Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 378, NWS Fort Worth, TX

December 23, 2015Fannin County, Hunt County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Dec 23, 2015, 4:32 AM CST for Fannin County, Hunt County, Texas. It was in force for 31 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
Dec 23, 2015, 4:32 AM CST (10:32 UTC)
Expired
Dec 23, 2015, 5:03 AM CST
In force
31 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Fannin County, TX, Hunt County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 143 km from the middle of the area, began a volume at 10:31 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, 10.5 hours before the alert went out and 126 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 2015-12-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2015-12-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1757 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
311 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
Dec 23, 4:14 AM CSTSpecial Weather StatementFWDHunt46 min
Dec 23, 4:56 AM CSTSevere Thunderstorm WarningFWDLamar64 min
Dec 23, 5:07 AM CSTSevere Thunderstorm WarningFWDDelta, Lamar53 min
Dec 23, 5:30 AM CSTSpecial Weather StatementFWDHunt30 min
Dec 23, 5:44 AM CSTSpecial Weather StatementFWDRains31 min
Dec 23, 6:14 AM CSTSpecial Weather StatementFWDHopkins31 min
Dec 23, 6:20 AM CSTSpecial Weather StatementFWDVan Zandt40 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015Every severe thunderstorm warning in 2015

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.