Alert archive / Wyoming / High Wind Warnings in 2011
High Wind Warning 7, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Feb 16, 2011, 4:06 AM MST for Fremont County, Natrona County, Sweetwater County, Wyoming. It took effect at Feb 16, 2011, 11:00 AM MST. It was in force for 17 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 16, 2011, 4:06 AM MST (11:06 UTC)
- In effect from
- Feb 16, 2011, 11:00 AM MST
- Expired
- Feb 17, 2011, 3:59 AM MST
- In force
- 17 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Natrona County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 65 km from the middle of the area, began a volume at 11:05 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
Riverton, WY (KRIW), launched 00:00Z, 11.1 hours before the alert went out and 62 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
- 4435 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
621 WWUS75 KRIW 161106 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 406 AM MST WED FEB 16 2011 ...STRONG WINDS EXPECTED OVER PORTIONS OF CENTRAL WYOMING WEDNESDAY NIGHT... .AN APPROACHING PACIFIC TROUGH WILL RESULT IN THE POTENTIAL FOR STRONG WINDS FOR SOUTHEAST FREMONT AND NATRONA COUNTIES FOR THIS AFTERNOON THROUGH TONIGHT. WYZ019-161915- /O.UPG.KRIW.HW.A.0005.110217T0100Z-110217T1300Z/ /O.NEW.KRIW.HW.W.0007.110216T1800Z-110217T1300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 406 AM MST WED FEB 16 2011 ...HIGH WIND WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 AM MST THURSDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...STRONG SOUTHWEST WINDS ARE EXPECTED THIS AFTERNOON THROUGH TONIGHT OVER THE GREEN MOUNTAINS AND RATTLESNAKE RANGE INCLUDING JEFFREY CITY. * WIND...SOUTHWEST WINDS HAVE ALREADY GUSTED TO 53 MPH AT A REMOTE WEATHER SENSOR AT FALES ROCK EARLIER THIS MORNING. SOUTHWEST ARE EXPECTED TO INCREASE TO 35 TO 45 MPH WITH GUSTS OF 65 TO 75 MPH BY THIS AFTERNOON. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL DANGEROUS ON HIGHWAYS 789 AND 287. 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. && $$ WYZ020-161915- /O.NEW.KRIW.HW.A.0006.110216T1800Z-110217T1300Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 406 AM MST WED FEB 16 2011 ...HIGH WIND WATCH IN EFFECT FROM 11 AM MST THIS MORNING THROUGH LATE TONIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM 11 AM MST THIS MORNING THROUGH LATE TONIGHT. * SUMMARY AND TIMING...STRONG SOUTHWEST WINDS ARE POSSIBLE THIS AFTERNOON THROUGH TONIGHT IN NATRONA COUNTY INCLUDING THE CITY OF CASPER. * WIND...SOUTHWEST WINDS HAVE ALREADY GUSTED TO 45 MPH EARLIER THIS MORNING AT THE NATRONA COUNTY REGIONAL AIRPORT. SOUTHWEST WINDS MAY INCREASE TO 35 TO 45 MPH WITH GUSTS OVER 60 MPH. * IMPACTS...STRONG CROSS WINDS MAY MAKE TRAVEL DANGEROUS ON HIGHWAYS 122 AND 26. IN THE CASPER AREA...STRONG CROSS WINDS COULD MAKE FOR DANGEROUS TRAVEL ALONG OUTER DRIVE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA. && $$ LIPSON
4 follow-up statements
555 WWUS75 KRIW 161752 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1052 AM MST WED FEB 16 2011 ...STRONG WINDS EXPECTED OVER PORTIONS OF CENTRAL WYOMING THIS AFTERNOON AND TONIGHT... .AN APPROACHING PACIFIC TROUGH WILL RESULT IN THE POTENTIAL FOR STRONG WINDS FOR SOUTHEAST FREMONT AND NATRONA COUNTIES FOR THIS AFTERNOON THROUGH TONIGHT. WYZ019-170300- /O.CON.KRIW.HW.W.0007.110216T1800Z-110217T1300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 1052 AM MST WED FEB 16 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY. * SUMMARY AND TIMING...STRONG SOUTHWEST WINDS ARE EXPECTED THIS AFTERNOON THROUGH TONIGHT OVER THE GREEN MOUNTAINS AND RATTLESNAKE RANGE INCLUDING JEFFREY CITY. * WIND...SOUTHWEST ARE EXPECTED TO INCREASE TO 35 TO 45 MPH WITH GUSTS OF 65 TO 75 MPH BY THIS AFTERNOON. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL DANGEROUS ON HIGHWAYS 789 AND 287. 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. && $$ WYZ020-170300- /O.EXT.KRIW.HW.A.0006.110217T0300Z-110217T1300Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 1052 AM MST WED FEB 16 2011 ...HIGH WIND WATCH NOW IN EFFECT FROM 8 PM MST THIS EVENING THROUGH LATE TONIGHT... THE HIGH WIND WATCH IS NOW IN EFFECT FROM 8 PM MST THIS EVENING THROUGH LATE TONIGHT. * SUMMARY AND TIMING...STRONG SOUTHWEST WINDS ARE POSSIBLE TONIGHT IN NATRONA COUNTY INCLUDING THE CITY OF CASPER. * WIND...SOUTHWEST WINDS MAY INCREASE TO 35 TO 45 MPH WITH GUSTS OVER 60 MPH AFTER 8 PM MST. * IMPACTS...STRONG CROSS WINDS MAY MAKE TRAVEL DANGEROUS ON HIGHWAYS 122 AND 26. IN THE CASPER AREA...STRONG CROSS WINDS COULD MAKE FOR DANGEROUS TRAVEL ALONG OUTER DRIVE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA. && $$ C.BAKER
702 WWUS75 KRIW 162113 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 213 PM MST WED FEB 16 2011 ...STRONG WINDS EXPECTED OVER PORTIONS OF CENTRAL WYOMING THIS AFTERNOON AND TONIGHT... .AN APPROACHING PACIFIC TROUGH WILL RESULT IN THE POTENTIAL FOR STRONG WINDS FOR SOUTHERN FREMONT AND SOUTHWEST NATRONA COUNTIES FOR THIS AFTERNOON THROUGH TONIGHT. WYZ020-162215- /O.CAN.KRIW.HW.A.0006.110217T0300Z-110217T1300Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 213 PM MST WED FEB 16 2011 ...HIGH WIND WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH WIND WATCH. WIDESPREAD HIGH WINDS ARE NO LONGER EXPECTED. $$ WYZ019-170515- /O.CON.KRIW.HW.W.0007.000000T0000Z-110217T1300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 213 PM MST WED FEB 16 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY. * SUMMARY AND TIMING...STRONG SOUTHWEST WINDS ARE EXPECTED THIS AFTERNOON THROUGH TONIGHT OVER THE GREEN MOUNTAINS AND RATTLESNAKE RANGE INCLUDING JEFFREY CITY. * WIND...SOUTHWEST ARE EXPECTED TO INCREASE TO 35 TO 45 MPH WITH GUSTS OF 65 TO 75 MPH BY THIS AFTERNOON. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL DANGEROUS ON HIGHWAYS 789 AND 287. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. && $$ C.BAKER
203 WWUS75 KRIW 170417 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 917 PM MST WED FEB 16 2011 ...STRONG WINDS EXPECTED OVER PORTIONS OF CENTRAL WYOMING THIS AFTERNOON AND TONIGHT... .AN APPROACHING PACIFIC TROUGH WILL RESULT IN THE POTENTIAL FOR STRONG WINDS FOR SOUTHERN FREMONT AND SOUTHWEST NATRONA COUNTIES THROUGH TONIGHT. WYZ019-171230- /O.CON.KRIW.HW.W.0007.000000T0000Z-110217T1300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 917 PM MST WED FEB 16 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY. * SUMMARY AND TIMING...STRONG SOUTHWEST WINDS ARE EXPECTED THROUGH TONIGHT OVER THE GREEN MOUNTAINS AND RATTLESNAKE RANGE INCLUDING JEFFREY CITY. THE MOST LIKELY WINDOW FOR STRONG WINDS WILL OCCUR BETWEEN 10 PM THIS EVENING THROUGH MIDNIGHT DURING THE COLD FRONTAL PASSAGE AND AGAIN FROM 3 TO 6 AM WHEN THE SURFACE PRESSURE GRADIENT INCREASES. * WIND...SOUTHWEST ARE EXPECTED TO INCREASE TO 35 TO 45 MPH WITH GUSTS OF 65 MPH. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL DANGEROUS ON HIGHWAYS 789 AND 287. 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. && $$ LIPSON
378 WWUS75 KRIW 171059 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 359 AM MST THU FEB 17 2011 ...WEST SOUTHWEST WINDS HAVE DIMINISHED OVER THE GREEN MOUNTAINS AND RATTLESNAKE RANGE... .WEST SOUTHWEST WINDS HAVE DIMINISHED OVER THE GREEN MOUNTAINS AND RATTLESNAKE RANGE NOW THAT THE STRONG PACIFIC COLD FRONT HAS EXITED TO THE EAST. WYZ019-171200- /O.CAN.KRIW.HW.W.0007.000000T0000Z-110217T1300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 359 AM MST THU FEB 17 2011 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH WIND WARNING. WEST SOUTHWEST WINDS HAVE DIMINISHED OVER THE GREEN MOUNTAINS AND RATTLESNAKE RANGE NOW THAT THE STRONG PACIFIC COLD FRONT HAS EXITED TO THE EAST. WEST WINDS OF 20 TO 35 MPH WITH LOCAL WIND GUSTS OF 45 MPH ARE STILL EXPECTED THROUGH THE MORNING HOURS BEFORE DIMINISHING FURTHER BY NOON. $$ LIPSON
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 16, 4:06 AM MST | High Wind Watch | RIW | Natrona | 10 hr |
Nearby
High Wind Warnings in Wyoming, 2011Every high wind warning 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.