Alert archive / Oklahoma / Flash Flood Warnings in 2025

Flash Flood Warning 51, NWS Norman, OK

April 30, 20254 counties in Oklahoma

NWS Norman, OK issued this flash flood warning at Apr 30, 2025, 7:02 AM CDT for 4 counties in Oklahoma. It was in force for 3 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 30, 2025, 7:02 AM CDT (12:02 UTC)
Expired: Apr 30, 2025, 10:15 AM CDT
In force: 3 hr
Issued by: NWS Norman, OK
Area: Storm-based polygon
Flood severity: None

Counties Cleveland County, OK, Grady County, OK, McClain County, OK, Stephens County, OK

The radar

The Norman radar (KTLX), 55 km from the middle of the area, began a volume at 12:03 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

Fort Worth, TX (KFWD), launched 12:00Z, 0.0 hours before the alert went out and 235 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: 903 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 541 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 373 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 8.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Apr 30, 5:58 AM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, Apr 30, 5:58 AM CDT, 1 hour 4 minutes before

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In the hours before

Special weather statement, Apr 30, 3:34 AM CDT, 3 hours 28 minutes before

Special Weather Statement
National Weather Service Norman OK
334 AM CDT Wed Apr 30 2025

OKZ027-039>041-046-300915-
Grady OK-Stephens OK-Carter OK-Garvin OK-Murray OK-
334 AM CDT Wed Apr 30 2025

...Strong thunderstorms will impact portions of western Garvin,
southeastern Grady, Stephens, northwestern Carter and west central
Murray Counties through 415 AM CDT...

At 334 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 5 miles northeast of Bray to 7 miles west of
Velma to 5 miles west of Loco. Movement was northeast at 30 mph.

HAZARD...Wind gusts of 40 mph and pea 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...
Duncan, Maysville, Bray, Elmore City, Velma, Katie, Foster, Tatums,
Loco, Ratliff City, Graham, Pooleville, Antioch, Hennepin, Milo, Fox,
Pernell, and Cox City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3447 9795 3471 9791 3486 9740 3485 9735
      3465 9735 3432 9733 3429 9780 3429 9790
TIME...MOT...LOC 0834Z 246DEG 28KT 3469 9774 3449 9779 3431 9777

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

30

Local storm report, Apr 30, 3:46 AM CDT, 3 hours 16 minutes before

Preliminary Local Storm Report
National Weather Service Norman OK
346 AM CDT Wed Apr 30 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0305 AM     Tstm Wnd Dmg     Comanche                34.37N 97.96W
04/30/2025                   Stephens           OK   Law Enforcement

            Large tree (3 or 4 foot diameter) tree fell
            onto house.

&&

Local storm report, Apr 30, 3:48 AM CDT, 3 hours 14 minutes before

Preliminary Local Storm Report
National Weather Service Norman OK
348 AM CDT Wed Apr 30 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0312 AM     Tstm Wnd Dmg     4 E Comanche            34.37N 97.90W
04/30/2025                   Stephens           OK   Law Enforcement

            Power lines down on Highway 53 approximately
            3 mile west of Comanche Lake. time
            estimated.

&&

Local storm report, Apr 30, 4:11 AM CDT, 2 hours 51 minutes before

Preliminary Local Storm Report
National Weather Service Norman OK
411 AM CDT Wed Apr 30 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0359 AM     Tstm Wnd Gst     4 NW Knox City          33.45N 99.87W
04/30/2025  M69 MPH          Knox               TX   Mesonet

            West Texas Mesonet observation.

&&

Local storm report, Apr 30, 4:20 AM CDT, 2 hours 42 minutes before

Preliminary Local Storm Report
National Weather Service Norman OK
420 AM CDT Wed Apr 30 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0409 AM     Tstm Wnd Gst     2 SE Truscott           33.73N 99.79W
04/30/2025  M60 MPH          Knox               TX   Mesonet

&&

Local storm report, Apr 30, 5:56 AM CDT, 1 hour 6 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
Apr 29, 7:05 PM CDT	Areal Flood Advisory	OUN	Greer, Harmon, Jackson, Kiowa, Tillman	6 hr
Apr 29, 7:05 PM CDT	Special Weather Statement	OUN	Jackson	25 min
Apr 29, 7:12 PM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, Grady, Kingfisher, Logan, McClain and 1 more	8 hr
Apr 29, 7:13 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	47 min
Apr 29, 7:14 PM CDT	Special Weather Statement	OUN	Logan	46 min
Apr 29, 7:33 PM CDT	Tornado Warning	OUN	Tillman	27 min
Apr 29, 7:41 PM CDT	Flash Flood Warning	OUN	Comanche, Jackson, Kiowa, Tillman	9 hr
Apr 29, 7:45 PM CDT	Severe Thunderstorm Warning	OUN	Noble, Payne	45 min
Apr 29, 7:50 PM CDT	Areal Flood Advisory	OUN	Comanche, Cotton, Jefferson, Stephens, Tillman	8 hr
Apr 29, 7:52 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Kiowa, Tillman	38 min
Apr 29, 7:52 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Cotton	38 min
Apr 29, 7:53 PM CDT	Tornado Warning	OUN	Tillman	17 min
Apr 29, 8:04 PM CDT	Special Weather Statement	OUN	Payne	41 min
Apr 29, 8:17 PM CDT	Flash Flood Warning	OUN	Comanche, Cotton, Tillman	4 hr
Apr 29, 8:19 PM CDT	Tornado Warning	OUN	Cotton	26 min
Apr 29, 8:24 PM CDT	Tornado Warning	OUN	Cotton	21 min
Apr 29, 8:26 PM CDT	River Flood Warning	OUN	Atoka	4 days
Apr 29, 8:27 PM CDT	Tornado Warning	OUN	Cotton	33 min
Apr 29, 8:31 PM CDT	Special Weather Statement	OUN	Logan	29 min
Apr 29, 8:35 PM CDT	Tornado Warning	OUN	Cotton, Jefferson, Stephens	25 min
Apr 29, 8:39 PM CDT	Tornado Warning	OUN	Jefferson	36 min
Apr 29, 8:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Comanche, Cotton, Jefferson, Stephens	49 min
Apr 29, 8:57 PM CDT	Tornado Warning	OUN	Comanche, Cotton, Stephens	33 min
Apr 29, 9:14 PM CDT	Flash Flood Warning	OUN	Caddo, Comanche, Cotton, Garvin, Grady, Jefferson and 2 more	3 hr
Apr 29, 9:19 PM CDT	Flash Flood Warning	OUN	Canadian, Cleveland, Grady, Logan, McClain, Oklahoma	3 hr
Apr 29, 9:27 PM CDT	River Flood Warning	OUN	Garvin, Grady	47 hr
Apr 29, 9:29 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Carter, Comanche, Garvin, Grady, Jefferson, Love and 3 more	46 min
Apr 29, 9:40 PM CDT	Areal Flood Advisory	OUN	Lincoln, Logan, Payne	3 hr
Apr 29, 9:55 PM CDT	Flash Flood Warning	OUN	Cleveland, Garvin, McClain, Murray, Pottawatomie	2 hr
Apr 29, 10:11 PM CDT	Flash Flood Warning	OUN	Lincoln, Logan, Payne	3 hr
Apr 29, 10:18 PM CDT	Special Weather Statement	OUN	Pottawatomie	27 min
Apr 29, 10:23 PM CDT	Flash Flood Warning Considerable damage threat	OUN	Cleveland, Logan, Oklahoma	3 hr
Apr 29, 10:25 PM CDT	Special Weather Statement	OUN	Love	35 min
Apr 29, 10:42 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Love	48 min
Apr 29, 11:10 PM CDT	Flash Flood Warning	OUN	Cleveland, Garvin, Lincoln, McClain, Oklahoma, Pontotoc and 2 more	3 hr
Apr 29, 11:13 PM CDT	Special Weather Statement	OUN	Hughes, Seminole	32 min
Apr 29, 11:21 PM CDT	Special Weather Statement	OUN	Love	24 min
Apr 29, 11:55 PM CDT	Flash Flood Warning	OUN	Love	3 hr
Apr 30, 12:07 AM CDT	Severe Thunderstorm Warning	OUN	Love	38 min
Apr 30, 12:26 AM CDT	Special Weather Statement	OUN	Cotton	34 min
Apr 30, 12:29 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Tillman	46 min
Apr 30, 12:45 AM CDT	Severe Thunderstorm Warning	OUN	Love	30 min
Apr 30, 1:19 AM CDT	Flash Flood Warning	OUN	Comanche, Cotton, Tillman	5 hr
Apr 30, 1:36 AM CDT	Special Weather Statement	OUN	Tillman	24 min
Apr 30, 1:38 AM CDT	Areal Flood Advisory	OUN	Caddo	3 hr
Apr 30, 2:14 AM CDT	Special Weather Statement	OUN	Cotton	31 min
Apr 30, 2:26 AM CDT	River Flood Warning	OUN	Payne	54 hr
Apr 30, 2:26 AM CDT	River Flood Advisory	OUN	Logan	13 hr
Apr 30, 2:27 AM CDT	Flash Flood Warning	OUN	Comanche, Cotton, Jefferson, Stephens	7 hr
Apr 30, 2:34 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Jefferson, Stephens	41 min
Apr 30, 3:05 AM CDT	Flash Flood Warning Considerable damage threat	OUN	Cotton	6 hr
Apr 30, 3:25 AM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, Grady, Logan, McClain, Oklahoma	3 hr
Apr 30, 3:32 AM CDT	Flash Flood Warning	OUN	Garvin, Grady, Stephens	3 hr
Apr 30, 3:34 AM CDT	Special Weather Statement	OUN	Stephens	41 min
Apr 30, 3:40 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Grady, Murray, Stephens	50 min
Apr 30, 4:11 AM CDT	Flash Flood Warning Considerable damage threat	OUN	Carter, Cotton, Garvin, Grady, Jefferson, McClain and 1 more	6 hr
Apr 30, 4:27 AM CDT	Flash Flood Warning	OUN	Caddo, Comanche, Jackson, Kiowa, Tillman	5 hr
Apr 30, 4:29 AM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain	24 min
Apr 30, 4:34 AM CDT	Flash Flood Warning	OUN	Cleveland, Garvin, McClain, Murray, Pontotoc, Pottawatomie	11 hr
Apr 30, 4:42 AM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	48 min
Apr 30, 5:11 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Jackson, Kiowa, Tillman	49 min
Apr 30, 5:21 AM CDT	Flash Flood Warning	OUN	Cotton, Tillman	3 hr
Apr 30, 5:24 AM CDT	Flash Flood Warning	OUN	Lincoln, Pontotoc, Pottawatomie, Seminole	10 hr
Apr 30, 5:50 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Jefferson, Stephens	40 min
Apr 30, 5:55 AM CDT	Flash Flood Warning Considerable damage threat	OUN	Comanche, Cotton, Kiowa, Stephens, Tillman	3 hr
Apr 30, 6:20 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Cotton, Garvin, Jefferson, Stephens	40 min
Apr 30, 6:33 AM CDT	Areal Flood Warning	OUN	Comanche, Cotton, Tillman	4 hr
Apr 30, 6:55 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Jefferson, Murray, Stephens	50 min
Apr 30, 7:32 AM CDT	Special Weather Statement	OUN	Johnston, Love, Marshall, Murray, Pontotoc	43 min
Apr 30, 8:05 AM CDT	Flash Flood Warning	OUN	Cleveland, Lincoln, Oklahoma, Pottawatomie	7 hr
Apr 30, 8:08 AM CDT	Special Weather Statement	OUN	Coal, Hughes, Johnston, Pontotoc, Seminole	67 min
Apr 30, 8:10 AM CDT	River Flood Advisory	OUN	Oklahoma	6 hr
Apr 30, 8:10 AM CDT	River Flood Advisory	OUN	Canadian, Oklahoma	25 hr
Apr 30, 8:11 AM CDT	River Flood Warning	OUN	Lincoln, Oklahoma, Pottawatomie	30 hr
Apr 30, 8:12 AM CDT	River Flood Advisory	OUN	Blaine, Caddo, Canadian, Grady	25 hr
Apr 30, 8:31 AM CDT	Special Weather Statement	OUN	Atoka, Bryan, Johnston, Marshall	59 min
Apr 30, 8:45 AM CDT	River Flood Warning	OUN	Garvin, Murray	18 hr
Apr 30, 8:59 AM CDT	Areal Flood Warning	OUN	Caddo, Comanche, Cotton, Grady, Jackson, Jefferson and 3 more	34 hr
Apr 30, 9:07 AM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, Logan, McClain, Oklahoma	3 hr
Apr 30, 9:10 AM CDT	Special Weather Statement	OUN	Coal, Hughes, Seminole	65 min

Nearby

Flash Flood Warnings in Oklahoma, 2025 Every flash flood 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.