Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 50, NWS Brownsville, TX

June 17, 2001Brooks County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Jun 17, 2001, 4:38 PM CDT for Brooks 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 counties it named.

The facts

Issued
Jun 17, 2001, 4:38 PM CDT (21:38 UTC)
Expired
Jun 17, 2001, 5:30 PM CDT
In force
52 min
Issued by
NWS Brownsville, TX
Area
Whole counties

County Brooks County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 9.6 hours before the alert went out and 116 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, Corpus Christi, TX at 12:00Z on 2001-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1859 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, Corpus Christi, TX at 12:00Z on 2001-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 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
1859 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
665 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
-11 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 172139
SVRBRO

TXC047-172230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
438 PM CDT SUN JUN 17 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL BROOKS COUNTY IN DEEP SOUTH TEXAS

* UNTIL 530 PM CDT

* AT 433 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 13 MILES SOUTH OF FALFURRIAS...MOVING WEST AT 5i
  MPH. 

* THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF...
  CENTRAL BROOKS COUNTY.

$$

LAT...LON 2696 9807 2713 9810 2714 9832 2692 9832

JP

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 Jun 17, 3:00 PM CDT, 1 hour 38 minutes earlier.

Area forecast discussion, Jun 17, 3:00 PM CDT, 1 hour 38 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
300 PM CDT SUN JUN 17 2001

SHORT TERM...WATER VAPOR LOOP SHOWING DISTURBANCE OVER NORTHERN
NUEVO LEON MOVING EASTWARD AT MIDDAY. EARLY MORNING MODEL RUNS DID
NOT PICK UP ON THIS FEATURE...HOWEVER ISOLATED SHRA/TSRA ACTIVITY
DEVELOPING WELL WEST OF SEA BREEZE EARLY THIS AFTERNOON IN LOWER
VALLEY. GIVEN THE AMOUNT OF INSTABILITY ON 12Z SOUNDING AND LIFT
ASSOCIATED WITH THIS MID/UPPER LEVEL FEATURE...ISOLATED SHRA/TSRA
MAY BE POSSIBLE IN THE MID AND UPPER VALLEY INTO THE EVENING AND
POSSIBLY THE OVERNIGHT HOURS. WILL CONTINUE TO MONITOR AND ADD POPS
IF NECESSARY AT ISSUANCE TIME. WITH THE LOSS OF
INSOLATION...ACTIVITY MAY QUICKLY DISSIPATE.

SCATTERED AREAS OF SHRA/TSRA OVER THE OFFSHORE WATERS THIS
AFTERNOON. AVN MODEL DEPICTS AN AREA OF WEAK PVA ACROSS THE WESTERN
GULF AND SHIFTS THIS FEATURE WESTWARD BY 6Z TONIGHT. MODELS
CONSISTENT IN SHOWING A WEAKNESS IN THE UPPER RIDGE ACROSS THE
WESTERN GULF.  BY MONDAY MORNING...MESOETA DEVELOPS A WEAK LOW LEVEL
CIRCULATION OVER THE CENTRAL GULF WITH DEEP EASTERLY FLOW IN PLACE
ACROSS DEEP SOUTH TEXAS...EXPECT MOIST ONSHORE FLOW TO
CONTINUE...WITH MAINLY ISOLATED PM SHRA/TSRA INLAND ALONG THE
SEABREEZE AND THE POSSIBILITY OF EARLY MORNING CONVECTION ALONG THE
COAST.

EXTENDED...AVN/MRF CONTINUE TO SHOW ZONAL FLOW THROUGH THURSDAY
BEFORE SYSTEM OVER THE NORTHEAST LAKES REGION BREAKS THE RIDGE AXIS
DOWN AND SHIFTS IT WESTWARD. FURTHER SOUTH...MODELS SHOWING LOW
LEVEL TROUGH SLIDING WESTWARD ALONG THE SOUTHERN PERIPHERY OF THE
CENTRAL PLAINS RIDGE.  INCREASING MOISTURE MAY LEAD TO INCREASED
SHRA/TSRA ACTIVITY TOWARD THE END OF THE WEEK. CYCLONIC SPIN ALSO
NOTED OVER THE BAY OF CAMPECHE EAST OF VERACRUZ...THIS FEATURE WAS
MOVING TOWARD THE WEST AT THIS TIME.

MARINE...CURRENTLY 3 FEET SEAS OFFSHORE WITH NORTHEAST WIND NEAR
8 KNOTS. WINDS AND SEAS TO REMAIN RELATIVELY LIGHT THROUGH THE
PERIOD WITH A LIGHT TO MODERATE EASTERLY FLOW PREVAILING.

PRELIMINARY NUMBERS...
BRO BB 074/092 074/092 074 02020
HRL BB 072/093 072/093 073 02020
MFE BB 073/095 073/094 073 210105
RGC BB 071/098 071/099 072 21010
SPI BB 076/086 076/086 086 22111

PUBLIC-SYNOPTIC MWM (55)/AVIATION-MARINE...CORDERO (64)
MESO...DAPM

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

.BRO...NONE.

Nearby

Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001

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.