Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Brownsville, TX

April 18, 2016Cameron County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Apr 18, 2016, 10:14 PM CDT for Cameron County, Texas. It was in force for 31 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 18, 2016, 10:14 PM CDT (03:14 UTC)
Expired
Apr 18, 2016, 10:45 PM CDT
In force
31 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Cameron County, TX

The radar

The Brownsville radar (KBRO), 6 km from the middle of the area, began a volume at 03:13 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.

What was reported inside it

TimeReportWhereRemark
Apr 18, 10:16 PM CDTTSTM WND GST 58Harlingen, TX
Apr 18, 10:23 PM CDTTSTM WND DMGHarlingen, TXHARLINGEN POLICE DEPARTMENT REPORTS POWERLINE PARTIALLY DOWN AT THE 1500 BLOCK OF NORTH 25TH STREET DUE TO STRONG THUNDERSTORM WINDS. HARLINGEN FIRE DEPARTMENT ON THE SCENE.
Apr 18, 10:23 PM CDTTSTM WND DMGHarlingen, TXHARLINGEN POLICE DEPARTMENT REPORTS POWERLINES DOWN AT 809 WEST HANSON...1307 NORTH ANN STREET...1506 SOUTH G STREET...629 NORTH 13TH STREET...THE INTERSECTIONS OF TYLER AND L...25TH AND RIO HONDO ROAD...AND GRIMES AND MORGAN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 18, 3:21 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 00:00Z, 3.2 hours before the alert went out and 9 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-pSkew-T log-p diagram, Brownsville Intl, TX at 00:00Z on 2016-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1260 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brownsville Intl, TX at 00:00Z on 2016-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1260 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
947 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
308 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.3

Open this sounding in Storm Lab

The text

As transmitted.

323 
WUUS54 KBRO 190314
SVRBRO
TXC061-190345-
/O.NEW.KBRO.SV.W.0021.160419T0314Z-160419T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1014 PM CDT MON APR 18 2016

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CAMERON COUNTY IN DEEP SOUTH TEXAS...

* UNTIL 1045 PM CDT

* AT 1013 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  SEVERE THUNDERSTORMS LOCATED ALONG A LINE EXTENDING FROM NEAR
  HOLLY BEACH TO STILLMAN MIDDLE SCHOOL...MOVING SOUTH AT 10 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT MINOR DAMAGE TO MOBILE HOMES...SOME ROOFS...SIDING 
           AND SOME FENCES. TREE LIMBS WILL BLOW DOWN AND SMALL 
           TREES WILL BE UPROOTED. DAMAGE TO POWER LINES AND SOME 
           POWER POLES IS EXPECTED. 

* LOCATIONS IMPACTED INCLUDE...
  HARLINGEN...SAN BENITO...LOS FRESNOS...RANCHO VIEJO...RIO HONDO...
  LAURELES...DOWNTOWN BROWNSVILLE...CAMERON PARK...LA PALOMA AND
  SOUTHMOST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 2586 9741 2585 9744 2588 9746 2588 9750
      2590 9750 2589 9752 2594 9755 2601 9765
      2603 9764 2603 9773 2627 9775 2631 9735
      2595 9725 2596 9728 2594 9728 2593 9735
      2591 9737 2587 9736 2584 9738
TIME...MOT...LOC 0313Z 345DEG 10KT 2608 9737 2596 9755 

HAIL...<.75IN
WIND...60MPH
 
$$

60
1 follow-up statement
414 
WWUS54 KBRO 190333
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1033 PM CDT MON APR 18 2016

TXC061-190345-
/O.CON.KBRO.SV.W.0021.000000T0000Z-160419T0345Z/
CAMERON TX-
1033 PM CDT MON APR 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR CAMERON COUNTY...

AT 1031 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
SEVERE THUNDERSTORMS LOCATED ALONG A LINE EXTENDING FROM NEAR
RIVERA HIGH SCHOOL TO ITEC CAMPUS...MOVING SOUTH AT 10 TO 15 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT MINOR DAMAGE TO MOBILE HOMES...SOME ROOFS...SIDING 
         AND SOME FENCES. TREE LIMBS WILL BLOW DOWN AND SMALL TREES 
         WILL BE UPROOTED. DAMAGE TO POWER LINES AND SOME POWER 
         POLES IS EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
HARLINGEN...SAN BENITO...LOS FRESNOS...RANCHO VIEJO...RIO HONDO...
LAURELES...DOWNTOWN BROWNSVILLE...CAMERON PARK...LA PALOMA AND
SOUTHMOST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 2586 9741 2585 9744 2588 9746 2588 9750
      2590 9750 2589 9752 2594 9755 2601 9765
      2603 9764 2603 9773 2627 9775 2631 9735
      2595 9725 2596 9728 2594 9728 2593 9735
      2591 9737 2587 9736 2584 9738
TIME...MOT...LOC 0331Z 347DEG 10KT 2595 9738 2588 9752 

HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 7:21 PM CDTFlash Flood WarningBROStarr114 min
Apr 18, 7:28 PM CDTSpecial Weather StatementBROStarr32 min
Apr 18, 7:43 PM CDTSpecial Weather StatementBROHidalgo47 min
Apr 18, 7:46 PM CDTSevere Thunderstorm WarningBROHidalgo, Starr59 min
Apr 18, 7:56 PM CDTAreal Flood AdvisoryBROHidalgo94 min
Apr 18, 8:07 PM CDTSpecial Marine WarningBRO113 min
Apr 18, 8:18 PM CDTSpecial Weather StatementBROCameron57 min
Apr 18, 8:34 PM CDTSpecial Weather StatementBROWillacy41 min
Apr 18, 8:40 PM CDTSevere Thunderstorm WarningBROCameron1 min
Apr 18, 8:45 PM CDTSevere Thunderstorm WarningBROCameron45 min
Apr 18, 8:56 PM CDTSpecial Weather StatementBROHidalgo49 min
Apr 18, 9:28 PM CDTSpecial Weather StatementBROZapata47 min
Apr 18, 9:29 PM CDTSpecial Weather StatementBROCameron46 min
Apr 18, 9:34 PM CDTSevere Thunderstorm WarningBROZapata56 min
Apr 18, 9:50 PM CDTSpecial Weather StatementBROCameron40 min
Apr 18, 9:57 PM CDTAreal Flood AdvisoryBROCameron93 min
Apr 18, 10:05 PM CDTSpecial Weather StatementBROZapata40 min
Apr 18, 10:14 PM CDTSevere Thunderstorm WarningBROZapata38 min
Apr 18, 10:22 PM CDTAreal Flood AdvisoryBROCameron83 min
Apr 18, 10:45 PM CDTFlash Flood WarningBROCameron2 hr
Apr 18, 10:46 PM CDTSevere Thunderstorm WarningBROCameron44 min
Apr 18, 11:22 PM CDTSpecial Marine WarningBRO53 min
Apr 18, 11:56 PM CDTSpecial Weather StatementBROZapata34 min
Apr 19, 1:19 AM CDTSpecial Weather StatementBROCameron41 min
Apr 19, 2:08 AM CDTSpecial Marine WarningBRO37 min

Nearby

Severe Thunderstorm Warnings in Texas, 2016Every severe thunderstorm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.