Alert archive / Texas / Flash Flood Warnings in 1986

Flash Flood Warning 29, NWS Shreveport, LA

June 27, 1986Shelby County, Texas

NWS Shreveport, LA issued this flash flood warning at Jun 27, 1986, 8:05 PM CDT for Shelby County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 27, 1986, 8:05 PM CDT (01:05 UTC)
Expired
Jun 27, 1986, 11:30 PM CDT
In force
3 hr
Issued by
NWS Shreveport, LA
Area
Whole counties

County Shelby 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, 1.1 hours before the alert went out and 75 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 1986-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1986-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

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, Jun 27, 4:02 PM CDT, 4 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
355PM CDT FRI JUN 27 1986

ISOLATED STRONG THUNDERSTORMS OVER SOUTHWEST ARKANSAS AND NORTHEAST
TEXAS...MAY PRODUCE LOCAL HIGH WIND GUSTS ALONG WITH VERY HEAVY RAIN
FALL.

AT 355 PM CDT THE NATIONAL WEATHER SERVICE RADAR INDICATED VERY HEAVY
THUNDERSTORMS IN THE AREA FROM NORTHWEST OF MURFREESBORO ARKANAS TO
SOUTHEAST OF MURFREESBORO. ALSO...FROM 15 MILES WEST OF TEXARKANA TO
SOUTH OF PARIS TEXAS.

VERY STONG STORMS NEAR MURFREESBORO AND NEAR NEW BOSTON AND DEKALB
TEXAS WEST OF TEXARKANA...THESE STORMS COULD PRODUCE HIGH WINDS...
EXCEEDING 50 MPH ALONG WITH RAINFALL EXCEEDING TWO INCHES IN A SHORT
PERIOD OF TIME AND MAY PRODUCE FLOODING. THESE STORMS WERE MOVING
SLOWLY EAST SOUTHEAST.

NUMEROUS SHOWERS ALONG WITH ISOLATED THUNDERSTORMS CONTINUE OVER SOUTH
CENTRAL ARKANSAS ACROSS NORTHCENTRAL AND NORTHEAST LOUISIANA. VERY
HEAVY RAINFALL STILL OCCURRING OVER NORTHERN COLUMBIA AND SOUTHERN
NEVADA COUNTIES IN SOUTHCENTRAL ARKANSAS.

A FLASH FLOOD WARNING REMAINS IN EFFECT FOR COLUMBIA AND NEVADA
COUNTIES THROUGH 530 PM CDT. STORM RAINFALL TOTALS WILL EXCEED
FIVE INCHES..FLOODING WILL CONTINUE TO DEVELOP..AFFECTING ROADWAYS.

A FLASH FLOOD WATCH WILL BE CONTINUED THROUGH TONIGHT ACROSS NORTH
CENTRAL AND NORTHEAST LOUISIANA AND THE ADJACENT AREAS OF SOUTH
ARKANSAS.

OVER THE EASTERN TIER OF COUNTIES IN NORTHEAST TEXAS AND NORTHWEST
LOUISIANA...SOME ROADWAYS REMAIN IMPASSABLE IN LOW AREAS DUE TO
BAYOU FLOODING.

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.