Alert archive / Nebraska / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 20, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 1, 2024, 3:39 AM MDT for 4 counties in Nebraska. It was in force for 22 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 1, 2024, 3:39 AM MDT (09:39 UTC)
- Expired
- Jun 1, 2024, 4:01 AM MDT
- In force
- 22 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Box Butte County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE
The radar
The Cheyenne radar (KCYS), 156 km from the middle of the area, began a volume at 09:40 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 |
|---|---|---|---|
| Jun 1, 2:38 AM MDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 9.7 hours before the alert went out and 254 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
- 266 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 977 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 31, 8:11 PM MDT, 7 hours 28 minutes earlier.
Area forecast discussion, May 31, 8:11 PM MDT, 7 hours 28 minutes before
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Special weather statement, Jun 1, 1:25 AM MDT, 2 hours 14 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 |
|---|---|---|---|---|
| Jun 1, 2:21 PM MDT | Special Weather Statement | CYS | Laramie | 39 min |
| Jun 1, 2:53 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 52 min |
| Jun 1, 3:20 PM MDT | Special Weather Statement | CYS | Laramie | 40 min |
| Jun 1, 3:50 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Laramie | 40 min |
| Jun 1, 4:24 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 51 min |
| Jun 1, 1:25 AM MDT | Special Weather Statement | CYS | Box Butte | 35 min |
| Jun 1, 1:44 AM MDT | Severe Thunderstorm Warning | CYS | Box Butte | 46 min |
| Jun 1, 2:22 AM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Morrill | 23 min |
| Jun 1, 2:25 AM MDT | Special Weather Statement | CYS | Sioux | 35 min |
| Jun 1, 2:57 AM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Sioux | 33 min |
| Jun 1, 2:18 PM MDT | Special Weather Statement | CYS | Kimball | 42 min |
| Jun 1, 4:04 PM MDT | Special Weather Statement | CYS | Cheyenne | 41 min |
| Jun 1, 4:11 PM MDT | Special Weather Statement | CYS | Kimball | 34 min |
| Jun 1, 5:08 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 37 min |
| Jun 1, 5:41 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 34 min |
| Jun 1, 5:56 PM MDT | Special Weather Statement | CYS | Morrill | 34 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2024Every severe thunderstorm warning in 2024
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.