Alert archive / Florida / Coastal Flood Statements in 2021

Coastal Flood Statement 4, NWS Miami, FL

November 9, 2021Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this coastal flood statement at Nov 9, 2021, 6:36 PM EST for Broward County, Miami-Dade County, Palm Beach County, Florida. It took effect at Nov 10, 2021, 7:45 AM EST. It was in force for 31 hr.

The area

The counties it named.

The facts

Issued
Nov 9, 2021, 6:36 PM EST (23:36 UTC)
In effect from
Nov 10, 2021, 7:45 AM EST
Expired
Nov 11, 2021, 3:00 PM EST
In force
31 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 23:39 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.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 11.6 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 12:00Z on 2021-11-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 12:00Z on 2021-11-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.193958Sfc1 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
2 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
1101 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

058 
WHUS42 KMFL 092336 
CFWMFL

Coastal Hazard Message...RESENT
National Weather Service Miami FL
636 PM EST Tue Nov 9 2021

FLZ168-100730-
/O.NEW.KMFL.CF.S.0004.211110T1600Z-211110T2000Z/
/O.CON.KMFL.SU.Y.0006.000000T0000Z-211110T1200Z/
/O.CON.KMFL.RP.S.0036.000000T0000Z-211111T0000Z/
Coastal Palm Beach-
636 PM EST Tue Nov 9 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
WEDNESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH WEDNESDAY
EVENING...
...COASTAL FLOOD STATEMENT IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY AFTERNOON...

* WHAT...For the High Surf Advisory, large breaking waves of 5 
  to 7 feet in the surf zone. For the High Rip Current Risk, 
  dangerous rip currents. For the Coastal Flood Statement, 
  isolated minor coastal flooding expected.

* WHERE...Coastal Palm Beach County.

* WHEN...For the High Surf Advisory, until 7 AM EST Wednesday. 
  For the High Rip Current Risk, through Wednesday evening. For 
  the Coastal Flood Statement, from Wednesday morning through 
  Wednesday afternoon.

* IMPACTS...Some minor saltwater flooding and ponding of water on
  low lying roads and property near the immediate coast. 
  Dangerous swimming and surfing conditions and localized beach 
  erosion. Rip currents can sweep even the best swimmers away from
  shore into deeper water.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

FLZ172-173-100730-
/O.CON.KMFL.RP.S.0036.000000T0000Z-211111T0000Z/
Coastal Broward-Coastal Miami-Dade-
636 PM EST Tue Nov 9 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH WEDNESDAY
EVENING...

* WHAT...For the High Rip Current Risk, dangerous rip currents.

* WHERE...Coastal Broward and Coastal Miami-Dade Counties.

* WHEN...For the High Rip Current Risk, through Wednesday 
  evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
7 follow-up statements
669 
WHUS42 KMFL 100110
CFWMFL

Coastal Hazard Message
National Weather Service Miami FL
810 PM EST Tue Nov 9 2021

FLZ168-101200-
/O.CON.KMFL.SU.Y.0006.000000T0000Z-211110T1200Z/
/O.CON.KMFL.RP.S.0036.000000T0000Z-211111T0000Z/
/O.CON.KMFL.CF.S.0004.211110T1600Z-211110T2000Z/
Coastal Palm Beach-
810 PM EST Tue Nov 9 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
WEDNESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH WEDNESDAY
EVENING...
...COASTAL FLOOD STATEMENT REMAINS IN EFFECT FROM WEDNESDAY
MORNING THROUGH WEDNESDAY AFTERNOON...

* WHAT...For the High Surf Advisory, large breaking waves of 5 
  to 7 feet in the surf zone. For the High Rip Current Risk, 
  dangerous rip currents. For the Coastal Flood Statement, 
  isolated minor coastal flooding expected.

* WHERE...Coastal Palm Beach County.

* WHEN...For the High Surf Advisory, until 7 AM EST Wednesday. 
  For the High Rip Current Risk, through Wednesday evening. For 
  the Coastal Flood Statement, from Wednesday morning through 
  Wednesday afternoon.

* IMPACTS...Some minor saltwater flooding and ponding of water 
  on low lying roads and property near the immediate coast. 
  Dangerous swimming and surfing conditions and localized beach 
  erosion. Rip currents can sweep even the best swimmers away 
  from shore into deeper water.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

FLZ172-173-101200-
/O.CON.KMFL.RP.S.0036.000000T0000Z-211111T0000Z/
Coastal Broward-Coastal Miami-Dade-
810 PM EST Tue Nov 9 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH WEDNESDAY
EVENING...

* WHAT...For the High Rip Current Risk, dangerous rip currents.

* WHERE...Coastal Broward and Coastal Miami-Dade Counties.

* WHEN...For the High Rip Current Risk, through Wednesday 
  evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
873 
WHUS42 KMFL 100828
CFWMFL

Coastal Hazard Message
National Weather Service Miami FL
328 AM EST Wed Nov 10 2021

FLZ168-101630-
/O.EXT.KMFL.RP.S.0036.000000T0000Z-211111T1800Z/
/O.CON.KMFL.SU.Y.0006.000000T0000Z-211110T1200Z/
/O.CON.KMFL.CF.S.0004.211110T1600Z-211110T2000Z/
Coastal Palm Beach-
328 AM EST Wed Nov 10 2021

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH THURSDAY
AFTERNOON...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
...COASTAL FLOOD STATEMENT REMAINS IN EFFECT FROM 11 AM THIS
MORNING TO 3 PM EST THIS AFTERNOON...

* WHAT...For the High Surf Advisory, large breaking waves of 5 
  to 7 feet in the surf zone. For the High Rip Current Risk, 
  dangerous rip currents. For the Coastal Flood Statement, 
  isolated minor coastal flooding expected.

* WHERE...Coastal Palm Beach County.

* WHEN...For the High Surf Advisory, until 7 AM EST this 
  morning. For the High Rip Current Risk, through Thursday 
  afternoon. For the Coastal Flood Statement, from 11 AM this 
  morning to 3 PM EST this afternoon.

* IMPACTS...Some minor saltwater flooding and ponding of water 
  on low lying roads and property near the immediate coast. 
  Dangerous swimming and surfing conditions and localized beach 
  erosion. Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

FLZ172-173-101630-
/O.EXT.KMFL.RP.S.0036.000000T0000Z-211111T1800Z/
Coastal Broward-Coastal Miami-Dade-
328 AM EST Wed Nov 10 2021

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH THURSDAY
AFTERNOON...

* WHAT...For the High Rip Current Risk, dangerous rip currents.

* WHERE...Coastal Broward and Coastal Miami-Dade Counties.

* WHEN...Through Thursday afternoon.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
434 
WHUS42 KMFL 101245
CFWMFL

Coastal Hazard Message
National Weather Service Miami FL
745 AM EST Wed Nov 10 2021

FLZ172-173-102045-
/O.EXB.KMFL.CF.S.0004.211110T1245Z-211111T2000Z/
/O.CON.KMFL.RP.S.0036.000000T0000Z-211111T1800Z/
Coastal Broward-Coastal Miami-Dade-
745 AM EST Wed Nov 10 2021

...COASTAL FLOOD STATEMENT IN EFFECT THROUGH THURSDAY AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THURSDAY
AFTERNOON...

* WHAT...For the High Rip Current Risk, dangerous rip currents. 
  For the Coastal Flood Statement, isolated minor coastal 
  flooding.

* WHERE...Coastal Broward and Coastal Miami-Dade Counties.

* WHEN...Through Thursday afternoon.

* IMPACTS...Some water on low lying roads and property. Rip
  currents can sweep even the best swimmers away from shore into
  deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

FLZ168-102045-
/O.EXT.KMFL.CF.S.0004.211110T1245Z-211111T2000Z/
/O.CON.KMFL.RP.S.0036.000000T0000Z-211111T1800Z/
Coastal Palm Beach-
745 AM EST Wed Nov 10 2021

...COASTAL FLOOD STATEMENT NOW IN EFFECT THROUGH THURSDAY
AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THURSDAY
AFTERNOON...

* WHAT...For the High Rip Current Risk, dangerous rip currents. 
  For the Coastal Flood Statement, isolated minor coastal 
  flooding.

* WHERE...Coastal Palm Beach County.

* WHEN...Through Thursday afternoon.

* IMPACTS...Some water on low lying roads and property. Rip 
  currents can sweep even the best swimmers away from shore into 
  deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

FELL
805 
WHUS42 KMFL 101346
CFWMFL

Coastal Hazard Message
National Weather Service Miami FL
846 AM EST Wed Nov 10 2021

FLZ168-172-173-102200-
/O.EXT.KMFL.RP.S.0036.000000T0000Z-211112T0000Z/
/O.CON.KMFL.CF.S.0004.000000T0000Z-211111T2000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
846 AM EST Wed Nov 10 2021

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH THURSDAY EVENING...
...COASTAL FLOOD STATEMENT REMAINS IN EFFECT THROUGH THURSDAY
AFTERNOON...

* WHAT...For the High Rip Current Risk, dangerous rip currents. 
  For the Coastal Flood Statement, isolated minor coastal 
  flooding.

* WHERE...Coastal Broward, Coastal Palm Beach and Coastal Miami- 
  Dade Counties.

* WHEN...For the High Rip Current Risk, through Thursday 
  evening. For the Coastal Flood Statement, through Thursday 
  afternoon.

* IMPACTS...Some water on low lying roads and property. Rip
  currents can sweep even the best swimmers away from shore into
  deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

Fell
300 
WHUS42 KMFL 102051
CFWMFL

Coastal Hazard Message
National Weather Service Miami FL
351 PM EST Wed Nov 10 2021

FLZ168-172-173-111000-
/O.CON.KMFL.CF.S.0004.000000T0000Z-211111T2000Z/
/O.CON.KMFL.RP.S.0036.000000T0000Z-211112T0000Z/
Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade-
351 PM EST Wed Nov 10 2021

...COASTAL FLOOD STATEMENT REMAINS IN EFFECT THROUGH THURSDAY
AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THURSDAY
EVENING...

* WHAT...For the High Rip Current Risk, dangerous rip currents. 
  For the Coastal Flood Statement, isolated minor coastal 
  flooding.

* WHERE...Coastal Broward, Coastal Palm Beach and Coastal Miami- 
  Dade Counties.

* WHEN...For the High Rip Current Risk, through Thursday 
  evening. For the Coastal Flood Statement, through Thursday 
  afternoon.

* IMPACTS...Some water on low lying roads and property. Rip 
  currents can sweep even the best swimmers away from shore into 
  deeper water.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
856 
WHUS42 KMFL 110812
CFWMFL

Coastal Hazard Message
National Weather Service Miami FL
312 AM EST Thu Nov 11 2021

FLZ168-111615-
/O.EXT.KMFL.RP.S.0036.000000T0000Z-211112T0600Z/
/O.CON.KMFL.CF.S.0004.000000T0000Z-211111T2000Z/
Coastal Palm Beach-
312 AM EST Thu Nov 11 2021

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH LATE TONIGHT...
...COASTAL FLOOD STATEMENT REMAINS IN EFFECT UNTIL 3 PM EST THIS
AFTERNOON...

* WHAT...For the High Rip Current Risk, dangerous rip currents. 
  For the Coastal Flood Statement, isolated minor coastal 
  flooding.

* WHERE...Coastal Broward, Coastal Palm Beach and Coastal Miami- 
  Dade Counties.

* WHEN...For the High Rip Current Risk, through late tonight. 
  For the Coastal Flood Statement, until 3 PM EST this afternoon.

* IMPACTS...Some water on low lying roads and property. Rip
  currents can sweep even the best swimmers away from shore into
  deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

FLZ172-173-111615-
/O.CON.KMFL.CF.S.0004.000000T0000Z-211111T2000Z/
/O.CON.KMFL.RP.S.0036.000000T0000Z-211112T0000Z/
Coastal Broward-Coastal Miami-Dade-
312 AM EST Thu Nov 11 2021

...COASTAL FLOOD STATEMENT REMAINS IN EFFECT UNTIL 3 PM EST THIS
AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THIS EVENING...

* WHAT...For the High Rip Current Risk, dangerous rip currents. 
  For the Coastal Flood Statement, isolated minor coastal 
  flooding.

* WHERE...Coastal Broward, Coastal Palm Beach and Coastal Miami- 
  Dade Counties.

* WHEN...For the High Rip Current Risk, through Thursday 
  evening. For the Coastal Flood Statement, through Thursday 
  afternoon.

* IMPACTS...Some water on low lying roads and property. Rip
  currents can sweep even the best swimmers away from shore into
  deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
033 
WHUS42 KMFL 111454
CFWMFL

Coastal Hazard Message
National Weather Service Miami FL
954 AM EST Thu Nov 11 2021

FLZ168-112300-
/O.EXT.KMFL.RP.S.0036.000000T0000Z-211113T0000Z/
/O.CON.KMFL.CF.S.0004.000000T0000Z-211111T2000Z/
Coastal Palm Beach-
954 AM EST Thu Nov 11 2021

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH FRIDAY EVENING...
...COASTAL FLOOD STATEMENT REMAINS IN EFFECT UNTIL 3 PM EST THIS
AFTERNOON...

* WHAT...For the High Rip Current Risk, dangerous rip currents. 
  For the Coastal Flood Statement, isolated minor coastal 
  flooding.

* WHERE...Coastal Palm Beach County.

* WHEN...For the High Rip Current Risk, through Friday evening. 
  For the Coastal Flood Statement, until 3 PM EST this afternoon.

* IMPACTS...Some water on low lying roads and property. Rip 
  currents can sweep even the best swimmers away from shore into 
  deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

FLZ172-173-112300-
/O.CON.KMFL.CF.S.0004.000000T0000Z-211111T2000Z/
/O.CON.KMFL.RP.S.0036.000000T0000Z-211112T0000Z/
Coastal Broward-Coastal Miami-Dade-
954 AM EST Thu Nov 11 2021

...COASTAL FLOOD STATEMENT REMAINS IN EFFECT UNTIL 3 PM EST THIS
AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...For the High Rip Current Risk, dangerous rip currents. 
  For the Coastal Flood Statement, isolated minor coastal 
  flooding.

* WHERE...Coastal Broward and Coastal Miami-Dade Counties.

* WHEN...For the High Rip Current Risk, until 7 PM EST this 
  evening. For the Coastal Flood Statement, until 3 PM EST this 
  afternoon.

* IMPACTS...Some water on low lying roads and property. Rip 
  currents can sweep even the best swimmers away from shore into 
  deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

Nearby

Coastal Flood Statements in Florida, 2021Every coastal flood statement in 2021

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.