Monday, April19, 2021
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Marine Weather and Tides
Inverness Highlands South, 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 7:59PM Monday April 19, 2021 5:05 PM EDT (21:05 UTC) Moonrise 11:20AMMoonset 12:56AM Illumination 54% 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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GMZ850 Coastal Waters From Tarpon Springs To Suwannee River Fl Out 20 Nm- 234 Pm Edt Mon Apr 19 2021
Tonight..Northwest winds around 10 knots then becoming northeast in the late evening and overnight. Seas 2 feet. Bay and inland waters a light chop.
Tuesday..East winds around 10 knots then becoming northwest late in the afternoon. Seas 2 feet. Bay and inland waters a light chop. Showers likely in the morning. A chance of Thunderstorms.
Tuesday night..Northeast winds around 5 knots then becoming north late in the evening, then becoming northwest around 10 knots after midnight. Seas 2 feet. Bay and inland waters a light chop. A slight chance of Thunderstorms.
Wednesday..Northwest winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Wednesday night..Northwest winds 10 to 15 knots then becoming north after midnight. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Thursday..Northeast winds 10 to 15 knots then becoming north 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Thursday night..Northeast winds 5 to 10 knots then becoming east around 15 knots in the late evening and overnight. Seas 2 feet. Bay and inland waters a moderate chop.
Friday..East winds 10 to 15 knots diminishing to 5 to 10 knots in the afternoon. Seas 2 feet. Bay and inland waters a moderate chop.
Friday night..East winds 5 to 10 knots then becoming southeast 10 to 15 knots in the late evening and overnight. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Saturday..South winds increasing to 15 to 20 knots then becoming southwest 10 to 15 knots late in the afternoon. Seas 2 to 3 feet. Bay and inland waters choppy. A chance of showers and 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 Inverness Highlands South, FL
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location: 28.78, -82.41     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
ARPF1 - APK - Aripeka, FL 28 mi132 min E 4.1 G 7 70°F 1012.6 hPa
CDRF1 - Cedar Key, FL 41 mi66 min NNW 7 G 9.9 73°F 1012.4 hPa (-2.6)57°F
FHPF1 - Fred Howard Park, FL 48 mi72 min N 5.1 G 7 71°F 1013.6 hPa

Wind History for Cedar Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Crystal River Airport, FL10 mi71 minN 010.00 miFair73°F63°F69%1012.5 hPa
Brooksville-Tampa Bay Regional Airport, FL22 mi73 minN 410.00 miMostly Cloudy74°F61°F64%1012.8 hPa

Link to 5 minute data for KX40

Wind History from X40 (wind in knots)
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Last 24hrN5N4NE5N6N3N5N6CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE7NE5
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2 days agoSE5SE7S9S8NW3NW5CalmCalmCalmNW3CalmCalmCalmCalmNW3N5CalmCalmCalmNW3CalmNW3NW8N10
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Tide / Current Tables for Halls River Bridge, Halls River, Florida
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Halls River Bridge
Click for Map
Mon -- 01:57 AM EDT     Moonset
Mon -- 07:00 AM EDT     Sunrise
Mon -- 09:23 AM EDT     0.04 feet Low Tide
Mon -- 12:20 PM EDT     Moonrise
Mon -- 02:25 PM EDT     0.25 feet High Tide
Mon -- 06:05 PM EDT     0.14 feet Low Tide
Mon -- 07:59 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.60.50.40.40.30.20.20.100.10.10.20.20.20.20.20.20.10.20.30.40.60.7

Tide / Current Tables for Chassahowitzka, Chassahowitzka River, Florida
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Chassahowitzka
Click for Map
Mon -- 01:56 AM EDT     Moonset
Mon -- 07:00 AM EDT     Sunrise
Mon -- 08:19 AM EDT     0.09 feet Low Tide
Mon -- 12:18 PM EDT     0.20 feet High Tide
Mon -- 12:20 PM EDT     Moonrise
Mon -- 03:13 PM EDT     0.17 feet Low Tide
Mon -- 07:58 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.50.50.40.30.20.20.10.10.10.10.20.20.20.20.20.20.20.20.30.30.40.50.5

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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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