Alert archive / Nebraska / Tornado Warnings in 2021
Tornado Warning 1, NWS Omaha, NE
NWS Omaha, NE issued this tornado warning at May 5, 2021, 4:45 PM CDT for Cedar County, Nebraska. It was in force for 30 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, 4:45 PM CDT (21:45 UTC)
- Expired
- May 5, 2021, 5:15 PM CDT
- In force
- 30 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 1.75 in
County Cedar County, NE
The radar
The Sioux Falls radar (KFSD), 113 km from the middle of the area, began a volume at 21:45 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 12:00Z, 9.8 hours before the alert went out and 156 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.
409
WFUS53 KOAX 052145
TOROAX
NEC027-052215-
/O.NEW.KOAX.TO.W.0001.210505T2145Z-210505T2215Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Omaha/Valley Nebraska
445 PM CDT Wed May 5 2021
The National Weather Service in Omaha has issued a
* Tornado Warning for...
Eastern Cedar County in northeastern Nebraska...
* Until 515 PM CDT.
* At 444 PM CDT, a confirmed tornado was located near Hartington, or
18 miles southwest of Vermillion, moving southeast at 20 mph.
HAZARD...Damaging tornado and golf ball size hail.
SOURCE...Emergency Management confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* The tornado will be near...
Coleridge around 455 PM CDT.
Other locations impacted by this tornadic thunderstorm include Obert.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4268 9701 4267 9702 4251 9702 4249 9705
4245 9717 4263 9735 4278 9721
TIME...MOT...LOC 2144Z 317DEG 17KT 4260 9718
TORNADO...OBSERVED
HAIL...1.75IN
$$
Dergan2 follow-up statements
695
WWUS53 KOAX 052158
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
458 PM CDT Wed May 5 2021
NEC027-052215-
/O.CON.KOAX.TO.W.0001.000000T0000Z-210505T2215Z/
Cedar NE-
458 PM CDT Wed May 5 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR
SOUTHEASTERN CEDAR COUNTY...
At 457 PM CDT, a confirmed tornado was located 7 miles east
southeast of Hartington, or 18 miles southwest of Vermillion, moving
southeast at 15 mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Emergency management confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
southeastern Cedar County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4268 9701 4267 9702 4251 9702 4249 9705
4245 9717 4259 9728 4271 9716
TIME...MOT...LOC 2157Z 320DEG 15KT 4256 9715
TORNADO...OBSERVED
HAIL...1.00IN
$$
Dergan199
WWUS53 KOAX 052216
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
516 PM CDT Wed May 5 2021
NEC027-052223-
/O.EXP.KOAX.TO.W.0001.000000T0000Z-210505T2215Z/
Cedar NE-
516 PM CDT Wed May 5 2021
...THE TORNADO WARNING FOR SOUTHEASTERN CEDAR COUNTY WILL EXPIRE AT
515 PM CDT...
The storm which prompted the warning has weakened and has exited the
warned area. Emergency management watching the tornado well east of
Hartington and Coleridge indicate the tornado had dissipated.
Therefore, the warning will be allowed to expire.
LAT...LON 4268 9701 4267 9702 4251 9702 4249 9705
4245 9717 4259 9728 4271 9716
TIME...MOT...LOC 2213Z 317DEG 17KT 4251 9709
$$
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, 5:04 PM CDT | Severe Thunderstorm Warning | OAX | Saline, Seward | 41 min |
| May 5, 5:39 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Lancaster, Saline | 51 min |
| May 5, 6:18 PM CDT | Special Weather Statement | OAX | Gage | 27 min |
Nearby
Tornado Warnings in Nebraska, 2021Every tornado warning in 2021Tornadoes 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.