Alert archive / Nebraska / Wind Advisories in 2011
Wind Advisory 22, NWS Cheyenne, WY
NWS Cheyenne, WY issued this wind advisory at Oct 7, 2011, 10:21 AM MDT for Box Butte County, Dawes County, Sioux County, Nebraska. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Oct 7, 2011, 10:21 AM MDT (16:21 UTC)
- Expired
- Oct 7, 2011, 4:00 PM MDT
- In force
- 6 hr
- Issued by
- NWS Cheyenne, WY
Counties Box Butte County, NE, Dawes County, NE, Sioux County, NE
The radar
The Rapid City radar (KUDX), 188 km from the middle of the area, began a volume at 16:24 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
Rapid City, SD (KUNR), launched 12:00Z, 4.4 hours before the alert went out and 181 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
- 1861 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 271 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
006 WWUS75 KCYS 071621 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 1021 AM MDT FRI OCT 7 2011 ...STRONG WINDS TO IMPACT MUCH OF THE REGION... .STRONG WINDS AROUND A LOW PRESSURE SYSTEM OVER THE NORTHERN PLAINS WILL CONTINUE TO AFFECT PARTS OF SOUTHEAST WYOMING INTO THIS AFTERNOON. WYZ115-118-071730- /O.CAN.KCYS.HW.W.0044.000000T0000Z-111007T2200Z/ LARAMIE VALLEY-CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...LARAMIE...CHEYENNE 1021 AM MDT FRI OCT 7 2011 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE HIGH WIND WARNING. GUSTY WINDS ARE STILL POSSIBLE THROUGH THIS AFTERNOON BUT THE THREAT OF HIGH WINDS APPEARS TO HAVE ABATED. $$ WYZ101-103>107-109-110-116-117-072200- /O.CON.KCYS.HW.W.0044.000000T0000Z-111007T2200Z/ CONVERSE COUNTY LOWER ELEVATIONS-NORTH LARAMIE RANGE- FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...MUDDY GAP... MEDICINE BOW...BORDEAUX...GLENDO...WHEATLAND...CHUGWATER... GUERNSEY...RAWLINS...SINCLAIR...HANNA...ARLINGTON... ELK MOUNTAIN...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK... HARRIMAN...WHITAKER 1021 AM MDT FRI OCT 7 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM MDT THIS AFTERNOON... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM MDT THIS AFTERNOON. * TIMING...THROUGH MID- AFTERNOON TODAY. * WINDS...WEST TO SOUTHWEST WINDS OF 35 TO 45 MPH WITH GUSTS UP TO 65 MPH IN THE LOWER ELEVATIONS AND 70 MPH IN THE NORTHERN LARAMIE RANGE. * IMPACTS...THOSE TRAVELING IN AREAS ALONG AND WEST OF INTERSTATE 25 WILL BE AFFECTED BY THE STRONG WINDS AND SUDDEN GUSTS. THIS WILL ESPECIALLY BE THE CASE FOR THOSE WITH LIGHTWEIGHT OR HIGH PROFILE VEHICLES ON PARTS OF INTERSTATE 80 BETWEEN CHEYENNE AND RAWLINS AND INTERSTATE 25 MAINLY OVER PLATTE COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THERE IS A SIGNIFICANT BLOW OVER RISK FOR HIGH PROFILE VEHICLES TRAVELING ALONG INTERSTATE 25 BETWEEN MILEPOSTS 67 AND 80 AS WELL AS INTERSTATE 80 BETWEEN MILEPOSTS 165 AND 175 BECAUSE OF STRONG WINDS. DRIVERS OF SUCH VEHICLES SHOULD NOT TRAVEL THIS STRETCH OF ROAD. THE STRONG WIND WILL CREATE DANGEROUS CROSS WINDS THAT WILL MAKE TRAVEL EXTREMELY HAZARDOUS. && $$ NEZ002-003-095-096-072200- /O.NEW.KCYS.WI.Y.0022.111007T1621Z-111007T2200Z/ DAWES-BOX BUTTE-NORTH SIOUX-SOUTH SIOUX- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...HARRISON...AGATE 1021 AM MDT FRI OCT 7 2011 ...WIND ADVISORY IN EFFECT UNTIL 4 PM MDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM MDT THIS AFTERNOON. * TIMING...THROUGH MID-AFTERNOON TODAY. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS AROUND 45 MPH. * IMPACTS...MOSTLY TO TRAVEL...ESPECIALLY IN HIGH PROFILE VEHICLES. 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. && $$
2 follow-up statements
981 WWUS75 KCYS 072052 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 252 PM MDT FRI OCT 7 2011 ...GUSTY WINDS EASING OVER THE REGION... WINDS ARE EASING AS A STRONG LOW PRESSURE SYSTEM OVER THE NORTHERN PLAINS CONTINUES TO MOVE AWAY. WYZ101-103>107-109-110-116-117-072200- /O.CAN.KCYS.HW.W.0044.000000T0000Z-111007T2200Z/ CONVERSE COUNTY LOWER ELEVATIONS-NORTH LARAMIE RANGE- FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...MUDDY GAP... MEDICINE BOW...BORDEAUX...GLENDO...WHEATLAND...CHUGWATER... GUERNSEY...RAWLINS...SINCLAIR...HANNA...ARLINGTON... ELK MOUNTAIN...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK... HARRIMAN...WHITAKER 252 PM MDT FRI OCT 7 2011 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE HIGH WIND WARNING. WINDS HAVE FALLEN BELOW HIGH WIND LEVELS AND ARE EXPECTED TO CONTINUE DIMINISHING LATE THIS AFTERNOON AND EVENING. SOME LOCAL GUSTS AROUND 45 MPH ARE STILL POSSIBLE IN WIND PRONES AREAS LATE THIS AFTERNOON. $$ NEZ002-003-095-096-072200- /O.CON.KCYS.WI.Y.0022.000000T0000Z-111007T2200Z/ DAWES-BOX BUTTE-NORTH SIOUX-SOUTH SIOUX- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...HARRISON...AGATE 252 PM MDT FRI OCT 7 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM MDT THIS AFTERNOON... A WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM MDT THIS AFTERNOON. * TIMING...UNTIL 4 PM. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS AROUND 45 MPH. * IMPACTS...MOSTLY TO TRAVEL...ESPECIALLY IN HIGH PROFILE VEHICLES. 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. && $$ RE
830 WWUS75 KCYS 072150 NPWCYS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 350 PM MDT FRI OCT 7 2011 NEZ002-003-095-096-072300- /O.EXP.KCYS.WI.Y.0022.000000T0000Z-111007T2200Z/ DAWES-BOX BUTTE-NORTH SIOUX-SOUTH SIOUX- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...HARRISON...AGATE 350 PM MDT FRI OCT 7 2011 ...WIND ADVISORY WILL EXPIRE AT 4 PM MDT THIS AFTERNOON... THE WIND ADVISORY WILL EXPIRE AT 4 PM MDT THIS AFTERNOON. WINDS CONTINUE TO SUBSIDE ACROSS THE NORTHERN NEBRASKA PANHANDLE...THEREFORE THE WIND ADVISORY WILL BE ALLOWED TO EXPIRE. WEST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH WILL CONTINUE TO DIMINISH THROUGH SUNSET. $$ HAHN
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 7, 2:59 AM MDT | Red Flag Warning | CYS | 15 hr |
Nearby
Wind Advisories in Nebraska, 2011Every wind advisory 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.