Alert archive / Oklahoma / Tornado Warnings in 2026
Tornado Warning 43, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Apr 26, 2026, 8:41 PM CDT for Osage County, Oklahoma. It was in force for 64 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
- Apr 26, 2026, 8:41 PM CDT (01:41 UTC)
- Expired
- Apr 26, 2026, 9:45 PM CDT
- In force
- 64 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.5 in
County Osage County, OK
The radar
The Tulsa radar (KINX), 95 km from the middle of the area, began a volume at 01:40 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 |
|---|---|---|---|
| Apr 26, 9:05 PM CDT | TORNADO | 4 Sw Bigheart, OK | Tornado on the ground for approximately 4 minutes...crossed Highway 99 north of U.S. Highway 60. Location based on Radar data. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this tornado warning; the first came 24 minutes after it went out.
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 26, 5:15 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.7 hours before the alert went out and 210 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
- 1115 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 1306 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 7.1
The text
As transmitted.
892
WFUS54 KTSA 270141
TORTSA
OKC113-270245-
/O.NEW.KTSA.TO.W.0043.260427T0141Z-260427T0245Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
841 PM CDT Sun Apr 26 2026
The National Weather Service in Tulsa has issued a
* Tornado Warning for...
Northeastern Osage County in northeastern Oklahoma...
* Until 945 PM CDT.
* At 840 PM CDT, a severe thunderstorm with strong low level rotation
that could produce a tornado at any time was located 6 miles east
of Pearsonia, moving east at 20 mph.
HAZARD...Tornado and ping pong 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 in or near the path include...
Bartlesville... Bigheart...
Hulah... Sunset Lake...
Bartlesville Municipal Airport... Wah Sha She State Park...
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.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3699 9600 3672 9600 3678 9642 3695 9639
TIME...MOT...LOC 0140Z 273DEG 17KT 3684 9635
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
$$4 follow-up statements
790
WWUS54 KTSA 270159
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
859 PM CDT Sun Apr 26 2026
OKC113-270245-
/O.CON.KTSA.TO.W.0043.000000T0000Z-260427T0245Z/
Osage OK-
859 PM CDT Sun Apr 26 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
NORTHEASTERN OSAGE COUNTY...
At 859 PM CDT, a severe thunderstorm with strong low level rotation
that could produce a tornado at any time was located near Sunset
Lake, moving east at 20 mph.
HAZARD...Tornado and half dollar size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations in or near the path include...
Bartlesville... Bigheart...
Hulah... Sunset Lake...
Bartlesville Municipal Airport... Wah Sha She State Park...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3699 9600 3672 9600 3677 9635 3696 9628
TIME...MOT...LOC 0159Z 275DEG 16KT 3681 9627
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
$$818
WWUS54 KTSA 270209
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
909 PM CDT Sun Apr 26 2026
OKC113-270245-
/O.CON.KTSA.TO.W.0043.000000T0000Z-260427T0245Z/
Osage OK-
909 PM CDT Sun Apr 26 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
NORTHEASTERN OSAGE COUNTY...
At 908 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Sunset Lake, moving east at 20 mph.
HAZARD...Tornado and half dollar 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 in or near the path include...
Bartlesville... Bigheart...
Hulah... Sunset Lake...
Bartlesville Municipal Airport... Wah Sha She State Park...
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 3694 9600 3672 9600 3676 9630 3690 9627
TIME...MOT...LOC 0208Z 273DEG 17KT 3681 9621
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
$$849
WWUS54 KTSA 270224
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
924 PM CDT Sun Apr 26 2026
OKC113-270245-
/O.CON.KTSA.TO.W.0043.000000T0000Z-260427T0245Z/
Osage OK-
924 PM CDT Sun Apr 26 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
NORTHEASTERN OSAGE COUNTY...
At 924 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles north of Osage Hills State Park, moving east at
15 mph.
HAZARD...Tornado and half dollar size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations in or near the path include...
Bartlesville... Bartlesville Municipal Airport...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3690 9600 3672 9600 3677 9624 3689 9614
TIME...MOT...LOC 0224Z 274DEG 13KT 3680 9615
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
$$748 WWUS54 KTSA 270240 SVSTSA Severe Weather Statement National Weather Service Tulsa OK 940 PM CDT Sun Apr 26 2026 OKC113-270250- /O.EXP.KTSA.TO.W.0043.000000T0000Z-260427T0245Z/ Osage OK- 940 PM CDT Sun Apr 26 2026 ...THE TORNADO WARNING FOR NORTHEASTERN OSAGE COUNTY WILL EXPIRE AT 945 PM CDT... The storm which prompted the warning has weakened below severe limits, and no longer appears capable of producing a tornado. Therefore, the warning will be allowed to expire. However, small hail to nickel size is still possible with this thunderstorm. A Tornado Watch remains in effect until midnight CDT for northeastern Oklahoma. && LAT...LON 3690 9600 3672 9600 3677 9624 3689 9614 TIME...MOT...LOC 0240Z 272DEG 20KT 3681 9608 $$
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Apr 26, 6:26 PM CDT, 2 hours 15 minutes earlier. Its key messages:
- Issued at 1244 PM CDT Sun Apr 26 2026
- Severe storms are possible this afternoon through early tonight, however confidence remains low in overall storm coverage.
- Thunderstorm and severe weather chances linger into Monday and Tuesday across eastern areas.
- After a break from active weather on Wednesday, rain and low thunderstorm chances return late week. Severe potential appears low at this time.
Area forecast discussion, Apr 26, 6:26 PM CDT, 2 hours 15 minutes before
Area Forecast Discussion National Weather Service Tulsa OK 626 PM CDT Sun Apr 26 2026 ...New AVIATION... .KEY MESSAGES... Issued at 1244 PM CDT Sun Apr 26 2026 - Severe storms are possible this afternoon through early tonight, however confidence remains low in overall storm coverage. - Thunderstorm and severe weather chances linger into Monday and Tuesday across eastern areas. - After a break from active weather on Wednesday, rain and low thunderstorm chances return late week. Severe potential appears low at this time. && .SHORT TERM... (Through tonight ) Issued at 1244 PM CDT Sun Apr 26 2026 A mid level trough gradually ejects from the Rockies today, while a warm front lifts north and moisture advection continues at the surface east of a dryline and sfc low in Western/Central OK. The eastern end of the warm front will likely struggle with its northward advance, and the front is expected to end up draped across our area this afternoon and evening, oriented NW to SE. This maintains widespread 60+ dewpoints, with pockets of 70+ possible this evening, and results in an increasingly unstable airmass across the warm sector. With steep lapse rates and increasing wind shear, the environment will certainly be supportive of severe weather and any storm that develops and takes advantage will likely become severe. All severe hazards will be possible this afternoon into tonight, including large to very large hail, damaging wind gusts, and tornadoes (particularly if sfc-based storms are present in the evening). With that said, storm coverage remains uncertain, and overall storm chances remain fairly low... only between 20 and 40 percent this afternoon through tonight. Warm advection storms will be possible north of the front with additional isolated storms possible across the remainder of the area as inhibition decreases, with preference along the dryline/triple point. The environment will continue to support severe weather into the overnight period, however, thunderstorm and severe chances should generally trend downward by late overnight/early morning. Overall, it remains to be seen how many storms will develop to take advantage of the environment today, but it is a day to remain weather aware and appreciate the potential. && .LONG TERM... (Monday through Sunday) Issued at 1244 PM CDT Sun Apr 26 2026 Additional thunderstorm development will be possible along and ahead of an advancing dryline/frontal boundary Monday afternoon/early evening, some of which may be severe. Based on the latest timing expectations, this places far E OK and NW AR in the greater risk for severe weather. Large hail and damaging wind gusts are the primary concerns Monday. The front is expected to stall in the vicinity of western Arkansas and SE OK Monday night into Tuesday as another shortwave moves across the region. This results in yet another day of severe weather potential, particularly along and south of I-40 in E OK and into W-Central and NW AR during the afternoon and evening. The cold front will eventually move south of the local area Tuesday night, with high pressure providing a break from the active weather pattern on Wednesday. Precip chances increase late week as another shortwave passes overhead and an upper low moves east out of the Desert SW. Instability during this period continues to look fairly weak, so thunder chances remain much lower through the end of the week with no severe weather expected. Quiet weather is possible Sunday with another period of high pressure. && .AVIATION... (00Z TAFS) Issued at 625 PM CDT Sun Apr 26 2026 VFR conditions will prevail into the evening. The main concern in the near term will be scattered storm potential across NE OK over the next several hours. Used PROB30s to cover potential. Another round of storms is expected later tonight from the west, mainly across NE OK. Storm chances greatest at KBVO, a bit lower at KTUL/KRVS. Kept TEMPO mention at KBVO and PROB30 mentions at KTUL/KRVS for the overnight storms. Storm chances/coverage too uncertain to mention storms at the SE OK and NW AR TAF sites at this time. MVFR cigs are expected to overspread the region from the south late tonight and will persist into Monday morning. Skies will clear from west to east with a front during the day. Storm chances Monday afternoon should be east of the TAF sites. Lacy && .PRELIMINARY POINT TEMPS/POPS... TUL 69 89 55 74 / 40 10 10 40 FSM 68 87 64 82 / 30 30 30 70 MLC 71 89 63 80 / 20 20 20 60 BVO 65 86 49 72 / 40 10 0 20 FYV 66 84 57 78 / 40 40 30 80 BYV 66 83 55 79 / 30 40 30 80 MKO 69 87 58 76 / 30 20 10 60 MIO 67 84 51 72 / 40 20 10 50 F10 69 87 57 76 / 20 10 10 50 HHW 69 87 66 80 / 20 20 20 60 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...None. AR...None. && SHORT TERM...43 LONG TERM....43 AVIATION...30
Hazardous weather outlook, Apr 26, 5:28 PM CDT, 3 hours 13 minutes before
Hazardous Weather Outlook National Weather Service Tulsa OK 528 PM CDT Sun Apr 26 2026 ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071- 073>075-154-172-176-254-272-276-354-376-272230- 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- 528 PM CDT Sun Apr 26 2026 ...HIGHER END SEVERE POTENTIAL THIS AFTERNOON INTO THE OVERNIGHT... This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...This Afternoon and Tonight. TORNADO. RISK...Elevated to near Significant. AREA...Mainly Northeast Oklahoma. Some risk Northwest Arkansas and Southeast Oklahoma. ONSET...Late this afternoon. SEVERE THUNDERSTORM. RISK...Elevated to near Significant. AREA...Mainly Northeast Oklahoma. Some risk Northwest Arkansas and Southeast Oklahoma. ONSET...Late this afternoon. DISCUSSION... Thunderstorm coverage is expected to increase by late this afternoon across northeast Oklahoma. Multiple rounds of storms are expected across northeast Oklahoma from late this afternoon into the overnight hours. Storm coverage is more uncertain across northwest Arkansas and southeast Oklahoma. Any storms that develop will have the potential to produce all severe hazards, including very large hail, locally damaging wind and tornadoes. Storms during the overnight hours, especially across northeast Oklahoma, will have higher-end tornado potential. The storm threat should come to an end by around 5 AM. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Activation of the Regional Spotter Network Likely. .DAYS TWO THROUGH SEVEN...Monday through Saturday. MONDAY...Thunderstorm Potential...High Wind Potential. TUESDAY...Severe Thunderstorm Potential. WEDNESDAY...No Hazards. THURSDAY...Thunderstorm Potential. FRIDAY...Thunderstorm Potential. SATURDAY...Thunderstorm Potential. EXTENDED DISCUSSION... Strong to severe storm potential will increase Monday afternoon along and ahead of a cold front. This potential will be greatest east of Interstate 49 in northwest Arkansas, with lower potential across extreme southeast Oklahoma. Large hail and locally damaging winds will be the main threats. Another round of storms and some potential for severe weather Tuesday afternoon, south of the front across southeast Oklahoma and western Arkansas. A lull in storm chances is forecast Wednesday, however storm chances increase again for the latter part of the week with the approach of another storm system. At this time, the severe weather potential is expected to be low. weather.gov/tulsa contains additional information.
In the hours before
Special weather statement, Apr 26, 6:58 PM CDT, 1 hour 43 minutes before
Special Weather Statement
National Weather Service Tulsa OK
658 PM CDT Sun Apr 26 2026
OKZ154-270030-
Western Osage OK-
658 PM CDT Sun Apr 26 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN OSAGE COUNTY
THROUGH 730 PM CDT...
At 658 PM CDT, Doppler radar indicated a strong thunderstorm near Kaw
City, moving northeast at 25 mph.
HAZARD...Wind gusts up to 40 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...
Shidler... Burbank...
Grainola... Foraker...
Pearsonia... Eastern Kaw Lake...
Webb City... Apperson...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
A Tornado Watch remains in effect until midnight CDT for northeastern
Oklahoma.
&&
LAT...LON 3681 9643 3675 9644 3667 9685 3675 9689
3675 9687 3674 9683 3676 9682 3677 9682
3677 9679 3678 9679 3678 9675 3694 9675
3700 9664 3700 9656
TIME...MOT...LOC 2358Z 243DEG 22KT 3679 9682
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPHLocal storm report, Apr 26, 7:37 PM CDT, 1 hour 4 minutes before
Preliminary Local Storm Report
National Weather Service Tulsa OK
737 PM CDT Sun Apr 26 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0730 PM Hail 2 S Foraker 36.85N 96.57W
04/26/2026 E1.00 Inch Osage OK NWS Employee
&&Local storm report, Apr 26, 8:07 PM CDT, 34 minutes before
Preliminary Local Storm Report
National Weather Service Tulsa OK
807 PM CDT Sun Apr 26 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0755 PM Tornado 2 S Foraker 36.84N 96.57W
04/26/2026 Osage OK Broadcast Media
Spotter video of tornado approximately 2
miles south of Foraker.
&&
CASLocal storm report, Apr 26, 8:28 PM CDT, 13 minutes before
Preliminary Local Storm Report
National Weather Service Tulsa OK
828 PM CDT Sun Apr 26 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 PM Tornado 3 S Foraker 36.82N 96.56W
04/26/2026 Osage OK Trained Spotter
Power lines down south of Foraker.
&&The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 7:10 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 50 min |
| Apr 26, 7:38 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 52 min |
| Apr 26, 7:50 PM CDT | Tornado Warning | TSA | Osage | 55 min |
| Apr 26, 7:57 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 21 min |
| Apr 26, 9:36 PM CDT | Special Weather Statement | TSA | Washington | 24 min |
| Apr 26, 9:46 PM CDT | Special Weather Statement | TSA | Washington | 29 min |
| Apr 26, 10:29 PM CDT | Special Weather Statement | TSA | Ottawa | 31 min |
| Apr 27, 6:20 PM CDT | Special Weather Statement | TSA | Choctaw | 10 min |
Nearby
Tornado Warnings in Oklahoma, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.