Alert archive / Texas / Tornado Warnings in 2026
Tornado Warning 21, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Apr 1, 2026, 8:08 PM CDT for Knox County, Texas. It was in force for 19 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
- Apr 1, 2026, 8:08 PM CDT (01:08 UTC)
- Expired
- Apr 1, 2026, 8:27 PM CDT
- In force
- 19 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.75 in
County Knox County, TX
The radar
The Dyess AFB radar (KDYX), 112 km from the middle of the area, began a volume at 01:11 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 1, 4:41 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 1.1 hours before the alert went out and 242 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
- 726 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1703 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted.
771
WFUS54 KOUN 020108
TOROUN
TXC275-020200-
/O.NEW.KOUN.TO.W.0021.260402T0108Z-260402T0200Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Norman OK
808 PM CDT Wed Apr 1 2026
The National Weather Service in Norman has issued a
* Tornado Warning for...
South central Knox County in northern Texas...
* Until 900 PM CDT.
* At 808 PM CDT, a severe thunderstorm capable of producing a tornado
was located near O'Brien, moving northeast at 25 mph.
HAZARD...Tornado and golf ball 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.
* Locations impacted include...
Knox City and Rhineland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a storm shelter, safe room 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 3340 9992 3351 9974 3353 9965 3340 9966
TIME...MOT...LOC 0108Z 234DEG 22KT 3338 9991
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
$$
Mahale1 follow-up statement
242 WWUS54 KOUN 020127 SVSOUN Severe Weather Statement National Weather Service Norman OK 827 PM CDT Wed Apr 1 2026 TXC275-020137- /O.CAN.KOUN.TO.W.0021.000000T0000Z-260402T0200Z/ Knox TX- 827 PM CDT Wed Apr 1 2026 ...THE TORNADO WARNING FOR SOUTH CENTRAL KNOX COUNTY IS CANCELLED... The tornado threat has diminished and the Tornado Warning has been cancelled. However, damaging winds remain likely and a Severe Thunderstorm Warning remains in effect for the area. LAT...LON 3340 9992 3351 9974 3353 9965 3340 9966 TIME...MOT...LOC 0126Z 234DEG 22KT 3345 9979 $$ Mahale
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 7:07 PM CDT | Severe Thunderstorm Warning | OUN | Wichita, Wilbarger | 53 min |
| Apr 1, 7:23 PM CDT | Severe Thunderstorm Warning | OUN | Baylor, Foard, Knox, Wilbarger | 52 min |
| Apr 1, 7:25 PM CDT | Severe Thunderstorm Warning | OUN | Wilbarger | 50 min |
| Apr 1, 7:49 PM CDT | Severe Thunderstorm Warning | OUN | Wichita, Wilbarger | 26 min |
| Apr 1, 7:56 PM CDT | Severe Thunderstorm Warning | OUN | Wichita, Wilbarger | 49 min |
| Apr 1, 7:58 PM CDT | Tornado Warning | OUN | Wichita, Wilbarger | 25 min |
| Apr 1, 8:11 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Baylor, Knox, Wichita, Wilbarger | 49 min |
| Apr 1, 8:16 PM CDT | Severe Thunderstorm Warning | OUN | Clay, Wichita | 44 min |
| Apr 1, 8:25 PM CDT | Severe Thunderstorm Warning | OUN | Foard, Knox | 28 min |
| Apr 1, 8:36 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Baylor, Foard, Knox, Wichita, Wilbarger | 39 min |
| Apr 1, 8:56 PM CDT | Special Weather Statement | OUN | Wichita | 49 min |
| Apr 1, 9:08 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Baylor, Clay, Wichita, Wilbarger | 52 min |
| Apr 1, 9:57 PM CDT | Severe Thunderstorm Warning | OUN | Clay, Wichita | 48 min |
| Apr 1, 10:59 PM CDT | Special Weather Statement | OUN | Archer, Baylor | 31 min |
| Apr 1, 11:11 PM CDT | Special Weather Statement | OUN | Clay | 34 min |
| Apr 1, 11:20 PM CDT | Severe Thunderstorm Warning | OUN | Clay | 40 min |
| Apr 1, 11:24 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Clay | 51 min |
| Apr 1, 11:43 PM CDT | Areal Flood Advisory | OUN | Archer, Clay, Wichita | 3 hr |
| Apr 1, 11:49 PM CDT | Severe Thunderstorm Warning | OUN | Clay | 27 min |
Nearby
Tornado Warnings in Texas, 2026Every tornado warning in 2026Tornadoes in 2026
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.