Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 192, NWS Fort Worth, TX

August 29, 20204 counties in Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Aug 29, 2020, 8:07 PM CDT for 4 counties in Texas. It was in force for 37 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
Aug 29, 2020, 8:07 PM CDT (01:07 UTC)
Expired
Aug 29, 2020, 8:44 PM CDT
In force
37 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Dallas County, TX, Ellis County, TX, Johnson County, TX, Tarrant County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 23 km from the middle of the area, began a volume at 01:07 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, 1.1 hours before the alert went out and 37 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 2020-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1600 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 2020-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939Sfc1 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
1600 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
2850 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.5

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 7:10 PM CDTSpecial Weather StatementFWDEastland35 min
Aug 29, 7:11 PM CDTSpecial Weather StatementFWDLamar34 min
Aug 29, 7:15 PM CDTSevere Thunderstorm WarningFWDParker, Tarrant60 min
Aug 29, 7:17 PM CDTSpecial Weather StatementFWDLamar28 min
Aug 29, 7:28 PM CDTAreal Flood AdvisoryFWDLamar2 hr
Aug 29, 7:40 PM CDTAreal Flood AdvisoryFWDParker, Tarrant3 hr
Aug 29, 7:46 PM CDTSevere Thunderstorm WarningFWDDallas29 min
Aug 29, 8:16 PM CDTSpecial Weather StatementFWDDenton29 min
Aug 29, 8:39 PM CDTSpecial Weather StatementFWDGrayson36 min
Aug 29, 8:58 PM CDTSpecial Weather StatementFWDHood32 min
Aug 29, 9:02 PM CDTSevere Thunderstorm WarningFWDGrayson58 min
Aug 29, 9:13 PM CDTSpecial Weather StatementFWDFannin32 min
Aug 29, 10:57 PM CDTSpecial Weather StatementFWDLamar48 min
Aug 29, 11:53 PM CDTSpecial Weather StatementFWDLamar52 min
Aug 30, 12:30 AM CDTSpecial Weather StatementFWDDelta45 min
Aug 30, 12:42 AM CDTSevere Thunderstorm WarningFWDDelta, Hopkins, Lamar49 min
Aug 30, 1:36 AM CDTSpecial Weather StatementFWDHopkins24 min
Aug 30, 2:59 AM CDTSpecial Weather StatementFWDMontague31 min
Aug 30, 3:53 AM CDTSpecial Weather StatementFWDCooke, Denton, Grayson52 min
Aug 30, 4:39 AM CDTSpecial Weather StatementFWDCollin, Denton, Grayson66 min
Aug 30, 4:59 AM CDTSpecial Weather StatementFWDDallas46 min
Aug 30, 6:49 AM CDTAreal Flood AdvisoryFWDCollin, Dallas3 hr
Aug 30, 7:33 AM CDTRiver Flood WarningFWDDallas6 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2020Every severe thunderstorm warning in 2020

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.