Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 23, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at May 5, 2021, 5:39 PM CDT for Gage County, Lancaster County, Saline County, Nebraska. It was in force for 51 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
- May 5, 2021, 5:39 PM CDT (22:39 UTC)
- Expired
- May 5, 2021, 6:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Gage County, NE, Lancaster County, NE, Saline County, NE
The radar
The Omaha radar (KOAX), 94 km from the middle of the area, began a volume at 22:41 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 nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 10.7 hours before the alert went out and 94 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2603 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
137
WUUS53 KOAX 052239
SVROAX
NEC067-109-151-052330-
/O.NEW.KOAX.SV.W.0023.210505T2239Z-210505T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Omaha/Valley Nebraska
539 PM CDT Wed May 5 2021
The National Weather Service in Omaha has issued a
* Severe Thunderstorm Warning for...
Southwestern Lancaster County in southeastern Nebraska...
Northeastern Saline County in southeastern Nebraska...
Northwestern Gage County in southeastern Nebraska...
* Until 630 PM CDT.
* At 538 PM CDT, a severe thunderstorm was located over Crete, or 20
miles southwest of Lincoln, moving southeast at 25 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations impacted include...
Crete, Wilber, Hickman, De Witt, Cortland, Clatonia, Hallam, Roca,
Sprague, Stagecoach State Recreation Area, Walnut Creek Recreation
Area, Olive Creek State Recreation Area and Bluestem State
Recreation Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4055 9717 4070 9699 4070 9691 4071 9691
4067 9657 4044 9669 4035 9690
TIME...MOT...LOC 2238Z 301DEG 22KT 4061 9698
HAIL...1.50IN
WIND...60MPH
$$
Dergan2 follow-up statements
601
WWUS53 KOAX 052310
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
610 PM CDT Wed May 5 2021
NEC151-052320-
/O.CAN.KOAX.SV.W.0023.000000T0000Z-210505T2330Z/
Saline NE-
610 PM CDT Wed May 5 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SALINE COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4036 9692 4051 9691 4062 9677 4062 9660
4044 9669 4035 9690
TIME...MOT...LOC 2310Z 299DEG 22KT 4052 9676
$$
NEC067-109-052330-
/O.CON.KOAX.SV.W.0023.000000T0000Z-210505T2330Z/
Lancaster NE-Gage NE-
610 PM CDT Wed May 5 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR SOUTH CENTRAL LANCASTER AND NORTHWESTERN GAGE COUNTIES...
At 610 PM CDT, a severe thunderstorm was located over Hallam, or 17
miles north of Beatrice, moving southeast at 25 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Hickman, De Witt, Cortland, Clatonia, Hallam and Stagecoach State
Recreation Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4036 9692 4051 9691 4062 9677 4062 9660
4044 9669 4035 9690
TIME...MOT...LOC 2310Z 299DEG 22KT 4052 9676
HAIL...1.50IN
WIND...60MPH
$$
Dergan752
WWUS53 KOAX 052321
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
621 PM CDT Wed May 5 2021
NEC067-109-052330-
/O.EXP.KOAX.SV.W.0023.000000T0000Z-210505T2330Z/
Lancaster NE-Gage NE-
621 PM CDT Wed May 5 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL LANCASTER AND
NORTHWESTERN GAGE COUNTIES WILL EXPIRE AT 630 PM CDT...
The storm which prompted the warning has weakened and has exited the
warned area. Therefore, the warning will be allowed to expire.
However gusty winds are still possible in the wake of this
thunderstorm.
LAT...LON 4036 9692 4051 9691 4062 9677 4062 9660
4044 9669 4035 9690
TIME...MOT...LOC 2320Z 301DEG 22KT 4050 9671
$$
DerganThe office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 3:33 PM CDT | Severe Thunderstorm Warning | OAX | Madison | 42 min |
| May 5, 3:47 PM CDT | Severe Thunderstorm Warning | OAX | Cedar | 43 min |
| May 5, 4:14 PM CDT | Severe Thunderstorm Warning | OAX | Madison, Platte, Stanton | 46 min |
| May 5, 4:22 PM CDT | Special Weather Statement | OAX | Seward | 53 min |
| May 5, 4:45 PM CDT | Tornado Warning | OAX | Cedar | 30 min |
| May 5, 5:04 PM CDT | Severe Thunderstorm Warning | OAX | Saline, Seward | 41 min |
| May 5, 6:18 PM CDT | Special Weather Statement | OAX | Gage | 27 min |
Nearby
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.