Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 405, NWS Amarillo, TX

October 4, 20234 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Oct 4, 2023, 1:08 PM CDT for 4 counties in Texas. It was in force for 67 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, 1:08 PM CDT (18:08 UTC)
Expired
Oct 4, 2023, 2:15 PM CDT
In force
67 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Collingsworth County, TX, Donley County, TX, Gray County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 106 km from the middle of the area, began a volume at 18:08 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

Norman, OK (KOUN), launched 12:00Z, 6.1 hours before the alert went out and 285 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 Amarillo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 3, 8:11 PM CDTSpecial Weather StatementAMAArmstrong49 min
Oct 3, 8:49 PM CDTSpecial Weather StatementAMALipscomb26 min
Oct 3, 8:54 PM CDTSevere Thunderstorm WarningAMALipscomb, Ochiltree66 min
Oct 3, 8:56 PM CDTSevere Thunderstorm WarningAMADonley64 min
Oct 3, 9:08 PM CDTSpecial Weather StatementAMARoberts37 min
Oct 3, 9:39 PM CDTSevere Thunderstorm WarningAMARoberts37 min
Oct 3, 9:51 PM CDTSevere Thunderstorm WarningAMACollingsworth, Donley16 min
Oct 3, 10:00 PM CDTSpecial Weather StatementAMALipscomb30 min
Oct 4, 4:23 AM CDTSpecial Weather StatementAMAHansford37 min
Oct 4, 5:38 AM CDTSpecial Weather StatementAMALipscomb37 min
Oct 4, 9:29 AM CDTSpecial Weather StatementAMADeaf Smith31 min
Oct 4, 9:59 AM CDTSpecial Weather StatementAMARandall31 min
Oct 4, 10:32 AM CDTSpecial Weather StatementAMARandall43 min
Oct 4, 11:20 AM CDTSpecial Weather StatementAMAArmstrong40 min
Oct 4, 11:41 AM CDTSpecial Weather StatementAMARandall34 min
Oct 4, 11:59 AM CDTSpecial Weather StatementAMAGray31 min
Oct 4, 12:19 PM CDTSpecial Weather StatementAMARandall26 min
Oct 4, 12:53 PM CDTSpecial Weather StatementAMADonley37 min
Oct 4, 2:07 PM CDTSevere Thunderstorm WarningAMACollingsworth38 min
Oct 3, 8:58 PM CDTSpecial Weather StatementAMABeaver32 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.