Monday, April19, 2021
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Marine Weather and Tides
Ona, 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 6:58AMSunset 7:57PM Monday April 19, 2021 6:19 PM EDT (22:19 UTC) Moonrise 11:22AMMoonset 12:51AM Illumination 55% Phase: First Quarter Moon; Moon at 8 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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GMZ830 Tampa Bay Waters- 234 Pm Edt Mon Apr 19 2021
Tonight..North winds around 5 knots then becoming east after midnight. Bay and inland waters smooth. A slight chance of showers.
Tuesday..East winds around 5 knots then becoming southwest around 10 knots in the afternoon. Bay and inland waters a light chop. Showers with a chance of Thunderstorms.
Tuesday night..Southwest winds around 5 knots then becoming northwest around 10 knots toward morning. Bay and inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Wednesday..Northwest winds around 10 knots. Bay and inland waters a light chop. A slight chance of Thunderstorms in the morning.
Wednesday night..North winds around 10 knots. Bay and inland waters a light chop.
Thursday..Northeast winds 10 to 15 knots diminishing to 5 to 10 knots in the late morning and afternoon. Bay and inland waters a moderate chop.
Thursday night..East winds around 10 knots. Bay and inland waters a light chop.
Friday..Southeast winds around 10 knots. Bay and inland waters a light chop.
Friday night..Southeast winds 5 to 10 knots increasing to around 15 knots after midnight. Bay and inland waters a moderate chop.
Saturday..South winds 10 to 15 knots. Bay and inland waters a moderate chop. A slight chance of Thunderstorms in the afternoon.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 234 Pm Edt Mon Apr 19 2021
Synopsis..A quasi-stationary frontal boundary over the south central gulf waters this afternoon will meander about through mid week. Ample moisture and instability combined with the front will support periods of showers and Thunderstorms across the waters tonight through Wednesday with gusty winds, frequent lightning, locally higher seas, and perhaps even a waterspout possible near the strongest storms. During Wednesday a secondary reinforcing cold front will move south through the waters during the day with a slight uptick in winds toward cautionary levels possible Wednesday night into early Thursday in the wake of the front. Pleasant dry boating conditions expected during Thursday and Friday as high pressure builds in over the region.


7 Day Forecast for Marine Location Near Ona, FL
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location: 27.51, -82     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 191823 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 223 PM EDT Mon Apr 19 2021

. Strong to Severe Storms Possible Through Tuesday . . Locally Heavy Rainfall Possible Through Tuesday . . High Risk Of Rip Currents Along Area Beaches Through Tuesday Night .

DISCUSSION. A quasi-stationary front across the south-central Florida peninsula combined with ample moisture, upper level divergence, and weak vort lobes moving across the region within the strong mid level southwest to west wind flow will continue to support an enhanced rainfall potential across the forecast area through mid week with some locally heavy rains possible, especially in areas where the training of storms occur with some minor flooding of low lying and poor drainage areas possible, and much of the forecast area remains in a Marginal Risk for excessive rain through the period.

In the interim though ongoing convection across the region this afternoon should wind down early tonight as impulses aloft move away from the region and overall low level convergence weakens, with mainly partly to mostly cloudy skies expected overnight. Hi- Res CAM guidance for the most part is in agreement with this, but given the presence of the front, abundant moisture in place, and divergence aloft will retain low rain chances (Pops 20-30%) in the forecast for the overnight time frame.

On Tuesday the front combined with ample moisture and additional short wave energy advancing eastward from the Gulf, and good upper level divergence should help to develop numerous showers and storms over the Gulf waters during the pre-dawn hours, with this convection then moving onshore toward sunrise with another day with widespread showers and scattered storms expected with some strong to severe storms possible. In addition the threat for additional heavy rainfall with localized flooding of low lying and poor drainage areas will continue as well. Similar to today considerable cloudiness and elevated rain chances will keep temperatures near seasonal norms with highs in the upper 70s to lower 80s expected area-wide.

During Wednesday a secondary cold front will move into the region during the day. Ongoing showers and storms across central and southern zones during the morning hours will gradually end from north to south during the afternoon as the front and drier air in its wake moves into the forecast area through Wednesday night. In the wake of the front cooler temperatures can be expected with lows Wednesday night falling into the lower to mid 50s across the Nature Coast, and upper 50s to lower 60s central and south. High pressure will build in over the southeastern U.S. and Florida through the end of the week with pleasant dry weather expected during Thursday and Friday with daytime highs remaining near seasonal norms with highs in the lower 80s each day. During next weekend models show another area of low pressure moving across the lower Mississippi valley and Southeastern states, and then up along the mid Atlantic coast with a trailing cold front approaching and moving into the region on Sunday bringing with it increasing chances for showers and storms along and ahead of it. At the moment there are some model timing differences with regards to this frontal passage, so for now will keep inherited low rain chances (Pops 20-40%) in place and wait to see if better model continuity develops in the coming days.

AVIATION. Intervals of MVFR/IFR cigs/vsbys will be possible at the terminals during the next 24 hours as areas of showers and scattered storms continue to move across the region. Outside of the convection VFR is expected. West to northwest winds around 10 knots with higher gusts near TSRA the remainder of this afternoon will become light and variable after 00Z tonight, then becoming southwest to west and increasing to 10 to 12 knots after 15Z on Tuesday with higher gusts in the vicinity of TSRA.

MARINE. A quasi-stationary frontal boundary over the south-central Gulf waters this afternoon will meander about through mid week. Ample moisture and instability combined with the front will support periods of showers and thunderstorms across the waters tonight through Wednesday with gusty winds, frequent lightning, locally higher seas, and perhaps even a waterspout possible near the strongest storms. During Wednesday a secondary reinforcing cold front will move south through the waters during the day with a slight uptick in winds toward Cautionary levels possible Wednesday night into early Thursday. Ongoing scattered showers and storms over the central and southern water Wednesday morning will gradually end from north to south during the afternoon with the frontal passage as drier air moves into the region in the wake of the front, with pleasant dry boating conditions expected to end the week as high pressure builds in over the region.

FIRE WEATHER. A stationary front across the south central Florida peninsula will continue to support elevated rain chances across all of west central and southwest Florida through early Wednesday. The elevated rain chances will keep humidity values well above critical levels through mid week with no Red Flag conditions expected. Drier air will move into the region Wednesday night into Thursday in the wake of a second cold front, but humidity values are forecast to remain above critical levels. Weak 20 foot winds and transport winds will support low dispersions across the region on Tuesday, otherwise no other fire weather concerns are expected.

Preliminary Point Temps/PoPs. TPA 67 76 69 81 / 20 70 40 20 FMY 71 81 71 85 / 30 70 60 60 GIF 66 77 68 83 / 20 80 50 20 SRQ 68 78 68 80 / 20 80 50 30 BKV 61 77 61 82 / 10 70 30 10 SPG 68 76 71 80 / 20 80 50 20

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

Gulf waters . None.

DISCUSSION/AVIATION/MARINE/FIRE WEATHER . 57/McMichael RADAR . 19/Hurt DECISION SUPPORT . 29/Delerme


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PMAF1 31 mi50 min 73°F 78°F1012.3 hPa
GCTF1 33 mi50 min 72°F 66°F
MTBF1 33 mi50 min NNE 8 G 8.9 72°F 66°F
EBEF1 36 mi50 min 73°F 80°F1012.2 hPa
SAPF1 - 8726520 - St. Petersburg, FL 37 mi50 min N 5.1 G 7 73°F 77°F1012.8 hPa
SKCF1 37 mi62 min NW 5.1 G 7
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 37 mi56 min N 5.1 G 8
TSHF1 - 8726667 - East Bay Causeway, FL 37 mi68 min N 2.9 G 7
OPTF1 - 8726607 - Old Port Tampa, FL 38 mi50 min NNW 8 G 9.9 71°F 79°F1012.6 hPa
VENF1 - Venice, FL 39 mi80 min NW 8 G 8.9 78°F 80°F1011.5 hPa (-1.5)72°F
CLBF1 40 mi86 min NNE 2.9 G 6 75°F 1011.6 hPa

Wind History for C-Cut, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sarasota / Bradenton, Sarasota-Bradenton International Airport, FL30 mi27 minN 510.00 miMostly Cloudy79°F68°F69%1011.3 hPa

Link to 5 minute data for KSRQ

Wind History from SRQ (wind in knots)
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Last 24hrS10SW8SW9SW10S10S10SW10SW9SW13S11W12
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2 days agoSW9S9S9S10S9S9SW8SW9SW13SW13SW11SW11SW11--SW9SW13SW10SW10SW11SW12SW10SW10SW12S11

Tide / Current Tables for Redfish Point, Manatee River, Tampa Bay, Florida
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Redfish Point
Click for Map
Mon -- 01:53 AM EDT     Moonset
Mon -- 02:50 AM EDT     -0.09 feet Low Tide
Mon -- 07:01 AM EDT     Sunrise
Mon -- 12:23 PM EDT     Moonrise
Mon -- 06:04 PM EDT     1.95 feet High Tide
Mon -- 07:57 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.1-0-0.100.20.40.70.91.11.21.21.31.31.41.61.81.91.91.91.81.61.31

Tide / Current Tables for Shell Point, Tampa Bay, Florida
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Shell Point
Click for Map
Mon -- 01:53 AM EDT     Moonset
Mon -- 02:53 AM EDT     -0.08 feet Low Tide
Mon -- 07:00 AM EDT     Sunrise
Mon -- 12:22 PM EDT     Moonrise
Mon -- 06:42 PM EDT     1.93 feet High Tide
Mon -- 07:57 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.1-0-0.100.20.40.70.911.11.21.21.31.41.51.61.81.91.91.91.71.41.1

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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