Alert archive / Texas / Flash Flood Warnings in 2023

Flash Flood Warning 4, NWS Norman, OK

April 26, 20234 counties in Texas

NWS Norman, OK issued this flash flood warning at Apr 26, 2023, 8:17 AM CDT for 4 counties in Texas. 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 26, 2023, 8:17 AM CDT (13:17 UTC)
Expired
Apr 26, 2023, 11:30 AM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Storm-based polygon
Flood severity
None

Counties Baylor County, TX, Foard County, TX, Knox County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 77 km from the middle of the area, began a volume at 13:19 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, 1.3 hours before the alert went out and 232 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, Fort Worth, TX at 12:00Z on 2023-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 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, Fort Worth, TX at 12:00Z on 2023-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 276 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
31 J/kg
Mixed-layer CIN
-393 J/kg
Mixed-layer LCL
671 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
276 m²/s²
0-3 km storm-relative helicity
254 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 5:25 AM CDTSpecial Weather StatementOUNJackson35 min
Apr 26, 6:57 AM CDTAreal Flood AdvisoryOUNTillman3 hr
Apr 26, 8:11 AM CDTRiver Flood AdvisoryOUNPottawatomie, Seminole12 hr
Apr 26, 8:39 AM CDTAreal Flood AdvisoryOUNCotton, Tillman81 min
Apr 26, 8:58 AM CDTSpecial Weather StatementOUNJefferson32 min
Apr 26, 9:05 AM CDTSpecial Weather StatementOUNJefferson25 min
Apr 26, 9:35 AM CDTSpecial Weather StatementOUNJefferson25 min
Apr 26, 10:01 AM CDTSpecial Weather StatementOUNCarter29 min
Apr 26, 10:16 AM CDTSpecial Weather StatementOUNLove29 min
Apr 26, 10:44 AM CDTSpecial Weather StatementOUNLove31 min
Apr 26, 11:51 AM CDTSpecial Weather StatementOUNBryan24 min
Apr 25, 10:52 PM CDTSpecial Weather StatementOUNHardeman38 min
Apr 25, 11:36 PM CDTSpecial Weather StatementOUNWilbarger39 min
Apr 25, 11:47 PM CDTSpecial Weather StatementOUNKnox43 min
Apr 25, 11:56 PM CDTSpecial Weather StatementOUNBaylor34 min
Apr 26, 12:13 AM CDTSpecial Weather StatementOUNWichita47 min
Apr 26, 12:31 AM CDTSpecial Weather StatementOUNBaylor44 min
Apr 26, 12:33 AM CDTSpecial Weather StatementOUNWichita42 min
Apr 26, 5:42 AM CDTSevere Thunderstorm WarningOUNFoard, Hardeman48 min
Apr 26, 5:59 AM CDTSpecial Weather StatementOUNFoard31 min
Apr 26, 6:32 AM CDTSpecial Weather StatementOUNBaylor, Knox, Wilbarger28 min
Apr 26, 7:09 AM CDTSpecial Weather StatementOUNWichita36 min
Apr 26, 9:01 AM CDTSpecial Weather StatementOUNBaylor29 min
Apr 26, 9:24 AM CDTSpecial Weather StatementOUNArcher36 min
Apr 26, 9:59 AM CDTSpecial Weather StatementOUNClay31 min
Apr 26, 10:26 AM CDTSpecial Weather StatementOUNClay19 min

Nearby

Flash Flood Warnings in Texas, 2023Every flash flood warning in 2023

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.