Alert archive / Wyoming / High Wind Warnings in 2012
High Wind Warning 18, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Apr 6, 2012, 2:24 AM MDT for Fremont County, Natrona County, Sweetwater County, Wyoming. It took effect at Apr 6, 2012, 10:00 AM MDT. It was in force for 8 hr. 2 reports 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 6, 2012, 2:24 AM MDT (08:24 UTC)
- In effect from
- Apr 6, 2012, 10:00 AM MDT
- Expired
- Apr 6, 2012, 6:22 PM MDT
- In force
- 8 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 08:26 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 6, 2:41 PM MDT | SNOW 2 | 23 Nw Dubois, WY | BROOKS LAKE LODGE |
| Apr 6, 2:50 PM MDT | SNOW 1 | 10 Wnw Dubois, 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 00:00Z, 8.4 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
- 4336 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
701 WWUS75 KRIW 060824 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 224 AM MDT FRI APR 6 2012 ...HIGH WINDS WILL DEVELOP FRIDAY AFTERNOON IN PORTIONS OF SWEETWATER...FREMONT AND NATRONA COUNTIES... .A COMBINATION OF AN INCREASING SURFACE PRESSURE GRADIENT AND AN UPPER LEVEL JET WILL COMBINE FOR HIGH WINDS DEVELOPING ACROSS PORTIONS OF SWEETWATER...FREMONT AND NATRONA COUNTIES LATE THIS MORNING INTO THIS EVENING. WYZ030-062100- /O.UPG.KRIW.HW.A.0017.120406T1800Z-120407T0200Z/ /O.NEW.KRIW.HW.W.0018.120406T1600Z-120407T0000Z/ EAST SWEETWATER COUNTY- INCLUDING THE CITY OF...WAMSUTTER 224 AM MDT FRI APR 6 2012 ...HIGH WIND WARNING IN EFFECT FROM 10 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 10 AM THIS MORNING TO 6 PM MDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...WINDS WILL INCREASE ACROSS THE AREA THIS MORNING AND REMAIN STRONG THROUGH THE AFTERNOON. * WIND...SOUTHWEST WINDS OF 30 TO 40 MPH GUSTING TO 60 MPH WILL DEVELOP. * IMPACTS...TRAVEL FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BECOME HAZARDOUS ALONG INTERSTATE 80. 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. && 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. && $$ WYZ019-062100- /O.UPG.KRIW.HW.A.0017.120406T1800Z-120407T0200Z/ /O.NEW.KRIW.HW.W.0018.120406T1600Z-120407T0000Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 224 AM MDT FRI APR 6 2012 ...HIGH WIND WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...WINDS WILL INCREASE ACROSS THE AREA THIS MORNING AND REMAIN STRONG INTO FRIDAY EVENING. * WIND...SOUTHWEST WINDS OF 30 TO 40 MPH GUSTING TO 60 MPH WILL DEVELOP. * IMPACTS...TRAVEL FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BECOME HAZARDOUS ALONG HIGHWAY 287 FROM BEAVER RIM TO MUDDY GAP... AND HIGHWAY 135 FROM SAND DRAW TO SWEETWATER STATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ017-018-062100- /O.UPG.KRIW.HW.A.0017.120406T1800Z-120407T0200Z/ /O.NEW.KRIW.HW.W.0018.120406T1800Z-120407T0000Z/ WIND RIVER BASIN-LANDER FOOTHILLS- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI...LANDER 224 AM MDT FRI APR 6 2012 ...HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 6 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM MDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...WINDS WILL INCREASE ACROSS THE AREA LATE THIS MORNING AND REMAIN STRONG THROUGH THE AFTERNOON. * WIND...SOUTHWEST WINDS OF 35 TO 40 MPH GUSTING TO 60 MPH WILL DEVELOP. * IMPACTS...TRAVEL FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BECOME HAZARDOUS ALONG HIGHWAYS 20 AND 26...287...789 AND 28. 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. && $$ WYZ020-062100- /O.UPG.KRIW.HW.A.0017.120406T1800Z-120407T0200Z/ /O.NEW.KRIW.HW.W.0018.120406T1800Z-120407T0200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 224 AM MDT FRI APR 6 2012 ...HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...WINDS WILL INCREASE ACROSS THE AREA THIS MORNING AND REMAIN STRONG INTO FRIDAY EVENING. * WIND...SOUTHWEST WINDS OF 35 TO 40 MPH GUSTING TO 60 MPH WILL DEVELOP. * IMPACTS...TRAVEL FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BECOME HAZARDOUS ALONG INTERSTATE 25...WYOMING BOULEVARD ON THE SOUTH SIDE OF CASPER...AND HIGHWAYS 20 26 AND 220. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$
2 follow-up statements
197 WWUS75 KRIW 062030 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 230 PM MDT FRI APR 6 2012 ...HIGH WINDS WILL DEVELOP FRIDAY AFTERNOON IN PORTIONS OF SWEETWATER...FREMONT AND NATRONA COUNTIES... .A COMBINATION OF AN INCREASING SURFACE PRESSURE GRADIENT AND AN UPPER LEVEL JET WILL COMBINE FOR HIGH WINDS DEVELOPING ACROSS PORTIONS OF EXTREME NORTHERN SWEETWATER...SOUTHERN FREMONT AND NATRONA COUNTIES INTO THIS EVENING. WYZ017-018-030-062130- /O.CAN.KRIW.HW.W.0018.000000T0000Z-120407T0000Z/ WIND RIVER BASIN-LANDER FOOTHILLS-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI...LANDER... WAMSUTTER 230 PM MDT FRI APR 6 2012 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH WIND WARNING. SOUTHWEST WINDS OF 30 MPH WITH GUSTS TO 50 MPH ARE EXPECTED INTO THIS EVENING. HIGH WINDS ARE NO LONGER EXPECTED. $$ WYZ019-070000- /O.CON.KRIW.HW.W.0018.000000T0000Z-120407T0000Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 230 PM MDT FRI APR 6 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * SUMMARY AND TIMING...WINDS WILL INCREASE ACROSS THE AREA THIS AFTERNOON AND REMAIN STRONG INTO THE EVENING. * WIND...SOUTHWEST WINDS OF 30 TO 40 MPH GUSTING TO 60 MPH WILL DEVELOP. * IMPACTS...TRAVEL FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BECOME HAZARDOUS ALONG HIGHWAY 287 FROM BEAVER RIM TO MUDDY GAP... AND HIGHWAY 135 FROM SAND DRAW TO SWEETWATER STATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-070000- /O.CON.KRIW.HW.W.0018.000000T0000Z-120407T0200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 230 PM MDT FRI APR 6 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING. * SUMMARY AND TIMING...WINDS WILL INCREASE ACROSS THE AREA THIS AFTERNOON AND REMAIN STRONG INTO THE EVENING. * WIND...SOUTHWEST WINDS OF 35 TO 40 MPH GUSTING TO 60 MPH WILL DEVELOP. * IMPACTS...TRAVEL FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BECOME HAZARDOUS ALONG INTERSTATE 25...WYOMING BOULEVARD ON THE SOUTH SIDE OF CASPER...AND HIGHWAYS 20 26 AND 220. 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. && $$ C.BAKER
840 WWUS75 KRIW 070022 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 622 PM MDT FRI APR 6 2012 ...HIGH WINDS HAVE DIMINISHED ACROSS NATRONA AND SOUTHEAST FREMONT COUNTIES... .HIGH WINDS THAT BLEW ACROSS PORTIONS OF NATRONA AND SOUTHEAST FREMONT COUNTIES EARLIER THIS AFTERNOON HAVE DIMINISHED. WYZ020-070130- /O.CAN.KRIW.HW.W.0018.000000T0000Z-120407T0200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 622 PM MDT FRI APR 6 2012 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH WIND WARNING. HIGH WINDS THAT BLEW ACROSS PORTIONS OF NATRONA COUNTY HAVE DIMINISHED. THEREFORE THE HIGH WIND WARNING FOR THE LOWER ELEVATIONS OF NATRONA COUNTY HAS BEEN CANCELLED. $$ WYZ019-070130- /O.EXP.KRIW.HW.W.0018.000000T0000Z-120407T0000Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 622 PM MDT FRI APR 6 2012 ...HIGH WIND WARNING HAS EXPIRED... THE HIGH WIND WARNING IS NO LONGER IN EFFECT. HIGH WINDS THAT BLEW ACROSS PORTIONS OF THE GREEN MOUNTAINS AND RATTLESNAKE RANGE HAVE DIMINISHED. THEREFORE THE HIGH WIND WARNING HAS BEEN ALLOWED TO EXPIRE. $$ LIPSON
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 2:40 AM MDT | Winter Weather Advisory | RIW | Fremont, Hot Springs, Lincoln, Park, Sublette, Teton | 24 hr |
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.