Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 112, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 18, 2026, 4:42 AM CDT for Choctaw County, Oklahoma. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 18, 2026, 4:42 AM CDT (09:42 UTC)
- Expired
- Apr 18, 2026, 5:30 AM CDT
- In force
- 48 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Choctaw County, OK
The radar
The Western Arkansas radar (KSRX), 178 km from the middle of the area, began a volume at 09:41 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
Norman, OK (KOUN), launched 00:00Z, 9.7 hours before the alert went out and 215 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
- 1341 J/kg
- Mixed-layer CIN
- -234 J/kg
- Mixed-layer LCL
- 762 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 319 m²/s²
- 0-3 km storm-relative helicity
- 356 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
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 Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 18, 12:27 AM CDT, 4 hours 15 minutes earlier. Its key messages:
- Updated at 1224 AM CDT Sat Apr 18 2026
- Showers and storms persist along a cold front through the overnight period before exiting Saturday morning. A few storms may be strong to severe.
- Much cooler conditions expected this weekend behind the front. Frost development possible for portions of the area Sunday morning.
- Mostly dry conditions expected through mid next week before a stronger storm system provides increasing rain and storm chances Thursday/Friday.
Area forecast discussion, Apr 18, 12:27 AM CDT, 4 hours 15 minutes before
Area Forecast Discussion National Weather Service Tulsa OK 1227 AM CDT Sat Apr 18 2026 ...New AVIATION... .KEY MESSAGES... Updated at 1224 AM CDT Sat Apr 18 2026 - Showers and storms persist along a cold front through the overnight period before exiting Saturday morning. A few storms may be strong to severe. - Much cooler conditions expected this weekend behind the front. Frost development possible for portions of the area Sunday morning. - Mostly dry conditions expected through mid next week before a stronger storm system provides increasing rain and storm chances Thursday/Friday. && .SHORT TERM... (Through Saturday) Issued at 1145 PM CDT Fri Apr 17 2026 Thunderstorms along a cold front will continue to move south and east through the remainder of E OK and NW AR through the overnight hours. Some storms may become strong to severe and produce large hail and damaging wind gusts, though the severe threat will wane with time. Localized flash flooding may also develop in locations impacted by prolonged heavy rainfall...mainly in NE OK and NW AR. Strong post-frontal north winds are occurring behind the storms tonight, and expect this to continue through the overnight hours with gusts 30-40 mph. Some gusts greater than 40 mph are possible, but should remain isolated and brief. Storms exit the area by Saturday morning, with skies clearing from north to south through the day. High temperatures will be much cooler than recently observed within the post-frontal airmass...likely remaining in the 60s. Winds remain breezy through Saturday afternoon, but will gradually decrease by the evening hours. && .LONG TERM... (Saturday Night through Friday) Issued at 1145 PM CDT Fri Apr 17 2026 Effective radiational cooling will provide a cool night Saturday night, with lows in the mid-upper 30s and lower 40s. The typically colder spots may experience some frost development, especially in NW AR. Otherwise, it will be a quiet night weather-wise. High pressure remains in place through Sunday with mostly clear skies and temperatures warming into the 70s. Southerly flow returns Monday ahead of an approaching disturbance which could bring some low shower/ thunder chances to the area Tuesday/Wednesday. However, at this time, it appears most locations will remain dry with this system. Amplified troughing moves through the intermountain west mid-week and then ejects into the plains Thursday and Friday. This will bring widespread rain and storm chances back to the region, with at least some potential for severe weather. Temperatures warm back to near/above average for the remainder of the week. && .AVIATION... (06Z TAFS) Issued at 1224 AM CDT Sat Apr 18 2026 Broken line of thunderstorms will continue to move across northwest AR and southeast OK over the next few hours with the passage of a cold front. A period of MVFR ceilings and at least brief IFR vis will accompany the front/storms with potential wind gusts in the 30-35 knot range. Overall conditions will improve with VFR conditions prevailing by sunrise. Gusty north winds through the afternoon will diminish mid to late afternoon. && .PRELIMINARY POINT TEMPS/POPS... TUL 64 41 74 48 / 0 0 0 0 FSM 66 40 74 45 / 20 0 0 0 MLC 64 38 74 43 / 10 0 0 0 BVO 64 36 74 43 / 0 0 0 0 FYV 62 35 71 42 / 20 0 0 0 BYV 60 38 69 44 / 20 0 0 0 MKO 63 38 72 44 / 10 0 0 0 MIO 61 38 70 45 / 0 0 0 0 F10 63 38 72 44 / 10 0 0 0 HHW 64 41 72 44 / 30 0 0 0 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...None. AR...None. && SHORT TERM...43 LONG TERM....43 AVIATION...14
Hazardous weather outlook, Apr 18, 4:21 AM CDT, 21 minutes before
Hazardous Weather Outlook National Weather Service Tulsa OK 421 AM CDT Sat Apr 18 2026 ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071- 073>075-154-172-176-254-272-276-354-376-190930- Benton-Carroll-Washington AR-Madison-Northern Crawford- Northern Franklin-North and Central Sebastian-Southern Crawford- Central and Southern Franklin-Southern Sebastian-Pushmataha- Choctaw-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers- Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair- Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage- Northern Sequoyah-Northern Le Flore-Northeast Osage- Central and Southern Sequoyah-Central Le Flore-Southeast Osage- Southern Le Flore- 421 AM CDT Sat Apr 18 2026 This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...Today and Tonight. THUNDERSTORMS WITH DANGEROUS LIGHTNING. RISK...Limited. AREA...Southeast Oklahoma through west central Arkansas. ONSET...Ongoing. SIGNIFICANT WINDS. RISK...Limited. AREA...Eastern Oklahoma and northwest Arkansas. ONSET...Ongoing. DISCUSSION... Isolated thunderstorms will continue through mid morning across portions of southeast Oklahoma and west central Arkansas. The showers and storms will move east of the region by late morning. Gusty northerly winds will continue today with periodic gusts of 25 to 35 mph through the day. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Spotter Activation Not Expected. .DAYS TWO THROUGH SEVEN...Sunday through Friday. SUNDAY and MONDAY...No Hazards. TUESDAY and WEDNESDAY...High Wind Potential. THURSDAY and FRIDAY...Thunderstorm and High Wind Potential. EXTENDED DISCUSSION... Southerly winds increase early next week with warmer temperatures returning to the region. Thunderstorm chances also return Thursday into Friday. weather.gov/tulsa contains additional information.
In the hours before
Special weather statement, Apr 17, 11:46 PM CDT, 4 hours 56 minutes before
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</html>Special weather statement, Apr 18, 4:30 AM CDT, 12 minutes before
Special Weather Statement
National Weather Service Tulsa OK
430 AM CDT Sat Apr 18 2026
OKZ053-181015-
Choctaw OK-
430 AM CDT Sat Apr 18 2026
...A STRONG THUNDERSTORM WILL IMPACT WESTERN CHOCTAW COUNTY THROUGH
515 AM CDT...
At 430 AM CDT, Doppler radar indicated a strong thunderstorm near
Bennington, moving east at 50 mph.
HAZARD...Wind gusts up to 50 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down small tree limbs and blow
around unsecured objects. Minor hail damage to vegetation
is possible.
Locations in or near the path include...
Boswell... Soper...
Kent... Unger...
Gay...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3392 9591 3395 9594 3412 9594 3414 9596
3415 9598 3416 9558 3394 9559 3394 9560
3393 9560 3391 9564
TIME...MOT...LOC 0930Z 267DEG 42KT 3400 9608
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPHThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 7:04 PM CDT | Tornado Warning | TSA | Osage | 26 min |
| Apr 17, 7:22 PM CDT | Tornado Warning | TSA | Osage | 23 min |
| Apr 17, 7:38 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Osage, Washington | 52 min |
| Apr 17, 7:49 PM CDT | Tornado Warning | TSA | Osage | 26 min |
| Apr 17, 8:07 PM CDT | Tornado Warning | TSA | Osage, Washington | 23 min |
| Apr 17, 8:20 PM CDT | Special Weather Statement | TSA | Nowata, Washington | 25 min |
| Apr 17, 8:41 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Pawnee | 34 min |
| Apr 17, 8:44 PM CDT | Special Weather Statement | TSA | Craig, Nowata | 31 min |
| Apr 17, 9:01 PM CDT | Special Weather Statement | TSA | Osage | 29 min |
| Apr 17, 9:13 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee, Tulsa | 47 min |
| Apr 17, 9:15 PM CDT | Special Weather Statement | TSA | Craig, Ottawa | 30 min |
| Apr 17, 9:43 PM CDT | Special Weather Statement | TSA | Ottawa | 32 min |
| Apr 17, 9:51 PM CDT | Special Weather Statement | TSA | Pawnee | 24 min |
| Apr 17, 9:58 PM CDT | Special Weather Statement | TSA | Rogers | 32 min |
| Apr 17, 10:27 PM CDT | Special Weather Statement | TSA | Mayes, Rogers | 33 min |
| Apr 17, 11:46 PM CDT | Special Weather Statement | TSA | Cherokee | 29 min |
| Apr 18, 12:09 AM CDT | Special Weather Statement | TSA | Adair, Cherokee | 36 min |
| Apr 18, 12:36 AM CDT | Special Weather Statement | TSA | Adair | 39 min |
| Apr 18, 4:30 AM CDT | Special Weather Statement | TSA | Choctaw | 45 min |
| Apr 18, 5:21 AM CDT | Special Weather Statement | TSA | Pushmataha | 39 min |
| Apr 18, 8:16 AM CDT | River Flood Warning | TSA | Ottawa | 26 hr |
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.