Alert archive / Florida / Flash Flood Warnings in 1996

Flash Flood Warning 1, NWS Tallahassee, FL

August 30, 1996Jackson County, Florida

NWS Tallahassee, FL issued this flash flood warning at Aug 30, 1996, 8:47 PM CDT for Jackson County, Florida. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 30, 1996, 8:47 PM CDT (01:47 UTC)
Expired: Aug 30, 1996, 11:00 PM CDT
In force: 2 hr
Issued by: NWS Tallahassee, FL
Area: Whole counties

County Jackson County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 1.8 hours before the alert went out and 98 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: 328 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: -11 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 KTLH 310151
FFWTLH
FLC063-310400-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
947 PM EDT (847 PM CDT) FRI AUG 30 1996
 
THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL MIDNIGHT EDT (1100 PM CDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST FLORIDA
 
   ...NORTHEASTERN JACKSON COUNTY
 
AS OF 8:45 CDT...NATIONAL WEATHER SERVICE DOPPLER RADARS ESTIMATE THAT
OVER THREE INCHES OF RAIN HAS FALLEN OVER NORTHEASTERN JACKSON COUNTY
NEAR THE COMMUNITIES OF DELLWOOD...TWO EGG...AND GREENWOOD IN THE LAST
HOUR. THE THUNDERSTORM RESPONSIBLE FOR THIS TORRENTIAL DOWNPOUR IS
NEARLY STATIONARY AND WILL LIKELY PRODUCE ANOTHER ONE OR TWO INCHES OF
RAIN IN THE NORTHEASTERN CORNER OF THE COUNTY. THIS AMOUNT OF RAIN WILL
LIKELY CAUSE SOME FLOODING OF LOW LYING AND POOR DRAINAGE AREAS...AS
WELL AS SOME ROADWAYS AND SMALL STREAMS.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGER OF FLOODS. 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.

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 Tallahassee, FL wrote its last area forecast discussion before this flash flood warning went out at Aug 30, 7:53 PM CDT, 54 minutes earlier.

Area forecast discussion, Aug 30, 7:53 PM CDT, 54 minutes before

ALZ065>069-FLZ007>019-026>029-034-GAZ121>131-142>148-155>161-310830-

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
834 PM EDT FRI AUG 30 1996

12Z ETA/NGM RUNS CONT TO INSIST THAT WK SFC RDG IN BETW NEARLY STNRY
SFC LOW OVR LA AND NNWWD MOVG HURCN EDOUARD WILL BECOME A REGION OF
INCRSG STABILITY AND GRADUAL DRYING. WELL...I WILL NOT BE LED DOWN
THAT PRIMROSE PATH AGAIN THIS TIME. EDOUARD IS MOVG PAST FAR ENUF TO E
OF FCST AREA THAT SUBSIDENCE AND DRYING ON WRN PERIPHERY SHOULD REMAIN
WELL TO OUR E. WITH THAT IN MIND...FIND IT HARD TO BELIEVE THAT DEEP
MOISTURE IN PLACE ACRS FCST AREA WILL BE DISPLACED IN NEXT 24 TO 36
HRS AS INDICATED BY ETA. WILL LEAN TWD NGM FOR THIS FCST AS IT KEEPS
DEEPER MOISTURE AT LEAST A BIT FARTHER E AND CLOSER TO N FL. AS FOR
TONITE...XPCT AREAS OF RA/TSRA TO CONT REDVLPG ON OUTFLO BNDRYS FOR
NXT FEW HRS...BUT TO GENERALLY DIMINISH THRU EARLY AM HOURS. THEN...
SHOULD SEE LOW CLDS/FOG ACRS MUCH OF AREA ONCE AGAIN. ON SAT...XPCT
ANOTHER ROUND OF TSRA TO DVLP BY MIDDAY WITH THE BEST LIKELIHOOD ACRS
FL PNHNDL NEAR DEEPER MOISTURE. OTRW...LIKE FWC POPS FOR THE MOST
PART...WITH XCPTN OF VLD AREA WHERE E COAST SEABRZ MAY ONCE AGAIN
PENETRATE WELL INLAND WITH MDT NE FLO BY LATE AFTN...RESULTING IN POP
CLOSER TO 40 OR 50 PCT RANGE.

MOORE

Nearby

Flash Flood Warnings in Florida, 1996 Every flash flood warning in 1996

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.