Tuesday, December1, 2020
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Marine Weather and Tides
Port St. John, 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 6:57AMSunset 5:27PM Tuesday December 1, 2020 4:28 AM EST (09:28 UTC) Moonrise 6:33PMMoonset 8:01AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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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AMZ552 Volusia-brevard County Line To Sebastian Inlet 0-20 Nm- 356 Am Est Tue Dec 1 2020
.small craft advisory in effect until 11 am est this morning...
Today..Northwest winds 20 to 25 knots becoming north 10 to 15 knots. Seas 5 to 7 feet with a dominant period 6 seconds. Choppy on the intracoastal waters.
Tonight..Northwest winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 9 seconds. A light chop on the intracoastal waters.
Wednesday..North winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 5 seconds. A moderate chop on the intracoastal waters.
Wednesday night..Northeast winds 10 to 15 knots. Seas 3 to 4 feet. A light chop on the intracoastal waters.
Thursday..East winds 10 to 15 knots. Seas 3 to 4 feet. A moderate chop on the intracoastal waters.
Thursday night..East winds 10 to 15 knots. Seas 3 to 4 feet.
Friday..Southeast winds 10 knots. Seas 3 to 4 feet. Slight chance of showers.
Friday night..Southeast winds 10 knots becoming south after midnight. Seas 3 to 4 feet. Chance of showers.
Saturday..Southwest winds 10 knots becoming west in the afternoon. Seas 3 to 4 feet. Chance of showers.
AMZ500 Synopsis For Flagler Beach To Jupiter Inlet Out To 60 Nm- 356 Am Est Tue Dec 1 2020
Synopsis..A strong high pressure ridge will build east from the western gulf coast into the southeast u.s. Through Thursday, then into the atlantic Friday. The next cold front will reach central florida on Saturday. Northwest winds this afternoon will veer to northeast Wednesday, east on Thursday, and southeast to south on Friday. Winds will become offshore Saturday as the front pushes through the local waters.
Gulf stream hazards..West to northwest winds 15 to 25 knots, with seas 6 to 9 feet today. Winds and seas will decrease tonight. The approximate location of the west wall of the gulf stream based on the real time ocean forecast system as of Saturday, november 28th. 54 nautical miles east of ponce inlet. 39 nautical miles east of port canaveral. 30 nautical miles east of sebastian inlet. 22 nautical miles east of fort pierce inlet. 13 nautical miles east of saint lucie inlet.


7 Day Forecast for Marine Location Near Port St. John, FL
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location: 28.47, -80.86     debug


Area Discussion for - Melbourne, FL
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FXUS62 KMLB 010900 AFDMLB

Area Forecast Discussion National Weather Service Melbourne FL 400 AM EST Tue Dec 1 2020

DISCUSSION. Today and Tonight . The main post frontal surge of cooler and dryer air developed a couple hours after nightfall Monday with breezy conditions still ongoing at many locations. Some sct higher clouds present this morning will not hinder the cooldown and it will remain a chilly day with highs remaining in the 50s over N central FL north of a line from Kissimmee to Cocoa and temps making it into the L60s over the Space and Treasure Coasts to Lake Okeechobee this aftn. Much lower dewpoints will settle south this afternoon, setting the stage for widespread temps in the 30s tonight. Cool high pressure will settle just north of the region, leading to Nly drainage winds around 4 to 6 mph. The present forecast shows lowest readings in the M30s at all sites W of US Hwy One, with L30s in traditionally colder lower spots protected from the wind. Expect patchy frost inland from pre-dawn through sunrise Wed.

Lows along the Intracoastal and barrier islands should range around 37 to 45 degrees, and frost is not expected at the intracoastal or barrier island locations.

Wednesday-Saturday . The large eastern CONUS surface high will gradually shift eastward into the western Atlantic, leading to return onshore flow, veering from NE Wed to E Thu and SE-S Fri. Model guidance remains consistent showing weak, strung-out vort lobes embedded in the southern stream moving across the Florida peninsula through the period, although none have any significant amplitude. AS such, guidance has backed off on potential for light rain, although would not be surprised to see some virga or sprinkles by late Thu night, with just a slight chance for showers developing on Fri.

Timing/placement differences arise Fri-Fri night with the handling of a northern stream short wave trough moving through the SE CONUS. The 00Z ECM is faster/slightly weaker with this feature than the GFS/CMC, leading to a weaker surface positioned farther south which results in a slightly faster (by ~6 hours (approach and passage of the next cold front on Saturday. The slower solutions would argue for greater moisture return and significantly higher POPs for ECFL than are being advertised by the NBM. The higher Superblend numbers are in better agreement with this possibility, and have weighted the forecast in this direction, going with scattered (40) POPs for both Fri night and Sat.

After a cold start to Wed, temps will be slow to rise, reaching maxes ranging from the L60s north to around 70F over Martin County. Cool Wed night with mins ranging from the M40s over Lake/interior Volusia to the L50s along the immediate coast. Max temps warm into the L-M70s Thu and U70s Fri with mins in the U50s-L60s both nights. Clouds/precip will hold temps down a bit across the north-central CWA (L-M70s), then turning cooler behind the front, U40s-L50s for all but the Treasure Coast.

Sunday-Tuesday . Broad troughing continues over the eastern CONUS, which keeps a high pressure ridge in place from the central-SE CONUS into Florida. This should keep dry/cool conditions in place through early next week. Temps are progged to remain below normal with maxes in the M-U60s (around 70F far SE); mins in the U40s-L50s Sun night, and in the 40s Mon-Tue nights.

AVIATION. VFR conds over the next 24-30 H with early SFC WND G25kt through around 01/10z. No obstructions to sky/vis.

MARINE. Today and Tonight . The ongoing surge of NW winds over the waters requires advisory conds areawide through at least 11 AM, then tapering to the offshore segments and nearshore Treasure Coast into tonight as winds begin to diminish and slowly veer in direction. headlines for caution will likely continue into the overnight period as the Gulfstream current endures countering winds, and seas remain somewhat elevated.

Wednesday-Saturday . The strong high pressure ridge will build over the SE CONUS through mid week and into the western Atlantic Thu-Fri. The next cold front will reach central Florida by Saturday with winds veering offshore ahead of (SW) and behind (NW) the boundary. For the most part, winds will remain in the 10-15kt range with seas 3-5ft, though some 6ft seas will be possible well offshore early Wed morning.

FIRE WEATHER. Today . Very dry air sinking south over the area will produce RH values in the 20s across inland locations by early afternoon. Wind and RH conditions combined will produce marginally hazardous weather conditions, however the fuel dryness index is not high enough to justify Red Flag conds. RH values will trend higher through midweek as onshore flow returns to the area.

CLIMATE. Record cool high temperatures for December 1st.

Daytona - 53 degrees in 1957 Leesburg - 52 degrees in 1979 Sanford - 49 degrees in 1976 Orlando - 56 degrees in 1957 Melbourne - 58 degrees in 1963 Vero Beach - 57 degrees in 1944 Ft. Pierce - 58 degrees in 1910

Record low temperatures for December 2nd.

Daytona - 31 degrees in 1957 Leesburg - 33 degrees in 1964 Sanford - 33 degrees in 1974 Orlando - 30 degrees in 1910 Melbourne - 34 degrees in 1974 Vero Beach - 37 degrees in 1974 Ft. Pierce - 34 degrees in 1910

PRELIMINARY POINT TEMPS/POPS. DAB 56 36 62 50 / 0 0 0 0 MCO 59 37 63 48 / 0 0 0 0 MLB 61 36 66 52 / 0 0 0 0 VRB 62 39 69 52 / 0 0 0 0 LEE 58 36 61 45 / 0 0 0 0 SFB 57 36 63 48 / 0 0 0 0 ORL 58 39 64 50 / 0 0 0 0 FPR 62 39 69 54 / 0 0 0 0

MLB WATCHES/WARNINGS/ADVISORIES. FL . None. AM . Small Craft Advisory until 11 AM EST this morning for Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia- Brevard County Line to Sebastian Inlet 0-20 nm.

Small Craft Advisory until 10 PM EST this evening for Flagler Beach to Volusia-Brevard County Line 20-60 nm-Sebastian Inlet to Jupiter Inlet 0-20 nm-Sebastian Inlet to Jupiter Inlet 20-60 nm-Volusia-Brevard County Line to Sebastian Inlet 20-60 nm.



SHORT TERM . Pendergrast LONG TERM . Cristaldi AVIATION . Pendergrast


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41113 - Cape Canaveral Nearshore, FL (143) 18 mi32 min 73°F2 ft
41009 - CANAVERAL 20 NM East of Cape Canaveral, FL 36 mi38 min WNW 25 G 33 58°F 79°F7 ft1015.9 hPa50°F
SIPF1 47 mi43 min 55°F 55°F1017 hPa
GTXF1 - Guana Tolomato Matanzas Reserve, FL 84 mi103 min WNW 8 46°F 1018 hPa32°F

Wind History for Trident Pier, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cocoa Beach, Cape Canaveral Air Force Station Skid Strip, FL16 mi32 minNW 18 G 2310.00 miFair and Breezy51°F40°F69%1016.9 hPa
Cocoa - Patrick Air Force Base, FL22 mi32 minNW 19 G 2510.00 miFair and Breezy52°F41°F68%1017.4 hPa

Link to 5 minute data for KTIX

Wind History from TIX (wind in knots)
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1 day agoCalm------------------CalmCalm5CalmCalmS7SW7SW7SW5S3SE6SE5S4S5
2 days ago3------------------CalmCalmCalmCalmSW8SW8SW6W6NW4NW433Calm4

Tide / Current Tables for Titusville, Indian River, Florida
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Titusville
Click for Map
Tue -- 04:31 AM EST     4.02 feet High Tide
Tue -- 06:58 AM EST     Sunrise
Tue -- 08:01 AM EST     Moonset
Tue -- 11:31 AM EST     3.96 feet Low Tide
Tue -- 05:25 PM EST     Sunset
Tue -- 06:32 PM EST     Moonrise
Tue -- 07:29 PM EST     4.01 feet High Tide
Tue -- 11:41 PM EST     4.00 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Canaveral Harbor Entrance, Florida (2)
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Canaveral Harbor Entrance
Click for Map
Tue -- 01:43 AM EST     0.21 feet Low Tide
Tue -- 06:57 AM EST     Sunrise
Tue -- 08:00 AM EST     Moonset
Tue -- 08:04 AM EST     4.35 feet High Tide
Tue -- 02:15 PM EST     0.79 feet Low Tide
Tue -- 05:25 PM EST     Sunset
Tue -- 06:32 PM EST     Moonrise
Tue -- 08:00 PM EST     3.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.30.20.61.42.43.44.14.34.13.52.71.81.10.80.91.42.23.13.73.93.73.12.3

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.