Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 528, NWS Norman, OK

May 26, 20256 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 26, 2025, 10:32 PM CDT for 6 counties in Oklahoma. It was in force for 43 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: May 26, 2025, 10:32 PM CDT (03:32 UTC)
Expired: May 26, 2025, 11:15 PM CDT
In force: 43 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Beckham County, OK, Custer County, OK, Greer County, OK, Kiowa County, OK, Roger Mills County, OK, Washita County, OK

The radar

The Altus AFB radar (KFDR), 108 km from the middle of the area, began a volume at 03:32 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 3.5 hours before the alert went out and 216 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1011 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1464 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 69 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.9

Open this sounding in Storm Lab

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 May 26, 6:50 PM CDT, 3 hours 42 minutes earlier. Its key messages:

Updated at 641 PM CDT Mon May 26 2025
Scattered storms tonight.
After a brief break, rain chances return late Wednesday / Thursday.

Area forecast discussion, May 26, 6:50 PM CDT, 3 hours 42 minutes before

Area Forecast Discussion
National Weather Service Norman OK
650 PM CDT Mon May 26 2025

...New AVIATION...

.KEY MESSAGES...
Updated at 641 PM CDT Mon May 26 2025

 - Scattered storms tonight.

 - After a brief break, rain chances return late Wednesday /
   Thursday.

&&

.NEAR TERM...
(Rest of today and tonight)
Issued at 156 PM CDT Mon May 26 2025

The upper trough over the Rockies will move toward the Plains
today with lift increasing tonight. This will provide enough
lift for scattered showers and thunderstorms tonight. The low-
level airmass has been worked over by this morning's storms, but
there has been enough instability redeveloping and deep-layer
wind shear is sufficient that some isolated strong or marginally
severe storms will be possible. But low-level wind shear is very
weak. Fortunately, the most likely area for showers and storms
tonight is not where we have seen the heaviest precipitation over
the last couple of days.

&&

.SHORT TERM...
(Tuesday through Wednesday night)
Issued at 156 PM CDT Mon May 26 2025

Precipitation chances will be low on Tuesday/Tuesday night after
the trough moves to the east. But the trough does not go too far
to the east at the main upper low sits and spins over the Upper
Mississippi Valley. An upper trough pivots southward around the
south side of the upper low on Wednesday/Wednesday night with
increasing precipitation chances again. With upslope low-level
winds over the central High Plains and this trough moving south, a
thunderstorm complex will likely develop over the eastern Colorado
Plains and move southeast bringing very high precipitation chances
into northwest Oklahoma Wednesday night.

&&

.LONG TERM...
(Wednesday through next Sunday)
Issued at 1057 PM CDT Sun May 25 2025

After our midweek respite, models suggest the next upper wave moving
through Wednesday night / Thursday with an associated front,
bringing medium rain chances with it. Too early to start diving into
mesoscale details as the synoptic level is still showing some model
variance.

After this wave moves through, we should get another dry period
before another shortwave possibly arrives sometime next weekend.

Day

&&

.AVIATION...
(00Z TAFS)
Issued at 641 PM CDT Mon May 26 2025

Low ceiling from persisting stratus will keep our terminals under
MVFR to periods of IFR conditions through much of the forecast
period. An upper trough will be digging through bringing a final
round of TSRA across our area generally between 03-10Z although
probabilities of any storms moving over our terminals is around
30%. Easterly surface winds will be gradually backing more
northeasterly as a warm front will be lifting although windspeeds
rather weak at 5 to 10 kts.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  75  60  73  58 /  50  50  10  10
Hobart OK         76  59  75  57 /  60  50  10  10
Wichita Falls TX  78  64  77  61 /  50  40   0  10
Gage OK           71  54  73  54 /  60  50  10  10
Ponca City OK     72  57  72  55 /  70  50  10   0
Durant OK         79  65  78  62 /  90  60  20  10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...None.
TX...None.
&&

NEAR TERM...26
SHORT TERM...26
LONG TERM....14
AVIATION...68

In the hours before

Local storm report, May 26, 9:34 PM CDT, 58 minutes before

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Local storm report, May 26, 9:35 PM CDT, 57 minutes before

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Local storm report, May 26, 9:36 PM CDT, 56 minutes before

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Local storm report, May 26, 9:44 PM CDT, 48 minutes before

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Local storm report, May 26, 9:51 PM CDT, 41 minutes before

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Special weather statement, May 26, 10:20 PM CDT, 12 minutes before

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The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 7:18 PM CDT	Special Weather Statement	OUN	Ellis	27 min
May 26, 7:36 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Woodward	39 min
May 26, 7:59 PM CDT	Tornado Warning	OUN	Ellis, Woodward	32 min
May 26, 8:01 PM CDT	Special Weather Statement	OUN	Roger Mills	29 min
May 26, 8:08 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	52 min
May 26, 8:11 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	31 min
May 26, 8:32 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Woodward	43 min
May 26, 8:37 PM CDT	Severe Thunderstorm Warning	OUN	Dewey	38 min
May 26, 8:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Ellis, Roger Mills	49 min
May 26, 9:08 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis	37 min
May 26, 9:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Custer, Dewey	46 min
May 26, 9:16 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Custer, Roger Mills	44 min
May 26, 9:35 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	40 min
May 26, 9:56 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey	49 min
May 26, 9:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Custer, Washita	48 min
May 26, 10:20 PM CDT	Special Weather Statement	OUN	Roger Mills	25 min
May 26, 10:37 PM CDT	Severe Thunderstorm Warning	OUN	Blaine	38 min
May 26, 10:38 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Washita	52 min
May 26, 11:08 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Custer, Washita	52 min
May 26, 11:14 PM CDT	Special Weather Statement	OUN	Canadian	31 min
May 26, 11:25 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Caddo, Washita	50 min
May 26, 11:37 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher	38 min
May 26, 11:50 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Caddo, Kiowa, Washita	40 min
May 27, 12:10 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Oklahoma	25 min
May 27, 12:25 AM CDT	Severe Thunderstorm Warning	OUN	Caddo	50 min
May 27, 1:11 AM CDT	Special Weather Statement	OUN	Grady	49 min
May 27, 1:12 AM CDT	Special Weather Statement	OUN	Jackson	48 min
May 27, 1:49 AM CDT	Special Weather Statement	OUN	Tillman	41 min
May 27, 1:55 AM CDT	Special Weather Statement	OUN	Cleveland, Grady, McClain	50 min
May 27, 2:37 AM CDT	Special Weather Statement	OUN	Cotton	38 min
May 27, 3:14 AM CDT	Special Weather Statement	OUN	Cotton	46 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2025 Every severe thunderstorm warning in 2025

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.