Alert archive / Nebraska / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 261, NWS Hastings, NE
NWS Hastings, NE issued this severe thunderstorm warning at Aug 18, 2026, 1:06 AM CDT for 7 counties in Nebraska. It was in force for 39 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
- Aug 18, 2026, 1:06 AM CDT (06:06 UTC)
- Expired
- Aug 18, 2026, 1:45 AM CDT
- In force
- 39 min
- Issued by
- NWS Hastings, NE
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Adams County, NE, Clay County, NE, Fillmore County, NE, Hall County, NE, Hamilton County, NE, Merrick County, NE, York County, NE
The radar
The Grand Island radar (KUEX), 60 km from the middle of the area, began a volume at 06:07 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 |
|---|---|---|---|
| Aug 17, 8:32 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 6.1 hours before the alert went out and 218 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
- 2080 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 2076 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
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 Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 18, 12:46 AM CDT, 20 minutes earlier.
Area forecast discussion, Aug 18, 12:46 AM CDT, 20 minutes before
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</html>Hazardous weather outlook, Aug 17, 8:15 PM CDT, 4 hours 51 minutes before
Hazardous Weather Outlook National Weather Service Hastings NE 815 PM CDT Mon Aug 17 2026 KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087- 181200- Phillips-Smith-Jewell-Rooks-Osborne-Mitchell-Valley-Greeley-Nance- Sherman-Howard-Merrick-Polk-Dawson-Buffalo-Hall-Hamilton-York- Gosper-Phelps-Kearney-Adams-Clay-Fillmore-Furnas-Harlan-Franklin- Webster-Nuckolls-Thayer- 815 PM CDT Mon Aug 17 2026 This Hazardous Weather Outlook is for south central Nebraska and portions of north central Kansas. .DAY ONE...Tonight. Scattered thunderstorms are expected to arrive from the north and northwest this evening into tonight. Some of these may be severe with hail to the size of ping pong balls and wind gusts over 60 MPH. This threat is primarily in south-central Nebraska, and most of Kansas is expected to remain dry through tonight. The main timeframe for severe weather is through 2am. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. A few isolated storms are possible on Tuesday afternoon through Tuesday night, although many areas will remain dry. If storms develop, a few could become severe with wind gusts to 60 MPH and hail to the size of ping pong balls. Heat index values may also reach 100 degrees in southern parts of Rooks, Osborne and Mitchell Counties Tuesday afternoon. Another round of thunderstorms is expected Wednesday into Wednesday evening, and a few of these could become strong to severe. Off and on chances for thunderstorms continue Thursday through Sunday. && More information may be obtained at the following web page: https://www.weather.gov/hastings
In the hours before
Local storm report, Aug 17, 11:17 PM CDT, 1 hour 49 minutes before
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</html>Local storm report, Aug 17, 11:21 PM CDT, 1 hour 45 minutes before
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</html>Special weather statement, Aug 17, 11:38 PM CDT, 1 hour 28 minutes before
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</html>Local storm report, Aug 18, 12:19 AM CDT, 47 minutes before
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</html>Local storm report, Aug 18, 1:04 AM CDT, 2 minutes before
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</html>Local storm report, Aug 18, 1:06 AM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 7:52 PM CDT | Severe Thunderstorm Warning | GID | Greeley, Valley | 38 min |
| Aug 17, 8:24 PM CDT | Severe Thunderstorm Warning | GID | Greeley, Valley | 51 min |
| Aug 17, 8:47 PM CDT | Tornado Warning | GID | Greeley, Valley | 28 min |
| Aug 17, 9:07 PM CDT | Tornado Warning | GID | Greeley, Valley | 19 min |
| Aug 17, 9:10 PM CDT | Special Weather Statement | GID | Dawson | 50 min |
| Aug 17, 9:24 PM CDT | Severe Thunderstorm Warning | GID | Greeley, Howard, Sherman, Valley | 51 min |
| Aug 17, 9:27 PM CDT | Areal Flood Advisory | GID | Valley | 81 min |
| Aug 17, 10:11 PM CDT | Special Weather Statement | GID | Howard | 34 min |
| Aug 17, 10:30 PM CDT | Special Weather Statement | GID | Greeley, Nance | 30 min |
| Aug 17, 10:59 PM CDT | Severe Thunderstorm Warning | GID | Greeley | 16 min |
| Aug 17, 11:38 PM CDT | Special Weather Statement | GID | Greeley, Valley | 52 min |
| Aug 18, 12:08 AM CDT | Severe Thunderstorm Warning | GID | Greeley, Howard, Sherman, Valley | 52 min |
| Aug 18, 12:32 AM CDT | Severe Thunderstorm Warning | GID | Buffalo, Hall, Hamilton, Howard, Merrick, Nance and 1 more | 43 min |
| Aug 18, 1:25 AM CDT | Severe Thunderstorm Warning | GID | Polk, York | 35 min |
| Aug 18, 1:45 AM CDT | Severe Thunderstorm Warning | GID | Fillmore, York | 30 min |
| Aug 18, 2:55 AM CDT | Special Weather Statement | GID | York | 50 min |
| Aug 18, 4:15 AM CDT | Areal Flood Advisory | GID | Greeley, Valley | 4 hr |
| Aug 18, 5:19 AM CDT | Areal Flood Advisory | GID | Howard, Merrick, Nance | 3 hr |
| Aug 18, 7:12 AM CDT | Areal Flood Warning | GID | Greeley, Howard, Nance, Valley | 10 hr |
| Aug 18, 5:06 PM CDT | Areal Flood Warning | GID | Greeley, Valley | 16 hr |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2026Every severe thunderstorm 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.