Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 20, NWS Brownsville, TX

May 2, 2000Brooks County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at May 2, 2000, 11:01 AM CDT for Brooks County, Texas. It was in force for 29 min. No storm report in the archive falls 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.

The facts

Issued
May 2, 2000, 11:01 AM CDT (16:01 UTC)
Expired
May 2, 2000, 11:30 AM CDT
In force
29 min
Issued by
NWS Brownsville, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Brooks County, TX

The radar

The Corpus Christi radar (KCRP), 99 km from the middle of the area, began a volume at 16:04 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

Corpus Christi, TX (KCRP), launched 12:00Z, 4.0 hours before the alert went out and 109 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 2000-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1319 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 2000-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -38 square meters per square second.193958Sfc1 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
1319 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-38 m²/s²
0-3 km storm-relative helicity
-34 m²/s²
Significant tornado parameter
0.0
Supercell composite
-1.5

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KBRO 021603
SVRBRO
TXC047-021630-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1101 AM CDT TUE MAY 2 2000

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

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

* UNTIL 1130 AM CDT

* AT 1059 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES WEST OF FALFURRIAS...MOVING NORTHEAST
  AT 20 MPH. THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE DIME SIZE
  HAIL... AND WINDS IN EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   FALFURRIAS BY 1115 AM CDT.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

LAT...LON 2726 9845 2705 9837 2716 9801 2725 9806

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 May 2, 9:45 AM CDT, 1 hour 16 minutes earlier.

Area forecast discussion, May 2, 9:45 AM CDT, 1 hour 16 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
945 AM CDT TUE MAY 2 2000

OUTFLOW BOUNDARY JUST TO OUR NORTH WILL BE MOVING SOUTH DURING THE
LATE MORNING AND AFTERNOON.  THIS WILL LIKELY BE A TRIGGER FOR
ADDITIONAL THUNDERSTORM ACTIVITY.  WILL GO ALONG WITH CURRENT ZONES
WITH MENTION OF SVR TSMS AS PER SPC DAY 1 DISCUSSION.  OUR VWP
CONTINUES TO SHOW 35-45 KTS OF WIND IN THE LOWEST 10KFT.  THE
MORNING SOUNDING SHOWS GOOD INSTABILITY WHILE THE LATEST MODEL RUNS
SHOW ANOTHER S/W TROF ROTATING AROUND THE SOUTHERN BASE OF MAIN
TROF.  S/W IS CURRENTLY OVER THE BIG BEND AREA BUT VORTICITY
ADVECTION SHOULD BE AFFECTING THE AREA BY AFTERNOON.  THIS ALONG
WITH THE INTERACTION OF THE BOUNDARY SHOULD MAKE FOR AN INTERESTING
AFTERNOON AND EVENING.  THE THING THAT COULD HAPPEN WOULD BE THE
BOUNDARY OUTRUNS THE APPROACHING VORTICITY AND WE SOCKED IN WITH
CLOUDS AND COOLER STABLE AIR.  THAT WOULD KNOCK DOWN OUR POP CHANCES
CONSIDERABLY.

IT DOES LOOK LIKE THE MAIN TROF AXIS WILL BE THROUGH THE AREA BY WED
MORNING SO TOMORROW SHOULD BE MUCH IMPROVED.

WILL BE ISSUING A HWO SHORTLY.

69

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

.BRO...NONE.

In the hours before

Special weather statement, May 2, 10:20 AM CDT, 41 minutes before
TXZ248>257-030000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1020 AM CDT TUE MAY 2 2000

STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED LATE THIS MORNING INTO
THE AFTERNOON HOURS ACROSS MUCH OF DEEP SOUTH TEXAS.  ALREADY BY MID
MORNING...STRONG THUNDERSTORMS WERE BEGINNING TO DEVELOP OVER MIDDLE
PORTIONS OF DEEP SOUTH TEXAS.  AN OUTFLOW BOUNDARY FROM STORMS LAST
NIGHT...ALONG WITH AN APPROACHING UPPER LEVEL STORM SYSTEM...WILL
HELP TRIGGER THE THUNDERSTORMS TODAY.

THE SOUTHEASTERN SECTIONS OF DEEP SOUTH TEXAS IS RECEIVING SUNSHINE
THIS MORNING WHICH WILL ALLOW THE ATMOSPHERE TO FURTHER DESTABILIZE.
THIS WILL ADD TO THE POTENTIAL OF SEVERE WEATHER THIS AFTERNOON.  IN
ADDITION...TEMPERATURES ARE FORECAST TO COOL IN THE MID LEVELS WHICH
WILL INCREASE THE CHANCES FOR LARGE HAIL AND DAMAGING WINDS.
ISOLATED TORNADOES WILL ALSO BE A POSSIBILITY.

SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL IN DEEP SOUTH
TEXAS SHOULD BE ON THE ALERT FOR THE THUNDERSTORM DEVELOPMENT.  ALL
RESIDENTS OF DEEP SOUTH TEXAS SHOULD KEEP UPDATED ON THE WEATHER
THROUGH LOCAL RADIO...TELEVISION...OR CABLE SOURCES...AND NOAA
WEATHER RADIO.

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 7:50 PM CDTSevere Thunderstorm WarningBROHidalgo, Starr40 min
May 1, 8:47 PM CDTSevere Thunderstorm WarningBROBrooks, Hidalgo, Starr43 min
May 1, 8:47 PM CDTSevere Thunderstorm WarningBROJim Hogg43 min
May 1, 9:17 PM CDTTornado WarningBROBrooks, Jim Hogg, Starr28 min
May 2, 1:08 AM CDTTornado WarningBROBrooks37 min
May 2, 1:48 AM CDTSevere Thunderstorm WarningBROBrooks, Kenedy57 min
May 2, 2:37 AM CDTFlash Flood WarningBROBrooks, Kenedy4 hr
May 2, 2:58 AM CDTSevere Thunderstorm WarningBROBrooks, Kenedy62 min
May 2, 4:02 AM CDTSevere Thunderstorm WarningBROBrooks, Kenedy58 min
May 2, 5:00 AM CDTSevere Thunderstorm WarningBROKenedy60 min
May 2, 6:45 AM CDTSevere Thunderstorm WarningBROJim Hogg60 min
May 2, 11:11 AM CDTTornado WarningBROBrooks34 min
May 2, 11:27 AM CDTSevere Thunderstorm WarningBROJim Hogg63 min
May 2, 11:32 AM CDTSevere Thunderstorm WarningBROKenedy58 min
May 2, 11:44 AM CDTSevere Thunderstorm WarningBROBrooks46 min
May 2, 12:31 PM CDTSevere Thunderstorm WarningBROKenedy59 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.