Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 32, NWS Brownsville, TX

April 16, 2012Cameron County, Willacy County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Apr 16, 2012, 4:06 PM CDT for Cameron County, Willacy County, Texas. It was in force for 39 min. 1 report 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 16, 2012, 4:06 PM CDT (21:06 UTC)
Expired: Apr 16, 2012, 4:45 PM CDT
In force: 39 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon

Counties Cameron County, TX, Willacy County, TX

The radar

The Brownsville radar (KBRO), 43 km from the middle of the area, began a volume at 21:08 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

Time	Report	Where	Remark
Apr 16, 4:20 PM CDT	FUNNEL CLOUD	Rio Hondo, TX	RIO HONDO POLICE REPORTED DIME SIZED HAIL AND 2 FUNNEL CLOUDS.

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.

Issued	Product	Office	Lasted
Apr 16, 3:28 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 9.1 hours before the alert went out and 46 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: 2823 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 536 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 249 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

497 
WUUS54 KBRO 162106
SVRBRO
TXC061-489-162145-
/O.NEW.KBRO.SV.W.0032.120416T2106Z-120416T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
406 PM CDT MON APR 16 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

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

* UNTIL 445 PM CDT

* AT 406 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL...OVER
  HARLINGEN VALLEY AIRPORT...MOVING NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RIO HONDO.
  SANTA MONICA.
  LA LEONA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

QUARTER SIZE HAIL IS LIKELY. MOVE INDOORS IMMEDIATELY.

PLEASE REPORT TORNADOES OR FUNNEL CLOUDS...WINDS OF 58 MPH OR
HIGHER...HAIL THE SIZE OF PENNIES OR LARGER...AND ANY WIND DAMAGE TO
YOUR NATIONAL WEATHER SERVICE IN BROWNSVILLE BY CALLING 956-504-1432.

&&

LAT...LON 2628 9734 2615 9764 2631 9775 2647 9747
TIME...MOT...LOC 2106Z 239DEG 7KT 2628 9761

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 8:18 PM CDT	Severe Thunderstorm Warning	BRO	Zapata	57 min
Apr 15, 8:29 PM CDT	Severe Thunderstorm Warning	BRO	Brooks, Jim Hogg	61 min
Apr 15, 8:52 PM CDT	Areal Flood Advisory	BRO	Zapata	34 min
Apr 15, 9:01 PM CDT	Severe Thunderstorm Warning	BRO	Zapata	59 min
Apr 15, 9:06 PM CDT	Areal Flood Advisory	BRO	Brooks, Jim Hogg	84 min
Apr 15, 9:32 PM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg	58 min
Apr 15, 9:52 PM CDT	Flash Flood Warning	BRO	Jim Hogg	2 hr
Apr 15, 9:57 PM CDT	Severe Thunderstorm Warning	BRO	Starr, Zapata	63 min
Apr 15, 10:20 PM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg, Starr	55 min
Apr 15, 11:11 PM CDT	Severe Thunderstorm Warning	BRO	Starr, Zapata	64 min
Apr 15, 11:15 PM CDT	Severe Thunderstorm Warning	BRO	Starr	60 min
Apr 15, 11:22 PM CDT	Areal Flood Advisory	BRO	Starr	83 min
Apr 16, 12:36 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo	39 min
Apr 16, 1:04 PM CDT	Special Marine Warning	BRO		86 min
Apr 16, 1:57 PM CDT	Severe Thunderstorm Warning	BRO	Kenedy	33 min
Apr 16, 2:21 PM CDT	Areal Flood Advisory	BRO	Hidalgo, Willacy	54 min
Apr 16, 2:29 PM CDT	Special Marine Warning	BRO		61 min
Apr 16, 2:47 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Starr	43 min
Apr 16, 2:58 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Willacy	32 min
Apr 16, 3:19 PM CDT	Areal Flood Advisory	BRO	Hidalgo, Willacy	56 min
Apr 16, 3:25 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo	50 min
Apr 16, 3:30 PM CDT	Special Marine Warning	BRO		60 min
Apr 16, 3:32 PM CDT	Tornado Warning	BRO	Kenedy, Willacy	28 min
Apr 16, 3:44 PM CDT	Areal Flood Advisory	BRO	Hidalgo	61 min
Apr 16, 4:01 PM CDT	Severe Thunderstorm Warning	BRO	Kenedy, Willacy	44 min
Apr 16, 4:16 PM CDT	Severe Thunderstorm Warning	BRO	Willacy	29 min
Apr 16, 4:25 PM CDT	Tornado Warning	BRO	Cameron	35 min
Apr 16, 4:27 PM CDT	Areal Flood Advisory	BRO	Cameron, Willacy	63 min
Apr 16, 4:30 PM CDT	Special Marine Warning	BRO		60 min
Apr 16, 4:56 PM CDT	Tornado Warning	BRO	Cameron	34 min
Apr 16, 5:03 PM CDT	Special Marine Warning	BRO		117 min
Apr 16, 5:28 PM CDT	Severe Thunderstorm Warning	BRO	Cameron	32 min
Apr 16, 5:30 PM CDT	Special Marine Warning	BRO		2 hr
Apr 16, 5:36 PM CDT	Areal Flood Advisory	BRO	Cameron	54 min
Apr 16, 6:58 PM CDT	Special Marine Warning	BRO		62 min

Nearby

Severe Thunderstorm Warnings in Texas, 2012 Every severe thunderstorm warning in 2012

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.