Alert archive / Wyoming / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 47, NWS Riverton, WY
NWS Riverton, WY issued this severe thunderstorm warning at Jun 30, 2015, 2:42 PM MDT for Washakie County, Wyoming. It was in force for 48 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 30, 2015, 2:42 PM MDT (20:42 UTC)
- Expired
- Jun 30, 2015, 3:30 PM MDT
- In force
- 48 min
- Issued by
- NWS Riverton, WY
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
County Washakie County, WY
The radar
The Riverton/Lander radar (KRIW), 113 km from the middle of the area, began a volume at 20:45 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 4, 1:08 PM MDT | Severe Thunderstorm Watch | SPC | 112 days |
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 30, 2:38 PM MDT, 4 minutes earlier.
Area forecast discussion, Jun 30, 2:38 PM MDT, 4 minutes before
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</html>Hazardous weather outlook, Jun 30, 3:03 AM MDT, 11 hours 39 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 303 AM MDT TUE JUN 30 2015 WYZ001>020-022>030-011200- YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS- NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN- SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE- WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- UPPER WIND RIVER BASIN-WIND RIVER BASIN-LANDER FOOTHILLS- GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-STAR VALLEY- SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS- UPPER GREEN RIVER BASIN-SOUTH LINCOLN COUNTY- ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- 303 AM MDT TUE JUN 30 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS...MAINLY IN THE AFTERNOON AND EVENING. GUSTY WINDS AND SMALL HAIL ARE POSSIBLE WITH ANY THUNDERSTORM. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY WEDNESDAY...ISOLATED TO SCATTERED AFTERNOON SHOWERS AND THUNDERSTORMS...MAINLY EAST OF THE DIVIDE. INDEPENDENCE DAY THROUGH SATURDAY...ISOLATED AFTERNOON AND EVENING THUNDERSTORMS MAINLY OVER THE MOUNTAINS AND ADJACENT FOOTHILLS EAST OF THE DIVIDE. SUNDAY AND MONDAY...ISOLATED TO LOCALLY SCATTERED THUNDERSTORMS ACROSS THE ENTIRE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE URGED TO REPORT HAIL...STRONG WINDS GUSTS AND ANY FLOODING. THANK YOU.
In the hours before
Special weather statement, Jun 30, 1:31 PM MDT, 1 hour 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 131 PM MDT TUE JUN 30 2015 WYZ001>008-012>019-025-302200- YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS- NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN- SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- BIGHORN MOUNTAINS WEST-TETON AND GROS VENTRE MOUNTAINS- JACKSON HOLE-WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- UPPER WIND RIVER BASIN-WIND RIVER BASIN-LANDER FOOTHILLS- GREEN MOUNTAINS AND RATTLESNAKE RANGE- UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITIES OF...CANYON...LAKE...MADISON...MAMMOTH... OLD FAITHFUL...TOWER JUNCTION...PAHASKA...CODY...POWELL... LOVELL...GREYBULL...THERMOPOLIS...WORLAND...JACKSON... ATLANTIC CITY...DUBOIS...RIVERTON...LANDER...JEFFREY CITY... BAIROIL...PINEDALE 131 PM MDT TUE JUN 30 2015 ...THUNDERSTORMS THIS AFTERNOON ACROSS NORTHERN AND CENTRAL WYOMING... THUNDERSTORMS HAVE BEGUN TO GENERATE ACROSS NORTHWEST WYOMING THIS AFTERNOON. EXPECT THIS ACTIVITY TO SPREAD EASTWARD ACROSS THE BIGHORN AND WIND RIVER BASINS IN THE NEXT COUPLE OF HOURS. THESE STORMS WILL BE CAPABLE OF PRODUCING BRIEF HEAVY RAIN...SMALL HAIL...WIND GUSTS OF 40 TO 50 MPH...AND OCCASIONAL LIGHTNING STRIKES.
Special weather statement, Jun 30, 2:41 PM MDT, 1 minute 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 29, 6:20 PM MDT | Special Weather Statement | RIW | Park | 40 min |
| Jun 29, 7:27 PM MDT | Special Weather Statement | RIW | Park | 48 min |
| Jun 29, 8:00 PM MDT | Special Weather Statement | RIW | 45 min | |
| Jun 29, 9:04 PM MDT | Special Weather Statement | RIW | 41 min | |
| Jun 29, 9:26 PM MDT | Special Weather Statement | RIW | 49 min | |
| Jun 29, 9:29 PM MDT | Special Weather Statement | RIW | Big Horn | 46 min |
| Jun 29, 9:57 PM MDT | Special Weather Statement | RIW | Hot Springs | 48 min |
| Jun 29, 10:37 PM MDT | Special Weather Statement | RIW | 38 min | |
| Jun 29, 10:59 PM MDT | Special Weather Statement | RIW | Park | 46 min |
| Jun 29, 11:32 PM MDT | Special Weather Statement | RIW | Park | 28 min |
| Jun 30, 2:06 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs, Park, Washakie | 39 min |
| Jun 30, 2:41 PM MDT | Special Weather Statement | RIW | Hot Springs | 49 min |
| Jun 30, 2:47 PM MDT | Special Weather Statement | RIW | Hot Springs | 43 min |
| Jun 30, 2:53 PM MDT | Special Weather Statement | RIW | Fremont | 52 min |
| Jun 30, 3:03 PM MDT | Special Weather Statement | RIW | Fremont | 42 min |
| Jun 30, 3:25 PM MDT | Special Weather Statement | RIW | Washakie | 50 min |
| Jun 30, 3:34 PM MDT | Special Weather Statement | RIW | Washakie | 41 min |
| Jun 30, 3:36 PM MDT | Special Weather Statement | RIW | Hot Springs | 39 min |
| Jun 30, 3:54 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs | 51 min |
| Jun 30, 4:12 PM MDT | Special Weather Statement | RIW | Natrona | 48 min |
| Jun 30, 4:14 PM MDT | Special Weather Statement | RIW | 31 min | |
| Jun 30, 4:16 PM MDT | Special Weather Statement | RIW | Washakie | 44 min |
| Jun 30, 4:29 PM MDT | Special Weather Statement | RIW | Fremont | 46 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2015Every severe thunderstorm warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.