Alert archive / Texas / Special Weather Statements in 2017

Special Weather Statement, NWS Brownsville, TX

May 29, 2017Willacy County, Texas

NWS Brownsville, TX issued this special weather statement at May 29, 2017, 2:08 AM CDT for Willacy County, Texas. It was in force for 52 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 29, 2017, 2:08 AM CDT (07:08 UTC)
Expired
May 29, 2017, 3:00 AM CDT
In force
52 min
Issued by
NWS Brownsville, TX

County Willacy County, TX

The radar

The Brownsville radar (KBRO), 77 km from the middle of the area, began a volume at 07:11 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 nearest sounding before it

Brownsville Intl, TX (KBRO), launched 00:00Z, 7.1 hours before the alert went out and 79 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 2017-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3968 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brownsville Intl, TX at 00:00Z on 2017-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.1939Sfc1 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
3968 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
659 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.9

Open this sounding in Storm Lab

The text

As transmitted.

909 
WWUS84 KBRO 290708
SPSBRO

Special Weather Statement
National Weather Service Brownsville TX
208 AM CDT MON MAY 29 2017
 
TXZ251-254-256-290800-
Coastal Willacy TX-Inland Willacy TX-Kenedy TX-
208 AM CDT MON MAY 29 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN KENEDY...EASTERN HIDALGO
AND WILLACY COUNTIES UNTIL 300 AM CDT...

At 207 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Norias to NEAR Yturria to Hargill Elementary.
Movement was east at 30 mph.

Dime size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Raymondville, Lyford, Port Mansfield, Lasara, San Perlita, Port
Mansfield Airport, Willamar, Yturria, Lyford Elementary School and
Lyford City Hall.

A severe thunderstorm watch remains in effect until 300 AM CDT for
Deep South Texas.

LAT...LON 2655 9742 2651 9739 2651 9743 2645 9746
      2637 9744 2636 9786 2643 9786 2645 9800
      2679 9785 2676 9747 2675 9747 2682 9737
      2677 9744 2675 9736 2674 9747 2672 9743
      2672 9747 2656 9743 2656 9735
TIME...MOT...LOC 0707Z 279DEG 27KT 2678 9778 2656 9782 2647 9802 

$$

53-Schroeder

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 10:43 PM CDTSpecial Weather StatementBROZapata62 min
May 28, 11:14 PM CDTAreal Flood AdvisoryBROZapata91 min
May 28, 11:25 PM CDTSevere Thunderstorm WarningBROJim Hogg, Zapata65 min
May 28, 11:41 PM CDTSevere Thunderstorm WarningBROJim Hogg, Starr, Zapata64 min
May 28, 11:49 PM CDTFlash Flood WarningBROZapata86 min
May 29, 12:16 AM CDTAreal Flood AdvisoryBROJim Hogg, Starr89 min
May 29, 12:23 AM CDTSevere Thunderstorm WarningBROBrooks, Hidalgo, Jim Hogg, Starr52 min
May 29, 12:37 AM CDTFlash Flood WarningBROJim Hogg, Starr, Zapata83 min
May 29, 12:43 AM CDTSevere Thunderstorm WarningBROBrooks, Jim Hogg, Kenedy62 min
May 29, 1:03 AM CDTAreal Flood AdvisoryBROBrooks, Starr87 min
May 29, 1:16 AM CDTSevere Thunderstorm WarningBROBrooks, Hidalgo, Kenedy, Starr, Willacy59 min
May 29, 1:27 AM CDTSpecial Weather StatementBROStarr48 min
May 29, 1:43 AM CDTFlash Flood WarningBROBrooks, Hidalgo, Starr92 min
May 29, 1:43 AM CDTSevere Thunderstorm WarningBROBrooks, Kenedy62 min
May 29, 2:24 AM CDTSpecial Weather StatementBROHidalgo36 min
May 29, 2:35 AM CDTSpecial Marine WarningBRO85 min
May 29, 2:45 AM CDTAreal Flood AdvisoryBROCameron, Hidalgo, Willacy90 min
May 29, 2:47 AM CDTSpecial Weather StatementBROKenedy43 min
May 29, 2:53 AM CDTSpecial Weather StatementBROCameron52 min
May 29, 3:07 AM CDTSpecial Weather StatementBROWillacy38 min
May 29, 3:14 AM CDTSpecial Weather StatementBROHidalgo46 min
May 29, 3:41 AM CDTAreal Flood AdvisoryBROCameron, Hidalgo, Willacy64 min
May 29, 3:41 AM CDTSpecial Weather StatementBROCameron64 min
May 29, 3:55 AM CDTSpecial Marine WarningBRO95 min
May 29, 4:37 AM CDTAreal Flood AdvisoryBROCameron53 min
May 29, 4:40 AM CDTSpecial Weather StatementBROCameron50 min
May 29, 5:27 AM CDTSpecial Marine WarningBRO63 min
May 29, 9:15 AM CDTSmall Craft Advisory for WindsBRO3 hr

Nearby

Special Weather Statements in Texas, 2017Every special weather statement in 2017

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.