Alert archive / Wyoming / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 18, NWS Riverton, WY
NWS Riverton, WY issued this severe thunderstorm warning at Jul 24, 2022, 8:48 PM MDT for Big Horn County, Park County, Wyoming. It was in force for 87 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
- Jul 24, 2022, 8:48 PM MDT (02:48 UTC)
- Expired
- Jul 24, 2022, 10:15 PM MDT
- In force
- 87 min
- Issued by
- NWS Riverton, WY
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Big Horn County, WY, Park County, WY
The radar
The Billings radar (KBLX), 149 km from the middle of the area, began a volume at 02:48 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 00:00Z, 2.8 hours before the alert went out and 165 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 5040 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 36 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 Jul 24, 4:50 PM MDT, 3 hours 58 minutes earlier.
Area forecast discussion, Jul 24, 4:50 PM MDT, 3 hours 58 minutes before
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</html>Hazardous weather outlook, Jul 24, 4:42 AM MDT, 16 hours 6 minutes before
Hazardous Weather Outlook National Weather Service Riverton WY 442 AM MDT Sun Jul 24 2022 WYZ001>020-022>030-251045- 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- 442 AM MDT Sun Jul 24 2022 ...Red Flag Warning in Effect This Afternoon and Evening Across portions of Teton and Lincoln counties... This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and Tonight. Elevated to critical fire danger in the west. Scattered showers and thunderstorms over Sweetwater county and east of the Divide. A few storms could be strong with hail and damaging wind gusts. A cold front with a shift to strong north winds gusting 35 to 50 mph east of the Divide during the evening and early overnight. The Bighorn Canyon Recreation Area in Big Horn County could see locally higher wind gusts around and just after sunset as strong outflow winds push though the steep terrain features. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Elevated fire weather conditions are likely each afternoon and evening through mid-week, with no appreciable widespread wetting precipitation in the forecast. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions, according to standard operating procedures.
In the hours before
Special weather statement, Jul 24, 3:35 PM MDT, 5 hours 13 minutes before
Special Weather Statement
National Weather Service Riverton WY
335 PM MDT Sun Jul 24 2022
WYZ004-006-008-242200-
North Big Horn Basin-Southeast Big Horn Basin-Bighorn Mountains West-
335 PM MDT Sun Jul 24 2022
...A strong thunderstorm will impact portions of southeastern Big
Horn County through 400 PM MDT...
At 335 PM MDT, Doppler radar was tracking a strong thunderstorm near
Hyattville, or 16 miles northwest of Ten Sleep, moving northeast at
20 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
This strong thunderstorm will be near...
Hyattville around 350 PM MDT.
Other locations in the path of this storm include Medicine Lodge
Archaeological Site and Paintrock Canyon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4412 10762 4418 10783 4446 10777 4433 10735
TIME...MOT...LOC 2135Z 215DEG 18KT 4420 10770
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
RoweSpecial weather statement, Jul 24, 4:18 PM MDT, 4 hours 30 minutes before
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</html>Local storm report, Jul 24, 4:32 PM MDT, 4 hours 16 minutes before
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</html>Special weather statement, Jul 24, 5:35 PM MDT, 3 hours 13 minutes before
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</html>Special weather statement, Jul 24, 5:57 PM MDT, 2 hours 51 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 |
|---|---|---|---|---|
| Jul 24, 7:25 PM MDT | Special Weather Statement | RIW | 35 min | |
| Jul 24, 8:31 PM MDT | Special Weather Statement | RIW | 29 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2022Every severe thunderstorm warning in 2022
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.