Wednesday, January23, 2019 L-36.com


Marine Weather and Tides
Captiva, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:14AMSunset 6:04PM Wednesday January 23, 2019 5:01 AM EST (10:01 UTC) Moonrise 9:05PMMoonset 9:22AM Illumination 94% Phase: Waning Gibbous; Moon at 17 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- 349 Am Est Wed Jan 23 2019
Today..Southeast winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Tonight..Southeast winds 10 to 15 knots then becoming south around 20 knots after midnight. Seas 3 to 5 feet. Bay and inland waters choppy. A chance of showers and a slight chance of Thunderstorms.
Thursday..Southwest winds around 15 knots with gusts to around 30 knots then becoming northwest in the afternoon. Seas 2 to 4 feet. Bay and inland waters a moderate chop. Showers and a slight chance of Thunderstorms.
Thursday night..North winds around 15 knots. Seas 3 to 5 feet. Bay and inland waters a moderate chop. A slight chance of showers.
Friday..North winds around 15 knots. Seas 3 to 5 feet. Bay and inland waters a moderate chop.
Friday night..Northeast winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Saturday..Northeast winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Saturday night..Northeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop. A chance of showers.
Sunday..Northeast winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. A chance of showers.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 349 Am Est Wed Jan 23 2019
Synopsis..High pressure exits to the east as a cold front approaches from the west with a tightening gradient that will increase winds...becoming up to 20 knots today with some gusts to gale force later tonight and Thursday. The front traverses the waters tonight and Thursday with showers and some strong Thunderstorms along with a wind shift as robust to strong winds continue, high pressure settles into the western gulf coast Thursday night then moves east...with veering and diminishing winds through the end of the week.


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 230832
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
332 am est Wed jan 23 2019

Increasing rain chances tonight into Thursday...

A few strong to severe storms possible late tonight into
early Thursday...

Short term (today - Thursday night)
Deep layered ridging along the eastern seaboard early this morning
slides east through Thu as a long wave trough... With an
accompanying complex frontal system... From the upper midwest to
the southern high plains shifts eastward - from the great lakes
to the gulf of mexico by late thu. The southern portion for the
frontal system reaches east gulf waters in the early hours of
thu... Tracks across most of fl during the day... Then clears south
fl late Thu night.

An initially dry and stable atmosphere on east to southeast lower
level flow will slowly moisten as the flow becomes more southerly
and gusty during today - in response to the pressure gradient
tightening between the departing ridging and the advancing upper
trough front. Today will be warm and while some cloudiness will
be around no rainfall is expected. Tonight southerly flow
gradually becomes more southwesterly... Providing increasing
moisture along with more instability as the front nears. Scattered
showers and a few thunderstorms begin to reach coastal locations
from around tampa bay northward in the evening. Showers spread
inland and cover the entire area along with a slight chance of
storms during the night. These continue to move east in the
morning as the front nears tampa bay around daybreak and the fort
myers area in the afternoon. Showers and storms begin to clear
from the north late afternoon then exit the southern counties thu
night. A few of the thunderstorms could become strong to severe
with the main threat damaging winds but an isolated tornado or two
may be possible. The current expected timing will favor late
tonight into early Thu morning.

Mid term long term (Friday-Tuesday) broad mid upper level
troughing will remain across the eastern two-thirds of the conus
with a series of shortwaves moving through it during the period. For
Friday and Saturday surface high pressure will build in from the
north and settle over the southeast states bringing cool and dry
weather with temperatures several degrees below normal. Saturday
night into Monday shortwave energy will be moving across the gulf of
mexico and into florida, but the timing, location, and strength of
the wave varies highly between the models which leads to rather low
confidence in the forecast during this timeframe. Latest indications
are that the best chance of rain showers will be across south
florida, but a slight shift in location or strength of the shortwave
could bring a much higher chance of rain showers to the entire
region. For now have gone with a blend of the guidance and indicated
slight chance to chance pops from northwest to southeast for
Saturday night through Monday. By Tuesday the shortwave should be
off to the east of the area with weak surface high pressure building
in bringing a return to fair dry weather before the next cold front
approaches from the northwest during midweek.

Aviation
23 06z TAF cycle. PrevailingVFR next 24 hours as clouds increase
and lower. E winds with a few gusts til 15z then SE and gusty.

Winds diminish some and bcm S aft 21z. Approaching front will bring
isold shra late in the period with vcnty tsra at tpa by 24 08z.

Marine
High pressure pulling away to the east as a cold front moves in from
the west will tighten the gradient with increasing winds... Becoming
up to 20 knots with some gusts to gale force later tonight and
thu. The front tracks through Thu with showers and some strong
thunderstorms along with a wind shift to west then northwest as
robust to strong winds continue, high pressure settles in thu
night then moves east... With veering and diminishing winds through
the end of the week.

Fire weather
Robust 20 foot and transport winds today will create high
dispersions. Then a front moves east over the area late tonight
and Thu with showers and strong to severe thunderstorms.

The front exits Thu night. High pressure builds into the western
gulf Thu night and moves along the gulf coast... With a cool stable
dry air mass through sat... But no low rh concerns are expected.

Some rain chances return sun

Preliminary point temps pops
Tpa 78 65 66 46 0 90 80 10
fmy 81 68 71 51 0 50 90 20
gif 79 65 69 44 0 80 90 10
srq 79 65 67 49 0 80 90 10
bkv 80 63 66 40 0 90 80 0
spg 76 64 66 48 0 90 80 10

Tbw watches warnings advisories
Fl... Beach hazards statement through Thursday evening for
coastal manatee-coastal sarasota.

Gulf waters... Small craft advisory until 7 pm est this evening for
waters from bonita beach to englewood fl out 20 to 60
nm-waters from englewood to tarpon springs fl out 20
to 60 nm-waters from tarpon springs to suwannee river
fl out 20 to 60 nm.

Short term aviation marine fire weather... 09 rude
mid term long term decision support... 69 close


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGCF1 - Big Carlos Pass, FL 18 mi68 min E 7 G 11 63°F 1024.2 hPa
FMRF1 - 8725520 - Fort Myers, FL 20 mi32 min E 2.9 G 5.1 60°F 64°F1023.3 hPa
NPSF1 - 8725110 - Naples, FL 33 mi32 min E 5.1 G 8 63°F 64°F1023.1 hPa
RKXF1 - Rookery Bay Reserve, FL 41 mi77 min ENE 5.1 60°F 57°F
VENF1 - Venice, FL 41 mi62 min E 9.9 G 12 60°F 63°F1023.7 hPa (-1.0)57°F

Wind History for Naples, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Myers, Page Field, FL18 mi69 minE 410.00 miFair59°F55°F90%1023.8 hPa
Fort Myers, Southwest Florida International Airport, FL23 mi69 minE 610.00 miFair57°F55°F93%1023.6 hPa

Wind History from FMY (wind in knots)
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1 day agoNE9NE8NE7N10N1063N6NE7NE84NE6E4E4E4NE9NE6NE8NE7NE9NE7NE8NE6NE8
2 days agoNW16
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Tide / Current Tables for Captiva Island, Pine Island Sound, Florida
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Captiva Island
Click for Map
Wed -- 01:41 AM EST     2.08 feet High Tide
Wed -- 07:16 AM EST     Sunrise
Wed -- 09:21 AM EST     Moonset
Wed -- 09:48 AM EST     -0.68 feet Low Tide
Wed -- 04:12 PM EST     1.15 feet High Tide
Wed -- 06:04 PM EST     Sunset
Wed -- 09:04 PM EST     Moonrise
Wed -- 09:06 PM EST     0.63 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.822.11.91.61.20.70.1-0.3-0.6-0.7-0.5-0.10.30.711.11.110.80.70.60.71

Tide / Current Tables for Point Ybel (0.4 Mi. NW of), Florida Current
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Point Ybel (0.4 Mi. NW of)
Click for Map
Wed -- 02:13 AM EST     -0.00 knots Slack
Wed -- 06:45 AM EST     -1.74 knots Max Ebb
Wed -- 07:16 AM EST     Sunrise
Wed -- 09:20 AM EST     Moonset
Wed -- 10:06 AM EST     0.00 knots Slack
Wed -- 12:55 PM EST     1.36 knots Max Flood
Wed -- 05:38 PM EST     -0.00 knots Slack
Wed -- 06:03 PM EST     Sunset
Wed -- 07:40 PM EST     -0.42 knots Max Ebb
Wed -- 09:04 PM EST     Moonrise
Wed -- 09:22 PM EST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.10.70.1-0.5-1-1.4-1.7-1.7-1.5-0.9-0.10.71.21.41.20.90.60.2-0.1-0.4-0.4-0.20.30.8

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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Wind Forecast for Tampa Bay, FL (5,6,7,8)
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Ground Weather Radar Station Tampa Bay Area, FL
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Gulf Stream Current


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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.