Alert archive / Oklahoma / Flash Flood Warnings in 2026

Flash Flood Warning 85, NWS Norman, OK

August 22, 2026Pottawatomie County, Oklahoma

NWS Norman, OK issued this flash flood warning at Aug 22, 2026, 7:38 AM CDT for Pottawatomie County, 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
Aug 22, 2026, 7:38 AM CDT (12:38 UTC)
Expired
Aug 22, 2026, 10:30 AM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Storm-based polygon
Flood severity
None

County Pottawatomie County, OK

The radar

The Norman radar (KTLX), 33 km from the middle of the area, began a volume at 12:38 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

Springfield, MO (KSGF), launched 12:00Z, 0.6 hours before the alert went out and 340 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2026-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1982 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2026-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1982 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1422 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.7

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 3:40 AM CDTSpecial Weather StatementOUNNoble35 min
Aug 22, 4:21 AM CDTSpecial Weather StatementOUNKay24 min
Aug 22, 5:01 AM CDTAreal Flood AdvisoryOUNNoble, Payne5 hr
Aug 22, 5:08 AM CDTSpecial Weather StatementOUNPayne37 min
Aug 22, 5:10 AM CDTSpecial Weather StatementOUNCleveland35 min
Aug 22, 5:14 AM CDTSpecial Weather StatementOUNPottawatomie31 min
Aug 22, 5:33 AM CDTSpecial Weather StatementOUNKay42 min
Aug 22, 5:44 AM CDTSevere Thunderstorm WarningOUNCleveland, Pottawatomie31 min
Aug 22, 6:03 AM CDTAreal Flood AdvisoryOUNCleveland, Pottawatomie3 hr
Aug 22, 6:07 AM CDTSevere Thunderstorm WarningOUNCleveland, McClain, Pontotoc, Pottawatomie53 min
Aug 22, 6:25 AM CDTSpecial Weather StatementOUNPottawatomie35 min
Aug 22, 6:47 AM CDTSevere Thunderstorm WarningOUNPottawatomie, Seminole43 min
Aug 22, 6:47 AM CDTSevere Thunderstorm WarningOUNNoble, Payne43 min
Aug 22, 7:19 AM CDTAreal Flood AdvisoryOUNPottawatomie3 hr
Aug 22, 7:27 AM CDTSevere Thunderstorm WarningOUNNoble, Payne32 min
Aug 22, 7:29 AM CDTSpecial Weather StatementOUNPottawatomie31 min
Aug 22, 7:37 AM CDTAreal Flood WarningOUNPottawatomie1 min
Aug 22, 1:48 PM CDTHeat AdvisoryOUNAlfalfa, Atoka, Beckham, Blaine, Bryan, Caddo and 38 more30 hr
Aug 22, 6:29 PM CDTSpecial Weather StatementOUNJackson31 min
Aug 22, 4:37 PM CDTSpecial Weather StatementOUNHardeman23 min
Aug 22, 4:57 PM CDTSpecial Weather StatementOUNFoard, Hardeman33 min
Aug 22, 5:04 PM CDTSevere Thunderstorm WarningOUNFoard, Hardeman26 min
Aug 22, 5:29 PM CDTSpecial Weather StatementOUNFoard, Hardeman31 min
Aug 22, 5:36 PM CDTSevere Thunderstorm WarningOUNFoard, Hardeman24 min
Aug 22, 5:57 PM CDTSevere Thunderstorm WarningOUNFoard, Hardeman33 min
Aug 22, 5:59 PM CDTSpecial Weather StatementOUNKnox31 min
Aug 22, 6:25 PM CDTSpecial Weather StatementOUNKnox, Wilbarger35 min
Aug 22, 6:53 PM CDTSpecial Weather StatementOUNBaylor, Knox, Wilbarger37 min

Nearby

Flash Flood Warnings in Oklahoma, 2026Every flash flood 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.