Sunday, April18, 2021
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Marine Weather and Tides
Captiva, FL

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:59AMSunset 7:54PM Sunday April 18, 2021 4:08 PM EDT (20:08 UTC) Moonrise 10:31AMMoonset 12:00AM Illumination 43% Phase: First Quarter Moon; Moon at 7 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- 308 Pm Edt Sun Apr 18 2021
Tonight..South winds 5 to 10 knots increasing to around 15 knots after midnight. Seas 2 to 3 feet. Bay and inland waters a moderate chop. A slight chance of Thunderstorms in the late evening and overnight. A chance of showers after midnight.
Monday..Southwest winds around 15 knots then becoming west 5 to 10 knots late in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Showers likely until late afternoon. A slight chance of Thunderstorms. A chance of showers late in the afternoon.
Monday night..Northwest winds around 5 knots then becoming northeast late in the evening, then becoming southeast around 10 knots after midnight. Seas 2 to 3 feet. Bay and inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Tuesday..South winds 5 to 10 knots then becoming southwest around 15 knots in the late morning and afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Showers likely and a slight chance of Thunderstorms.
Tuesday night..Southwest winds around 10 knots. Seas 2 to 3 feet. Bay and inland waters a light chop. Showers likely and a slight chance of Thunderstorms.
Wednesday..Northwest winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Showers likely in the morning. A slight chance of Thunderstorms. A chance of showers in the afternoon.
Wednesday night..North winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Thursday..North winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Thursday night..North winds around 15 knots then becoming east in the late evening and overnight. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Friday..East winds around 15 knots diminishing to 5 to 10 knots late in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 308 Pm Edt Sun Apr 18 2021
Synopsis..A frontal boundary across the northern waters will continue to settle to across the central waters tonight, and then linger across the area though midweek. Periods of showers and Thunderstorms will move over the waters with increased winds and seas near the storms. The boundary will push south of the area late Wednesday, with high pressure building in from the northwest and north bringing an increase in winds for 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 181800 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 200 PM EDT Sun Apr 18 2021

DISCUSSION. A frontal boundary will continue to meander over the Nature Coast and gradually settle southward to across the Tampa Bay area and central FL this afternoon and evening as showers and thunderstorms move in from over the Gulf. This boundary will then linger across central FL through mid-week as a series of upper level shortwaves bring periods of showers and thunderstorms across the area along the boundary. This will bring a marginal risk across portions of the area for flooding in any area where training may set up or they get excessive rainfall totals. There is also a marginal risk that a few storms may become severe, especially this afternoon/evening. This pattern continues across the area through Wednesday, with the boundary finally clearing the area later Wednesday bring in some cooler and drier air for the rest of the work week. The next low pressure system then develops in the northern Gulf Saturday and moves across the region through Sunday, bringing a return of some rain chances for next weekend. Temperatures will be in the 70s to mid 80s through Wednesday for highs, and 60s to lower 70s for lows. Behind the front for the end of the week, low temperatures dip about 10 degrees overnight and then rebound with not much change in the highs.

AVIATION. VFR ceilings across the area this afternoon, with moderate and gusty SW winds. Winds will lighten for the evening and overnight hours with some stronger showers and storms possible north and some light patchy fog and more toward morning some showers and storms south. This will cause some MVFR to IFR conditions.

MARINE. A frontal boundary will gradually sag southward from across the northern waters to the central waters and then stall through mid- week, with periods of showers and thunderstorms possible. Winds will generally be S/SW ahead of the boundary and N/NW behind the boundary. The front finally pushes south of the area later Wednesday, with clearing behind the front and winds turning to the NW and increasing to around 15 knots for the end of the week.

FIRE WEATHER. No concerns.

Preliminary Point Temps/PoPs. TPA 71 78 70 80 / 80 80 70 80 FMY 72 85 71 85 / 50 60 50 60 GIF 69 80 69 81 / 70 80 60 80 SRQ 72 80 69 80 / 70 80 60 80 BKV 67 78 62 79 / 80 80 60 80 SPG 72 78 71 79 / 80 80 70 80

TBW WATCHES/WARNINGS/ADVISORIES. FL . High Rip Current Risk through late tonight for Coastal Charlotte- Coastal Hillsborough-Coastal Lee-Coastal Manatee-Coastal Sarasota-Pinellas.

Gulf waters . None.



DISCUSSION/AVIATION/MARINE/FIRE WEATHER . 24/Hubbard DECISION SUPPORT . McMichael/Delerme


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGCF1 - Big Carlos Pass, FL 18 mi75 min SSW 14 G 16 81°F
FMRF1 - 8725520 - Fort Myers, FL 20 mi51 min WSW 7 G 12 83°F 82°F1012.9 hPa
NPSF1 - 8725110 - Naples, FL 33 mi51 min SSW 12 G 14 85°F 82°F1013.5 hPa
RKXF1 - Rookery Bay Reserve, FL 41 mi84 min WSW 8 87°F 1014 hPa77°F
VENF1 - Venice, FL 41 mi69 min S 16 G 18 78°F 81°F1012.3 hPa (-1.8)75°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 minSW 910.00 miA Few Clouds87°F70°F57%1012.7 hPa
Fort Myers, Southwest Florida International Airport, FL23 mi76 minSW 1210.00 miFair87°F65°F48%1012.4 hPa

Link to 5 minute data for KFMY

Wind History from FMY (wind in knots)
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Last 24hrSW11W13W10SW6SW4SW3SW5S3CalmCalmCalmCalmCalmS4S3S4S6S6S8SW13
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W11W10W8SW3SW5S4SW3CalmS5SW3CalmCalmCalmCalmCalm--CalmS46W11W11SW8W11

Tide / Current Tables for Captiva Island, Pine Island Sound, Florida
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Captiva Island
Click for Map
Sun -- 12:58 AM EDT     Moonset
Sun -- 01:07 AM EDT     -0.11 feet Low Tide
Sun -- 07:02 AM EDT     Sunrise
Sun -- 11:30 AM EDT     Moonrise
Sun -- 04:50 PM EDT     2.01 feet High Tide
Sun -- 07:54 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0-0.1-00.10.40.60.911.11.11.11.21.31.41.61.8221.91.81.51.20.80.5

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
Sun -- 12:57 AM EDT     Moonset
Sun -- 01:33 AM EDT     0.00 knots Slack
Sun -- 04:17 AM EDT     0.86 knots Max Flood
Sun -- 07:01 AM EDT     Sunrise
Sun -- 08:02 AM EDT     0.52 knots Min Flood
Sun -- 08:27 AM EDT     0.52 knots Max Flood
Sun -- 11:30 AM EDT     Moonrise
Sun -- 11:59 AM EDT     0.28 knots Min Flood
Sun -- 03:13 PM EDT     0.72 knots Max Flood
Sun -- 05:30 PM EDT     -0.00 knots Slack
Sun -- 07:53 PM EDT     Sunset
Sun -- 09:04 PM EDT     -1.08 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.7-0.30.20.70.90.80.70.60.50.50.50.30.30.40.60.70.60.3-0.3-0.7-1-1.1-1.1-1

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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