Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 545, NWS Fort Worth, TX

October 4, 2023Montague County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Oct 4, 2023, 6:00 PM CDT for Montague County, Texas. It was in force for 45 min. 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, 6:00 PM CDT (23:00 UTC)
Expired
Oct 4, 2023, 6:45 PM CDT
In force
45 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Montague County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 129 km from the middle of the area, began a volume at 23:02 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Oct 4, 2:45 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.0 hours before the alert went out and 174 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 12:00Z on 2023-10-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 727 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, Norman, OK at 12:00Z on 2023-10-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 square meters per square second.1939587897Sfc1 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
727 J/kg
Mixed-layer CIN
-180 J/kg
Mixed-layer LCL
1070 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
202 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

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, 3:08 AM CDTFlood WatchFWDDelta, Fannin, Hopkins, Hunt, Lamar, Rains21 hr
Oct 4, 4:18 PM CDTSpecial Weather StatementFWDLamar27 min
Oct 4, 4:28 PM CDTSevere Thunderstorm WarningFWDLamar47 min
Oct 4, 4:48 PM CDTSpecial Weather StatementFWDCooke27 min
Oct 4, 5:50 PM CDTSpecial Weather StatementFWDMontague55 min
Oct 4, 6:21 PM CDTAreal Flood AdvisoryFWDMontague3 hr
Oct 4, 6:22 PM CDTSpecial Weather StatementFWDYoung38 min
Oct 4, 6:52 PM CDTAreal Flood AdvisoryFWDCooke, Grayson4 hr
Oct 4, 6:57 PM CDTSevere Thunderstorm WarningFWDGrayson18 min

Nearby

Severe Thunderstorm Warnings in Texas, 2023Every severe thunderstorm 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.