Alert archive / Florida / Flash Flood Warnings in 2012

Flash Flood Warning 12, NWS Tallahassee, FL

June 25, 2012Liberty County, Wakulla County, Florida

NWS Tallahassee, FL issued this flash flood warning at Jun 25, 2012, 11:37 AM EDT for Liberty County, Wakulla County, Florida. It was in force for 6 hr. 8 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 25, 2012, 11:37 AM EDT (15:37 UTC)
Expired: Jun 25, 2012, 5:30 PM EDT
In force: 6 hr
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Flood severity: None

Counties Liberty County, FL, Wakulla County, FL

The radar

The Tallahassee radar (KTLH), 47 km from the middle of the area, began a volume at 15:39 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.

What was reported inside it

Time	Report	Where	Remark
Jun 25, 12:12 PM EDT	FLASH FLOOD	Crawfordville, FL	WATER BEGINNING TO APPROACH LOW-LYING HOMES IN EASTERN AND CENTRAL WAKULLA COUNTY.
Jun 25, 12:12 PM EDT	FLASH FLOOD	Sopchoppy, FL	KNEE DEEP WATER REPORTED NEAR SOPCHOPPY.
Jun 25, 12:12 PM EDT	HEAVY RAIN 5.35	Saint Marks, FL	5.35 INCHES OF RAIN AT ST MARKS WILDLIFE REFUGE SINCE 8 AM. ADDITIONAL MEASUREMENT OF 6.55 INCHES AT GAUGE TWO MILES NORTHEAST SINCE 8AM.
Jun 25, 3:31 PM EDT	HEAVY RAIN 5.85	Crawfordville, FL	TOTAL SINCE MIDNIGHT.
Jun 25, 3:42 PM EDT	HEAVY RAIN 5.62	Saint Marks, FL	TOTAL SINCE MIDNIGHT.
Jun 25, 3:44 PM EDT	HEAVY RAIN 6.09	Shell Point, FL	TOTAL SINCE MIDNIGHT.
Jun 25, 4:57 PM EDT	HEAVY RAIN 10.09	Panacea, FL	24 HOUR TOTAL
Jun 25, 5:01 PM EDT	HEAVY RAIN 11.24	1 Ese Sanborn, FL	TOTAL SINCE MIDNIGHT

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 3.6 hours before the alert went out and 49 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: 81 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 600 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 47 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.

649 
WGUS52 KTAE 251537
FFWTAE
FLC077-129-252130-
/O.NEW.KTAE.FF.W.0012.120625T1537Z-120625T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1137 AM EDT MON JUN 25 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN LIBERTY COUNTY IN FLORIDA...
  WAKULLA COUNTY IN FLORIDA...

* UNTIL 530 PM EDT

* AT 1130 AM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED FLASH
  FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAINT      
  MARKS...CRAWFORDVILLE...WAKULLA...SANBORN...AND CENTRAL CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DON'T 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 3004 8513 3009 8515 3012 8513 3012 8515
      3017 8514 3023 8508 3031 8504 3030 8425
      3027 8424 3027 8408 3009 8407 3006 8416
      3008 8419 3007 8426 3001 8435 3001 8500
      3000 8505

$$

25-CAMP

1 follow-up statement

008 
WGUS72 KTAE 252017
FFSTAE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
417 PM EDT MON JUN 25 2012

FLC077-129-252130-
/O.CON.KTAE.FF.W.0012.000000T0000Z-120625T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LIBERTY FL-WAKULLA FL-
417 PM EDT MON JUN 25 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR
WAKULLA AND SOUTHERN LIBERTY COUNTIES...

AT 412 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A BANDS OF RAIN PRODUCING FLASH FLOODING OVER THE WARNED 
AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAINT 
MARKS...CRAWFORDVILLE...SOPCHOPPY...SANBORN...AND CENTRAL CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AREA RAIN GAUGES INDICATE THAT 6 TO 8 INCHES OF RAIN HAS FALLEN 
ACROSS WAKULLA AND SOUTHERN LIBERTY COUNTIES SINCE EARLY THIS 
MORNING.

ADDITIONAL RAINFALL AMOUNTS OF 3 TO 5 INCHES ARE POSSIBLE IN THE 
WARNED AREA THROUGH THE REMAINDER OF THE AFTERNOON.

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

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3004 8513 3009 8515 3012 8513 3012 8515
      3017 8514 3023 8508 3031 8504 3030 8425
      3027 8424 3027 8408 3009 8407 3006 8416
      3008 8419 3007 8426 3001 8435 3001 8500
      3000 8505

$$

25-CAMP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 4:21 AM EDT	Tornado Warning	TAE	Taylor	24 min
Jun 25, 11:31 AM EDT	River Flood Warning	TAE	Wakulla	9 days
Jun 25, 1:45 PM EDT	Flash Flood Warning	TAE	Leon	3 hr
Jun 25, 4:42 PM EDT	Flash Flood Warning	TAE	Leon	3 hr
Jun 25, 4:56 PM EDT	Flash Flood Warning	TAE	Jefferson, Madison	3 hr
Jun 25, 5:22 PM EDT	Flash Flood Warning Emergency	TAE	Franklin, Liberty, Wakulla	12 hr
Jun 25, 6:18 PM EDT	River Flood Warning	TAE	Wakulla	4 days
Jun 25, 7:37 PM EDT	Flash Flood Warning	TAE	Leon	6 hr
Jun 25, 7:49 PM EDT	Flash Flood Warning	TAE	Jefferson, Madison	5 hr
Jun 25, 7:55 PM EDT	Flash Flood Warning	TAE	Jefferson, Madison, Taylor	6 hr

Nearby

Flash Flood Warnings in Florida, 2012 Every flash flood warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.