Special Marine Warning 84, NWS Key West, FL

794 
FZUS72 KKEY 291615
MWSKEY

Marine Weather Statement
National Weather Service Key West FL
1215 PM EDT Tue Jun 29 2021

GMZ031-032-291645-
/O.CON.KKEY.MA.W.0084.000000T0000Z-210629T1645Z/
1215 PM EDT Tue Jun 29 2021

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1245 PM EDT...

For the following areas...
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge...
Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood
Sound...

At 1215 PM EDT, a strong thunderstorm was located over Bradley Key,
moving northwest at 20 knots.

HAZARD...Wind gusts 34 knots or greater.

SOURCE...National Weather Service Meteorologist.

IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher 
         waves, frequent lightning, and heavy downpours.

Locations in the warning include...
Oxfoot Bank Light, Dump Keys, Mosquito Point, First National Bank,
Bradley Key, Man Of War Key and Frank Key.

LAT...LON 2518 8080 2522 8078 2521 8076 2516 8080
      2514 8074 2514 8072 2519 8076 2520 8076
      2514 8071 2516 8065 2496 8101 2511 8130
      2512 8100 2518 8081 2521 8086 2522 8084
TIME...MOT...LOC 1615Z 117DEG 19KT 2515 8097 

HAIL...0.00IN
WIND...>34KTS

$$

BT

669 
FZUS72 KKEY 291634
MWSKEY

Marine Weather Statement
National Weather Service Key West FL
1234 PM EDT Tue Jun 29 2021

GMZ031-032-291644-
/O.CAN.KKEY.MA.W.0084.000000T0000Z-210629T1645Z/
1234 PM EDT Tue Jun 29 2021

...THE SPECIAL MARINE WARNING IS CANCELLED...

The affected areas were... 
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge...
Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood
Sound...

The thunderstorm has moved out of the area and no longer poses a
significant threat to boaters.

LAT...LON 2518 8080 2522 8078 2521 8076 2516 8080
      2514 8074 2514 8072 2519 8076 2520 8076
      2514 8071 2516 8065 2496 8101 2511 8130
      2512 8100 2518 8081 2521 8086 2522 8084
TIME...MOT...LOC 1631Z 117DEG 19KT 2520 8107 

$$

BT

Area Forecast Discussion
National Weather Service Key West FL
1038 AM EDT Tue Jun 29 2021

.DISCUSSION...
Another wet day is shaping up for the Florida Keys. The Middle and
Upper Keys received most of the rainfall this morning, with
Marathon already having received 0.66 inches this morning. The
daily rainfall record for Marathon is currently 0.68 inches, which
will likely be broken in the next hour or two with the convective
activity over the Florida Straits moving northwest towards the
Middle and Upper Keys. High pressure is currently anchored in the
western Atlantic and is supporting primarily moderate east to
southeast breezes across the coastal waters. Marine observations
are ranging from 9 to 13 knots in the nearshore waters. Aloft, an
upper-level low is moving across the southern edge of the Gulf
States. This is keeping an inhibition and drier air at bay, so
storms are flourishing in this environment. The 12Z KEY RAOB
recorded a PW of 2.12 inches and ample fuel for developing storms,
so have retained the 60% PoPs for the remainder of the day due to
this very favorable environment for convective activity. no
changes planned for needed for the forecast.

&&

.MARINE...
There are no watches, warnings, or advisories currently in effect
for the coastal waters of the Florida Keys. From synopsis, High
pressure centered over the western North Atlantic will maintain
moderate east to southeast breezes this afternoon into tonight,
with breezes slowly decreasing tomorrow. Breezes will diminish
further tomorrow night, then light to gentle southeast breezes
will prevail from Thursday through the end of the week.

&&

.AVIATION...
VFR conditions will prevail at both island terminals through 12z
Wednesday morning. Scattered showers and isolated thunderstorms are
expected to proliferate by late morning in MTH and by the early
afternoon at EYW. This will result in bouts of MVFR ceilings, IFR
visibilities, and wind gusts near 25 knots. Confidence in convective
activity is high enough to mention VCSH throughout the entire TAF
period, and specific timing and impacts will be reserved to future
(possibly frequent) amendments and TEMPOs.

&&

.CLIMATE...
On this day in 1920, the daily record low temperature of 69F was
recorded in Key West. Temperature records date back to 1872.

&&

.KEY WATCHES/WARNINGS/ADVISORIES...
FL...None.
GM...None.
&&

Public/Marine/Fire...NB
Aviation/Nowcasts....BT
Data Acquisition.....KR

Visit us on the web at weather.gov/key

Follow us on Facebook and Twitter at:
www.facebook.com/nwskeywest
www.twitter.com/nwskeywest

Hazardous Weather Outlook
National Weather Service Key West FL
428 AM EDT Tue Jun 29 2021

FLZ076>078-GMZ031>035-042>044-052>055-072>075-301000-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge out 20 NM-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge 20 to 60 NM out-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal 20 to 60 NM out-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
428 AM EDT Tue Jun 29 2021

This Hazardous Weather Outlook is for the Florida Keys and
adjacent coastal waters.

.DAY ONE...TODAY AND TONIGHT

Scattered thunderstorms are expected today and tonight. The
primary thunderstorm hazards will be lightning strikes and locally
gusty winds.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Scattered thunderstorms are expected Wednesday, with isolated
thunderstorms possible from Wednesday night through Monday. The
primary thunderstorm hazards will be lightning strikes and locally
gusty winds.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.