Alert archive / Nebraska / Wind Advisories in 2015
Wind Advisory 1, NWS Cheyenne, WY
NWS Cheyenne, WY issued this wind advisory at Jan 5, 2015, 1:34 AM MST for 8 counties in Nebraska. It took effect at Jan 5, 2015, 10:00 AM MST. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jan 5, 2015, 1:34 AM MST (08:34 UTC)
- In effect from
- Jan 5, 2015, 10:00 AM MST
- Expired
- Jan 5, 2015, 1:47 PM MST
- In force
- 4 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
The radar
The Cheyenne radar (KCYS), 142 km from the middle of the area, began a volume at 08:36 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 (KDEN), launched 00:00Z, 8.6 hours before the alert went out and 223 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
- 2140 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 450 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
742 WWUS75 KCYS 050834 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 134 AM MST MON JAN 5 2015 ...WIDESPREAD AND POTENTIALLY VERY DANGEROUS HIGH WIND EVENT TAKING SHAPE THROUGH MONDAY NIGHT... .STRONG WINDS HAVE ALREADY DEVELOPED IN THE WIND PRONE AREAS OF SOUTHEAST WYOMING WITH WESTERLY WINDS GUSTING AS HIGH AS 60 MPH ALONG PORTIONS OF INTERSTATE 80. A STRENGTHENING PRESSURE GRADIENT COMBINED WITH VERY STRONG FLOW JUST ABOVE THE SURFACE WILL ALLOW WINDS TO SPREAD ACROSS THE REMAINDER OF SOUTHEAST WYOMING THIS MORNING...BECOMING VERY STRONG BY EARLY AFTERNOON. WINDS OVER THE PLAINS WILL DIMINISH AFTER SUNSET...BUT WILL REMAIN VERY STRONG THROUGH EARLY TUESDAY MORNING OVER THE TYPICAL WIND PRONE AREAS SUCH AS ARLINGTON...BORDEAUX...AND INTERSTATE 80 BETWEEN LARAMIE AND CHEYENNE. THIS IS A VERY DANGEROUS SITUATION...ESPECIALLY FOR MOTORISTS TRAVELING ALONG INTERSTATE 80 AND INTERSTATE 25 IN SOUTHEAST WYOMING. WYZ102-108-119-060000- /O.UPG.KCYS.HW.A.0002.150105T1700Z-150106T0100Z/ /O.EXA.KCYS.HW.W.0001.150105T1700Z-150106T0100Z/ NIOBRARA COUNTY-GOSHEN COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...LUSK...TORRINGTON...BURNS...CARPENTER... ALBIN...PINE BLUFFS 134 AM MST MON JAN 5 2015 ...HIGH WIND WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MST THIS EVENING... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MST THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * TIMING...WINDS WILL INCREASE THIS MORNING AND WILL BECOME STRONG BY AFTERNOON. THE WINDS ARE EXPECTED TO DIMINISH AFTER SUNSET ON MONDAY. * WINDS...SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 60 MPH. A FEW HIGHER GUSTS ARE POSSIBLE. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. * IMPACTS...MAINLY TO TRANSPORTATION. TRAVEL ON INTERSTATE 80 FROM PINE BLUFFS TO CHEYENNE COULD BE SEVERELY IMPACTED. SEVERE CROSS WINDS THAT COULD LEAD TO BLOWOFFS AND BLOW OVERS OF HIGH PROFILE AND LIGHT WEIGHT VEHICLES ARE POSSIBLE. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ WYZ106-116-117-060000- /O.CON.KCYS.HW.W.0001.000000T0000Z-150106T1200Z/ CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...BORDEAUX...VEDAUWOO...BUFORD... PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER 134 AM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... * TIMING...WINDS WILL CONTINUE THROUGH EARLY TUESDAY MORNING. * WINDS...WEST 40 TO 50 MPH WITH GUSTS TO 70 MPH. A FEW GUSTS IN EXCESS OF 80 MPH ARE POSSIBLE TODAY. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. THIS IS A VERY DANGEROUS SITUATION. * IMPACTS...TRAVEL ALONG INTERSTATE 80 OVER THE SOUTHERN LARAMIE RANGE BETWEEN CHEYENNE AND LARAMIE AS WELL AS INTERSTATE 25 SOUTH OF WHEATLAND NEAR BORDEAUX WILL BE IMPACTED. DANGEROUS CROSS WINDS WILL LEAD TO EXTREME BLOWOVER AND BLOWOFF RISK FOR ALL TRAFFIC THROUGH THESE AREAS. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ WYZ103>105-109-113-115-060000- /O.CON.KCYS.HW.W.0001.150105T0900Z-150106T0100Z/ NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL CARBON COUNTY- UPPER NORTH PLATTE RIVER BASIN-LARAMIE VALLEY- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS... SINCLAIR...HANNA...SARATOGA...ENCAMPMENT...RIVERSIDE...LARAMIE 134 AM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * TIMING...WINDS WILL BE STRONG TODAY. THE WINDS ARE EXPECTED TO DIMINISH AFTER SUNSET THIS EVENING. * WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 65 MPH. A FEW HIGHER GUSTS ARE POSSIBLE. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. * IMPACTS...MAINLY TO TRANSPORTATION. TRAVEL ON INTERSTATE 80 FROM LARAMIE TO RAWLINS COULD BE SEVERELY IMPACTED. SEVERE CROSS WINDS THAT COULD LEAD TO BLOWOFFS AND BLOW OVERS OF HIGH PROFILE AND LIGHT WEIGHT VEHICLES ARE POSSIBLE. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ WYZ101-107-118-060000- /O.CON.KCYS.HW.W.0001.150105T1700Z-150106T0100Z/ CONVERSE COUNTY LOWER ELEVATIONS-EAST PLATTE COUNTY- CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...GLENDO... WHEATLAND...CHUGWATER...GUERNSEY...CHEYENNE 134 AM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MST THIS EVENING... * TIMING...WINDS WILL INCREASE THIS MORNING AND BECOME VERY STRONG BY EARLY AFTERNOON. THE WINDS ARE EXPECTED TO DIMINISH AFTER SUNSET ON MONDAY. * WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 65 MPH. A FEW HIGHER GUSTS ARE POSSIBLE. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. * IMPACTS...MAINLY TO TRANSPORTATION. TRAVEL ON INTERSTATE 80 FROM PINE BLUFFS TO CHEYENNE AND INTERSTATE 25 FROM THE COLORADO BORDER TO DOUGLAS COULD BE SEVERELY IMPACTED. SEVERE CROSS WINDS THAT COULD LEAD TO BLOWOFFS AND BLOW OVERS OF HIGH PROFILE AND LIGHT WEIGHT VEHICLES ARE POSSIBLE. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ NEZ002-003-019>021-054-055-095-096-060000- /O.NEW.KCYS.WI.Y.0001.150105T1700Z-150106T0100Z/ 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 134 AM MST MON JAN 5 2015 ...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MST THIS EVENING... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MST THIS EVENING. * TIMING...WINDS WILL INCREASE LATE THIS MORNING AND CONTINUE THROUGH THE AFTERNOON. * WINDS...WEST TO SOUTHWEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. * IMPACTS...MAINLY TO TRANSPORTATION. PEOPLE TRAVELING SHOULD BE PARTICULARLY CAUTIOUS...ESPECIALLY ON NORTH TO SOUTH ORIENTED ROADS DUE TO STRONG CROSSWINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ RUBIN
3 follow-up statements
075 WWUS75 KCYS 051809 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 1109 AM MST MON JAN 5 2015 ...WIDESPREAD AND DANGEROUS HIGH WIND EVENT TO CONTINUE THROUGH TONIGHT... .STRONG WINDS HAVE DEVELOPED ACROSS MUCH OF SOUTHEAST WYOMING LATE THIS MORNING WITH WIND GUSTS IN EXCESS OF 60 MPH AT MANY LOCATIONS. AN IMPRESSIVE PRESSURE GRADIENT COMBINED WITH VERY STRONG FLOW JUST ABOVE THE SURFACE WILL CONTINUE TO CREATE THE POTENTIAL FOR WIND GUSTS BETWEEN 80 AND 90 MPH...PARTICULARLY IN THE WIND PRONE LOCATIONS OF ARLINGTON...BORDEAUX...AND INTERSTATE 80 BETWEEN CHEYENNE AND LARAMIE. WINDS WILL DIMINISH OVER THE PLAINS AFTER SUNSET...BUT WILL REMAIN STRONG IN THE WIND PRONE AREAS THROUGH EARLY TUESDAY MORNING. THIS IS A VERY DANGEROUS SITUATION...ESPECIALLY FOR MOTORISTS TRAVELING ALONG INTERSTATES 80 AND 25 IN SOUTHEAST WYOMING. IN ADDITION TO THE WIND...AREAS OF BLOWING SNOW ARE CREATING SPOTS AND AREAS OF VERY LOW VISIBILITY IN BLOWING SNOW. IF ROADS ARE NOT CLOSED...TRAVEL IS HIGHLY DISCOURAGED. WYZ106-116-117-061200- /O.CON.KCYS.HW.W.0001.000000T0000Z-150106T1200Z/ CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...BORDEAUX...VEDAUWOO...BUFORD... PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER 1109 AM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... * TIMING...WINDS WILL CONTINUE THROUGH EARLY TUESDAY MORNING. * WINDS...WEST 40 TO 50 MPH WITH GUSTS TO 75 MPH. A FEW GUSTS IN BETWEEN 80 AND 90 MPH ARE LIKELY TODAY...ESPECIALLY NEAR BORDEAUX. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. THIS IS A VERY DANGEROUS SITUATION. * IMPACTS...TRAVEL ALONG INTERSTATE 80 OVER THE SOUTHERN LARAMIE RANGE BETWEEN CHEYENNE AND LARAMIE AS WELL AS INTERSTATE 25 SOUTH OF WHEATLAND NEAR BORDEAUX WILL BE IMPACTED. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. INTERSTATE 80 HAS BEEN CLOSED DUE TO WINTER CONDITIONS. THE WYOMING DEPARTMENT OF TRANSPORTATION HAS CLOSED INTERSTATE 25 TO LIGHT WEIGHT AND HIGH PROFILE VEHICLES BETWEEN DOUGLAS AND THE COLORADO STATE LINE DUE TO AN EXTREME BLOWOVER RISK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ WYZ103>105-109-113-115-060100- /O.CON.KCYS.HW.W.0001.000000T0000Z-150106T0100Z/ NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL CARBON COUNTY- UPPER NORTH PLATTE RIVER BASIN-LARAMIE VALLEY- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS... SINCLAIR...HANNA...SARATOGA...ENCAMPMENT...RIVERSIDE...LARAMIE 1109 AM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * TIMING...VERY STRONG WINDS WILL CONTINUE THROUGH SUNSET. * WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 65 MPH. A FEW HIGHER GUSTS ARE POSSIBLE. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. * IMPACTS...MAINLY TO TRANSPORTATION. TRAVEL ON INTERSTATE 80 FROM LARAMIE TO RAWLINS COULD BE SEVERELY IMPACTED. SEVERE CROSS WINDS THAT COULD LEAD TO BLOWOFFS AND BLOW OVERS OF HIGH PROFILE AND LIGHT WEIGHT VEHICLES ARE POSSIBLE. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. INTERSTATE 80 HAS BEEN CLOSED ACROSS MUCH OF SOUTHEAST WYOMING EAST OF RAWLINS DUE TO DANGEROUS WINTER DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ WYZ101-102-107-108-118-119-060100- /O.CON.KCYS.HW.W.0001.000000T0000Z-150106T0100Z/ CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL LARAMIE COUNTY- EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...GLENDO... WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON...CHEYENNE... BURNS...CARPENTER...ALBIN...PINE BLUFFS 1109 AM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * TIMING...VERY STRONG WINDS WILL CONTINUE THROUGH SUNSET. * WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 65 MPH. A FEW HIGHER GUSTS ARE POSSIBLE. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. * IMPACTS...MAINLY TO TRANSPORTATION. TRAVEL ON INTERSTATE 80 FROM PINE BLUFFS TO CHEYENNE AND INTERSTATE 25 FROM THE COLORADO BORDER TO DOUGLAS COULD BE SEVERELY IMPACTED. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. THE WYOMING DEPARTMENT OF TRANSPORTATION HAS CLOSED INTERSTATE 25 TO LIGHT WEIGHT AND HIGH PROFILE VEHICLES BETWEEN DOUGLAS AND THE COLORADO STATE LINE DUE TO AN EXTREME BLOWOVER RISK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ NEZ002-003-019>021-054-055-095-096-060100- /O.CON.KCYS.WI.Y.0001.000000T0000Z-150106T0100Z/ 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 1109 AM MST MON JAN 5 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * TIMING...WINDS WILL INCREASE THIS AFTERNOON AND CONTINUE THROUGH SUNSET. * WINDS...WEST TO SOUTHWEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. * IMPACTS...MAINLY TO TRANSPORTATION. PEOPLE TRAVELING SHOULD BE PARTICULARLY CAUTIOUS...ESPECIALLY ON NORTH TO SOUTH ORIENTED ROADS DUE TO STRONG CROSSWINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ HAMMER
008 WWUS75 KCYS 051810 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 1110 AM MST MON JAN 5 2015 ...WIDESPREAD AND DANGEROUS HIGH WIND EVENT TO CONTINUE THROUGH TONIGHT... .STRONG WINDS HAVE DEVELOPED ACROSS MUCH OF SOUTHEAST WYOMING LATE THIS MORNING WITH WIND GUSTS IN EXCESS OF 60 MPH AT MANY LOCATIONS. AN IMPRESSIVE PRESSURE GRADIENT COMBINED WITH VERY STRONG FLOW JUST ABOVE THE SURFACE WILL CONTINUE TO CREATE THE POTENTIAL FOR WIND GUSTS BETWEEN 80 AND 90 MPH...PARTICULARLY IN THE WIND PRONE LOCATIONS OF ARLINGTON...BORDEAUX...AND INTERSTATE 80 BETWEEN CHEYENNE AND LARAMIE. WINDS WILL DIMINISH OVER THE PLAINS AFTER SUNSET...BUT WILL REMAIN STRONG IN THE WIND PRONE AREAS THROUGH EARLY TUESDAY MORNING. THIS IS A VERY DANGEROUS SITUATION...ESPECIALLY FOR MOTORISTS TRAVELING ALONG INTERSTATES 80 AND 25 IN SOUTHEAST WYOMING. IN ADDITION TO THE WIND...AREAS OF BLOWING SNOW ARE CREATING SLICK SPOTS AND AREAS OF VERY LOW VISIBILITY IN BLOWING SNOW. IF ROADS ARE NOT CLOSED...TRAVEL IS HIGHLY DISCOURAGED. WYZ106-116-117-061200- /O.CON.KCYS.HW.W.0001.000000T0000Z-150106T1200Z/ CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...BORDEAUX...VEDAUWOO...BUFORD... PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER 1110 AM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... * TIMING...WINDS WILL CONTINUE THROUGH EARLY TUESDAY MORNING. * WINDS...WEST 40 TO 50 MPH WITH GUSTS TO 75 MPH. A FEW GUSTS IN BETWEEN 80 AND 90 MPH ARE LIKELY TODAY...ESPECIALLY NEAR BORDEAUX. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. THIS IS A VERY DANGEROUS SITUATION. * IMPACTS...TRAVEL ALONG INTERSTATE 80 OVER THE SOUTHERN LARAMIE RANGE BETWEEN CHEYENNE AND LARAMIE AS WELL AS INTERSTATE 25 SOUTH OF WHEATLAND NEAR BORDEAUX WILL BE IMPACTED. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. INTERSTATE 80 HAS BEEN CLOSED DUE TO WINTER CONDITIONS. THE WYOMING DEPARTMENT OF TRANSPORTATION HAS CLOSED INTERSTATE 25 TO LIGHT WEIGHT AND HIGH PROFILE VEHICLES BETWEEN DOUGLAS AND THE COLORADO STATE LINE DUE TO AN EXTREME BLOWOVER RISK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ WYZ103>105-109-113-115-060100- /O.CON.KCYS.HW.W.0001.000000T0000Z-150106T0100Z/ NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL CARBON COUNTY- UPPER NORTH PLATTE RIVER BASIN-LARAMIE VALLEY- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS... SINCLAIR...HANNA...SARATOGA...ENCAMPMENT...RIVERSIDE...LARAMIE 1110 AM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * TIMING...VERY STRONG WINDS WILL CONTINUE THROUGH SUNSET. * WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 65 MPH. A FEW HIGHER GUSTS ARE POSSIBLE. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. * IMPACTS...MAINLY TO TRANSPORTATION. TRAVEL ON INTERSTATE 80 FROM LARAMIE TO RAWLINS COULD BE SEVERELY IMPACTED. SEVERE CROSS WINDS THAT COULD LEAD TO BLOWOFFS AND BLOW OVERS OF HIGH PROFILE AND LIGHT WEIGHT VEHICLES ARE POSSIBLE. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. INTERSTATE 80 HAS BEEN CLOSED ACROSS MUCH OF SOUTHEAST WYOMING EAST OF RAWLINS DUE TO DANGEROUS WINTER DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ WYZ101-102-107-108-118-119-060100- /O.CON.KCYS.HW.W.0001.000000T0000Z-150106T0100Z/ CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL LARAMIE COUNTY- EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...GLENDO... WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON...CHEYENNE... BURNS...CARPENTER...ALBIN...PINE BLUFFS 1110 AM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * TIMING...VERY STRONG WINDS WILL CONTINUE THROUGH SUNSET. * WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 65 MPH. A FEW HIGHER GUSTS ARE POSSIBLE. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. * IMPACTS...MAINLY TO TRANSPORTATION. TRAVEL ON INTERSTATE 80 FROM PINE BLUFFS TO CHEYENNE AND INTERSTATE 25 FROM THE COLORADO BORDER TO DOUGLAS COULD BE SEVERELY IMPACTED. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. THE WYOMING DEPARTMENT OF TRANSPORTATION HAS CLOSED INTERSTATE 25 TO LIGHT WEIGHT AND HIGH PROFILE VEHICLES BETWEEN DOUGLAS AND THE COLORADO STATE LINE DUE TO AN EXTREME BLOWOVER RISK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ NEZ002-003-019>021-054-055-095-096-060100- /O.CON.KCYS.WI.Y.0001.000000T0000Z-150106T0100Z/ 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 1110 AM MST MON JAN 5 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * TIMING...WINDS WILL INCREASE THIS AFTERNOON AND CONTINUE THROUGH SUNSET. * WINDS...WEST TO SOUTHWEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. * IMPACTS...MAINLY TO TRANSPORTATION. PEOPLE TRAVELING SHOULD BE PARTICULARLY CAUTIOUS...ESPECIALLY ON NORTH TO SOUTH ORIENTED ROADS DUE TO STRONG CROSSWINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ HAMMER
134 WWUS75 KCYS 052047 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 147 PM MST MON JAN 5 2015 ...WIDESPREAD AND DANGEROUS HIGH WIND EVENT TO CONTINUE THROUGH TONIGHT... .STRONG WINDS CONTINUE THIS AFTERNOON ACROSS MUCH OF SOUTHEAST WYOMING WITH WIND GUSTS IN EXCESS OF 60 MPH AT MANY LOCATIONS. AN IMPRESSIVE PRESSURE GRADIENT COMBINED WITH VERY STRONG FLOW JUST ABOVE THE SURFACE WILL CONTINUE TO CREATE THE POTENTIAL FOR WIND GUSTS AS HIGH AS 80 MPH...PARTICULARLY IN THE WIND PRONE LOCATIONS OF ARLINGTON...BORDEAUX...AND INTERSTATE 80 BETWEEN CHEYENNE AND LARAMIE. WINDS WILL DIMINISH OVER THE PLAINS AFTER SUNSET...BUT WILL REMAIN STRONG IN THE WIND PRONE AREAS THROUGH EARLY TUESDAY MORNING. THIS IS A VERY DANGEROUS SITUATION... ESPECIALLY FOR MOTORISTS TRAVELING ALONG INTERSTATES 80 AND 25 IN SOUTHEAST WYOMING. IN ADDITION TO THE WIND...AREAS OF BLOWING SNOW ARE CREATING SLICK SPOTS AND POCKETS OF VERY LOW VISIBILITY. IF ROADS ARE NOT CLOSED...TRAVEL IS HIGHLY DISCOURAGED. WYZ102-108-119-052200- /O.CAN.KCYS.HW.W.0001.000000T0000Z-150106T0100Z/ NIOBRARA COUNTY-GOSHEN COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...LUSK...TORRINGTON...BURNS...CARPENTER... ALBIN...PINE BLUFFS 147 PM MST MON JAN 5 2015 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE HIGH WIND WARNING. BREEZY CONDITIONS WILL CONTINUE THROUGH THIS EVENING. HOWEVER... ENVIRONMENTAL CONDITIONS NO LONGER FAVOR WIND GUSTS IN EXCESS OF 60 MPH. A HIGH WIND WARNING REMAINS IN EFFECT FOR AREAS ALONG AND WEST OF INTERSTATE 25. $$ NEZ002-003-019>021-054-055-095-096-052200- /O.CAN.KCYS.WI.Y.0001.000000T0000Z-150106T0100Z/ 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 147 PM MST MON JAN 5 2015 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WIND ADVISORY. STRONG WINDS HAVE FAILED TO MATERIALIZE ACROSS MUCH OF THE WESTERN NEBRASKA PANHANDLE TODAY. LOOK FOR WEST WINDS BETWEEN 15 AND 25 MPH WITH GUSTS TO 35 MPH NEAR THE WYOMING STATE LINE THROUGH THE REST OF THE AFTERNOON. A BRIEF PERIOD OF NORTHERLY WINDS GUSTING AS HIGH AS 50 MPH REMAINS A POSSIBILITY THIS EVENING AS A COLD FRONT MOVES SOUTH...ESPECIALLY OVER THE NORTHERN PANHANDLE AND HIGHER ELEVATIONS ALONG THE PINE RIDGE. $$ WYZ106-116-117-061200- /O.CON.KCYS.HW.W.0001.000000T0000Z-150106T1200Z/ CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...BORDEAUX...VEDAUWOO...BUFORD... PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER 147 PM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... * TIMING...VERY STRONG WINDS WILL CONTINUE THROUGH LATE TONIGHT. * WINDS...WEST 40 TO 50 MPH WITH GUSTS TO 75 MPH. A FEW GUSTS IN EXCESS OF 80 MPH ARE STILL POSSIBLE...ESPECIALLY NEAR BORDEAUX. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. THIS IS A VERY DANGEROUS SITUATION. * IMPACTS...TRAVEL ALONG INTERSTATE 80 OVER THE SOUTHERN LARAMIE RANGE BETWEEN CHEYENNE AND LARAMIE AS WELL AS INTERSTATE 25 SOUTH OF WHEATLAND NEAR BORDEAUX WILL BE SEVERELY IMPACTED. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. INTERSTATE 80 HAS BEEN CLOSED DUE TO WINTER CONDITIONS BETWEEN CHEYENNE AND RAWLINS. THE WYOMING DEPARTMENT OF TRANSPORTATION HAS CLOSED INTERSTATE 25 TO LIGHT WEIGHT AND HIGH PROFILE VEHICLES BETWEEN DOUGLAS AND THE COLORADO STATE LINE DUE TO AN EXTREME BLOWOVER RISK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ WYZ103>105-109-113-115-060100- /O.CON.KCYS.HW.W.0001.000000T0000Z-150106T0100Z/ NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL CARBON COUNTY- UPPER NORTH PLATTE RIVER BASIN-LARAMIE VALLEY- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS... SINCLAIR...HANNA...SARATOGA...ENCAMPMENT...RIVERSIDE...LARAMIE 147 PM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * TIMING...VERY STRONG WINDS WILL CONTINUE THROUGH SUNSET. * WINDS...WEST TO SOUTHWEST 35 TO 50 MPH WITH GUSTS TO 70 MPH. A FEW HIGHER GUSTS ARE POSSIBLE. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. * IMPACTS...MAINLY TO TRANSPORTATION. TRAVEL ON INTERSTATE 80 FROM LARAMIE TO RAWLINS WILL BE SEVERELY IMPACTED. SEVERE CROSS WINDS THAT COULD LEAD TO BLOWOFFS AND BLOW OVERS OF HIGH PROFILE AND LIGHT WEIGHT VEHICLES ARE LIKELY. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. INTERSTATE 80 HAS BEEN CLOSED ACROSS MUCH OF SOUTHEAST WYOMING EAST OF RAWLINS DUE TO DANGEROUS WINTER DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ WYZ101-107-118-060100- /O.CON.KCYS.HW.W.0001.000000T0000Z-150106T0100Z/ CONVERSE COUNTY LOWER ELEVATIONS-EAST PLATTE COUNTY- CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...GLENDO... WHEATLAND...CHUGWATER...GUERNSEY...CHEYENNE 147 PM MST MON JAN 5 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * TIMING...VERY STRONG WINDS WILL CONTINUE THROUGH SUNSET. * WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 65 MPH. A FEW HIGHER GUSTS ARE POSSIBLE. THIS COULD COMBINE WITH RECENT SNOWPACK TO RESULT IN AREAS OF BLOWING AND DRIFTING SNOW WITH VERY LOW VISIBILITIES. * IMPACTS...MAINLY TO TRANSPORTATION. TRAVEL ON INTERSTATE 80 FROM PINE BLUFFS TO CHEYENNE AND INTERSTATE 25 FROM THE COLORADO BORDER TO DOUGLAS WILL BE SEVERELY IMPACTED. AREAS OF BLOWING AND DRIFTING SNOW COULD MAKE TRAVEL EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE IN SOME AREAS. THE WYOMING DEPARTMENT OF TRANSPORTATION HAS CLOSED INTERSTATE 25 TO LIGHT WEIGHT AND HIGH PROFILE VEHICLES BETWEEN DOUGLAS AND THE COLORADO STATE LINE DUE TO AN EXTREME BLOWOVER RISK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. && $$ HAMMER
What forecasters said that day
The local office's own words before this wind 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 advisory went out at Jan 4, 10:57 PM MST, 2 hours 37 minutes earlier.
Area forecast discussion, Jan 4, 10:57 PM MST, 2 hours 37 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
1057 PM MST SUN JAN 4 2015
.UPDATE...
ISSUED AT 825 PM MST SUN JAN 4 2015
FORECAST LOOKS ON TRACK FOR TONIGHT. THE STRONGEST WINDS THROUGH
THE EVENING HAVE BEEN IN THE ARLINGTON AREA WHERE SUSTAINED WINDS
OF 40-45 MPH WITH GUSTS TO 60 MPH HAVE OCCURRED. WYDOT HAS CLOSED
INTERSTATE 80 BETWEEN WALCOTT JUNCTION AND LARAMIE. VEDAUWOO HAS
SEEN OCCASIONAL GUSTS TO 50 MPH. NOT EXPECTING THE WINDS TO
INCREASE MUCH THROUGH TONIGHT FOR AREAS TO THE EAST OF THE
LARAMIE RANGE WITH HIGHER PRESSURES ACROSS THE PLAINS. MAIN CHANGE
TO THE GRIDS WAS TO REMOVE BLOWING SNOW OUTSIDE OF ARLINGTON AND
THE SOUTHERN LARAMIE RANGE THROUGH 09Z.
&&
.SHORT TERM...(THIS EVENING THROUGH TUESDAY NIGHT)
ISSUED AT 211 PM MST SUN JAN 4 2015
A WIDESPREAD AND POTENTIALLY DANGEROUS HIGH WIND EVENT IS STILL ON
TRACK FROM LATE TONIGHT THROUGH EARLY TUESDAY MORNING. HIGHWAY OBS
HAVE INDICATED WIND GUSTS IN EXCESS OF 60 MPH FOR MUCH OF THE DAY
IN THE ARLINGTON AREA. ATTENDANT WEBCAMS SHOW CONSIDERABLE BLOWING
SNOW...BUT VISIBILITIES HAVE NOT FALLEN MUCH BELOW AROUND A MILE
IN THE LAST FEW HOURS. OTHER WIND PRONE LOCATIONS SUCH AS BRX AND
THE I80 SUMMIT HAVE BEEN SLOW TO RESPOND TO A CAG-CPR GRADIENT IN
EXCESS OF 60 METERS AT H7 THIS AFTERNOON...BUT HAVE RECENTLY SEEN
A FEW GUSTS TO 50 MPH AT BUFORD. WILL NOT MAKE ANY CHANGES TO THE
START TIME OF REMAINING HIGHLIGHTS AS LLVL GRADIENTS WILL ONLY GET
STRONGER IN THE NEXT FEW HOURS. ASIDE FROM HIGH WINDS IN THE WIND
PRONE AREAS...SHOULD BE A RELATIVELY QUIET NIGHT FOR MOST. A FEW
SNOW SHOWERS ARE POSSIBLE OUT WEST WITH SOME MODEST MIDLVL ENERGY
EMBEDDED WITHIN THE FLOW...BUT SHOULD NOT AMOUNT TO MUCH. AREAS OF
BLOWING SNOW COULD CREATE SOME LOCALIZED TRAVEL ISSUES WEST OF THE
LARAMIE RANGE. EXPECT MOUNTAIN SNOWS WILL CONTINUE IN THE SNOWIES
AND SIERRA MADRES DURING THIS TIME AS WELL.
LATEST WATER VAPOR LOOP AND OBJECTIVE UPPER AIR ANALYSIS INDICATES
ACTIVE AND FAST NORTHWEST FLOW ALOFT IN PLACE OVER THE CWA. STRONG
UPPER JET CURRENTLY OVER WESTERN BRITISH COLUMBIA WILL SHIFT INTO
THE WESTERN DAKOTAS BY TOMORROW MORNING...SETTING THE STAGE FOR A
MAJOR HIGH WIND EPISODE. SUBSIDENCE LATE TONIGHT AND MONDAY WILL
BE VERY STRONG IN THE RIGHT FRONT QUAD OF A 170 KT H25 JET STREAK
ON THE EAST SIDE OF A BUILDING UPPER RIDGE OVER THE WESTERN CONUS.
THIS WILL SEND A 1009 MB SURFACE LOW EASTWARD ACROSS NORTHEAST WY
AFTER 12Z MON...GIVING WAY TO IMPRESSIVE LLVL GRADIENTS OVER MUCH
OF SOUTHEAST WY. IN FACT...THE NAM H85 CAG-CPR GRADIENT IS PROGGED
TO BE AROUND 110 METERS AROUND 15-18Z WHICH IS SOMETHING WE HAVE
NOT SEEN IN QUITE SOME TIME. LOCAL RESEARCH ALSO SUGGESTS THIS IS
USUALLY ASSOCIATED WITH WIND GUSTS IN EXCESS OF 70 MPH IN THE GAP
AREAS...AND ENHANCES THE THREAT OF HIGH WINDS SPREADING INTO THE
LOWER ELEVATIONS. WOULD NOT BE SURPRISED TO SEE SOME GUSTS AROUND
85 MPH OR SO TOMORROW.
BOTH THE GFS AND NAM ARE IN EXCELLENT AGREEMENT WITH A BROAD SWATH
OF 70 TO 90 KT WINDS BETWEEN H7-H8 OVER SOUTHEAST WY DURING THE
LATE MORNING AND EARLY AFTERNOON. EVEN WITH A LACK OF MIXING WITH
WIDESPREAD MID AND HIGH CLOUD...GAP ENHANCEMENTS AS WELL AS HIGHER
TERRAIN AREAS MAKE THIS A SLAM DUNK FOR THE WIND PRONE. NO CHANGES
MADE TO INHERITED HIGH WIND WARNINGS THERE. BUFKIT SOUNDINGS SHOW
STRONGER FLOW ALOFT WORKING INTO LOWER ELEVATIONS TO THE WEST OF
THE LARAMIE RANGE AFTER 09Z MON...AND BETTER LLVL MIXING IN THE
AFTERNOON THAN AREAS FARTHER EAST. HAVE ISSUED A HIGH WIND WARNING
FOR THOSE AREAS. LLVL WARM ADVECTION RAISES MORE QUESTIONS EAST OF
THE LARAMIE RANGE...BUT AM CONFIDENT THAT THE I25 CORRIDOR BETWEEN
CYS AND DGW WILL HIT. DESPITE THE INVERSION...65+ KT FLOW ONLY
1-2K FEET AGL IS CONCERNING. OMEGA FIELDS FROM MOST SHORT RANGE
MODELS SHOW AN AREA OF SUBSIDENCE SPREADING INTO CENTRAL LARAMIE
AND PLATTE COUNTIES BY 18Z...AND MAV/MET MOS GUIDANCE BOTH SHOW
SUSTAINED WINDS AROUND 35 TO 40 KTS. UPGRADED THOSE ZONES TO A
WARNING AS WELL...BUT LEFT AREAS TO THE EAST AS A WATCH AS THE
MAGNITUDE OF THE SFC PRESSURE GRADIENT DROPS OFF QUICKLY INTO THE
WESTERN PANHANDLE. WILL LET THE MIDNIGHT SHIFT DECIDE WHAT TO DO
WITH THE PANHANDLE ZONES...BUT AN ADVISORY SEEMS LIKELY. JUST NOT
SEEING WIDESPREAD HIGH WINDS THERE WITH WIDESPREAD CLOUDS AND A
LACK OF A GRADIENT DESPITE STRONG WINDS AT H8.
DANGEROUS CROSSWINDS WILL SEVERELY IMPACT TRAVEL ACROSS ALL OF
SOUTHEAST WYOMING TOMORROW. BLOWING SNOW IS ALSO A MAJOR CONCERN
NEAR ARLINGTON...WHERE WHITEOUT CONDITIONS ARE A NEAR CERTAINTY IF
GUSTS EXCEED 70 MPH AS FORECAST. THESE CONDITIONS MAY NECESSITATE
A BLIZZARD WARNING AT SOME POINT...BUT WOULD LIKE TO ACTUALLY SEE
VERY LOW VISIBILITIES ON WEBCAMS FIRST. THE WINTER STORM WARNING
IS A GOOD CHOICE FOR NOW. IN OTHER NEWS...STILL EXPECT MODERATE TO
HEAVY SNOW IN THE SNOWIES AND SIERRA MADRES WITH MOIST OROGRAPHIC
ASCENT. SHOULD SEE OVER A FOOT OF NEW SNOW THROUGH TUE AM. ADDED A
CHANCE OF SNOW TO OUR NORTHERN ZONES ON MON AND MON NIGHT BENEATH
CYCLONIC MID LEVEL FLOW...BUT DO NOT EXPECT MUCH. MONDAY WILL BE
FAIRLY MILD EAST OF THE LARAMIE RANGE WITH THE CHINOOK...WITH MID
40S POSSIBLE OVER FAR SOUTHEAST WY AND THE SOUTHERN PANHANDLE. IT
IS POSSIBLE SOME PARTS OF THE PANHANDLE COULD GET VERY CLOSE TO
WARNING CRITERIA WINDS ON MON EVENING WITH TIGHTENING GRADIENTS
ASSOCIATED WITH THE COLD FROPA. COOLER FOR TUE WITH H7 TEMPS
AVERAGING AROUND -7 DEG C...WITH ISOLATED TO WIDELY SCATTERED SNOW
SHOWERS EAST OF THE LARAMIE RANGE ON THE BACK SIDE OF A INTENSE
CANADIAN SFC HIGH SLIDING SOUTH OVER THE NORTHERN PLAINS.
.LONG TERM...(WEDNESDAY THROUGH SUNDAY)
ISSUED AT 211 PM MST SUN JAN 4 2015
THE 12Z MEDIUM RANGE MODELS AND THEIR ENSEMBLES ARE IN GENERAL
AGREEMENT WITH THE LARGE SCALE PATTERN. A HIGHLY AMPLIFIED TROUGH
ENCOMPASSING THE CENTRAL AND EASTERN CONUS EARLY IN THE PERIOD
WILL YIELD TO A DEAMPLIFYING RIDGE OVER ROCKIES LATE IN THE WEEK.
A 1056 MB HIGH ORIGINATING OVER THE CANADIAN PRAIRIES WILL SETTLE
SOUTHEAST ACROSS THE PLAINS AND MIDWEST MIDWEEK THEN WEAKEN AS IT
APPROACHES THE SOUTHEAST CONUS. MEANWHILE...A WEAKER SURGE OF
ARCTIC AIR WILL SPREAD SOUTHEAST THROUGH THE NORTH CENTRAL CONUS
BY THE END OF THE WEEK. PRECIPITATION IS NOT FORECAST UNTIL FRIDAY
WHEN LIGHT SNOW DEVELOPS OVER THE SNOWY/SIERRA MADRES. LIGHT SNOW
WILL SPREAD SOUTHEAST ACROSS THE EASTERN WY PLAINS AND WESTERN NE
PANHANDLE FRIDAY NIGHT WITH THE PASSAGE OF A SHORTWAVE TROUGH.
ADDITIONAL SNOWFALL IS FORECAST FOR THE SOUTHEAST WY MOUNTAINS
SATURDAY BEFORE DRIER CONDITIONS RESUME SUNDAY. THERE WILL BE
BREEZY AT TIMES...MAINLY DURING DAYLIGHT HOURS...HOWEVER HIGH
WINDS ARE NOT EXPECTED AS THE BELT OF STRONG WESTERLIES RETREATS
NORTHEAST OF THE REGION. AFTER A CHILLY WEDNESDAY...TEMPERATURES
MODERATE ABOVE NORMAL THURSDAY...THEN RETURN TO SEASONAL LEVELS
FRIDAY THROUGH SUNDAY.
&&
.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z MONDAY NIGHT)
ISSUED AT 1050 PM MST SUN JAN 4 2015
MAINLY VFR CONDITIONS THROUGH THE TAF PERIOD. MAIN AVIATION
CONCERN WILL BE THE INCREASING WINDS BY MON MORNING...ESPECIALLY
ACROSS SOUTHEAST WY. WIND GUSTS SHOULD GENERALLY REMAIN BELOW 30
KTS THROUGH 09Z MON. THE WINDS WILL REALLY PICK UP BY LATE MON
MORNING WITH GUSTS TO 40-50 KTS EXPECTED AT THE WY SITES THROUGH
THE AFTERNOON. BRIEF MVFR VIS IN BLSN COULD OCCUR AT RWL AND LAR
DURING THE MORNING ASSOCIATED WITH THE HIGHER WINDS. IT WILL STILL
BE BREEZY OVER THE NEBRASKA PANHANDLE...HOWEVER GUSTS WILL BE IN
THE 25-35 KT RANGE. A BKN-TO-OVC LAYER OF CLOUDS WITH BASES 5-10
THOUSAND FEET SHOULD BE PRESENT FOR MUCH OF THE TAF PERIOD.
&&
.FIRE WEATHER...
ISSUED AT 211 PM MST SUN JAN 4 2015
NO FIRE WEATHER ISSUES THROUGH EARLY NEXT WEEK DUE TO SNOWPACK...
COOL TEMPERATURES AND NON-CRITICAL HUMIDITIES. SNOW WILL CONTINUE
OVER THE SOUTHERN WYOMING MOUNTAINS INTO EARLY NEXT WEEK. VERY
STRONG WINDS WILL DEVELOP TONIGHT AND PERSIST THROUGH MONDAY
NIGHT FOR THE WIND PRONE AREAS OF SOUTHEAST WYOMING.
&&
.CYS WATCHES/WARNINGS/ADVISORIES...
WY...HIGH WIND WARNING FROM 2 AM TO 6 PM MST MONDAY FOR WYZ103>105-
109-113-115.
HIGH WIND WARNING FROM 10 AM TO 6 PM MST MONDAY FOR WYZ101-107-
118.
HIGH WIND WARNING UNTIL 5 AM MST TUESDAY FOR WYZ106-116-117.
HIGH WIND WATCH FROM 10 AM MST MONDAY THROUGH MONDAY AFTERNOON
FOR WYZ102-108-119.
WINTER STORM WARNING UNTIL 5 AM MST TUESDAY FOR WYZ110-112-114.
NE...NONE.
&&
UPDATE...ZF
SHORT TERM...HAMMER
LONG TERM...JAMSKI
AVIATION...ZF
FIRE WEATHER...HAMMER/GCCHazardous weather outlook, Jan 4, 3:11 PM MST, 10 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 311 PM MST SUN JAN 4 2015 WYZ101>119-052215- CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- 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-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- 311 PM MST SUN JAN 4 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT A WIDESPREAD AND POTENTIALLY DANGEROUS HIGH WIND EVENT IS EXPECTED FROM LATE TONIGHT THROUGH EARLY TUESDAY MORNING. TRAVEL MAY BE SEVERELY IMPACTED ALONG INTERSTATE 80 AND 25 DURING THIS TIME WITH CONSIDERABLE BLOWING SNOW POSSIBLE. HIGH WIND WARNINGS HAVE BEEN ISSUED FOR MUCH OF THE AREA. VERY STRONG WINDS WILL COMBINE WITH RECENT SNOWPACK AND FALLING SNOW TO PRODUCE NEAR BLIZZARD CONDITIONS ALONG INTERSTATE 80 BETWEEN LARAMIE AND RAWLINS TONIGHT AND MONDAY. HEAVY MOUNTAIN SNOWS ARE EXPECTED AS WELL. TRAVEL WILL BECOME EXTREMELY DANGEROUS OR EVEN IMPOSSIBLE OVER THE NEXT 24 TO 36 HOURS. WINTER STORM WARNINGS REMAIN IN EFFECT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY HIGH WINDS WILL CONTINUE THROUGH TUESDAY MORNING...ALONG WITH DANGEROUS WINTER CONDITIONS ALONG INTERSTATE 80 NEAR ARLINGTON. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. NEZ002-003-019>021-054-055-095-096-052215- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- 311 PM MST SUN JAN 4 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN NEBRASKA. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY STRONG WEST-TO-NORTHWEST WINDS ARE POSSIBLE ACROSS MUCH OF THE WESTERN NEBRASKA PANHANDLE ON MONDAY AFTERNOON. SUSTAINED WINDS AROUND 25 TO 35 MPH WITH GUSTS TO 55 MPH ARE EXPECTED. THE WINDS SHOULD DIMINISH OVERNIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. HAMMER
In the hours before
Local storm report, Jan 4, 7:53 PM MST, 5 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
753 PM MST SUN JAN 04 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0741 PM NON-TSTM WND GST ARLINGTON 41.59N 106.21W
01/04/2015 M52 MPH CARBON WY DEPT OF HIGHWAYS
SUSTAINED AT 41 MPH.
0740 PM NON-TSTM WND GST 7 NW ELK MOUNTAIN 41.76N 106.51W
01/04/2015 M57 MPH CARBON WY DEPT OF HIGHWAYS
SUSTAINED AT 49 MPH.
0741 PM NON-TSTM WND GST 15 NNE CENTENNIAL 41.50N 106.00W
01/04/2015 M57 MPH ALBANY WY DEPT OF HIGHWAYS
SUSTAINED AT 41 MPH.
&&
BCHAPMANLocal storm report, Jan 4, 8:26 PM MST, 5 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
826 PM MST SUN JAN 04 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0811 PM NON-TSTM WND GST 15 NNE CENTENNIAL 41.50N 106.00W
01/04/2015 M60 MPH ALBANY WY DEPT OF HIGHWAYS
SUSTAINED AT 42
0810 PM NON-TSTM WND GST 7 NW ELK MOUNTAIN 41.76N 106.51W
01/04/2015 M56 MPH CARBON WY DEPT OF HIGHWAYS
SUSTAINED AT 46 MPH.
0810 PM NON-TSTM WND GST ARLINGTON 41.59N 106.21W
01/04/2015 M57 MPH CARBON WY DEPT OF HIGHWAYS
SUSTAINED AT 42 MPH
&&
BCHAPMANLocal storm report, Jan 5, 1:04 AM MST, 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
104 AM MST MON JAN 05 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1051 PM NON-TSTM WND GST 2 ESE ARLINGTON 41.58N 106.17W
01/04/2015 M60.00 MPH CARBON WY DEPT OF HIGHWAYS
WYDOT SENSOR AT ARLINGTON EAST
1105 PM NON-TSTM WND GST 7 NW ELK MOUNTAIN 41.76N 106.51W
01/04/2015 M60.00 MPH CARBON WY DEPT OF HIGHWAYS
WYDOT SENSOR AT HALLECK RIDGE
1131 PM NON-TSTM WND GST ARLINGTON 41.59N 106.21W
01/04/2015 M63.00 MPH CARBON WY DEPT OF HIGHWAYS
1225 AM NON-TSTM WND GST 7 ESE ARLINGTON 41.55N 106.08W
01/05/2015 M58.00 MPH CARBON WY DEPT OF HIGHWAYS
WYDOT SENSOR AT COOPER COVE
&&
MAZURNearby
Wind Advisories in Nebraska, 2015Every wind advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.