Alert archive / Florida / Flash Flood Warnings in 1986

Flash Flood Warning 1, NWS Tallahassee, FL

October 12, 1986Escambia County, Santa Rosa County, Florida

NWS Tallahassee, FL issued this flash flood warning at Oct 12, 1986, 2:39 PM CDT for Escambia County, Santa Rosa County, Florida. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Oct 12, 1986, 2:39 PM CDT (19:39 UTC)
Expired
Oct 12, 1986, 6:00 PM CDT
In force
3 hr
Issued by
NWS Tallahassee, FL
Area
Whole counties

Counties Escambia County, FL, Santa Rosa 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

Apalachicola Mun, FL (KAQQ), launched 12:00Z, 7.7 hours before the alert went out and 233 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, Apalachicola Mun, FL at 12:00Z on 1986-10-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 164 joules per kilogram.LCLLFCEL10008507005003002001001 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, Apalachicola Mun, FL at 12:00Z on 1986-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 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
164 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
588 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPNS 121943 COR
FFWPNS
FLC033-113-122200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD WARNING...CORRECTION
NATIONAL WEATHER SERVICE PENSACOLA FL
239 PM CDT SUN OCT 12 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 500 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

NORTHWEST FLORIDA...SOUTHERN ESCAMBIA AND SOUTHWEST SANTA ROSA

FLOODING HAS BEEN REPORTED IN SEVERAL SECTIONS AROUND PENSACOLA AND
POSSIBLY GULF BREEZE. RAINFALL AMOUNTS OF NEARLY FIVE INCHES HAS
FALLEN AT NAVAL AIR STATION PENSACOLA DURING THE PAST TWO TO THREE
HOURS AND HEAVY RAINFALL CONTINUES.  PERSONS SHOULD MOVE TO HIGHER
LOCATIONS IF FLOODING IS TAKING PLACE IN YOUR AREA. MOTORISTS ARE
URGED TO DELAY TRAVEL UNLESS ABSOLUTELY NECESSARY.

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 12, 6:15 PM CDTFlash Flood WarningTAEOkaloosa45 min

Nearby

Flash Flood Warnings in Florida, 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.