Thursday, September20, 2018 L-36.com


Marine Weather and Tides
Palm Beach, FL

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:07AMSunset 7:19PM Thursday September 20, 2018 5:22 AM EDT (09:22 UTC) Moonrise 3:52PMMoonset 2:06AM Illumination 79% 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- 305 Am Edt Thu Sep 20 2018
Today..Northeast winds 5 to 10 knots. Seas less than 2 feet. Period 9 seconds. Intracoastal waters a light chop. A slight chance of showers and Thunderstorms.
Tonight..East winds 5 to 10 knots. Seas around 2 feet. Period 3 seconds. Intracoastal waters a light chop. A slight chance of showers and Thunderstorms in the evening...then a chance of showers and Thunderstorms after midnight.
Friday..East northeast winds 5 to 10 knots. Seas around 2 feet. Period 4 seconds. Intracoastal waters a light chop. A chance of showers and Thunderstorms.
Friday night..East winds 5 to 10 knots. Seas 2 to 3 feet. Period 4 seconds increasing to 9 seconds after midnight. Intracoastal waters a light chop. A chance of showers and Thunderstorms.
Saturday through Monday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Intracoastal 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- 305 Am Edt Thu Sep 20 2018
Synopsis.. Light and variable winds this morning will become northeasterly this afternoon before veering easterly tonight. Speeds will average 5 knots or less early this morning, increasing to around 10 knots this afternoon. Seas will generally be 2 feet or less. Scattered showers and Thunderstorms are possible over the atlantic and gulf waters into tonight. Prevailing easterly winds are anticipated into this weekend with seas remaining around 2 feet or less. The greatest hazard to boaters through the weekend will be scattered Thunderstorms which could produce locally higher winds and waves in addition to lightning.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of sep 20, 2018 at 1200 utc... 9 nautical miles northeast of fowey rocks. 19 nautical miles east southeast of port everglades. 9 nautical miles east southeast of lake worth. 12 nautical miles east southeast of jupiter inlet. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Palm Beach, FL
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location: 26.71, -80.05     debug


Area Discussion for - Miami-South Florida, FL
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Fxus62 kmfl 200700
afdmfl
area forecast discussion
national weather service miami fl
300 am edt Thu sep 20 2018

Discussion
Today and tonight...

mid-level ridging will begin breaking down today as troughing
shifts equatorward from coastal georgia and the western atlantic
into northern florida. A diffuse frontal zone surface trough
associated with the upper wave will slowly advance south-
southwestward into northeast florida as its western extent hangs
up across the lower gulf coast states. Moisture pooling will occur
ahead of the frontal zone, with northeast steering flow
maintaining better moisture over southern florida today. The
20.00z mia sounding observed a precipitable water value of 2.09
inches, with upstream analysis suggesting a similar amount of deep
layer moisture should be present today. Given decreased
subsidence from the weakening ridge and cooling mid-level
temperatures, expect better shower and thunderstorm coverage for
today. The northeasterly flow suggests western interior areas will
likely see the most numerous activity this afternoon with
enhanced convergence from the colliding atlantic and gulf coast
sea breezes. Thereafter atlantic showers may affect the east coast
metro areas late tonight towards Friday morning. High
temperatures today will be in the upper 80s to the lower 90s.

Friday and Saturday...

a closed mid upper low will evolve over the bahamas Thursday night,
before moving west across southern florida on Friday and Friday
night. This will bring an increase in moisture and upper level
winds, along with cooling mid-level temperatures to around -10
celsius. Better shower and thunderstorm coverage is expected
during this period, with the potential for a few stronger
thunderstorms producing gusty winds and heavy rainfall. While the
best thunderstorm coverage should be focused towards the interior
and west coast given the easterly wind regime, this pattern
increases the possibility that atlantic coastal showers and storms
may impact the eastern metro areas during the morning to early
afternoon hours before convection pushes inland. Temperatures
should remain near to perhaps slightly below normal for this
period.

Sunday through Wednesday...

the upper low will shift into the central gulf of mexico on Sunday,
bringing southeast flow at the surface and aloft. A few ribbons of
vorticity will pass through south florida, suggesting better
thunderstorm coverage will continue into Sunday. While mid-level
temperatures will have warmed some, they remain cool enough for a
strong storm or two to be possible. Interior and west coast
locations once again stand to see the best thunderstorm coverage in
this flow regime.

Slightly drier air appears to filter in for early next week,
although the deterministic guidance still brings a few weak
perturbations through from time to time. Thunderstorm coverage may
decrease a bit from Sunday, but we're still looking for scattered
activity across the area with western interior areas favored for the
better coverage. Temperatures should remain near seasonal normals
for this period.

Marine
Light and variable winds this morning will become northeasterly
this afternoon before veering easterly tonight. Speeds will
average 5 knots or less early this morning, increasing to around
10 knots this afternoon. Seas will generally be 2 feet or less.

Scattered showers and thunderstorms are possible over the atlantic
and gulf waters into tonight. Prevailing easterly winds are
anticipated into this weekend with seas remaining around 2 feet or
less. The greatest hazard to boaters through the weekend will be
scattered thunderstorms which could produce locally higher winds
and waves in addition to lightning.

Aviation
MainlyVFR will prevail through around 15z with light and variable
winds. Possible periods of MVFR or ifr after 17z as sea breezes
develop and push inland. Most thunderstorm activity late in the
afternoon and this evening should remain further inland, but a
few showers could still move over the terminals through 02z.

Preliminary point temps pops
West palm beach 90 76 88 76 30 30 40 40
fort lauderdale 90 79 87 77 30 30 40 40
miami 90 76 87 76 40 30 40 40
naples 91 74 89 73 60 40 70 40

Mfl watches warnings advisories
Fl... None.

Am... None.

Gm... None.

Discussion... 34 spm
marine... 34 spm
aviation... 17 ar


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LKWF1 - 8722670 - Lake Worth, FL 7 mi35 min 81°F 85°F1015.7 hPa
PVGF1 - Port Everglades Channel, FL 43 mi41 min SW 1 G 2.9 81°F 1014.7 hPa73°F
PEGF1 43 mi47 min 83°F 1014.5 hPa
SPGF1 - Settlement Point, GBI 56 mi23 min S 4.1 G 5.1 83°F 1015.2 hPa (-0.9)

Wind History for Lake Worth Pier, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
West Palm Beach - Palm Beach International Airport, FL4 mi30 minN 010.00 miA Few Clouds79°F75°F90%1014.7 hPa

Wind History from PBI (wind in knots)
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Last 24hrCalmCalmNW3CalmS4S4E4SE11SE6E10E11E11SE11SE10SE7SE6SE7S7S4CalmS3CalmSW4Calm
1 day agoE3CalmCalmE6E6E5SE8E9E11SE12
G20
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2 days agoCalm3SE6E6E9SE9E9SE10E12SE13E8E10E10E12E9E9E7E5SE5SE4SE4SE3CalmN3

Tide / Current Tables for Palm Beach, Highway 704 bridge, Lake Worth, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Lake Worth Pier, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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 (5,6,7,8)
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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.