Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 12, NWS Brownsville, TX

May 1, 2000Hidalgo County, Starr County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at May 1, 2000, 7:50 PM CDT for Hidalgo County, Starr County, Texas. It was in force for 40 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: May 1, 2000, 7:50 PM CDT (00:50 UTC)
Expired: May 1, 2000, 8:30 PM CDT
In force: 40 min
Issued by: NWS Brownsville, TX
Area: Whole counties

Counties Hidalgo County, TX, Starr County, TX

The radar

The Brownsville radar (KBRO), 121 km from the middle of the area, began a volume at 00:53 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.

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 00:00Z, 0.8 hours before the alert went out and 124 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: 3237 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 723 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.5

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KBRO 020051
SVRBRO
TXC215-427-020130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
750 PM CDT MON MAY 1 2000

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN HIDALGO COUNTY IN DEEP SOUTH TEXAS
  SOUTHEASTERN STARR COUNTY IN DEEP SOUTH TEXAS

* UNTIL 830 PM CDT

* AT 748 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR SULLIVAN CITY...OR 13 MILES SOUTHEAST OF
  RIO GRANDE CITY...MOVING NORTHEAST AT 20 MPH. THIS SEVERE
  THUNDERSTORM WILL LIKELY PRODUCE DIME SIZE HAIL... AND WINDS IN
  EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTOdRM WILL BE NEAR...
   SULLIVAN CITY BY 755 PM CDT.
   LA JOYA...PENITAS BY 805 PM CDT.
   PALMVIEW BY 815 PM CDT.

$$

LAT...LON 2633 9877 2612 9857 2624 9832 2645 9857

CORDERO

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 1, 1:30 PM CDT, 6 hours 20 minutes earlier.

Area forecast discussion, May 1, 1:30 PM CDT, 6 hours 20 minutes before

DEEP SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
130 PM CDT MON MAY 1 2000

DO NOT PLAN TO CHANGE FORECAST MUCH. STORM CHANCES HERE APPEAR
SIGNIFICANT AS UPPER LOW IN OKLAHOMA MEANDERS SOUTHEAST THE NEXT
SEVERAL DAYS. LOW HAS A CONVECTIVE HISTORY. FOR A PERIOD...BACK SIDE
OF THE LOW WILL BE UNSTABLE BEFORE AIR SUBSIDES AND DRIES WEST OF
THE LOW. BEST CHANCES FOR RAIN HERE SEEM TO BE TONIGHT AND TOMORROW
AS LOW LEVEL GULF AIR FEEDS THE MONSTER ALOFT NEARBY BEFORE
CONVERGENT AREA SHIFTS NORTHEAST TOMORROW AFTERNOOON.

WILL LOWER MARINE FLAGS AS GRADIENT CONTINUES TO WEAKEN.

BRO TB 073/086 070/084 070 62553
MFE TB 072/088 071/088 070 62553
RGC TB 070/089 066/089 067 62553
SPI TB 076/082 075/082 076 62553

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

.BRO...NONE.

In the hours before

Special weather statement, May 1, 3:30 PM CDT, 4 hours 20 minutes before

TXZ248>257-020200-

DEEP SOUTH TEXAS THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE BROWNSVILLE TX
330 PM CDT MON MAY 1 2000

CHANGES FOR THUNDERSTORMS TONIGHT AND TOMORROW MORNING ARE
SIGNIFICANT OVER DEEP SOUTH TEXAS. KEEP CLOSE TABS ON THE WEATHER.

A STRONG UPPER DISTURBANCE OVER NORTH TEXAS THAT HAS HAD A STORMY
HISTORY IS MEANDERING SOUTHEAST. IT WILL BRING STORMY WEATHER THAN
RECENTLY SLAMMED NORTH TEXAS...CLOSER TO DEEP SOUTH TEXAS.

SCATTERED TO WIDESPREAD SHOWERS OR THUNDERSTORMS ARE EXPECTED TO
DEVELOP TONIGHT OVER SOUTH TEXAS AND APPROACH THE DEEP SOUTH. A FEW OF
THESE ARE EXPECTED TO BE SEVERE.

LARGE HAIL...DAMAGING WINDS...AND LOCALLY HEAVY RAIN ARE POSSIBLE.
AND ISOLATED TORNADOES CAN NOT BE RULED OUT EITHER.

SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL IN DEEP SOUTH
TEXAS SHOULD BE ON THE ALERT FOR THE DEVELOPMENT OF SEVERE WEATHER
TONIGHT. ALL RESIDENTS OF DEEP SOUTH TEXAS SHOULD KEEP UPDATED ON
THE WEATHER TODAY 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.

Issued	Product	Office	Counties	Lasted
May 1, 8:47 PM CDT	Severe Thunderstorm Warning	BRO	Brooks, Hidalgo, Starr	43 min
May 1, 8:47 PM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg	43 min
May 1, 9:17 PM CDT	Tornado Warning	BRO	Brooks, Jim Hogg, Starr	28 min
May 2, 1:08 AM CDT	Tornado Warning	BRO	Brooks	37 min
May 2, 1:48 AM CDT	Severe Thunderstorm Warning	BRO	Brooks, Kenedy	57 min
May 2, 2:37 AM CDT	Flash Flood Warning	BRO	Brooks, Kenedy	4 hr
May 2, 2:58 AM CDT	Severe Thunderstorm Warning	BRO	Brooks, Kenedy	62 min
May 2, 4:02 AM CDT	Severe Thunderstorm Warning	BRO	Brooks, Kenedy	58 min
May 2, 5:00 AM CDT	Severe Thunderstorm Warning	BRO	Kenedy	60 min
May 2, 6:45 AM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg	60 min
May 2, 11:01 AM CDT	Severe Thunderstorm Warning	BRO	Brooks	29 min
May 2, 11:11 AM CDT	Tornado Warning	BRO	Brooks	34 min
May 2, 11:27 AM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg	63 min
May 2, 11:32 AM CDT	Severe Thunderstorm Warning	BRO	Kenedy	58 min
May 2, 11:44 AM CDT	Severe Thunderstorm Warning	BRO	Brooks	46 min
May 2, 12:31 PM CDT	Severe Thunderstorm Warning	BRO	Kenedy	59 min

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.