Alert archive / Nebraska / Tornado Warnings in 2021
Tornado Warning 21, NWS Omaha, NE
NWS Omaha, NE issued this tornado warning at Dec 15, 2021, 4:11 PM CST for Nemaha County, Pawnee County, Richardson County, Nebraska. It was in force for 34 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Dec 15, 2021, 4:11 PM CST (22:11 UTC)
- Expired
- Dec 15, 2021, 4:45 PM CST
- In force
- 34 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Nemaha County, NE, Pawnee County, NE, Richardson County, NE
The radar
The Omaha radar (KOAX), 127 km from the middle of the area, began a volume at 22:15 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 15, 4:26 PM CST | TSTM WND GST 56 | 4 Nw Stella, NE | MESONET STATION UP941 4.1 NW STELLA (UPR). |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 15, 1:23 PM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 10.2 hours before the alert went out and 127 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
- 2165 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 346 m²/s²
- 0-3 km storm-relative helicity
- 384 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
674
WFUS53 KOAX 152211
TOROAX
NEC127-133-147-152245-
/O.NEW.KOAX.TO.W.0021.211215T2211Z-211215T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Omaha/Valley Nebraska
411 PM CST Wed Dec 15 2021
The National Weather Service in Omaha has issued a
* Tornado Warning for...
Southeastern Nemaha County in southeastern Nebraska...
Western Richardson County in southeastern Nebraska...
Southeastern Pawnee County in southeastern Nebraska...
* Until 445 PM CST.
* At 411 PM CST, a severe thunderstorm capable of producing a tornado
was located 6 miles southeast of Pawnee City, or 16 miles north of
Seneca, moving northeast at 70 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
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 dangerous storm will be near...
Humboldt around 420 PM CST.
Stella and Shubert around 430 PM CST.
Other locations impacted by this tornadic thunderstorm include
Dawson, Brownville State Recreation Area, Du Bois, 7 Miles South Of
Auburn, Nemaha, Brownville and Camp Cornhusker.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 4008 9620 4047 9570 4046 9567 4046 9564
4042 9566 4034 9562 4031 9566 4029 9555
4026 9556 4000 9597 4000 9610
TIME...MOT...LOC 2211Z 226DEG 61KT 4007 9605
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
BLB2 follow-up statements
721
WWUS53 KOAX 152227
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
427 PM CST Wed Dec 15 2021
NEC133-152236-
/O.CAN.KOAX.TO.W.0021.000000T0000Z-211215T2245Z/
Pawnee NE-
427 PM CST Wed Dec 15 2021
...THE TORNADO WARNING FOR SOUTHEASTERN PAWNEE COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 800 PM CST for southeastern
Nebraska.
LAT...LON 4007 9601 4016 9594 4029 9588 4047 9570
4046 9567 4046 9564 4042 9566 4034 9562
4031 9566 4029 9555 4026 9556 4000 9597
4000 9601
TIME...MOT...LOC 2226Z 229DEG 62KT 4024 9577
$$
NEC127-147-152245-
/O.CON.KOAX.TO.W.0021.000000T0000Z-211215T2245Z/
Nemaha NE-Richardson NE-
427 PM CST Wed Dec 15 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CST FOR
SOUTHEASTERN NEMAHA AND WESTERN RICHARDSON COUNTIES...
At 426 PM CST, a severe thunderstorm capable of producing a tornado
was located over Stella, or 14 miles northwest of Falls City, moving
northeast at 70 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
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 Nemaha and western Richardson Counties, including the
following locations... Dawson, Nemaha, Brownville, Brownville State
Recreation Area, 7 Miles South Of Auburn and Camp Cornhusker.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 4007 9601 4016 9594 4029 9588 4047 9570
4046 9567 4046 9564 4042 9566 4034 9562
4031 9566 4029 9555 4026 9556 4000 9597
4000 9601
TIME...MOT...LOC 2226Z 229DEG 62KT 4024 9577
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
BLB612
WWUS53 KOAX 152237
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
437 PM CST Wed Dec 15 2021
NEC127-147-152247-
/O.EXP.KOAX.TO.W.0021.000000T0000Z-211215T2245Z/
Nemaha NE-Richardson NE-
437 PM CST Wed Dec 15 2021
...THE TORNADO WARNING FOR SOUTHEASTERN NEMAHA AND WESTERN RICHARDSON
COUNTIES WILL EXPIRE AT 445 PM CST...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 800 PM CST for southeastern
Nebraska.
Remember, a Severe Thunderstorm Warning still remains in effect.
LAT...LON 4007 9601 4016 9594 4029 9588 4047 9570
4046 9567 4046 9564 4042 9566 4034 9562
4031 9566 4029 9555 4026 9556 4000 9597
4000 9601
TIME...MOT...LOC 2237Z 226DEG 61KT 4036 9561
$$
BLBThe office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 2:19 PM CST | Severe Thunderstorm Warning | OAX | Antelope, Boone, Butler, Colfax, Madison, Pierce and 2 more | 56 min |
| Dec 15, 2:26 PM CST | Severe Thunderstorm Warning | OAX | Butler, Gage, Jefferson, Lancaster, Saline, Saunders and 1 more | 64 min |
| Dec 15, 2:39 PM CST | Tornado Warning | OAX | Boone, Madison, Platte, Stanton | 24 min |
| Dec 15, 2:50 PM CST | Tornado Warning | OAX | Colfax, Platte | 40 min |
| Dec 15, 2:54 PM CST | Severe Thunderstorm Warning | OAX | Cass, Dodge, Douglas, Gage, Johnson, Lancaster and 5 more | 81 min |
| Dec 15, 2:59 PM CST | Tornado Warning | OAX | Butler, Colfax, Dodge, Platte | 31 min |
| Dec 15, 3:06 PM CST | Tornado Warning | OAX | Madison, Platte, Stanton | 24 min |
| Dec 15, 3:09 PM CST | Severe Thunderstorm Warning | OAX | Burt, Butler, Colfax, Cuming, Dodge, Saunders and 4 more | 51 min |
| Dec 15, 3:13 PM CST | Severe Thunderstorm Warning | OAX | Antelope, Cedar, Colfax, Knox, Madison, Pierce and 3 more | 62 min |
| Dec 15, 3:23 PM CST | Tornado Warning | OAX | Lancaster, Seward | 16 min |
| Dec 15, 3:25 PM CST | Tornado Warning | OAX | Colfax, Cuming, Stanton | 35 min |
| Dec 15, 3:29 PM CST | Tornado Warning | OAX | Madison, Stanton, Wayne | 31 min |
| Dec 15, 3:35 PM CST | Severe Thunderstorm Warning | OAX | Cass, Douglas, Johnson, Nemaha, Otoe, Pawnee and 3 more | 70 min |
| Dec 15, 3:41 PM CST | Severe Thunderstorm Warning | OAX | Burt, Cuming, Thurston, Washington | 64 min |
| Dec 15, 3:45 PM CST | Tornado Warning | OAX | Douglas, Saunders | 30 min |
| Dec 15, 3:45 PM CST | Tornado Warning | OAX | Cuming, Thurston | 45 min |
| Dec 15, 3:54 PM CST | Tornado Warning | OAX | Dodge, Douglas, Washington | 28 min |
| Dec 15, 4:01 PM CST | Tornado Warning | OAX | Cass, Otoe | 14 min |
| Dec 15, 4:12 PM CST | Tornado Warning | OAX | Cass | 33 min |
| Dec 15, 4:16 PM CST | Tornado Warning | OAX | Washington | 17 min |
| Dec 15, 5:08 PM CST | Blowing Dust Advisory | OAX | Cass, Gage, Jefferson, Johnson, Lancaster, Nemaha and 5 more | 4 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.