Alert archive / Florida / Coastal Flood Statements in 2012

Coastal Flood Statement 9, NWS Key West, FL

November 24, 2012Monroe County, Florida

NWS Key West, FL issued this coastal flood statement at Nov 24, 2012, 11:05 AM EST for Monroe County, Florida. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued
Nov 24, 2012, 11:05 AM EST (16:05 UTC)
Expired
Nov 25, 2012, 10:00 AM EST
In force
23 hr
Issued by
NWS Key West, FL

County Monroe County, FL

The radar

The Miami radar (KAMX), 51 km from the middle of the area, began a volume at 16:06 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 12:00Z, 4.1 hours before the alert went out and 69 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 12:00Z 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 12:00Z on 2012-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -41 square meters per square second.1939587897Sfc1 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
1754 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-41 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.

179 
WHUS42 KKEY 241605
CFWKEY

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE KEY WEST FL
1105 AM EST SAT NOV 24 2012

FLZ076>078-250300-
/O.NEW.KKEY.CF.S.0009.121124T1605Z-121125T0900Z/
MONROE UPPER KEYS-MONROE MIDDLE KEYS-MONROE LOWER KEYS-
1105 AM EST SAT NOV 24 2012

...MINOR COASTAL FLOODING POSSIBLE ALONG THE BAYSIDE OF THE UPPER
FLORIDA KEYS AND DURING HIGH TIDE ALONG THE MIDDLE AND LOWER KEYS...

* COASTAL FLOODING...MINOR COASTAL FLOODING HAS BEEN REPORTED ALONG
  THE BAYSIDE NEAR MILE MARKER 103 IN KEY LARGO. MINOR COASTAL
  FLOODING IS EXPECTED TO CONTINUE ALONG IN LOW ELEVATION FLORIDA BAY
  COMMUNITIES FROM KEY LARGO THROUGH ISLAMORADA THROUGH THE WEEKEND.
  MINOR COASTAL FLOODING IS ALSO LIKELY TO OCCUR THIS EVENING IN LOW
  LYING AREAS MAINLY DUE TO HIGH TIDES REACHING NEAR ONE FOOT ABOVE
  NORMAL PROJECTED HIGH TIDES. THIS WILL BRING WATER LEVELS UP TO
  AROUND 2 FEET ABOVE MEAN SEA LEVEL. HIGH TIDES WILL GENERALLY OCCUR
  BETWEEN 700 PM AND 1100 PM TONIGHT. 

* TIMING...MINOR COASTAL FLOODING OF LOW-LYING AREAS WILL OCCUR WITH
  THE HIGHEST WATER LEVELS LIKELY OCCURRING AT THE TIME OF HIGH
  TIDE...WHICH WILL GENERALLY OCCUR BETWEEN 700 PM AND 1100 PM THIS
  EVENING. BUT THE EXACT TIMING OF THE MINOR COASTAL FLOODING AT ANY
  POINT THROUGHOUT THE THE KEYS WILL DEPEND ON THE LOCATION. NOTE
  THAT ALONG THE BAYSIDE IN THE UPPER KEYS...THE DIFFERENCE BETWEEN
  HIGH AND LOW TIDES IS SMALL...AND THEREFORE SOME COASTAL FLOODING
  IMPACT WILL LIKELY CONTINUE EVEN NEAR LOW TIDE.

* IMPACTS...THE PRIMARY HAZARD WILL BE MINOR STREET FLOODING IN THE
  LOWEST ELEVATION STREETS UP TO 4 TO 6 INCHES IN DEPTH. SOME STORM
  DRAINS MAY OVERFLOW...AND SOME LOW LYING DOCKS AND SEAWALLS MAY BE
  OVER TOPPED AS WELL. THE IMPACTS WILL BE FAIRLY CONTINUOUS ALONG
  THE UPPER KEYS...WHEREAS IN THE MIDDLE AND LOWER KEYS BE MOST
  PRONOUNCED NEAR THE TIMES OF THE PROJECTED HIGH TIDES.

PLEASE REPORT OBSERVED COASTAL FLOODING TO YOUR FLORIDA KEYS
NATIONAL WEATHER SERVICE OFFICE AT 305-295-1316 EXTENSION 3.

ADDITIONAL COASTAL FLOOD STATEMENTS WILL BE ISSUED AS NEEDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU LIVE IN A LOCATION PRONE TO COASTAL FLOODING...YOU MAY
NEED TO MOVE PERSONAL PROPERTY TO HIGHER GROUND.

$$
2 follow-up statements
423 
WHUS42 KKEY 250253
CFWKEY

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE KEY WEST FL
953 PM EST SAT NOV 24 2012

FLZ077-078-250400-
/O.CAN.KKEY.CF.S.0009.000000T0000Z-121125T0900Z/
MONROE MIDDLE KEYS-MONROE LOWER KEYS-
953 PM EST SAT NOV 24 2012

...COASTAL FLOOD STATEMENT CANCELLED...

THE COASTAL FLOOD STATEMENT...WHICH WAS IN EFFECT FOR MINOR COASTAL
FLOODING IN THE MIDDLE AND LOWER KEYS HAS BEEN CANCELLED. TIDES ARE
RECEDING AND MINIMAL COASTAL FLOODING IN THE MIDDLE AND LOWER KEYS
IS NO LONGER EXPECTED TONIGHT. MINOR COASTAL FLOODING IS POSSIBLE IN
THE MIDDLE AND LOWER KEYS NEAR THE TIME OF HIGH TIDE SUNDAY EVENING. 

$$

FLZ076-251500-
/O.EXT.KKEY.CF.S.0009.000000T0000Z-121125T1500Z/
MONROE UPPER KEYS-
953 PM EST SAT NOV 24 2012

...MINOR COASTAL FLOODING ALONG THE BAYSIDE OF THE UPPER KEYS...

* COASTAL FLOODING...MINOR COASTAL FLOODING HAS BEEN REPORTED ALONG
  THE BAYSIDE PORTION OF THE UPPER KEYS NEAR MILE MARKER 103 IN KEY
  LARGO. MINIMAL COASTAL FLOODING SHOULD PERSIST IN LOW LYING AREAS
  ALONG THE BAYSIDE PORTION OF THE UPPER KEYS FROM ISLAMORADA TO KEY
  LARGO THIS WEEKEND.

* TIMING...THE DIFFERENCE BETWEEN HIGH TIDE AND LOW TIDE IS SMALL IN
  THE UPPER KEYS. THEREFORE...MINOR COASTAL FLOODING WILL LIKELY
  PERSIST IN LOW LYING AREAS ALONG THE BAYSISE PORTION OF THE UPPER
  KEYS FROM ISLAMORADA TO KEY LARGO EVEN NEAR THE TIME OF LOW TIDE. 

* IMPACTS...THE PRIMARY HAZARD WILL BE MINOR STREET FLOODING OF
  LOWEST ELEVATION STREETS OF UP TO 4 TO 6 INCHES IN DEPTH. SOME
  STORM DRAINS MAY OVERFLOW...AND SOME LOW LYING DOCKS AND SEAWALLS
  MAY BE OVER TOPPED AS WELL.

PLEASE REPORT OBSERVED COASTAL FLOODING TO YOUR FLORIDA KEYS NATIONAL
WEATHER SERVICE OFFICE AT 305-295-1316 EXTENSION 3.

ADDITIONAL COASTAL FLOOD STATEMENTS WILL BE ISSUED AS NEEDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU LIVE IN A LOCATION PRONE TO COASTAL FLOODING...YOU MAY NEED TO
MOVE PERSONAL PROPERTY TO HIGHER GROUND.

$$
BS
607 
WHUS42 KKEY 251509
CFWKEY

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE KEY WEST FL
1009 AM EST SUN NOV 25 2012

FLZ076-260400-
/O.EXP.KKEY.CF.S.0009.000000T0000Z-121125T1500Z/
/O.NEW.KKEY.CF.S.0010.121125T1509Z-121126T0900Z/
MONROE UPPER KEYS-
1009 AM EST SUN NOV 25 2012

...MINOR COASTAL FLOODING EXPECTED ALONG THE BAYSIDE OF THE UPPER
KEYS...

* COASTAL FLOODING...MINOR COASTAL FLOODING CONTINUES TO BE REPORTED
  IN WATERFRONT COMMUNITIES ALONG THE BAYSIDE PORTION OF THE UPPER
  KEYS IN KEY LARGO FROM MILE MARKER 103 THROUGH 106. MINOR COASTAL
  FLOODING SHOULD PERSIST IN LOW LYING AREAS ALONG THE BAYSIDE
  PORTION OF THE UPPER KEYS FROM ISLAMORADA TO KEY LARGO EARLY THIS
  WEEK. 

* TIMING...THE DIFFERENCE BETWEEN HIGH TIDE AND LOW TIDE IS 
  SMALL IN THE UPPER KEYS. THEREFORE...MINOR COASTAL FLOODING 
  WILL LIKELY PERSIST IN LOW LYING AREAS ALONG THE BAYSISE 
  PORTION OF THE UPPER KEYS FROM ISLAMORADA TO KEY LARGO EVEN 
  NEAR THE TIME OF LOW TIDE. 

* IMPACTS...THE PRIMARY HAZARD WILL BE MINOR STREET FLOODING OF
  LOWEST ELEVATION STREETS OF UP 6 INCHES IN DEPTH. SOME STORM
  DRAINS MAY OVERFLOW...AND SOME LOW LYING DOCKS AND SEAWALLS MAY BE
  OVER TOPPED AS WELL.

PLEASE REPORT OBSERVED COASTAL FLOODING TO YOUR FLORIDA KEYS
NATIONAL WEATHER SERVICE OFFICE AT 305-295-1316 EXTENSION 3.

ADDITIONAL COASTAL FLOOD STATEMENTS WILL BE ISSUED AS NEEDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU LIVE IN A LOCATION PRONE TO COASTAL FLOODING...YOU MAY
NEED TO MOVE PERSONAL PROPERTY TO HIGHER GROUND.

$$

FLZ077-078-260400-
/O.NEW.KKEY.CF.S.0010.121125T1509Z-121126T0900Z/
MONROE MIDDLE KEYS-MONROE LOWER KEYS-
1009 AM EST SUN NOV 25 2012

...MINOR COASTAL FLOODING POSSIBLE IN THE MIDDLE AND LOWER KEYS THIS
EVENING...

* COASTAL FLOODING...MINOR COASTAL FLOODING WILL BE POSSIBLE IN THE
  MIDDLE AND LOWER KEYS AROUND THE TIMES OF THE EVENING HIGH TIDE.
  WATER LEVELS UP TO AROUND 2.1 FEET ABOVE MEAN SEA LEVEL CAN BE
  EXPECTED AROUND THE TIME OF HIGH TIDE THIS EVENING.

* TIMING...HIGH TIDES ARE EXPECTED TO OCCUR GENERALLY BETWEEN 700 PM
  AND MIDNIGHT. THE EXACT TIMING OF THE MINOR COASTAL FLOODING WITHIN
  THIS TIME RANGE WILL DEPEND ON LOCATION...ESPECIALLY AS TIDES ALONG
  THE GULF AND BAYSIDE TEND TO OCCUR A FEW HOURS AFTER THE TIDES ON
  THE ATLANTIC SIDE. AS THE TIDE EBBS LATE THIS EVENING...THE IMPACTS
  OF COASTAL FLOODING SHOULD END.

* IMPACTS...THE PRIMARY HAZARD WILL BE MINOR STREET FLOODING IN THE
  LOWEST ELEVATION STREETS AND SECONDARY ROADS UP TO 4 TO 6 INCHES IN
  DEPTH. SOME STORM DRAINS MAY OVERFLOW...AND SOME LOW LYING DOCKS
  AND SEAWALLS MAY BE OVER TOPPED AS WELL.

PLEASE REPORT OBSERVED COASTAL FLOODING TO YOUR FLORIDA KEYS
NATIONAL WEATHER SERVICE OFFICE AT 305-295-1316 EXTENSION 3.

ADDITIONAL COASTAL FLOOD STATEMENTS WILL BE ISSUED AS NEEDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU LIVE IN A LOCATION PRONE TO COASTAL FLOODING...YOU MAY
NEED TO MOVE PERSONAL PROPERTY TO HIGHER GROUND.

$$

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.