Alert archive / Florida / Flash Flood Warnings in 2002

Flash Flood Warning 9, NWS Tallahassee, FL

September 14, 2002Jefferson County, Madison County, Taylor County, Florida

NWS Tallahassee, FL issued this flash flood warning at Sep 14, 2002, 2:55 PM EDT for Jefferson County, Madison County, Taylor County, Florida. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 14, 2002, 2:55 PM EDT (18:55 UTC)
Expired
Sep 14, 2002, 3:45 PM EDT
In force
50 min
Issued by
NWS Tallahassee, FL
Area
Counties, with a storm outline in the text

Counties Jefferson County, FL, Madison County, FL, Taylor County, FL

The radar

The Tallahassee radar (KTLH), 48 km from the middle of the area, began a volume at 18:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.9 hours before the alert went out and 45 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, Tallahassee Rgnl, FL at 12:00Z on 2002-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1184 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2002-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -46 square meters per square second.193958Sfc1 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
1184 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
757 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-46 m²/s²
0-3 km storm-relative helicity
-102 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 
WGUS52 KTAE 141855
FFWTLH
FLC065-079-123-141945-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
243 PM EDT SAT SEP 14 2002

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN JEFFERSON COUNTY IN FLORIDA
  WEST CENTRAL MADISON COUNTY IN FLORIDA
  NORTHWESTERN TAYLOR COUNTY IN FLORIDA

* UNTIL 345 PM EDT

* AT 237 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
  INDICATED VERY HEAVY RAIN OVER SOUTHERN JEFFERSON COUNTY.  
  INTENSE PRECIPITATION WILL MOVE TO THE NORTHEAST AT 20 MILES
  PER HOUR INTO WESTERN MADISON COUNTY AND NORTHWESTERN TAYLOR                
  COUNTY. PRECIPITATION WILL RANGE TWO TO THREE INCHES PER HOUR 
  OVER THE NEXT HOUR IN THESE AREAS. EXPECT LOCALIZED FLOODING OF         
  ROADWAYS AND DITCHES IN AFFECTED AREAS COVERED BY THIS WARNING. 
 
* DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE 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. IT ONLY TAKES A FOOT OR TWO OF FLOWING WATER TO SWEEP 
  MOST CARS AWAY. REMEMBER...MOST FLASH FLOOD DEATHS OCCUR IN 
  AUTOMOBILES.

LAT...LON 3054 8365 3001 8379 3014 8406 3046 8403

.END

52-LANIER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 10:40 AM EDTFlash Flood WarningTAEGadsden, Jefferson, Leon, Wakulla20 min
Sep 14, 10:48 AM EDTFlash Flood WarningTAEGadsden, Jefferson, Leon, Wakulla12 min
Sep 14, 10:52 AM EDTFlash Flood WarningTAEGadsden, Jefferson, Leon, Wakulla2 hr
Sep 14, 11:25 AM EDTFlash Flood WarningTAEJefferson, Leon, Taylor, Wakulla50 min
Sep 14, 12:18 PM EDTFlash Flood WarningTAEJefferson57 min
Sep 14, 2:15 PM EDTFlash Flood WarningTAELeon, Wakulla60 min

Nearby

Flash Flood Warnings in Florida, 2002Every flash flood warning in 2002

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; radar from the NEXRAD Level II archive.