Friday, December4, 2020
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Marine Weather and Tides
Port St. Lucie, FL

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:55AMSunset 5:28PM Friday December 4, 2020 7:36 PM EST (00:36 UTC) Moonrise 9:19PMMoonset 10:34AM Illumination 76% Phase: Waning Gibbous; Moon at 20 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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AMZ555 SEbastian Inlet To Jupiter Inlet 0-20 Nm- 251 Pm Est Fri Dec 4 2020
Tonight..Southwest winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 11 seconds. A light chop on the intracoastal waters.
Saturday..West winds 5 to 10 knots becoming north 10 to 15 knots in the afternoon. Seas 3 to 4 feet with a dominant period 11 seconds. A moderate chop on the intracoastal waters. Slight chance of showers in the afternoon.
Saturday night..North winds 5 to 10 knots. Seas 3 to 5 feet with a dominant period 11 seconds. Mostly smooth on the intracoastal waters.
Sunday..Northeast winds 5 to 10 knots becoming east in the afternoon. Seas 3 to 4 feet. A light chop on the intracoastal waters.
Sunday night..Southeast winds 5 to 10 knots becoming southwest after midnight. Seas 3 to 4 feet. Mostly smooth on the intracoastal waters. Chance of showers in the evening, then showers likely after midnight.
Monday..Southwest winds 10 to 15 knots becoming northwest in the afternoon. Seas 3 to 5 feet. A moderate chop on the intracoastal waters. Showers likely in the morning, then chance of showers in the afternoon.
Monday night..Northwest winds 15 knots. Seas 4 to 6 feet.
Tuesday..Northwest winds 10 to 15 knots. Seas 4 to 6 feet.
Tuesday night..Northwest winds 10 to 15 knots. Seas 4 to 6 feet.
Wednesday..Northwest winds 10 to 15 knots. Seas 3 to 4 feet.
AMZ500 Synopsis For Flagler Beach To Jupiter Inlet Out To 60 Nm- 251 Pm Est Fri Dec 4 2020
Synopsis..High pressure over the western atlantic will retreat eastward of ahead of a cold front which will pass through central florida late tonight and Saturday, preceded by isolated to scattered showers. Winds will increase out of south and southwest ahead of the front tonight, then shift to the northwest and north behind the front on Saturday. A trough of low pressure will then develop over the gulf of mexico Sunday and move across florida Sunday night, dragging an even stronger cold front across central florida early Monday. High pressure will rebuild into the local waters on Tuesday.
Gulf stream hazards..South to southwest winds increasing to 15 to 20 knots this evening offshore of volusia and brevard counties, becoming west toward daybreak Saturday. The approximate location of the west wall of the gulf stream based on the real time ocean forecast system as of Tuesday, december 1st. 38 nautical miles east of ponce inlet. 26 nautical miles east of port canaveral. 19 nautical miles east of sebastian inlet. 16 nautical miles east of fort pierce inlet. 10 nautical miles east of saint lucie inlet.


7 Day Forecast for Marine Location Near Port St. Lucie, FL
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location: 27.26, -80.38     debug


Area Discussion for - Melbourne, FL
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FXUS62 KMLB 042026 AFDMLB

Area Forecast Discussion National Weather Service Melbourne FL 326 PM EST Fri Dec 4 2020

DISCUSSION.

Tonight-Saturday . A cold front will continue to push eastward through the FL panhandle and eastern Gulf through late afternoon and early evening, eventually moving into Lake and Volusia counties late tonight/just before daybreak Saturday. Mid-high level clouds will continue to produce mostly cloudy skies ahead of this feature, with isolated sprinkles continuing to be possible with this cloud cover across the area through late day. A few light showers producing measurable rainfall of a few hundredths of an inch or less will also be possible, mainly near to northwest of the I-4 corridor through this evening.

Isolated to scattered showers will be possible ahead of the approaching cold front late this evening and into the overnight. However, rain chances no greater than 20-30 percent as much of this activity should be weakening as it shifts eastward across the peninsula. Low temperatures should be able to fall into the mid- upper 50s just behind the front across northern Lake and Volusia counties around daybreak Saturday, while farther south lows will be in the low to mid 60s.

Cold front will continue a gradual southward movement across the area Saturday, with isolated light showers still possible, mainly across Okeechobee County and the Treasure Coast in the afternoon. Low level cloud cover along and north of the front will hold on into much of the morning, with a gradual clearing north of Orlando into the afternoon. Highs will reach the upper 60s across northern Lake and Volusia counties and low to mid 70s farther south across much of the rest of east central Florida.

Sunday-Monday . Unsettled weather will return to the forecast early next week as upper forcing assists in the formation of a surface wave/low in the Gulf of Mexico, which will drag across the FL peninsula along the tail end of the earlier cold front passage from Saturday. Models have come into much more closer agreement on the evolution of this system, bringing a period of heavy rain to the southern half of the forecast area beginning after sunset on Sunday evening. Prior to this, the day will be dry, PoPs increasing rapidly overnight. The GFS prefers a closed surface low emerging along the eastern FL coast, while the ECM maintains a broad wave over the area. Still, heavy rain will be expected overnight Sunday and into Monday, with rain amounts of 1-2" possible during the period. As mentioned in previous discussions, the PoPs trend continues to rise, adding in a likely mention of rain after midnight for the Treasure Coast, 40-50% northward, with coverage dropping north to south after mid morning on Monday. Will keep mention of thunder out of the forecast for now, with unimpressive instability presented in forecast soundings but may need to be added as Sunday approaches closer in time, at least for southern portions of the area. Rain Chances will begin to clear Monday afternoon as an upper trough digs a cold front through the area in the evening and surface high pressure begins to build across TX and the northern Gulf coast.

Temperatures to start the week will return to near normal values, with highs ranging from the upper 60s to lower 70s. Lows drop to the upper 40s/lower 50s Sunday morning after the week frontal passage, but return to mid 50s/lower 60s by Monday morn.

Tuesday-Thursday . (modified previous) The mentioned surface high continues to build across the Gulf of Mexico and Southeast U.S. mid to late week. This keeps conditions dry and cool with a long duration of NW winds. Looking at several days of below normal afternoon highs, mostly in the 60s. Tuesday morning lows in upper 40s inland and low 50s along the coast, becoming colder for Wednesday morning with low to mid 40s forecast across most of east- central Florida, with a few spots across the northern interior dropping to the upper 30s.

AVIATION. VFR conditions expected to continue through this evening into tonight, before cold front begins to move into Lake and Volusia counties a few hours after midnight. MVFR (locally IFR) cigs will occur with lower cloud deck behind the front as it moves into KLEE-KDAB around 09-11Z and farther south through KISM-KMCO-KTIX through early morning Saturday. Tempo MVFR conditions will also be possible with any isolated to scattered showers ahead of the front from late this evening into the overnight, mainly north of KMLB.

MARINE.

Tonight-Saturday . S/SW winds will increase up to 15-20 knots offshore of Volusia and Brevard counties this evening with speeds 10- 15 knots elsewhere across the coastal waters as front approaches from the west. Have added exercise caution headlines for offshore marine zones north of Sebastian Inlet for these poor boating conditions tonight.

As the cold front moves through the waters late tonight into Saturday, winds will veer to the west toward daybreak and then become north to northwest behind the boundary, generally around 10- 15 knots. Seas will remain around 3-5 feet.

Sunday-Tuesday . Post frontal winds late Saturday and early Sunday with shift northerly, decreasing to less than 10 knots. A surface disturbance will shift from the Gulf of Mexico across the FL peninsula late Sunday evening and night, bringing the chance for heavy rainfall over the local Atlantic waters. Winds behind this system will shift SW/W early Monday, increasing up to 15 knots, with a secondary cold front clearing the area of rain by Monday evening, but veering winds northerly, continuing to increase to 15-20 knots. Seas of 2-4 ft to start the week will gradually build up to 7 ft in the offshore zones by early Tuesday behind the front. Small craft should exercise caution beyond Monday.

PRELIMINARY POINT TEMPS/POPS. DAB 58 67 50 70 / 30 10 0 10 MCO 61 71 50 72 / 30 10 0 10 MLB 63 74 55 74 / 20 10 0 10 VRB 63 76 57 75 / 10 20 10 10 LEE 58 68 49 69 / 30 10 0 10 SFB 61 70 50 72 / 30 10 0 10 ORL 63 72 52 72 / 30 10 0 10 FPR 62 77 57 76 / 10 20 10 10

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

SHORT TERM/AVIATION . Weitlich LONG TERM . Smith DECISION SUPPORT . Leahy


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41114 - Fort Pierce, FL (134) 22 mi41 min 75°F4 ft
SIPF1 42 mi52 min 72°F 72°F1019 hPa
LKWF1 - 8722670 - Lake Worth, FL 48 mi49 min SSE 12 G 13 76°F 76°F1017.8 hPa61°F
TRDF1 - 8721604 - Trident Pier, FL 81 mi49 min SSW 7 G 8 71°F 71°F1019.1 hPa

Wind History for Lake Worth Pier, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Witham Field Airport, FL10 mi47 minSSE 57.00 miPartly Cloudy73°F60°F65%1019 hPa
Fort Pierce, St. Lucie County International Airport, FL17 mi44 minN 010.00 miFair70°F63°F79%1018.5 hPa

Link to 5 minute data for KSUA

Wind History from SUA (wind in knots)
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SE8E10E12SE9SE11SE6SE3SE4CalmSE4SE5S6334SE8SE8S9S6SE5SE5
1 day agoN10NW7NW7NW4W5NW3CalmCalmE9E8E7E8E7E8E12SE11SE8
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2 days agoNW3NW5NW6NW6NW5NW5NW5NW6NW8NW6NW7NW9NW9NW9N7N7N11
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Tide / Current Tables for North Fork, St. Lucie River, Florida
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North Fork
Click for Map
Fri -- 12:47 AM EST     1.12 feet High Tide
Fri -- 06:56 AM EST     Sunrise
Fri -- 07:44 AM EST     0.24 feet Low Tide
Fri -- 10:34 AM EST     Moonset
Fri -- 01:31 PM EST     1.21 feet High Tide
Fri -- 05:26 PM EST     Sunset
Fri -- 08:20 PM EST     0.58 feet Low Tide
Fri -- 09:18 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.11.10.90.70.50.40.30.20.30.60.81.11.21.21.110.90.70.60.60.60.70.8

Tide / Current Tables for Eden, Nettles Island, Indian River, Florida
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Eden
Click for Map
Fri -- 12:54 AM EST     1.12 feet High Tide
Fri -- 06:56 AM EST     Sunrise
Fri -- 07:47 AM EST     0.24 feet Low Tide
Fri -- 10:34 AM EST     Moonset
Fri -- 01:38 PM EST     1.21 feet High Tide
Fri -- 05:26 PM EST     Sunset
Fri -- 08:23 PM EST     0.58 feet Low Tide
Fri -- 09:18 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.11.10.90.80.60.40.30.20.30.50.811.21.21.110.90.80.60.60.60.70.8

Weather Map
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wmap_A
GEOS Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Melbourne, FL
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weather_mapweather_map weather_map


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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 numerous 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.