Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 13, NWS Brownsville, TX

April 18, 2016Starr County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Apr 18, 2016, 5:51 PM CDT for Starr County, Texas. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 18, 2016, 5:51 PM CDT (22:51 UTC)
Expired: Apr 18, 2016, 6:45 PM CDT
In force: 54 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Starr County, TX

The radar

The Brownsville radar (KBRO), 146 km from the middle of the area, began a volume at 22:52 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 18, 3:21 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 10.9 hours before the alert went out and 149 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: 831 J/kg
Mixed-layer CIN: -331 J/kg
Mixed-layer LCL: 1456 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

As transmitted.

226 
WUUS54 KBRO 182251
SVRBRO
TXC427-182345-
/O.NEW.KBRO.SV.W.0013.160418T2251Z-160418T2345Z/

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

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN STARR COUNTY IN DEEP SOUTH TEXAS...

* UNTIL 645 PM CDT

* AT 550 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS INDICATED
  A SEVERE THUNDERSTORM LOCATED 7 MILES SOUTHEAST OF VIBORAS...
  MOVING EAST AT 10 MPH.

  HAZARD...PING PONG BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
           DAMAGE TO ROOFS...SIDING...WINDOWS AND PROPERTY. VEHICLE 
           DAMAGE WILL INCLUDE CRACKED OR SHATTERED WINDSHIELDS AND 
           MAJOR DENTS REQUIRING SIGNIFICANT REPAIRS. EXPECT MINOR 
           WIND 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...
  SANTA CATARINA...SANTA ELENA...SAN ISIDRO...LA GLORIA AND DIAMOND O
  RANCH AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2651 9880 2668 9887 2678 9853 2674 9844
      2658 9843
TIME...MOT...LOC 2250Z 248DEG 10KT 2662 9876 

HAIL...1.50IN
WIND...60MPH
 
$$

60

3 follow-up statements

339 
WWUS54 KBRO 182309
SVSBRO

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

TXC427-182345-
/O.CON.KBRO.SV.W.0013.000000T0000Z-160418T2345Z/
STARR TX-
609 PM CDT MON APR 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHEASTERN STARR COUNTY...

AT 608 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM LOCATED 8 MILES WEST OF SANTA CATARINA...OR 10
MILES SOUTHEAST OF VIBORAS...MOVING EAST AT 10 MPH.

HAZARD...TENNIS BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
         DAMAGE TO ROOFS...SIDING...WINDOWS AND PROPERTY. VEHICLE 
         DAMAGE WILL INCLUDE CRACKED OR SHATTERED WINDSHIELDS AND 
         MAJOR DENTS REQUIRING SIGNIFICANT REPAIRS. EXPECT MINOR 
         WIND 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...
SANTA CATARINA...SANTA ELENA...SAN ISIDRO...LA GLORIA AND DIAMOND O
RANCH AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS IS A DANGEROUS STORM. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 2651 9880 2668 9887 2678 9853 2674 9844
      2658 9843
TIME...MOT...LOC 2308Z 267DEG 9KT 2662 9871 

HAIL...2.50IN
WIND...60MPH
 
$$

60

468 
WWUS54 KBRO 182325
SVSBRO

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

TXC427-182345-
/O.CON.KBRO.SV.W.0013.000000T0000Z-160418T2345Z/
STARR TX-
625 PM CDT MON APR 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHEASTERN STARR COUNTY...

AT 624 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
SEVERE THUNDERSTORMS LOCATED ALONG A LINE EXTENDING FROM NEAR SANTA
CATARINA TO 11 MILES EAST OF EL SAUZ...MOVING EAST AT 10 TO 15 MPH.

HAZARD...TENNIS BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
         DAMAGE TO ROOFS...SIDING...WINDOWS AND PROPERTY. VEHICLE 
         DAMAGE WILL INCLUDE CRACKED OR SHATTERED WINDSHIELDS AND 
         MAJOR DENTS REQUIRING SIGNIFICANT REPAIRS. EXPECT MINOR 
         WIND 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...
SANTA CATARINA...SANTA ELENA...SAN ISIDRO...LA GLORIA AND DIAMOND O
RANCH AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THESE ARE DANGEROUS STORMS. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 2651 9880 2668 9887 2678 9853 2674 9844
      2658 9843
TIME...MOT...LOC 2324Z 273DEG 12KT 2665 9864 2657 9868 

HAIL...2.50IN
WIND...60MPH
 
$$

60

416 
WWUS54 KBRO 182345
SVSBRO

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

TXC427-182355-
/O.EXP.KBRO.SV.W.0013.000000T0000Z-160418T2345Z/
STARR TX-
645 PM CDT MON APR 18 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN STARR COUNTY HAS
EXPIRED...
            
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.  HOWEVER SMALL HAIL
AND HEAVY RAIN ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
CENTRAL TEXAS.

LAT...LON 2651 9880 2668 9887 2678 9853 2674 9844
      2658 9843
TIME...MOT...LOC 2341Z 248DEG 10KT 2665 9864 2657 9868 

$$

60

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 9:42 PM CDT	Special Weather Statement	BRO	Zapata	48 min
Apr 18, 4:38 PM CDT	Special Weather Statement	BRO	Brooks, Jim Hogg	82 min
Apr 18, 5:45 PM CDT	Severe Thunderstorm Warning	BRO	Brooks, Jim Hogg	60 min
Apr 18, 5:48 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo	57 min
Apr 18, 5:51 PM CDT	Severe Thunderstorm Warning	BRO	Starr	54 min
Apr 18, 6:14 PM CDT	Special Weather Statement	BRO	Kleberg	76 min
Apr 18, 6:20 PM CDT	Special Weather Statement	BRO	Zapata	55 min
Apr 18, 6:24 PM CDT	Areal Flood Advisory	BRO	Starr	96 min
Apr 18, 6:29 PM CDT	Areal Flood Advisory	BRO	Brooks, Jim Hogg	91 min
Apr 18, 6:31 PM CDT	Severe Thunderstorm Warning	BRO	Starr	29 min
Apr 18, 6:32 PM CDT	Areal Flood Advisory	BRO	Hidalgo	88 min
Apr 18, 6:37 PM CDT	Areal Flood Advisory	BRO	Starr	83 min
Apr 18, 6:47 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Starr	58 min
Apr 18, 6:54 PM CDT	Special Weather Statement	BRO	Brooks	66 min

Nearby

Severe Thunderstorm Warnings in Texas, 2016 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.