Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 28, NWS Brownsville, TX

July 26, 2000Willacy County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Jul 26, 2000, 3:52 PM CDT for Willacy County, Texas. It was in force for 38 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Jul 26, 2000, 3:52 PM CDT (20:52 UTC)
Expired
Jul 26, 2000, 4:30 PM CDT
In force
38 min
Issued by
NWS Brownsville, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Willacy County, TX

The radar

The Brownsville radar (KBRO), 61 km from the middle of the area, began a volume at 20:53 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
Jul 26, 4:00 PM CDTThunderstorm Wind 60 ESan Perlita, TXA farmer estimated strong winds gusting to near 60 mph. These high winds damaged some of his cotton crop and removed tied tarps from some of the cotton bales.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 8.9 hours before the alert went out and 63 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 12:00Z on 2000-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3254 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2000-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 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
3254 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
727 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
188 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.

000 
WUUS54 KBRO 262052 COR
SVRBRO
TXC489-262130-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
352 PM CDT WED JUL 26 2000

CORRECTED TO REMOVE CENTRAL.  WARNING IS FOR ALL OF WILLACY COUNTY.

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

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

* UNTIL 430 PM CDT

* AT 342 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES EAST OF RAYMONDVILLE...MOVING SOUTH AT
  5 MPH. THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE DIME SIZE
  HAIL... AND WINDS IN EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   LYFORD BY 420 PM CDT.

OTHER LOCATIONS IN THE PATH OF THIS STORM INCLUDE...SAN PERLITA.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS...LARGE HAIL...AND FREQUENT CLOUD TO GROUND
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 2655 9755 2657 9779 2623 9785 2620 9753

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Brownsville, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 26, 2:00 PM CDT, 1 hour 52 minutes earlier.

Area forecast discussion, Jul 26, 2:00 PM CDT, 1 hour 52 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
200 PM CDT WED JUL 26 2000

A RIDGE ALOFT CONTINUES TO DOMINATE MOST OF THE FORECAST AREA WITH
SUBSIDING AIR. THERE IS LITTLE IN THE AIRMASS TO STOP CURRENT
BOMBARDMENT OF SUNSHINE WHICH CONTINUES TO COAX AFTERNOON
TEMPERATURES INTO TRIPLE DIGIT NUMBERS OVER MUCH OF DEEP SOUTH
TEXAS. LITTLE CHANGE IS IN STORE FOR MOST.

HOWEVER...A MEDIOCRE TROPICAL LOW IN THE MID AND UPPER LEVELS
REMAINS STATIC AND MOSTLY DORMANT OVER THE WEST GULF OF MEXICO. THE
MEDIOCRE LOW IN COMBINATION WITH A MEDIOCRE SEA BREEZE WERE
RESPONSIBLE FOR A FEW SHOWERS AND THUNDERSTORMS BETWEEN PORT
MANSFIELD AND BAFFIN BAY AND WEST DURING THE AFTERNOON. AS LONG AS
SURFACE WIND REMAINS SOUTH AND SOUTHEAST...WHICH IT IS EXPECTED TO
DO FOR SEVERAL MORE DAYS...THE PRECIPITATION WILL LIKELY REMAIN OVER
NORTH FRINGES WHERE AIR CONVERGES.

IF THE MRF MODEL IS CORRECT...UPPER HIGH PRESSURE NOW BLOCKING THE
GULF LOW FROM WEST MIGRATION...WILL RETROGRADE THIS WEEKEND. POPS
WILL PROBABLY INCREASE A LITTLE ENTIRE AREA THIS WEEKEND AS
INDICATED BY PREVIOUS EXTENDED. SOUTH AND SOUTHEAST BREEZE MAY GIVE
WAY TO EAST AND SOUTHEAST THEN.

MARINE FORECAST UNDERWAY SEEMS APPROPRIATE.

BRO UB 075/096 075/095 075  62000
MFE UB 076/101 076/100 076  62000
RGC UB 074/107 074/105 074  62000
SPI UB 079/090 079/089 079  62000

INTERNET ADDRESS...HTTP://WWW.SRH.NOAA.GOV/BRO

.BRO...NONE.

In the hours before

Special weather statement, Jul 26, 3:23 PM CDT, 29 minutes before
TXZ251-254>257-262115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
323 PM CDT WED JUL 26 2000

...STRONG ISOLATED THUNDERSTORM APPROACHING RAYMONDVILLE...

AT 320 PM CDT...RADAR SHOWED A STRONG THUNDERSTORM PRODUCING VERY
HEAVY RAIN...GUSTY WINDS...AND DANGEROUS LIGHTNING ABOUT 5 MILES
NORTHEAST OF RAYMONDVILLE ALONG THE KENEDY AND WILLACY COUNTY LINE.

THIS STRONG THUNDERSTORM WAS MOVING SOUTHWEST AT 10 MPH.

BE PREPARED FOR WIND GUST TO 45 MPH...AND VERY HEAVY RAIN ESPECIALLY
IF YOU HAVE TO TRAVEL NORTH ON HIGHWAY 77 BETWEEN 330 AND 400 PM CDT.

Nearby

Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning in 2000

Sources

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