Alert archive / Nebraska / Red Flag Warnings in 2024
Red Flag Warning 25, NWS Cheyenne, WY
NWS Cheyenne, WY issued this red flag warning at Aug 27, 2024, 12:46 PM MDT for 7 counties in Wyoming; 8 counties in Nebraska. It took effect at Aug 28, 2024, 10:00 AM MDT. It was in force for 10 hr. 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 27, 2024, 12:46 PM MDT (18:46 UTC)
- In effect from
- Aug 28, 2024, 10:00 AM MDT
- Expired
- Aug 28, 2024, 7:51 PM MDT
- In force
- 10 hr
- Issued by
- NWS Cheyenne, WY
Counties Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE, Albany County, WY, Carbon County, WY, Converse County, WY, Goshen County, WY, Laramie County, WY, Niobrara County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 104 km from the middle of the area, began a volume at 18:44 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 12:00Z, 6.8 hours before the alert went out and 360 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
- 1652 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this red flag 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 red flag warning went out at Aug 26, 5:24 PM MDT, 19 hours 22 minutes earlier.
Area forecast discussion, Aug 26, 5:24 PM MDT, 19 hours 22 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 |
|---|---|---|---|---|
| Aug 27, 2:38 AM MDT | Fire Weather Watch | CYS | Albany, Carbon, Converse, Goshen, Niobrara, Platte | 10 hr |
| Aug 26, 6:11 PM MDT | Special Weather Statement | CYS | Sioux | 34 min |
| Aug 26, 6:25 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes, Sioux | 35 min |
| Aug 26, 6:52 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 38 min |
| Aug 26, 11:44 PM MDT | Special Weather Statement | CYS | Cheyenne | 31 min |
Nearby
Red Flag Warnings in Nebraska, 2024Red Flag Warnings in Wyoming, 2024Every red flag 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.