Friday, December15, 2017 L-36.com


Marine Weather and Tides
Bokeelia, FL

Version 3.4
What's New / NOTES
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 7:09AMSunset 5:38PM Friday December 15, 2017 9:10 AM EST (14:10 UTC) Moonrise 4:45AMMoonset 4:06PM Illumination 8% Phase: Waning Crescent; Moon at 27 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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GMZ856 Coastal Waters From Bonita Beach To Englewood Fl Out 20 Nm- 350 Am Est Fri Dec 15 2017
Today..Southwest winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. A slight chance of sprinkles in the morning.
Tonight..West winds around 5 knots then becoming northeast around 10 knots toward morning. Seas 2 feet. Bay and inland waters a light chop.
Saturday..Northeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Saturday night..Northeast winds 5 to 10 knots then becoming east 10 to 15 knots in the late evening and overnight. Seas 2 feet. Bay and inland waters a moderate chop.
Sunday..East winds 10 to 15 knots diminishing to 5 to 10 knots in the afternoon. Seas 2 feet. Bay and inland waters a moderate chop.
Sunday night..East winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Monday..Southeast winds around 10 knots then becoming south around 5 knots late in the afternoon. Seas 2 feet. Bay and inland waters a light chop.
Monday night..Southwest winds around 5 knots then becoming east after midnight. Seas 2 feet or less. Bay and inland waters smooth.
Tuesday..Southeast winds around 5 knots then becoming southwest late in the afternoon. Seas 2 feet. Bay and inland waters smooth.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 350 Am Est Fri Dec 15 2017
Synopsis..High pressure over the florida straits extending east into the western atlantic will move east-southeast today as a weak cool front across the southeastern states sinks southeast toward north florida during the afternoon. Ahead of the front expect southwest to west winds around 10 knots with slight seas and a slight chance of a few showers over the waters today. Tonight winds will shift to the northeast and east as the front move south and stalls and washes out across the south-central gulf waters on Saturday as surface high pressure builds in over the southeastern states. During the latter part of the weekend and into early next week winds will veer to the southeast and south with a slight uptick in speeds as the pressure gradient tightens some between high pressure offshore the mid atlantic coast and weak areas of low pressure developing along a frontal boundary over the lower mississippi valley. Lighter southeast to south winds will return on Tuesday as the high sinks southeast and extends west across the central peninsula. Wind and seas should remain below 15 knots and 5 feet through the period with no headlines expected.

7 Day Forecast for Marine Location Near Bokeelia, FL
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location: 26.72, -82.26     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 150800
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
300 am est Fri dec 15 2017

Short term (today - Saturday)
A frontal boundary across the southeastern states early this
morning will begin to move south today as surface low
pressure develops off the mid atlantic cost in response to a
short wave trough moving east from the plains into the
lower ms tn valleys. Closer to home surface high pressure
across the florida straits extending east into the western
atlantic will shift east-southeast today as the front sinks
southeastward toward the florida panhandle and northern
peninsula during the afternoon. A southwest wind flow
between the departing high and ahead of the front will
support warmer temperatures across the region today. Limited
moisture (pw's 1 inch or less) and a strong subsidence
inversion should keep rain chances out of the forecast for
the most part except for a few showers over the gulf waters
and perhaps a few sprinkles over coastal areas this morning
(given radar returns presently being observed), so will
include a mention of in the zones, otherwise a mix of sun
and clouds and near seasonal level temperatures is expected
with afternoon highs topping out in the lower to mid 70s.

Tonight the front will sink south into the south-central
peninsula during the night where it will likely stall and
wash out through Saturday as surface high pressure building
in over the southeastern states bridges across it with a
northeast to easterly wind flow developing over the region.

Post-frontal drying in the wake of the front should support
pleasant dry weather through period.

Temperatures tonight and Saturday will remain near seasonal
levels but lows tonight will be slightly cooler than this
mornings with lows falling into the mid and upper 40s across
the nature coast, and lower to mid 50s central and south
with highs on Saturday reaching the upper 60s to around 70
north, and lower to mid 70s central and

Mid term long term (Saturday night - Thursday)
Mid level ridging centered over cuba and the bahamas
dominates fl and much of the gulf of mexico until about
midweek. Surface high pressure initially on the southeast
u.S. Coastal tracks east over the atlantic... Between 30 and
35 north latitude... While ridging back across fl to the
gulf. Through Tue - a stable warm and generally dry air mass
prevails as surface winds gradually shift from
northeasterly to south and southwesterly. Temperatures run
above normal with a slight increasing trend.

Early in the work week a robust short wave trough exits the
south-west deserts and tracks through the southern
plains... Reaching the gulf coastal states Wed and sliding
out over the atlantic thu. The short wave trough dampens out
mid to late week but will still be able to push the mid
level ridge south of the state and usher a cold front into
the area... Which weakens as it slides south. Surface high
pressure builds in behind the front. Starting Tue night
slight chance to low end chance pops move into the north
then spread into central and some of the southerly counties.

Precipitation will be confined to showers. Temperatures
continue above normal but with some cooling toward the end
of the period. Winds start off southwesterly but slowly turn
through the north then northeast to become east and
southeast.

Aviation
Vfr will prevail at all terminal sites during the next 24
hours. Scattered to broken cigs AOA 050 will continue to
affect the terminals through 21z this afternoon, with
additional mid high clouds AOA 100 streaming in from the
gulf. Some patchy shallow fog may affect klal and kpgd
terminals between 09-12z, but overall confidence in its
development is too low to include in the tafs at this time.

South to southwest winds in the 6 to 8 knot range will
become west at 8 to 10 knots after 21z. Northwest to north
winds around 5 knots are expected after 02z tonight.

Marine
High pressure over the florida straits and extending east
into the western atlantic will shift east-southeast today
as a weak cool front sinks south into the florida panhandle
and northern peninsula during the afternoon with a light
southwest to west wind flow and slight seas continuing over
the gulf waters. Tonight the front will sink south into the
south-central waters overnight where it will likely stall
and wash out through Saturday as surface high pressure
building in over the southeastern states bridges across it
with a post frontal northeast to easterly wind flow
developing over the waters through the first half of the
upcoming weekend.

On Sunday and continuing into Monday winds will veer to the
southeast and south with a slight uptick in speeds expected
as the gradient tightens a bit between high pressure
offshore the mid atlantic coast and weak areas of low
pressure developing along a frontal boundary over the lower
mississippi valley. A lighter southeast to southerly wind
flow will return on Tuesday as the surface high sinks
southeastward and extends back to the west across the
central peninsula. Similar to yesterday wind and seas should
remain below 15 knots and 5 feet through the period with no
headlines anticipated at this time.

Fire weather
Some drier air will move into the region on Saturday in the
wake of the front with a few hours of marginally low
humidity values below 35 percent possible over inland
sections of levy county during the afternoon. With light
winds and erc values remaining low, do no expect any red
flag conditions. During the upcoming weekend and into early
next week low level moisture will recover across the area as
winds become northeast to east which will keep humidity
values above critical levels with no other fire weather
issues expected at this time.

Preliminary point temps pops
Tpa 75 57 72 60 10 10 0 0
fmy 76 57 78 61 10 10 0 0
gif 75 53 74 57 10 0 0 0
srq 75 57 75 58 10 10 0 0
bkv 75 50 72 52 10 10 0 0
spg 74 57 72 61 10 10 0 0

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Short term aviation marine fire weather... 57 mcmichael
mid term long term decision support... 09 rude


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FMRF1 - 8725520 - Fort Myers, FL 21 mi41 min SSE 2.9 G 5.1 65°F 65°F1019 hPa
VENF1 - Venice, FL 26 mi71 min SE 7 G 8.9 63°F 66°F1018.6 hPa (+1.0)60°F
NPSF1 - 8725110 - Naples, FL 47 mi41 min SE 5.1 G 7 67°F1019.2 hPa
42013 - C10 - Navy-2 47 mi41 min S 9.7 G 12 71°F

Wind History for Naples, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Punta Gorda, Charlotte County Airport, FL20 mi18 minS 610.00 miPartly Cloudy65°F57°F78%1020 hPa
Fort Myers, Page Field, FL23 mi18 minS 610.00 miPartly Cloudy65°F55°F73%1019.6 hPa

Wind History from PGD (wind in knots)
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Last 24hrS9S7SW8SW9SW9SW10SW8SW8SW7SW5S5S5S7CalmSE6S5S4S5SE5S4SE4SE3SE4S6
1 day agoNE11N6N8NW9NW6W5NW5NW4W6NW7NW6NW4CalmE3CalmCalmSE3SE3SE4SE3SE5SE4SE6S8
2 days agoS6W10W12W9W16
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NW12W6W7W7NW6N10N7N8NW9N7N6N7NE5N5N7N6NE8

Tide / Current Tables for Port Boca Grande, Charlotte Harbor, Florida
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Port Boca Grande
Click for Map
Fri -- 04:44 AM EST     Moonrise
Fri -- 04:47 AM EST     -0.14 feet Low Tide
Fri -- 07:10 AM EST     Sunrise
Fri -- 12:33 PM EST     0.99 feet High Tide
Fri -- 03:36 PM EST     0.76 feet Low Tide
Fri -- 04:06 PM EST     Moonset
Fri -- 05:38 PM EST     Sunset
Fri -- 10:21 PM EST     1.58 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.20.90.50.1-0.1-0.1-0.10.10.30.60.80.9110.90.80.80.811.21.31.51.61.5

Tide / Current Tables for Boca Grande Pass, Charlotte Harbor, Florida Current
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Boca Grande Pass
Click for Map
Fri -- 03:18 AM EST     -2.66 knots Max Ebb
Fri -- 04:44 AM EST     Moonrise
Fri -- 06:56 AM EST     0.00 knots Slack
Fri -- 07:10 AM EST     Sunrise
Fri -- 10:25 AM EST     2.34 knots Max Flood
Fri -- 02:28 PM EST     -0.00 knots Slack
Fri -- 03:51 PM EST     -0.43 knots Max Ebb
Fri -- 04:06 PM EST     Moonset
Fri -- 05:15 PM EST     0.00 knots Slack
Fri -- 05:38 PM EST     Sunset
Fri -- 08:49 PM EST     1.88 knots Max Flood
Fri -- 11:52 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-1.5-2.2-2.6-2.5-2-10.11.11.92.32.31.81.10.3-0.3-0.4-0.10.51.21.71.91.60.8

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Tampa Bay, FL (9,2,3,4)
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Ground Weather Radar Station Tampa Bay Area, FL
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weather_mapweather_map weather_map

Gulf Stream Current


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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.