Alert archive / Texas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 19, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 4, 2020, 1:54 AM CDT for Duval County, Jim Wells County, Texas. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 4, 2020, 1:54 AM CDT (06:54 UTC)
- Expired
- Apr 4, 2020, 2:45 AM CDT
- In force
- 51 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Duval County, TX, Jim Wells County, TX
The radar
The Corpus Christi radar (KCRP), 78 km from the middle of the area, began a volume at 06:56 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
Corpus Christi, TX (KCRP), launched 00:00Z, 6.9 hours before the alert went out and 94 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
- 1259 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 773 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- -42 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Corpus Christi, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 4, 12:20 AM CDT, 1 hour 34 minutes earlier.
Area forecast discussion, Apr 4, 12:20 AM CDT, 1 hour 34 minutes before
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</html>Hazardous weather outlook, Apr 3, 3:13 PM CDT, 10 hours 41 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Corpus Christi TX 313 PM CDT Fri Apr 3 2020 TXZ229>234-239>247-342>347-442-443-447-041200- La Salle-McMullen-Live Oak-Bee-Goliad-Victoria-Webb-Duval- Jim Wells-Inland Kleberg-Inland Nueces-Inland San Patricio- Coastal Aransas-Inland Refugio-Inland Calhoun-Coastal Kleberg- Coastal Nueces-Coastal San Patricio-Aransas Islands- Coastal Refugio-Coastal Calhoun-Kleberg Islands-Nueces Islands- Calhoun Islands- 313 PM CDT Fri Apr 3 2020 This hazardous weather outlook is for South Texas. .DAY ONE...This afternoon and Tonight There is a Slight risk of severe thunderstorms for all of south Texas this afternoon through tonight except for the immediate coastline where a Marginal risk for severe storms exists. Main hazards from the severe thunderstorms will be large hail and isolated severe wind gusts. An isolated tornado cannot be ruled out for the Brush Country. Locally heavy rainfall is possible tonight as well. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Scattered thunderstorms are expected across south Texas Saturday. Storms are not expected to become severe. Isolated to scattered thunderstorms are expected Sunday through Thursday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to relay reports of severe weather and flooding while following local, state, and CDC guidelines. Use hashtags #ccspotter and #txwx GMZ230-235-250-255-270-275-041200- Bays and Waterways from Baffin Bay to Port Aransas- Bays and Waterways from Port Aransas to Port O'Connor- Coastal waters from Baffin Bay to Port Aransas out 20 NM- Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM-Waters from Baffin Bay to Port Aransas from 20 to 60 NM- Waters from Port Aransas to Matagorda Ship Channel from 20 to 60 NM- 313 PM CDT Fri Apr 3 2020 This hazardous weather outlook is for the Middle Texas Coastal Waters. .DAY ONE...This afternoon and Tonight There is a Marginal risk of severe thunderstorms tonight. Storms could produce wind gusts to 35 knots. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Small craft advisory conditions are possible Saturday afternoon and evening. Isolated to scattered thunderstorms will be possible over the weekend into early next week. TMT/LS
In the hours before
Local storm report, Apr 3, 9:37 PM CDT, 4 hours 17 minutes before
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</html>Special weather statement, Apr 4, 1:25 AM CDT, 29 minutes before
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</html>Special weather statement, Apr 4, 1:42 AM CDT, 12 minutes before
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</html>The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 7:21 PM CDT | Severe Thunderstorm Warning | CRP | Duval, La Salle, McMullen, Webb | 39 min |
| Apr 3, 7:55 PM CDT | Severe Thunderstorm Warning | CRP | Duval, La Salle, McMullen, Webb | 50 min |
| Apr 3, 8:15 PM CDT | Areal Flood Advisory | CRP | McMullen | 2 hr |
| Apr 3, 8:18 PM CDT | Special Weather Statement | CRP | McMullen | 27 min |
| Apr 3, 8:31 PM CDT | Special Weather Statement | CRP | Webb | 44 min |
| Apr 3, 8:48 PM CDT | Severe Thunderstorm Warning | CRP | La Salle, Webb | 42 min |
| Apr 3, 8:49 PM CDT | Special Weather Statement | CRP | Webb | 41 min |
| Apr 3, 8:51 PM CDT | Special Weather Statement | CRP | McMullen | 24 min |
| Apr 3, 9:03 PM CDT | Special Weather Statement | CRP | Duval | 27 min |
| Apr 3, 9:29 PM CDT | Severe Thunderstorm Warning | CRP | La Salle, Webb | 61 min |
| Apr 3, 9:59 PM CDT | Areal Flood Advisory | CRP | Duval | 2 hr |
| Apr 3, 10:11 PM CDT | Special Weather Statement | CRP | Live Oak | 34 min |
| Apr 3, 10:25 PM CDT | Special Weather Statement | CRP | Jim Wells | 50 min |
| Apr 3, 10:28 PM CDT | Severe Thunderstorm Warning | CRP | Duval, Webb | 32 min |
| Apr 3, 10:59 PM CDT | Severe Thunderstorm Warning | CRP | Duval, Webb | 46 min |
| Apr 3, 11:39 PM CDT | Special Weather Statement | CRP | San Patricio | 36 min |
| Apr 4, 12:22 AM CDT | Areal Flood Advisory | CRP | Jim Wells, Live Oak, Nueces, San Patricio | 83 min |
| Apr 4, 1:25 AM CDT | Special Weather Statement | CRP | Duval, Jim Wells | 35 min |
| Apr 4, 1:42 AM CDT | Special Weather Statement | CRP | Duval | 48 min |
| Apr 4, 2:13 AM CDT | Areal Flood Advisory | CRP | Duval, Webb | 2 hr |
| Apr 4, 2:24 AM CDT | Special Weather Statement | CRP | Bee | 36 min |
| Apr 4, 2:38 AM CDT | Special Weather Statement | CRP | Jim Wells | 52 min |
| Apr 4, 3:23 AM CDT | Special Weather Statement | CRP | Webb | 52 min |
| Apr 4, 4:00 AM CDT | Small Craft Advisory | CRP | 31 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2020Every severe thunderstorm warning in 2020
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.