Marine Weather Net

Biscayne Bay Marine Forecast


TODAY

W
WINDS
5 - 15
KNOTS

TONIGHT

NW
WINDS
15 - 20
KNOTS

SATURDAY

NW
WINDS
15 - 20
KNOTS

SATURDAY NIGHT

NW
WINDS
15
KNOTS

The Marine Weather Forecast In Detail:
AMZ630 Forecast Issued: 401 AM EST Fri Jan 28 2022

GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON
Today...West Winds 5 To 15 Knots. Bay Waters A Moderate Chop.
Tonight...West Northwest Winds 15 To 20 Knots With Gusts To Around 30 Knots. Bay Waters Choppy. Slight Chance Of Showers.
Saturday...Northwest Winds 15 To 20 Knots With Gusts To Around 30 Knots. Bay Waters Choppy.
Saturday Night...North Northwest Winds Around 15 Knots With Gusts To Around 25 Knots. Bay Waters A Moderate Chop.
Sunday...North Winds 10 To 15 Knots. Bay Waters A Moderate Chop.
Sunday Night...North Winds Around 10 Knots. Bay Waters A Light Chop.
Monday...East Northeast Winds 10 To 15 Knots With Gusts To Around 20 Knots. Bay Waters A Moderate Chop.
Monday Night...East Winds 10 To 20 Knots With Gusts To Around 25 Knots. Bay Waters Choppy.
Tuesday...East Winds 15 To 20 Knots With Gusts To Around 25 Knots. Bay Waters Choppy.
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AMZ600: Synopsis for Jupiter Inlet to Ocean Reef FL out to 60 nm and for East Cape Sable to Bonita Beach FL out to 60 nm
401 AM EST Fri Jan 28 2022 .Synopsis... Marine conditions will continue to deteriorate ahead of a strong cold front, with increasing winds and seas. Behind the frontal passage, a strong high pressure system will settle into the area with Gale condtions and hazardous seas. A Small craft advisory is in effect for the Northern Atlantic waters, with a gale warning behind the frontal passage tonight through Saturday. Marine conditions gradually begin to improve Monday through the middle of next week. .Gulf Stream Hazards...Hazardous marine conditions develop with wave heights potentially exceeding 10 feet and frequent winds gusts to gale force possible this weekend.
The approximate location of the west wall of the Gulf Stream as of Jan 27, 2022 at 12 UTC...
- 7 nautical miles east of Fowey Rocks.
- 12 nautical miles east northeast of Port Everglades.
- 12 nautical miles east southeast of Lake Worth.
- 17 nautical miles east northeast of Jupiter Inlet.
Area Forecast Discussion
...UPDATED National Weather Service Miami FL
641am EST Fri Jan 28 2022

(Issued 545am EST Fri Jan 28 2022)

UPDATE... Patchy to areas of dense fog has worked into the east coast metro areas from the eastern interior areas of South Florida early this morning. The dense fog will continue through early this morning before dissipating later this morning due to heating of the day. Therefore, a Dense Fog Advisory has been issued for the eastern half of South Florida until 8am EST this morning.

(Issued 354am EST Fri Jan 28 2022)

SHORT TERM (Through Saturday)... Patchy fog and low status has developed across portions of South Florida this morning. Visibilities may be reduced to less than a mile in some locations. Fog and visibilities should improve after sunrise.

Latest surface analysis has a stalled frontal boundary across central Florida with a low pressure system developing to the east of the peninsula. Increasing pressure gradient will lead to increasing and backing winds from N to W as the day progresses. Rain chances throughout the day will remain low. High temperatures this afternoon will be in the mid to upper 70s.

A secondary cold front will be moving through the southeastern CONUS today and then down the Florida peninsula overnight. Scattered showers will be possible as the front moves through the region with highest POPs over the local waters. Wind will become breezy and gusty behind the frontal passage on Saturday. High pressure will build behind the front a dry and very cold air mass will settle over the region. Saturday maximum temperatures will be tepid at best, staying in the mid 50s to low 60s, well below normal for this time of year

Long Term - Saturday Night through Thursday Night
Say goodbye to the nice Florida temperatures, a least for a couple of days! The main story for this period occurs immediately as the sun sets on Saturday. A high pressure system will continue to drop southward over the Florida peninsula, helping to maintain CAA over the area overnight. The models remain on track for unseasonably low temperatures across South Florida. Some areas will see the coldest air in about a decade. Over the interior areas temperatures will drop to 30 degrees, with isolated areas in Glades County dipping into the high 20s for a short period of time. Closer to the coast, minimum temperatures could be in the 35-40 degree range.

Wind conditions overnight will remain breezy, with NW flow between 5- 10 mph over the full forecast area. This will mean that wind chill conditions could drop into the 20-30 degree range for the whole forecast region for sustained periods, with areas near Lake Okeechobee reaching low 20s wind chill temperatures.

Based on this forecast, Freeze and Wind Chill Watches have been issued for Saturday night/Sunday morning. A Freeze Watch is for the potential of minimum temperatures below 32 degrees in the next 48 hours. A Wind Chill Watch is for the potential of minimum apparent temperatures below 25 degrees and wind speeds greater or equal to 5 mph and could persist for 3 or more hours.

The high pressure system will dominate conditions from Sunday through Tuesday as it builds and settle over the peninsula. Maximum temperatures on Sunday will not warm up much, staying in the cool mid 50 to 60 degree range. As a result, minimum temperatures overnight could once again drop to the low to mid 30s across Glades and Hendry and mid 30s in portions of the interior. Coastal and metro areas could see low temperatures in the 40s.

Temperatures should start to moderate Monday as winds will start veering to a NE flow. Conditions should remain dry with POPs below 20 for the rest of the forecast period.

Generally VFR conditions are forecast to persist through the forecast period. Intermittent MVFR (Marginal Visual Flight Rules) CIGs are possible along most TAF sites, and even brief IFR CIGs cannot be ruled out (mainly near PBI/APF). Winds generally NW around 5 kt or light/vrb around most locations through earlyam hours, then NW around 10 kt by 13-15Z. Winds will increase later in forecast period as front approaches region, with ISO/SCT SHRA (rain showers) chances accompanying this feature as well.

Marine
Hazardous marine conditions will be possible today through Sunday morning associated with a cold front.

Winds will shift from N to W this morning ahead of the front today, with possible wind speeds reaching 15 kts over Atlantic and Gulf waters. Seas could reach up to 7 feet over the Palm Beach waters today. A Small craft advisory is in effect for the Northern Atlantic waters today.

Once the front passes overnight, winds should become NW increasing to 25-30 kts with gust to gale force over Atlantic and Gulf waters. These conditions will prevail for most of the day Saturday and overnight into Sunday morning, leading to seas up to 10 feet in areas of the Gulf and Atlantic waters. Given these conditions a Gale warning has been issued.

Conditions will gradually begin to improve on Sunday, first over the Gulf and then over the Atlantic. Winds will continue to decrease and turn NNE Sunday and Monday.

Fire Weather
Transport winds will increase today, allowing for dispersion values to increase to the fair to good range across the area. A strong cold front will pass through the region overnight with scattered showers possible. Behind the frontal passage high pressure will develop with much cooler and drier conditions to be present region-wide. Relative humidity values will likely drop below critical thresholds on Saturday and Sunday. However, wind and ERC thresholds are not expected to be met.

BEACHES... A high risk of rip currents for the Gulf beaches Saturday into Sunday morning.

There is an elevated risk of rip currents for the Atlantic and this weekend with the passage of a cold front overnight. Today the main concern will be for Palm Beach County beaches due to a northeasterly swell.

Surf heigheights of up to 6 feet could be possible along Palm Beach County beaches due to increasing northerly long-period swell moving down into the area Monday associated with the nor'eastern up north.

NOAA Miami FL Office: Watches - Warnings - Advisories
FL...Dense Fog Advisory until 8am EST this morning for FLZ067-068- 071>074-168-172>174.

Freeze Watch from late Saturday night through Sunday morning for FLZ063-066-067-070-071.

Wind Chill Watch from late Saturday night through Sunday morning for FLZ063-066-067.

High Rip Current Risk from late tonight through late Saturday night for FLZ069.

AM...Small Craft Advisory from 1pm Saturday to 4pm EST Sunday for AMZ650-651.

Gale Warning from 1am to 1pm EST Saturday for AMZ630-650-651.

Small Craft Advisory until 1am EST Saturday for AMZ650-670.

Small Craft Advisory from 7pm Saturday to 4pm EST Sunday for AMZ670-671.

Gale Warning from 1am to 7pm EST Saturday for AMZ670-671.

Small Craft Advisory from 10pm this evening to 1pm EST Saturday for AMZ610.

GM...Small Craft Advisory from 4pm to 10pm EST Saturday for GMZ656- 657-676.

Gale Warning from 10pm this evening to 4pm EST Saturday for GMZ656-657-676.