Alert archive / Texas / Flash Flood Warnings in 1986

Flash Flood Warning 18, NWS Fort Worth, TX

April 5, 19865 counties in Texas

NWS Fort Worth, TX issued this flash flood warning at Apr 5, 1986, 2:53 AM CST for 5 counties in Texas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Apr 5, 1986, 2:53 AM CST (08:53 UTC)
Expired
Apr 5, 1986, 7:00 AM CST
In force
4 hr
Issued by
NWS Fort Worth, TX
Area
Whole counties

Counties Collin County, TX, Hopkins County, TX, Hunt County, TX, Rains County, TX, Rockwall 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

Longview/Gregg, TX (KGGG), launched 00:00Z, 8.9 hours before the alert went out and 159 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, Longview/Gregg, TX at 00:00Z on 1986-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2157 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Longview/Gregg, TX at 00:00Z on 1986-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.19395878Sfc1 km3 km6 km9 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
2157 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1179 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.7

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 flash flood 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 4, 9:16 PM CST, 5 hours 37 minutes before
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Special weather statement, Apr 4, 11:08 PM CST, 3 hours 45 minutes before
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Local storm report, Apr 4, 11:54 PM CST, 2 hours 59 minutes before
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Local storm report, Apr 4, 11:59 PM CST, 2 hours 54 minutes before
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Special weather statement, Apr 5, 12:03 AM CST, 2 hours 50 minutes before
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Special weather statement, Apr 5, 12:54 AM CST, 1 hour 59 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 6:14 PM CSTSevere Thunderstorm WarningFWDDallas61 min
Apr 4, 6:40 PM CSTSevere Thunderstorm WarningFWDKaufman65 min
Apr 4, 7:25 PM CSTSevere Thunderstorm WarningFWDVan Zandt65 min
Apr 4, 7:29 PM CSTSevere Thunderstorm WarningFWDTarrant61 min
Apr 4, 7:49 PM CSTSevere Thunderstorm WarningFWDHopkins, Rains56 min
Apr 4, 8:35 PM CSTTornado WarningFWDVan Zandt55 min
Apr 4, 9:03 PM CSTSevere Thunderstorm WarningFWDWood57 min
Apr 4, 10:20 PM CSTFlash Flood WarningFWDRed River4 hr
Apr 5, 12:20 AM CSTFlash Flood WarningFWDHunt, Rockwall3 hr
Apr 5, 12:20 AM CSTFlash Flood WarningFWDHopkins3 hr
Apr 5, 12:53 AM CSTSevere Thunderstorm WarningFWDFranklin, Hopkins67 min
Apr 5, 1:28 AM CSTSevere Thunderstorm WarningFWDCamp, Titus62 min
Apr 5, 2:53 AM CSTFlash Flood WarningFWDCamp, Franklin, Morris, Titus4 hr
Apr 5, 4:48 AM CSTSevere Thunderstorm WarningFWDSmith57 min
Apr 5, 5:14 AM CSTFlash Flood WarningFWDHenderson, Smith, Van Zandt4 hr
Apr 5, 12:00 PM CSTFlash Flood WarningFWDHenderson, Smith115 min

Nearby

Flash Flood Warnings in Texas, 1986Every flash flood 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; the sounding from the Mesonet's radiosonde archive.