Small Craft Advisory 20, NWS Miami, FL

674 
WHUS72 KMFL 260812
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
412 AM EDT Sat May 26 2018


GMZ676-261615-
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
412 AM EDT Sat May 26 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY...

* Winds and Seas...Southeast winds 20 to 25 kt with gusts up to
  gale force. Seas 7 to 10 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

AMZ610-630-650-651-670-671-GMZ656-657-261615-
/O.CON.KMFL.SC.Y.0020.180526T1200Z-180528T1200Z/
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-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
412 AM EDT Sat May 26 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING
TO 8 AM EDT MONDAY...

* Winds and Seas...Southeast winds 15 to 25 kt with gusts up to 
  30 kt. Seas 4 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

http://www.weather.gov/miami

093 
WHUS72 KMFL 261536
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
1136 AM EDT Sat May 26 2018

...TROPICAL STORM WATCH HAS BEEN ISSUED FOR THE OFFSHORE GULF
WATERS...

.Subtropical storm Alberto will be moving north across the eastern
Gulf of Mexico through the rest of the weekend while remaining
well offshore the southwest florida coast. Yet there is a
reasonable chance of the offshore waters of Collier county beyond
20 nautical miles experiencing tropical storm force winds
particularly tonight and through the early part of Sunday.
Therefore a tropical storm watch has been added to those coastal
waters.

GMZ676-262345-
/O.NEW.KMFL.TR.A.1001.180526T1536Z-000000T0000Z/
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
1136 AM EDT Sat May 26 2018

...TROPICAL STORM WATCH IN EFFECT...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY...

The National Weather Service in Miami has issued a Tropical Storm
Watch, which is in effect.

* Winds and Seas...South winds 20 to 30 kt with gusts up to 35 kt.
  Seas 7 to 10 feet. Possibility of sustained tropical storm 
  force winds just above 34 knots across portions of the area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Tropical Storm Watch means sustained winds above 34 kts are 
possible due to a tropical storm within 48 hours.

&&

$$

AMZ610-630-650-651-670-671-GMZ656-657-262345-
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
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-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
1136 AM EDT Sat May 26 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY...

* Winds and Seas...Southeast winds 15 to 25 kt with gusts up to 
  30 kt. Seas 4 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

http://www.weather.gov/miami

942 
WHUS72 KMFL 262111
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
511 PM EDT Sat May 26 2018

...TROPICAL STORM WARNING HAS BEEN ISSUED FOR THE OFFSHORE GULF 
WATERS...

.Subtropical storm Alberto will be moving north across the
eastern Gulf of Mexico through the rest of the weekend while
remaining well offshore the southwest florida coast. Tropical
storm force winds are likely across the offshore waters of 
Collier county beyond 20 nautical miles tonight and through the 
early part of Sunday. Therefore a tropical storm warning has been 
issued for those coastal waters.

GMZ676-271200-
/O.CAN.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
/O.UPG.KMFL.TR.A.1001.000000T0000Z-000000T0000Z/
/O.NEW.KMFL.TR.W.1001.180526T2111Z-000000T0000Z/
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
511 PM EDT Sat May 26 2018

...TROPICAL STORM WARNING IN EFFECT...

The National Weather Service in Miami has replaced the small craft
advisory and tropical storm watch with a Tropical Storm Warning, 
now in effect. 

* Winds and Seas...South southeast winds 25 to 35 kts with gusts
  up to 40 kt. Seas 7 to 10 feet. Conditions are forecast to
  subside below tropical storm force winds by late tomorrow. 
  Small craft advisory conditions will then continue through 
  Monday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tropical Storm Warning means sustained winds of above 34 kt or 
39 mph are expected somewhere across the area due to a tropical 
storm within 36 hours.

&&

$$

AMZ610-630-650-651-670-671-GMZ656-657-271200-
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
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-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
511 PM EDT Sat May 26 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY...

* Winds and Seas...Southeast winds 15 to 25 kt with gusts up to 
  30 kt. Seas 4 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

http://www.weather.gov/miami

594 
WHUS72 KMFL 270320
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
1120 PM EDT Sat May 26 2018

...TROPICAL STORM WARNING IN EFFECT FOR THE OFFSHORE GULF 
WATERS...

.Subtropical storm Alberto will be moving north across the
eastern Gulf of Mexico through the rest of the weekend while
remaining well offshore the southwest florida coast. Tropical
storm force winds are likely across the offshore waters of
Collier county beyond 20 nautical miles tonight and through the
early part of Sunday. Therefore a Tropical Storm Warning has been
issued for those coastal waters.

GMZ676-271130-
/O.CON.KMFL.TR.W.1001.000000T0000Z-000000T0000Z/
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
1120 PM EDT Sat May 26 2018

...TROPICAL STORM WARNING REMAINS IN EFFECT...

* Winds and Seas...South winds 30 to 40 kt with gusts up to 50 
  kt. Seas 7 to 10 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tropical Storm Warning means sustained winds of above 34 kt or
39 mph are expected somewhere across the area due to a tropical
storm within 36 hours.

&&

$$

AMZ610-630-650-651-670-671-GMZ656-657-271130-
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
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-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
1120 PM EDT Sat May 26 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY...

* Winds and Seas...Southeast winds 15 to 25 kt with gusts up to 
  30 kt. Seas 4 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

http://www.weather.gov/miami

647 
WHUS72 KMFL 270911
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
511 AM EDT Sun May 27 2018

...TROPICAL STORM WARNING IN EFFECT FOR THE OFFSHORE GULF
WATERS...

.Subtropical storm Alberto will be moving north across the
eastern Gulf of Mexico through the rest of the weekend while
remaining well offshore the southwest florida coast. Tropical
storm force winds are likely across the offshore waters of
Collier county beyond 20 nautical miles tonight and through the
early part of Sunday. Therefore a Tropical Storm Warning has been
issued for those coastal waters.

GMZ676-271715-
/O.CON.KMFL.TR.W.1001.000000T0000Z-000000T0000Z/
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
511 AM EDT Sun May 27 2018

...TROPICAL STORM WARNING REMAINS IN EFFECT...

* Winds and Seas...South winds 30 to 35 kt with gusts up to 50 kt.
  Seas 7 to 11 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tropical Storm Warning means sustained winds of above 34 kt or
39 mph are expected somewhere across the area due to a tropical
storm within 36 hours.

&&

$$

AMZ610-630-650-651-670-671-GMZ656-657-271715-
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
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-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
511 AM EDT Sun May 27 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY...

* Winds and Seas...South winds 20 to 30 kt with gusts up to 35 
  kt. Seas 4 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

http://www.weather.gov/miami

063 
WHUS72 KMFL 271502
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
1102 AM EDT Sun May 27 2018

...TROPICAL STORMS WARNING FOR OFFSHORE GULF WATERS REPLACED WITH
A SMALL CRAFT ADVISORY...

.Subtropical storm Alberto continues to move north across Eastern
Gulf of Mexico away from the local waters with concerns for 
tropical storm force winds across the offshore waters of collier 
county now diminishing. Therefore the tropical storm warning for 
that area has been downgraded to a small craft advisory.

GMZ676-280000-
/O.CAN.KMFL.TR.W.1001.000000T0000Z-000000T0000Z/
/O.EXA.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
1102 AM EDT Sun May 27 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT MONDAY...
...TROPICAL STORM WARNING IS CANCELLED...

The National Weather Service in Miami has issued a Small Craft
Advisory, which is in effect until 8 AM EDT Monday. The Tropical
Storm Warning has been cancelled.

* Winds and Seas...South winds 15 to 25 kt with gusts up to 30 kt.
  Seas 6 to 11 feet. Highers wind gusts are possible in
  thunderstorms.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

AMZ610-630-650-651-670-671-GMZ656-657-280000-
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
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-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
1102 AM EDT Sun May 27 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY...

* Winds and Seas...South winds 15 to 25 kt with gusts up to 30 
  kt. Seas 4 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

http://www.weather.gov/miami

527 
WHUS72 KMFL 271956
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
356 PM EDT Sun May 27 2018

...SMALL CRAFT ADVISORY IN EFFECT ACROSS ALL OF THE SOUTH FLORIDA
COASTAL WATERS...

.Subtropical storm Alberto continues to move north across Eastern
Gulf of Mexico away from local waters. Hazardous conditions for 
small crafts remain behind for small boaters and therefore small 
craft advisories remain in effect for all of the South Florida 
waters.

AMZ650-651-670-671-281000-
/O.EXT.KMFL.SC.Y.0020.000000T0000Z-180528T2200Z/
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-
356 PM EDT Sun May 27 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EDT MONDAY...

* Winds and Seas...South winds 15 to 25 kt with gusts up to 30 
  kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

AMZ610-630-GMZ656-657-676-281000-
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
Lake Okeechobee-Biscayne Bay-
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-
356 PM EDT Sun May 27 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY...

* Winds and Seas...South winds 15 to 25 kt with gusts up to 30 kt.
  Seas greater than 7 feet offshore collier county subsiding
  overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

http://www.weather.gov/miami

121 
WHUS72 KMFL 280739
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
339 AM EDT Mon May 28 2018

AMZ650-651-670-671-281545-
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T2200Z/
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-
339 AM EDT Mon May 28 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* Winds and Seas...South winds 20 to 25 kt with gusts up to 30 
  kt. Seas 3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

AMZ610-630-GMZ656-657-676-281200-
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
Lake Okeechobee-Biscayne Bay-
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-
339 AM EDT Mon May 28 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...

* Winds and Seas...South winds 20 kt with gusts up to 25 kt. Seas
  3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

http://www.weather.gov/miami

224 
WHUS72 KMFL 281216
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
816 AM EDT Mon May 28 2018

AMZ610-630-GMZ656-657-676-281330-
/O.EXP.KMFL.SC.Y.0020.000000T0000Z-180528T1200Z/
Lake Okeechobee-Biscayne Bay-
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-
816 AM EDT Mon May 28 2018

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds have subsided below advisory criteria over the Gulf waters,
therefore, the advisory has expired. Small craft should continue 
to exercise caution today and tonight.

$$

AMZ650-651-670-671-282030-
/O.CON.KMFL.SC.Y.0020.000000T0000Z-180528T2200Z/
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-
816 AM EDT Mon May 28 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* Winds and Seas...South winds 20 to 25 kt with gusts up to 30 kt.
  Seas 4 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

http://www.weather.gov/miami

448 
WHUS72 KMFL 281948
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
348 PM EDT Mon May 28 2018

AMZ650-651-670-671-290300-
/O.EXT.KMFL.SC.Y.0020.000000T0000Z-180529T0300Z/
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-
348 PM EDT Mon May 28 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS 
EVENING...

* Winds and Seas...South winds 20 to 25 kt with gusts up to 30 
  kt. Seas 3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

http://www.weather.gov/miami

Area Forecast Discussion
National Weather Service Miami FL
209 PM EDT Fri May 25 2018

.AVIATION...
Widespread showers have enveloped South Florida today, so TEMPO
groups in place through the evening. There may be a brief lull
tonight before more widespread showers move in after 8-12z
Saturday (handled with SHRA). Isolated thunderstorms are possible,
but aside from after daybreak Saturday in Miami-Dade terminals,
probability of lightning is too low to warrant mention in the
TAFs. On and off CIG restrictions are expected through this
evening associated with the heavier showers, but more widespread
sub-VFR CIGS are likely late tonight and through the day Sunday as
the atmosphere continues to near toward complete saturation. ESE
wind around 10 KT through sunset, then 5-10 KT overnight,
increasing to 15 KT or so by Saturday afternoon.

&&

.UPDATE...
Flood watch has been posted effective 12z Saturday through 0z
Monday. Widespread rainfall amounts of 4 to 8 inches, with locally
much higher amounts, are expected, and this may lead to flooding.
Additional information on this watch and subsequent forecast
updates will come later later this afternoon, but for now, see
MIAFFAMFL for information.

&&

.PREV DISCUSSION... /issued 1121 AM EDT Fri May 25 2018/

UPDATE 2...
The tropical storm probabilities on newly formed Subtropical
Storm Alberto are 15 percent or less for all of South Florida.
Therefore, no updates are required at this time to the forecast
for South Florida.

UPDATE 2...54/BNB

PREV DISCUSSION... /issued 1001 AM EDT Fri May 25 2018/

UPDATE...
Scattered showers have moved inland with sea breeze from the
Atlantic. Expect coverage to increase through the day, especially
across the western interior, where locally heavy rainfall is most
likely. No significant changes in the forecast this morning.
Convective chances appear quite low based on 12z RAOB analysis.
The tropical disturbance east of the Yucatan Peninsula now has a
90 percent chance of tropical formation in the next 48 hours, and
this feature, the main player in our holiday weekend weather, will
continue to be closely monitored.

PREV DISCUSSION... /issued 347 AM EDT Fri May 25 2018/

DISCUSSION...
Primary forecast concern continues to be the probable development of
a tropical cyclone in the central or eastern Gulf of Mexico over the
next few days. The National Hurricane Center currently indicates a
70 percent chance of tropical cyclone formation within 48 hours
and a 90 percent chance of development within five days.

Some important differences remain among the numerical models and
ensembles regarding the eventual track and inner structure of the
cyclone, and how it interacts with a developing shortwave trough
over the western Gulf, but there is general agreement in the
disturbance initially moving N or NNE out of the Yucatan Channel
later tonight into the eastern or central Gulf, before bending
northwestward as it moves into the northern or northeastern Gulf
Sunday. The closest approach of the low to the SW FL Gulf Coast
will likely be Saturday night or Sunday morning.

A deep, long southerly fetch will set up over South Florida
tonight into the weekend, between the developing cyclone over the
Gulf and the ridge of high pressure over the western Atlantic.
This plume will be characterized by anomalously high atmospheric
moisture content, with precipitable water values in the 2 to 2.4
inch range (90th-plus percentile of the climatological range for
late May). This will promote efficient warm rain processes and the
potential for excessive rainfall rates. Bands of heavy rain that
train over the same location will be a concern for significant
street flooding and may even threaten some structures in
vulnerable low-lying areas. Given the uncertainty in the location
and timing of the heaviest rain, it is still too early for a
Flood Watch to be issued, though one may be required in later
forecasts.

A low level jet of 35 to 45 kts is also likely to set up over S
FL late Saturday into Sunday. Forecast hodographs show a strong
anti-clockwise loop in the lower troposphere, with 0-1 km SREH
potentially exceeding 200 m2/s2 at times, along with sufficient
CAPE of 500-1000 J/kg. Therefore, isolated tornadoes will be a
concern with any discrete convective elements during that time
period.

On Monday, the cyclone's forward motion slows or stalls over the
deep south, keeping S FL in the southerly plume, so high chances
for showers and thunderstorms will continue with ongoing
potential for locally heavy rain.

By mid-week, models begin to diverge on how quickly to kick out
or fill the surface cyclone, with some indication upper troughing
may continue into the Gulf with a west Atlantic high remaining in
place. This may continue the pattern of moist southerly flow and
elevated rain chances, but given the uncertainty, POPs are trended
gradually toward climatology by later in the week.

MARINE...
With the Gulf low moving south to north just west of our Gulf
waters, southeasterly winds over the local waters will increase
steadily tonight through Saturday over the local waters, peaking
out Saturday night into Sunday. There is the potential for
frequent gusts near or above tropical storm force in the offshore
Gulf waters. Hazardous seas may peak near 10 feet by Saturday
night in the offshore Gulf waters and near 7 feet in the Atlantic
waters.

BEACH FORECAST...
The risk of rip currents will increase at both the Atlantic
and Gulf beaches through the weekend.
&&

.PRELIMINARY POINT TEMPS/POPS...
West Palm Beach  73  80  74  83 /  50  80  60  80
Fort Lauderdale  75  80  76  83 /  60  80  70  80
Miami            74  80  76  83 /  70  80  70  80
Naples           71  81  73  85 /  70  90  70  80

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...Flood Watch from Saturday morning through Sunday evening for
     FLZ063-066>075-168-172>174.

AM...None.
GM...None.
&&

UPDATE...23/SK
DISCUSSION...22/KS
MARINE...22/KS
AVIATION...23/SK
BEACH FORECAST...22/KS

Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
957 AM EDT Fri May 25 2018

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
260200-
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-Metro Palm Beach-Coastal Collier-Inland Collier-
Inland Broward-Metro Broward-Inland Miami-Dade-Metro Miami-Dade-
Mainland Monroe-Coastal Palm Beach-Coastal Broward-Coastal Miami-
Dade-Far South Miami-Dade-
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-
957 AM EDT Fri May 25 2018

...LOCALLY HEAVY RAINFALL MAY LEAD TO FLOODING...
...MODERATE RISK OF RIP CURRENTS ATLANTIC BEACHES...

This hazardous weather outlook is for South Florida.

.DAY ONE...TODAY AND TONIGHT

Rip currents: There is a moderate risk of rip currents along the
Atlantic beaches today.

Thunderstorms: Isolated thunderstorms are possible today, with
slightly greater coverage possible late tonight over far southern
Florida. Cloud-to-ground lightning is the primary threat.

Flooding: Excessive rainfall could produce flooding over portions of
South Florida. The heaviest rainfall and greatest threat for flooding
may emerge late tonight over the Miami metropolitan area.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A tropical disturbance is forecast to lift slowly northward into the
Gulf of Mexico this weekend, bringing another surge of deep tropical
moisture to South Florida. Regardless of any development, numerous
to widespread showers and some thunderstorms remain in the forecast
for the Memorial Day weekend. Heavy rainfall is possible during this
time, and localized flooding is possible. In addition, gusty winds
and locally rough seas, and occasional lightning may accompany this
activity. Isolated tornadoes particularly Saturday and Sunday are
also a concern.

The risk of rip currents will remain elevated for the Atlantic
beaches through the Memorial Day weekend. Elevated seas and rip
current risks are also possible this weekend into early next week
over the Gulf waters and Collier beaches.

.SPOTTER INFORMATION STATEMENT...

Widespread spotter activation is not anticipated, however individual
spotters are encouraged to report flooding to the National Weather
Service forecast office in Miami.

For more information...visit the National Weather Service in
Miami website at www.weather.gov/miami.