Alert archive / Florida / Flash Flood Warnings in 2007

Flash Flood Warning 2, NWS Tallahassee, FL

August 9, 2007Leon County, Florida

NWS Tallahassee, FL issued this flash flood warning at Aug 9, 2007, 6:58 PM EDT for Leon County, Florida. It was in force for 92 min. 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 9, 2007, 6:58 PM EDT (22:58 UTC)
Expired
Aug 9, 2007, 8:30 PM EDT
In force
92 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Leon County, FL

The radar

The Tallahassee radar (KTLH), 8 km from the middle of the area, began a volume at 23:01 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, 11.0 hours before the alert went out and 7 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 2007-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2118 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 2007-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
2118 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
1036 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
13 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 092301
FFWTAE
FLC073-100030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
658 PM EDT THU AUG 9 2007

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL LEON COUNTY IN FLORIDA...
  THIS INCLUDES THE CITY OF TALLAHASSEE...

* UNTIL 830 PM EDT

* AT 655 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND REPORTS 
  FROM THE PUBLIC INDICATE FLASH FLOODING FROM A THUNDERSTORM OVER   
  TALLAHASSEE AND SURROUNDING AREAS IN LEON COUNTY. 

SIGNIFICANT FLOODING WILL BE POSSIBLE IN THE NORMALLY MORE FLOOD     
PRONE AREAS OF TALLAHASSEE AND LEON COUNTY...ESPECIALLY ALONG        
FRANKLIN BOULEVARD...CAPITAL CIRCLE NORTHEAST...SOUTH MONROE         
STREET...SOUTH OF GAINES STREET AND OTHER FLOOD PRONE AREAS OF       
LEON COUNTY. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR             
OCCURRING. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD          
TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY.
DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF          
UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE.

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 IT ONLY TAKES A FOOT OR TWO OF FLOWING WATER TO SWEEP 
MOST CARS AWAY. REMEMBER...MOST FLASH FLOOD DEATHS OCCUR IN 
AUTOMOBILES. TURN AROUND DONT DROWN

REPORT FLOODING OR FLOOD DAMAGE TO THE NATIONAL WEATHER SERVICE IN 
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT        
THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY          
MANAGEMENT. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER      
SERVICE.

LAT...LON 3033 8448 3030 8411 3060 8406 3061 8434

$$

38-GODSEY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 4:38 PM EDTSevere Thunderstorm WarningTAEJackson37 min
Aug 9, 4:56 PM EDTSevere Thunderstorm WarningTAECalhoun34 min
Aug 9, 5:39 PM EDTSevere Thunderstorm WarningTAECalhoun36 min
Aug 9, 6:02 PM EDTSevere Thunderstorm WarningTAELiberty43 min
Aug 9, 6:45 PM EDTSevere Thunderstorm WarningTAELeon45 min

Nearby

Flash Flood Warnings in Florida, 2007Every flash flood warning in 2007

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.