Alert archive / Texas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 17, NWS Corpus Christi, TX

April 14, 20188 counties in Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 14, 2018, 1:45 AM CDT for 8 counties in Texas. It was in force for 45 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 14, 2018, 1:45 AM CDT (06:45 UTC)
Expired: Apr 14, 2018, 2:30 AM CDT
In force: 45 min
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Aransas County, TX, Bee County, TX, Calhoun County, TX, Goliad County, TX, Live Oak County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX

The radar

The Corpus Christi radar (KCRP), 68 km from the middle of the area, began a volume at 06:45 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, 6.8 hours before the alert went out and 72 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: 2973 J/kg
Mixed-layer CIN: -191 J/kg
Mixed-layer LCL: 1298 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.8

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 13, 10:36 PM CDT, 3 hours 9 minutes earlier.

Area forecast discussion, Apr 13, 10:36 PM CDT, 3 hours 9 minutes before

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Hazardous weather outlook, Apr 13, 5:55 AM CDT, 19 hours 50 minutes before

Hazardous Weather Outlook
National Weather Service Corpus Christi TX
555 AM CDT Fri Apr 13 2018

TXZ229>234-239>247-141100-
La Salle-McMullen-Live Oak-Bee-Goliad-Victoria-Webb-Duval-
Jim Wells-Kleberg-Nueces-San Patricio-Aransas-Refugio-Calhoun-
555 AM CDT Fri Apr 13 2018

This hazardous weather outlook is for South Texas.

.DAY ONE...Today and Tonight

A few strong to severe thunderstorms will be possible late
tonight/early Saturday morning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A Fire Weather Watch is in effect for Saturday Afternoon for the
western portions of South Texas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

GMZ230-235-250-255-270-275-141100-
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-
555 AM CDT Fri Apr 13 2018

This hazardous weather outlook is for the Middle Texas
Coastal Waters.

.DAY ONE...Today and Tonight

Small Craft Advisory in effect this morning along the southern
bays and through today over the Gulf waters.

A few strong to severe thunderstorms will be possible late
tonight/early Saturday morning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Small Craft Advisory conditions are expected behind a cold front
Saturday. Brief gusts to near gale force possible Saturday. Small
Craft Advisory conditions will continue in the gulf waters for a
time Saturday night. Small Craft Advisory conditions expected again
Tuesday afternoon into Tuesday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

In the hours before

Special weather statement, Apr 13, 11:46 PM CDT, 1 hour 59 minutes before

Special Weather Statement
National Weather Service Corpus Christi TX
1146 PM CDT FRI APR 13 2018

TXZ229-230-239-140545-
McMullen-Webb-La Salle-
1146 PM CDT FRI APR 13 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTH CENTRAL WEBB...LA
SALLE AND NORTHWESTERN MCMULLEN COUNTIES...

At 1145 PM CDT, radar indicated strong thunderstorms were located
along a line extending from near Big Foot to 6 miles north of
Catarina. Movement was east at 35 mph.

Winds in excess of 40 mph and half inch hail are possible with these
storms.

Locations impacted include...
Cotulla, Encinal, Las Tiendas, Gardendale, Zella, Woodward,
Fowlerton, La Esperanza Ranch Airport, Millett, Los Angeles, Artesia
Wells and Callaghan.

LAT...LON 2820 9940 2864 9940 2864 9854 2772 9957
      2820 9983
TIME...MOT...LOC 0445Z 286DEG 29KT 2904 9893 2845 9963

TE

Special weather statement, Apr 14, 1:00 AM CDT, 45 minutes before

Special Weather Statement
National Weather Service Corpus Christi TX
100 AM CDT SAT APR 14 2018

TXZ230>234-246-247-140700-
Live Oak-Calhoun-Victoria-McMullen-Bee-Refugio-Goliad-
100 AM CDT SAT APR 14 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN CALHOUN...
NORTHEASTERN MCMULLEN...VICTORIA...GOLIAD...NORTHWESTERN REFUGIO...
CENTRAL LIVE OAK AND BEE COUNTIES...

At 1259 AM CDT, radar indicated strong thunderstorms were located
along a line extending from near Sublime to 7 miles northwest of
Crowther. Movement was east at 40 mph.

Wind gusts up to 50 mph and half inch hail are possible with these
storms.

Locations impacted include...
Victoria, Beeville, Refugio, Goliad, Three Rivers, McFaddin, Choke
Canyon, Skidmore, Guadalupe, Fannin, Point Comfort, Victoria Colony
Creek Country Club, Calliham, Victoria College, Victoria Mall, Saxet
Lakes, Inez, Ray Point, Downtown Victoria and Fordtran.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 2902 9683 2892 9679 2885 9670 2882 9672
      2867 9664 2870 9657 2871 9648 2813 9759
      2859 9866 2864 9855 2864 9834 2861 9833
      2879 9810 2869 9801 2872 9792 2867 9778
      2892 9742 2887 9730 2910 9698
TIME...MOT...LOC 0559Z 271DEG 76KT 2944 9675 2868 9845

TE

Special weather statement, Apr 14, 1:14 AM CDT, 31 minutes before

Special Weather Statement
National Weather Service Corpus Christi TX
114 AM CDT SAT APR 14 2018

TXZ230>232-240>244-246-140700-
Live Oak-Jim Wells-McMullen-Kleberg-Bee-Nueces-Duval-Refugio-San
Patricio-
114 AM CDT SAT APR 14 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN DUVAL...
NORTHWESTERN NUECES...WESTERN SAN PATRICIO...SOUTHEASTERN MCMULLEN...
JIM WELLS...SOUTHWESTERN REFUGIO...LIVE OAK...NORTHWESTERN KLEBERG
AND SOUTHWESTERN BEE COUNTIES...

At 112 AM CDT, radar indicated strong thunderstorms were located
along a line extending from near Three Rivers to 13 miles west of
Seven Sisters. Movement was southeast at 45 mph.

Wind gusts up to 50 mph and half inch hail are possible with these
storms.

Locations impacted include...
Alice, Robstown, Sinton, Mathis, San Diego, Freer, George West, Three
Rivers, Choke Canyon, Skidmore, Odem, Orange Grove, St. Paul, Lake
City, San Patricio, Midway, Banquete, Tynan, Sandia and Calliham.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 2749 9807 2798 9881 2800 9880 2813 9880
      2834 9866 2858 9839 2814 9732
TIME...MOT...LOC 0612Z 302DEG 55KT 2855 9819 2805 9875

TE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 11:46 PM CDT	Special Weather Statement	CRP	La Salle	59 min
Apr 14, 12:25 AM CDT	Severe Thunderstorm Warning	CRP	La Salle, McMullen	50 min
Apr 14, 1:00 AM CDT	Special Weather Statement	CRP	Bee, Goliad, Victoria	60 min
Apr 14, 1:14 AM CDT	Special Weather Statement	CRP	Jim Wells, Live Oak, McMullen, San Patricio	46 min
Apr 14, 1:58 AM CDT	Severe Thunderstorm Warning	CRP	Jim Wells, Kleberg, Nueces, San Patricio	32 min
Apr 14, 1:59 AM CDT	Special Marine Warning	CRP		91 min
Apr 14, 2:29 AM CDT	Severe Thunderstorm Warning	CRP	Aransas, Kleberg, Nueces, San Patricio	31 min
Apr 14, 2:32 AM CDT	Severe Thunderstorm Warning	CRP	Aransas, Calhoun, Refugio	28 min
Apr 14, 2:49 AM CDT	Special Marine Warning	CRP		86 min
Apr 14, 2:58 AM CDT	Special Weather Statement	CRP	Aransas, Calhoun, Kleberg, Nueces, Refugio, San Patricio and 1 more	62 min
Apr 14, 4:09 AM CDT	Red Flag Warning	CRP	Duval, Jim Wells, La Salle, Live Oak, McMullen, Webb	15 hr
Apr 14, 4:12 AM CDT	Special Marine Warning	CRP		63 min
Apr 14, 4:16 AM CDT	Special Weather Statement	CRP	Bee	44 min
Apr 14, 8:40 AM CDT	Special Weather Statement	CRP	Nueces	35 min
Apr 14, 8:56 AM CDT	Special Weather Statement	CRP	San Patricio	34 min
Apr 14, 9:01 AM CDT	Special Weather Statement	CRP	Refugio	29 min
Apr 14, 9:21 AM CDT	Special Weather Statement	CRP	Kleberg	24 min
Apr 14, 10:11 AM CDT	Special Weather Statement	CRP	Nueces	19 min
Apr 14, 10:16 AM CDT	Special Weather Statement	CRP	Live Oak	14 min
Apr 14, 12:15 PM CDT	Gale Warning	CRP		4 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2018 Every severe thunderstorm warning in 2018

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.