Alert archive / Nebraska / High Wind Watches in 2011
High Wind Watch 21, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind watch at Apr 20, 2011, 2:37 PM MDT for 7 counties in Wyoming; 8 counties in Nebraska. It took effect at Apr 22, 2011, 6:00 AM MDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Apr 20, 2011, 2:37 PM MDT (20:37 UTC)
- In effect from
- Apr 22, 2011, 6:00 AM MDT
- Expired
- Apr 21, 2011, 9:40 AM MDT
- In force
- 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, Goshen 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 20:39 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, 8.6 hours before the alert went out and 251 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
- 600 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
209 WWUS75 KCYS 202037 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 237 PM MDT WED APR 20 2011 ...HIGH WIND EVENT LOOKING LIKELY FOR FRIDAY... .A PACIFIC COLD FRONT WILL SWEEP EAST ACROSS THE AREA THURSDAY NIGHT AND EARLY FRIDAY. BEHIND THE COLD FRONT...THE PRESSURE GRADIENT WILL STRENGTHEN SIGNIFICANTLY ON FRIDAY...AND WILL COMBINE WITH STRONG WINDS ALOFT TO PRODUCE A LIKELY HIGH WIND EVENT ACROSS MUCH OF SOUTHEAST WYOMING AND WESTERN NEBRASKA. NEZ002-003-019>021-054-055-095-096-WYZ101>103-105>108-110-114>119- 211100- /O.NEW.KCYS.HW.A.0021.110422T1200Z-110423T0000Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-NORTH LARAMIE RANGE-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-NORTH SNOWY RANGE FOOTHILLS- SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK...MEDICINE BOW... BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY... TORRINGTON...ARLINGTON...ELK MOUNTAIN...CENTENNIAL...ALBANY... WOODS LANDING...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...BURNS... CARPENTER...ALBIN...PINE BLUFFS 237 PM MDT WED APR 20 2011 ...HIGH WIND WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON. * TIMING...600 AM THROUGH 600 PM FRIDAY. * WINDS...WEST TO NORTHWEST 35 TO 50 MPH WITH GUSTS TO 65 MPH. * IMPACTS...MOTORISTS ESPECIALLY THOSE IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES WILL LIKELY NEED TO EXERCISE CAUTION. LIGHTWEIGHT AND LOOSE OBJECTS WILL LIKELY NEED TO BE SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ RUBIN
3 follow-up statements
020 WWUS75 KCYS 211054 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 454 AM MDT THU APR 21 2011 ...HIGH WIND EVENT POSSIBLE ON FRIDAY... .A PACIFIC COLD FRONT WILL SWEEP EAST ACROSS THE AREA LATE TONIGHT AND EARLY FRIDAY. BEHIND THE COLD FRONT...THE PRESSURE GRADIENT WILL STRENGTHEN SIGNIFICANTLY...AND WILL COMBINE WITH STRONG WINDS ALOFT TO PRODUCE STRONG AND GUSTY WESTERLY WINDS ACROSS MUCH OF SOUTHEAST WYOMING AND WESTERN NEBRASKA ON FRIDAY. NEZ002-003-019>021-054-055-095-096-WYZ101>103-105>108-110-114>119- 220000- /O.CON.KCYS.HW.A.0021.110422T1200Z-110423T0000Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-NORTH LARAMIE RANGE-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-NORTH SNOWY RANGE FOOTHILLS- SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK...MEDICINE BOW... BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY... TORRINGTON...ARLINGTON...ELK MOUNTAIN...CENTENNIAL...ALBANY... WOODS LANDING...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...BURNS... CARPENTER...ALBIN...PINE BLUFFS 454 AM MDT THU APR 21 2011 ...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... A HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON. * TIMING...6 AM THROUGH 6 PM FRIDAY. * WINDS...WEST TO NORTHWEST 35 TO 50 MPH WITH GUSTS TO 65 MPH. * IMPACTS...MOTORISTS ESPECIALLY THOSE IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES WILL LIKELY NEED TO EXERCISE CAUTION. LIGHTWEIGHT AND LOOSE OBJECTS WILL LIKELY NEED TO BE SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
078 WWUS75 KCYS 211209 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 609 AM MDT THU APR 21 2011 NEZ002-211815- /O.NEW.KCYS.HW.W.0039.110421T1209Z-110421T1800Z/ /O.CON.KCYS.HW.A.0021.110422T1200Z-110423T0000Z/ DAWES- INCLUDING THE CITY OF...CHADRON 609 AM MDT THU APR 21 2011 ...HIGH WIND WARNING IN EFFECT UNTIL NOON MDT TODAY... ...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT UNTIL NOON MDT TODAY. A HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON. * TIMING...HIGH WIND WARNING IS IN EFFECT THROUGH NOON TODAY. HIGH WIND WATCH IS IN EFFECT FOR FRIDAY FROM 6AM TO 6PM. * WINDS...SOUTH WINDS OF 35 TO 45 MPH WITH GUSTS UP TO 65 MPH WILL OCCUR TODAY. WEST TO NORTHWEST WINDS 35 TO 50 MPH WITH GUSTS TO 65 MPH ARE POSSIBLE ON FRIDAY. * IMPACTS...MOTORISTS ESPECIALLY THOSE IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES NEED TO EXERCISE CAUTION. LIGHTWEIGHT AND LOOSE OBJECTS WILL LIKELY NEED TO BE SECURED. 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. && $$ NEZ003-019>021-054-055-095-096-WYZ101>103-105>108-110-114>119- 211815- /O.CON.KCYS.HW.A.0021.110422T1200Z-110423T0000Z/ BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-NORTH LARAMIE RANGE-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-NORTH SNOWY RANGE FOOTHILLS- SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING... HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...HARRISON... AGATE...DOUGLAS...GLENROCK...LUSK...MEDICINE BOW...BORDEAUX... GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON... ARLINGTON...ELK MOUNTAIN...CENTENNIAL...ALBANY...WOODS LANDING... LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK... HARRIMAN...WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN... PINE BLUFFS 609 AM MDT THU APR 21 2011 ...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... A HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON. * TIMING...6 AM THROUGH 6 PM FRIDAY. * WINDS...WEST TO NORTHWEST 35 TO 50 MPH WITH GUSTS TO 65 MPH. * IMPACTS...MOTORISTS ESPECIALLY THOSE IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES WILL LIKELY NEED TO EXERCISE CAUTION. LIGHTWEIGHT AND LOOSE OBJECTS WILL LIKELY NEED TO BE SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
845 WWUS75 KCYS 211540 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 940 AM MDT THU APR 21 2011 ...HIGH WIND EVENT EXPECTED ON FRIDAY... .A FAST MOVING PACIFIC ORIGIN COLD FRONT WILL QUICKLY SWEEP EAST ACROSS OUR COUNTIES TONIGHT. SURFACE LOW PRESSURE WILL FORM ACROSS WESTERN SOUTH DAKOTA FRIDAY MORNING AND MOVE SLOWLY EAST BY EVENING. IN THE WAKE OF THE COLD FRONT...A STRONG PRESSURE GRADIENT AT THE SURFACE WILL COMBINE WITH STRONG WINDS IN THE LOWER ATMOSPHERE AND SUBSIDENCE BEHIND THE PASSING DISTURBANCE TO PRODUCE STRONG AND POSSIBLY DAMAGING WINDS ACROSS MUCH OF SOUTHEAST WYOMING AND WESTERN NEBRASKA. NEZ002-220500- /O.CAN.KCYS.HW.W.0039.000000T0000Z-110421T1800Z/ /O.UPG.KCYS.HW.A.0021.110422T1200Z-110423T0000Z/ /O.NEW.KCYS.HW.W.0040.110422T1200Z-110423T0000Z/ DAWES- INCLUDING THE CITY OF...CHADRON 940 AM MDT THU APR 21 2011 ...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 6 PM MDT FRIDAY... ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 6 AM TO 6 PM MDT FRIDAY. THE HIGH WIND WARNING HAS BEEN CANCELLED. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * TIMING...600 AM THROUGH 600 PM FRIDAY. * WINDS...WEST TO NORTHWEST WINDS 35 TO 50 MPH WITH GUSTS TO 65 MPH. * IMPACTS...MOTORISTS ESPECIALLY THOSE IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES WILL NEED TO EXERCISE CAUTION. LIGHTWEIGHT AND LOOSE OBJECTS WILL NEED TO BE SECURED. 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. && $$ NEZ003-019>021-054-055-095-096-WYZ101>103-105>108-110-114>119- 220500- /O.UPG.KCYS.HW.A.0021.110422T1200Z-110423T0000Z/ /O.NEW.KCYS.HW.W.0040.110422T1200Z-110423T0000Z/ BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-NORTH LARAMIE RANGE-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-NORTH SNOWY RANGE FOOTHILLS- SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING... HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...HARRISON... AGATE...DOUGLAS...GLENROCK...LUSK...MEDICINE BOW...BORDEAUX... GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON... ARLINGTON...ELK MOUNTAIN...CENTENNIAL...ALBANY...WOODS LANDING... LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK... HARRIMAN...WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN... PINE BLUFFS 940 AM MDT THU APR 21 2011 ...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 6 PM MDT FRIDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 6 AM TO 6 PM MDT FRIDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * TIMING...600 AM THROUGH 600 PM FRIDAY. * WINDS...WEST TO NORTHWEST 35 TO 50 MPH WITH GUSTS TO 65 MPH AT LOWER ELEVATIONS...WITH WIND SPEEDS OF 40 TO 55 MPH GUSTING TO 75 MPH ACROSS THE MOUNTAINS AND WIND PRONE LOCATIONS SUCH AS THE WESTERN LARAMIE COUNTY FOOTHILLS...WESTERN PLATTE COUNTY AND THE SOUTHERN LARAMIE RANGE. * IMPACTS...MOTORISTS ESPECIALLY THOSE IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES WILL NEED TO EXERCISE CAUTION. LIGHTWEIGHT AND LOOSE OBJECTS WILL NEED TO BE SECURED. 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. && $$ RUBIN
Nearby
High Wind Watches in Nebraska, 2011High Wind Watches in Wyoming, 2011Every high wind watch in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.