Alert archive / Wyoming / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 38, NWS Riverton, WY
NWS Riverton, WY issued this severe thunderstorm warning at Jun 23, 2008, 2:26 PM MDT for Fremont County, Hot Springs County, Wyoming. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 23, 2008, 2:26 PM MDT (20:26 UTC)
- Expired
- Jun 23, 2008, 3:00 PM MDT
- In force
- 34 min
- Issued by
- NWS Riverton, WY
- Area
- Storm-based polygon
Counties Fremont County, WY, Hot Springs County, WY
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 8.4 hours before the alert went out and 461 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
- 61 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1390 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 23, 2:53 AM MDT, 11 hours 33 minutes earlier.
Area forecast discussion, Jun 23, 2:53 AM MDT, 11 hours 33 minutes before
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</html>Hazardous weather outlook, Jun 23, 10:49 AM MDT, 3 hours 37 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 1049 AM MDT MON JUN 23 2008 WYZ001>020-022>030-241100- ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST- BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS- EAST SWEETWATER COUNTY-FLAMING GORGE- GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS- NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN- NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS- ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES- SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN- SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY- TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN- UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN- WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST- YELLOWSTONE NATIONAL PARK- 1049 AM MDT MON JUN 23 2008 ...FLOOD WARNING IN EFFECT FOR LOCATIONS ALONG THE NORTH FORK SHOSHONE RIVER IN PARK COUNTY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE ONCE AGAIN POSSIBLE THIS AFTERNOON AND EVENING ACROSS JOHNSON COUNTY AND NORTHEAST NATRONA COUNTY. ISOLATED SEVERE THUNDERSTORMS IN THESE AREAS WILL BE CAPABLE OF PRODUCING HAIL AND DAMAGING WIND GUSTS OVER 60 MPH. ISOLATED HIGH-BASED THUNDERSTORMS OVER WESTERN AND CENTRAL WYOMING WILL BE WEAKER BUT CAPABLE OF PRODUCING STRONG WIND GUSTS NEAR 50 MPH ALONG WITH OCCASIONAL CLOUD TO GROUND LIGHTNING. PEOPLE PLANNING OUTDOOR ACTIVITIES THIS AFTERNOON AND EVENING SHOULD BE PREPARED SEEK NEARBY SHELTER AS THESE STORMS DEVELOP. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE POSSIBILITY OF AFTERNOON AND EVENING THUNDERSTORMS WILL CONTINUE ACROSS MAINLY NORTH AND EAST CENTRAL WYOMING TUESDAY THROUGH FRIDAY. ISOLATED SEVERE THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WIND WILL BE POSSIBLE...MAINLY OVER JOHNSON COUNTY AND NORTHEASTERN NATRONA COUNTY TUESDAY AND WEDNESDAY...AFTERNOON AND EVENING. SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT ANY HAIL SIZES...ALONG WITH ANY WINDS OF 40 MPH OR GREATER THIS AFTERNOON AND EVENING. TEAM RIVERTON
In the hours before
Special weather statement, Jun 23, 1:20 PM MDT, 1 hour 6 minutes before
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</html>The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 12:32 AM MDT | Special Weather Statement | RIW | 58 min | |
| Jun 23, 12:48 AM MDT | Severe Thunderstorm Warning | RIW | Johnson, Natrona | 42 min |
| Jun 23, 2:01 AM MDT | Special Weather Statement | RIW | Lincoln | 59 min |
| Jun 23, 1:20 PM MDT | Special Weather Statement | RIW | Hot Springs | 55 min |
| Jun 23, 1:25 PM MDT | Special Weather Statement | RIW | Natrona | 65 min |
| Jun 23, 2:00 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Hot Springs | 30 min |
| Jun 23, 2:34 PM MDT | Special Weather Statement | RIW | Natrona | 26 min |
| Jun 23, 3:09 PM MDT | Special Weather Statement | RIW | Hot Springs | 66 min |
| Jun 23, 3:20 PM MDT | Special Weather Statement | RIW | 40 min | |
| Jun 23, 4:01 PM MDT | Special Weather Statement | RIW | Big Horn | 59 min |
| Jun 23, 4:25 PM MDT | Special Weather Statement | RIW | 50 min | |
| Jun 23, 4:52 PM MDT | Special Weather Statement | RIW | Natrona | 53 min |
| Jun 23, 4:57 PM MDT | Special Weather Statement | RIW | Johnson | 63 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2008Every severe thunderstorm warning in 2008
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.