Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 18, NWS Corpus Christi, TX

May 11, 2021Duval County, Webb County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at May 11, 2021, 9:15 PM CDT for Duval County, Webb County, Texas. It was in force for 45 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: May 11, 2021, 9:15 PM CDT (02:15 UTC)
Expired: May 11, 2021, 10:00 PM CDT
In force: 45 min
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Duval County, TX, Webb County, TX

The radar

The Corpus Christi radar (KCRP), 126 km from the middle of the area, began a volume at 02:17 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 11, 3:41 PM CDT	Severe Thunderstorm Watch	SPC	10 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 2.3 hours before the alert went out and 140 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: 2320 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 854 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

As transmitted.

759 
WUUS54 KCRP 120215
SVRCRP
TXC131-479-120300-
/O.NEW.KCRP.SV.W.0018.210512T0215Z-210512T0300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Corpus Christi TX
915 PM CDT Tue May 11 2021

The National Weather Service in Corpus Christi has issued a

* Severe Thunderstorm Warning for...
  Southwestern Duval County in south central Texas...
  Southeastern Webb County in south central Texas...

* Until 1000 PM CDT.

* At 914 PM CDT, a severe thunderstorm was located near Bruni, or 15
  miles northwest of Hebbronville, moving east at 20 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Bruni around 925 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

LAT...LON 2734 9900 2757 9895 2751 9848 2734 9853
      2734 9855 2736 9856 2736 9859 2734 9859
      2734 9862 2736 9863 2735 9880 2727 9880
TIME...MOT...LOC 0214Z 281DEG 19KT 2741 9891 

HAIL...1.25IN
WIND...60MPH
 
$$

PH

1 follow-up statement

669 
WWUS54 KCRP 120236
SVSCRP

Severe Weather Statement
National Weather Service Corpus Christi TX
936 PM CDT Tue May 11 2021

TXC131-479-120300-
/O.CON.KCRP.SV.W.0018.000000T0000Z-210512T0300Z/
Duval TX-Webb TX-
936 PM CDT Tue May 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR SOUTHWESTERN DUVAL AND SOUTHEASTERN WEBB COUNTIES...

At 936 PM CDT, a severe thunderstorm was located near Jim Hogg County
Airport, or 8 miles northwest of Hebbronville, moving east at 20 mph.

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

SOURCE...Radar indicated.

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.

This severe storm will be near...
  Realitos around 1015 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Corpus Christi.

&&

LAT...LON 2731 9892 2755 9882 2751 9848 2734 9853
      2734 9855 2736 9856 2736 9859 2734 9859
      2734 9862 2736 9863 2735 9880 2727 9880
TIME...MOT...LOC 0236Z 281DEG 19KT 2739 9878 

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

JCP

The office that day

Everything else NWS Corpus Christi, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 11, 7:00 PM CDT	Tornado Warning	CRP	Duval, McMullen	45 min
May 11, 7:05 PM CDT	Special Weather Statement	CRP	Webb	40 min
May 11, 7:15 PM CDT	Severe Thunderstorm Warning	CRP	La Salle, Webb	45 min
May 11, 7:19 PM CDT	Areal Flood Advisory	CRP	Duval, Live Oak, McMullen	3 hr
May 11, 7:26 PM CDT	Severe Thunderstorm Warning	CRP	Duval, Jim Wells, Live Oak, McMullen	49 min
May 11, 7:38 PM CDT	Severe Thunderstorm Warning	CRP	Webb	52 min
May 11, 8:09 PM CDT	Areal Flood Advisory	CRP	La Salle, McMullen	3 hr
May 11, 8:09 PM CDT	Tornado Warning	CRP	Duval, Jim Wells, Live Oak	51 min
May 11, 8:19 PM CDT	Severe Thunderstorm Warning	CRP	Duval, Jim Wells, Live Oak	41 min
May 11, 8:32 PM CDT	Tornado Warning	CRP	Duval	28 min
May 11, 8:47 PM CDT	Special Weather Statement	CRP	Webb	43 min
May 11, 8:52 PM CDT	Severe Thunderstorm Warning	CRP	Duval, Jim Wells, Live Oak, Nueces, San Patricio	38 min
May 11, 9:01 PM CDT	Special Weather Statement	CRP	Duval	44 min
May 11, 9:21 PM CDT	Severe Thunderstorm Warning	CRP	Duval	39 min
May 11, 9:28 PM CDT	Special Weather Statement	CRP	Jim Wells	47 min
May 11, 9:38 PM CDT	Severe Thunderstorm Warning	CRP	Jim Wells, Kleberg, Nueces	52 min
May 11, 9:43 PM CDT	Areal Flood Advisory	CRP	Duval, Jim Wells, Live Oak, McMullen, San Patricio	3 hr
May 11, 9:50 PM CDT	Severe Thunderstorm Warning	CRP	Duval	40 min
May 11, 10:13 PM CDT	Severe Thunderstorm Warning	CRP	Duval, Jim Wells, Kleberg	32 min
May 11, 10:14 PM CDT	Areal Flood Advisory	CRP	Duval, Jim Wells, Kleberg, Nueces	3 hr
May 11, 10:26 PM CDT	Tornado Warning	CRP	Jim Wells, Kleberg	34 min
May 11, 10:31 PM CDT	Special Weather Statement	CRP	Kleberg, Nueces, San Patricio	44 min
May 11, 10:45 PM CDT	Severe Thunderstorm Warning	CRP	Jim Wells, Kleberg	45 min
May 11, 10:53 PM CDT	Special Marine Warning	CRP		2 hr
May 11, 10:55 PM CDT	Areal Flood Advisory	CRP	Bee, Jim Wells, Live Oak, San Patricio	110 min
May 11, 11:06 PM CDT	Special Weather Statement	CRP	San Patricio	39 min
May 11, 11:15 PM CDT	Special Weather Statement	CRP	Kleberg	45 min
May 11, 11:25 PM CDT	Special Marine Warning	CRP		95 min
May 11, 11:32 PM CDT	Severe Thunderstorm Warning	CRP	Nueces, San Patricio	28 min
May 11, 11:56 PM CDT	Severe Thunderstorm Warning	CRP	Nueces, San Patricio	49 min
May 12, 12:08 AM CDT	Areal Flood Advisory	CRP	Duval, Jim Wells, Kleberg, Nueces	3 hr
May 12, 12:14 AM CDT	Special Weather Statement	CRP	Nueces	31 min
May 12, 12:21 AM CDT	Areal Flood Advisory	CRP	Kleberg, Nueces, San Patricio	3 hr
May 12, 12:57 AM CDT	Special Marine Warning	CRP		93 min
May 12, 12:59 AM CDT	Special Weather Statement	CRP	Nueces	46 min
May 12, 1:00 AM CDT	Special Marine Warning	CRP		60 min
May 12, 1:06 AM CDT	High Wind Warning	CRP	Nueces	114 min
May 12, 1:29 AM CDT	Special Weather Statement	CRP	Nueces	31 min
May 12, 1:48 AM CDT	Special Marine Warning	CRP		117 min
May 12, 10:38 AM CDT	Small Craft Advisory	CRP		6 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.