Tuesday, April20, 2021
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Marine Weather and Tides
Sanford, 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 6:52AMSunset 7:55PM Tuesday April 20, 2021 6:30 AM EDT (10:30 UTC) Moonrise 12:13PMMoonset 1:40AM Illumination 60% Phase: Waxing Gibbous; 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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AMZ550 Flagler Beach To Volusia-brevard County Line 0-20 Nm- 341 Am Edt Tue Apr 20 2021
Today..East winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and afternoon. Seas 1 to 2 feet with a dominant period 11 seconds. A moderate chop on the intracoastal waters. Thunderstorms likely in the morning. Showers likely. Slight chance of Thunderstorms in the afternoon.
Tonight..Northeast winds 5 to 10 knots becoming west 10 to 15 knots after midnight. Seas 2 to 3 feet with a dominant period 6 seconds. A light chop on the intracoastal waters. Slight chance of showers and Thunderstorms in the evening.
Wednesday..Northwest winds 5 to 10 knots becoming east in the afternoon. Seas 2 to 3 feet with a dominant period 6 seconds. A light chop on the intracoastal waters.
Wednesday night..Southwest winds 5 to 10 knots becoming north 10 to 15 knots after midnight. Seas 3 to 4 feet. A light chop on the intracoastal waters.
Thursday..North winds 10 to 15 knots. Seas 3 to 4 feet. A moderate chop on the intracoastal waters.
Thursday night..Northeast winds 10 knots. Seas 3 to 4 feet.
Friday..East winds 10 to 15 knots. Seas 3 to 4 feet.
Friday night..Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Saturday..South winds 15 to 20 knots. Seas 4 to 5 feet. Chance of showers and slight chance of Thunderstorms.
AMZ500 Synopsis For Flagler Beach To Jupiter Inlet Out To 60 Nm- 341 Am Edt Tue Apr 20 2021
Synopsis..Showers and storms will become numerous to widespread today into tonight as another low pressure wave slides east across central florida along a stalled front. The front will slowly sag south of the area from late tonight trough Wednesday night as high pressure builds southward into florida and the adjacent atlantic. A brief surge in north to northeast winds will create poor boating conditions offshore Wednesday night into early Thursday. A slight decrease in winds and seas Thursday night into Friday will be followed by increasing southeast to south winds Friday night and Saturday ahead of another cool front.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream based on the real time ocean forecast system as of Sunday, april 18th. 42 nautical miles east of ponce inlet. 30 nautical miles east of port canaveral. 26 nautical miles east of sebastian inlet. 17 nautical miles east of fort pierce inlet. 10 nautical miles east of saint lucie inlet.


7 Day Forecast for Marine Location Near Sanford, FL
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location: 28.83, -81.31     debug


Area Discussion for - Melbourne, FL
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FXUS62 KMLB 200743 AFDMLB

Area Forecast Discussion National Weather Service Melbourne FL 340 AM EDT Tue Apr 20 2021

DISCUSSION.

. Widespread Heavy Showers and Storms Today With Some Flooding Possible .

This Morning . Early morning analysis shows the stalled frontal boundary is located across the southern FL peninsula, with the broader frontal surface extending north of the Cape. The strongest forcing is currently over the far southern peninsula where numerous storms, some strong, are ongoing. As we approach sunrise models are in decent agreement that additional showers and storms will develop across the central FL peninsula. Temperatures this morning range from the upper 60s north to low 70s south.

While we are currently dry, that will change quickly after about 5AM as rain chances jump to 40-60 percent. Expect multiple rounds of heavy rainfall this morning, with the strongest storms producing a quick 1-2 inches of rain and frequent lightning strikes.

Today . A weak surface wave will develop within the surface frontal zone and move across central FL peninsula. This should enhance convective activity, leading to widespread showers and lightning storms late this morning into the afternoon. Rain chances have been bumped up to 80-90 percent. Afternoon temps should reach the upper 70s to low 80s, though persistent rain/cloud cover should keep temps in the 70s most of the day.

The heaviest rain is most likely across an area stretching from Clermont to Orlando to Titusville, south to Lake Okeechobee and Fort Pierce. That's where widespread rainfall amounts of 2-3 inches are expected, with locally higher amounts possible. Elsewhere, rainfall amounts of 1-2 inches are possible, with locally higher amounts if multiple rounds of heavy rain occur.

Tonight . Scattered to numerous showers and lighting storms continue this evening, as most activity pushes offshore after sunset. Expect showers and a few lightning storms to linger into the overnight hours. We finally start to dry out overnight as a weak cold front begins to move across the FL peninsula. Areas north of I-4 should dry out around midnight, then drying out along/north of the Space Coast by 2-3AM.

Unfortunately for the Treasure Coast and Lake Okeechobee region, this weak front (and the dry air associated with it) will momentarily stall near Sebastian Inlet late tonight. Scattered showers and a few lightning storms are likely to redevelop close to sunrise Wednesday. Have maintained a 40-50 percent chance of rain from Ft. Pierce to Okeechobee south, and a 20 percent chance up to Sebastian Inlet. Overnight lows settle mostly into the 60s.

Wednesday-Friday . Residual mid level trough along the SE seaboard lifts out to the NE leaving flat/zonal flow in place through the end of the work week. The surface cool front, which will lie near a Melbourne-Lake Kissimmee line early in the morning, will sag just south of Lake Okeechobee and the Treasure by early evening. Sufficient deep layer moisture will reside across the southern half CWA to support diurnally forced showers/few TS with highest rain chances over the Treasure Coast in the afternoon. POPs will range from 20-30 for southern Brevard/Osceola to 50-60 for Okeechobee/ St Lucie/Martin. Dry from Wed night through Fri night as post- frontal high pressure builds from the SE CONUS across NOFL and into the western Atlantic.

Max temps Wed in the L-M80s areawide with cooler mins, in the U50s -L60s most areas Wed night. Not as warm Thu with maxes most areas in the U70s, except L80s south and L-M70s for Coastal Volusia. Mins in the U50s-L60s again. Rural inland northern areas (Lake George/Ocala Forest) will see M50s both mornings. U70s-L80s/L-M60s for Fri.

Saturday-Tuesday . The base of an amplified, positive-tilt short wave trough will move across the SE CONUS Sat, and then across northern and central FL late Sat night into Sun. Its attendant surface low pressure area will move rapidly ENE from the mid MS Valley through the mid Atlantic States though Sat night, dragging a cool front rapidly into central Florida. This will be accompanied by increasing moisture and rain chances this weekend, ranging from 50/north to 20/ south Sat-Sat night, and 20/north to 30/south Sun.

As the low pushes offshore the Delmarva region Sun, it is progged to drag the cool front through ECFL by either late Sun afternoon or evening, followed by a return to dry weather through early week, with temps slightly "cooler", albeit still warm/seasonable. Temps U80s/U60s Sat, M-U80s/L-M60s Sun, and L80s/L60s for Mon-Tue.

AVIATION. Low stratus is beginning to develop this morning across the inland peninsula and spread east/north toward the coast. These low clouds could persist for much of today. Multiple rounds of showers and storms will impact all terminals into the early evening. Any heavy shower or storm that moves over a terminal will cause reductions in CIGs/VISBY to IFR/LIFR conditions. A cold front will slowly cross the FL peninsula overnight tonight, though it won't clear the area completely until Wednesday afternoon.

MARINE. Today-Tonight . A stalled front will produce widespread showers and lightning storms today and tonight. Multiple rounds of storms will develop over the peninsula and push offshore. The strongest storms will produce frequent lightning strikes and gusty winds of 30-35 knots, in addition to heavy downpours. Outside of storms, winds 10- 15 knots will vary in direction across the waters due to the stalled frontal boundary. Seas 1-2 feet, perhaps up to 3 feet well offshore. A weak cold front is expected to move across most of the local waters overnight tonight, as winds become W/WNW ahead of the front.

Wednesday-Saturday . Light-moderate offshore/westerly flow Wed will shift to northerly and increase to just shy of 20kt Wed night-Thu morning, with seas briefly building to 5-6ft offshore. Winds veer onshore/NE-E and slacken late Thu-early Fri with seas dropping back to 3-4ft, but then rebuild to 4-5ft as winds increase out of the SE and S ahead of the next FROPA. Seas could flirt with 6ft again Sat, with Cautionary conditions possible.

PRELIMINARY POINT TEMPS/POPS. DAB 76 63 82 58 / 70 20 0 0 MCO 79 66 84 60 / 90 40 10 0 MLB 80 66 84 62 / 90 50 20 0 VRB 82 66 85 63 / 90 60 40 10 LEE 77 65 82 58 / 70 20 0 0 SFB 78 65 85 60 / 80 30 10 0 ORL 79 67 85 62 / 90 30 10 0 FPR 82 66 85 62 / 90 60 50 10

MLB WATCHES/WARNINGS/ADVISORIES. FL . None. AM . None.

Rodriguez/Cristaldi


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TRDF1 - 8721604 - Trident Pier, FL 48 mi43 min ENE 2.9 G 4.1 72°F 75°F1015.2 hPa
GTXF1 - Guana Tolomato Matanzas Reserve, FL 57 mi106 min Calm 64°F 1015 hPa63°F
41009 - CANAVERAL 20 NM East of Cape Canaveral, FL 64 mi31 min 9.7 G 14 76°F1013.7 hPa

Wind History for Trident Pier, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Orlando / Sanford Airport, FL5 mi38 minNE 310.00 miOvercast66°F64°F93%1013.9 hPa
Orlando Executive Airport, FL19 mi38 minE 510.00 miOvercast71°F67°F87%1014.3 hPa

Link to 5 minute data for KSFB

Wind History from SFB (wind in knots)
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Last 24hrW5S4SW5S5N5N8
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NW4NW8N6Calm3CalmCalmCalmW4CalmE3E4CalmCalmE4CalmNE3NE3
1 day agoNW5NE3E4CalmCalmN9N11N3E6E43E5SE9NE5NE3NW7W4SW9E3S4SW3S5S3S4
2 days agoSW6SW4SW4N3CalmSW11SW11SW10SW13SW11W12
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Tide / Current Tables for Ponce de Leon Inlet (inside), Florida (2)
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Ponce de Leon Inlet (inside)
Click for Map
Tue -- 02:39 AM EDT     Moonset
Tue -- 02:55 AM EDT     2.04 feet High Tide
Tue -- 03:00 AM EDT     First Quarter
Tue -- 06:52 AM EDT     Sunrise
Tue -- 09:24 AM EDT     0.65 feet Low Tide
Tue -- 01:11 PM EDT     Moonrise
Tue -- 03:07 PM EDT     1.91 feet High Tide
Tue -- 07:53 PM EDT     Sunset
Tue -- 09:45 PM EDT     0.37 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.7221.91.71.41.10.80.70.70.91.21.51.81.91.81.61.30.90.60.40.40.5

Tide / Current Tables for Ponce de Leon Inlet (inside), Florida
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Ponce de Leon Inlet (inside)
Click for Map
Tue -- 02:39 AM EDT     Moonset
Tue -- 02:54 AM EDT     2.13 feet High Tide
Tue -- 03:00 AM EDT     First Quarter
Tue -- 06:52 AM EDT     Sunrise
Tue -- 09:29 AM EDT     0.76 feet Low Tide
Tue -- 01:11 PM EDT     Moonrise
Tue -- 03:07 PM EDT     2.01 feet High Tide
Tue -- 07:53 PM EDT     Sunset
Tue -- 09:47 PM EDT     0.49 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.822.121.81.41.20.90.80.80.91.21.61.921.91.71.410.70.50.50.6

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