Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Gulf Stream, FL

Version 3.4
What's New / NOTES
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 6:45AMSunset 7:50PM Wednesday April 25, 2018 2:42 AM EDT (06:42 UTC) Moonrise 2:50PMMoonset 3:05AM Illumination 75% Phase: Waxing Gibbous; Moon at 10 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ650 Coastal Waters From Jupiter Inlet To Deerfield Beach Fl Out 20 Nm- Waters From Jupiter Inlet To Deerfield Beach Fl From 20 To 60 Nm- 935 Pm Edt Tue Apr 24 2018
.small craft should exercise caution...
Rest of tonight..West northwest winds 10 to 15 knots along the coast to west 15 to 20 knots in the gulf stream. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a light chop. Showers likely and a chance of Thunderstorms late in the evening...then a chance of showers and a slight chance of Thunderstorms after midnight.
Wednesday..Along the coast, west northwest winds 5 to 10 knots becoming west southwest in the afternoon. In the gulf stream, west northwest winds 10 to 15 knots becoming southwest 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a light chop.
Wednesday night..South winds 5 to 10 knots becoming west northwest after midnight. Seas around 2 feet. Period 5 seconds. Intracoastal waters a light chop.
Thursday..Along the coast, west winds 5 knots becoming south in the afternoon. In the gulf stream, west winds 5 to 10 knots becoming south southwest in the afternoon. Seas around 2 feet. Period 4 seconds. Intracoastal waters a light chop.
Thursday night..West southwest winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop.
Friday..South southwest winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop. A chance of showers.
Friday night..Along the coast, south southwest winds 5 to 10 knots becoming west after midnight. In the gulf stream, west southwest winds 10 to 15 knots. Seas around 2 feet. Intracoastal waters a light chop. A chance of showers and Thunderstorms.
Saturday..West northwest winds 5 to 10 knots becoming north in the evening. Seas around 2 feet. Intracoastal waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Saturday night..Northeast winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop. A slight chance of showers.
Sunday..East northeast winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop.
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- 935 Pm Edt Tue Apr 24 2018
Synopsis.. Southwesterly wind averaging 15 knots will transition to west- northwest overnight as a cold front moves through. Ahead of this cold front, Thunderstorms are expected over lake okeechobee and atlantic waters off broward and palm beach counties, with Thunderstorms also possible across the remainder of the waters. Some Thunderstorms may be strong and produce waterspouts.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of apr 21, 2018 at 1200 utc... 12 nautical miles east southeast of fowey rocks. 10 nautical miles east of port everglades. 8 nautical miles east southeast of lake worth. 11 nautical miles east of jupiter inlet. This data courtesy of the naval oceanographic office.

7 Day Forecast for Marine Location Near Gulf Stream, FL
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location: 26.46, -79.95     debug


Area Discussion for - Miami-South Florida, FL
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Fxus62 kmfl 250535 aac
afdmfl
area forecast discussion... Updated
national weather service miami fl
135 am edt Wed apr 25 2018

Update
The winds will be mainly westerly today across the TAF sites with
speeds of 5 to 10 knots. The only exception is at kfll where it
could go southerly after 21z today, due to a weak east coast sea
breeze developing late in the day. The ceiling and vis will remain
inVFR conditions along with dry weather at all of the TAF sites.

Aviation... 54 bnb

Prev discussion issued 816 pm edt Tue apr 24 2018
aviation...

a cold front will continue to gradually move across south florida
tonight. This front has been bringing shra and tsra to mainly
palm beach county. Models show maybe a few shra may affect other
areas overnight, but there is too much uncertainty to include at
this time. Behind the front, clearing skies, and a wind shift to
the nw.

Prev discussion... Issued 756 pm edt Tue apr 24 2018
update...

latest radar imagery shows most of the shower activity from
earlier this afternoon continuing to affect portion of palm
beach county and adjacent coastal waters. Frontal boundary is
slowly moving south across south florida, with most of the
coverage concentrated over palm beach county. Short term model
guidance suggests additional activity will be shifted east and
remain concentrated over the atlantic waters tonight. Expect a
northwest flow behind this boundary with drier air moving into the
area limiting any additional precipitation through Thursday.

Small changes were made to the pops for tonight to reflect less
chances inland as most of the activity remains offshore.

Prev discussion... Issued 406 pm edt Tue apr 24 2018
discussion...

upper level low traveling east northeast across the tn and oh
valleys will meander into the west atlantic waters tonight into
Wednesday. The frontal boundary associated with this broad upper
low stretches from gulf waters through palm beach and it is
currently enhancing scattered showers and thunderstorms across the
lake region and most of palm beach county. The combination of the
front and the abundant moisture ahead of it will provide
favorable conditions for the thunderstorms to continue over most
of the northeast and coastal areas through this evening, with some
of the storms could become strong. We are expected to remain in
the moist sector through this afternoon, with values well above
normal. 80-90kt upper level jet and vort MAX are expected to dip
far enough south to give upper level support to any development.

Potential for weak atlantic seabreeze development will also aide
surface convergence. Northeast parts of south florida could have
near-severe wind gusts and some hail, isolated in nature. Will
also have to monitor for a potential atlantic breeze development,
which would lead to backed winds, much enhanced shear and
potential for an isolated tornado. Lightning and heavy rain remain
the biggest threats, though strong wind gusts, hail, and
potential for waterspouts landspouts can't be ruled out given the
environment.

Tonight: upper level low weakens and merge into the larger trough
overnight, bringing its accompanying surface low up the east
coast. As the main axis of the upper trough moves east of the
state, it should drive the surface front south of the area,
leaving only a few lingering showers across the local atlantic
waters by daybreak Wednesday
Wednesday through the weekend: dry weather pattern filters in
behind the front for midweek. Highs temperatures will be in the
mid to upper 80s. Lower humidities will allow cooler overnight
lows ranging from the upper 50s over the interior and mid to upper
60s along the coasts through the end of the week. Larger east
coast trough is expected to continue to dominate the pattern into
the extended. Several shortwaves are expected to rotate around its
base through the northern gulf coast deep south, potentially
driving the development of another weak surface low and some
manner of front that slides down the fl peninsula this weekend.

Over south florida, we look to see a gradual increase in moisture
from south to north as the old frontal boundary drifts back into
the region. Expect the threat for showers to return to the
forecast, potentially lingering through most of the weekend
depending on the exact evolution of the features further to our
north.

Marine... Moderate south-southwest winds today as a frontal boundary
makes its way through the region, veering west-northwest by daybreak
behind the boundary. Expect west-northwest winds around 10kts to
linger into the upcoming weekend. Speeds will be light enough to
generally allow the atlantic seabreeze to develop near the coast
each afternoon, bringing winds out of the south-southeast.

Preliminary point temps pops
West palm beach 65 84 67 83 0 0 0 30
fort lauderdale 68 83 70 82 0 0 0 30
miami 67 85 69 84 0 0 10 30
naples 65 82 67 82 0 0 0 20

Mfl watches warnings advisories
Fl... None.

Am... None.

Gm... None.

Update... 67 mt
discussion... 67 mt
marine... 67 mt
aviation... 54 bnb


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LKWF1 - 8722670 - Lake Worth, FL 11 mi42 min WNW 5.1 G 8.9 71°F 78°F1015.2 hPa (-0.4)71°F
PVGF1 - Port Everglades Channel, FL 27 mi42 min WNW 8.9 G 11 76°F 1014.1 hPa (-0.5)68°F
PEGF1 27 mi42 min 76°F 1013.8 hPa (-0.4)
VAKF1 - 8723214 - Virginia Key, FL 52 mi42 min W 5.1 G 7 77°F 82°F1013.6 hPa (-0.6)

Wind History for Lake Worth Pier, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boca Raton, Boca Raton Airport, FL10 mi3.9 hrsN 010.00 miMostly Cloudy72°F69°F94%1014.9 hPa
Pompano Beach, Pompano Beach Airpark, FL17 mi49 minNW 1210.00 miOvercast74°F64°F71%1014.5 hPa
West Palm Beach - Palm Beach International Airport, FL18 mi49 minWNW 710.00 miPartly Cloudy68°F64°F90%1014.2 hPa
Fort Lauderdale, Fort Lauderdale Executive Airport, FL21 mi49 minWNW 810.00 miOvercast74°F63°F69%1014.7 hPa

Wind History from BCT (wind in knots)
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Last 24hr--------------W6SW6W9W11W9
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--NE25--E6SE8--N8Calm
1 day ago--------------SE5SE7SE7
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2 days ago--------------E5SE10E13----E12CalmSE10SE12
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SE12SE12SE10SE10--SE9SE6

Tide / Current Tables for Delray Beach, ICWW, Florida
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Delray Beach
Click for Map
Wed -- 01:08 AM EDT     -0.00 feet Low Tide
Wed -- 04:05 AM EDT     Moonset
Wed -- 06:47 AM EDT     Sunrise
Wed -- 07:06 AM EDT     2.62 feet High Tide
Wed -- 01:41 PM EDT     0.02 feet Low Tide
Wed -- 03:50 PM EDT     Moonrise
Wed -- 07:35 PM EDT     2.64 feet High Tide
Wed -- 07:49 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.200.20.61.21.92.42.62.52.11.610.40.100.40.91.62.12.62.62.41.81.2

Tide / Current Tables for South Delray Beach, ICWW, Florida
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South Delray Beach
Click for Map
Wed -- 01:02 AM EDT     0.08 feet Low Tide
Wed -- 04:05 AM EDT     Moonset
Wed -- 06:47 AM EDT     Sunrise
Wed -- 07:02 AM EDT     2.64 feet High Tide
Wed -- 01:36 PM EDT     0.09 feet Low Tide
Wed -- 03:50 PM EDT     Moonrise
Wed -- 07:31 PM EDT     2.66 feet High Tide
Wed -- 07:49 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.10.20.71.322.52.62.52.11.610.50.10.10.411.72.32.62.62.31.81.2

Weather Map and Satellite Images
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wmap_A
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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Miami-South Florida, FL (2,6,7,8)
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Ground Weather Radar Station Miami, FL
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Disclaimer:
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.