Alert archive / Wyoming / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 29, NWS Riverton, WY
NWS Riverton, WY issued this severe thunderstorm warning at Jun 22, 2014, 12:51 PM MDT for Fremont County, Park County, Wyoming. It was in force for 30 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 22, 2014, 12:51 PM MDT (18:51 UTC)
- Expired
- Jun 22, 2014, 1:21 PM MDT
- In force
- 30 min
- Issued by
- NWS Riverton, WY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Fremont County, WY, Park County, WY
The radar
The Riverton/Lander radar (KRIW), 94 km from the middle of the area, began a volume at 18:52 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 12:00Z, 6.9 hours before the alert went out and 98 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
- 30 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1160 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 73 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 22, 11:15 AM MDT, 1 hour 36 minutes earlier.
Area forecast discussion, Jun 22, 11:15 AM MDT, 1 hour 36 minutes before
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</html>Hazardous weather outlook, Jun 22, 4:00 AM MDT, 8 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 400 AM MDT SUN JUN 22 2014 WYZ001>020-022>030-231200- 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- 400 AM MDT SUN JUN 22 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT ISOLATED TO SCATTERED THUNDERSTORMS...ESPECIALLY EAST OF DIVIDE. SOME STORMS MAY HAVE HAIL...HEAVY RAIN AND GUSTY WIND. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY MONDAY AND TUESDAY...ISOLATED TO SCATTERED THUNDERSTORMS EACH DAY...WITH THE BEST CONCENTRATION EXPECTED ALONG AND EAST OF THE DIVIDE. SOME STORMS MAY BECOME STRONG WITH HAIL...LOCALLY HEAVY RAIN AND GUSTY WIND. WEDNESDAY AND THURSDAY...ISOLATED AFTERNOON AND EVENING THUNDERSTORMS...A LITTLE MORE NUMEROUS IN THE MOUNTAINS. FRIDAY...A BETTER CHANCE OF SHOWERS AND THUNDERSTORMS OVER THE REGION. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE URGED TO REPORT STRONG WIND GUSTS OR HAIL. TEAM RIVERTON
In the hours before
Special weather statement, Jun 22, 10:43 AM MDT, 2 hours 8 minutes before
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</html>Special weather statement, Jun 22, 11:50 AM MDT, 1 hour 1 minute before
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</html>Special weather statement, Jun 22, 12:30 PM MDT, 21 minutes before
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</html>Special weather statement, Jun 22, 12:47 PM MDT, 4 minutes before
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</html>Special weather statement, Jun 22, 12:48 PM MDT, 3 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 21, 8:50 PM MDT | Special Weather Statement | RIW | Big Horn | 40 min |
| Jun 22, 12:30 PM MDT | Special Weather Statement | RIW | Teton | 60 min |
| Jun 22, 12:47 PM MDT | Special Weather Statement | RIW | Hot Springs | 43 min |
| Jun 22, 12:48 PM MDT | Special Weather Statement | RIW | 57 min | |
| Jun 22, 1:11 PM MDT | Special Weather Statement | RIW | Fremont | 49 min |
| Jun 22, 1:28 PM MDT | Special Weather Statement | RIW | Fremont | 47 min |
| Jun 22, 2:07 PM MDT | Special Weather Statement | RIW | 38 min | |
| Jun 22, 2:14 PM MDT | Special Weather Statement | RIW | 61 min | |
| Jun 22, 2:21 PM MDT | Special Weather Statement | RIW | Hot Springs | 39 min |
| Jun 22, 2:21 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Natrona | 38 min |
| Jun 22, 2:40 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs, Washakie | 50 min |
| Jun 22, 2:48 PM MDT | Special Weather Statement | RIW | Teton | 42 min |
| Jun 22, 2:50 PM MDT | Special Weather Statement | RIW | Teton | 40 min |
| Jun 22, 2:53 PM MDT | Special Weather Statement | RIW | Natrona | 52 min |
| Jun 22, 3:04 PM MDT | Special Weather Statement | RIW | Natrona | 56 min |
| Jun 22, 3:11 PM MDT | Special Weather Statement | RIW | Natrona | 64 min |
| Jun 22, 3:14 PM MDT | Special Weather Statement | RIW | Hot Springs | 46 min |
| Jun 22, 3:31 PM MDT | Special Weather Statement | RIW | Washakie | 44 min |
| Jun 22, 3:40 PM MDT | Special Weather Statement | RIW | 50 min | |
| Jun 22, 3:41 PM MDT | Special Weather Statement | RIW | Teton | 49 min |
| Jun 22, 3:47 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs, Washakie | 32 min |
| Jun 22, 3:50 PM MDT | Special Weather Statement | RIW | Natrona | 55 min |
| Jun 22, 4:23 PM MDT | Special Weather Statement | RIW | Washakie | 52 min |
| Jun 22, 4:36 PM MDT | Special Weather Statement | RIW | Natrona | 39 min |
| Jun 22, 4:40 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 35 min |
| Jun 22, 4:50 PM MDT | Special Weather Statement | RIW | Washakie | 40 min |
| Jun 22, 5:16 PM MDT | Special Weather Statement | RIW | Johnson | 44 min |
| Jun 22, 5:18 PM MDT | Special Weather Statement | RIW | Johnson | 42 min |
| Jun 22, 5:29 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 46 min |
| Jun 22, 5:45 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 45 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2014Every severe thunderstorm warning in 2014
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.