Alert archive / Nebraska / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 54, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at May 30, 2023, 4:26 PM MDT for Dawes County, Sioux County, Nebraska. It was in force for 20 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
- May 30, 2023, 4:26 PM MDT (22:26 UTC)
- Expired
- May 30, 2023, 4:46 PM MDT
- In force
- 20 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Dawes County, NE, Sioux County, NE
The radar
The Rapid City radar (KUDX), 176 km from the middle of the area, began a volume at 22:27 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 30, 3:56 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 10.4 hours before the alert went out and 169 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
- 17 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 2057 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 13 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 Cheyenne, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at May 30, 3:07 PM MDT, 1 hour 19 minutes earlier.
Area forecast discussion, May 30, 3:07 PM MDT, 1 hour 19 minutes before
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</html>Hazardous weather outlook, May 30, 2:14 PM MDT, 2 hours 12 minutes before
Hazardous Weather Outlook National Weather Service Cheyenne WY 214 PM MDT Tue May 30 2023 WYZ101>119-312015- Converse County Lower Elevations-Niobrara County- North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- East Platte County-Goshen County-Central Carbon County- North Snowy Range Foothills-Southwest Carbon County- Sierra Madre Range-Upper North Platte River Basin-Snowy Range- Laramie Valley-South Laramie Range-South Laramie Range Foothills- Central Laramie County-East Laramie County- 214 PM MDT Tue May 30 2023 This hazardous weather outlook is for portions of east central Wyoming...south central Wyoming and southeast Wyoming. .DAY ONE...THIS AFTERNOON AND TONIGHT Scattered thunderstorms are possible across southeast Wyoming this afternoon. These storms could produce hail and strong winds. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A Marginal Risk for severe thunderstorms has been outlined for parts of southeast Wyoming from Pine Bluffs to Cheyenne to Wheatland to Torrington Wednesday afternoon. Large hail and damaging downburst winds are possible Wednesday afternoon. Daily chances for showers and thunderstorms continue through the week. Storms could contain hail and gusty winds. Storm coverage will increase through the week with widespread storms with heavy rain expected by the end of the work week. Flash flooding risks will be elevated. .Spotter information statement... Spotters are encouraged to report severe weather to the National Weather Service in Cheyenne. NEZ002-003-019>021-054-055-095-096-312015- Dawes County-Box Butte County-Scotts Bluff County-Banner County- Morrill County-Kimball County-Cheyenne County- Northern Sioux County-Southern Sioux County- 214 PM MDT Tue May 30 2023 This hazardous weather outlook is for portions of panhandle Nebraska. .DAY ONE...THIS AFTERNOON AND TONIGHT Scattered thunderstorms are possible across western Nebraska this afternoon. Some storms may be severe, capable of producing large hail and damaging winds. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A Marginal Risk for severe thunderstorms has been outlined for parts of the Nebraska Panhandle Wednesday afternoon. Large hail and damaging downburst winds are possible Wednesday afternoon. Daily chances for showers and thunderstorms continue through the week. Storms could contain hail and gusty winds. Storm coverage will increase through the week with widespread storms with heavy rain expected by the end of the work week. Flash flooding risks will be elevated. .Spotter information statement...
In the hours before
Special weather statement, May 30, 1:35 PM MDT, 2 hours 51 minutes before
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</html>Special weather statement, May 30, 2:41 PM MDT, 1 hour 45 minutes before
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</html>Special weather statement, May 30, 3:02 PM MDT, 1 hour 24 minutes before
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</html>Special weather statement, May 30, 4:08 PM MDT, 18 minutes before
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</html>Special weather statement, May 30, 4:18 PM MDT, 8 minutes before
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</html>The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 1:35 PM MDT | Special Weather Statement | CYS | Platte | 25 min |
| May 30, 2:41 PM MDT | Special Weather Statement | CYS | Niobrara | 34 min |
| May 30, 2:53 PM MDT | Special Weather Statement | CYS | Goshen | 37 min |
| May 30, 3:02 PM MDT | Special Weather Statement | CYS | Goshen | 43 min |
| May 30, 4:08 PM MDT | Special Weather Statement | CYS | Laramie | 37 min |
| May 30, 4:49 PM MDT | Special Weather Statement | CYS | Laramie | 41 min |
| May 30, 5:36 PM MDT | Special Weather Statement | CYS | Converse | 39 min |
| May 30, 4:18 PM MDT | Special Weather Statement | CYS | Dawes | 42 min |
| May 30, 4:53 PM MDT | Special Weather Statement | CYS | Dawes | 37 min |
| May 30, 5:12 PM MDT | Special Weather Statement | CYS | Dawes | 33 min |
| May 30, 5:32 PM MDT | Special Weather Statement | CYS | Banner, Box Butte, Scotts Bluff | 43 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2023Every severe thunderstorm warning in 2023
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.