Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 1, NWS Austin/San Antonio, TX

January 6, 2021Lee County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jan 6, 2021, 1:26 PM CST for Lee County, Texas. It was in force for 17 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, 1:26 PM CST (19:26 UTC)
Expired
Jan 6, 2021, 1:43 PM CST
In force
17 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

County Lee 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, 7.4 hours before the alert went out and 277 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°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.

796 
WUUS54 KEWX 061926
SVREWX
TXC287-062000-
/O.NEW.KEWX.SV.W.0001.210106T1926Z-210106T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
126 PM CST Wed Jan 6 2021

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Northeastern Lee County in south central Texas...

* Until 200 PM CST.

* At 125 PM CST, a severe thunderstorm was located over Dime Box, or
  10 miles east of Lexington, moving east at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Dime Box, Lake Somerville State Park & Trailway and Old Dime Box. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3029 9684 3034 9691 3041 9694 3045 9687
      3043 9687 3043 9685 3039 9679 3032 9674
      3032 9669
TIME...MOT...LOC 1925Z 251DEG 22KT 3036 9685 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

HAMPSHIRE
1 follow-up statement
677 
WWUS54 KEWX 061943
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
143 PM CST Wed Jan 6 2021

TXC287-061953-
/O.CAN.KEWX.SV.W.0001.000000T0000Z-210106T2000Z/
Lee TX-
143 PM CST Wed Jan 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LEE COUNTY IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 700 PM CST for
south central Texas.

LAT...LON 3029 9684 3034 9691 3041 9694 3045 9687
      3043 9687 3043 9685 3039 9679 3032 9674
      3032 9669
TIME...MOT...LOC 1942Z 251DEG 22KT 3040 9672 

$$

HAMPSHIRE

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 6, 12:41 PM CSTSpecial Weather StatementEWXLee49 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.