Alert archive / Oklahoma / Red Flag Warnings in 2026
Red Flag Warning 21, NWS Norman, OK
NWS Norman, OK issued this red flag warning at Apr 15, 2026, 2:02 PM CDT for 6 counties in Oklahoma. It took effect at Apr 16, 2026, 12:00 PM CDT. It was in force for 9 hr. 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 15, 2026, 2:02 PM CDT (19:02 UTC)
- In effect from
- Apr 16, 2026, 12:00 PM CDT
- Expired
- Apr 16, 2026, 9:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Norman, OK
Counties Beckham County, OK, Ellis County, OK, Harper County, OK, Roger Mills County, OK, Woods County, OK, Woodward County, OK
The radar
The Vance AFB radar (KVNX), 136 km from the middle of the area, began a volume at 19:03 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 12:00Z, 7.0 hours before the alert went out and 217 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
- 1732 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 554 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 354 m²/s²
- 0-3 km storm-relative helicity
- 400 m²/s²
- Significant tornado parameter
- 3.7
- Supercell composite
- 14.7
The text
As transmitted.
286 WWUS84 KOUN 151902 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 202 PM CDT Wed Apr 15 2026 OKZ004-005-009-010-014-021-170200- /O.NEW.KOUN.FW.W.0021.260416T1700Z-260417T0200Z/ Harper-Woods-Ellis-Woodward-Roger Mills-Beckham- 202 PM CDT Wed Apr 15 2026 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM CDT THURSDAY FOR HOT, DRY AND WINDY CONDITIONS ACROSS NORTHWESTERN OKLAHOMA... The National Weather Service in Norman has issued a Red Flag Warning, which is in effect from noon to 9 PM CDT Thursday. * WINDS...South 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 7 percent. * TEMPERATURES...Up to 90. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * SEVERITY... FUELS (ERC)...70th-89th percentile...4 (out of 5). WEATHER...Near Critical...2 (out of 5). FIRE ENVIRONMENT...6 (out of 10). PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures will contribute to extreme fire behavior. && $$
2 follow-up statements
020 WWUS84 KOUN 160717 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 217 AM CDT Thu Apr 16 2026 OKZ004-005-009-010-014-021-170200- /O.CON.KOUN.FW.W.0021.260416T1700Z-260417T0200Z/ Harper-Woods-Ellis-Woodward-Roger Mills-Beckham- 217 AM CDT Thu Apr 16 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS EVENING FOR HOT, DRY AND WINDY CONDITIONS ACROSS NORTHWESTERN OKLAHOMA... * WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 91. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * SEVERITY... FUELS (ERC)...70th-89th percentile...4 (out of 5). WEATHER...Near Critical...2 (out of 5). FIRE ENVIRONMENT...6 (out of 10). PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures will contribute to extreme fire behavior. && $$
258 WWUS84 KOUN 161953 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 253 PM CDT Thu Apr 16 2026 OKZ004-005-009-010-014-021-170400- /O.NEW.KOUN.FW.W.0022.260417T1700Z-260418T0200Z/ /O.CON.KOUN.FW.W.0021.000000T0000Z-260417T0200Z/ Harper-Woods-Ellis-Woodward-Roger Mills-Beckham- 253 PM CDT Thu Apr 16 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING ACROSS NORTHWEST AND WESTERN OKLAHOMA... ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM CDT FRIDAY FOR HOT, DRY AND WINDY CONDITIONS ACROSS NORTHWEST AND WESTERN OKLAHOMA... The National Weather Service in Norman has issued a Red Flag Warning, which is in effect from noon to 9 PM CDT Friday. * WINDS...Today, south-southwest at 15 to 20 mph with gusts up to 35 mph. On Friday, southwest at 15 to 25 mph with gusts to 40 mph shifting to the north-northwest at 20 to 25 mph with gusts to 45 mph possible. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 90. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * SEVERITY... FUELS (ERC)...70th-89th percentile...4 (out of 5). WEATHER...Near Critical...2 (out of 5). FIRE ENVIRONMENT...6 (out of 10). PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures will contribute to extreme fire behavior. && $$ OKZ015-016-022-170400- /O.NEW.KOUN.FW.W.0022.260417T1700Z-260418T0200Z/ Dewey-Custer-Washita- 253 PM CDT Thu Apr 16 2026 ..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM CDT FRIDAY FOR HOT, DRY AND WINDY CONDITIONS ACROSS WESTERN OKLAHOMA... The National Weather Service in Norman has issued a Red Flag Warning, which is in effect from noon to 9 PM CDT Friday. * WINDS...South 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 28 percent. * TEMPERATURES...Up to 86. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * SEVERITY... FUELS (ERC)...50th-69th percentile...3 (out of 5). WEATHER...Elevated...1 (out of 5). FIRE ENVIRONMENT...4 (out of 10). PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures will contribute to extreme fire behavior. && $$
What forecasters said that day
The local office's own words before this red flag 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 red flag warning went out at Apr 15, 1:00 PM CDT, 1 hour 2 minutes earlier. Its key messages:
- Updated at 1230 PM CDT Wed Apr 15 2026
- Strong to severe thunderstorms possible Wednesday and Friday.
- Elevated to near-critical fire weather conditions will return several days this week, especially across portions of northwestern and far western Oklahoma.
- Dry and cooler weather this weekend.
Area forecast discussion, Apr 15, 1:00 PM CDT, 1 hour 2 minutes before
Area Forecast Discussion National Weather Service Norman OK 100 PM CDT Wed Apr 15 2026 ...New AVIATION... .KEY MESSAGES... Updated at 1230 PM CDT Wed Apr 15 2026 - Strong to severe thunderstorms possible Wednesday and Friday. - Elevated to near-critical fire weather conditions will return several days this week, especially across portions of northwestern and far western Oklahoma. - Dry and cooler weather this weekend. && .NEAR TERM... (Through Wednesday) Issued at 149 AM CDT Wed Apr 15 2026 Early this morning, a few elevated showers and thunderstorms are moving across southwestern and central Oklahoma. This activity may produce small hail, brief heavy rainfall and strong gusty winds. A few global models continue develop more widespread showers and thunderstorms across parts of south central and southeastern Oklahoma before sunrise, while CAMs keep coverage isolated to widely scattered. Ceiling heights across south central and southeastern Oklahoma are roughly 4-6k feet and soundings suggest about 1000 J/kg of elevated CAPE. For now will side with more isolated to widely scattered coverage through sunrise. Later this afternoon, at least scattered thunderstorms are expected to develop along a near a dryline. The dryline will be located farther east than Tuesday, so perhaps initial storm develop will be along and east of an Enid to Lawton and Seymour, Texas line. It's possible that upscale growth will occur quickly to an MCS or line segments. This would limit the large hail risk to the first few hours of development with an evolution to strong winds, smaller hail, and heavy rainfall. && .SHORT TERM... (Wednesday night through Friday night) Issued at 149 AM CDT Wed Apr 15 2026 A trailing shortwave trough is expected to move across the Panhandles and western Oklahoma late Wednesday evening into early Thursday morning. Although a majority of the convection will be confined to the eastern third of Oklahoma by late Wednesday evening, some lingering precipitation is possible. With mainly dry conditions expected on Thursday, focus will turn to fire weather conditions across western Oklahoma during the afternoon. Temperatures will be very warm to hot, and afternoon humidity will fall to around 10 to 15 percent across the western third of the state including the adjacent area of northern Texas. A southwesterly wind will be a little breezy but wind gusts are expected to be in the 25-30 mph range. Thursday evening and overnight, a shortwave trough will approach in southwesterly flow aloft. This may result widely scattered showers and perhaps thunderstorms. Most of this activity should be northeast of the area by mid to late morning. By mid afternoon Friday, a dryline is expected to sharpen across western Oklahoma, as an upper trough approaches the northern and central Plains. With mid to upper 60s dewpoint in place, instability will increase to around 3000 J/kg. So if a few storms develop along the dry, supercells are likely with a risk of very large hail, damaging winds and tornadoes. By early to mid evening, a strong cold front will begin to move across parts of western and northern Oklahoma. Thunderstorms will likely develop along the front with a risk of damaging winds and hail. The surface cold front will clear southeastern Oklahoma by early Saturday morning. && .LONG TERM... (Saturday through Tuesday) Issued at 149 AM CDT Wed Apr 15 2026 Northerly winds behind a cold front will continue to usher in a much drier airmass on Saturday. An elevated frontal boundary across south central and southeastern Oklahoma may result in scattered showers through the late morning/early afternoon. With portions of western Oklahoma missing out on the recent rainfall, elevated fire weather conditions will be possible Saturday afternoon, especially across northwestern Oklahoma where fuels remain receptive to fire. With a clear sky expected and light winds, portions of northern and western Oklahoma may see a light freeze by sunrise Sunday. Currently, forecast temperatures are in the mid 30s, but certainly would not be surprised to see some upper 20s to lower 30s. After a cold start Sunday, temperatures will warm into the lower and mid 70s by afternoon. The wind will become a little breezy across western Oklahoma, so maybe a few hours of elevated fire weather conditions during the afternoon. A low amplitude shortwave trough will move across Texas late Sunday into Monday. This may result in a few showers and storms mainly across southern Oklahoma and northern Texas late Sunday into Monday. On Tuesday, a breezy southerly wind is expected with modest moisture return. Rain and storm chances will remain around 10 percent during the day. && .AVIATION... (18Z TAFS) Issued at 1230 PM CDT Wed Apr 15 2026 Dense cloud cover producing broken ceilings will keep a few of our terminals in central Oklahoma under periods of MVFR conditions through 00Z. A dryline was advancing across western Oklahoma which could produce isolated thunderstorms this afternoon impacting all terminals east of the dryline before retreating westward after sundown. Terminals KWWR & KCSM will remain west of the dryline with no storm activity but have TEMPOS for TSRA across our remaining terminals through 01Z although will keep terminal KDUA through 06Z. Surface winds go light after 00Z although cannot rule out any outflow boundaries from potential storm activity affecting surface winds. A low-level jet will set up tonight generally across southeast Oklahoma which could produce low-level wind shear conditions after 06Z affecting only terminals KDUA and KSPS. Stratus may increase late tonight across southeast to central Oklahoma between 08-14Z with a higher potential for radiational fog development in western Oklahoma closer to the dryline. As a result all terminals east of the retreated dryline (all expect for KWWR) could reduce to MVFR or periods of IFR categories due to potential low ceilings and/or lowered visibilities. && .PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 81 59 86 65 / 70 30 0 10 Hobart OK 86 53 90 62 / 40 10 0 10 Wichita Falls TX 85 61 91 65 / 60 10 0 10 Gage OK 83 47 89 60 / 10 0 0 0 Ponca City OK 82 56 85 64 / 60 40 0 0 Durant OK 78 64 86 66 / 80 50 10 10 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...None. TX...None. && NEAR TERM...06 SHORT TERM...06 LONG TERM....06 AVIATION...68
In the hours before
Special weather statement, Apr 15, 8:47 AM CDT, 5 hours 15 minutes before
Special Weather Statement
National Weather Service Norman OK
847 AM CDT Wed Apr 15 2026
OKZ047-051-052-151415-
Johnston OK-Marshall OK-Bryan OK-
847 AM CDT Wed Apr 15 2026
...A strong thunderstorm will impact portions of south central
Johnston, northwestern Bryan and eastern Marshall Counties through
915 AM CDT...
At 847 AM CDT, Doppler radar was tracking a strong thunderstorm near
Lake Texoma, moving northeast at 40 mph.
HAZARD...Wind gusts of 30 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Durant, Kingston, Silo, Mead, Little City, Woodville, Nida,
northeastern Lake Texoma, and Mcbride.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3396 9686 3418 9653 3401 9635 3390 9664
3392 9666 3391 9668 3388 9668 3385 9677
TIME...MOT...LOC 1347Z 237DEG 35KT 3394 9673
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH
30Local storm report, Apr 15, 9:07 AM CDT, 4 hours 55 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
907 AM CDT Wed Apr 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0856 AM Hail 3 SW Woodville 33.94N 96.69W
04/15/2026 E1.00 Inch Marshall OK Public
Report from mPING: Quarter (1.00 in.).
&&Special weather statement, Apr 15, 9:07 AM CDT, 4 hours 55 minutes before
Special Weather Statement
National Weather Service Norman OK
907 AM CDT Wed Apr 15 2026
OKZ048-051-052-151430-
Atoka OK-Marshall OK-Bryan OK-
907 AM CDT Wed Apr 15 2026
...Strong thunderstorms will impact portions of northwestern Bryan,
east central Marshall and southwestern Atoka Counties through 930 AM
CDT...
At 907 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Caddo to near Mead to 4 miles north of
Colbert. Movement was northeast at 40 mph.
HAZARD...Wind gusts of 30 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Durant, Colbert, Caddo, Bokchito, Silo, Tushka, Caney, Kenefic, Mead,
Armstrong, Cartwright, Blue, eastern Lake Texoma, Calera, and
Bentley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3416 9598 3415 9597 3414 9595 3407 9594
3383 9657 3388 9660 3389 9659 3390 9661
3402 9667 3412 9651 3411 9646 3415 9645
3416 9641 3418 9641 3438 9608 3416 9586
TIME...MOT...LOC 1407Z 242DEG 34KT 3414 9627 3402 9655 3392 9653
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...30 MPH
30The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 7:01 PM CDT | Special Weather Statement | OUN | Caddo, Custer, Kiowa, Washita | 29 min |
| Apr 14, 7:13 PM CDT | Severe Thunderstorm Warning | OUN | Jackson, Tillman | 47 min |
| Apr 14, 7:21 PM CDT | Severe Thunderstorm Warning | OUN | Comanche | 24 min |
| Apr 14, 7:28 PM CDT | Special Weather Statement | OUN | Caddo, Canadian | 62 min |
| Apr 14, 7:36 PM CDT | Areal Flood Advisory | OUN | Comanche | 67 min |
| Apr 14, 7:42 PM CDT | Special Weather Statement | OUN | Comanche | 33 min |
| Apr 14, 7:49 PM CDT | Special Weather Statement | OUN | McClain | 26 min |
| Apr 14, 7:52 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Stephens, Tillman | 38 min |
| Apr 14, 8:14 PM CDT | Special Weather Statement | OUN | Cleveland | 31 min |
| Apr 14, 8:24 PM CDT | Flash Flood Warning | OUN | Comanche | 2 hr |
| Apr 14, 8:25 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Comanche, Cotton, Grady, Jefferson, Stephens | 50 min |
| Apr 14, 8:39 PM CDT | Special Weather Statement | OUN | Pottawatomie | 36 min |
| Apr 14, 8:49 PM CDT | Special Weather Statement | OUN | Noble | 26 min |
| Apr 14, 9:01 PM CDT | Severe Thunderstorm Warning | OUN | Carter, Cleveland, Garvin, Grady, McClain, Stephens | 44 min |
| Apr 14, 9:09 PM CDT | Special Weather Statement | OUN | Noble | 36 min |
| Apr 14, 9:17 PM CDT | Special Weather Statement | OUN | Pottawatomie, Seminole | 28 min |
| Apr 14, 9:29 PM CDT | Severe Thunderstorm Warning | OUN | Cleveland, Garvin, McClain, Pontotoc, Pottawatomie, Seminole | 46 min |
| Apr 14, 9:32 PM CDT | Areal Flood Advisory | OUN | Garvin, Grady, Stephens | 118 min |
| Apr 14, 10:00 PM CDT | Severe Thunderstorm Warning | OUN | Hughes, Pontotoc, Seminole | 45 min |
| Apr 14, 11:32 PM CDT | Special Weather Statement | OUN | Seminole | 43 min |
| Apr 15, 12:47 AM CDT | Special Weather Statement | OUN | Grady | 28 min |
| Apr 15, 1:10 AM CDT | Special Weather Statement | OUN | Grady | 50 min |
| Apr 15, 1:14 AM CDT | Severe Thunderstorm Warning | OUN | Cleveland, Grady, McClain | 46 min |
| Apr 15, 1:56 AM CDT | Severe Thunderstorm Warning | OUN | Cleveland, McClain, Oklahoma | 49 min |
| Apr 15, 2:24 AM CDT | Special Weather Statement | OUN | Pottawatomie | 36 min |
| Apr 15, 8:47 AM CDT | Special Weather Statement | OUN | Marshall | 28 min |
| Apr 15, 9:07 AM CDT | Special Weather Statement | OUN | Bryan | 23 min |
| Apr 15, 2:43 PM CDT | River Flood Advisory | OUN | Comanche, Cotton | 18 hr |
| Apr 15, 3:42 PM CDT | Special Weather Statement | OUN | Okfuskee | 33 min |
| Apr 15, 4:08 PM CDT | Severe Thunderstorm Warning | OUN | Cotton, Jefferson | 52 min |
| Apr 15, 4:44 PM CDT | Special Weather Statement | OUN | Stephens | 31 min |
| Apr 15, 4:53 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, Grady, Stephens | 23 min |
| Apr 15, 5:29 PM CDT | Special Weather Statement | OUN | Jefferson | 31 min |
| Apr 15, 5:41 PM CDT | Special Weather Statement | OUN | Johnston | 34 min |
| Apr 15, 5:44 PM CDT | Areal Flood Advisory | OUN | Jefferson | 3 hr |
| Apr 15, 6:00 PM CDT | Severe Thunderstorm Warning | OUN | Jefferson | 45 min |
| Apr 15, 6:05 PM CDT | Areal Flood Advisory | OUN | Carter | 3 hr |
| Apr 15, 6:17 PM CDT | Special Weather Statement | OUN | Payne | 28 min |
| Apr 15, 6:20 PM CDT | Special Weather Statement | OUN | Johnston, Love | 25 min |
| Apr 15, 6:23 PM CDT | Special Weather Statement | OUN | Atoka | 37 min |
| Apr 15, 6:28 PM CDT | Severe Thunderstorm Warning | OUN | Noble, Payne | 14 min |
| Apr 15, 6:42 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Carter, Coal, Hughes, Jefferson, Johnston and 4 more | 48 min |
| Apr 15, 6:43 PM CDT | Severe Thunderstorm Warning | OUN | Jefferson, Love | 47 min |
| Apr 15, 6:53 PM CDT | Flash Flood Warning | OUN | Carter | 3 hr |
| Apr 15, 6:57 PM CDT | Special Weather Statement | OUN | Payne | 33 min |
Nearby
Red Flag Warnings in Oklahoma, 2026Every red flag 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.