Alert archive / Wyoming / High Wind Warnings in 2012
High Wind Warning 22, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at May 27, 2012, 2:32 AM MDT for Fremont County, Natrona County, Sweetwater County, Wyoming. It took effect at May 27, 2012, 9:00 AM MDT. It was in force for 12 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
- May 27, 2012, 2:32 AM MDT (08:32 UTC)
- In effect from
- May 27, 2012, 9:00 AM MDT
- Expired
- May 27, 2012, 9:00 PM MDT
- In force
- 12 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 08:33 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, 8.5 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
- 568 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 276 m²/s²
- 0-3 km storm-relative helicity
- 393 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
472 WWUS75 KRIW 270832 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 232 AM MDT SUN MAY 27 2012 ...STRONG WIND WILL IMPACT PORTIONS OF SOUTHERN WYOMING TODAY... .SURFACE LOW PRESSURE WILL LIFT INTO THE NORTHERN HIGH PLAINS TODAY...RESULTING IN A TIGHTENING PRESSURE GRADIENT ACROSS SOUTH AND EAST CENTRAL WYOMING. HIGH WINDS ARE POSSIBLE AS A RESULT. WYZ019-020-271645- /O.UPG.KRIW.HW.A.0021.120527T1500Z-120528T0300Z/ /O.NEW.KRIW.HW.W.0022.120527T1500Z-120528T0300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITIES OF...JEFFREY CITY...CASPER 232 AM MDT SUN MAY 27 2012 ...HIGH WIND WARNING IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * TIMING...WIND WILL INCREASE THIS MORNING AND CONTINUE INTO THE EVENING. * WINDS...SOUTHWEST WINDS 30 TO 40 MPH WITH GUSTS TO AROUND 60 MPH. * IMPACTS...TRAVEL ALONG HIGHWAY 20 26...ALONG INTERSTATE 25 AND HIGHWAYS 135...220 AND 287 WILL BECOME HAZARDOUS DUE TO STRONG SOUTHWEST WINDS. THOSE TRAVELING IN HIGH PROFILE VEHICLES AND THOSE TOWING LIGHT TRAILERS SHOULD BE ESPECIALLY CAUTIOUS. 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. && $$ BERC
2 follow-up statements
427 WWUS75 KRIW 271503 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 903 AM MDT SUN MAY 27 2012 ...STRONG WIND WILL IMPACT PORTIONS OF CENTRAL WYOMING TODAY... WYZ019-020-280300- /O.CON.KRIW.HW.W.0022.000000T0000Z-120528T0300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITIES OF...JEFFREY CITY...CASPER 903 AM MDT SUN MAY 27 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING. * TIMING...STRONG WIND WILL OCCUR THROUGH THE EVENING HOURS. * WINDS...SOUTHWEST WINDS 35 TO 45 MPH WITH GUSTS FROM 60 TO 65 MPH. LOCALLY HIGHER WIND GUSTS ARE LIKELY TO OCCUR IN THE GREEN MOUNTAINS AND RATTLESNAKE RANGE. * IMPACTS...TRAVEL ALONG HIGHWAY 20 26...INTERSTATE 25 AND HIGHWAYS 135...220...AND 287 WILL BE HAZARDOUS DUE TO STRONG SOUTHWEST WINDS. THOSE TRAVELING IN HIGH PROFILE VEHICLES AND THOSE TOWING LIGHT TRAILERS SHOULD BE ESPECIALLY CAUTIOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ AR
629 WWUS75 KRIW 280310 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 910 PM MDT SUN MAY 27 2012 WYZ019-020-280415- /O.EXP.KRIW.HW.W.0022.000000T0000Z-120528T0300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITIES OF...JEFFREY CITY...CASPER 910 PM MDT SUN MAY 27 2012 ...HIGH WIND WARNING HAS EXPIRED... THE HIGH WIND WARNING IS NO LONGER IN EFFECT. WINDS HAD SUBSIDED BELOW HIGH WIND THRESHOLDS THIS EVENING. WEST TO SOUTHWEST WIND AT 25 TO 35 MPH WITH GUSTS NEAR 50 MPH WILL CONTINUE OVERNIGHT. $$ AEM
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 2:16 PM MDT | Special Weather Statement | RIW | 44 min | |
| May 27, 3:03 PM MDT | Special Weather Statement | RIW | Big Horn | 42 min |
| May 27, 3:16 PM MDT | Special Weather Statement | RIW | Johnson | 44 min |
Nearby
High Wind Warnings in Wyoming, 2012Every high wind warning in 2012
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.