Alert archive / Wyoming / High Wind Warnings in 2012
High Wind Warning 19, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Apr 12, 2012, 8:30 AM MDT for 4 counties in Wyoming. It was in force for 6 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 12, 2012, 8:30 AM MDT (14:30 UTC)
- Expired
- Apr 12, 2012, 2:58 PM MDT
- In force
- 6 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Johnson County, WY, Natrona County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 63 km from the middle of the area, began a volume at 14:32 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 12, 9:10 AM MDT | NON-TSTM WND GST 70 | 5 E Ervay, WY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 2.5 hours before the alert went out and 57 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
- 1793 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -42 m²/s²
- 0-3 km storm-relative helicity
- -43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
198 WWUS75 KRIW 121430 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 830 AM MDT THU APR 12 2012 ...HIGH WIND WARNING TODAY FOR PARTS OF CENTRAL WYOMING... .AN INCREASING SURFACE PRESSURE GRADIENT WILL PRODUCE HIGH WINDS ACROSS PORTIONS OF SOUTHERN AND EASTERN FREMONT...NATRONA AND SOUTHERN JOHNSON COUNTY TODAY. WYZ019-130000- /O.NEW.KRIW.HW.W.0019.120412T1430Z-120413T0000Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 830 AM MDT THU APR 12 2012 ...HIGH WIND WARNING IN EFFECT UNTIL 6 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * SUMMARY AND TIMING...HIGH WINDS WILL CONTINUE THIS MORNING TAPERING OFF THROUGH THE AFTERNOON. * WIND...SOUTHWEST WINDS 40 TO 45 MPH WITH GUSTS TO 60 MPH. * IMPACTS...STRONG CROSS WINDS MAY MAKE TRAVEL HAZARDOUS FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES ALONG HIGHWAY 287 FROM BEAVER RIM TO MUDDY GAP. 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. && $$ WYZ020-130000- /O.NEW.KRIW.HW.W.0019.120412T1430Z-120413T0000Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 830 AM MDT THU APR 12 2012 ...HIGH WIND WARNING IN EFFECT UNTIL 6 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT UNTIL 6 PM MDT THIS EVENING. SUMMARY AND TIMING...HIGH WINDS WILL CONTINUE THIS MORNING TAPERING OFF THROUGH THE AFTERNOON. * WIND...SOUTHWEST WINDS 40 TO 45 MPH WITH GUSTS TO 60 MPH. * IMPACTS...STRONG CROSS WINDS MAY MAKE TRAVEL HAZARDOUS FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES ALONG INTERSTATE 25 AND HIGHWAYS 20 26...220 AND ALONG WYOMING BOULEVARD ON THE SOUTH SIDE OF CASPER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ011-130000- /O.NEW.KRIW.HW.W.0019.120412T1430Z-120413T0000Z/ SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITY OF...KAYCEE 830 AM MDT THU APR 12 2012 ...HIGH WIND WARNING IN EFFECT UNTIL 6 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * SUMMARY AND TIMING...HIGH WINDS WILL CONTINUE THIS MORNING TAPERING OFF THROUGH THE AFTERNOON. * WIND...SOUTHWEST WINDS 40 TO 45 MPH WITH GUSTS TO 60 MPH. * IMPACTS...STRONG CROSS WINDS MAY MAKE TRAVEL HAZARDOUS FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES ALONG INTERSTATE 25 AND HIGHWAYS 192 AND 196. 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. && $$ C.BAKER
1 follow-up statement
122 WWUS75 KRIW 122058 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 258 PM MDT THU APR 12 2012 ...THE HIGH WIND WARNING FOR PORTIONS OF CENTRAL WYOMING HAS BEEN CANCELLED... .AFTER GUSTING FROM 60 TO 70 MPH ACROSS THE WARNED AREA EARLIER TODAY... THE WINDS HAVE DECREASED THIS AFTERNOON AND SHOULD CONTINUE TO DECREASE. WYZ011-019-020-122200- /O.CAN.KRIW.HW.W.0019.000000T0000Z-120413T0000Z/ SOUTHEAST JOHNSON COUNTY-GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITIES OF...KAYCEE...JEFFREY CITY...CASPER 258 PM MDT THU APR 12 2012 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH WIND WARNING. AFTER GUSTING FROM 60 TO 70 MPH ACROSS THE WARNED AREA EARLIER TODAY... THE WINDS HAVE DECREASED THIS AFTERNOON AND SHOULD CONTINUE TO DECREASE. $$ C.BAKER
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 2:03 PM MDT | Special Weather Statement | RIW | Hot Springs | 42 min |
| Apr 12, 2:39 PM MDT | Special Weather Statement | RIW | Hot Springs | 51 min |
| Apr 12, 3:18 PM MDT | Special Weather Statement | RIW | Washakie | 42 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.