Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 310, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Apr 25, 2026, 8:31 PM CDT for Cleveland County, Pottawatomie County, Seminole County, Oklahoma. It was in force for 44 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 25, 2026, 8:31 PM CDT (01:31 UTC)
- Expired
- Apr 25, 2026, 9:15 PM CDT
- In force
- 44 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cleveland County, OK, Pottawatomie County, OK, Seminole County, OK
The radar
The Norman radar (KTLX), 35 km from the middle of the area, began a volume at 01:33 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
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 25, 3:52 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 1.5 hours before the alert went out and 259 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
- 3860 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1121 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 3.3
- Supercell composite
- 17.1
The text
As transmitted.
169
WUUS54 KOUN 260131
SVROUN
OKC027-125-133-260215-
/O.NEW.KOUN.SV.W.0310.260426T0131Z-260426T0215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
831 PM CDT Sat Apr 25 2026
The National Weather Service in Norman has issued a
* Severe Thunderstorm Warning for...
West central Seminole County in east central Oklahoma...
East central Cleveland County in central Oklahoma...
Central Pottawatomie County in central Oklahoma...
* Until 915 PM CDT.
* At 831 PM CDT, a severe thunderstorm was located over Tribbey,
moving northeast at 30 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.
* Locations impacted include...
Shawnee, Tecumseh, Maud, Earlsboro, Bowlegs, Tribbey, Johnson, St.
Louis, Etowah, Brooksville, Macomb, Harjo, and Trousdale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect for the warned area.
&&
LAT...LON 3502 9711 3516 9719 3541 9684 3512 9662
TIME...MOT...LOC 0131Z 241DEG 26KT 3512 9706
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
303 follow-up statements
989
WWUS54 KOUN 260144
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
844 PM CDT Sat Apr 25 2026
OKC027-260154-
/O.CAN.KOUN.SV.W.0310.000000T0000Z-260426T0215Z/
Cleveland OK-
844 PM CDT Sat Apr 25 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CLEVELAND COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3506 9699 3518 9709 3541 9684 3512 9662
TIME...MOT...LOC 0144Z 241DEG 26KT 3517 9696
$$
OKC125-133-260215-
/O.CON.KOUN.SV.W.0310.000000T0000Z-260426T0215Z/
Seminole OK-Pottawatomie OK-
844 PM CDT Sat Apr 25 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR WEST CENTRAL SEMINOLE AND CENTRAL POTTAWATOMIE COUNTIES...
At 844 PM CDT, a severe thunderstorm was located near Brooksville,
moving northeast at 30 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.
Locations impacted include...
Shawnee, Tecumseh, Maud, Earlsboro, Bowlegs, Johnson, St. Louis,
Brooksville, Macomb, and Harjo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3506 9699 3518 9709 3541 9684 3512 9662
TIME...MOT...LOC 0144Z 241DEG 26KT 3517 9696
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
30136
WWUS54 KOUN 260153
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
853 PM CDT Sat Apr 25 2026
OKC125-133-260215-
/O.CON.KOUN.SV.W.0310.000000T0000Z-260426T0215Z/
Seminole OK-Pottawatomie OK-
853 PM CDT Sat Apr 25 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR WEST CENTRAL SEMINOLE AND CENTRAL POTTAWATOMIE COUNTIES...
At 853 PM CDT, a severe thunderstorm was located 4 miles east of
Brooksville, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Tecumseh, Maud, Earlsboro, Bowlegs, St. Louis, Brooksville, and
Harjo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3508 9691 3522 9699 3535 9680 3512 9662
TIME...MOT...LOC 0153Z 241DEG 26KT 3520 9688
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
30537 WWUS54 KOUN 260211 SVSOUN Severe Weather Statement National Weather Service Norman OK 911 PM CDT Sat Apr 25 2026 OKC125-133-260221- /O.EXP.KOUN.SV.W.0310.000000T0000Z-260426T0215Z/ Seminole OK-Pottawatomie OK- 911 PM CDT Sat Apr 25 2026 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL SEMINOLE AND CENTRAL POTTAWATOMIE COUNTIES WILL EXPIRE AT 915 PM CDT... The storm which prompted the warning has weakened below severe limits, therefore the warning will be allowed to expire. However, small hail is still possible with this thunderstorm. LAT...LON 3508 9691 3522 9699 3535 9680 3512 9662 TIME...MOT...LOC 0211Z 241DEG 26KT 3526 9675 $$ 30
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 25, 5:59 PM CDT, 2 hours 32 minutes earlier. Its key messages:
- Updated at 558 PM CDT Sat Apr 25 2026
- Severe thunderstorms possible today with a risk for giant hail, damaging wind gusts, and tornadoes (potentially strong).
- Briefly drier Monday into Tuesday before additional storm chances return next week.
- Fire weather ramps up on Monday with elevated to near critical conditions.
Area forecast discussion, Apr 25, 5:59 PM CDT, 2 hours 32 minutes before
Area Forecast Discussion National Weather Service Norman OK 559 PM CDT Sat Apr 25 2026 ...New AVIATION... .KEY MESSAGES... Updated at 558 PM CDT Sat Apr 25 2026 - Severe thunderstorms possible today with a risk for giant hail, damaging wind gusts, and tornadoes (potentially strong). - Briefly drier Monday into Tuesday before additional storm chances return next week. - Fire weather ramps up on Monday with elevated to near critical conditions. && .NEAR TERM... (Rest of today and tonight) Issued at 124 PM CDT Sat Apr 25 2026 Severe storms with the potential for giant hail and tornadoes will be the main impact today. Our synoptic setup includes a weak shortwave moving across the area, a warm front pushing north into southern and central Oklahoma, and a dryline setting up in western north Texas. Abundant low level moisture (dewpoints in the 60s and 70s) will yield a very unstable environment (3000-4000 J/Kg). Meanwhile, low level shear will be enhanced along and north of the warm front with strongly backed surface flow. This morning's stratus is quickly clearing from the southwest with the progression of the warm front. Most models have storms developing along and just north of the front, stretching from near central Oklahoma into southeast Oklahoma. There are also some hints at a few storms developing off the dryline in north Texas, though forcing seems weaker there. Most likely time for initiation looks to be between 4 and 6pm. Initial storms will be discrete, with a risk for giant hail and tornadoes. The environment would favor splitting supercells. As we go into the evening, expect the low level jet to increase and storms to grow more upscale. Day && .SHORT TERM... (Sunday through Monday night) Issued at 124 PM CDT Sat Apr 25 2026 Overnight convection from Saturday night may linger into Sunday morning, mainly southeast Oklahoma, though a few models show showers expanding along the front into north central Oklahoma. Storm development Sunday afternoon appears very conditional (10-20% chance) with stout capping and a mistimed wave working against storm chances. That said, if storms do develop, strong instability and shear would support all severe hazards. Monday, fire weather returns with RH driven elevated to near critical RFTIs across much of western Oklahoma and western north Texas into parts of central Oklahoma. Winds will be 15 to 20 mph gusting to 30 mph from the west / southwest with RH values dipping into the single digits. Recent greenup will limit fire concerns in central parts of the state. Additionally, the low level thermal ridge looks to be displaced south of the highest ERCs in northwest Oklahoma. Sunday and Monday will both feature highs in the upper 70s to mid 90s with breezy south to southwest winds. Day && .LONG TERM... (Tuesday through Friday) Issued at 205 AM CDT Sat Apr 25 2026 Model spread increases mid to late week regarding the degree of moisture recovery and related storm/severe chances. The latest guidance has trended towards a more suppressed solution with much of our area remaining to the north of the deeper moisture. That said, it is not forecast to be all that far away and with westerly/southwesterly flow being maintained over the region through much of the week it would not take much of a shift back north to bring additional severe chances to the area. Regardless, models do agree on the next bigger shortwave approaching the area Friday, bringing increased precipitation chances to much of the region. Temperatures will start out near or slightly above normal Tuesday, with below normal temperatures then forecast for the remainder of the week into the weekend. Ware && .AVIATION... (00Z TAFS) Issued at 558 PM CDT Sat Apr 25 2026 Thunderstorms capable of very large hail and tornadoes will continue over south central Oklahoma and north Texas this evening, with the area of storms gradually shifting eastward. Stratus should continue to shrink and lift, though some patchy MVFR ceilings may linger over north central and central Oklahoma. Overnight, MVFR to possibly IFR ceilings will redevelop over much of the area. Winds will have some variability in direction due to a front and outflows moving through the area. Day && .PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 61 84 68 88 / 20 10 10 0 Hobart OK 57 90 62 91 / 10 10 10 0 Wichita Falls TX 62 93 70 94 / 10 10 10 0 Gage OK 51 85 55 84 / 20 20 10 0 Ponca City OK 59 77 64 84 / 60 30 20 0 Durant OK 64 87 71 91 / 60 20 20 10 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...None. TX...None. && NEAR TERM...14 SHORT TERM...14 LONG TERM....08 AVIATION...14
In the hours before
Special weather statement, Apr 25, 8:02 PM CDT, 29 minutes before
Special Weather Statement National Weather Service Norman OK 802 PM CDT Sat Apr 25 2026 OKZ028-029-260130- Cleveland OK-McClain OK- 802 PM CDT Sat Apr 25 2026 ...A strong thunderstorm will impact portions of southeastern Cleveland and south central McClain Counties through 830 PM CDT... At 802 PM CDT, Doppler radar was tracking a strong thunderstorm near Purcell, moving east at 30 mph. HAZARD...Pea size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Purcell, Slaughterville, Lexington, Wayne, and Rosedale. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. && LAT...LON 3488 9745 3506 9746 3510 9716 3489 9714 TIME...MOT...LOC 0102Z 266DEG 26KT 3498 9737 MAX HAIL SIZE...0.25 IN MAX WIND GUST...<30 MPH 30
Local storm report, Apr 25, 8:08 PM CDT, 23 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
808 PM CDT Sat Apr 25 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0806 PM Hail 2 E Elmore City 34.62N 97.37W
04/25/2026 E1.00 Inch Garvin OK Public
Report from mPING: Quarter (1.00 in.).
&&
KSLocal storm report, Apr 25, 8:09 PM CDT, 22 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
809 PM CDT Sat Apr 25 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0753 PM Tornado 5 E Pauls Valley 34.73N 97.14W
04/25/2026 Garvin OK Storm Chaser
&&
KSLocal storm report, Apr 25, 8:22 PM CDT, 9 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
822 PM CDT Sat Apr 25 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0750 PM Tornado 3 WNW Ravia 34.26N 96.80W
04/25/2026 Johnston OK Storm Chaser
Social media report with image.
&&
KSLocal storm report, Apr 25, 8:24 PM CDT, 7 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
824 PM CDT Sat Apr 25 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 PM Tornado 5 ESE Reagan 34.33N 96.63W
04/25/2026 Johnston OK Storm Chaser
Social media report.
&&
KSLocal storm report, Apr 25, 8:31 PM CDT, 0 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
831 PM CDT Sat Apr 25 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0814 PM Tornado 4 SSE Mill Creek 34.35N 96.80W
04/25/2026 Johnston OK Trained Spotter
&&
KSThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 7:19 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, Murray, Pontotoc | 26 min |
| Apr 25, 7:20 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, Grady, McClain, Stephens | 26 min |
| Apr 25, 7:21 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Coal, Pontotoc | 39 min |
| Apr 25, 7:24 PM CDT | Severe Thunderstorm Warning | OUN | Grady, Stephens | 18 min |
| Apr 25, 7:28 PM CDT | Tornado Warning | OUN | Garvin, Murray | 47 min |
| Apr 25, 7:33 PM CDT | Areal Flood Advisory | OUN | Atoka, Coal, Garvin, Grady, Hughes, Johnston and 4 more | 5 hr |
| Apr 25, 7:38 PM CDT | Tornado Warning | OUN | Johnston, Murray, Pontotoc | 52 min |
| Apr 25, 7:41 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Coal | 49 min |
| Apr 25, 7:46 PM CDT | Severe Thunderstorm Warning | OUN | Johnston | 44 min |
| Apr 25, 7:48 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, Stephens | 42 min |
| Apr 25, 7:51 PM CDT | Tornado Warning | OUN | Johnston | 39 min |
| Apr 25, 7:53 PM CDT | Flash Flood Warning | OUN | Garvin, Grady, Stephens | 3 hr |
| Apr 25, 7:53 PM CDT | Tornado Warning | OUN | Carter, Johnston, Murray | 52 min |
| Apr 25, 7:56 PM CDT | Flash Flood Warning | OUN | Murray, Pontotoc | 5 hr |
| Apr 25, 8:02 PM CDT | Special Weather Statement | OUN | McClain | 28 min |
| Apr 25, 8:09 PM CDT | Tornado Warning | OUN | Garvin, Murray, Pontotoc | 25 min |
| Apr 25, 8:12 PM CDT | Tornado Warning | OUN | Garvin | 10 min |
| Apr 25, 8:14 PM CDT | Flash Flood Warning | OUN | Garvin, Murray | 3 hr |
| Apr 25, 8:16 PM CDT | Tornado Warning | OUN | Johnston | 44 min |
| Apr 25, 8:21 PM CDT | Areal Flood Advisory | OUN | Atoka, Bryan, Coal, Johnston, Murray | 3 hr |
| Apr 25, 8:22 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Coal, Johnston | 38 min |
| Apr 25, 8:23 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, Murray | 52 min |
| Apr 25, 8:31 PM CDT | Tornado Warning | OUN | Atoka, Bryan, Johnston | 24 min |
| Apr 25, 8:51 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan, Johnston | 54 min |
| Apr 25, 8:58 PM CDT | Flash Flood Warning | OUN | Atoka, Johnston | 5 hr |
| Apr 25, 9:26 PM CDT | Special Weather Statement | OUN | Jefferson | 34 min |
| Apr 25, 9:36 PM CDT | Areal Flood Advisory | OUN | Atoka, Bryan | 3 hr |
| Apr 25, 9:38 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan | 52 min |
| Apr 25, 10:07 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Coal, Johnston | 38 min |
| Apr 25, 10:20 PM CDT | Flash Flood Warning | OUN | Atoka, Bryan | 3 hr |
| Apr 25, 10:25 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan | 20 min |
| Apr 26, 12:14 AM CDT | Special Weather Statement | OUN | Stephens | 31 min |
| Apr 26, 1:00 AM CDT | Special Weather Statement | OUN | Carter | 30 min |
| Apr 26, 2:11 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Love | 38 min |
| Apr 26, 2:13 AM CDT | Special Weather Statement | OUN | Garvin | 32 min |
| Apr 26, 2:18 AM CDT | Special Weather Statement | OUN | Love | 27 min |
| Apr 26, 2:36 AM CDT | Severe Thunderstorm Warning | OUN | Carter | 24 min |
| Apr 26, 2:54 AM CDT | Special Weather Statement | OUN | Love | 36 min |
| Apr 26, 3:00 AM CDT | Severe Thunderstorm Warning | OUN | Love | 30 min |
| Apr 26, 3:02 AM CDT | Special Weather Statement | OUN | Carter | 28 min |
| Apr 26, 3:55 AM CDT | Areal Flood Advisory | OUN | Carter | 2 hr |
| Apr 26, 7:01 AM CDT | River Flood Advisory | OUN | Atoka | 30 hr |
| Apr 26, 7:57 AM CDT | Special Weather Statement | OUN | Payne | 33 min |
| Apr 26, 4:54 PM CDT | Severe Thunderstorm Warning | OUN | Tillman | 51 min |
| Apr 26, 5:24 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Tillman | 51 min |
| Apr 26, 5:36 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 39 min |
| Apr 26, 5:56 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Grady, Stephens | 49 min |
| Apr 26, 6:14 PM CDT | Tornado Warning | OUN | Cotton | 46 min |
| Apr 26, 6:31 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Comanche, Grady, McClain, Stephens | 29 min |
| Apr 26, 6:42 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Stephens | 19 min |
| Apr 26, 6:58 PM CDT | Special Weather Statement | OUN | Kay | 32 min |
| Apr 26, 6:59 PM CDT | Severe Thunderstorm Warning | OUN | Cotton, Jefferson | 46 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2026Every severe thunderstorm warning 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.