Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 138, NWS Shreveport, LA

May 10, 20215 counties in Texas

NWS Shreveport, LA issued this severe thunderstorm warning at May 10, 2021, 1:44 PM CDT for 5 counties in Texas. It was in force for 46 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 10, 2021, 1:44 PM CDT (18:44 UTC)
Expired: May 10, 2021, 2:30 PM CDT
In force: 46 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Camp County, TX, Cass County, TX, Marion County, TX, Morris County, TX, Titus County, TX

The radar

The Shreveport radar (KSHV), 96 km from the middle of the area, began a volume at 18:44 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.

What was reported inside it

Time	Report	Where	Remark
May 10, 1:54 PM CDT	HAIL 1.5	3 Ne Daingerfield, TX	HALF DOLLAR TO PING PONG SIZE HAIL AND 1.24 INCHES OF RAIN IN 55 MINUTES.
May 10, 1:55 PM CDT	HAIL 1.5	Hughes Springs, TX
May 10, 1:59 PM CDT	HAIL 1.75	1 Nw Hughes Springs, TX	REPORT FROM MPING: GOLF BALL (1.75 IN.).
May 10, 2:02 PM CDT	HAIL 1.5	1 Nw Hughes Springs, TX	REPORT FROM MPING: PING PONG BALL (1.50 IN.).
May 10, 2:25 PM CDT	HAIL 1.75	8 Ese Linden, TX	KILDARE COMMUNITY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 6.7 hours before the alert went out and 99 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 257 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 552 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted.

978 
WUUS54 KSHV 101844
SVRSHV
TXC063-067-315-343-449-101930-
/O.NEW.KSHV.SV.W.0138.210510T1844Z-210510T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
144 PM CDT Mon May 10 2021

The National Weather Service in Shreveport has issued a

* Severe Thunderstorm Warning for...
  Northeastern Marion County in northeastern Texas...
  Cass County in northeastern Texas...
  Morris County in northeastern Texas...
  Southeastern Titus County in northeastern Texas...
  Eastern Camp County in northeastern Texas...

* Until 230 PM CDT.

* At 143 PM CDT, a severe thunderstorm was located near Hughes
  Springs, or 23 miles west of Atlanta, moving east at 35 mph.

  HAZARD...Golf ball size hail and 60 mph wind gusts.

  SOURCE...Trained weather spotters. At 130 PM CDT, half dollar size 
           hail was reported near Daingerfield.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Atlanta, Daingerfield, Linden, Hughes Springs, Lone Star, Queen
  City, Naples, Omaha, Bivins, Cason, Lodi, Cookville, Smithland,
  Rocky Branch, McLeod, Kildare, Jenkins, Fairview, Avinger and
  Bloomburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is a dangerous storm. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to shelter inside a strong building,  and stay away from
windows.

&&

LAT...LON 3323 9486 3316 9404 3280 9405 3294 9493
TIME...MOT...LOC 1843Z 281DEG 30KT 3299 9453 

HAIL...1.75IN
WIND...60MPH
 
$$

19

1 follow-up statement

121 
WWUS54 KSHV 101919
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
219 PM CDT Mon May 10 2021

TXC063-449-101928-
/O.CAN.KSHV.SV.W.0138.000000T0000Z-210510T1930Z/
Titus TX-Camp TX-
219 PM CDT Mon May 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TITUS AND EASTERN
CAMP COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3320 9481 3313 9404 3280 9405 3291 9472
      3292 9476 3296 9479 3298 9482
TIME...MOT...LOC 1918Z 281DEG 30KT 3293 9419 

$$

TXC067-315-343-101930-
/O.CON.KSHV.SV.W.0138.000000T0000Z-210510T1930Z/
Marion TX-Cass TX-Morris TX-
219 PM CDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT
FOR NORTHEASTERN MARION...CASS AND MORRIS COUNTIES...

At 218 PM CDT, a severe thunderstorm was located near Kildare, or 12
miles south of Atlanta, moving east at 35 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Atlanta, Daingerfield, Linden, Hughes Springs, Lone Star, Queen City,
Omaha, Bivins, Lodi, Jenkins, Smithland, Rocky Branch, McLeod,
Kildare, Fairview, Avinger, Bloomburg, Marietta, Red Hill and Pruett.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is a dangerous storm. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.

&&

LAT...LON 3320 9481 3313 9404 3280 9405 3291 9472
      3292 9476 3296 9479 3298 9482
TIME...MOT...LOC 1918Z 281DEG 30KT 3293 9419 

HAIL...1.75IN
WIND...60MPH
 
$$

19

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 9, 8:20 PM CDT	Special Weather Statement	SHV	Angelina	40 min
May 9, 8:23 PM CDT	River Flood Warning	SHV	Anderson, Cherokee, Houston, Trinity	35 days
May 9, 8:26 PM CDT	River Flood Warning	SHV	Sabine, San Augustine	3 days
May 9, 11:10 PM CDT	Special Weather Statement	SHV	Nacogdoches	50 min
May 10, 12:04 AM CDT	Special Weather Statement	SHV	Angelina	41 min
May 10, 12:15 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Franklin, Titus, Upshur, Wood	45 min
May 10, 12:41 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Franklin, Morris, Red River, Titus	49 min
May 10, 1:00 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Cass, Marion, Morris, Titus, Upshur	45 min
May 10, 1:08 PM CDT	Special Weather Statement	SHV	Franklin	37 min
May 10, 1:29 PM CDT	Special Weather Statement	SHV	Titus	46 min
May 10, 2:25 PM CDT	Severe Thunderstorm Warning	SHV	Cass, Harrison, Marion	65 min
May 10, 3:06 PM CDT	Special Weather Statement	SHV	Red River	39 min
May 10, 5:20 PM CDT	Special Weather Statement	SHV	Harrison	40 min
May 10, 6:29 PM CDT	Special Weather Statement	SHV	Morris, Titus	46 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.