Alert archive / Texas / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 2, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Apr 29, 1989, 7:43 PM CDT for Starr County, Zapata County, Texas. It was in force for 62 min.
The area
The counties it named.
The facts
- Issued
- Apr 29, 1989, 7:43 PM CDT (00:43 UTC)
- Expired
- Apr 29, 1989, 8:45 PM CDT
- In force
- 62 min
- Issued by
- NWS Brownsville, TX
- Area
- Whole counties
Counties Starr County, TX, Zapata 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, 0.7 hours before the alert went out and 183 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
- 3275 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 753 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBRO 300045
SVRBRO
TXC427-505-300145-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
743 PM CDT APR 29 1989
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 845 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH TEXAS
...WESTERN STARR...SOUTHERN ZAPATA
AT 730 PM RADAR SHOWED A SEVERE THUNDERSTORM JUST NORTH OF ROMA MOVING
NORTH AT 30 MPH.
ROMA POLICE REPORTED HAIL... DAMAGING WINDS... AND VERY HEAVY RAIN
FROM THIS THUNDERSTORM BETWEEN 700 AND 730 PM.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND V$ERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.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, Apr 29, 6:03 PM CDT, 1 hour 40 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BROWNSVILLE TX 600 PM CDT SAT APR 29 1989 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FROM 600 PM UNTIL 12 MIDNIGHT CDT FOR ALL OF THE RIO GRANDE VALLEY INCLUDING THE EXTREME SOUTH TEXAS COUNTIES OF CAMERON...WILLACY...KENEDY...HIDALGO...STARR... BROOKS...JIM HOGG...AND ZAPATA.... AT 530 PM CDT...BROWNSVILLE WEATHER RADAR INDICATED SEVERAL THUNDERSTORMS ...SOME WITH VERY HEAVY RAIN EXTENDING FROM NORTH AND EAST OF LAREDO ACROSS THE RIVER INTO MEXICO FROM 125 TO BEYOND 200 MILES WEST OF BROWNSVILLE. OTHER THUNDERSTORMS WERE LOCATED 60 TO 120 MILES SOUTHWEST OF BROWNSVILLE AND THESE THUNDERSTORMS CONTAINED EXTREMELY HEAVY RAIN. LITTLE MOVEMENT WAS INDICATED DURING THE PAST HOUR BUT THE STORMS WERE GROWING RAPIDLY AND SPREADING OUT TO COVER WIDER AREAS. CONDITIONS REMAIN FAVORABLE FOR THE DEVELOPMENT AND STRENGTHENING OF THUNDERSTORMS THIS EVENING ACROSS DEEP SOUTH> TEXAS AND PERSONS SHOULD STAY TUNED TO LOCAL NEWS SOURCES FOR THE LATEST INFORMATION.
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 8:00 PM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg | 60 min |
| Apr 29, 8:58 PM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg, Zapata | 62 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1989Every severe thunderstorm warning in 1989
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.