Alert archive / Wyoming / High Wind Warnings in 2011
High Wind Warning 21, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Nov 4, 2011, 2:37 AM MDT for Fremont County, Natrona County, Sweetwater County, Wyoming. It took effect at Nov 4, 2011, 6:00 AM MDT. It was in force for 11 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
- Nov 4, 2011, 2:37 AM MDT (08:37 UTC)
- In effect from
- Nov 4, 2011, 6:00 AM MDT
- Expired
- Nov 4, 2011, 4:47 PM MDT
- In force
- 11 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 08:39 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
Riverton, WY (KRIW), launched 00:00Z, 8.6 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
- 2748 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
334 WWUS75 KRIW 040837 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 237 AM MDT FRI NOV 4 2011 ...HIGH WINDS EXPECTED TO RETURN TODAY... .STRONG WINDS ALOFT WILL MIX TO THE SURFACE TO BRING HIGH WIND SHORTLY AFTER SUNRISE ACROSS THE GREEN MOUNTAINS AND RATTLESNAKE RANGE. IN ADDITION...STRONG WIND REMAINS POSSIBLE OVER THE LOWER ELEVATIONS OF NATRONA COUNTY AND EASTERN SWEETWATER COUNTY WITH THE POTENTIAL OF AN INCREASED TEMPERATURE AND PRESSURE GRADIENT TODAY. THESE STRONG WINDS WILL BE POSSIBLE LATER THIS MORNING. THE AREAS OF STRONG WIND ARE EXPECTED TO DIMINISH SHORTLY AFTER SUNSET THIS EVENING. WYZ019-041530- /O.UPG.KRIW.HW.A.0015.111104T1200Z-111105T0000Z/ /O.NEW.KRIW.HW.W.0021.111104T1200Z-111105T0000Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 237 AM MDT FRI NOV 4 2011 ...HIGH WIND WARNING IN EFFECT FROM 6 AM THIS MORNING TO 6 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 6 AM THIS MORNING TO 6 PM MDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...HIGH WINDS WILL RETURN THIS MORNING AND CONTINUE THROUGH THE AFTERNOON HOURS. * WIND...35 TO 45 MPH WINDS WITH GUST TO NEAR 60 MPH ARE EXPECTED. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL DIFFICULT FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES. 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. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-041530- /O.EXT.KRIW.HW.A.0015.111104T1500Z-111105T0000Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 237 AM MDT FRI NOV 4 2011 ...HIGH WIND WATCH NOW IN EFFECT FROM 9 AM MDT THIS MORNING THROUGH THIS AFTERNOON... THE HIGH WIND WATCH IS NOW IN EFFECT FROM 9 AM MDT THIS MORNING THROUGH THIS AFTERNOON. * SUMMARY AND TIMING...WHILE BREEZY CONDITIONS ARE EXPECTED ACROSS THE AREA TODAY...HIGH WINDS REMAIN POSSIBLE LATER THIS MORNING. HIGH WIND IS POSSIBLE THIS MORNING THROUGH THE AFTERNOON. * WIND...35 TO 45 MPH WINDS WITH GUSTS TO NEAR 60 MPH ARE POSSIBLE TODAY. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL DIFFICULT FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ030-041530- /O.EXT.KRIW.HW.A.0015.111104T1500Z-111105T0000Z/ EAST SWEETWATER COUNTY- INCLUDING THE CITY OF...WAMSUTTER 237 AM MDT FRI NOV 4 2011 ...HIGH WIND WATCH NOW IN EFFECT FROM 9 AM MDT THIS MORNING THROUGH THIS AFTERNOON... THE HIGH WIND WATCH IS NOW IN EFFECT FROM 9 AM MDT THIS MORNING THROUGH THIS AFTERNOON. * SUMMARY AND TIMING...BREEZY WINDS ARE EXPECTED TODAY...WITH HIGH WIND POSSIBLE LATER THIS MORNING. THE STRONGER WINDS MAY DEVELOP THIS MORNING ACROSS EASTERN SWEETWATER COUNTY BETWEEN POINT OF ROCKS AND WAMSUTTER ALONG INTERSTATE 80. * WIND...35 TO 45 MPH WINDS WITH GUSTS TO 60 MPH ARE POSSIBLE TODAY. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL DIFFICULT FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES. 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. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ BRANHAM
2 follow-up statements
513 WWUS75 KRIW 041413 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 813 AM MDT FRI NOV 4 2011 ...HIGH WINDS ARE EXPECTED TODAY ACROSS EASTERN SWEETWATER... SOUTHERN FREMONT AND NATRONA COUNTIES... .STRONG WINDS ALOFT WILL MIX TO THE SURFACE TO BRING HIGH WINDS ACROSS EASTERN SWEETWATER...SOUTHERN FREMONT AND NATRONA COUNTIES. WINDS WILL INCREASE THROUGH THE MORNING PEAKING DURING THE AFTERNOON HOURS. THE AREAS OF HIGH WINDS ARE EXPECTED TO DIMINISH AFTER SUNSET THIS EVENING. WYZ030-050200- /O.UPG.KRIW.HW.A.0015.111104T1500Z-111105T0000Z/ /O.EXB.KRIW.HW.W.0021.000000T0000Z-111105T0200Z/ EAST SWEETWATER COUNTY- INCLUDING THE CITY OF...WAMSUTTER 813 AM MDT FRI NOV 4 2011 ...HIGH WIND WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT UNTIL 8 PM MDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...WINDS WILL INCREASE THROUGH THE MORNING WITH THE HIGHEST WINDS PEAKING DURING THE AFTERNOON...DIMINISHING AFTER SUNSET THIS EVENING. THE STRONGEST WINDS ARE EXPECTED BETWEEN POINT OF ROCKS AND WAMSUTTER ALONG INTERSTATE 80. * WIND...35 TO 45 MPH WINDS WITH GUSTS TO 65 MPH ARE POSSIBLE TODAY. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL DIFFICULT FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-050200- /O.UPG.KRIW.HW.A.0015.111104T1500Z-111105T0000Z/ /O.EXB.KRIW.HW.W.0021.000000T0000Z-111105T0200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 813 AM MDT FRI NOV 4 2011 ...HIGH WIND WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT UNTIL 8 PM MDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...WINDS WILL INCREASE THROUGH THE MORNING WITH THE HIGHEST WINDS PEAKING DURING THE AFTERNOON...DIMINISHING AFTER SUNSET THIS EVENING. THE STRONGEST WINDS ARE EXPECTED ALONG HIGHWAY 220 FROM DEVILS GATE TO THE SOUTHWEST SIDE OF CASPER AND THEN ALONG OUTER DRIVE ON THE SOUTH SIDE OF CASPER. ANOTHER AREA OF HIGH WINDS ARE EXPECTED ALONG HIGHWAY 20 26 FROM HIGHLAND TO AROUND THE CASPER AIRPORT. * WIND...35 TO 45 MPH WINDS WITH GUSTS TO NEAR 65 MPH ARE POSSIBLE TODAY. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL DIFFICULT FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES. 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. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-050200- /O.EXT.KRIW.HW.W.0021.000000T0000Z-111105T0200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 813 AM MDT FRI NOV 4 2011 ...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 PM MDT THIS EVENING... THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 8 PM MDT THIS EVENING. * SUMMARY AND TIMING...HIGH WINDS WILL RETURN THIS MORNING PEAKING IN THE AFTERNOON BEFORE DIMINISHING AROUND SUNSET ALONG HIGHWAY 287 FROM BEAVER RIM TO MUDDY GAP. * WIND...35 TO 45 MPH WINDS WITH GUST TO NEAR 65 MPH ARE EXPECTED. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL DIFFICULT FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ C.BAKER
151 WWUS75 KRIW 042247 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 447 PM MDT FRI NOV 4 2011 WYZ019-020-030-050000- /O.CAN.KRIW.HW.W.0021.000000T0000Z-111105T0200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...JEFFREY CITY...CASPER...WAMSUTTER 447 PM MDT FRI NOV 4 2011 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH WIND WARNING. WINDS CONTINUED TO DECREASE LATE THIS AFTERNOON AS THE PRESSURE GRADIENT ACROSS CENTRAL WYOMING WEAKENED. HIGH WINDS ARE NO LONGER EXPECTED. HOWEVER...SOME LOCAL WIND GUSTS OF 40 TO 50 MPH MAY STILL BE ENCOUNTERED THROUGH SUNSET. $$ AEM
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.