Alert archive / Florida / Flash Flood Warnings in 2014

Flash Flood Warning 2, NWS Miami, FL

January 10, 2014Palm Beach County, Florida

NWS Miami, FL issued this flash flood warning at Jan 10, 2014, 12:46 AM EST for Palm Beach County, Florida. It was in force for 6 hr. 2 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
Jan 10, 2014, 12:46 AM EST (05:46 UTC)
Expired
Jan 10, 2014, 6:30 AM EST
In force
6 hr
Issued by
NWS Miami, FL
Area
Storm-based polygon
Flood severity
None

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 97 km from the middle of the area, began a volume at 05:48 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

TimeReportWhereRemark
Jan 10, 2:50 AM ESTFLASH FLOOD1 W Delray Beach, FLUNOFFICIAL 12.5 INCHES RECORDED BY SPOTTER. CLEVELAND RD IS IMPASSABLE AND WATER IS NEARING THE FRONT DOOR OF HOMES.
Jan 10, 3:48 AM ESTFLASH FLOOD1 W Delray Beach, FLWATER HAS ENTERED A FEW HOMES ON GARFIELD ROAD. DOZENS OF CARS ARE STRANDED WEST OF MILITARY TRAIL DUE TO 3 FEET OF STANDING WATER ON THE ROAD.

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

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 5.8 hours before the alert went out and 71 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, Miami, FL at 00:00Z on 2014-01-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 820 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, Miami, FL at 00:00Z on 2014-01-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.19395878Sfc1 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
820 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
731 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
59 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.

309 
WGUS52 KMFL 100546
FFWMFL
FLC099-101130-
/O.NEW.KMFL.FF.W.0002.140110T0546Z-140110T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1246 AM EST FRI JAN 10 2014

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN PALM BEACH COUNTY IN SOUTHEAST FLORIDA...

* UNTIL 630 AM EST

* AT 1239 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES  
  THAT RAINFALL TOTALS HAVE NOW REACHED THE 7 TO 10 INCH RANGE       
  FROM DELRAY BEACH TO MORIKAMI PARK. AN ADDITIONAL 2 TO 4 INCHES    
  WILL REMAIN POSSIBLE WITHIN THE UPCOMING 2 HOURS DUE TO THE        
  ONGOING HEAVY RAIN.    
 
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...DELRAY
  BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY.

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.

&&

LAT...LON 2641 8006 2640 8016 2647 8020 2649 8005

$$

85-GIBBS
1 follow-up statement
850 
WGUS72 KMFL 100840
FFSMFL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
340 AM EST FRI JAN 10 2014

FLC099-101130-
/O.CON.KMFL.FF.W.0002.000000T0000Z-140110T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PALM BEACH FL-
340 AM EST FRI JAN 10 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM EST FOR
SOUTHEASTERN PALM BEACH COUNTY...

AT 328 AM EST...TRAINED WEATHER SPOTTER HAS REPORTED 12.5 INCHES OF 
RAINFALL MEASURED IN THE WESTERN SECTIONS OF DELRAY BEACH BETWEEN 
LINTON AND ATLANTIC BOULEVARD. CLEVELAND ROAD...WHICH IS LOCATED IN 
THE SAME GENERAL AREA...HAS BECOME IMPASSABLE DUE TO STANDING WATER. 
THE SPOTTER ALSO REPORTED THAT WATER WAS APPROACHING THE FRONT DOOR 
OF A HOME. THE LATEST RADAR ESTIMATES SHOW RAINFALL TOTALS RANGING 
FROM 12 TO 16 INCHES FROM DELRAY TO MORIKAMI PARK. ALTHOUGH THE VERY 
HEAVY RAINFALL HAS RECENTLY TRENDED DOWN...AN ADDITIONAL HALF OF AN 
INCH TO 1 INCH WILL REMAIN POSSIBLE OVER THE UPCOMING COUPLE OF 
HOURS DUE TO THE STEADY MODERATE RAINFALL.  

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VILLAGES OF
ORIOLE AND GULF STREAM.

LAT...LON 2641 8006 2640 8016 2647 8020 2649 8005

$$

85-GIBBS

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 9, 7:24 PM ESTSpecial Marine WarningMFL66 min
Jan 9, 7:40 PM ESTSpecial Weather StatementMFLMartin35 min
Jan 9, 7:55 PM ESTSevere Thunderstorm WarningMFLPalm Beach35 min
Jan 9, 8:25 PM ESTAreal Flood AdvisoryMFLPalm Beach3 hr
Jan 9, 8:28 PM ESTSpecial Marine WarningMFL62 min
Jan 9, 9:29 PM ESTFlash Flood WarningMFLPalm Beach6 hr
Jan 9, 10:06 PM ESTSpecial Marine WarningMFL54 min
Jan 9, 10:34 PM ESTSpecial Marine WarningMFL56 min
Jan 9, 11:08 PM ESTAreal Flood AdvisoryMFLPalm Beach112 min
Jan 9, 11:26 PM ESTSpecial Marine WarningMFL64 min
Jan 10, 3:27 AM ESTSpecial Marine WarningMFL63 min
Jan 10, 3:29 AM ESTFlash Flood WarningMFLPalm Beach6 hr
Jan 10, 6:27 AM ESTAreal Flood WarningMFLPalm Beach16 hr

Nearby

Flash Flood Warnings in Florida, 2014Every flash flood warning in 2014

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.