Alert archive / Florida / Coastal Flood Statements in 2021

Coastal Flood Statement 5, NWS Key West, FL

November 5, 2021Monroe County, Florida

NWS Key West, FL issued this coastal flood statement at Nov 5, 2021, 8:28 PM EDT for Monroe County, Florida. It was in force for 7 days.

The area

The counties it named.

The facts

Issued
Nov 5, 2021, 8:28 PM EDT (00:28 UTC)
Expired
Nov 12, 2021, 11:00 AM EST
In force
7 days
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 00:29 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, 0.5 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 00:00Z on 2021-11-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 51 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 2021-11-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
51 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
1014 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

131 
WHUS42 KKEY 060028
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
828 PM EDT Fri Nov 5 2021

FLZ076>078-060830-
/O.NEW.KKEY.CF.S.0005.211106T0028Z-211106T1000Z/
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
828 PM EDT Fri Nov 5 2021

* WHAT...Minor saltwater flooding expected.

* WHERE...Florida Keys.

* WHEN...This evening through the early morning hours Saturday

* IMPACTS...Minor saltwater flooding of low elevation streets and
  lots is likely. Some storm drains will overflow, and some
  seawalls and docks will be overtopped. Boaters can expect less
  clearance under fixed bridges. Motorists should remember that
  persistent puddles around the times of high tide are almost
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
17 follow-up statements
499 
WHUS42 KKEY 060823
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
423 AM EDT Sat Nov 6 2021

FLZ076>078-061630-
/O.EXT.KKEY.CF.S.0005.000000T0000Z-211107T1000Z/
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
423 AM EDT Sat Nov 6 2021

* WHAT...Minor saltwater flooding expected.

* WHERE...Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
166 
WHUS42 KKEY 061532
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
1132 AM EDT Sat Nov 6 2021

FLZ076>078-070000-
/O.CON.KKEY.CF.S.0005.000000T0000Z-211107T1000Z/
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
1132 AM EDT Sat Nov 6 2021

* WHAT...Minor saltwater flooding expected.

* WHERE...Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

* ADDITIONAL DETAILS...Minor saltwater flooding is expected mainly
  within a few hours of high tide late this evening through the
  early morning hours Sunday. However, portions of the far Upper
  Florida Keys along Florida Bay are likely to see continuous
  minor saltwater flooding throughout this afternoon and
  continuing through through at least early next week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
924 
WHUS42 KKEY 062006
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
406 PM EDT Sat Nov 6 2021

FLZ076>078-070415-
/O.EXT.KKEY.CF.S.0005.000000T0000Z-211107T1200Z/
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
406 PM EDT Sat Nov 6 2021

* WHAT...Minor saltwater flooding expected.

* WHERE...Florida Keys.

* WHEN...Through Sunday morning.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

* ADDITIONAL DETAILS...Minor saltwater flooding is expected 
  mainly within a few hours of high tide late this evening 
  through the early morning hours Sunday. However, portions of 
  the far Upper Florida Keys along Florida Bay are likely to see 
  continuous minor saltwater flooding throughout this afternoon 
  and continuing through through at least early next week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
282 
WHUS42 KKEY 070903
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
403 AM EST Sun Nov 7 2021

FLZ076-078-071015-
/O.CAN.KKEY.CF.S.0005.000000T0000Z-211107T1200Z/
Monroe Upper Keys-Monroe Lower Keys-
403 AM EST Sun Nov 7 2021

The Coastal Flood Statement is cancelled for the lower and upper
Keys.

$$

FLZ077-071715-
/O.EXT.KKEY.CF.S.0005.000000T0000Z-211108T1000Z/
Monroe Middle Keys-
403 AM EST Sun Nov 7 2021

* WHAT...Minor saltwater flooding.

* WHERE...Middle Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
841 
WHUS42 KKEY 071219
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
719 AM EST Sun Nov 7 2021

FLZ076-081000-
/O.EXA.KKEY.CF.S.0005.000000T0000Z-211108T1000Z/
Monroe Upper Keys-
719 AM EST Sun Nov 7 2021

* WHAT...Minor saltwater flooding.

* WHERE...Upper Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

* ADDITIONAL DETAILS...The saltwater flooding across the Bayside 
  communities of the Upper Keys may persist for several days.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

FLZ077-081000-
/O.CON.KKEY.CF.S.0005.000000T0000Z-211108T1000Z/
Monroe Middle Keys-
719 AM EST Sun Nov 7 2021

* WHAT...Minor saltwater flooding.

* WHERE...Middle Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets and
  lots is likely. Some storm drains will overflow, and some
  seawalls and docks will be overtopped. Boaters can expect less
  clearance under fixed bridges. Motorists should remember that
  persistent puddles around the times of high tide are almost
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

CLR
345 
WHUS42 KKEY 080917
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
417 AM EST Mon Nov 8 2021

FLZ076-077-081730-
/O.EXT.KKEY.CF.S.0005.000000T0000Z-211109T1000Z/
Monroe Upper Keys-Monroe Middle Keys-
417 AM EST Mon Nov 8 2021

* WHAT...Minor saltwater flooding.

* WHERE...Middle Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
333 
WHUS42 KKEY 082315
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
615 PM EST Mon Nov 8 2021

FLZ076-077-090715-
/O.CON.KKEY.CF.S.0005.000000T0000Z-211109T1000Z/
Monroe Upper Keys-Monroe Middle Keys-
615 PM EST Mon Nov 8 2021

* WHAT...Minor saltwater flooding.

* WHERE...Middle and Upper Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets and
  lots is likely. Some storm drains will overflow, and some
  seawalls and docks will be overtopped. Boaters can expect less
  clearance under fixed bridges. Motorists should remember that
  persistent puddles around the times of high tide are almost
  certain to contain a mix of saltwater.|.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
583 
WHUS42 KKEY 090946
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
446 AM EST Tue Nov 9 2021

FLZ076-077-091800-
/O.EXT.KKEY.CF.S.0005.000000T0000Z-211110T1000Z/
Monroe Upper Keys-Monroe Middle Keys-
446 AM EST Tue Nov 9 2021

* WHAT...Minor saltwater flooding.

* WHERE...Middle and Upper Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
715 
WHUS42 KKEY 091933
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
Issued by National Weather Service Jacksonville FL
233 PM EST Tue Nov 9 2021

FLZ076-077-101000-
/O.CON.KKEY.CF.S.0005.000000T0000Z-211110T1000Z/
Monroe Upper Keys-Monroe Middle Keys-
233 PM EST Tue Nov 9 2021

* WHAT...Minor saltwater flooding.

* WHERE...Middle and Upper Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets and
  lots is likely. Some storm drains will overflow, and some
  seawalls and docks will be overtopped. Boaters can expect less
  clearance under fixed bridges. Motorists should remember that
  persistent puddles around the times of high tide are almost
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
157 
WHUS42 KKEY 100924
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
424 AM EST Wed Nov 10 2021

FLZ076-077-101730-
/O.EXT.KKEY.CF.S.0005.000000T0000Z-211111T1000Z/
Monroe Upper Keys-Monroe Middle Keys-
424 AM EST Wed Nov 10 2021

* WHAT...Minor saltwater flooding.

* WHERE...Middle and Upper Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
294 
WHUS42 KKEY 102104
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
404 PM EST Wed Nov 10 2021

FLZ076-077-111000-
/O.CON.KKEY.CF.S.0005.000000T0000Z-211111T1000Z/
Monroe Upper Keys-Monroe Middle Keys-
404 PM EST Wed Nov 10 2021

* WHAT...Minor saltwater flooding.

* WHERE...Middle and Upper Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
879 
WHUS42 KKEY 110328
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
1028 PM EST Wed Nov 10 2021

FLZ078-111000-
/O.EXA.KKEY.CF.S.0005.000000T0000Z-211111T1000Z/
Monroe Lower Keys-
1028 PM EST Wed Nov 10 2021

* WHAT...Minor saltwater flooding.

* WHERE...Lower Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

FLZ076-077-111000-
/O.CON.KKEY.CF.S.0005.000000T0000Z-211111T1000Z/
Monroe Upper Keys-Monroe Middle Keys-
1028 PM EST Wed Nov 10 2021

* WHAT...Minor saltwater flooding.

* WHERE...Middle and Upper Florida Keys.

* WHEN...Through late tonight.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
845 
WHUS42 KKEY 110741
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
241 AM EST Thu Nov 11 2021

FLZ077-111200-
/O.CAN.KKEY.CF.S.0005.000000T0000Z-211111T1000Z/
/O.NEW.KKEY.CF.Y.0002.211111T0741Z-211111T1200Z/
Monroe Middle Keys-
241 AM EST Thu Nov 11 2021

...COASTAL FLOOD ADVISORY IN EFFECT THROUGH THIS MORNING...

* WHAT...Saltwater flooding is expected over the Middle Keys, 
  with total water levels reaching 2 to 2.5 feet above mean sea 
  level. This is about 1.1 feet above the normal predicted tide.

* WHERE...Middle Keys

* WHEN...Through early Thursday morning.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater. 

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

&&

$$

FLZ076-078-111545-
/O.EXT.KKEY.CF.S.0005.000000T0000Z-211112T1000Z/
Monroe Upper Keys-Monroe Lower Keys-
241 AM EST Thu Nov 11 2021

* WHAT...Minor saltwater flooding.

* WHERE...Lower and Upper Florida Keys.

* WHEN...Through late Thursday.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater. 

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
219 
WHUS42 KKEY 111156
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
656 AM EST Thu Nov 11 2021

FLZ077-112000-
/O.CAN.KKEY.CF.Y.0002.000000T0000Z-211111T1200Z/
/O.EXA.KKEY.CF.S.0005.000000T0000Z-211112T1000Z/
Monroe Middle Keys-
656 AM EST Thu Nov 11 2021

...COASTAL FLOOD ADVISORY IS CANCELLED...

* WHAT...Water levels have receded below coastal flood advisory,
  however a Coastal Flood Statement is now in effect for the
  middle Keys due to minor saltwater flooding.

* WHERE...Middle Florida Keys.

* WHEN...Through late Thursday.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater. 

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

FLZ076-112000-
/O.CAN.KKEY.CF.S.0005.000000T0000Z-211112T1000Z/
/O.NEW.KKEY.CF.Y.0003.211111T1156Z-211111T2100Z/
Monroe Upper Keys-
656 AM EST Thu Nov 11 2021

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WHAT...Saltwater flooding is expected over the upper Keys, with
  total water levels reaching 0.75 to 1.0 feet above mean sea
  level. 

* WHERE...Upper Florida Keys.

* WHEN...Through late Thursday.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater. 

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

&&

$$

FLZ078-112000-
/O.CON.KKEY.CF.S.0005.000000T0000Z-211112T1000Z/
Monroe Lower Keys-
656 AM EST Thu Nov 11 2021

* WHAT...Minor saltwater flooding.

* WHERE...Lower and Upper Florida Keys.

* WHEN...Through late Thursday.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater. 

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
598 
WHUS42 KKEY 111557
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
1057 AM EST Thu Nov 11 2021

FLZ076-120000-
/O.EXT.KKEY.CF.Y.0003.000000T0000Z-211112T1000Z/
Monroe Upper Keys-
1057 AM EST Thu Nov 11 2021

...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 5 AM EST FRIDAY...

* WHAT...Saltwater flooding is expected over the upper Keys, 
  with total water levels reaching 0.75 to 1.0 feet above mean 
  sea level.

* WHERE...Upper Florida Keys.

* WHEN...Until 5 AM EST Friday.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

&&

$$

FLZ077-078-120000-
/O.CON.KKEY.CF.S.0005.000000T0000Z-211112T1000Z/
Monroe Middle Keys-Monroe Lower Keys-
1057 AM EST Thu Nov 11 2021

* WHAT...Minor saltwater flooding.

* WHERE...Lower and Upper Florida Keys.

* WHEN...Through late Thursday.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
523 
WHUS42 KKEY 112107
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
407 PM EST Thu Nov 11 2021

FLZ076-121000-
/O.CON.KKEY.CF.Y.0003.000000T0000Z-211112T1000Z/
Monroe Upper Keys-
407 PM EST Thu Nov 11 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
FRIDAY...

* WHAT...Saltwater flooding is expected over the upper Keys, 
  with total water levels reaching 0.75 to 1.0 feet above mean 
  sea level.

* WHERE...Upper Florida Keys.

* WHEN...Until 5 AM EST Friday.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

&&

$$

FLZ077-078-121000-
/O.CON.KKEY.CF.S.0005.000000T0000Z-211112T1000Z/
Monroe Middle Keys-Monroe Lower Keys-
407 PM EST Thu Nov 11 2021

* WHAT...Minor saltwater flooding.

* WHERE...Lower and Upper Florida Keys.

* WHEN...Through late Thursday.

* IMPACTS...Minor saltwater flooding of low elevation streets 
  and lots is likely. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
097 
WHUS42 KKEY 120956
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
456 AM EST Fri Nov 12 2021

FLZ076-121600-
/O.EXT.KKEY.CF.Y.0003.000000T0000Z-211112T1600Z/
Monroe Upper Keys-
456 AM EST Fri Nov 12 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT...

* WHAT...Saltwater flooding is expected across some of the Bayside
  communities of Key Largo. Reports from members of the public 
  and also National Park Service water level sensors indicate 
  coastal flooding continues. Recent trends indicate water levels 
  may have peaked, with some improvement possible over the next 
  couple of days.
 
* WHERE...Upper Florida Keys.

* WHEN...Through this morning. 

* IMPACTS...Saltwater flooding of low elevation streets and lots
  is likely. Storm drains will overflow, and seawalls and docks 
  will be overtopped. Boaters can expect less clearance under 
  fixed bridges. Motorists should remember that persistent puddles
  around the times of high tide are almost certain to contain a 
  mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

&&

$$

FLZ077-078-121600-
/O.EXT.KKEY.CF.S.0005.000000T0000Z-211112T1600Z/
Monroe Middle Keys-Monroe Lower Keys-
456 AM EST Fri Nov 12 2021

* WHAT...Minor saltwater flooding is possible this morning during
  high tide. Recent trends indicate water levels may have peaked,
  with some improvement possible over the next day or so. 

* WHERE...Lower and Middle Florida Keys.

* WHEN...Until later this morning.

* IMPACTS...Minor saltwater flooding of low elevation streets and
  lots is possible. Some storm drains will overflow, and some 
  seawalls and docks will be overtopped. Boaters can expect less 
  clearance under fixed bridges. Motorists should remember that 
  persistent puddles around the times of high tide are almost 
  certain to contain a mix of saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

CLR

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.