Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 166, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Aug 27, 2021, 7:08 PM CDT for Washington County, Nebraska. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 27, 2021, 7:08 PM CDT (00:08 UTC)
- Expired
- Aug 27, 2021, 7:40 PM CDT
- In force
- 32 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Washington County, NE
The radar
The Omaha radar (KOAX), 32 km from the middle of the area, began a volume at 00:11 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
Topeka, KS (KTOP), launched 00:00Z, 0.1 hours before the alert went out and 289 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
- 1919 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1671 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
783
WUUS53 KOAX 280008
SVROAX
NEC177-280100-
/O.NEW.KOAX.SV.W.0166.210828T0008Z-210828T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Omaha/Valley Nebraska
708 PM CDT Fri Aug 27 2021
The National Weather Service in Omaha has issued a
* Severe Thunderstorm Warning for...
Central Washington County in east central Nebraska...
* Until 800 PM CDT.
* At 707 PM CDT, a severe thunderstorm was located near Kennard, or
20 miles northwest of Omaha, moving north at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Blair around 725 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4145 9614 4149 9637 4167 9629 4167 9613
4163 9611 4161 9612 4158 9609
TIME...MOT...LOC 0007Z 199DEG 21KT 4150 9627
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Dergan1 follow-up statement
247
WWUS53 KOAX 280040
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
740 PM CDT Fri Aug 27 2021
NEC177-280049-
/O.CAN.KOAX.SV.W.0166.000000T0000Z-210828T0100Z/
Washington NE-
740 PM CDT Fri Aug 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WASHINGTON COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened and no longer
poses an immediate threat to life or property. Therefore, the
warning has been cancelled. However, small hail, gusty winds and
brief moderate rain are still possible with this thunderstorm as it
drifts into northeast Washington county, generally north and
northwest of Blair.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Omaha.
LAT...LON 4145 9614 4149 9637 4167 9629 4167 9613
4163 9611 4161 9612 4158 9609
TIME...MOT...LOC 0036Z 199DEG 21KT 4168 9619
$$
DerganNearby
Severe Thunderstorm Warnings in Nebraska, 2021Every severe thunderstorm warning in 2021
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.