Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 26, NWS Brownsville, TX

May 26, 2000Zapata County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at May 26, 2000, 6:42 PM CDT for Zapata County, Texas. It was in force for 63 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 26, 2000, 6:42 PM CDT (23:42 UTC)
Expired: May 26, 2000, 7:45 PM CDT
In force: 63 min
Issued by: NWS Brownsville, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 206 km from the middle of the area, began a volume at 23:42 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, 11.7 hours before the alert went out and 219 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: 2030 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 674 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 192 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.

946 
WUUS54 KBRO 262342
SVRBRO
TXC505-270045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
642 PM CDT FRI MAY 26 2000

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ZAPATA COUNTY IN DEEP SOUTH TEXAS

* UNTIL 745 PM CDT

* AT 643 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES SOUTHEAST OF SAN YGNACIO...MOVING
  NORTHEAST AT 5 MPH. THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE
  HAIL TO THE SIZE OF NICKELS... AND WINDS IN EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   SAN YGNACIO BY 710 PM CDT.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM WINDOWS. REMEMBER...SEVERE THUNDERSTORMS PRODUCE LARGE
DAMAGING HAIL...DAMAGING WINDS...FREQUENT CLOUD TO GROUND
LIGHTNING...AND VERY HEAVY RAIN.

LAT...LON 2692 9953 2681 9938 2703 9912 2720 9936

TRS/BM/MC

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 26, 2:50 PM CDT, 3 hours 52 minutes earlier.

Area forecast discussion, May 26, 2:50 PM CDT, 3 hours 52 minutes before

DEEP SOUTH TEXAS FORECAST DISCUSSION...CORRECTED FOR TEMPS
NATIONAL WEATHER SERVICE BROWNSVILLE TX
250 PM CDT FRI MAY 26 2000

LAST FEW IR FRAMES SHOWING CONVECTION STARTING OVR THE LEE OF THE
SIERRA MADRE ORIENTALS NOW. NGM PCPN FIELD FM 12Z TOO FAR SW FM REAL
TIME CONVECTION. MESOETA/ETA INITS BEST...WITH AVN CLOSE BEHIND.
MESOETA/AVN ALL INFER THAT SOME SHRAS COULD MOVE INTO WRN VLY TNGT.
FM CURRENT STLT AND KBRO REF...BELIEVE 10% POPS IN ORDER FOR WRN
VLY. BROAD AREA OF SFC TROFINESS EXTENDS FM NRN TX THRU THE BIG BEND
INTO ADJ MEX NOW. SFC WNDS RESPONDING FM SE AT 20 TO 30 MPH THIS PM.
RECORD HIGH LOW...TIED THIS AM AT 81 DEG F. PREVIOUS RECORD HAS
BEEN AROUND SINCE 1880

UPPER RIDGING FM THE ERN GULF FORCES UPPER TROF TO LIFT NNE...WITH
COL IN UPPER ATM OVR BIG BEND OF TX BY 03Z SUN. UPPER WND FIELD FALL
TO NADA OVR BIG BEND...WITH NE FLOW IN WRN TX INITIATED FM RIDGE OVR
BAJA...AND STRONG SW FLOW AROUND H2 HIGH CENTERED OVR MMTL IN OLE
MEX. AT THE SFC...CF MVS TO MAF-SPS LINE BY 7 PM SAT NGT...WITH
DRYLINE EXTENDING FM ABI...SW THRU THE TX BIG BEND. DEEP S TX
REMAINS IN SE SFC FLOW...DECREASING TO 15 TO 25 MPH SAT...15 TO 20
SUN. THETA-E RICH AIR STREAMS OVR WRN VLY TNGT...SAT NGT AND SUN
NGT. BASICALLY...PACIFIC MSTR IS BEING DRAGGED OVR WRN VLY BY UPPER
FLOW PATTERN. H5 RH FIELD DEMONSTRATES THIS MSTR ADVECTION BEST. TIME
SERIES OF PWATS FM ETA NEVER GET ABOVE 1.55 INCH. UPPER RIDGING FM
NW TAKES OVR BY LATE SUNDAY.

WL KEEP ISOLATED SHRAS IN WRN VLY DURING EACH PD OF FCST. FOLLOW
MESO ETA TEMPS...WHICH HAVE CONSISTENTLY VERIFIED DURING THE PAST
FEW WEEKS. PARTLY CLOUDY AND DRY IN EXTENDED WITH PERSISTENT TEMPS
FM FMRBRO. SE WNDS 15 TO 20 MPH.

MARINE...SCA ALL ZNS FOR TNGT...AND LIKELY SAT. SCA REMAINS OVR ALL
MARINE ZNS WITH CURRENT BOY002 UP TO 8 FT AT 7 SEC WITH SSW WND AT
23 KT. HIGH SFC PRESSURE DEVELOPS OVR THE ADJ GULF MON...BRINGING
WNDS TO NEAR CALM OFFSHORE...WITH MODERATE SE FLOW TO FOLLOW.
SYNOPTIC...PHILO 58/MESO...WANJA 62/HMT...WATKINS

BRO BE 081/092 078/093 078  05/05/05/05
MFE BE 079/093 077/095 077  05/05/05/05
RGC BE 078/100 076/103 076  10/10/10/10
SPI BE 082/088 081/088 081  05/05/05/05

.BRO...SCA TODAY FOR GMZ130-150-155-170-175.

Nearby

Severe Thunderstorm Warnings in Texas, 2000 Every 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.