Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 33, NWS Corpus Christi, TX

April 17, 2015Bee County, Live Oak County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 17, 2015, 6:20 PM CDT for Bee County, Live Oak County, Texas. It was in force for 40 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 17, 2015, 6:20 PM CDT (23:20 UTC)
Expired: Apr 17, 2015, 7:00 PM CDT
In force: 40 min
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon

Counties Bee County, TX, Live Oak County, TX

The radar

The Corpus Christi radar (KCRP), 79 km from the middle of the area, began a volume at 23:23 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 17, 11:53 AM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 11.3 hours before the alert went out and 93 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: 854 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 525 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.2

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 17, 3:41 PM CDT, 2 hours 39 minutes earlier.

Area forecast discussion, Apr 17, 3:41 PM CDT, 2 hours 39 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
341 PM CDT FRI APR 17 2015

.SHORT TERM...(TONIGHT THROUGH SATURDAY)...SEVERE CONVECTION
ONGOING ACRS THE FAR NORTHERN CWA THIS AFTN ALONG THERMAL/MSTR
BNDRY. CONVECTION HAS SO FAR REMAINED CONFINED TO THE IMMEDIATE
BNDRY ITSELF DESPITE 3000-4000 J/KG CAPES AND 40+ 0-6 KM SHEAR AS
THERE REMAINS A BIT OF A CAP AROUND 800 MB. EXPECT SVR CONVECTION
TO AFFECT MAINLY THE NORTHERN CWFA THRU 00Z AS CONVECTIVE COMPLEX
PROPAGATES EAST AND ADDITIONAL CELLS DVLP AHEAD OF THE LINE.
DAMAGING STRAIGHT LINE WINDS WILL BE THE MAIN THREAT ALTHOUGH WE
HAVE SEEN PERIODS OF RELATIVE STRONG ROTATION DVLP SO A TORNADO
CANNOT BE RULED OUT. OTHER CLUSTERS OF STORMS COULD DVLP ANY TIME
LATER THIS EVENING AND OVERNIGHT AND SOME COULD BE SEVERE.
INITIAL STORM CLUSTER PRODUCED 1-2 INCHES OF RAIN VERY QUICKLY IN
THE NORTH AND WITH AN ADDITIONAL CONVECTIVE COMPLEX PSBL TNGT WILL
EXTEND THE FFA BACK WEST TO COTULLA AND CONTINUE IT THRU 12Z.

ANOTHER POTENTIALLY ACTIVE SEVERE WEATHER DAY SATURDAY WITH
PLENTIFUL SHEAR AND INSTABILITY IN PLACE. SPC HAS THE ENTIRE AREA
OUTLOOKED IN A SLIGHT RISK. DAMAGING WINDS AND LARGE HAIL LOOKS TO
BE THE MAIN THREAT.

.LONG TERM (SATURDAY NIGHT THROUGH FRIDAY)...UNSETTLED WEATHER
PATTERN CONTINUES THROUGH THE EXTENDED. MODELS FORECAST A SLIGHT
LULL IN THE ACTION ON SUNDAY AS UPPER FORCING EDGES EAST OF THE
COASTAL BEND...BUT RAIN CHANCES INCREASE THROUGH THE FIRST PART OF
NEXT WEEK AS WEAK RIPPLES IN THE UPPER FLOW INTERACT WITH A
PERSISTENT SURFACE BOUNDARY AND LOTS OF AVAILABLE MOISTURE. WILL NOT
ATTEMPT TO TIME ANY OF THESE IMPULSES...INSTEAD INCLUDING SLIGHT
CHANCE TO CHANCE POPS THROUGH THE REMAINDER OF THE EXTENDED PERIOD.

TEMPERATURES TO REMAIN NEAR OR SLIGHTLY ABOVE NORMAL THROUGH THE
PERIOD.

&&

.LONG TERM...

&&

.PRELIMINARY POINT TEMPS/POPS...
CORPUS CHRISTI    81  71  82  67  86  /  60  70  50  30  20
VICTORIA          81  68  80  65  85  /  80  80  50  30  10
LAREDO            85  69  88  66  90  /  50  50  30  20  10
ALICE             83  70  84  66  89  /  60  70  50  30  10
ROCKPORT          78  71  77  69  81  /  60  70  50  30  20
COTULLA           82  65  85  64  90  /  80  80  40  20  10
KINGSVILLE        83  71  84  67  88  /  50  70  50  30  20
NAVY CORPUS       78  72  77  68  80  /  60  70  50  30  20

&&

.CRP WATCHES/WARNINGS/ADVISORIES...
TX...FLASH FLOOD WATCH THROUGH SATURDAY MORNING FOR THE FOLLOWING
     ZONES: ARANSAS...BEE...CALHOUN...GOLIAD...LA SALLE...LIVE
     OAK...MCMULLEN...REFUGIO...VICTORIA.

GM...NONE.

&&

99...SHORT TERM
99...LONG TERM

Hazardous weather outlook, Apr 17, 4:57 PM CDT, 1 hour 23 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
457 PM CDT FRI APR 17 2015

GMZ230-235-250-255-270-275-TXZ229>234-239>247-182200-
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-LA SALLE-MCMULLEN-LIVE OAK-BEE-GOLIAD-VICTORIA-WEBB-DUVAL-
JIM WELLS-KLEBERG-NUECES-SAN PATRICIO-ARANSAS-REFUGIO-CALHOUN-
457 PM CDT FRI APR 17 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS AND THE MIDDLE
TEXAS COASTAL WATERS.

.DAY ONE...TONIGHT

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WEBB...LA SALLE AND
MCMULLEN COUNTIES UNTIL 7 PM CDT AND FOR ARANSAS...CALHOUN...
GOLIAD...REFUGIO...SAN PATRICIO AND VICTORIA COUNTIES UNTIL 10
PM.

THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS TONIGHT ACROSS
ALL OF SOUTH TEXAS. LARGE HAIL AND DAMAGING WINDS WILL BE THE
MAJOR THREATS. HOWEVER...AN ISOLATED TORNADO CANNOT BE RULED OUT.

A FLASH FLOOD WATCH IS IN EFFECT TONIGHT FOR AREAS FROM COTULLA
THROUGH GEORGE WEST INTO VICTORIA.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THERE IS AN SLIGHT RISK OF SEVERE WEATHER SATURDAY AND A MARGINAL
RISK ON SUNDAY. THUNDERSTORMS WILL BE MOST LIKELY IN THE AFTERNOON
AND EVENING HOURS EACH DAY WITH LARGE HAIL AND DAMAGING WINDS
BEING THE PRIMARY THREATS. AN ISOLATED TORNADO CAN NOT BE RULED
OUT.

.SPOTTER INFORMATION STATEMENT...

DUE TO THE POTENTIAL FOR SEVERE THUNDERSTORMS...SPOTTER ACTIVATION
MAY BE NEEDED TONIGHT AND SATURDAY.

In the hours before

Special weather statement, Apr 17, 4:05 PM CDT, 2 hours 15 minutes before

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Special weather statement, Apr 17, 4:37 PM CDT, 1 hour 43 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
437 PM CDT FRI APR 17 2015

TXZ234-172200-
VICTORIA-
437 PM CDT FRI APR 17 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN VICTORIA COUNTY...

AT 435 PM CDT...A STRONG THUNDERSTORM WAS 2 MILES SOUTHEAST OF
NURSERY...MOVING NORTHEAST AT 40 MPH.

WIND GUSTS UP TO 50 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...SALEM...FORDTRAN AND NURSERY.

LAT...LON 2906 9694 2902 9683 2897 9681 2895 9681
      2878 9705 2891 9719 2905 9705 2910 9698
TIME...MOT...LOC 2135Z 237DEG 35KT 2890 9705

TMT

Special weather statement, Apr 17, 4:41 PM CDT, 1 hour 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
441 PM CDT FRI APR 17 2015

TXZ233-172215-
GOLIAD-
441 PM CDT FRI APR 17 2015

...STRONG THUNDERSTORMS WILL AFFECT NORTHERN GOLIAD COUNTY...

AT 440 PM CDT...A LINE OF STRONG THUNDERSTORMS WAS FROM YORKTOWN TO
NEAR CHARCO...MOVING EAST AT 35 MPH.

WIND GUSTS OF 50 TO 55 MPH AND DIME SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
GOLIAD...WESER...CHARCO...WEESATCHE AND ANDER.

LAT...LON 2889 9735 2890 9734 2887 9732 2888 9731
      2884 9730 2885 9729 2864 9725 2865 9775
      2866 9776 2869 9774 2893 9742
TIME...MOT...LOC 2140Z 271DEG 31KT 2876 9757

TMT

Special weather statement, Apr 17, 5:12 PM CDT, 1 hour 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
512 PM CDT FRI APR 17 2015

TXZ233-234-172245-
GOLIAD-VICTORIA-
512 PM CDT FRI APR 17 2015

...A LINE OF STRONG THUNDERSTORM WILL AFFECT NORTHERN VICTORIA AND
EXTREME NORTHEASTERN GOLIAD COUNTIES...

AT 509 PM CDT...A LINE OF STRONG THUNDERSTORMS WAS FROM THOMASTON TO
NURSERY TO SOUTHWEST OF SCHROEDER...MOVING EAST AT 50 MPH.

WIND GUSTS FROM 50 TO 55 MPH WILL BE POSSIBLE ALONG WITH PEA SIZED
HAIL. FREQUENT CLOUD TO GROUND LIGHTNING WILL ALSO OCCUR.

LOCATIONS IMPACTED INCLUDE...
VICTORIA...VICTORIA DETAR HOSPITAL NORTH...SALEM...INEZ...NURSERY...
VICTORIA MALL...WOOD HI...VICTORIA REGIONAL AIRPORT...DOWNTOWN
VICTORIA...VICTORIA RIVERSIDE PARK...SCHROEDER...FORDTRAN...
TELFERNER...VICTORIA COLONY CREEK COUNTRY CLUB...VICTORIA COLLEGE...
MISSION VALLEY AND SAXET LAKES.

LAT...LON 2906 9694 2902 9683 2892 9679 2889 9673
      2886 9672 2885 9670 2882 9672 2878 9670
      2874 9727 2887 9730 2909 9699 2910 9697
TIME...MOT...LOC 2209Z 270DEG 45KT 2893 9711

TMT

Special weather statement, Apr 17, 5:27 PM CDT, 53 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
527 PM CDT FRI APR 17 2015

TXZ230-231-172300-
MCMULLEN-LIVE OAK-
527 PM CDT FRI APR 17 2015

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL MCMULLEN AND WEST
CENTRAL LIVE OAK COUNTIES...

AT 526 PM CDT...A STRONG THUNDERSTORM WAS 10 MILES SOUTHWEST OF
SIMMONS...OR 14 MILES SOUTHEAST OF TILDEN...MOVING NORTHEAST AT 30
MPH.

WINDS IN EXCESS OF 40 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
SIMMONS.

LAT...LON 2818 9842 2837 9851 2853 9822 2828 9814
TIME...MOT...LOC 2226Z 243DEG 27KT 2830 9840

TMT

Local storm report, Apr 17, 5:33 PM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
533 PM CDT FRI APR 17 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0529 PM     HAIL             VICTORIA                28.82N 96.98W
04/17/2015  E0.25 INCH       VICTORIA           TX   TRAINED SPOTTER

            HAIL RPORTED IN SOUTHEAST PART OF CITY OF VICTORIA

&&

LKEYS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 2:46 AM CDT	Special Marine Warning	CRP		44 min
Apr 17, 3:01 AM CDT	Special Marine Warning	CRP		29 min
Apr 17, 3:20 AM CDT	Flash Flood Watch	CRP	Aransas, Bee, Calhoun, Goliad, La Salle, Live Oak and 3 more	21 hr
Apr 17, 10:34 AM CDT	River Flood Warning	CRP	Calhoun, Refugio, Victoria	14 days
Apr 17, 12:01 PM CDT	Special Weather Statement	CRP	Dimmit	59 min
Apr 17, 1:38 PM CDT	Severe Thunderstorm Warning	CRP	La Salle	67 min
Apr 17, 2:34 PM CDT	Severe Thunderstorm Warning	CRP	La Salle, McMullen	56 min
Apr 17, 2:45 PM CDT	Tornado Warning	CRP	La Salle, McMullen	30 min
Apr 17, 3:31 PM CDT	Severe Thunderstorm Warning	CRP	Live Oak, McMullen	59 min
Apr 17, 3:50 PM CDT	Special Weather Statement	CRP	Calhoun	25 min
Apr 17, 3:54 PM CDT	Severe Thunderstorm Warning	CRP	Bee, Live Oak	51 min
Apr 17, 4:05 PM CDT	Special Weather Statement	CRP	Goliad	25 min
Apr 17, 4:37 PM CDT	Special Weather Statement	CRP	Victoria	23 min
Apr 17, 4:41 PM CDT	Special Weather Statement	CRP	Goliad	34 min
Apr 17, 4:45 PM CDT	Severe Thunderstorm Warning	CRP	Victoria	30 min
Apr 17, 5:12 PM CDT	Special Weather Statement	CRP	Victoria	33 min
Apr 17, 5:27 PM CDT	Special Weather Statement	CRP	Live Oak	33 min
Apr 17, 5:43 PM CDT	Areal Flood Advisory	CRP	Victoria	62 min
Apr 17, 5:59 PM CDT	Severe Thunderstorm Warning	CRP	Live Oak	31 min
Apr 17, 6:28 PM CDT	Severe Thunderstorm Warning	CRP	Goliad	32 min
Apr 17, 6:47 PM CDT	Tornado Warning	CRP	Bee	28 min

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.