Alert archive / Texas / Tornado Warnings in 2010

Tornado Warning 2, NWS Brownsville, TX

May 18, 2010Hidalgo County, Texas

NWS Brownsville, TX issued this tornado warning at May 18, 2010, 8:29 AM CDT for Hidalgo County, Texas. It was in force for 20 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: May 18, 2010, 8:29 AM CDT (13:29 UTC)
Expired: May 18, 2010, 8:49 AM CDT
In force: 20 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon

County Hidalgo County, TX

The radar

The Brownsville radar (KBRO), 104 km from the middle of the area, began a volume at 13:30 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
May 18, 6:11 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 1.5 hours before the alert went out and 107 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: 3739 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 478 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

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

125 
WFUS54 KBRO 181329
TORBRO
TXC215-181400-
/O.NEW.KBRO.TO.W.0002.100518T1329Z-100518T1400Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
829 AM CDT TUE MAY 18 2010

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL HIDALGO COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 900 AM CDT

* AT 829 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER LINN...MOVING SOUTHEAST AT 5 MPH.

* THE TORNADO WILL BE NEAR...
  RED GATE BY 900 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF CAUGHT OUTSIDE...MOVE INTO A STURDY BUILDING. AS A LAST RESORT...
SEEK SHELTER IN A CULVERT...DITCH...OR LOW SPOT...AND COVER YOUR HEAD
WITH YOUR HANDS.

DO NOT USE YOUR VEHICLE TO OUTRUN A TORNADO. VEHICLES MAY BE MOVED BY
THE STRONG WINDS. IF YOU ARE IN THE PATH OF A TORNADO...LEAVE THE
VEHICLE AND GET IN A DITCH OR LOW SPOT...BUT WATCH FOR RISING WATERS.

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 2665 9822 2654 9804 2644 9810 2652 9829
TIME...MOT...LOC 1329Z 296DEG 4KT 2655 9818

$$

MARTIN

1 follow-up statement

504 
WWUS54 KBRO 181349
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
849 AM CDT TUE MAY 18 2010

TXC215-181359-
/O.CAN.KBRO.TO.W.0002.000000T0000Z-100518T1400Z/
HIDALGO-
849 AM CDT TUE MAY 18 2010

...THE TORNADO WARNING FOR CENTRAL HIDALGO COUNTY IS CANCELLED...

AT 849 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE TORNADO THAT PROMPTED THE WARNING HAD EXITED...THUS THE WARNING
HAS BEEN CANCELLED.

DOPPLER RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY
WINDS WERE STILL POSSIBLE FROM THE THUNDERSTORM.


LAT...LON 2665 9822 2654 9804 2644 9810 2652 9829
TIME...MOT...LOC 1349Z 296DEG 4KT 2654 9816

$$

59

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 4:41 AM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg	94 min
May 18, 5:20 AM CDT	Severe Thunderstorm Warning	BRO	Zapata	55 min
May 18, 6:16 AM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg, Starr, Zapata	59 min
May 18, 7:17 AM CDT	Special Marine Warning	BRO		43 min
May 18, 8:01 AM CDT	Special Marine Warning	BRO		44 min
May 18, 8:04 AM CDT	Areal Flood Advisory	BRO	Brooks	56 min
May 18, 8:37 AM CDT	Tornado Warning	BRO	Cameron	17 min
May 18, 8:57 AM CDT	Tornado Warning	BRO	Willacy	33 min
May 18, 9:07 AM CDT	Flash Flood Warning	BRO	Hidalgo	53 min
May 18, 9:20 AM CDT	Severe Thunderstorm Warning	BRO	Cameron, Willacy	55 min
May 18, 9:32 AM CDT	Special Marine Warning	BRO		88 min
May 18, 9:52 AM CDT	Areal Flood Advisory	BRO	Cameron	53 min
May 18, 9:59 AM CDT	Areal Flood Advisory	BRO	Willacy	61 min
May 18, 10:13 AM CDT	Severe Thunderstorm Warning	BRO	Cameron	32 min
May 18, 11:08 AM CDT	Special Marine Warning	BRO		52 min

Nearby

Tornado Warnings in Texas, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.