Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 41, NWS Corpus Christi, TX

April 22, 20154 counties in Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 22, 2015, 11:25 AM CDT for 4 counties in Texas. It was in force for 35 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 22, 2015, 11:25 AM CDT (16:25 UTC)
Expired: Apr 22, 2015, 12:00 PM CDT
In force: 35 min
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon

Counties Duval County, TX, Jim Wells County, TX, Live Oak County, TX, McMullen County, TX

The radar

The Corpus Christi radar (KCRP), 84 km from the middle of the area, began a volume at 16:29 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
Apr 22, 11:13 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 4.4 hours before the alert went out and 102 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: 856 J/kg
Mixed-layer CIN: -173 J/kg
Mixed-layer LCL: 763 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 202 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

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 22, 9:23 AM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, Apr 22, 9:23 AM CDT, 2 hours 2 minutes before

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Hazardous weather outlook, Apr 22, 4:51 AM CDT, 6 hours 34 minutes before

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In the hours before

Special weather statement, Apr 22, 10:50 AM CDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1050 AM CDT WED APR 22 2015

TXZ229-230-239-240-221630-
MCMULLEN-DUVAL-WEBB-LA SALLE-
1050 AM CDT WED APR 22 2015

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN MCMULLEN...EAST
CENTRAL WEBB...SOUTHEASTERN LA SALLE AND NORTHWESTERN DUVAL
COUNTIES...

AT 1049 AM CDT...A STRONG THUNDERSTORM WAS 12 MILES SOUTH OF FORT
EWELL SITE...OR 21 MILES WEST OF FREER...MOVING NORTHEAST AT 40 MPH.

WINDS IN EXCESS OF 30 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHWESTERN
MCMULLEN...NORTHWESTERN DUVAL...EAST CENTRAL WEBB AND SOUTHEASTERN LA
SALLE COUNTIES.

LAT...LON 2785 9903 2795 9912 2827 9879 2806 9859
TIME...MOT...LOC 1549Z 231DEG 36KT 2797 9896

CB

Special weather statement, Apr 22, 11:14 AM CDT, 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1114 AM CDT WED APR 22 2015

TXZ230-231-240-241-221645-
MCMULLEN-DUVAL-JIM WELLS-LIVE OAK-
1114 AM CDT WED APR 22 2015

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN MCMULLEN...
NORTHWESTERN JIM WELLS...SOUTHWESTERN LIVE OAK AND NORTHEASTERN DUVAL
COUNTIES...

AT 1114 AM CDT...A STRONG THUNDERSTORM WAS NEAR FREER...MOVING
NORTHEAST AT 45 MPH.

WINDS IN EXCESS OF 30 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
FREER...MIDWAY...LOMA ALTA...CLEGG...RANCHO DE LA PARITA...SEVEN
SISTERS AND ANNAROSE.

LAT...LON 2774 9857 2800 9875 2829 9829 2801 9807
TIME...MOT...LOC 1614Z 241DEG 39KT 2793 9856

MB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 10:50 AM CDT	Special Weather Statement	CRP	La Salle	40 min
Apr 22, 11:14 AM CDT	Special Weather Statement	CRP	Duval	31 min
Apr 22, 11:39 AM CDT	Special Weather Statement	CRP	Jim Wells	36 min
Apr 22, 12:00 PM CDT	Severe Thunderstorm Warning	CRP	Duval, Jim Wells	45 min
Apr 22, 12:27 PM CDT	Severe Thunderstorm Warning	CRP	Jim Wells, Nueces, San Patricio	33 min
Apr 22, 12:36 PM CDT	Areal Flood Advisory	CRP	Jim Wells, Nueces, San Patricio	114 min
Apr 22, 12:37 PM CDT	Special Weather Statement	CRP	Goliad, Victoria	23 min
Apr 22, 12:41 PM CDT	Special Marine Warning	CRP		94 min
Apr 22, 12:53 PM CDT	Flash Flood Warning	CRP	Nueces, San Patricio	112 min
Apr 22, 12:59 PM CDT	Severe Thunderstorm Warning	CRP	Kleberg, Nueces	46 min
Apr 22, 1:45 PM CDT	Severe Thunderstorm Warning	CRP	Kleberg, Nueces	30 min
Apr 22, 1:54 PM CDT	Special Marine Warning	CRP		66 min
Apr 22, 2:00 PM CDT	Flash Flood Warning	CRP	Kleberg, Nueces, San Patricio	90 min
Apr 22, 2:18 PM CDT	Severe Thunderstorm Warning	CRP	Kleberg, Nueces	14 min
Apr 22, 2:25 PM CDT	Special Marine Warning	CRP		95 min
Apr 22, 2:42 PM CDT	Areal Flood Warning	CRP	Nueces, San Patricio	2 hr
Apr 22, 2:51 PM CDT	River Flood Warning	CRP	Nueces	42 hr
Apr 22, 3:11 PM CDT	Special Marine Warning	CRP		94 min
Apr 22, 3:34 PM CDT	Special Weather Statement	CRP	Karnes	41 min
Apr 22, 3:44 PM CDT	Special Marine Warning	CRP		46 min
Apr 22, 3:54 PM CDT	Severe Thunderstorm Warning	CRP	Bee, Goliad	21 min
Apr 22, 4:09 PM CDT	Flash Flood Warning	CRP	Goliad	66 min
Apr 22, 4:14 PM CDT	Severe Thunderstorm Warning	CRP	Bee, Goliad, Refugio, Victoria	31 min
Apr 22, 4:44 PM CDT	Severe Thunderstorm Warning	CRP	Aransas, Calhoun, Goliad, Refugio, Victoria	31 min
Apr 22, 4:47 PM CDT	Special Marine Warning	CRP		118 min
Apr 22, 5:16 PM CDT	Severe Thunderstorm Warning	CRP	Aransas, Calhoun, Refugio	44 min
Apr 22, 6:35 PM CDT	Special Marine Warning	CRP		55 min
Apr 22, 6:52 PM CDT	River Flood Warning	CRP	Goliad, Victoria	24 hr
Apr 22, 6:52 PM CDT	River Flood Warning	CRP	Calhoun, Goliad, Refugio, Victoria	48 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2015 Every 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.