Alert archive / Nebraska / Red Flag Warnings in 2026

Red Flag Warning 2, NWS Omaha, NE

February 17, 202610 counties in Nebraska; 5 counties in Iowa

NWS Omaha, NE issued this red flag warning at Feb 17, 2026, 7:43 PM CST for 10 counties in Nebraska; 5 counties in Iowa. It took effect at Feb 18, 2026, 9:00 AM CST. It was in force for 9 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: Feb 17, 2026, 7:43 PM CST (01:43 UTC)
In effect from: Feb 18, 2026, 9:00 AM CST
Expired: Feb 18, 2026, 5:40 PM CST
In force: 9 hr
Issued by: NWS Omaha, NE

Counties Harrison County, IA, Monona County, IA, Montgomery County, IA, Pottawattamie County, IA, Shelby County, IA, Burt County, NE, Cedar County, NE, Cuming County, NE, Dodge County, NE, Knox County, NE, Pierce County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 65 km from the middle of the area, began a volume at 01:42 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

Omaha, NE (KOAX), launched 00:00Z, 1.7 hours before the alert went out and 65 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2261 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 228 m²/s²
0-3 km storm-relative helicity: 260 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Omaha, NE wrote its last area forecast discussion before this red flag warning went out at Feb 17, 5:26 PM CST, 2 hours 17 minutes earlier.

Area forecast discussion, Feb 17, 5:26 PM CST, 2 hours 17 minutes before

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Hazardous weather outlook, Feb 17, 11:42 AM CST, 8 hours 1 minute before

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The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 17, 10:06 PM CST	Wind Advisory	OAX	Antelope, Cedar, Cuming, Knox, Madison, Pierce and 3 more	6 hr
Feb 18, 11:44 AM CST	Winter Weather Advisory	OAX	Antelope, Boone, Burt, Butler, Cass, Cedar and 16 more	40 hr

Nearby

Red Flag Warnings in Nebraska, 2026 Red Flag Warnings in Iowa, 2026 Every red flag warning 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.