Alert archive / Florida / Flash Flood Warnings in 1987

Flash Flood Warning 2, NWS Tallahassee, FL

August 13, 1987Escambia County, Florida

NWS Tallahassee, FL issued this flash flood warning at Aug 13, 1987, 9:17 AM CDT for Escambia County, Florida. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Aug 13, 1987, 9:17 AM CDT (14:17 UTC)
Expired
Aug 13, 1987, 1:15 PM CDT
In force
4 hr
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Escambia County, FL

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

Boothville, LA (KBVE), launched 12:00Z, 2.3 hours before the alert went out and 244 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, Boothville, LA at 12:00Z on 1987-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1759 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, Boothville, LA at 12:00Z on 1987-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -54 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
1759 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
635 m above ground
0-6 km bulk shear
1 kt
0-1 km storm-relative helicity
-54 m²/s²
0-3 km storm-relative helicity
-29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KPNS 131435 COR
FFWPNS
FLC033-131815-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE PENSACOLA FL
917 AM CDT THU AUG 13 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL  115 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...

IN NORTHWEST FLORIDA
          ...SOUTHERN ESCAMBIA

RAINFALL TOTALS IN EXCESS OF EIGHT INCHES HAVE BEEN REPORTED OVER
THE SOUTHERN PORTION OF ESCAMBIA COUNTY SINCE MIDNIGHT. SEVERAL
ROADWAYS ARE ALREADY IMPASSABLE AND NEIGHBORHOODS ALONG DOG TRACK
ROAD IN THE WESTERN SECTION OF PENSACOLA HAVE REPORTED RISING WATER
APPROACHING HOUSES.
ADDITIONAL RAINFALL UPWARDS OF FOUR INCHES IS POSSIBLE OVER THE NEXT
FEW HOURS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A
SMALL ONE...ON FOOT.

Nearby

Flash Flood Warnings in Florida, 1987Every flash flood warning 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.