Alert archive / Nebraska / Flood Watches in 2026
Flood Watch 2, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flood watch at Aug 13, 2026, 2:42 AM MDT for Albany County, Laramie County, Wyoming; 6 counties in Nebraska. It took effect at Aug 13, 2026, 3:00 PM MDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Aug 13, 2026, 2:42 AM MDT (08:42 UTC)
- In effect from
- Aug 13, 2026, 3:00 PM MDT
- Expired
- Aug 13, 2026, 10:00 PM MDT
- In force
- 7 hr
- Issued by
- NWS Cheyenne, WY
- Flood severity
- None
Counties Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Albany County, WY, Laramie County, WY
The radar
The Cheyenne radar (KCYS), 95 km from the middle of the area, began a volume at 08:44 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 8.7 hours before the alert went out and 274 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
- 2200 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 1734 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.5
What forecasters said that day
The local office's own words before this flood watch 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 flood watch went out at Aug 12, 11:25 PM MDT, 3 hours 17 minutes earlier.
Area forecast discussion, Aug 12, 11:25 PM MDT, 3 hours 17 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 13, 3:35 PM MDT | Special Weather Statement | CYS | 40 min | |
| Aug 13, 3:40 PM MDT | Special Weather Statement | CYS | Laramie | 35 min |
| Aug 13, 4:04 PM MDT | Special Weather Statement | CYS | Laramie | 41 min |
| Aug 13, 4:40 PM MDT | Special Weather Statement | CYS | Laramie | 35 min |
| Aug 13, 5:09 PM MDT | Special Weather Statement | CYS | Laramie | 36 min |
| Aug 13, 5:48 PM MDT | Special Weather Statement | CYS | Laramie | 42 min |
Nearby
Flood Watches in Nebraska, 2026Flood Watches in Wyoming, 2026Every flood watch in 2026
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.