Alert archive / Texas / Tornado Warnings in 1986
Tornado Warning 20, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Nov 24, 1986, 8:51 PM CST for Polk County, Texas. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Nov 24, 1986, 8:51 PM CST (02:51 UTC)
- Expired
- Nov 24, 1986, 9:45 PM CST
- In force
- 54 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Polk 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 00:00Z, 2.9 hours before the alert went out and 173 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
- 30 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 545 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 203 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAAOO KHOU 250251
TORHOU
TXC373-250345-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON TX
851 PM CST MON NOV 24 1986
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 945 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES:
IN TEXAS
..POLK
WEATHER SERVICE RADAR SHOWED A POSSIBLE TORNADO NEAR ROMAYOR. THE
STORM WAS MOVING NORTHEAST AT 40 TO 50 MILES AN HOUR. ON THIS PATH
THE STORM WILL PASS NEAR CAMP RUBY BY 915 PM.
THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN THE
PATH OF THIS TORNADO MOVE TO SHELTER IMMEDIATELY. IF INSIDE, GO TO
AN INTERIOR ROOM TO AVOID WINDOWS. ABONDON CARS AND MOBILE HOMES FOR
A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
STAY TUNED TO YOUR NOAA WEATHER RADIO OR LOCAL NEWS MEDIA FOR MORE
INFORMATION ON THIS DANGEROUS STORM.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 24, 7:10 PM CST, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GALVESTON TX 710 PM CST MON NOV 24 1986 ...A SEVERE THUNDERSTORM HAS BEEN ISSUED FOR MOST OF SOUTHEAST TEXAS... INCLUDING GALVESTON AND SURROUNDING COUNTIES. THE WATCH EXPIRES AT MIDNIGHT. ...A FLOOD WATCH REMAINS IN EFFECT TONIGHT. STRONG THUNDERSTORMS WERE OCCURRING WEST AND NORTH OF GALVESTON... AND OVER THE COASTAL WATERS. THESE THUNDERSTORMS WILL CONTINUE TO DEVELOP WELL INTO THE NIGHT. A STRONG UPPER LEVEL STORM SYSTEM IS APPROACHING FROM THE WEST. THE THUNDERSTORMS ASSOCIATED WITH THIS UPPER LEVEL SYSTEM WILL PRODUCE VERY HEAVY RAINFALL... SINCE THE GROUND IS ALREADY SATURATED FROM THE HEAVY RAINS OF THE PAST COUPLE OF DAYS... ANY ADDITIONAL HEAVY RAINFALL WILL NOT RUN OFF BUT WILL POOL IN LOW LYING AREAS AND ALONG FEEDER ROADS AND UNDERPASSES. MOTORISTS SHOULD EXERCISE EXTREME CAUTION AND SHOULD NOT DRIVE INTO WATER WHERE THE DEPTH OF THE WATER IN NOT KNOWN. STAY TUNED FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Nov 24, 7:12 PM CST, 1 hour 39 minutes before
SPECIAL WEATHER STATEMENT CORRECTION NATIONAL WEATHER SERVICE GALVESTON TX 710 PM CST MON NOV 24 1986 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MOST OF SOUTHEAST TEXAS... INCLUDING GALVESTON AND SURROUNDING COUNTIES. THE WATCH EXPIRES AT MIDNIGHT. ...A FLOOD WATCH REMAINS IN EFFECT TONIGHT. STRONG THUNDERSTORMS WERE OCCURRING WEST AND NORTH OF GALVESTON... AND OVER THE COASTAL WATERS. THESE THUNDERSTORMS WILL CONTINUE TO DEVELOP WELL INTO THE NIGHT. A STRONG UPPER LEVEL STORM SYSTEM IS APPROACHING FROM THE WEST. THE THUNDERSTORMS ASSOCIATED WITH THIS UPPER LEVEL SYSTEM WILL PRODUCE VERY HEAVY RAINFALL... SINCE THE GROUND IS ALREADY SATURATED FROM THE HEAVY RAINS OF THE PAST COUPLE OF DAYS... ANY ADDITIONAL HEAVY RAINFALL WILL NOT RUN OFF BUT WILL POOL IN LOW LYING AREAS AND ALONG FEEDER ROADS AND UNDERPASSES. MOTORISTS SHOULD EXERCISE EXTREME CAUTION AND SHOULD NOT DRIVE INTO WATER WHERE THE DEPTH OF THE WATER IN NOT KNOWN. STAY TUNED FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Nov 24, 8:26 PM CST, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GALVESTON TX 825 PM CST MON NOV 24 1986 ...A SEVERE THUNDERSTORM WATCH CONTINUES FOR MOST OF SOUTHEAST TEXAS... INCLUDING GALVESTON AND SURROUNDING COUNTIES. THE WATCH EXPIRES AT MIDNIGHT. ...A FLOOD WATCH REMAINS IN EFFECT TONIGHT. STRONG THUNDERSTORMS WERE OCCURRING FROM FREEPORT TO NEAR SANTA FE AND FROM NEAR LA MARQUE TO KEMAH. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE THUNDERSTORMS... HOWEVER THE THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL. SINCE THE GROUND IS ALREADY SATURATED FROM THE HEAVY RAINS OF THE PAST COUPLE OF DAYS... ANY ADDITIONAL HEAVY RAINFALL WILL NOT RUN OFF BUT WILL POOL IN LOW LYING AREAS AND ALONG FEEDER ROADS AND UNDERPASSES. MOTORISTS SHOULD EXERCISE EXTREME CAUTION AND SHOULD NOT DRIVE INTO WATER WHERE THE DEPTH OF THE WATER IN NOT KNOWN. STAY TUNED FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 24, 6:17 PM CST | Severe Thunderstorm Warning | HGX | Washington | 58 min |
| Nov 24, 10:15 PM CST | Severe Thunderstorm Warning | HGX | Chambers, Galveston | 105 min |
| Nov 25, 2:40 PM CST | Flash Flood Warning | HGX | Brazoria, Harris | 80 min |
Nearby
Tornado Warnings in Texas, 1986Every tornado warning in 1986Tornadoes in 1986
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.