Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 11, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at May 11, 2021, 6:35 PM CDT for La Salle County, McMullen County, Webb County, Texas. It was in force for 40 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, 6:35 PM CDT (23:35 UTC)
- Expired
- May 11, 2021, 7:15 PM CDT
- In force
- 40 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties La Salle County, TX, McMullen County, TX, Webb County, TX
The radar
The Corpus Christi radar (KCRP), 142 km from the middle of the area, began a volume at 23:34 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 12:00Z, 11.6 hours before the alert went out and 160 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.
- Mixed-layer CAPE
- 1953 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 825 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -52 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -2.5
The text
As transmitted.
989 WUUS54 KCRP 112335 SVRCRP TXC283-311-479-120015- /O.NEW.KCRP.SV.W.0011.210511T2335Z-210512T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Corpus Christi TX 635 PM CDT Tue May 11 2021 The National Weather Service in Corpus Christi has issued a * Severe Thunderstorm Warning for... Northeastern Webb County in south central Texas... Southeastern La Salle County in south central Texas... Southwestern McMullen County in south central Texas... * Until 715 PM CDT. * At 635 PM CDT, a severe thunderstorm was located near Fort Ewell Site, or 24 miles east of Encinal, moving northeast at 20 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * This severe thunderstorm will remain over mainly rural areas of northeastern Webb, southeastern La Salle and southwestern McMullen Counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. To report severe weather, contact your nearest law enforcement agency. They will send your report to the National Weather Service office in Corpus Christi. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 2799 9897 2814 9909 2836 9884 2814 9866 TIME...MOT...LOC 2335Z 232DEG 17KT 2812 9897 HAIL...1.00IN WIND...<50MPH $$ JCP
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 8:58 PM CDT | Special Weather Statement | CRP | La Salle | 32 min |
| May 10, 9:35 PM CDT | Special Weather Statement | CRP | La Salle | 40 min |
| May 10, 10:15 PM CDT | Special Weather Statement | CRP | McMullen | 45 min |
| May 11, 12:35 AM CDT | Special Weather Statement | CRP | San Patricio | 40 min |
| May 11, 1:09 AM CDT | Special Weather Statement | CRP | San Patricio | 51 min |
| May 11, 1:34 AM CDT | Areal Flood Advisory | CRP | Bee, Refugio, San Patricio | 3 hr |
| May 11, 1:43 AM CDT | Special Weather Statement | CRP | San Patricio | 47 min |
| May 11, 2:03 AM CDT | Special Weather Statement | CRP | San Patricio | 42 min |
| May 11, 2:45 AM CDT | Special Weather Statement | CRP | San Patricio | 45 min |
| May 11, 3:09 PM CDT | Special Weather Statement | CRP | La Salle | 36 min |
| May 11, 3:46 PM CDT | Special Weather Statement | CRP | La Salle | 29 min |
| May 11, 4:23 PM CDT | Severe Thunderstorm Warning | CRP | La Salle, McMullen | 52 min |
| May 11, 4:38 PM CDT | Areal Flood Advisory | CRP | La Salle, McMullen | 3 hr |
| May 11, 5:03 PM CDT | Severe Thunderstorm Warning | CRP | McMullen | 42 min |
| May 11, 5:20 PM CDT | Tornado Warning | CRP | Live Oak, McMullen | 40 min |
| May 11, 5:38 PM CDT | Severe Thunderstorm Warning | CRP | Live Oak, McMullen | 52 min |
| May 11, 6:18 PM CDT | Tornado Warning | CRP | Duval, Live Oak, McMullen | 42 min |
| May 11, 6:21 PM CDT | Severe Thunderstorm Warning | CRP | Duval, Jim Wells, Live Oak, McMullen | 39 min |
| May 11, 6:29 PM CDT | Special Weather Statement | CRP | La Salle | 31 min |
| May 11, 6:48 PM CDT | Areal Flood Advisory | CRP | Duval, La Salle, McMullen, Webb | 3 hr |
| May 11, 6:52 PM CDT | Severe Thunderstorm Warning | CRP | Duval, McMullen | 38 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.