Alert archive / Nebraska / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 91, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at May 12, 2022, 7:39 PM CDT for 5 counties in Nebraska. It was in force for 40 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
- May 12, 2022, 7:39 PM CDT (00:39 UTC)
- Expired
- May 12, 2022, 8:19 PM CDT
- In force
- 40 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Burt County, NE, Dodge County, NE, Douglas County, NE, Saunders County, NE, Washington County, NE
The radar
The Omaha radar (KOAX), 20 km from the middle of the area, began a volume at 00:41 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 |
|---|---|---|---|
| May 12, 2:14 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 0.7 hours before the alert went out and 20 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
- 1173 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 2695 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.7
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 Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at May 12, 6:25 PM CDT, 1 hour 14 minutes earlier.
Area forecast discussion, May 12, 6:25 PM CDT, 1 hour 14 minutes before
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</html>Hazardous weather outlook, May 12, 3:11 PM CDT, 4 hours 28 minutes before
Hazardous Weather Outlook National Weather Service Omaha/Valley NE 311 PM CDT Thu May 12 2022 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-131015- Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont- Page-Knox-Cedar-Thurston-Antelope-Pierce-Wayne-Boone-Madison- Stanton-Cuming-Burt-Platte-Colfax-Dodge-Washington-Butler- Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-Otoe-Saline- Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson- 311 PM CDT Thu May 12 2022 This Hazardous Weather Outlook is for portions of southwest Iowa...west central Iowa...east central Nebraska...northeast Nebraska and southeast Nebraska. .DAY ONE...Tonight and Friday A line of severe thunderstorms will move through northeast Nebraska this afternoon. The primary hazard will be winds to 80 mph or stronger. These damaging winds may be accompanied by hail up to the size of golfballs in the most intense storms. This evening, an additional line of strong to severe storms will move across much of eastern Nebraska and western Iowa. The strongest parts of this line of storms will be capable of producing winds to 70 mph or stronger, as well as hail up to the size of quarters. Storms should move out of the area by 2 AM Friday. .DAYS TWO THROUGH SEVEN...Friday night through Thursday Additional thunderstorms will be possible Saturday night into Sunday, though they are not expected to be severe. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon and evening.
In the hours before
Local storm report, May 12, 6:42 PM CDT, 57 minutes before
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</html>Local storm report, May 12, 6:43 PM CDT, 56 minutes before
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</html>Local storm report, May 12, 6:44 PM CDT, 55 minutes before
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</html>Local storm report, May 12, 6:46 PM CDT, 53 minutes before
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</html>Local storm report, May 12, 6:50 PM CDT, 49 minutes before
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</html>The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 7:01 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Jefferson, Lancaster, Saline | 44 min |
| May 12, 7:47 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Johnson, Lancaster, Otoe | 15 min |
| May 12, 10:07 PM CDT | Special Weather Statement | OAX | Burt, Cass, Douglas, Sarpy, Washington | 23 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2022Every severe thunderstorm warning in 2022
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.