Alert archive / Texas / Flash Flood Warnings in 2023

Flash Flood Warning 22, NWS Fort Worth, TX

October 4, 2023Dallas County, Rockwall County, Texas

NWS Fort Worth, TX issued this flash flood warning at Oct 4, 2023, 9:06 PM CDT for Dallas County, Rockwall County, 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
Oct 4, 2023, 9:06 PM CDT (02:06 UTC)
Expired
Oct 5, 2023, 12:15 AM CDT
In force
3 hr
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Flood severity
None

Counties Dallas County, TX, Rockwall County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 72 km from the middle of the area, began a volume at 02:08 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 00:00Z, 2.1 hours before the alert went out and 65 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 00:00Z on 2023-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1617 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2023-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
1617 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1748 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.2
Supercell composite
5.5

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 4, 7:14 PM CDTSevere Thunderstorm WarningFWDCollin, Cooke, Denton, Grayson46 min
Oct 4, 7:16 PM CDTSevere Thunderstorm WarningFWDFannin59 min
Oct 4, 7:37 PM CDTSpecial Weather StatementFWDJack53 min
Oct 4, 7:47 PM CDTFlash Flood WarningFWDGrayson4 hr
Oct 4, 7:50 PM CDTSevere Thunderstorm WarningFWDJack, Palo Pinto, Parker, Wise55 min
Oct 4, 7:55 PM CDTSevere Thunderstorm WarningFWDCollin, Denton65 min
Oct 4, 8:02 PM CDTSevere Thunderstorm WarningFWDLamar30 min
Oct 4, 8:26 PM CDTSevere Thunderstorm Warning Considerable damage threatFWDParker, Tarrant49 min
Oct 4, 9:04 PM CDTSevere Thunderstorm WarningFWDDelta, Hopkins, Hunt, Rains56 min
Oct 4, 9:12 PM CDTSevere Thunderstorm WarningFWDDallas, Ellis, Johnson, Tarrant63 min
Oct 4, 9:19 PM CDTFlash Flood WarningFWDTarrant4 hr
Oct 4, 9:42 PM CDTTornado WarningFWDDallas, Ellis48 min
Oct 4, 9:44 PM CDTSevere Thunderstorm WarningFWDDelta, Hopkins, Rains61 min
Oct 4, 9:57 PM CDTFlash Flood WarningFWDCollin, Hunt3 hr
Oct 4, 9:58 PM CDTSevere Thunderstorm WarningFWDEllis, Hill, Johnson, Navarro62 min
Oct 4, 10:29 PM CDTSevere Thunderstorm WarningFWDEllis, Henderson, Kaufman, Navarro61 min
Oct 4, 10:36 PM CDTAreal Flood AdvisoryFWDDallas, Ellis, Johnson3 hr
Oct 4, 10:56 PM CDTSevere Thunderstorm WarningFWDEllis, Hill, Limestone, Navarro64 min
Oct 4, 11:07 PM CDTAreal Flood AdvisoryFWDKaufman3 hr
Oct 4, 11:13 PM CDTRiver Flood WarningFWDDallas2 hr
Oct 4, 11:24 PM CDTSpecial Weather StatementFWDMcLennan36 min
Oct 4, 11:30 PM CDTSevere Thunderstorm WarningFWDAnderson, Henderson, Kaufman, Navarro, Van Zandt60 min
Oct 4, 11:41 PM CDTSpecial Weather StatementFWDVan Zandt34 min
Oct 4, 11:52 PM CDTSevere Thunderstorm WarningFWDAnderson, Freestone, Henderson, Navarro38 min
Oct 4, 11:55 PM CDTSpecial Weather StatementFWDFalls, Freestone, Limestone, McLennan50 min
Oct 5, 12:30 AM CDTSpecial Weather StatementFWDAnderson45 min
Oct 5, 1:13 AM CDTSpecial Weather StatementFWDAnderson47 min
Oct 5, 1:35 AM CDTSevere Thunderstorm WarningFWDAnderson25 min
Oct 5, 1:44 AM CDTAreal Flood AdvisoryFWDAnderson106 min
Oct 5, 2:16 AM CDTSpecial Weather StatementFWDLeon44 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.