Alert archive / Texas / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 57, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 27, 2015, 3:39 AM CDT for Webb County, Texas. It was in force for 36 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 27, 2015, 3:39 AM CDT (08:39 UTC)
- Expired
- Apr 27, 2015, 4:15 AM CDT
- In force
- 36 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Storm-based polygon
County Webb County, TX
The radar
The Corpus Christi radar (KCRP), 179 km from the middle of the area, began a volume at 08:41 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, 8.7 hours before the alert went out and 196 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
- 3577 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 627 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 3.5
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 Apr 27, 2:21 AM CDT, 1 hour 18 minutes earlier.
Area forecast discussion, Apr 27, 2:21 AM CDT, 1 hour 18 minutes before
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</html>Hazardous weather outlook, Apr 26, 4:59 AM CDT, 22 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 459 AM CDT SUN APR 26 2015 TXZ229>234-239>247-271000- LA SALLE-MCMULLEN-LIVE OAK-BEE-GOLIAD-VICTORIA-WEBB-DUVAL- JIM WELLS-KLEBERG-NUECES-SAN PATRICIO-ARANSAS-REFUGIO-CALHOUN- 459 AM CDT SUN APR 26 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS WILL BE POSSIBLE TODAY. TONIGHT...ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE...WITH ISOLATED STRONG TO SEVERE STORMS POSSIBLE LATE TONIGHT OVER THE VICTORIA CROSSROADS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED MONDAY. ISOLATED STRONG TO SEVERE THUNDERSTORMS WITH DAMAGING WINDS OR HAIL WILL BE POSSIBLE MONDAY. THE HIGHEST THREAT FOR SEVERE STORMS MONDAY WILL BE OVER THE VICTORIA CROSSROADS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BECOME NEEDED LATE TONIGHT INTO MONDAY FOR STORMS ACROSS THE VICTORIA CROSSROADS REGION. GMZ230-235-250-255-270-275-271000- 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- 459 AM CDT SUN APR 26 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS AND THE MIDDLE TEXAS COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT A MARINE DENSE FOG ADVISORY IS IN EFFECT FOR THE LOCAL AREA BAYS AND NEARSHORE WATERS THROUGH 9 AM CDT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY SMALL CRAFT ADVISORY CONDITIONS WILL BE POSSIBLE BEHIND A COLD FRONT ON TUESDAY AND TUESDAY NIGHT. LK/TMT
In the hours before
Special weather statement, Apr 27, 1:35 AM CDT, 2 hours 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
135 AM CDT MON APR 27 2015
TXZ229-239-270700-
WEBB-LA SALLE-
135 AM CDT MON APR 27 2015
...AN OUTFLOW BOUNDARY OF STRONG WIND WILL AFFECT NORTHWESTERN WEBB
AND LA SALLE COUNTIES...
AT 131 AM CDT...AN OUTFLOW BOUNDARY PRECEDING A LINE OF STRONG
THUNDERSTORMS WAS ALONG A LINE EXTENDING FROM NEAR DEVINE TO DILLEY
TO 6 MILES NORTHEAST OF CATARINA TO NEAR CHUPADERA RANCH
AIRPORT...AND MOVING SOUTHEAST AT 40 MPH.
NORTHWEST WINDS IN EXCESS OF 40 MPH ARE POSSIBLE WITH THIS OUTFLOW
BOUNDARY. THUNDERSTORMS MAY IMPACT THE AREA AFTER THE INITIAL AREA
OF STRONG WINDS PUSH THROUGH.
LOCATIONS IMPACTED INCLUDE...
COTULLA...CHUPADERA RANCH AIRPORT...GARDENDALE...LOS ANGELES...LAS
TIENDAS...MILLET...MILLETT...LA ESPERANZA RANCH AIRPORT...
FOWLERTON...ARTESIA WELLS AND WOODWARD.
STORMS MAY DEVELOP AND INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL
RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR
ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL
WEATHER SERVICE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 AM CDT FOR SOUTH TEXAS.
LAT...LON 2820 10007 2820 9940 2862 9940 2864 9936
2865 9880 2843 9880 2840 9884 2814 9919
2780 9979 2795 9994 2798 9993 2802 10001
2815 10008 2816 10013
TIME...MOT...LOC 0631Z 311DEG 35KT 2911 9887 2869 9919 2842 9955 2816
10002
HARTLocal storm report, Apr 27, 2:27 AM CDT, 1 hour 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 27, 1:35 AM CDT | Special Weather Statement | CRP | La Salle | 25 min |
| Apr 27, 2:02 AM CDT | Severe Thunderstorm Warning | CRP | La Salle, McMullen | 58 min |
| Apr 27, 2:10 AM CDT | Tornado Warning | CRP | La Salle | 35 min |
| Apr 27, 3:31 AM CDT | Special Weather Statement | CRP | Webb | 29 min |
| Apr 27, 4:17 AM CDT | Special Weather Statement | CRP | Zapata | 43 min |
| Apr 27, 4:53 AM CDT | Severe Thunderstorm Warning | CRP | Webb | 22 min |
| Apr 27, 3:20 PM CDT | Small Craft Advisory | CRP | 40 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2015Every severe thunderstorm warning in 2015
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.