Alert archive / Nebraska / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 220, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Jul 10, 2017, 10:44 PM CDT for Antelope County, Boone County, Nebraska. It was in force for 31 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
- Jul 10, 2017, 10:44 PM CDT (03:44 UTC)
- Expired
- Jul 10, 2017, 11:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Antelope County, NE, Boone County, NE
The radar
The Omaha radar (KOAX), 157 km from the middle of the area, began a volume at 03:45 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, 3.7 hours before the alert went out and 157 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
- 2072 J/kg
- Mixed-layer CIN
- -206 J/kg
- Mixed-layer LCL
- 1327 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 Jul 10, 6:23 PM CDT, 4 hours 21 minutes earlier.
Area forecast discussion, Jul 10, 6:23 PM CDT, 4 hours 21 minutes before
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</html>Hazardous weather outlook, Jul 10, 8:37 PM CDT, 2 hours 7 minutes before
Hazardous Weather Outlook National Weather Service Omaha/Valley NE 837 PM CDT Mon Jul 10 2017 NEZ088>093-111545- Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson- 837 PM CDT Mon Jul 10 2017 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST NEBRASKA. .DAY ONE...TONIGHT AND TUESDAY Heat index readings on Tuesday afternoon may reach around 105 degrees in southeast Nebraska during the afternoon hours. A heat advisory is in effect each day. .DAYS TWO THROUGH SEVEN...TUESDAY NIGHT THROUGH MONDAY Hit-and-miss thunderstorms and heat index readings of 100 to 105 degrees or higher are possible through the upcoming week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed tonight or Monday. IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-111545- 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- 837 PM CDT Mon Jul 10 2017 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 TUESDAY A thunderstorm complex will move into the area tonight from the western High plains. The best chance for thunderstorms will be after midnight north of a Columbus to Blair to Harlan Iowa line. Gusty winds of 40 to 60 mph will be the main hazard with the strongest storms, but some small hail could also occur. A slight chance for thunderstorms continues through the day on Tuesday. .DAYS TWO THROUGH SEVEN...TUESDAY NIGHT THROUGH MONDAY Hit-and-miss thunderstorms and heat index readings of 100 to 105 degrees or higher are possible through the upcoming week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed tonight or Monday.
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 11:12 PM CDT | Special Weather Statement | OAX | Antelope, Boone, Madison, Pierce | 48 min |
| Jul 10, 11:32 PM CDT | Severe Thunderstorm Warning | OAX | Antelope, Boone, Madison, Pierce | 28 min |
| Jul 10, 11:45 PM CDT | Severe Thunderstorm Warning | OAX | Burt, Cuming | 30 min |
| Jul 10, 11:56 PM CDT | Severe Thunderstorm Warning | OAX | Cuming, Madison, Pierce, Stanton, Wayne | 34 min |
| Jul 11, 12:14 AM CDT | Severe Thunderstorm Warning | OAX | Burt, Cuming, Thurston | 31 min |
| Jul 11, 1:01 AM CDT | Special Weather Statement | OAX | Colfax, Cuming, Dodge | 44 min |
| Jul 11, 2:52 AM CDT | Areal Flood Warning | OAX | Burt, Cuming | 6 hr |
| Jul 11, 3:06 PM CDT | Heat Advisory | OAX | Gage, Jefferson, Johnson, Nemaha, Otoe, Pawnee and 1 more | 24 hr |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2017Every severe thunderstorm warning in 2017
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.