Alert archive / Florida / Coastal Flood Statements in 2023

Coastal Flood Statement 4, NWS Miami, FL

September 26, 2023Broward County, Miami-Dade County, Palm Beach County, Florida

NWS Miami, FL issued this coastal flood statement at Sep 26, 2023, 2:07 AM EDT for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 49 hr.

The area

The counties it named.

The facts

Issued
Sep 26, 2023, 2:07 AM EDT (06:07 UTC)
Expired
Sep 28, 2023, 3:00 AM EDT
In force
49 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 06:09 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

Key West, FL (KEYW), launched 00:00Z, 6.1 hours before the alert went out and 216 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, Key West, FL at 00:00Z on 2023-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3061 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Key West, FL at 00:00Z on 2023-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
3061 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
776 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this coastal flood statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Miami, FL wrote its last area forecast discussion before this coastal flood statement went out at Sep 26, 1:16 AM EDT, 51 minutes earlier.

Area forecast discussion, Sep 26, 1:16 AM EDT, 51 minutes before
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Hazardous weather outlook, Sep 25, 5:25 PM EDT, 8 hours 42 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Miami FL
525 PM EDT Mon Sep 25 2023

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
261000-
Lake Okeechobee-Biscayne Bay-
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-Glades-Hendry-
Inland Palm Beach County-Metro Palm Beach County-
Coastal Collier County-Inland Collier County-Inland Broward County-
Metro Broward County-Inland Miami-Dade County-
Metropolitan Miami Dade-Mainland Monroe-Coastal Palm Beach County-
Coastal Broward County-Coastal Miami Dade County-Far South Miami-
Dade County-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
525 PM EDT Mon Sep 25 2023

...A Few Strong or Severe Storms Possible...
...Localized Flooding Possible...
...High Risk of Rip Currents for the Palm Beach County Beaches...

This Hazardous Weather Outlook is for Atlantic coastal waters,
southeast Florida, southern Florida, southwest Florida and Gulf of
Mexico.

.DAY ONE...Tonight.

Thunderstorms: Scattered thunderstorms during the early evening
may contain gusty winds, heavy rain, and frequent lightning. In
addition, a few storms could become strong to marginally severe in
nature with damaging wind gusts and hail possible.

Wind: The strongest storms could produce wind gusts up to 60 mph.

Hail: The strongest storms could produce hail up to quarter size.

Rip Currents: A high risk for rip currents will persist across the
Palm Beach beaches today. A moderate risk of rip currents will be
possible across Broward and Miami Dade County beaches today.

Waterspouts: A few waterspouts are possible today over the area
waters.

Flooding: Slow moving or training storms may lead to localized
flooding across some of the east coast metro areas.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Scattered to numerous showers and thunderstorms will be possible
each afternoon and evening into the middle portion of the upcoming
work week. Localized flooding will continue to be possible each day
with any concentration of showers and thunderstorms over the same
areas.

There will be the potential of minor coastal flooding along the
Atlantic coast of South Florida mid to late week, especially during
periods of high tide.

An elevated risk of rip currents will likely persist along the east
coast of South Florida over the next several days.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report high wind, hail, and
flooding to the National Weather Service forecast office in Miami.

In the hours before

Local storm report, Sep 25, 9:49 PM EDT, 4 hours 18 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 8:20 PM EDTSpecial Marine WarningMFL40 min
Sep 25, 8:58 PM EDTSpecial Marine WarningMFL32 min
Sep 25, 9:26 PM EDTSpecial Marine WarningMFL34 min
Sep 26, 11:57 AM EDTSpecial Weather StatementMFLBroward33 min
Sep 26, 12:27 PM EDTSpecial Weather StatementMFLPalm Beach48 min
Sep 26, 1:14 PM EDTSpecial Weather StatementMFLMiami-Dade31 min
Sep 26, 3:02 PM EDTAreal Flood AdvisoryMFLBroward50 min
Sep 26, 4:42 PM EDTSpecial Weather StatementMFLGlades33 min
Sep 26, 5:02 PM EDTSpecial Weather StatementMFLHendry43 min
Sep 26, 5:47 PM EDTSpecial Weather StatementMFLGlades, Hendry28 min
Sep 26, 7:36 PM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade50 min

Nearby

Coastal Flood Statements in Florida, 2023Every coastal flood statement in 2023

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.