Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 7, NWS Houston/Galveston, TX

January 6, 2021Brazos County, Burleson County, Grimes County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jan 6, 2021, 2:23 PM CST for Brazos County, Burleson County, Grimes County, 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 outline as issued.

The facts

Issued
Jan 6, 2021, 2:23 PM CST (20:23 UTC)
Expired
Jan 6, 2021, 3:00 PM CST
In force
37 min
Issued by
NWS Houston/Galveston, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Brazos County, TX, Burleson County, TX, Grimes County, TX

The watch it was issued in

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

IssuedProductOfficeLasted
Jan 6, 12:59 PM CSTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 8.4 hours before the alert went out and 276 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 12:00Z on 2021-01-06Temperature 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 12:00Z on 2021-01-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 314 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
623 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
314 m²/s²
0-3 km storm-relative helicity
313 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

783 
WUUS54 KHGX 062023
SVRHGX
TXC041-051-185-062100-
/O.NEW.KHGX.SV.W.0007.210106T2023Z-210106T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Houston/Galveston TX
223 PM CST Wed Jan 6 2021

The National Weather Service in League City has issued a

* Severe Thunderstorm Warning for...
  West central Grimes County in southeastern Texas...
  Eastern Burleson County in southeastern Texas...
  Southeastern Brazos County in southeastern Texas...

* Until 300 PM CST.

* At 222 PM CST, a severe thunderstorm was located near College
  Station, moving east at 30 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  College Station, Millican, Anderson, Wellborn and Carlos. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3044 9632 3059 9634 3072 9603 3046 9597
TIME...MOT...LOC 2022Z 257DEG 28KT 3053 9630 

HAIL...1.00IN
WIND...<50MPH
 
$$
Cady

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 6, 10:46 AM CSTSmall Craft AdvisoryHGX28 hr
Jan 6, 12:22 PM CSTSpecial Weather StatementHGXBrazos38 min
Jan 6, 12:48 PM CSTSevere Thunderstorm WarningHGXBrazos, Madison42 min
Jan 6, 1:14 PM CSTSevere Thunderstorm WarningHGXHouston, Madison46 min
Jan 6, 1:23 PM CSTSevere Thunderstorm WarningHGXBurleson37 min
Jan 6, 1:51 PM CSTSevere Thunderstorm WarningHGXHouston, Madison24 min
Jan 6, 1:57 PM CSTSevere Thunderstorm WarningHGXBrazos, Burleson33 min
Jan 6, 2:14 PM CSTSevere Thunderstorm WarningHGXHouston, Madison31 min
Jan 6, 2:35 PM CSTSpecial Weather StatementHGXColorado40 min
Jan 6, 2:45 PM CSTSevere Thunderstorm WarningHGXHouston, Trinity30 min
Jan 6, 2:55 PM CSTSevere Thunderstorm WarningHGXGrimes, Montgomery, Walker35 min
Jan 6, 2:56 PM CSTSpecial Weather StatementHGXWashington49 min
Jan 6, 3:09 PM CSTSevere Thunderstorm WarningHGXHouston, Trinity36 min
Jan 6, 3:18 PM CSTSevere Thunderstorm WarningHGXAustin, Grimes, Harris, Montgomery, Polk, San Jacinto and 3 more42 min
Jan 6, 3:44 PM CSTSpecial Weather StatementHGXTrinity16 min
Jan 6, 3:53 PM CSTSpecial Weather StatementHGXWharton52 min
Jan 6, 3:58 PM CSTSevere Thunderstorm WarningHGXLiberty, Montgomery, Polk, San Jacinto, Walker47 min
Jan 6, 4:20 PM CSTSevere Thunderstorm WarningHGXFort Bend, Wharton40 min
Jan 6, 4:26 PM CSTSpecial Weather StatementHGXFort Bend, Harris, Liberty64 min
Jan 6, 4:41 PM CSTSpecial Weather StatementHGXPolk49 min
Jan 6, 4:54 PM CSTAreal Flood AdvisoryHGXHarris51 min
Jan 6, 4:56 PM CSTSevere Thunderstorm WarningHGXBrazoria, Fort Bend34 min
Jan 6, 5:23 PM CSTSevere Thunderstorm WarningHGXBrazoria, Fort Bend, Harris22 min
Jan 6, 5:23 PM CSTSevere Thunderstorm WarningHGXBrazoria, Fort Bend, Harris37 min
Jan 6, 5:30 PM CSTSpecial Marine WarningHGX2 hr
Jan 6, 5:43 PM CSTSpecial Weather StatementHGXBrazoria, Chambers, Galveston47 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning in 2021

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.