Alert archive / Texas / Tornado Warnings in 1987
Tornado Warning 8, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Nov 15, 1987, 5:04 PM CST for Grimes County, Texas. It was in force for 26 min.
The area
The counties it named.
The facts
- Issued
- Nov 15, 1987, 5:04 PM CST (23:04 UTC)
- Expired
- Nov 15, 1987, 5:30 PM CST
- In force
- 26 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Grimes 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
Victoria Regiona, TX (KVCT), launched 12:00Z, 11.1 hours before the alert went out and 208 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
- 1923 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 599 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 231 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 2.3
- Supercell composite
- 12.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KHOU 152304
TORHOU
TXC185-152330-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON TX
504 PM CST SUN NOV 15 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 530 PM CST FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHEAST TEXAS
...NORTHERN GRIMES
A TORNADO WAS REPORTED BY THE PUBLIC 5 MILES SOUTH OF IOLA IN GRIMES
COUNTY. THIS STORM IS MOVING TO THE NORTH AT 30 MILES AN HOUR.
THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.What forecasters said that day
The local office's own words before this tornado 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, Nov 15, 2:50 PM CST, 2 hours 14 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE GALVESTON TX 245 PM CST SUN NOV 15 1987 AT 234 PM CST...VERY STRONG THUNDERSTORMS WERE OCCURRING NEAR SOMERVILLE...JUST EAST OF SPRING AND JUST WEST OF CONROE. RESIDENTS OF THESE AREAS SHOULD BE ALERT TO THE POSSIBLITY OF BRIEF HEAVY RAINS...STRONG GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLE HAIL FOR THE NEXT HOUR OR TWO AS THESE VERY STRONG STORMS MOVE NORTH AT 30 MILES AN HOUR. ELSEWHERE...SHOWERS AND WIDELY SCATTERED STRONG THUNDERSTORMS WERE OCCURRING FROM EAGLE LAKE TO HOUSTON INTERNATIONAL AIRPORT... EXTENDING NORTH TO NEAR COLLEGE STATION AND LUFKIN.
Special weather statement, Nov 15, 3:04 PM CST, 2 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 300 PM CST SUN NOV 15 1987 ...A TORNADO WATCH IS IN EFFECT FOR PART OF SOUTHEAST TEXAS UNTIL 800 PM CST... THE TORNADO WATCH INCLUDES THE FOLLOWING COUNTIES...AUSTIN...COLORADO... GRIMES...POLK...SAN JACINTO...WALKER...WALLER...MONTGOMERY AND HARRIS WHICH INCLUDES THE HOUSTON METROPOLITAN AREA. AT 245 PM VERY STRONG THUNDERSTORMS WERE NORTH OF CENTERVILLE AND NORTHEAST OF BRENHAM. OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED ACROSS SOUTHEAST TEXAS. TORNADOS WERE REPORTED IN LEON COUNTY IN ASSOCIATION WITH A SEVERE THUNDERSTORM DURING THE PAST HOUR. CONDITONS ARE FAVAORABLE FOR DEVELOPMENT OF SEVERE WEATHER AND TORNADOS ACROSS MUCH OF SOUTHEAST TEXAS THIS AFTERNOON AND EVENING. PERSONS IN THESE COUNTIES SHOULD BE ALERT FOR RAPID THUNDERSTORM DEVELOPMENT AND BE READY FOR QUICK ACTION. STAY TUNED TO YOUR WEATHER RADIO OR LOCAL RADIO OR T.V. STATIONS FOR LATER STATEMENTS OR POSSABLE WARNINGS.
Special weather statement, Nov 15, 3:46 PM CST, 1 hour 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 346 PM CST SUN NOV 15 1987 ...A TORNADO WATCH IS IN EFFECT FOR SOUTHEAST TEXAS UNTIL 800 PM CST.. THE TORNADO WATCH HAS BEEN EXTENDED TO INCLUDE LIBERTY...WHARTON... FORT BEND...MATAGORDA...BRAZORIA...CHAMBERS...GALVESTON AND THE ADJACENT COASTAL WARTERS. THESE COUNTIES REMAIN IN THE WATCH AREA AUSTIN...COLORADO...GRIMES...POLK...SAN JACINTO...WALKER... WALLER...MONTGOMERY AND HARRIS WHICH INCLUDES THE HOUSTON METROPOLITAN AREA. AT 345 PM VERY STRONG THUNDERSTORMS WERE OCCURRING NEAR MADISONVILLE AND MOVING TO THE NORTHEAST AT 30 MILES AN HOUR. OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED ACROSS SOUTHEAST TEXAS. NO REPORTS OF SEVERE WEATHER IN SOUTHEAST TEXAS HAVE BEEN RECEVED DURING THE PAST HOUR. HOWEVER...CONDITONS ARE FAVAORABLE FOR RAPID DEVELOPMENT OF SEVERE WEATHER AND TORNADOS ACROSS MUCH OF SOUTHEAST TEXAS THIS AFTERNOON AND EVENING. PERSONS IN THESE COUNTIES SHOULD BE ALERT FOR RAPID THUNDERSTORM DEVELOPMENT AND BE READY FOR QUICK ACTION. STAY TUNED TO YOUR WEATHER RADIO OR LOCAL RADIO OR T.V. STATIONS FOR LATER STATEMENTS OR POSSABLE WARNINGS.
Special weather statement, Nov 15, 3:58 PM CST, 1 hour 6 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE GALVESTON TX 350 PM CST SUN NOV 15 1987 AT 335 PM CST...VERY STRONG THUNDERSTORMS WERE OCCURRING SOUTHWEST OF MADISONVILLE...SOUTH OF LAKE LIVINGSTON AND JUST NORTHEAST OF SUGARLAND. RESIDENTS OF THESE AREAS SHOULD BE ALERT TO THE POSSIBLITY OF BRIEF HEAVY RAINS...STRONG GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLE HAIL FOR THE NEXT HOUR OR TWO AS THESE VERY STRONG STORMS MOVE NORTH AT 30 MILES AN HOUR. ELSEWHERE...SHOWERS AND WIDELY SCATTERED STRONG THUNDERSTORMS WERE OCCURRING FROM NEAR EL CAMPO TO WARREN...EXTENDING NORTH TO LUFKIN AND COLLEGE STATION. IN THE GULF...A LARGE AREA OF SCATTERED VERY STRONG THUNDERSTORMS EXTENDED FROM THE SABINE PASS SOUTHWEST FOR 125 MILES.
Special weather statement, Nov 15, 4:50 PM CST, 14 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE GALVESTON TX 445 PM CST SUN NOV 15 1987 AT 430 PM CST...VERY STRONG THUNDERSTORMS WERE SCATTERED OVER EAST TEXAS FROM COLLEGE STATION AND LUFKIN THROUGH CLEVELAND AND KATY TO 10 MILES WEST OF BRAZORIA... WITH MOVEMENT TO THE NORTH AT 30 MILES AN HOUR. THE HEAVIEST RAINFALL WAS OCCURRING IN THE LUFKIN AREA AND OVER ROSENBERG. A TORNADO WATCH CONTINUES IN EFFECT FOR MOST OF SOUTHEAST TEXAS UNTIL 800 PM THIS EVENING AND RESIDENTS OF THESE AREAS SHOULD BE ALERT TO THE POSSIBILITY OF BRIEF HEAVY RAINS...STRONG GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLE HAIL. NUMEROUS VERY STRONG THUNDERSTORMS WERE ALSO EXTENDED FROM lEXTREME SOUTHWEST LOUISIANA INTO THE GULF FROM 10 AND 80 MILES SOUTHWEST OF GALVESTON TO 110 MILES SOUTH OF FREEPORT WITH MOVEMENT TO THE EAST AT 20 MILES AN HOUR.
Special weather statement, Nov 15, 4:58 PM CST, 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 500 PM CST SUN NOV 15 1987 ...A TORNADO WATCH CONTINUES IN EFFECT FOR ALL OF SOUTHEAST TEXAS UNTIL 800 PM CST.. ...A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTHEAST TEXAS THROUGH TONIGHT INCLUDING THE HOUSTON...GALVISTON METROPOLITAN AREA... AT 445 PM VERY STRONG THUNDERSTORMS WERE OCCURRING NORTH OF LAKD LIVINGSOTN AND NEAR LUFKIN. THESE STORMS WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR. OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED ACROSS MOST OF SOUTHEAST TEXAS. NO REPORTS OF SEVERE WEATHER IN SOUTHEAST TEXAS HAVE BEEN RECEVED DURING THE PAST HOUR. HOWEVER...CONDITONS ARE FAVAORABLE FOR RAPID DEVELOPMENT OF SEVERE WEATHER AND TORNADOS ACROSS MUCH OF SOUTHEAST TEXAS THIS AFTERNOON AND EVENING. PERSONS IN THESE COUNTIES SHOULD BE ALERT FOR RAPID THUNDERSTORM DEVELOPMENT AND BE READY FOR QUICK ACTION. STAY TUNED TO YOUR WEATHER RADIO OR LOCAL RADIO OR T.V. STATIONS FOR LATER STATEMENTS OR POSSABLE WARNINGS.
Nearby
Tornado Warnings in Texas, 1987Every tornado warning in 1987Tornadoes 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.