Alert archive / Florida / Flash Flood Warnings in 2002

Flash Flood Warning 1, NWS Tallahassee, FL

March 3, 200210 counties in Florida; Brooks County, Lowndes County, Thomas County, Georgia

NWS Tallahassee, FL issued this flash flood warning at Mar 3, 2002, 2:22 AM CST for 10 counties in Florida; Brooks County, Lowndes County, Thomas County, Georgia. It was in force for 23 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
Mar 3, 2002, 2:22 AM CST (08:22 UTC)
Expired
Mar 3, 2002, 2:45 AM CST
In force
23 min
Issued by
NWS Tallahassee, FL
Area
Counties, with a storm outline in the text

Counties Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Wakulla County, FL, Brooks County, GA, Lowndes County, GA, Thomas County, GA

The radar

The Tallahassee radar (KTLH), 43 km from the middle of the area, began a volume at 08:24 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 00:00Z, 8.4 hours before the alert went out and 41 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 00:00Z on 2002-03-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 123 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, Tallahassee Rgnl, FL at 00:00Z on 2002-03-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 296 square meters per square second.1939587897117136156175Sfc1 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
123 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
442 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
296 m²/s²
0-3 km storm-relative helicity
420 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KTAE 030822
FFWTLH
FLC005-013-037-039-045-065-073-077-079-129-GAC027-185-275-030845-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
317 AM EST SUN MAR 3 2002

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BAY COUNTY IN FLORIDA
  SOUTH CENTRAL CALHOUN COUNTY IN FLORIDA
  NORTHWESTERN FRANKLIN COUNTY IN FLORIDA
  SOUTHEASTERN GADSDEN COUNTY IN FLORIDA
  GULF COUNTY IN FLORIDA
  JEFFERSON COUNTY IN FLORIDA
  THIS INCLUDES MONTICELLO
  LEON COUNTY IN FLORIDA
  THIS INCLUDES TALLAHASSEE
  LIBERTY COUNTY IN FLORIDA
  NORTHERN MADISON COUNTY IN FLORIDA
  WAKULLA COUNTY IN FLORIDA
  THIS INCLUDES...CRAWFORDVILLE...ST. MARKS
  SOUTHERN BROOKS COUNTY IN GEORGIA
  THIS INCLUDES QUITMAN
  LOWNDES COUNTY IN GEORGIA
  THIS INCLUDES VALDOSTA
  SOUTHERN THOMAS COUNTY IN GEORGIA

* UNTIL 345 AM EST(245 AM CST)...

* AT 318 AM EST(218 AM CST)...NATIONAL WEATHER SERVICE DOPPLER 
  RADAR INDICATED VERY HEAVY RAIN FROM PANAMA CITY THROUGH 
  TALLAHASSEE AND EASTERN LEON COUNTY.  

  THESE STORMS HAVE ALREADY PRODUCED RAINFALL ACCUMULATIONS OF THREE TO 
  FOUR INCHES DURING THE PAST THREE HOURS FROM PANAMA CITY TO TALLAHASSEE.  
  ANOTHER ONE TO TWO INCHES ARE LIKELY IN THE NEXT TWO HOURS.  THIS AREA 
  OF HEAVY RAIN WILL LIKELY SPREAD INTO SOUTHERN GEORGIA TOWARDS VALDOSTA.  
  LAW ENFORCEMENT OFFICIALS/EMERGENCY MANAGEMENT HAVE ALREADY REPORTED 
  FLOODING ON 25 STREETS IN TALLAHASSEE AND ANY ADDITIONAL RAINFALL 
  WILL WORSEN THE SITUATION.  

* EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE RAPID FLOODING
  OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES.
  ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS
  OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT
  TO FLOODING.

* 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.

* RESIDENTS IN FLOOD PRONE AREAS SHOULD MONITOR FLOOD CONDITIONS
  AND BE PREPARED TO MOVE TO HIGHER GROUND SHOULD FLOOD WATERS
  THREATEN. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY MOVE TO
  HIGHER GROUND TO ESCAPE FLOOD WATERS.

LAT...LON 3099 8333 3092 8305 3077 8315 3063 8313
          2970 8516 3011 8559 3047 8462 3070 8406

.END

52-LANIER

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 10:04 PM CSTSevere Thunderstorm WarningTAEWalton26 min
Mar 2, 9:00 PM CSTSpecial Marine WarningTAE4 hr
Mar 3, 1:08 AM CSTSpecial Marine WarningTAE4 hr
Mar 3, 3:52 AM CSTSpecial Marine WarningTAE3 hr

Nearby

Flash Flood Warnings in Florida, 2002Flash Flood Warnings in Georgia, 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.