Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 42, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at May 26, 2009, 2:58 AM CDT for La Salle County, Webb County, Texas. It was in force for 62 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
- May 26, 2009, 2:58 AM CDT (07:58 UTC)
- Expired
- May 26, 2009, 4:00 AM CDT
- In force
- 62 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Storm-based polygon
Counties La Salle County, TX, Webb County, TX
The radar
The Corpus Christi radar (KCRP), 170 km from the middle of the area, began a volume at 07:59 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, 8.0 hours before the alert went out and 188 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
- 3120 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 1177 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.5
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 May 25, 11:56 PM CDT, 3 hours 2 minutes earlier.
Area forecast discussion, May 25, 11:56 PM CDT, 3 hours 2 minutes before
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</html>Hazardous weather outlook, May 25, 8:25 PM CDT, 6 hours 33 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 825 PM CDT MON MAY 25 2009 TXZ229>234-239>247-261000- LA SALLE-MCMULLEN-LIVE OAK-BEE-GOLIAD-VICTORIA-WEBB-DUVAL- JIM WELLS-KLEBERG-NUECES-SAN PATRICIO-ARANSAS-REFUGIO-CALHOUN- 825 PM CDT MON MAY 25 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS. .DAY ONE...TONIGHT THERE IS A CHANCE OF THUNDERSTORMS FOR THE REST OF THIS EVENING INTO THE OVERNIGHT HOURS MAINLY OVER THE BRUSH COUNTRY. SOME OF THESE STORMS COULD BECOME SEVERE PRODUCING QUARTER SIZED HAIL...WIND GUSTS UP TO 60 MPH...BRIEF HEAVY RAIN AND FREQUENT LIGHTNING. THE HIGHER THREAT FOR SEVERE STORMS WILL BE OVER THE WESTERN BRUSH COUNTRY COUNTIES OF WEBB AND LA SALLE. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE WILL BE A SLIGHT CHANCE TO A CHANCE OF SHOWERS AND THUNDERSTORMS EACH AFTERNOON WEDNESDAY THROUGH FRIDAY. HOWEVER...NO ORGANIZED SEVERE WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE POSSIBLE OVER THE WESTERN BRUSH COUNTRY TONIGHT. GMZ230-235-250-255-270-275-261000- BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS- BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT OCONNOR- COASTAL WATERS BAFFIN BAY TO PORT ARANSAS OUT 20 NM- COASTAL WATERS PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT 20 NM- WATERS BAFFIN BAY TO PORT ARANSAS 20 TO 60 NM- WATERS PORT ARANSAS TO MATAGORDA SHIP CHANNEL 20 TO 60 NM- 825 PM CDT MON MAY 25 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDDLE TEXAS COASTAL WATERS. .DAY ONE...TONIGHT HAZARDOUS WEATHER IS NOT EXPECTED TONIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE WILL BE A SLIGHT CHANCE TO A CHANCE OF SHOWERS AND THUNDERSTORMS EACH AFTERNOON WEDNESDAY THROUGH FRIDAY. HOWEVER...NO ORGANIZED SEVERE WEATHER IS EXPECTED AT THIS TIME. TMT
In the hours before
Local storm report, May 25, 9:54 PM CDT, 5 hours 4 minutes before
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</html>Local storm report, May 25, 9:56 PM CDT, 5 hours 2 minutes before
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</html>Local storm report, May 25, 10:11 PM CDT, 4 hours 47 minutes before
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</html>Local storm report, May 25, 10:35 PM CDT, 4 hours 23 minutes before
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</html>Special weather statement, May 26, 2:35 AM CDT, 23 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 |
|---|---|---|---|---|
| May 25, 8:31 PM CDT | Severe Thunderstorm Warning | CRP | Webb | 59 min |
| May 25, 9:04 PM CDT | Severe Thunderstorm Warning | CRP | Webb | 56 min |
| May 25, 9:35 PM CDT | Tornado Warning | CRP | Webb | 40 min |
| May 25, 9:43 PM CDT | Flash Flood Warning | CRP | Webb | 51 min |
| May 25, 10:13 PM CDT | Severe Thunderstorm Warning | CRP | Webb | 16 min |
| May 26, 2:45 AM CDT | Severe Thunderstorm Warning | CRP | Live Oak | 31 min |
| May 26, 6:16 AM CDT | Special Marine Warning | CRP | 119 min | |
| May 26, 6:47 AM CDT | Special Marine Warning | CRP | 118 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2009Every severe thunderstorm warning in 2009
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.