Alert archive / Wyoming / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 68, NWS Riverton, WY
NWS Riverton, WY issued this severe thunderstorm warning at Sep 12, 2013, 4:51 PM MDT for Sweetwater County, Wyoming. It was in force for 54 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
- Sep 12, 2013, 4:51 PM MDT (22:51 UTC)
- Expired
- Sep 12, 2013, 5:45 PM MDT
- In force
- 54 min
- Issued by
- NWS Riverton, WY
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 160 km from the middle of the area, began a volume at 22:53 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 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 Sep 12, 2:33 PM MDT, 2 hours 18 minutes earlier.
Area forecast discussion, Sep 12, 2:33 PM MDT, 2 hours 18 minutes before
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</html>Hazardous weather outlook, Sep 12, 4:00 AM MDT, 12 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 400 AM MDT THU SEP 12 2013 WYZ001>020-022>030-131200- 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 THU SEP 12 2013 ...FLASH FLOOD WATCH FOR THE WIND RIVER MOUNTAINS...THE UPPER WIND RIVER BASIN...AND SOUTHERN ABSAROKA MOUNTAINS THROUGH 6 PM TODAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT EXCESSIVE RAINFALL POSSIBLE ACROSS THE WIND RIVER MOUNTAINS... SOUTHERN ABSAROKA MOUNTAINS...AS WELL AS THE UPPER WIND RIVER BASIN. PLEASE SEE THE FLASH FLOOD WATCH STATEMENT FOR ADDITIONAL DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SIGNIFICANT RAINFALL IS STILL POSSIBLE IN THE WESTERN MOUNTAINS FRIDAY THROUGH THE WEEKEND WITH LOCALLY HEAVY ACROSS THE LOWER ELEVATIONS. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT ANY RAPIDLY RISING CREEKS OR STREAMS...AS WELL AS ANY FLOODING...INCLUDING MUDSLIDES. THANK YOU. TEAM RIVERTON
In the hours before
Special weather statement, Sep 12, 3:29 PM MDT, 1 hour 22 minutes before
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</html>Special weather statement, Sep 12, 3:54 PM MDT, 57 minutes before
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</html>Special weather statement, Sep 12, 3:57 PM MDT, 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
357 PM MDT THU SEP 12 2013
WYZ024-027-122245-
SALT RIVER AND WYOMING RANGES WY-SOUTH LINCOLN COUNTY WY-
357 PM MDT THU SEP 12 2013
...SIGNIFICANT WEATHER ADVISORY FOR EXTREME SOUTHWESTERN SUBLETTE AND
SOUTHERN LINCOLN COUNTIES UNTIL 445 PM MDT...
AT 354 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF
COKEVILLE TO U.S. HWY 30 MILE MARKER 50...AND MOVING NORTHEAST AT 20
MPH.
HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.
THESE STORMS WILL BE NEAR...
PINE CREEK SKI AREA AND LAKE VIVA NAUGHTON AROUND 410 PM MDT.
SUBLETTE-POMEROY BASIN RD AROUND 420 PM MDT.
HAMS FORK RD AROUND 425 PM MDT.
U.S. HWY 89 MILE MARKER 60 AROUND 445 PM MDT.
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
BRIEF HEAVY RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES
AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A
FLOODED ROADWAY.
REPORT HAZARDOUS WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN
RIVERTON AT 1-800-211-1448.
LAT...LON 4239 11106 4253 11096 4215 11030 4174 11058
4202 11106
TIME...MOT...LOC 2157Z 207DEG 19KT 4215 11109 4188 11062
SKRBACSpecial weather statement, Sep 12, 4:05 PM MDT, 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 405 PM MDT THU SEP 12 2013 WYZ030-122245- EAST SWEETWATER COUNTY WY- 405 PM MDT THU SEP 12 2013 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SWEETWATER COUNTY UNTIL 445 PM MDT... AT 402 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9 MILES NORTH OF I80 EXIT 152...OR 21 MILES WEST OF WAMSUTTER...MOVING NORTH AT 5 MPH. HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. RAINFALL AMOUNTS OF 1 TO 2 INCHES HAVE FALLEN WITH THIS STORM. THIS STORM WILL BE NEAR... RURAL CENTRAL SWEETWATER COUNTY THROUGH 445 PM MDT IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. IN ADDITION...THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. BRIEF HEAVY RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. REPORT HAZARDOUS WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4200 10846 4193 10810 4165 10830 4172 10853 TIME...MOT...LOC 2204Z 202DEG 3KT 4177 10837 SKRBAC
Special weather statement, Sep 12, 4:15 PM MDT, 36 minutes before
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</html>Special weather statement, Sep 12, 4:20 PM MDT, 31 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 |
|---|---|---|---|---|
| Sep 12, 2:35 PM MDT | Special Weather Statement | RIW | Sweetwater | 40 min |
| Sep 12, 2:45 PM MDT | Special Weather Statement | RIW | Sweetwater | 45 min |
| Sep 12, 3:01 PM MDT | Special Weather Statement | RIW | Lincoln | 44 min |
| Sep 12, 3:25 PM MDT | Special Weather Statement | RIW | Sweetwater | 50 min |
| Sep 12, 3:27 PM MDT | Special Weather Statement | RIW | Sweetwater | 48 min |
| Sep 12, 3:29 PM MDT | Special Weather Statement | RIW | Sweetwater | 46 min |
| Sep 12, 3:54 PM MDT | Special Weather Statement | RIW | 51 min | |
| Sep 12, 3:57 PM MDT | Special Weather Statement | RIW | Lincoln | 48 min |
| Sep 12, 4:05 PM MDT | Special Weather Statement | RIW | Sweetwater | 40 min |
| Sep 12, 4:15 PM MDT | Special Weather Statement | RIW | Sweetwater | 45 min |
| Sep 12, 4:20 PM MDT | Special Weather Statement | RIW | 40 min | |
| Sep 12, 5:03 PM MDT | Special Weather Statement | RIW | Sweetwater | 42 min |
| Sep 12, 5:28 PM MDT | Special Weather Statement | RIW | Lincoln | 47 min |
| Sep 12, 5:52 PM MDT | Special Weather Statement | RIW | 38 min | |
| Sep 12, 5:54 PM MDT | Special Weather Statement | RIW | 51 min | |
| Sep 12, 5:58 PM MDT | Flash Flood Warning | RIW | Lincoln, Sublette, Sweetwater | 2 hr |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2013Every severe thunderstorm 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.