Sunday, May20, 2018 L-36.com


Marine Weather and Tides
Captiva, 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 6:36AMSunset 8:12PM Sunday May 20, 2018 10:08 AM EDT (14:08 UTC) Moonrise 10:49AMMoonset 12:00AM Illumination 31% Phase: Waxing Crescent; Moon at 6 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- 357 Am Edt Sun May 20 2018
Today..Southeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Tonight..East winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers and isolated Thunderstorms.
Monday..Southeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms.
Monday night..East winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers and isolated Thunderstorms.
Tuesday..Southeast winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers and isolated Thunderstorms.
Tuesday night..East winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms.
Wednesday..Southeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms.
Wednesday night..Southeast winds 5 to 10 knots then becoming east around 15 knots after midnight. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers and isolated Thunderstorms.
Thursday..Southeast winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers and isolated Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 357 Am Edt Sun May 20 2018
Synopsis..High pressure over the western atlantic will extend north of the region, with a southeast wind flow in place across the waters. A surface trough will move across the florida peninsula and eastern gulf of mexico today, enhancing rain chances. Winds will generally remain from the southeast through early next week, with no headlines expected at this time. The main concern will be higher winds and seas as well as dangerous lightning associated with Thunderstorms.

7 Day Forecast for Marine Location Near Captiva, FL
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location: 26.51, -82.2     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 201146
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
746 am edt Sun may 20 2018

Aviation
Mainly MVFR or ifr conditions persist this morning across area
terminals with intermittentVFR. Numerous showers and a few
thunderstorms can be expected today with MVFR ifr CIGS and or vsbys
possible at just about any time.

Prev discussion issued 355 am edt Sun may 20 2018
short term (today-Monday)...

stagnant pattern persists with an u l trough over the
eastern gulf of mexico western caribbean and an u l ridge
northeast of the bahamas. W v imagery shows circulation
around both of these systems pulling deep tropical moisture
north from the itcz in atmospheric river like fashion across
the central caribbean and florida peninsula. This pattern
is expected to persist through Monday with pcpw values
across the forecast area around 2 inches which will
continue to create a threat for locally heavy rain each day.

Atmosphere remains conditionally unstable and weak surface
heating will generate numerous showers and isolated
thunderstorms each day. Extensive cloud cover shower
activity will keep MAX temps several degrees below climatic
normals with highs in the lower to mid 80s across west
central and southwest florida.

Due to the heavy rain over the past several days, there
have been significant rises on the alafia and little manatee
rivers. The alafia river will likely rise above flood stage
Sunday night, and any additional heavy rain across the
little manatee river basin could cause the little manatee to
rise to near flood stage in the next couple of days.

Long term (Tuesday - Saturday)...

throughout the extended forecast period, much of florida
will remain in a tropical airmass with ample moisture in
place each day setting the stage for daily showers and
thunderstorms. Placement of surface high pressure across the
western atlantic will keep a moist S SE in place in the
lower-levels. Subtle changes from day-to-day will have an
impact on daily pops but generally expecting scattered to
numerous thunderstorms. Late in the period, models continue
to differ on their handling of tropical moisture disturbance
moving out of the western caribbean. GFS appears to be an
easterly outlier compared to ECMWF and cmc but still plenty
of time to see how things will play out in the coming days.

As far as temps are concerned, generally expecting mid 80s
for highs with lower 70s overnight.

Aviation...

vfr CIGS this morning 100-120 with areas of MVFR cigs
010-020. Numerous showers and isolated thunderstorms will
develop today with LCL MVFR CIGS and ifr vsbys. Areas of
marginal MVFR CIGS will develop this afternoon 025-035.

Marine...

winds and seas are expected to remain below advisory levels
through the period. Main hazard will be showers and
thunderstorms which will be possible over the waters through
the remainder of the week. The stronger storms will be
capable of producing strong gusty winds, locally rough seas,
and heavy rain.

Fire weather...

no fire weather hazards are expected for the next several
days as relative humidity values are expected to remain well
above critical levels.

Preliminary point temps pops
Tpa 83 72 83 72 70 30 60 40
fmy 83 72 84 71 60 40 60 40
gif 83 72 83 70 70 40 60 40
srq 83 72 83 72 60 30 60 40
bkv 82 70 83 69 70 40 60 40
spg 82 73 83 74 70 30 60 40

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Aviation... 05 carlisle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FMRF1 - 8725520 - Fort Myers, FL 20 mi51 min ESE 4.1 G 7 73°F 83°F1017.7 hPa
NPSF1 - 8725110 - Naples, FL 33 mi51 min 74°F 80°F1017.5 hPa
VENF1 - Venice, FL 41 mi69 min ENE 8 G 11 71°F 79°F1018 hPa (+1.0)71°F
RKXF1 - Rookery Bay Reserve, FL 41 mi84 min 73°F 73°F

Wind History for Naples, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Myers, Page Field, FL18 mi76 minESE 510.00 miOvercast73°F71°F94%1017.8 hPa
Fort Myers, Southwest Florida International Airport, FL23 mi76 minESE 810.00 miOvercast73°F72°F96%1017.6 hPa

Wind History from FMY (wind in knots)
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Last 24hrSE10SE6SE9S6SE13S14
G19
SW3CalmNE3SE8E7E5SE7SE8SE6E4CalmE4E5E4E3E5E5SE7
1 day agoS4S433W10W9W11W8W7SW4CalmSE4SE3CalmE5E3SE4E3E3SE5CalmE3SE5E7
2 days agoS7S7SE6S8SW9SW8S13
G17
CalmNE8E7CalmE6SE6SE5SE5SE5SE5SE3SE5E4CalmSE4SE5SE8

Tide / Current Tables for Captiva Island, Pine Island Sound, Florida
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Captiva Island
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Sun -- 12:38 AM EDT     Moonset
Sun -- 12:53 AM EDT     -0.32 feet Low Tide
Sun -- 06:39 AM EDT     Sunrise
Sun -- 11:48 AM EDT     Moonrise
Sun -- 04:56 PM EDT     2.21 feet High Tide
Sun -- 08:11 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.3-0.3-0.20.10.40.711.21.31.31.31.31.41.61.822.12.22.11.91.71.30.90.4

Tide / Current Tables for Point Ybel (0.4 Mi. NW of), Florida Current
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Point Ybel (0.4 Mi. NW of)
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Sun -- 12:37 AM EDT     Moonset
Sun -- 01:17 AM EDT     0.00 knots Slack
Sun -- 04:16 AM EDT     1.11 knots Max Flood
Sun -- 06:38 AM EDT     Sunrise
Sun -- 11:15 AM EDT     0.08 knots Min Flood
Sun -- 11:48 AM EDT     Moonrise
Sun -- 02:58 PM EDT     0.80 knots Max Flood
Sun -- 05:29 PM EDT     -0.00 knots Slack
Sun -- 08:10 PM EDT     Sunset
Sun -- 10:49 PM EDT     -1.34 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.8-0.20.50.91.11.10.90.80.60.40.20.10.10.40.70.80.60.2-0.3-0.7-0.9-1.1-1.3-1.3

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Tampa Bay, FL (10,2,3,4)
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Ground Weather Radar Station Tampa Bay Area, FL
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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.