Alert archive / Florida / Flash Flood Warnings in 2012

Flash Flood Warning 2, NWS Jacksonville, FL

May 29, 2012Marion County, Florida

NWS Jacksonville, FL issued this flash flood warning at May 29, 2012, 12:16 AM EDT for Marion County, Florida. It was in force for 3 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
May 29, 2012, 12:16 AM EDT (04:16 UTC)
Expired
May 29, 2012, 3:00 AM EDT
In force
3 hr
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Flood severity
None

County Marion County, FL

The radar

The Tampa radar (KTBW), 158 km from the middle of the area, began a volume at 04:18 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

Tampa Bay, FL (KTBW), launched 00:00Z, 4.3 hours before the alert went out and 158 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, Tampa Bay, FL at 00:00Z on 2012-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1581 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, Tampa Bay, FL at 00:00Z on 2012-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
1581 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
834 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
64 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.

020 
WGUS52 KJAX 290416
FFWJAX
FLC083-290700-
/O.NEW.KJAX.FF.W.0002.120529T0416Z-120529T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1216 AM EDT TUE MAY 29 2012

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN MARION COUNTY IN NORTHERN FLORIDA

* UNTIL 300 AM EDT

* AT 1212 AM EDT DOPPLER RADAR INDICATED A BAND OF SHOWERS AND           
  THUNDERSTORMS MOVING IN FROM THE GULF ACROSS WESTERN MARION        
  COUNTY. THERE HAVE BEEN DOPPLER RAINFALL ESTIMATES OF 4 TO 6       
  INCHES OF RAIN ACROSS THIS AREA THIS EVENING. THERE HAVE BEEN      
  REPORTS OF A HOUSE BEGINNING TO FLOOD TO THE NORTH                 
  OF DUNNELLON AND A ROAD IMPASSABLE NEAR HIGHWAY 40 AND             
  U.S. HIGHWAY 41 NEAR RAILROAD TRESTLE. AN ADDITIONAL 
  2 INCHES OF RAIN IS LIKELY OVER THIS AREA WHICH WILL RESULT 
  IN MORE WIDESPREAD AND SIGNIFICANT FLOODING.      
       
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO      
  RAINBOW LAKES ESTATES AND DUNNELLON.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT...OR YOU CAN ALSO CALL THE NATIONAL WEATHER
SERVICE IN JACKSONVILLE DIRECTLY AT 800-499-1594 TO REPORT FLOODING.

&&

LAT...LON 2904 8254 2918 8254 2922 8249 2922 8241
      2927 8241 2925 8222 2908 8230 2903 8245
      2904 8247 2903 8250

$$

PETERSON
1 follow-up statement
358 
WGUS72 KJAX 290653
FFSJAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
253 AM EDT TUE MAY 29 2012

FLC083-290703-
/O.EXP.KJAX.FF.W.0002.000000T0000Z-120529T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARION FL-
253 AM EDT TUE MAY 29 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 300 AM EDT FOR WESTERN
MARION COUNTY...

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT...OR YOU CAN ALSO CALL THE NATIONAL WEATHER
SERVICE IN JACKSONVILLE DIRECTLY AT 800-499-1594 TO REPORT FLOODING.

LAT...LON 2904 8254 2918 8254 2922 8249 2922 8241
      2927 8241 2925 8222 2908 8230 2903 8245
      2904 8247 2903 8250

$$

PETERSON

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 8:22 PM EDTLake Wind AdvisoryJAXNassau8 hr
May 28, 8:46 PM EDTSpecial Weather StatementJAXAlachua44 min
May 28, 9:23 PM EDTSpecial Weather StatementJAXFlagler52 min
May 28, 9:29 PM EDTSpecial Weather StatementJAXAlachua46 min
May 28, 9:34 PM EDTAreal Flood AdvisoryJAXAlachua, Bradford, Clay, Marion, Putnam56 min
May 28, 9:56 PM EDTSpecial Weather StatementJAXSaint Johns34 min
May 28, 10:13 PM EDTSpecial Weather StatementJAXMarion, Putnam32 min
May 28, 10:28 PM EDTAreal Flood AdvisoryJAXAlachua, Marion, Putnam62 min
May 28, 10:35 PM EDTSpecial Marine WarningJAX55 min
May 28, 10:43 PM EDTSpecial Weather StatementJAXDuval32 min
May 28, 10:46 PM EDTSpecial Weather StatementJAXMarion29 min
May 28, 10:50 PM EDTAreal Flood WarningJAXMarion3 hr
May 28, 11:18 PM EDTSpecial Weather StatementJAXMarion42 min
May 28, 11:53 PM EDTSpecial Weather StatementJAXSuwannee37 min
May 29, 12:00 AM EDTSpecial Weather StatementJAXMarion30 min
May 29, 12:40 AM EDTSpecial Weather StatementJAXColumbia50 min
May 29, 12:51 AM EDTAreal Flood WarningJAXColumbia, Gilchrist, Hamilton, Suwannee3 hr
May 29, 2:08 AM EDTSpecial Weather StatementJAXMarion52 min
May 29, 2:50 AM EDTSpecial Marine WarningJAX55 min
May 29, 3:10 AM EDTAreal Flood WarningJAXMarion, Putnam4 hr
May 29, 3:58 AM EDTAreal Flood WarningJAXColumbia, Hamilton, Suwannee3 hr
May 29, 4:40 AM EDTSpecial Weather StatementJAXSuwannee35 min
May 29, 5:14 AM EDTFlash Flood WarningJAXSuwannee3 hr
May 29, 5:17 AM EDTSpecial Weather StatementJAXSuwannee43 min
May 29, 5:59 AM EDTSpecial Weather StatementJAXColumbia31 min
May 29, 6:26 AM EDTSpecial Weather StatementJAXColumbia34 min
May 29, 6:52 AM EDTAreal Flood WarningJAXBaker, Columbia, Gilchrist, Union3 hr
May 29, 6:52 AM EDTSpecial Weather StatementJAXUnion38 min
May 29, 8:30 AM EDTSpecial Weather StatementJAXBaker45 min
May 29, 9:26 AM EDTSpecial Weather StatementJAXAlachua34 min
May 29, 9:51 AM EDTSpecial Weather StatementJAXAlachua, Bradford39 min
May 29, 10:46 AM EDTSpecial Weather StatementJAXAlachua44 min
May 29, 1:20 PM EDTSpecial Weather StatementJAXUnion40 min
May 29, 1:34 PM EDTSpecial Weather StatementJAXBaker26 min
May 29, 1:46 PM EDTSpecial Weather StatementJAXColumbia44 min
May 29, 1:53 PM EDTSpecial Weather StatementJAXUnion52 min
May 29, 2:18 PM EDTSpecial Weather StatementJAXCitrus27 min
May 29, 2:45 PM EDTSpecial Weather StatementJAXBradford, Union60 min
May 29, 3:39 PM EDTSpecial Weather StatementJAXNassau36 min
May 29, 3:43 PM EDTTornado WarningJAXBradford, Union32 min
May 29, 4:19 PM EDTSpecial Weather StatementJAXBaker26 min
May 29, 4:44 PM EDTSpecial Weather StatementJAXDuval46 min
May 29, 4:49 PM EDTAreal Flood AdvisoryJAXBaker, Nassau25 min
May 29, 5:15 PM EDTSpecial Weather StatementJAXClay30 min
May 29, 5:45 PM EDTSpecial Weather StatementJAXClay30 min
May 29, 6:16 PM EDTSpecial Weather StatementJAXBradford, Clay, Gilchrist29 min
May 29, 6:43 PM EDTSpecial Weather StatementJAXAlachua, Clay, Gilchrist32 min
May 29, 7:13 PM EDTSpecial Weather StatementJAXAlachua32 min
May 29, 7:20 PM EDTSevere Thunderstorm WarningJAXAlachua, Clay, Putnam40 min
May 29, 7:40 PM EDTSpecial Weather StatementJAXAlachua50 min
May 29, 7:45 PM EDTAreal Flood AdvisoryJAXAlachua, Putnam90 min
May 29, 7:53 PM EDTSpecial Weather StatementJAXPutnam37 min

Nearby

Flash Flood Warnings in Florida, 2012Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.