Alert archive / Texas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 2, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at May 6, 1987, 2:02 AM CDT for Cameron County, Texas. It was in force for 58 min.
The area
The counties it named.
The facts
- Issued
- May 6, 1987, 2:02 AM CDT (07:02 UTC)
- Expired
- May 6, 1987, 3:00 AM CDT
- In force
- 58 min
- Issued by
- NWS Brownsville, TX
- Area
- Whole counties
County Cameron County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Brownsville Intl, TX (KBRO), launched 00:00Z, 7.0 hours before the alert went out and 29 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.
- Mixed-layer CAPE
- 1975 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 670 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBRO 060702
SVRBRO
TXC061-060800-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
ISSUED BY SAN ANTONIO TX
202 AM CDT WED MAY 6 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 300 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH TEXAS
...CAMERON
AT 2 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER THE CITY OF
BROWNSVILLE MOVING TOWARD THE NORTH AT 15 MPH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...HAIL
3/4 INCH OR MORE IN DIAMETER...FREQUENT LIGHTNING AND VERY HEAVY
RAIN.
PLEASE LISTEN TO YOUR LOCAL RADIO...TV OR NOAA WEATHER RADIO STATION
FOR LATER STATEMENTS OR WARNINGS REGARDING THIS SEVERE WEATHER EVENT.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.
In the hours before
Special weather statement, May 6, 1:06 AM CDT, 56 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BROWNSVILLE TX 105 AM CDT WED MAY 6 1987 AT 100 AM CDT BROWNSVILLE WEATHER RADAR INDICATED STRONG THUNDERSTORMS ALONG THE LOWER TEXAS COAST WITHIN 5 MILES OF BROWNSVILLE EXTENDING 30 MILES NORTHEAST THROUGH SOUTHEAST OF BROWNSVILLE. THESE STORMS ARE STILL DEVELOPING AND MOVEMENT IS VARIABLE AT THIS TIME. THESE THUNDERSTORMS WILL LIKEY CAUSE STRONG GUSTY WINDS...DANGEROUS LIGHTNING...AND VERY HEAVY RAINS IN CAMERON COUNTY AND IN COASTAL WATERS OF THE GULF.
Special weather statement, May 6, 1:47 AM CDT, 15 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BROWNSVILLE TX 146AM CDT WED MAY 6 1987 ....VERY HEAVY THUNDERSTORMS ALONG THE LOWER TEXAS COAST.... AT 132 AM CDT BROWNSVILLE WEATHER RADAR INDICATED A LINE 10 MILES WIDE... OF VERY HEAVY THUNDERSTORMS ALONG THE LOWER TEXAS COAST...FROM 80 MILES NORTHEAST TO 15 MILES EAST AND TO 125 MILES SOUTHEAST OF BROWNSVILLE. RESIDENTS ALONG THE COASTAL SECTIONS OF CAMERON AND WILLACY COUNTIES COULD EXPECT HEAVY RAINS...FREQUENT LIGHTING AND GUSTY WINDS AS THUNDERSTORMS CONTINUED TO DEVELOPED. OTHER SHOWERS AND THUNDERSTORMS CONTINUED OVER THE VALLEY AND NORTHEAST MEXICO...FROM CIUDAD VICTORIA TO BROWNSVILLE AND EXTENDED OFFSHORE FOR 125 MILES. MOVEMENT WAS NORTH AT 20 MILES NORTH.
Nearby
Severe Thunderstorm Warnings in Texas, 1987Every severe thunderstorm warning in 1987
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.