Alert archive / Florida / Coastal Flood Statements in 2012

Coastal Flood Statement 9, NWS Miami, FL

November 24, 2012Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this coastal flood statement at Nov 24, 2012, 5:20 AM EST for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Nov 24, 2012, 5:20 AM EST (10:20 UTC)
Expired
Nov 24, 2012, 10:00 PM EST
In force
17 hr
Issued by
NWS Miami, FL

Counties Broward County, FL, Miami-Dade County, FL, Palm Beach County, FL

The radar

The Miami radar (KAMX), 59 km from the middle of the area, began a volume at 10:23 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

Miami, FL (KMFL), launched 00:00Z, 10.3 hours before the alert went out and 39 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 2012-11-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1570 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
63 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.

199 
WHUS42 KMFL 241020
CFWMFL

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
520 AM EST SAT NOV 24 2012

...HIGH RISK OF RIP CURRENTS CONTINUES FOR PALM BEACH AND BROWARD
COUNTIES...

...MINOR COASTAL FLOODING POSSIBLE EAST COAST...

.MODERATE NORTHEAST SWELL WILL CONTINUE TO GENERATE MODERATE SURF
AND AN ELEVATED RISK OF RIP CURRENTS ALONG PORTIONS OF THE
SOUTHEAST FLORIDA COAST TODAY...MAINLY ANYWHERE NORTH OF FORT
LAUDERDALE TO JUPITER INLET. MINOR TO MODERATE BEACH EROSION WILL
REMAIN POSSIBLE THROUGH THIS TIMES. THE SURF IS FORECAST TO TREND
DOWN THROUGH THE REMAINDER OF THE WEEKEND. 

IN ADDITION TO THE SURF AND CURRENTS...WATER LEVELS ARE RUNNING
SLIGHTLY HIGHER THAN NORMAL...WHICH MAY LEAD TO MINOR COASTAL
FLOODING ALONG THE TYPICALLY VULNERABLE PORTIONS OF THE COAST
THROUGH THE DAY TODAY...SUCH AS THE BAY SIDE OF SOUTH BEACH AND
PORTIONS OF A1A IN FORT LAUDERDALE.

FLZ168-172-250300-
/O.NEW.KMFL.CF.S.0009.121124T1020Z-121125T0300Z/
/O.EXT.KMFL.RP.S.0035.000000T0000Z-121125T0300Z/
COASTAL PALM BEACH-COASTAL BROWARD-
520 AM EST SAT NOV 24 2012

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH THIS EVENING...
...MINOR COASTAL FLOODING POSSIBLE DURING AND AROUND HIGH TIDE...

* COASTAL FLOODING AND RIP CURRENTS...MODERATE SURF WILL MAINTAIN
  THE ELEVATED RISK OF RIP CURRENTS THROUGH THE DAY...ESPECIALLY
  NEAR JETTIES AND PIERS NORTH OF FORT LAUDERDALE TO JUPITER
  INLET. MINOR COASTAL FLOODING IN THE TYPICALLY FLOOD PRONE AREAS
  WILL ALSO REMAIN POSSIBLE. REPORTS HAVE ALREADY INDICATED
  STREET FLOODING YESTERDAY ALONG A1A IN FORT LAUDERDALE...WHICH
  WILL BE POSSIBLE ONCE AGAIN TODAY DESPITE THE GRADUALLY
  SUBSIDING SURF.

* TIMING...MINOR STREET FLOODING WILL BE POSSIBLE AT AND AROUND
  THE TIMES OF HIGH TIDE...WHICH WILL BE LATE THIS AFTERNOON AND
  ONCE AGAIN BY DAYBREAK SUNDAY MORNING. SURF AND THE RISK OF RIP
  CURRENTS WILL STEADILY BEGIN TO SUBSIDE LATER TODAY THROUGH
  SUNDAY.

* IMPACTS...HAZARDOUS RIP CURRENTS WILL MAINTAIN DANGEROUS
  SWIMMING CONDITIONS...ESPECIALLY AROUND PIERS AND JETTIES WHERE
  THE HIGHER SURF IS. ROAD CLOSURES MAY BE POSSIBLE AROUND HIGH
  TIDE DUE FLOODED ROADS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A HIGH RISK OF RIP CURRENTS.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS JETTIES AND
PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$

FLZ173-250300-
/O.NEW.KMFL.CF.S.0009.121124T1020Z-121125T0300Z/
COASTAL MIAMI DADE-
520 AM EST SAT NOV 24 2012

...MINOR COASTAL FLOODING DURING HIGH TIDE...

* COASTAL FLOODING...WATER LEVELS ARE RUNNING SLIGHTLY HIGHER THAN
  NORMAL...WHICH CONTINUES TO IMPACT PORTIONS OF THE BAY SIDE OF
  SOUTH BEACH...MAINLY ALONG ALTON ROAD FROM FIFTH TO TENTH STREET.

* TIMING...MINOR STREET FLOODING WILL BE POSSIBLE AT AND AROUND THE
  TIMES OF HIGH TIDE. THE NEXT HIGH TIDE CYCLE WILL BE THROUGH THE
  LATE AFTERNOON AND EARLY EVENING PERIOD TODAY AND ONCE AGAIN BY
  DAYBREAK SUNDAY.

* IMPACTS...PARTIAL STREET FLOODING POSSIBLE. 

DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED STREETS. 

$$

Nearby

Coastal Flood Statements in Florida, 2012Every coastal flood statement 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.