Monday, December11, 2017 L-36.com


Marine Weather and Tides
Charlotte Harbor, 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 7:06AMSunset 5:37PM Monday December 11, 2017 5:28 PM EST (22:28 UTC) Moonrise 1:10AMMoonset 1:40PM Illumination 40% Phase: Third Quarter Moon; Moon at 23 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- 306 Pm Est Mon Dec 11 2017
Tonight..North winds around 10 knots then becoming northwest around 5 knots toward morning. Seas 2 feet. Bay and inland waters a light chop.
Tuesday..West winds 5 to 10 knots increasing to around 20 knots. Seas 3 to 5 feet. Bay and inland waters choppy.
Tuesday night..Northwest winds around 20 knots then becoming north 10 to 15 knots after midnight. Seas 4 to 6 feet. Bay and inland waters choppy.
Wednesday..North winds around 15 knots diminishing to 5 to 10 knots in the afternoon. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Wednesday night..North winds around 5 knots then becoming east around 5 knots toward morning. Seas 2 to 3 feet. Bay and inland waters smooth.
Thursday..South winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Thursday night..South winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Friday..Southwest winds 5 to 10 knots then becoming west around 15 knots in the late morning and afternoon. Seas 3 to 5 feet. Bay and inland waters a moderate chop. A chance of showers.
Friday night..North winds around 15 knots. Seas 4 to 6 feet. Bay and inland waters a moderate chop. A slight chance of showers.
Saturday..Northeast winds around 15 knots diminishing to 5 to 10 knots late in the afternoon. Seas 3 to 5 feet. Bay and inland waters a moderate chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 306 Pm Est Mon Dec 11 2017
Synopsis..High pressure will continue to hold in place across the waters tonight. A cold front will then move through the area later Tuesday and bring an increase in wind speeds, with winds around advisory levels through Tuesday night before subsiding by Wednesday morning. High pressure returns for the end of the week, with another front pushing into the area Friday and winds and seas again increasing to near advisory levels.

7 Day Forecast for Marine Location Near Charlotte Harbor, FL
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location: 26.94, -82.06     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 111957
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
257 pm est Mon dec 11 2017

Short term (tonight-Tuesday)
High pressure will continue to ridge across the area
tonight with mostly clear skies and winds becoming light and
variable. Temperatures will fall into the 40s for lows,
except lower to mid 50s along the coast. Have a small area
of patchy frost in place across highlands county, but
otherwise temperatures should be too warm to allow for frost
formation. A front will then move through the area Tuesday
afternoon, with winds increasing from the west for the late
morning and afternoon, and skies becoming mostly cloudy.

There may be a stray shower over the central or southern
coastal waters in the afternoon, but very limited moisture
should restrict any shower development over land. Highs are
expected to reach into the lower to mid 70s.

Long term (Tuesday night-Monday)
Broad mid upper level troughing will remain over the eastern
half of the CONUS through the week with a more zonal flow
over the area during the weekend before the next deepening
trough slides across the eastern states early next week. At
the surface, a cold front will move away from the region
Tuesday night with breezy and cooler air moving in through
Wednesday as another area of high pressure builds in from
the west. This high moves across the region Thursday and out
into the atlantic ocean Friday as the next cold front
approaches from the northwest Thursday night and Friday with
a quick moderating trend. The global models continuing to
show some timing differences with the ECMWF still slower by
about 6 to 12 hours and a little wetter than the gfs. For
now have gone with slight chance to chance pops for Thursday
night and chance to likely pops on Friday. High pressure
will build in from the west Friday night and move across the
florida peninsula Saturday night bringing fair dry weather
and seasonably cool temperatures. Temperatures will quickly
moderate Sunday and Monday as the high moves well out into
the atlantic ocean and the next cold front approaches from
the northwest.

Aviation
Vfr conditions are expected through the period, with light
north winds becoming NW later this afternoon. Winds then
become light and variable overnight with mostly clear skies,
then increase and become gusty from the W SW asVFR ceilings
move in by the end of the period.

Marine
Light winds and seas through tonight with high pressure in
place. Winds and seas will then increase on Tuesday as the
pressure gradient increases with the frontal passage. Sca
conditions are expected to start developing later Tuesday
morning early afternoon, so will hold off for now with an
sca. Winds will then subside early Wednesday morning as high
pressure builds over the state. The next cold front will
then move into the area on Friday, with winds and seas again
increasing to SCA levels. High pressure will then be in
place over the area through the rest of the period.

Fire weather
Will have excellent dispersions on Tuesday afternoon with
strong and gusty winds in place, but rh values will be above
critical levels so no warning are needed. Winds will subside
for Wednesday afternoon, but rh values will be below
critical levels for a few hours. Erc values should remain
below thresholds for any warnings, but will monitor. The
rest of the period will have rhs remain above critical
levels.

Preliminary point temps pops
Tpa 51 73 46 62 0 10 0 0
fmy 48 75 48 66 0 10 0 0
gif 45 72 40 63 0 0 0 0
srq 48 73 47 63 0 10 0 0
bkv 41 73 37 61 0 10 0 0
spg 54 72 48 62 0 10 0 0

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Short term aviation marine fire weather... 24 hubbard
mid term long term decision support... 69 close


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VENF1 - Venice, FL 23 mi28 min NW 11 G 13 60°F 69°F1022.3 hPa (-0.6)43°F
FMRF1 - 8725520 - Fort Myers, FL 23 mi40 min WNW 5.1 G 8 65°F 67°F1021.2 hPa
42013 - C10 - Navy-2 49 mi58 min N 5.8 G 7.8 72°F

Wind History for Naples, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Punta Gorda, Charlotte County Airport, FL4 mi35 minNNW 510.00 miFair64°F36°F35%1022.1 hPa

Wind History from PGD (wind in knots)
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Last 24hrN7N4N9N8N6N3CalmCalmN4CalmCalmCalmNE3NE3E3NE7NE9N8
G16
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1 day agoN9N9N11N11N8N5N5NE4NE5NE6N5N5NE7NE8N8NE10N12NE9
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2 days agoS11S12S8S11S12SW12SW16
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N15N11N7N7N8NW8NW13NW21
G26
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Tide / Current Tables for Punta Gorda, Charlotte Harbor, Florida
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Punta Gorda
Click for Map
Mon -- 01:09 AM EST     Moonrise
Mon -- 04:11 AM EST     0.65 feet Low Tide
Mon -- 07:07 AM EST     Sunrise
Mon -- 09:26 AM EST     1.17 feet High Tide
Mon -- 01:39 PM EST     Moonset
Mon -- 04:09 PM EST     0.37 feet Low Tide
Mon -- 05:35 PM EST     Sunset
Mon -- 10:38 PM EST     1.45 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.10.90.70.70.70.80.91.11.21.21.110.80.60.50.40.40.60.81.11.31.41.4

Tide / Current Tables for Boca Grande Pass, Charlotte Harbor, Florida Current
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Boca Grande Pass
Click for Map
Mon -- 12:21 AM EST     -1.18 knots Max Ebb
Mon -- 01:10 AM EST     Moonrise
Mon -- 03:02 AM EST     0.00 knots Slack
Mon -- 05:52 AM EST     0.94 knots Max Flood
Mon -- 07:07 AM EST     Sunrise
Mon -- 09:36 AM EST     -0.00 knots Slack
Mon -- 12:21 PM EST     -1.03 knots Max Ebb
Mon -- 01:40 PM EST     Moonset
Mon -- 02:36 PM EST     0.00 knots Slack
Mon -- 05:37 PM EST     Sunset
Mon -- 06:08 PM EST     1.77 knots Max Flood
Mon -- 10:13 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.2-1.1-0.6-00.50.90.90.80.60.3-0.2-0.7-1-0.9-0.40.31.11.61.81.71.40.90.2-0.6

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 (17,4,5,8)
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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.