Alert archive / Texas / Tornado Warnings in 1987
Tornado Warning 10, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Nov 16, 1987, 6:35 AM CST for Galveston County, Texas. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Nov 16, 1987, 6:35 AM CST (12:35 UTC)
- Expired
- Nov 16, 1987, 7:05 AM CST
- In force
- 30 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Galveston 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
Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.6 hours before the alert went out and 180 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
- 1739 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 554 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 323 m²/s²
- 0-3 km storm-relative helicity
- 366 m²/s²
- Significant tornado parameter
- 2.4
- Supercell composite
- 12.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 16, 2:04 AM CST, 4 hours 31 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE GALVESTON TX 200 AM CST MON NOV 16 1987 ....THE TORNADO WATCH FOR GALVESTON AND CHAMBERS COUNTIES AND THE ADJACENT COASTAL WATERS HAS EXPIRED... WEATHER SERVICE RADAR INDICATES THAT THE STRONG THUNDERSTORMS HAVE MOVED NORTHEAST AND OUT OF THE AREA...HOWEVER OTHER THUNDERSTORMS ARE DEVELOPINAG WELL TO THE WEST AND COULD MOVE INTO THE AREA LATER TODAY. ...A FLASH FLOOD WATCH FzOR GALVESTON AND CHAMBERS COUNTIES REMAINS IN EFFECT THROUGH TODAY...
Special weather statement, Nov 16, 2:06 AM CST, 4 hours 29 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GALVESTON TX 200 AM CST MON NOV 16 1987 ....THE TORNADO WATCH FOR GALVESTON AND CHAMBERS COUNTIES AND THE ADJACENT COASTAL WATERS HAS EXPIRED... WEATHER SERVICE RADAR INDICATES THAT THE STRONG THUNDERSTORMS HAVE MOVED NORTHEAST AND OUT OF THE AREA...HOWEVER OTHER THUNDERSTORMS ARE DEVELOPINAG WELL TO THE WEST AND COULD MOVE INTO THE AREA LATER TODAY . ...A FLASH FLOOD WATCH FOR GALVESTON AND~ CHAMBERS COUNTIES REMAINS IN EFFECT THROUGH TODAY...
Special weather statement, Nov 16, 3:08 AM CST, 3 hours 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 310 AM CST MON NOV 16 1987 ...A TORANDO WATCH IS IN EFFECT FOR A LARGE PART OF SOUTH TEXAS WEST OF HOUSTON UNTIL 800 AM CST... THE TORNADO WATCH US ALONG AND 70 MILES EITHER SIDE OF A LINE FROM 70 MILES WEST OF COTULLA TO COLLEGE STATION AND INCLUDES THE FOLLOWING COUNTIES...AUSTIN...COLORADO..FORT BEND...WALLER...WASHINGTON...AND WHARTON. NO THUNDERSTORMS THREATEN THE ABOVE COUNTIES AT THIS TIME BUT NUMEROUS SEVERE THUNDERSTORMS HAVE BEEN REPORTED IN THE WESTERN PART OF THE WATCH AREA. THEY ARE EXPECTED TO MOVE EASTWARD AND WILL THREATEN THESE COUNTIES LATER THIS MORNING. ...A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTHEAST TEXAS...INCLUDING THE HOUSTON...GALVESTON METROPOLITAN AREA...THROUGH TODAY.
Special weather statement, Nov 16, 4:27 AM CST, 2 hours 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 424 AM CST MON NOV 16 1987 ...A TORANDO WATCH IS IN EFFECT FOR A LARGE PART OF SOUTH TEXAS WEST OF HOUSTON UNTIL 800 AM CST... THE TORNADO WATCH US ALONG AND 70 MILES EITHER SIDE OF A LINE FROM 70 MILES WEST OF COTULLA TO COLLEGE STATION AND INCLUDES THE FOLLOWING COUNTIES...AUSTIN...COLORADO..FORT BEND...WALLER...WASHINGTON...AND WHARTON. RADAR SHOWS THAT STRONG THUNDERSTORMS HAVE DEVELOPED WEST OF COLORADO COLORADO. THESE THUNDERSTORMS WILL BE MONITORED CLOSELY AS THEY MOVE NORTH NORTHEASTWARD ALONG THE WESTERN EDGES OF COLORADO AUSTIN AND WASHINGTON COUNTIES. NUMEROUS SEVERE THUNDERSTORMS HAVE BEEN REPORTED IN AND AROU[ND THE SAN ANTONIO AREA.
Special weather statement, Nov 16, 4:32 AM CST, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 425 AM CST MON NOV 16 1987 ...A TORANDO WATCH IS IN EFFECT FOR A LARGE PART OF SOUTH TEXAS WEST OF HOUSTON UNTIL 800 AM CST... THE TORNADO WATCH IS ALONG AND 70 MILES EITHER SIDE OF A LINE FROM 70 MILES WEST OF COTULLA TO COLLEGE STATION AND INCLUDES THE FOLLOWING COUNTIES...AUSTIN...COLORADO..FORT BEND...WALLER...WASHINGTON...AND WHARTON. RADAR SHOWS THAT STRONG THUNDERSTORMS HAVE DEVELOPED WEST OF COLORADO COUNTY. THESE THUNDERSTORMS WILL BE MONITORED CLOSELY AS THEY MOVE NORTH NORTHEASTWARD ALONG THE WESTERN EDGES OF COLORADO AUSTIN AND WASHINGTON COUNTIES. NUMEROUS SEVERE THUNDERSTORMS HAVE BEEN REPORTED IN AND ARaOUND THE SAN ANTONIO AREA THIS MORNING.
Special weather statement, Nov 16, 6:33 AM CST, 2 minutes before
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</html>The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 16, 6:17 AM CST | Tornado Warning | HGX | Brazoria | 58 min |
| Nov 16, 8:19 AM CST | Severe Thunderstorm Warning | HGX | Harris | 56 min |
| Nov 16, 8:35 AM CST | Severe Thunderstorm Warning | HGX | Brazoria | 55 min |
| Nov 16, 8:45 AM CST | Tornado Warning | HGX | Galveston | 30 min |
| Nov 16, 9:06 AM CST | Severe Thunderstorm Warning | HGX | Chambers, Galveston | 2 hr |
| Nov 16, 9:08 AM CST | Tornado Warning | HGX | Chambers | 30 min |
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.