Alert archive / Wyoming / Flash Flood Warnings in 2013

Flash Flood Warning 11, NWS Riverton, WY

August 9, 2013Fremont County, Wyoming

NWS Riverton, WY issued this flash flood warning at Aug 9, 2013, 7:17 PM MDT for Fremont County, Wyoming. It was in force for 103 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
Aug 9, 2013, 7:17 PM MDT (01:17 UTC)
Expired
Aug 9, 2013, 9:00 PM MDT
In force
103 min
Issued by
NWS Riverton, WY
Area
Storm-based polygon
Flood severity
None

County Fremont County, WY

The radar

The Riverton/Lander radar (KRIW), 13 km from the middle of the area, began a volume at 01:20 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 forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Aug 9, 3:12 PM MDT, 4 hours 5 minutes earlier.

Area forecast discussion, Aug 9, 3:12 PM MDT, 4 hours 5 minutes before
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Hazardous weather outlook, Aug 9, 5:00 AM MDT, 14 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
500 AM MDT FRI AUG 9 2013

WYZ001>020-022>030-101100-
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-
500 AM MDT FRI AUG 9 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED STRONG THUNDERSTORMS WILL BE POSSIBLE
THIS AFTERNOON AND EVENING...MAINLY NORTHEAST OF A LOVELL TO
TO CASPER LINE. THE MAIN THREAT FROM ANY OF THESE STORMS WILL BE
GUSTY WINDS TO 40 MPH AND POSSIBLY SOME PEA TO MARBLE SIZE HAIL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SATURDAY...ISOLATED THUNDERSTORMS WEST...WIDELY SCATTERED
THUNDERSTORMS CENTRAL.

SUNDAY THROUGH WEDNESDAY...ISOLATED THUNDERSTORMS ACROSS THE NORTH
AND EAST CENTRAL.

.SPOTTER INFORMATION STATEMENT...

PLEASE REPORT WINDS OVER 45 MPH AND HAIL OF ANY SIZE. THANK YOU.

TEAM RIVERTON

In the hours before

Special weather statement, Aug 9, 4:03 PM MDT, 3 hours 14 minutes before
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Special weather statement, Aug 9, 4:31 PM MDT, 2 hours 46 minutes before
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Special weather statement, Aug 9, 4:54 PM MDT, 2 hours 23 minutes before
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Special weather statement, Aug 9, 4:55 PM MDT, 2 hours 22 minutes before
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Special weather statement, Aug 9, 4:57 PM MDT, 2 hours 20 minutes before
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Special weather statement, Aug 9, 5:53 PM MDT, 1 hour 24 minutes before
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The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 6:14 PM MDTSpecial Weather StatementRIW46 min
Aug 9, 6:17 PM MDTSpecial Weather StatementRIWHot Springs43 min
Aug 9, 6:19 PM MDTSpecial Weather StatementRIW41 min
Aug 9, 6:51 PM MDTSpecial Weather StatementRIWNatrona39 min
Aug 9, 6:54 PM MDTSpecial Weather StatementRIW51 min
Aug 9, 6:56 PM MDTSpecial Weather StatementRIW49 min
Aug 9, 7:43 PM MDTSpecial Weather StatementRIWWashakie47 min
Aug 10, 1:19 PM MDTSpecial Weather StatementRIW41 min
Aug 10, 2:04 PM MDTSpecial Weather StatementRIWSublette56 min
Aug 10, 2:14 PM MDTSpecial Weather StatementRIWHot Springs46 min
Aug 10, 2:19 PM MDTSpecial Weather StatementRIWNatrona41 min
Aug 10, 2:27 PM MDTSpecial Weather StatementRIWLincoln48 min
Aug 10, 2:31 PM MDTSpecial Weather StatementRIWSublette59 min
Aug 10, 2:59 PM MDTSpecial Weather StatementRIWHot Springs46 min
Aug 10, 3:10 PM MDTSpecial Weather StatementRIWSweetwater65 min
Aug 10, 3:19 PM MDTSpecial Weather StatementRIWSublette56 min
Aug 10, 4:19 PM MDTSpecial Weather StatementRIWWashakie41 min
Aug 10, 5:26 PM MDTSpecial Weather StatementRIWJohnson49 min
Aug 10, 5:43 PM MDTSpecial Weather StatementRIWJohnson47 min

Nearby

Flash Flood Warnings in Wyoming, 2013Every flash flood warning in 2013

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.