Alert archive / Florida / Flash Flood Warnings in 1995

Flash Flood Warning 13, NWS Jacksonville, FL

October 12, 1995Marion County, Florida

NWS Jacksonville, FL issued this flash flood warning at Oct 12, 1995, 1:42 AM EDT for Marion County, Florida. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Oct 12, 1995, 1:42 AM EDT (05:42 UTC)
Expired: Oct 12, 1995, 8:30 AM EDT
In force: 7 hr
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Marion County, FL

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 5.7 hours before the alert went out and 148 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 108 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 580 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 45 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 KJAX 120544
FFWJAX
BULLETIN-EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE, FL
142 AM EST THU OCT 12 1995
FLC083-121230-

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  830 AM EDT
FOR PERSONS IN THE FOLLOWING LOCATIONS ...

IN NORTH FLORIDA

   ...WESTERN MARION COUNTY

AT 142 AM EDT...MARION COUNTY SHERIFFS OFFICE REPORTED THAT FLOODING
WAS CONTINUING TO THE WEST AND SOUTHWEST OF OCALA. REPORTS FROM AROUND
THE AREA INDICATED THAT SEVERAL ROADS WILL REMAIN CLOSED THROUGH THE
EARLY MORNING HOURS. NO FURTHER PRECIPITATION IS EXPECTED...LOCALIZED
FLOODING CONDITIONS WILL IMPROVE SLOWLY THROUGH THE MORNING HOURS.
BE ESPECIALLY CAUTIOUS AT TNIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS.  IF FLOODING IS OBSERVED...ACT QUICKLY.
MOVE UP TO ESCAPE FLOOD WATERS.  DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

K. KUYPER

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.

NWS Jacksonville, FL wrote its last area forecast discussion before this flash flood warning went out at Oct 11, 2:45 PM EDT, 10 hours 57 minutes earlier.

Area forecast discussion, Oct 11, 2:45 PM EDT, 10 hours 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
230 PM EDT WED OCT 11 1995

PLNTY OF SHWR/TSTM ACTVTY DVLPG ALG FNTL BNDRY FM SGJ AND DAB TO OCF
AND GNV AND CONTG TO N OF TPA. XPCT THIS ACTVTY TO DRFT N AND NE THRU
ERY TNGT BEFORE DMSHG. W/ PCP WTR WELL OVR 2" XPCT FLOODING RNS IN
SOME TSTMS. DO NOT THINK ACTVTY WILL MAKE IT TO JAX...SO HIEST POPS
IN LKLY CAT SHUD BE FOR FL CO'S S OF JAX FOR ERY TNGT BEFORE ACTVTY
DIES OUT.

MNWHL...PERSISTANT AREA OF RN FM VAD TO W OF AMG CONTS...W/ NOT MUCH
HAPPENING BTWN THIS ACTVTY AND THAT TO THE SE AND S OF JAX. BUT XPCT
INCRS IN CVR ACRS THESE AREAS THRU ERY TNGT (20 OR 30% POPS). ONSHR
FLOW THEN XPCTD TO RETURN UP TO AT LEAST H7 BY 24 HRS...SO XPCT AT
LEAST SOME POPS ACRS CSTL CO'S LTR TNGT (20% OR 30% POPS).

MSTR FM OFF ATLC WILL THEN CONT THRU REST OF FCST PERIOD MAINTAINING
XTNSV CLD CVR IN SE GA AND XTRM NE FL...PLUS THERE IS ALSO NRLY STNRY
FNTL BNDRY OVR S SECTIONS OF NE FL TO FOCUS THE CONVECTION. XPCT POPS
TO CONT ABV NRML THRU FCST PERIOD AND WILL MAKE ADJUSTMENTS TO FWC
POPS. ALSO FWC TEMPS NEED TO BE FINE-TUNED AND I SUGGEST A LTL BIT
OF A RANGE IN TEMPS ALG CSTL CO'S DURG NGT W/ ONSHR FLOW. ONLY 78 FOR
A LO THIS MRNG AT NRB W/ 74 AT BOTH JAX BEACH AND NIP.

MAY ALSO BE PATCHY FOG LTR TNGT AND ERY THU MRNG...SPCLY ACRS INLAND
CO'S NOT INFLUENCED AS MUCH BY ONSHR FLOW.

CWF LUKS A LTL LO ON WNDS FOR TNGT AND THU...BUT I AGREE W/ PREVIOUS
FCSTS OF vDIVIDING THE AREA UP INTO 3 GROUPINGS.

SSI 071/078 071/078 071 15232
JAX 072/079 072/081 072 15343
GNV 072/082 071/083 071 15353

MOHLIN

Nearby

Flash Flood Warnings in Florida, 1995 Every flash flood warning in 1995

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.