Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 166, NWS Houston/Galveston, TX

September 14, 2023Harris County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Sep 14, 2023, 2:46 PM CDT for Harris County, Texas. It was in force for 29 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
Sep 14, 2023, 2:46 PM CDT (19:46 UTC)
Expired
Sep 14, 2023, 3:15 PM CDT
In force
29 min
Issued by
NWS Houston/Galveston, TX
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

County Harris County, TX

The radar

The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 19:45 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 7.8 hours before the alert went out and 213 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, Lake Charles Mun, LA at 12:00Z on 2023-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 477 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, Lake Charles Mun, LA at 12:00Z on 2023-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.193958Sfc1 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
477 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
813 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 13, 8:18 PM CDTAreal Flood AdvisoryHGXGalveston117 min
Sep 13, 10:39 PM CDTSpecial Marine WarningHGX36 min
Sep 13, 11:17 PM CDTSpecial Marine WarningHGX28 min
Sep 14, 1:56 PM CDTSpecial Weather StatementHGXHarris34 min
Sep 14, 2:20 PM CDTSevere Thunderstorm WarningHGXHarris, Montgomery25 min
Sep 14, 3:14 PM CDTSevere Thunderstorm WarningHGXChambers, Harris14 min
Sep 14, 3:23 PM CDTSevere Thunderstorm WarningHGXJackson25 min
Sep 14, 3:27 PM CDTSpecial Marine WarningHGX33 min
Sep 14, 3:28 PM CDTSpecial Weather StatementHGXChambers47 min
Sep 14, 3:31 PM CDTSpecial Marine WarningHGX89 min
Sep 14, 3:45 PM CDTSpecial Weather StatementHGXSan Jacinto45 min
Sep 14, 4:04 PM CDTSpecial Marine WarningHGX56 min
Sep 14, 4:17 PM CDTSpecial Weather StatementHGXGrimes28 min
Sep 14, 4:18 PM CDTSpecial Marine WarningHGX42 min
Sep 14, 4:45 PM CDTSpecial Weather StatementHGXWaller30 min
Sep 14, 5:25 PM CDTAreal Flood AdvisoryHGXBrazoria, Fort Bend110 min
Sep 14, 5:43 PM CDTSpecial Weather StatementHGXBurleson, Washington32 min
Sep 14, 5:51 PM CDTSevere Thunderstorm WarningHGXColorado24 min
Sep 14, 6:18 PM CDTSpecial Weather StatementHGXColorado27 min
Sep 14, 6:48 PM CDTSpecial Weather StatementHGXColorado27 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.