Alert archive / Texas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 39, NWS Fort Worth, TX

March 11, 1986Denton County, Tarrant County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 11, 1986, 5:26 PM CST for Denton County, Tarrant County, Texas. It was in force for 64 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 11, 1986, 5:26 PM CST (23:26 UTC)
Expired
Mar 11, 1986, 6:30 PM CST
In force
64 min
Issued by
NWS Fort Worth, TX
Area
Whole counties

Counties Denton County, TX, Tarrant County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Mar 11, 5:45 PM CSTHail 0.75Tarrant, TX
Mar 11, 5:45 PM CSTThunderstorm Wind 0Denton, TX
Mar 11, 6:02 PM CSTHail 0.75Denton, TX
Mar 11, 6:10 PM CSTHail 1Denton, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Fort Sill, OK (KFSI), launched 12:00Z, 11.4 hours before the alert went out and 215 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.

Skew-T log-pSkew-T log-p diagram, Fort Sill, OK at 12:00Z on 1986-03-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Sill, OK at 12:00Z on 1986-03-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 461 square meters per square second.193958Sfc1 km3 km6 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1930 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
461 m²/s²
0-3 km storm-relative helicity
571 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

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 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, Mar 11, 12:56 PM CST, 4 hours 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1255 PM CST TUE MAR 11 1986

...A TORNADO WATCH IS IN EFFECT UNTIL 800 PM CST THIS EVENING FOR
   MOST OF NORTH CENTRAL TEXAS...

AT 1250 PM CST..WEATHER SERVICE RADAR INDICATED A RAPIDLY DEVELOPING
LINE OF STRONG THUNDERSTORMS JUST WEST OF ABILENE. OTHER THUNDERSTORMS
WERE LOCATED OVER NORTHERN COOKE COUNTY ALONG THE RED RIVER. ALL
THUNDERSTORMS WERE MOVING RAPIDLY TOWARD THE NORTHEAST AT 35 MILES AN
HOUR.

PERSONS LIVING IN NORTHERN COOKE COUNTY SHOULD BE PREPARED FOR SUDDEN
STRONG WINDS..DANGEROUS LIGHTNING..AND POSSIBLE HAIL. THIS THUNDERSTORM
WILL LIKELY MOVE NORTH OF THE RED RIVER DURING THE NEXT 30 MINUTES.

RESIDENTS OVER THE REMAINDER OF NORTH TEXAS ARE URGED TO KEEP INFORMED
ABOUT DANGEROUS THUNDERSTORMS DEVELOPING IN YOUR AREA THE REMAINDER OF
THIS AFTERNOON AND TO BE PREPARED TO MOVE TO A PLACE OF SHELTER IF
THREATENING WEATHER IS SIGHTED OR A WAR$NING IS ISSUED FOR YOUR AREA.
Special weather statement, Mar 11, 2:03 PM CST, 3 hours 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
200 PM CST TUE MAR 11 1986

...A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST THIS EVENING
   FOR MOST OF NORTH CENTRAL TEXAS...

AT 200 PM CST..WEATHER SERVICE RADAR INDICATED A RAPIDLY DEVELOPING
LINE OF STRONG THUNDERSTORMS JUST WEST OF ABILENE AND EXTENDING NORTH
TO THE RED RIVER WEST OF WICHITA FALLS. THIS LINE OF STRONG
THUNDERSTORMS IS EXPECTED TO MOVE EASTWARD ACROSS NORTH CENTRAL TEXAS
DURING THE NEXT SEVERAL HOURS. PRESENT MOVEMENT OF THESE THUNDERSTORMS
IS TO THE NORTHEAST AT 40 MILES AN HOUR.

PERSONS LIVING STEPHENS..EASTLAND..PALO PINTO..WISE..COOKE..COMANCHE..
AND ERATH COUNTIES CAN EXPECT THESE THUNDERSTORMS TO MOVE OVER YOUR
AREA DURING THE NEXT COUPLE OF HOURS. THE STRONGEST THUNDERSTORMS
WILL HAVE THE POTENTIAL TO SPAWN VIOLENT TORNADOES..DAMANGING WINDS..
AND LARGE HAIL AS WELL AS VERY HEAVY RAIN AND DEADLY LIGHTNING.
<
RESIDENTS OF NORTH TEXAS ARE URGED TO KEEP INFORMED OF DEVELOPING
THUNDERSTORMS IN YOUR AREA AND TO SEEK REINFORCED SHELTER IF
THREATENING WEATHER IS SIGHTED OR A WARNING IS ISSUED FOR YOUR AREA.

REMEMBER IF A TORNADO WARNING IS ISSUED FOR YOUR LOCATION..ABAdNDON
YOUR CAR OR MOBILE HOME FOR A REINFORCED SHELTER. IF IN BUILDING OR
HOUSE..THE CENTRAL INTERIOR SECTION ON THE LOWEST FLOOR OFFERS THE
BEST POSSIBLE PROTECTION.

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 11, 12:22 PM CSTSevere Thunderstorm WarningFWDMontague33 min
Mar 11, 12:55 PM CSTSevere Thunderstorm WarningFWDKnox60 min
Mar 11, 1:10 PM CSTSevere Thunderstorm WarningFWDFisher, Jones55 min
Mar 11, 1:10 PM CSTSevere Thunderstorm WarningFWDHaskell55 min
Mar 11, 1:50 PM CSTSevere Thunderstorm WarningFWDFoard, Knox40 min
Mar 11, 2:10 PM CSTSevere Thunderstorm WarningFWDBaylor, Haskell, Throckmorton60 min
Mar 11, 2:50 PM CSTSevere Thunderstorm WarningFWDArcher60 min
Mar 11, 2:52 PM CSTSevere Thunderstorm WarningFWDEastland68 min
Mar 11, 3:09 PM CSTSevere Thunderstorm WarningFWDStephens66 min
Mar 11, 3:10 PM CSTSevere Thunderstorm WarningFWDBaylor30 min
Mar 11, 3:29 PM CSTTornado WarningFWDEastland61 min
Mar 11, 3:45 PM CSTTornado WarningFWDPalo Pinto60 min
Mar 11, 3:50 PM CSTSevere Thunderstorm WarningFWDArcher50 min
Mar 11, 3:50 PM CSTSevere Thunderstorm WarningFWDYoung35 min
Mar 11, 4:00 PM CSTSevere Thunderstorm WarningFWDClay, Wichita60 min
Mar 11, 4:06 PM CSTTornado WarningFWDStephens69 min
Mar 11, 4:27 PM CSTSevere Thunderstorm WarningFWDEastland63 min
Mar 11, 4:40 PM CSTSevere Thunderstorm WarningFWDMontague60 min
Mar 11, 4:40 PM CSTTornado WarningFWDPalo Pinto, Parker65 min
Mar 11, 4:50 PM CSTSevere Thunderstorm WarningFWDComanche55 min
Mar 11, 4:54 PM CSTSevere Thunderstorm WarningFWDWise66 min
Mar 11, 5:03 PM CSTSevere Thunderstorm WarningFWDErath57 min
Mar 11, 5:33 PM CSTSevere Thunderstorm WarningFWDCooke57 min
Mar 11, 5:44 PM CSTSevere Thunderstorm WarningFWDHood, Johnson, Somervell61 min
Mar 11, 5:44 PM CSTSevere Thunderstorm WarningFWDErath61 min

Nearby

Severe Thunderstorm Warnings in Texas, 1986Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.