Alert archive / Florida / Coastal Flood Statements in 2022

Coastal Flood Statement 21, NWS Key West, FL

October 1, 2022Monroe County, Florida

NWS Key West, FL issued this coastal flood statement at Oct 1, 2022, 2:07 AM EDT for Monroe County, Florida. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Oct 1, 2022, 2:07 AM EDT (06:07 UTC)
Expired
Oct 1, 2022, 7:57 AM EDT
In force
6 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 06:06 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 00:00Z, 6.1 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 00:00Z on 2022-10-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 joules per kilogram.LCLEL10008507005003002001001 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 2022-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.1939Sfc1 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
17 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

631 
WHUS42 KKEY 010607
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
207 AM EDT Sat Oct 1 2022

FLZ076-012200-
/O.CAN.KKEY.CF.Y.0005.000000T0000Z-221001T1000Z/
/O.NEW.KKEY.CF.S.0021.221001T0607Z-221001T2200Z/
Monroe Upper Keys-
207 AM EDT Sat Oct 1 2022

...COASTAL FLOOD STATEMENT IN EFFECT THROUGH THIS AFTERNOON...
...COASTAL FLOOD ADVISORY IS CANCELLED...

* WHAT...Minor coastal flooding will persist in the Bayside
  communities of the Upper Keys today. Water levels have continued
  to slowly decrease during the past 24 hours, but are likely to
  remain above coastal flood statement criteria today.

* WHERE...Bayside communities of the Upper Florida Keys.

* WHEN...Through this afternoon.

* 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 are almost certain to contain a mix of 
  saltwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

FLZ077-011200-
/O.NEW.KKEY.CF.S.0021.221001T0607Z-221001T1200Z/
Monroe Middle Keys-
207 AM EDT Sat Oct 1 2022

...COASTAL FLOOD STATEMENT IN EFFECT UNTIL 8 AM EDT THIS
MORNING...

* WHAT...Minor saltwater flooding, mainly on the Bay and Gulf side
  of the Middle Keys during the overnight and early morning high 
  tide cycle.

* WHERE...Middle Florida Keys.

* WHEN...Until 8 AM EDT this 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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
1 follow-up statement
117 
WHUS42 KKEY 011157
CFWKEY

Coastal Hazard Message
National Weather Service Key West FL
757 AM EDT Sat Oct 1 2022

FLZ076-012000-
/O.CAN.KKEY.CF.S.0021.000000T0000Z-221001T2200Z/
/O.NEW.KKEY.CF.S.0022.221001T1200Z-221001T2200Z/
Monroe Upper Keys-
757 AM EDT Sat Oct 1 2022

...COASTAL FLOOD STATEMENT IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* WHAT...Minor saltwater flooding expected.

* WHERE...Upper Florida Keys.

* WHEN...Until 6 PM EDT this evening.

* 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.

&&

$$

FLZ077-011300-
/O.CAN.KKEY.CF.S.0021.000000T0000Z-221001T1200Z/
Monroe Middle Keys-
757 AM EDT Sat Oct 1 2022

...COASTAL FLOOD STATEMENT IS CANCELLED...

Water levels have receded, and coastal flooding is not expected
today.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 7:57 AM EDTCoastal Flood StatementKEYMonroe25 hr

Nearby

Coastal Flood Statements in Florida, 2022Every coastal flood statement in 2022

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.