE OVER SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE THROUGH THE REST OF TODAY. IN ADDITION...STRONG WEST WINDS WILL CONTINUE OVER MUCH OF SOUTHEAST WYOMING TODAY ALONG AND WEST OF THE LARAMIE RANGE PRODUCING CONSIDERABLE BLOWING AND DRIFTING SNOW AND HAZARDOUS TRAVEL CONDITIONS. WYZ103>106-109>117-102100- /O.CAN.KCYS.WC.Y.0002.000000T0000Z-091210T1600Z/ /O.CON.KCYS.WW.Y.0033.000000T0000Z-091210T2100Z/ 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-LARAMIE VALLEY- 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...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER 901 AM MST THU DEC 10 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... ...WIND CHILL ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WIND CHILL ADVISORY. A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON. TEMPERATURES WILL CONTINUE TO SLOWLY MODERATE THE REST OF TODAY OVER SOUTHEAST WYOMING. EVEN THOUGH IT WILL BE WINDY...WIND CHILL VALUES WILL NOT BE AS COLD. WIND CHILL VALUES WILL RANGE FROM 5 BELOW ZERO TO 20 BELOW ZERO THE REST OF TODAY. WIND CHILL VALUES WILL NO LONGER MEET ADVISORY CRITERIA AND FOR THAT REASON THE WIND CHILL ADVISORY WILL EXPIRE AT 9 AM. * TIMING: WEST WINDS WILL CONTINUE TO BE STRONG OVER MUCH OF SOUTHEAST WYOMING THE REST OF TODAY. WINDS WILL BE SUSTAINED AT 30 TO 40 MPH WITH GUSTS AS HIGH AS 60 MPH OVER AND NEAR THE LARAMIE AND SNOWY RANGES. ELSEWHERE...THE WINDS WILL GUST AS HIGH AS 45 MPH. * TOTAL SNOW ACCUMULATIONS: FLURRIES WILL OCCUR OVER THE SIERRA MADRE AND SNOWY RANGES THIS MORNING WITH LITTLE ACCUMULATION EXPECTED. NO ADDITIONAL SNOW IS EXPECTED OVER THE REST OF THE AREA. * WINDS/VISIBILITIES: THE STRONG WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW THROUGH MID AFTERNOON TODAY WITH VISIBILITIES REDUCED TO A HALF MILE AT TIMES ESPECIALLY OVER AND NEAR THE MOUNTAINS. * WIND CHILL VALUES: 20 TO 30 BELOW ZERO IN MANY PLACES THROUGH 9 AM THIS MORNING. * IMPACTS: THE WIDESPREAD BLOWING AND DRIFTING SNOW WILL CREATE HAZARDOUS TRAVEL CONDITIONS WITH LOW VISIBILITIES THROUGH MID AFTERNOON THURSDAY. AREA ROADS WILL REMAIN SNOW PACKED AND SLICK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. COMBINED WITH THE VERY COLD TEMPERATURES...GENERALLY 20 TO 30 DEGREES BELOW NORMAL...WIND CHILL VALUES WILL ALSO FALL TO VALUES WHICH MAKE BEING OUTSIDE FOR EXTENDED PERIODS OF TIME DANGEROUS. MOVE LIVESTOCK...ESPECIALLY THE YOUNG...INTO SHELTERED AREAS SUCH AS BEHIND A WINDBREAK OR INTO A BARN. WIND...COUPLED WITH THE BITTERLY COLD TEMPERATURES WILL CAUSE EXCEPTIONAL STRESS ON LIVESTOCK. THIS INCREASES THE NEED FOR FOOD...WATER AND SHELTER. && $$ NEZ002-003-019>021-054-055-095-096-WYZ101-102-101715- /O.CAN.KCYS.WC.Y.0002.000000T0000Z-091210T1600Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK 901 AM MST THU DEC 10 2009 ...WIND CHILL ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WIND CHILL ADVISORY. TEMPERATURES WILL CONTINUE TO SLOWLY MODERATE THE REST OF TODAY OVER SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE. WIND CHILL VALUES BY LATE MORNING AND FOR THE REST OF THE DAY WILL BE FROM 10 BELOW ZERO TO 5 ABOVE ZERO. WIND CHILL VALUES WILL NO LONGER MEET ADVISORY CRITERIA AND FOR THAT REASON THE WIND CHILL ADVISORY WILL EXPIRE AT 9 AM. $$ WEILAND
What forecasters said that day
The local office's own words before this wind chill advisory 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 advisory went out at Dec 9, 2:31 PM MST, 13 minutes earlier.
Area forecast discussion, Dec 9, 2:31 PM MST, 13 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
231 PM MST WED DEC 9 2009
.SHORT TERM...TONIGHT THROUGH THURSDAY NIGHT...STRONG WINDS AND
BLOWING SNOW WILL BE COMMON OVER MUCH OF THE WYOMING PART OF THE
CWA FOR THIS PORTION OF THE FORECAST. THE COLD TEMPERATURES WILL
SLOWLY MODERATE THROUGH 12Z FRIDAY BUT WILL STILL REMAIN WELL
BELOW NORMAL. LOWS TONIGHT IN MOST PLACES WILL NOT BE AS COLD AS
LAST NIGHT...BUT ALONG WITH THE WINDS...WIND CHILL VALUES WILL
AGAIN LOWER TO WIND CHILL ADVISORY CRITERIA. WILL GO AHEAD AND
ISSUE A WIND CHILL ADVISORY OVER MUCH OF THE CWA FROM 02Z TO 16Z.
THE MAIN CONCERN WILL STILL BE THE WINDS AND BLOWING SNOW OVER
SOUTHEAST WYOMING THROUGH THURSDAY NIGHT. SOME ROADS...INCLUDING
INTERSTATE 80 HAVE BEEN CLOSED DUE TO THE BLOWING SNOW AS OF EARLY
THIS AFTERNOON. CONSIDERED AGAIN ISSUING A BLIZZARD WARNING...BUT
FOR NOW WILL STICK WITH THE GOING WINTER WEATHER ADVISORY FOR
BLOWING SNOW AND THE HIGH WIND WARNING THROUGH 21Z THURSDAY. WINDS
HAVE TOUCHED HIGH WIND CRITERIA AT TIMES SINCE THE MID MORNING AT
KBRX...KVDW AND KARL. WINDS WILL INCREASE OVER SOUTHEAST WYOMING
THIS EVENING AND CONTINUE FOR MUCH OF THURSDAY. WINDS SHOULD BE
THE STRONGEST OVER AND NEAR THE MOUNTAINS AND AFTER THE SHORTWAVE
TROUGH MOVES SOUTHEAST OF THE CWA EARLY TONIGHT. THE LOW LEVEL
HEIGHT DIFFERENCES ACROSS THE CWA DECREASE SOME BY 00Z FRIDAY AND
THEN INCREASE AGAIN THURSDAY NIGHT. THE NORTHWEST FLOW ALOFT IS
VERY FAST WITH A 110 KNOT JET BISECTING THE CWA THROUGH THURSDAY
NIGHT. AT 700 MB THE MODELS HAVE 40 TO 45 KNOTS OVER THE AREA
THROUGH THURSDAY NIGHT. THE PREVIOUSLY MENTIONED SHORTWAVE TROUGH
WILL PRODUCE LIGHT SNOW OVER THE SNOWY RANGE THROUGH TONIGHT WITH
SEVERAL INCHES OF NEW SNOW LIKELY.
.LONG TERM...FRIDAY THROUGH NEXT WEDNESDAY...MODELS IN GOOD
AGREEMENT LATE THIS WEEK AND INTO THIS WEEKEND...SHOWING MAINLY
ZONAL FLOW AND WINDY CONDITIONS THROUGH THE PERIOD AS THE ARCTIC
AIRMASS...CURRENTLY OVER THE ERN TWO THIRDS OF THE UNITED STATES
AND CANADA...SHIFTS NORTHEASTWARD. A PACIFIC UPPER LEVEL TROUGH
IS EXPECTED TO PUSH INTO THE INTERMOUNTAIN WEST SATURDAY
NIGHT...RESULTING IN SOME MOUNTAIN SNOW SATURDAY AND SUNDAY. CAN
NOT RULE OUT SOME LIGHT SNOW IN THE LOWER ELEVATIONS OF WYOMING
AND NEBRASKA PANHANDLE AS WELL WITH THE LEFT EXIT REGION OF A
STRONG JET OVER THE AREA...BUT EXPECT ACCUMULATING SNOWFALL TO
REMAIN IN THE MOUNTAINS WHERE 2 TO 5 INCHES ARE POSSIBLE THROUGH
SUNDAY. THE MAIN IMPACT THIS PERIOD WILL BE STRONG WEST TO
SOUTHWEST WINDS OVER THE HIGHER ELEVATIONS OF WYOMING ALONG AND
WEST OF THE LARAMIE RANGE...WITH HIGH WIND CRITERIA POSSIBLE
FRIDAY NIGHT AS A LEE-SIDE TROUGH DEVELOPS OVER THE HIGH PLAINS
AND 700MB WINDS APPROACH 60 KTS. OTHERWISE...CONTINUED THE SLIGHT
WARMING TREND INTO THE WEEKEND WITH TEMPS INCREASING TO NEAR
NORMAL BY SATURDAY...ESPECIALLY OVER THE HIGH PLAINS. TEMPS ARE
EXPECTED TO REMAIN BELOW NORMAL IN THE VALLEYS WEST OF THE LARAMIE
RANGE WITH A WEAK VALLEY TEMP INVERSION EXPECTED INTO SATURDAY.
INCREASED POP...ESPECIALLY OVER THE MOUNTAINS WITH UPSLOPE FLOW
EXPECTED LATE SATURDAY AND SUNDAY.
FOR EARLY NEXT WEEK...MODEL SOLUTIONS DIVERGE AS AN ARCTIC COLD
FRONT MOVES ACROSS WESTERN CANADA AND ALONG THE U.S. BORDER. ECMWF
IS THE WARMEST SOLUTION...SHOWING THE ARCTIC AIRMASS REMAINING WELL
NORTH OF THE AREA AS IT QUICKLY PUSHES EAST. HOWEVER...THE GEM AND
GFS SHOW THE ARCTIC COLD FRONT AND ASSOCIATED UPPER LEVEL TROUGH
DIGGING SOUTHEAST INTO WYOMING MONDAY AND MONDAY NIGHT...WITH 700MB
TEMPS LOWERING TO BELOW -20C AND SOME LIGHT SNOW SHOWERS. GFS
ENSEMBLE FORECASTS IN GOOD AGREEMENT WITH ONLY ONE PERTURBATION
SIMILAR TO THE ECMWF. KEPT SOME SNOW SHOWERS IN THE MOUNTAINS
THROUGH WEDNESDAY. ALSO LOWERED MAX AND MIN TEMPS EARLY NEXT
WEEK...MAINLY OVER THE NEBRASKA PANHANDLE WITH HIGHS IN THE 20S AND
30S AND LOWS IN THE SINGLE DIGITS AND TEENS. ALTHOUGH IF THE GEM
VERIFIES...MAY NEED TO LOWER TEMPS SIGNIFICANTLY ACROSS THE ENTIRE
AREA. KEPT BREEZY TO WINDY CONDITIONS OVER THE HIGHER ELEVATIONS OF
WYOMING AND THE HIGH PLAINS WITH A STRONG LLVL PRESSURE GRADIENT
EXPECTED.
&&
.AVIATION...THE SNOWY RANGE WILL BE OBSCURED THROUGH THURSDAY
MORNING. OTHERWISE...VFR CONDITIONS WILL BE COMMON OVER THE CWA
THROUGH 12Z FRIDAY. STRONG WESTERLY SURFACE WINDS WILL GUST AS
HIGH AS 50 KNOTS OVER AND NEAR THE MOUNTAINS THROUGH THURSDAY NIGHT
AND WILL PRODUCE BLOWING SNOW. THE BLOWING SNOW WILL REDUCE
VISIBILITIES FREQUENTLY TO MVFR VALUES IN BLOWING SNOW AT KRWL...
KLAR AND KEAN WITH BRIEF IFR VISIBILITIES. THE FAST NORTHWEST WIND
FLOW WILL BE OVER THE CWA THROUGH THURSDAY NIGHT AND WILL CONTINUE
TO PRODUCE MOUNTAIN WAVES TO THE LEE OF THE SNOWY RANGE AND LARAMIE
PEAK.
&&
.FIRE WEATHER...WITH THE COLD CONDITIONS AND SNOW COVER...FIRE
WEATHER CONCERNS WILL BE MINIMAL OVER THE CWA THROUGH FRIDAY.
WESTERLY SURFACE WINDS WILL BE STRONG OVER MUCH OF SOUTHEAST WYOMING
THROUGH FRIDAY WITH SOME GUSTS BETWEEN 50 AND 60 MPH...ESPECIALLY
OVER AND NEAR THE MOUNTAINS. TEMPERATURES WILL CONTINUE TO MODERATE
AND WILL RETURN TO AT OR ABOVE NORMAL OVER THE WEEKEND.
&&
.CYS WATCHES/WARNINGS/ADVISORIES...
WY...WINTER WEATHER ADVISORY UNTIL 2 PM THURSDAY FOR WYZ103-WYZ104-
WYZ105-WYZ106-WYZ109-WYZ110-WYZ111-WYZ112-WYZ113-WYZ114-
WYZ115-WYZ116-WYZ117.
HIGH WIND WARNING UNTIL 2 PM THURSDAY FOR WYZ106-WYZ117.
WIND CHILL ADVISORY FROM 7 PM WEDNESDAY TO 9 AM THURSDAY FOR
WYZ101-WYZ102-WYZ103-WYZ104-WYZ105-WYZ106-WYZ109-WYZ110-
WYZ111-WYZ112-WYZ113-WYZ114-WYZ115-WYZ116-WYZ117.
HIGH WIND WARNING UNTIL 2 PM THURSDAY FOR WYZ110-WYZ116.
WINTER WEATHER ADVISORY UNTIL 5 PM WEDNESDAY FOR WYZ107-WYZ118-
WYZ119.
NE...WIND CHILL ADVISORY FROM 7 PM WEDNESDAY TO 9 AM THURSDAY FOR
NEZ002-NEZ003-NEZ019-NEZ020-NEZ021-NEZ054-NEZ055-NEZ095-
NEZ096.
&&
SHORT TERM/AVIATION...WEILAND
LONG TERM...TJTHazardous weather outlook, Dec 9, 2:16 PM MST, 28 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 216 PM MST WED DEC 9 2009 WYZ103>107-109>119-101330- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE 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-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- 216 PM MST WED DEC 9 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL WYOMING... SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT STRONG WESTERLY WINDS WILL OCCUR THROUGH TONIGHT OVER MUCH OF SOUTHEAST WYOMING. A HIGH WIND WARNING IS IN EFFECT FOR THE NORTHERN SNOWY RANGE FOOTHILLS AND THE SOUTHERN LARAMIE RANGE THROUGH TONIGHT FOR WINDS SUSTAINED 30 TO 45 MPH WITH GUSTS TO AROUND 60 MPH. THESE STRONG WINDS WILL DEVELOP NEAR BORDEAUX AND THE SOUTHERN LARAMIE RANGE FOOTHILLS EARLY THIS EVENING AND OVERNIGHT AMD A HIGH WIND WARNING IS IN EFFECT FOR THAT AREA STARTING AT 5 PM. ELSEWHERE...WINDS SUSTAINED AT 25 TO 35 MPH WITH GUSTS AS HIGH AS 50 MPH CAN BE EXPECTED THROUGH TONIGHT. THOSE STRONG WINDS WILL PRODUCE WIDESPREAD BLOWING AND DRIFTING SNOW WITH VISIBILITIES DROPPING TO NEAR ZERO AT TIMES MAINLY OVER AND NEAR THE MOUNTAINS. A WINTER WEATHER ADVISORY FOR BLOWING SNOW REMAIONS IN EFFECT THROUGH TONIGHT FOR AREAS ALONG AND WEST OF THE LARAMIE RANGE. WIND CHILL VALUES WILL ALSO DROP AGAIN TO BETWEEN 20 AND 30 BELOW ZERO IN MANY AREAS. A WIND CHILL ADVISORY IS IN EFFECT STARTING AT 7 PM. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY STRONG WESTERLY WINDS WILL CONTINUE THROUGH THURSDAY PRODUCING WIDESPREAD BLOWING AND DRIFTING SNOW. A WINTER WEATHER ADVISORY FOR BLOWING SNOW WILL REMAIN IN EFFECT UNTIL 2 PM. THE WINDS WILL GUST AS HIGH AS 60 MPH OVER AND NEAR THE MOUNTAINS AND A HIGH WIND WARNING ALSO REMAINS IN EFFECT UNTIL THAT TIME. WIND CHILL VALUES WILL BE BETWEEN 20 AND 30 BELOW ZERO UNTIL 9 AM AND THE WIND CHILL ADVISORY IS IN PLACE THROUGH THAT TIME IN MOST PLACES. THE STRONG WINDS WILL CONTINUE THROUGH EARLY NEXT WEEK...ESPECIALLY OVER AND NEAR THE MOUNTAINS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE NEZ002-003-019>021-054-055-095-096-WYZ101-102-108-101330- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-GOSHEN COUNTY- 216 PM MST WED DEC 9 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE AND EAST CENTRAL WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT TONIGHT WILL AGAIN BE VERY COLD WITH WIND CHILL VALUES FALLING TO BETWEEN 20 AND 30 BELOW ZERO. A WIND CHILL ADVISORY IS IN EFFECT STARTING AT 7 PM. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY WIND CHILL VALUES WILL BE BETWEEN 20 AND 30 BELOW ZERO OVER THE AREA THROUGH 9 AM THURSDAY. THE WIND CHILL ADVISORY REMAINS IN EFFECT THROUGH THAT TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE WEILAND
In the hours before
Local storm report, Dec 9, 9:06 AM MST, 5 hours 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
906 AM MST WED DEC 09 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 AM EXTR WIND CHILL DOUGLAS 42.76N 105.39W
12/09/2009 M19 F CONVERSE WY ASOS
0700 AM EXTREME COLD DOUGLAS 42.76N 105.39W
12/09/2009 M-22 F CONVERSE WY ASOS
0800 AM EXTREME COLD DOUGLAS 42.76N 105.39W
12/09/2009 M-23 F CONVERSE WY ASOS
0700 AM EXTREME COLD DEER CREEK 42.83N 105.78W
12/09/2009 E-22 F CONVERSE WY DEPT OF HIGHWAYS
0800 AM EXTR WIND CHILL DEER CREEK 42.83N 105.78W
12/09/2009 E-15 F CONVERSE WY DEPT OF HIGHWAYS
0800 AM EXTR WIND CHILL RAWLINS 41.78N 107.23W
12/09/2009 M-27 F CARBON WY ASOS
0800 AM EXTR WIND CHILL RAWLINS 41.78N 107.23W
12/09/2009 E-24 F CARBON WY ASOS
0700 AM EXTR WIND CHILL ARLINGTON 41.59N 106.21W
12/09/2009 M-34 F CARBON WY DEPT OF HIGHWAYS
0800 AM EXTR WIND CHILL ARLINGTON 41.59N 106.21W
12/09/2009 E-31 F CARBON WY DEPT OF HIGHWAYS
0800 AM EXTR WIND CHILL ESTERBROOK 42.41N 105.36W
12/09/2009 E-18 F CONVERSE WY DEPT OF HIGHWAYS
0800 AM EXTR WIND CHILL LARAMIE 41.31N 105.58W
12/09/2009 M-28 F ALBANY WY ASOS
0800 AM EXTR WIND CHILL VEDAUWOO 41.15N 105.40W
12/09/2009 E-36 F ALBANY WY DEPT OF HIGHWAYS
0800 AM EXTR WIND CHILL PUMPKIN VINE 41.05N 105.46W
12/09/2009 E-30 F ALBANY WY DEPT OF HIGHWAYS
&&
DDEALLocal storm report, Dec 9, 9:27 AM MST, 5 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
927 AM MST WED DEC 09 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0546 AM NON-TSTM WND GST ARLINGTON 41.59N 106.21W
12/09/2009 E65 MPH CARBON WY DEPT OF HIGHWAYS
THE HIGH SISTAINED WIND 40 TO 45 MPH WITH GUSTS 60 TO 65
MPH BETWEEN 0546 AM THROUGH 0741 AM.
0602 AM NON-TSTM WND DMG VEDAUWOO 41.15N 105.40W
12/09/2009 ALBANY WY DEPT OF HIGHWAYS
WIND SPEEDS AT 40 TO 50 MPH WITH GUSTS TO 65 MPH BETWEEN
6 AM TO 9 AM.
&&
DDEALLocal storm report, Dec 9, 9:27 AM MST, 5 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHEYENNE WY
927 AM MST WED DEC 09 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0546 AM NON-TSTM WND GST ARLINGTON 41.59N 106.21W
12/09/2009 E65 MPH CARBON WY DEPT OF HIGHWAYS
THE HIGH SUSTAINED WIND 40 TO 45 MPH WITH GUSTS 60 TO 65
MPH BETWEEN 0546 AM THROUGH 0741 AM.
0602 AM NON-TSTM WND GST VEDAUWOO 41.15N 105.40W
12/09/2009 ALBANY WY DEPT OF HIGHWAYS
WIND SPEEDS AT 40 TO 50 MPH WITH GUSTS TO 65 MPH BETWEEN
6 AM TO 9 AM.
&&
DDEALThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 9, 3:19 AM MST | High Wind Watch | CYS | Albany, Carbon, Laramie, Platte | 6 hr |
| Dec 9, 5:33 AM MST | High Wind Warning | CYS | Albany, Carbon, Laramie, Platte | 35 hr |
Nearby
Wind Chill Advisories in Nebraska, 2009Wind Chill Advisories in Wyoming, 2009Every wind chill advisory in 2009
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.