Marine Weather and Tides
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
|Sunrise 6:55AM||Sunset 7:57PM||Friday August 18, 2017 12:20 PM EDT (16:20 UTC)||Moonrise 2:35AM||Moonset 4:29PM||Illumination 14%|
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|AMZ610 Lake Okeechobee- 953 Am Edt Fri Aug 18 2017 |
Rest of today..Southeast winds 5 to 10 knots. Lake waters light chop. A chance of showers and Thunderstorms.
Tonight..Southeast winds around 5 knots. Lake waters smooth.
Saturday..East winds 5 to 10 knots. Lake waters a light chop. A chance of showers in the morning. A chance of Thunderstorms
Saturday night..East southeast winds 5 to 10 knots. Lake waters a light chop. A chance of showers and Thunderstorms.
Sunday..East winds 10 to 15 knots. Lake waters a moderate chop. Showers likely and a chance of Thunderstorms.
Sunday night..East winds 10 to 15 knots. Lake waters a moderate chop.
Monday..East winds 10 to 15 knots. Lake waters a moderate chop. A chance of showers and Thunderstorms.
Monday night..East northeast winds 10 to 15 knots. Lake waters a moderate chop. A slight chance of showers and Thunderstorms.
Tuesday..East winds around 10 knots. Lake waters a light chop. A chance of showers and Thunderstorms.
|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- 953 Am Edt Fri Aug 18 2017 |
Synopsis..Light to moderate east-southeast flow will continue over the local south florida waters today, before increasing late on Saturday as a tropical wave moves through the region. Cautionary conditions will be possible at times on Sunday and into early next week. Isolated to scattered showers and storms are expected over the local waters today and tonight, becoming more numerous on Saturday and through much of next week as the unsettled pattern continues.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of aug 17, 2017 at 1200 utc... 7 nautical miles east of fowey rocks. 11 nautical miles east of port everglades. 11 nautical miles east southeast of lake worth. 14 nautical miles east northeast of jupiter inlet. This data courtesy of the naval oceanographic office.
7 Day Forecast for Marine Location Near Moore Haven, FLHourly EDIT Help
Area Discussion for - Miami-South Florida, FL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 kmfl 181319 aaa|
area forecast discussion... Updated
national weather service miami fl
919 am edt Fri aug 18 2017
Strong thunderstorms possible in southwest florida today...
Drier air ahead of an approaching disturbance is showing up well
in this morning's mfl sounding, with precipitable water values of
1.46 inches. Still believe the current forecast trend of a drier
day along the east coast metro with warmer temperatures is on
track. Concern shifts to the west where the morning tbw and key
soundings may be more representative. The available surface
moisture continues to be present there with more possibly provided
by the onshore flow of the gulf sea breeze expected to develop
later this morning. Combine the moisture with plentiful
instability aided in part by cooler temperatures aloft and very
warm surface temperatures and you could see a day where any strong
convection along the interior and gulf coast could reach near
severe thresholds. The mfl sounding confirms model guidance hints
at strong dcape values exceeding 1000 j kg with key exceeding 1300
j kg of dcape! While coverage this afternoon may not be as
widespread as a typical summer day, the storms that develop will
have the potential to tap a healthy environment for strong
downbursts. Will add some enhanced wording to the gridded forecast
and zone forecasts for gusty winds and small hail that may be
possible with today's storms, along with similar updates to the
hazardous weather outlook. Updated zones will be sent shortly.
Prev discussion issued 757 am edt Fri aug 18 2017
a drier day is expected today, though apf and some of the inland
east coast terminals could see convection around. Sub-vfr is
possible around storms, which could prompt short-fused amendments.
Things should quiet down for the evening, though an approaching
wave could bring increasing rain chances beyond the TAF period.
Prev discussion... Issued 406 am edt Fri aug 18 2017
today and tonight: an interesting synoptic setup will be in place
across south florida today. Satellite shows a well defined upper
level low moving through the central NW bahamas and eastern cuba
this morning. Entrained within in it is a considerable amount of dry
air, a saharan airmass, that is suppressing most convection despite
the cold mid level temps of -8 to -9c.
Models are showing that this dry air will be the dominant feature,
holding storm chances generally in the 30-50% range despite an
otherwise favorable dynamic profile with moderately steep lapse
rates and a 40-50kt upper level jet as the low tracks west
through the fl straits later today. As with the past few days we
should see storms getting going around midday as both seabreezes
develop and move inland, focusing towards the western interior
later in the afternoon and evening. The presence of the
aforementioned upper level features may help enhance storms, with
a few more strong storms with gusty winds likely, especially with
With limited cloud cover and storm coverage, temperatures will rise
well above normal with highs climbing into the low to mid 90s. A
few upper 90s are likely for the interior portions of collier into
hendry counties. See the climate section below for today's record
This weekend: an unsettled and stormy weekend looks to be in store
for south florida. The upper level low and the coldest mid level
temperatures will move into the gulf Saturday morning, but this will
place a robust southerly upper level jet across the region with
speeds in the 40-50kt range. Moving into the region behind the upper
level feature will be a tropical wave (not any of the features
currently being monitored for development by nhc), with its deeper
tropical moisture spreading across the area Saturday afternoon
Models show it potentially taking most of Saturday morning for
the deeper moisture to advect across the region, which may give us
a period of morning sunshine to help destabilize the atmosphere.
With temperatures a little cooler aloft, a few more strong storms|
may be possible.
The wave axis looks to cross the region Saturday night, putting us
on the ascending side on on Sunday. With temperatures warming aloft
and the deep tropical airmass in place, activity on Sunday will
likely be more in the form of rain with embedded thunderstorms.
Moderate east-southeast flow, around 15 knots, may also help enhance
convergence and rainfall along the east coast, mainly early in the
day. Heavy rainfall will be a concern both days, most likely in the
Saturday afternoon to midday Sunday timeframe. Wpc has already
highlighted most of south florida for a slight risk of excessive
rainfall for 12z Sat through 12z Sunday.
Next week: model forecasts for next week suggest the wet and
unsettled pattern will continue through the week.
Upper level low and tropical wave will depart to the west on Monday
as a strong upper level ridge builds across north florida ga. Ridge
center will migrate westwards through midweek to our north, keeping
south florida under deep east-southeast flow. Monday looks to be the
driest day of the week with near normal storm coverage as dry air
and subsidence move in behind the low tropical wave.
The exact details of the weather Tuesday through Thursday will hinge
on the exact development and movement of the tropical disturbance
currently located about 1000 miles east of the leeward islands. As
of 2 am, NHC currently gives this feature a 70% change of developing
into a tropical cyclone in 2 days and 5 days respectively. It is
expected that this feature will continuing moving northwest and
potentially be in the bahamas and south florida as we head into mid
Regardless of development, at this point signs are pointing towards
another period of heavy rainfall across the region for at least
Tuesday and Wednesday. Which, especially depending on this weekend's
rainfall, may raise flooding concerns across the area. All residents
and visitors or south florida need to continue to monitor this
tropical disturbance through the weekend.
Marine... East-southeast winds will prevail for the weekend and
through the upcoming week across the local waters. The main concern
will be wind speeds, with several passing tropical waves
periodically bumping up speeds to cautionary levels. Right now,
expect overall speeds to increase to around 15 knots, with 15-20kts
possible with the first wave Saturday night into Sunday, and again
Monday night into Tuesday. Seas 2ft or less today, building to 3-
4ft, especially in the atlantic by Sunday.
Convection will remain more isolated over the open waters today,
favoring the the interior lake okeechobee this afternoon. Expect
scattered to numerous storms over all the waters for the weekend
with the first tropical wave.
The threat of rip current could increase this weekend along the
east coast beaches of south florida, due to the increase in
easterly wind flow.
Climate... High temperatures today may be within a few degrees of
Forecast highs record highs
miami 94 95 - 1995
fort lauderdale 94 98 - 1921
west palm beach 95 96 - 1949
naples 94 97 - 2001
Preliminary point temps pops
West palm beach 95 81 91 80 20 10 60 60
fort lauderdale 94 82 90 81 20 20 60 60
miami 94 81 90 80 20 20 70 60
naples 94 76 92 78 50 30 40 40
Mfl watches warnings advisories
Update... 02 rag
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|FMRF1 - 8725520 - Fort Myers, FL||43 mi||51 min||W 2.9 G 2.9||87°F||92°F||1017 hPa|
|LKWF1 - 8722670 - Lake Worth, FL||58 mi||51 min||E 5.1 G 5.1|
|NPSF1 - 8725110 - Naples, FL||61 mi||51 min||S 4.1 G 7||90°F||1017 hPa|
Wind History for Lake Worth Pier, FL(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Okeechobee County Airport, FL||33 mi||46 min||SSE 5||10.00 mi||Mostly Cloudy||88°F||77°F||70%||1017.3 hPa|
Wind History from OBE (wind in knots)
|1 day ago||Calm||NE||NW||NE||Calm||S||S||N||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm|
|2 days ago||SW||SW||S||Calm||E||SE||SW||SW||S||S||NE||SE||S||SW||Calm||S||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Fort Myers |
Click for Map
Fri -- 02:42 AM EDT 0.95 feet High Tide
Fri -- 03:39 AM EDT Moonrise
Fri -- 06:46 AM EDT 0.65 feet Low Tide
Fri -- 07:00 AM EDT Sunrise
Fri -- 01:23 PM EDT 1.68 feet High Tide
Fri -- 05:32 PM EDT Moonset
Fri -- 08:01 PM EDT Sunset
Fri -- 10:03 PM EDT 0.16 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Cape Coral Bridge |
Click for Map
Fri -- 02:56 AM EDT 0.70 feet High Tide
Fri -- 03:40 AM EDT Moonrise
Fri -- 06:39 AM EDT 0.65 feet Low Tide
Fri -- 07:01 AM EDT Sunrise
Fri -- 12:32 PM EDT 1.16 feet High Tide
Fri -- 05:32 PM EDT Moonset
Fri -- 08:01 PM EDT Sunset
Fri -- 09:19 PM EDT 0.02 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Southeast EDIT
Wind Forecast for Miami-South Florida, FL (12,3,4,5)(on/off)  Help
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.