Marine Weather and Tides
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.
|Sunrise 7:29AM||Sunset 7:38PM||Monday March 19, 2018 11:51 PM EDT (03:51 UTC)||Moonrise 8:02AM||Moonset 8:48PM||Illumination 11%|
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|GMZ657 Coastal Waters From Chokoloskee To Bonita Beach Fl Out 20 Nm- Coastal Waters From East Cape Sable To Chokoloskee Fl Out 20 Nm- 946 Pm Edt Mon Mar 19 2018 |
Rest of tonight..South winds 5 to 10 knots. Seas less than 2 feet. Period 3 seconds. Bay and inland waters a light chop.
Tuesday..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Period 3 seconds. Bay and inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms in the afternoon.
Tuesday night..NEarshore, west southwest winds 10 to 15 knots in the evening. Winds west northwest after midnight. Offshore, west southwest winds 15 to 20 knots in the evening. Seas 2 to 3 feet nearshore and 3 to 5 feet with occasional to 6 feet offshore. Period 6 seconds. Bay and inland waters choppy in exposed areas. A chance of showers in the evening. A slight chance of showers after midnight.
Wednesday..Northwest winds 15 to 20 knots with gusts to around 30 knots nearshore and north northwest 15 to 25 knots offshore. Seas 2 to 4 feet with occasional seas to 5 feet nearshore and 4 to 6 feet with occasional to 8 feet offshore. Period 6 seconds. Bay and inland waters a moderate chop.
Wednesday night..North winds 15 to 20 knots with gusts to around 30 knots. NEarshore, seas 2 to 4 feet with occasional seas to 5 feet subsiding to around 2 feet after midnight. Offshore, seas 4 to 6 feet with occasional seas to 8 feet. Bay and inland waters a moderate chop.
Thursday..North northwest winds 10 to 15 knots. Seas around 2 feet nearshore and 3 to 5 feet with occasional to 6 feet offshore. Bay and inland waters a light chop.
Thursday night and Friday..North northeast winds 10 to 15 knots. Seas around 2 feet nearshore and 2 to 3 feet with occasional to 5 feet offshore. Bay and inland waters a light chop.
Friday night..Northeast winds 5 to 10 knots. Seas around 2 feet. Bay and inland waters a light chop.
Saturday..East winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop.
|GMZ600 Synopsis For Pascagoula Ms To Okaloosa Walton County Line Fl Out 60 Nm Including Major Area Bays And Sounds- 1010 Pm Cdt Mon Mar 19 2018 |
Synopsis..A moderate to strong southwest to westerly flow will continue tonight ahead of a cold front approaching from the northwest. Areas of fog, likely dense at times, will continue through midnight then begin to lift as winds shift more to the west late tonight and early Tuesday morning. A few showers or Thunderstorms will be possible ahead and along the front with an isolated strong Thunderstorm still possible through late this evening. A strong northwest flow is expected in the wake of the front on Tuesday and will continue through late Wednesday morning. Frequent gusts to gale force will also be likely in the wake of the front, occurring mostly over the open gulf waters out to 60 nm Tuesday through Tuesday night.
7 Day Forecast for Marine Location Near Plantation Island, FLHourly EDIT Help
Area Discussion for - Miami-South Florida, FL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 kmfl 200040|
area forecast discussion
national weather service miami fl
840 pm edt Mon mar 19 2018
Light southwest winds will continue overnight. Patchy fog may
develop over the gulf coast and interior, but kapf would likely
be the only TAF site affected, where vis could briefly drop below
5sm. Aft 20 1400z, southwest winds will begin to increase over the
peninsula, generally around 10 kt, increasing to 15 kt around
20 1800z. A frontal passage Tuesday evening may bring a few
showers to the region, but not confident enough to include in the
latest TAF package.
Prev discussion issued 415 pm edt Mon mar 19 2018
Tonight through midday Tuesday:
main issue tonight will be potential for patchy fog and low clouds
developing after midnight as the atmosphere continues to moisten in
southwesterly flow ahead of an approaching shortwave trough and
front. Highest chances for fog will again be across the interior and
west coast region, but can't be ruled out into the western part of
the east coast metro areas around sunrise.
After morning low clouds and fog dissipate, moderate southwest winds
and mostly sunny skies in the pre-frontal thermal ridge will be
favorable for relatively hot temperatures for march along the east
coast, with highs well into the 80s and even approaching 90 in a few
spots. On the gulf side, surface winds blowing over the relatively
mild shelf waters and potential morning low clouds fog should keep
high temperatures closer to 80 in that region.
Tuesday afternoon and overnight:
models have come into better agreement that a shortwave trough in
the mid troposphere will swing across northern florida late
Wednesday afternoon into the evening. There is an enhanced risk of
severe thunderstorms from the storm prediction center centered over
the northern half of the peninsula where forcing associated with the
shortwave trough and front will be strongest.
Well ahead of the front during the afternoon hours over south
florida, the atmosphere will be fairly unstable with modestly strong
wind profiles, but with no organized forcing mechanism to initiate
convection. This is why models are dry over our area Tuesday despite
the instability, so the forecast during the day will be dry. The
exception will be late in the afternoon and early evening over the
far northwest lake region where strong convection initiating to the
northwest might approach. SPC has delineated a marginal risk for
severe thunderstorms over that region. The primary threat will be
gusty winds due to the 40-50 knot low level jet over the area.
As the front moves further into south florida during the later
evening and overnight hours, the shortwave trough will be departing
the region, bringing increasing subsidence and tending to suppress
deep moist convection with time. The weakening surface convergence
along the front may be just enough for an isolated gusty shower to
persist as the front reaches southeast sections overnight, but
coverage is expected to be very low.
Wednesday and beyond:
a dry, mild air mass will overspread the region behind the front.
With dewpoints falling into the 30s most areas, there will be a|
fairly large diurnal temperature range Thursday and Friday with
cool lows in the mid 40s-mid 50s and highs in the 70s under sunny
skies. Winds veer around to easterly over the weekend as the
center of the high pressure moves into the western atlantic,
bringing a gradual warm up and slightly more humid air but still
little to no rain chance into early next week.
Southwest winds will steadily increase over the local waters Tuesday
ahead of an approaching front. Small craft advisories may be
required in later forecasts starting Tuesday afternoon. Behind
the front Wednesday, winds veer around to west and then northwest,
remaining in the 15-20 knot range. A 1-2 foot swell combined with
wind waves may bring 7-8 foot wave heights, locally higher, to
the local gulf waters late Tuesday night into Wednesday, with a
similar setup in the atlantic waters on Thursday. Conditions
steadily improve Friday into the weekend as high pressure moves
over the region.
There will be at least a moderate risk of rip currents at the gulf
beaches Tuesday with moderately strong onshore winds, and the
enhanced risk may continue Wednesday into Thursday with moderate
northwest winds and a 1-2 foot swell. An enhanced risk of rip
currents is also possible Thursday night into the weekend at the
atlantic beaches due to a 1-3 foot swell affecting the coast.
Expect very good to excellent dispersion Tuesday midday-afternoon
with moderately strong southwest winds ahead of a cold front. A
very dry air mass will move into the region behind the cold front
Wednesday. Minimum rh Wednesday afternoon will be in the 30-35
range over parts of the interior, and in the 20-30 percent range
over most of the region Thursday and Friday afternoons, before
increasing to 35 percent or higher this weekend. At this time,
winds above 15 mph are not expected to coincide with the low rh
periods, so headlines are not required.
Near record highs are possible along the east coast Tuesday.
City Tuesday forecast record high (years)
miami 88 89 (2008)
ft. Lauderdale 87 91 (1965)
w. Palm beach 88 88 (1988 and previous years)
Preliminary point temps pops
West palm beach 68 88 62 78 10 10 30 0
fort lauderdale 70 87 65 79 0 0 20 0
miami 70 88 65 80 0 0 20 0
naples 69 80 63 73 10 40 30 0
Mfl watches warnings advisories
Discussion... 22 ks
marine... 22 ks
aviation... 27 jt
beach forecast... 22 ks
fire weather... 22 ks climate... 22 ks
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|
|RKXF1 - Rookery Bay Reserve, FL||22 mi||67 min||69°F||69°F|
|LMRF1 - Lostmans River, FL||23 mi||112 min||77°F|
|WIWF1 - Willy Willy, FL||26 mi||112 min||79°F|
|NPSF1 - 8725110 - Naples, FL||30 mi||52 min||75°F||1010.5 hPa (+0.5)|
|BDVF1 - Broad River, FL||33 mi||112 min||76°F|
|HREF1||33 mi||112 min||75°F|
|CANF1 - Cane Patch, FL||37 mi||172 min||74°F|
|SREF1||37 mi||112 min||75°F|
|GBIF1 - Gunboat Island, FL||37 mi||112 min||75°F|
|TPEF1 - Tarpon Bay East, FL||37 mi||172 min||78°F|
|CWAF1||42 mi||172 min||76°F|
|NRRF1||43 mi||112 min||79°F|
|LRIF1||46 mi||112 min||80°F|
|WWEF1||48 mi||172 min||78°F|
Wind History for Naples, FL(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Naples, Naples Municipal Airport, FL||29 mi||59 min||S 7||5.00 mi||Fair with Haze||74°F||73°F||97%||1010.6 hPa|
Wind History from APF (wind in knots)
|1 day ago||Calm||Calm||SE||Calm||SE||Calm||Calm||Calm||Calm||Calm||Calm||SW||W||W||NW||NW||W||W||W||W||W||W||W||W|
|2 days ago||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||NE||E||Calm||SW||SW||SW||SW||W||SW||SW||W||Calm||W||W |
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Mon -- 04:19 AM EDT 3.18 feet High Tide
Mon -- 07:30 AM EDT Sunrise
Mon -- 09:02 AM EDT Moonrise
Mon -- 11:09 AM EDT 0.03 feet Low Tide
Mon -- 04:19 PM EDT 3.37 feet High Tide
Mon -- 07:36 PM EDT Sunset
Mon -- 09:48 PM EDT Moonset
Mon -- 11:38 PM EDT -0.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
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|Round Key |
Click for Map
Mon -- 02:55 AM EDT 3.91 feet High Tide
Mon -- 07:31 AM EDT Sunrise
Mon -- 09:02 AM EDT Moonrise
Mon -- 09:32 AM EDT 0.15 feet Low Tide
Mon -- 03:04 PM EDT 4.00 feet High Tide
Mon -- 07:36 PM EDT Sunset
Mon -- 09:49 PM EDT Moonset
Mon -- 09:59 PM EDT -0.12 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES Local Image of Southeast EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Miami-South Florida, FL (23,6,7,8)(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.