Alert archive / Florida / Flash Flood Warnings in 2009

Flash Flood Warning 21, NWS Tallahassee, FL

April 13, 20099 counties in Florida

NWS Tallahassee, FL issued this flash flood warning at Apr 13, 2009, 5:43 PM CDT for 9 counties in 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 outline as issued.

The facts

Issued: Apr 13, 2009, 5:43 PM CDT (22:43 UTC)
Expired: Apr 13, 2009, 7:45 PM CDT
In force: 2 hr
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Flood severity: None

Counties Calhoun County, FL, Franklin County, FL, Gulf County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL

The radar

The Eglin Afb radar (KEVX), 96 km from the middle of the area, began a volume at 22:46 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, 10.7 hours before the alert went out and 124 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: 138 J/kg
Mixed-layer CIN: -213 J/kg
Mixed-layer LCL: 619 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 391 m²/s²
0-3 km storm-relative helicity: 472 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KTAE 132243
FFWTAE
FLC013-037-045-065-073-077-079-123-129-140045-
/O.NEW.KTAE.FF.W.0021.090413T2243Z-090414T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
643 PM EDT MON APR 13 2009

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FRANKLIN COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...CARRABELLE...APALACHICOLA...
  SOUTHERN JEFFERSON COUNTY IN FLORIDA...
  SOUTHERN LEON COUNTY IN FLORIDA...
  LIBERTY COUNTY IN FLORIDA...
  MADISON COUNTY IN FLORIDA...
  THIS INCLUDES THE CITY OF MADISON...
  NORTHWESTERN TAYLOR COUNTY IN FLORIDA...
  WAKULLA COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...SAINT MARKS...CRAWFORDVILLE...
  SOUTHEASTERN CALHOUN COUNTY IN THE PANHANDLE OF FLORIDA...
  GULF COUNTY IN THE PANHANDLE OF FLORIDA...
  THIS INCLUDES THE CITY OF PORT ST. JOE...

* UNTIL 845 PM EDT/745 PM CDT/

* AT 638 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WOODVILLE

* A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR
  OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER
  GROUND IMMEDIATELY. 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.

* 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.

* DO NOT DRIVE THROUGH FLOWING WATER. NEARLY HALF OF ALL FLOOD
  FATALITIES ARE VEHICLE RELATED.

* 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 3031 8322 3021 8357 3007 8416 3010 8426
      2997 8434 2971 8499 2969 8529 2983 8532
      2987 8538 2978 8540 2980 8542 2987 8542
      2987 8535 3019 8538 3020 8512 3040 8504
      3038 8382 3063 8362 3062 8328 3040 8317

$$

52-LANIER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 2:18 AM CDT	Small Craft Advisory	TAE		30 hr
Apr 13, 3:05 AM CDT	High Surf Advisory	TAE	Bay, Gulf, Walton	14 hr
Apr 13, 7:09 AM CDT	Severe Thunderstorm Warning	TAE	Holmes, Walton	36 min
Apr 13, 7:43 AM CDT	Severe Thunderstorm Warning	TAE	Holmes, Jackson	47 min
Apr 13, 8:23 AM CDT	Severe Thunderstorm Warning	TAE	Jackson	37 min
Apr 13, 9:41 AM CDT	Areal Flood Warning	TAE	Bay, Holmes, Jackson, Walton, Washington	8 hr
Apr 13, 9:57 AM CDT	River Flood Warning	TAE	Gadsden, Leon	8 days
Apr 13, 10:56 AM CDT	Severe Thunderstorm Warning	TAE	Holmes, Jackson, Washington	49 min
Apr 13, 10:56 AM CDT	Tornado Warning	TAE	Jackson, Washington	34 min
Apr 13, 11:26 AM CDT	Special Marine Warning	TAE		64 min
Apr 13, 11:38 AM CDT	Severe Thunderstorm Warning	TAE	Jackson	37 min
Apr 13, 11:45 AM CDT	Tornado Warning	TAE	Jackson	45 min
Apr 13, 12:07 PM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Jackson, Liberty	38 min
Apr 13, 12:13 PM CDT	Special Marine Warning	TAE		62 min
Apr 13, 12:34 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Jackson, Washington	41 min
Apr 13, 12:53 PM CDT	Tornado Warning	TAE	Bay, Calhoun	37 min
Apr 13, 1:09 PM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Jackson, Liberty	51 min
Apr 13, 1:14 PM CDT	Areal Flood Warning	TAE	Bay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 5 more	8 hr
Apr 13, 1:22 PM CDT	Special Marine Warning	TAE		113 min
Apr 13, 1:22 PM CDT	Tornado Warning	TAE	Calhoun, Liberty	23 min
Apr 13, 1:37 PM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Jackson, Liberty	38 min
Apr 13, 1:44 PM CDT	Tornado Warning	TAE	Gadsden, Liberty	31 min
Apr 13, 1:48 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gulf, Jackson, Liberty, Washington	42 min
Apr 13, 2:04 PM CDT	Severe Thunderstorm Warning	TAE	Gadsden, Leon, Liberty	41 min
Apr 13, 2:15 PM CDT	Tornado Warning	TAE	Gadsden, Leon, Liberty	45 min
Apr 13, 2:18 PM CDT	Fire Weather Watch	TAE	Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more	38 hr
Apr 13, 2:31 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gulf, Liberty, Washington	44 min
Apr 13, 2:37 PM CDT	Severe Thunderstorm Warning	TAE	Gadsden, Jefferson, Leon	38 min
Apr 13, 3:05 PM CDT	Areal Flood Warning	TAE	Dixie, Franklin, Gadsden, Gulf, Jefferson, Lafayette and 5 more	8 hr
Apr 13, 3:16 PM CDT	Special Marine Warning	TAE		59 min
Apr 13, 3:44 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson	38 min
Apr 13, 3:49 PM CDT	Flash Flood Warning	TAE	Bay, Calhoun, Franklin, Gulf, Jefferson, Leon and 4 more	116 min
Apr 13, 3:50 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gulf	40 min
Apr 13, 4:02 PM CDT	Severe Thunderstorm Warning	TAE	Franklin, Gadsden, Liberty	43 min
Apr 13, 4:42 PM CDT	Severe Thunderstorm Warning	TAE	Madison	48 min
Apr 13, 4:48 PM CDT	Special Marine Warning	TAE		87 min
Apr 13, 4:56 PM CDT	Tornado Warning	TAE	Franklin, Gulf	49 min
Apr 13, 5:05 PM CDT	Special Marine Warning	TAE		55 min
Apr 13, 5:07 PM CDT	Severe Thunderstorm Warning	TAE	Leon, Wakulla	38 min
Apr 13, 5:16 PM CDT	Flash Flood Warning	TAE	Gadsden, Jefferson, Leon	119 min
Apr 13, 5:26 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gulf	49 min
Apr 13, 5:29 PM CDT	Tornado Warning	TAE	Franklin	31 min
Apr 13, 5:36 PM CDT	Special Marine Warning	TAE		84 min
Apr 13, 5:48 PM CDT	Severe Thunderstorm Warning	TAE	Franklin, Gulf	42 min
Apr 13, 5:51 PM CDT	Severe Thunderstorm Warning	TAE	Wakulla	39 min
Apr 13, 6:07 PM CDT	Special Marine Warning	TAE		83 min
Apr 13, 6:11 PM CDT	Special Marine Warning	TAE		64 min
Apr 13, 6:16 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Taylor	44 min
Apr 13, 6:25 PM CDT	Tornado Warning	TAE	Taylor	50 min
Apr 13, 6:28 PM CDT	Flash Flood Warning	TAE	Jefferson, Taylor	107 min

Nearby

Flash Flood Warnings in Florida, 2009 Every flash flood warning in 2009

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.