Alert archive / Nebraska / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 166, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Jun 24, 2023, 12:32 AM CDT for Knox County, Nebraska. It was in force for 11 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
- Jun 24, 2023, 12:32 AM CDT (05:32 UTC)
- Expired
- Jun 24, 2023, 12:43 AM CDT
- In force
- 11 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Knox County, NE
The radar
The Sioux Falls radar (KFSD), 142 km from the middle of the area, began a volume at 05:35 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 |
|---|---|---|---|
| Jun 23, 10:38 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 5.5 hours before the alert went out and 193 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
- 579 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1770 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
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 Jun 23, 11:42 PM CDT, 50 minutes earlier.
Area forecast discussion, Jun 23, 11:42 PM CDT, 50 minutes before
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Local storm report, Jun 23, 7:09 PM CDT, 5 hours 23 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 |
|---|---|---|---|---|
| Jun 23, 7:10 PM CDT | Severe Thunderstorm Warning | OAX | Cedar | 35 min |
| Jun 23, 9:58 PM CDT | Special Weather Statement | OAX | Pierce | 32 min |
| Jun 23, 10:09 PM CDT | Severe Thunderstorm Warning | OAX | Antelope, Pierce | 32 min |
| Jun 23, 10:37 PM CDT | Severe Thunderstorm Warning | OAX | Antelope, Knox | 38 min |
| Jun 23, 11:14 PM CDT | Severe Thunderstorm Warning | OAX | Antelope, Knox | 31 min |
| Jun 24, 12:04 AM CDT | Severe Thunderstorm Warning | OAX | Knox | 26 min |
| Jun 24, 12:27 AM CDT | Severe Thunderstorm Warning | OAX | Knox | 13 min |
| Jun 24, 2:43 AM CDT | Special Weather Statement | OAX | Antelope, Boone, Knox, Madison, Pierce | 32 min |
| Jun 24, 2:45 AM CDT | Severe Thunderstorm Warning | OAX | Antelope, Boone, Madison, Pierce, Platte, Stanton | 45 min |
| Jun 24, 2:52 AM CDT | Severe Thunderstorm Warning | OAX | Antelope, Cedar, Knox, Pierce | 53 min |
| Jun 24, 3:21 AM CDT | Severe Thunderstorm Warning | OAX | Antelope, Boone, Cedar, Madison, Pierce, Platte and 1 more | 39 min |
| Jun 24, 3:28 AM CDT | Severe Thunderstorm Warning | OAX | Cedar, Knox, Pierce, Wayne | 47 min |
| Jun 24, 3:43 AM CDT | Severe Thunderstorm Warning | OAX | Antelope, Boone, Butler, Colfax, Madison, Platte and 1 more | 47 min |
| Jun 24, 3:50 AM CDT | Severe Thunderstorm Warning | OAX | Cedar, Pierce, Wayne | 40 min |
| Jun 24, 4:17 AM CDT | Special Weather Statement | OAX | Butler, Colfax, Platte | 43 min |
| Jun 24, 5:56 AM CDT | Special Weather Statement | OAX | Washington | 34 min |
| Jun 24, 4:20 PM CDT | Severe Thunderstorm Warning | OAX | Knox | 25 min |
| Jun 24, 4:26 PM CDT | River Flood Warning | OAX | Knox | 21 hr |
| Jun 24, 4:41 PM CDT | Severe Thunderstorm Warning | OAX | Cedar, Knox | 49 min |
| Jun 24, 5:26 PM CDT | Severe Thunderstorm Warning | OAX | Cedar, Knox | 49 min |
| Jun 24, 6:21 AM CDT | Special Weather Statement | OAX | Harrison, Monona | 24 min |
| Jun 24, 6:38 AM CDT | Special Weather Statement | OAX | Shelby | 37 min |
| Jun 24, 5:04 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 26 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2023Every severe thunderstorm warning in 2023
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.