Alert archive / Nebraska / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 172, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Jun 24, 2018, 3:04 PM CDT for Colfax County, Nebraska. It was in force for 26 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, 2018, 3:04 PM CDT (20:04 UTC)
- Expired
- Jun 24, 2018, 3:30 PM CDT
- In force
- 26 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Colfax County, NE
The radar
The Omaha radar (KOAX), 66 km from the middle of the area, began a volume at 20:05 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 12:00Z, 8.1 hours before the alert went out and 66 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
- 824 J/kg
- Mixed-layer CIN
- -153 J/kg
- Mixed-layer LCL
- 1390 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
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 24, 12:43 PM CDT, 2 hours 21 minutes earlier.
Area forecast discussion, Jun 24, 12:43 PM CDT, 2 hours 21 minutes before
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</html>Hazardous weather outlook, Jun 24, 11:06 AM CDT, 3 hours 58 minutes before
Hazardous Weather Outlook National Weather Service Omaha/Valley NE 1106 AM CDT Sun Jun 24 2018 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-250615- 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- 1106 AM CDT Sun Jun 24 2018 This Hazardous Weather Outlook is for portions of southwest Iowa...west central Iowa...east central Nebraska...northeast Nebraska and southeast Nebraska. .DAY ONE...This Afternoon and Tonight There is a chance of severe storms developing over most of eastern Nebraska and southwest Iowa late this afternoon and tonight. The main hazards should be damaging winds and large hail, along with a very small chance for a tornado or two. Storms will also be capable of producing very heavy rain, which could lead to flooding. Minor river flooding will continue along the Missouri River from Brownville downstream to Rulo. .DAYS TWO THROUGH SEVEN...Monday through Saturday Thunderstorms with heavy rain will be possible over most of the area Monday into Monday night. Some storms could be severe, with hail and strong winds, especially across western Iowa. A few storms could occur Tuesday into Tuesday night. The chance of severe storms looks fairly low, but a few could approach severe limits in southwest Iowa. Additional thunderstorms are possible by Friday night into Saturday. Minor river flooding is forecast to continue along the Missouri River from Brownville to Rulo through the period. Flooding may develop farther north by mid week, from around Plattsmouth to Nebraska City. .SPOTTER INFORMATION STATEMENT... Storm spotter activation may be needed today, especially from mid afternoon into the evening.
In the hours before
Special weather statement, Jun 24, 2:56 PM CDT, 8 minutes before
Special Weather Statement
National Weather Service Omaha/Valley Nebraska
256 PM CDT SUN JUN 24 2018
NEZ043-242030-
Colfax NE-
256 PM CDT SUN JUN 24 2018
...SIGNIFICANT WEATHER ADVISORY FOR WESTERN COLFAX COUNTY UNTIL 330
PM CDT...
At 255 PM CDT, Doppler radar was tracking a strong thunderstorm 5
miles southeast of Leigh, or 16 miles northeast of Columbus, moving
northeast at 20 mph.
Dime size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Clarkson, Richland, and Camp Luther.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4174 9716 4174 9711 4156 9703 4140 9719
4142 9725 4164 9725
TIME...MOT...LOC 1955Z 216DEG 16KT 4164 9719
BLBThe office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 7:28 PM CDT | Severe Thunderstorm Warning | OAX | Colfax, Cuming, Dodge | 47 min |
| Jun 23, 10:10 PM CDT | Severe Thunderstorm Warning | OAX | Colfax, Madison, Platte, Stanton | 35 min |
| Jun 24, 1:27 AM CDT | Special Weather Statement | OAX | Lancaster | 33 min |
| Jun 24, 2:56 PM CDT | Special Weather Statement | OAX | Colfax | 34 min |
| Jun 24, 4:45 PM CDT | Special Weather Statement | OAX | Madison | 30 min |
| Jun 24, 4:48 PM CDT | Severe Thunderstorm Warning | OAX | Madison, Pierce, Stanton, Wayne | 27 min |
| Jun 24, 6:03 PM CDT | Special Weather Statement | OAX | Sarpy | 27 min |
| Jun 24, 6:56 PM CDT | Severe Thunderstorm Warning | OAX | Colfax, Dodge | 34 min |
| Jun 24, 12:34 AM CDT | Special Weather Statement | OAX | Monona | 26 min |
| Jun 24, 4:52 PM CDT | Special Weather Statement | OAX | Page | 38 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2018Every severe thunderstorm warning in 2018
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.