Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 1, NWS Fort Worth, TX

January 24, 2021Delta County, Hopkins County, Lamar County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jan 24, 2021, 4:36 PM CST for Delta County, Hopkins County, Lamar County, Texas. It was in force for 24 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 24, 2021, 4:36 PM CST (22:36 UTC)
Expired
Jan 24, 2021, 5:00 PM CST
In force
24 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Delta County, TX, Hopkins County, TX, Lamar County, TX

The radar

The Shreveport radar (KSHV), 185 km from the middle of the area, began a volume at 22:37 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 12:00Z, 10.6 hours before the alert went out and 178 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 2021-01-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 32 joules per kilogram.LCLLFCEL10008507005003002001001 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 2021-01-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 245 square meters per square second.1939587897117Sfc1 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
32 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
445 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
245 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

290 
WUUS54 KFWD 242236
SVRFWD
TXC119-223-277-242300-
/O.NEW.KFWD.SV.W.0001.210124T2236Z-210124T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
436 PM CST Sun Jan 24 2021

The National Weather Service in Fort Worth has issued a

* Severe Thunderstorm Warning for...
  Northeastern Hopkins County in north central Texas...
  Southeastern Lamar County in north central Texas...
  Northeastern Delta County in north central Texas...

* Until 500 PM CST.

* At 435 PM CST, a severe thunderstorm was located near Cooper Lake
  Park South Sulphur, or 15 miles north of Sulphur Springs, moving
  northeast at 45 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is possible.

* Locations impacted include...
  Deport and Tira. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection get inside a sturdy structure and stay away from
windows.

&&

LAT...LON 3324 9559 3344 9569 3360 9531 3334 9531
TIME...MOT...LOC 2235Z 243DEG 38KT 3336 9555 

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

12
1 follow-up statement
105 
WWUS54 KFWD 242257
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
457 PM CST Sun Jan 24 2021

TXC119-223-277-242307-
/O.EXP.KFWD.SV.W.0001.000000T0000Z-210124T2300Z/
Hopkins TX-Lamar TX-Delta TX-
457 PM CST Sun Jan 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HOPKINS...
SOUTHEASTERN LAMAR AND NORTHEASTERN DELTA COUNTIES WILL EXPIRE AT 500
PM CST...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 3324 9559 3344 9569 3360 9531 3334 9531
TIME...MOT...LOC 2257Z 243DEG 38KT 3343 9539 

$$

12

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 24, 2:41 PM CSTSpecial Weather StatementFWDCollin34 min
Jan 24, 3:15 PM CSTSpecial Weather StatementFWDFannin45 min
Jan 24, 4:18 PM CSTSpecial Weather StatementFWDDelta42 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; radar from the NEXRAD Level II archive.