Alert archive / Texas / Flash Flood Warnings in 2025

Flash Flood Warning 116, NWS Fort Worth, TX

August 12, 2025Fannin County, Texas

NWS Fort Worth, TX issued this flash flood warning at Aug 12, 2025, 1:59 AM CDT for Fannin County, Texas. It was in force for 2 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 12, 2025, 1:59 AM CDT (06:59 UTC)
Expired
Aug 12, 2025, 4:00 AM CDT
In force
2 hr
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Flood severity
None

County Fannin County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 159 km from the middle of the area, began a volume at 07:01 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 00:00Z, 7.0 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2025-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 114 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2025-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 square meters per square second.1939Sfc1 km3 km6 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
114 J/kg
Mixed-layer CIN
-180 J/kg
Mixed-layer LCL
1187 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 11, 10:07 PM CDTAreal Flood AdvisoryFWDFannin3 hr
Aug 11, 10:17 PM CDTSpecial Weather StatementFWDFannin28 min
Aug 11, 11:18 PM CDTFlash Flood WarningFWDFannin3 hr
Aug 11, 11:48 PM CDTSpecial Weather StatementFWDLamar42 min
Aug 11, 11:54 PM CDTAreal Flood AdvisoryFWDLamar3 hr
Aug 11, 11:56 PM CDTSpecial Weather StatementFWDCooke64 min
Aug 12, 1:51 AM CDTAreal Flood AdvisoryFWDGrayson2 hr
Aug 12, 4:42 AM CDTAreal Flood AdvisoryFWDJack11 min
Aug 12, 4:53 AM CDTFlash Flood WarningFWDJack4 hr
Aug 12, 6:17 AM CDTFlash Flood WarningFWDPalo Pinto, Parker3 hr
Aug 12, 8:57 AM CDTAreal Flood AdvisoryFWDJack, Palo Pinto, Parker, Young3 hr
Aug 12, 4:14 PM CDTSpecial Weather StatementFWDJohnson46 min
Aug 12, 4:27 PM CDTSpecial Weather StatementFWDCoryell48 min
Aug 12, 5:58 PM CDTSpecial Weather StatementFWDNavarro47 min

Nearby

Flash Flood Warnings in Texas, 2025Every 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.