Port St. John, FL Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Port St. John, FL

May 7, 2024 9:46 PM EDT (01:46 UTC) Change Location
Sunrise 6:35 AM   Sunset 8:03 PM
Moonrise 5:04 AM   Moonset 6:51 PM 
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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.

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Marine Forecasts
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AMZ552 Volusia-brevard County Line To Sebastian Inlet 0-20 Nm- 332 Pm Edt Tue May 7 2024

Tonight - South winds 10 to 15 knots, becoming around 10 knots late. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 5 seconds and northeast 2 feet at 12 seconds. A light chop on the intracoastal waters.

Wednesday - South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 4 seconds and east 2 feet at 7 seconds. A moderate chop on the intracoastal waters.

Wednesday night - South winds 10 to 15 knots. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 4 seconds and northeast 2 feet at 11 seconds. A light chop on the intracoastal waters.

Thursday - South winds 10 to 15 knots. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 4 seconds and east 3 feet at 12 seconds. A moderate chop on the intracoastal waters.

Thursday night - South winds 10 to 15 knots, becoming southwest after midnight. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 5 seconds and northeast 2 feet at 11 seconds. A light chop on the intracoastal waters.

Friday - Southwest winds 10 to 15 knots, becoming west after midnight. Seas 2 to 3 feet. Wave detail: west 3 feet at 4 seconds and east 1 foot at 11 seconds. A light chop on the intracoastal waters. A chance of showers with a slight chance of Thunderstorms.

Saturday - Northwest winds around 10 knots, becoming northeast in the afternoon, becoming northwest. Seas 2 feet. Mostly smooth on the intracoastal waters. A chance of showers with a slight chance of Thunderstorms, then a slight chance of showers.

Sunday - North winds 5 to 10 knots, becoming east. Seas 2 to 3 feet. Mostly smooth on the intracoastal waters. A slight chance of showers.
winds and waves higher in and near Thunderstorms.

AMZ500 Synopsis For Flagler Beach To Jupiter Inlet Out To 60 Nm- 332 Pm Edt Tue May 7 2024

Synopsis - The atlantic ridge will continue to influence the state of florida through late week. Poor boating conditions are expected to develop Wednesday night into Thursday with increasing south to southwest winds. A frontal boundary is forecast to ease into central florida and the local atlantic waters Friday night and Saturday then become nearly stationary with scattered showers and lightning storms forecast to develop over the local waters.

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 Monday, may 6th.
40 nautical miles east of ponce inlet. 30 nautical miles east of port canaveral. 23 nautical miles east of sebastian inlet. 15 nautical miles east of fort pierce inlet. 10 nautical miles east of saint lucie inlet.


7 Day Forecast for Marine Location Near Port St. John, FL
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Area Discussion for - Melbourne, FL
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FXUS62 KMLB 071950 AFDMLB

Area Forecast Discussion National Weather Service Melbourne FL 350 PM EDT Tue May 7 2024

New DISCUSSION, AVIATION, MARINE, FIRE WEATHER, CLIMATE

Near Record Temperatures Forecast Wednesday through Friday
...Sensitive Fire Weather Conditions Continue and Increase Late Week...

DISCUSSION
Issued at 234 PM EDT Tue May 7 2024

Currently-Tonight... High pressure over the western Atlantic continues to influence the region. Winds have backed southeast near the coast with the east coast sea breeze currently pushing inland across western Volusia, western Brevard, as well as the western Treasure Coast. So far radar has stayed quiet with only isolated showers over the offshore local Atlantic waters. GOES-16 water vapor imagery shows substantial dry air in the mid to upper levels. Rain chances this evening are minimal with mostly dry conditions forecast through this evening. However, isolated showers and a few lighting strikes are possible (PoPs ~20-30%)
across the far interior where the east coast sea breeze is expected to collide with the west coast sea breeze late this afternoon and early evening. Skies will become mostly clear overnight with lows in the upper 60s to low 70s and light southerly winds.

Wednesday... The pattern will remain similar Wednesday, although drier air is expected in the mid to upper levels with the mid level ridge expected to continue to build over the Gulf of Mexico and the state of Florida. South winds are forecast to back southeast into the afternoon at 10-15mph with the east coast sea breeze pushing inland. Afternoon highs in the upper 80s to low 90s along the coast and the mid 90s across the interior are forecast with heat index values in the mid 90s to low 100s under mostly sunny to partly sunny skies.

Wed Night-Thu Night...Mid-level ridging begins to flatten out across the FL peninsula with mainly zonal flow thru the period. At the surface, weak high pressure ridging remains southward with center of the high pushing further seaward. SSE flow will veer SSW during the night/morning periods, but back to southeast during the day along the immediate coast on Thu. The ECSB will not venture very far inland on Thu due to the deeper/stronger SW flow in the low-levels.
This will allow for temperatures to heat up during the day with L90s near the coast and M-U90s W of I-95. These numbers will be very close to record highs at most locations. Overnight lows Wed/Thu nights in the U60s to L70s with M70s not out of the question in a few spots. Continue to keep this period dry, though some models do suggest ISOLD convection Wed evening surrounding the sea breeze collision, though the atmosphere remains fairly dry.

Fri-Tue
Previous Modified
Ridging aloft remains flattened by a substantial mid-upper level trough digging across the central and eastern CONUS, with flow over Florida continuing generally zonal. A weakening cold front drops into Florida late Fri into Sat, shunting high pressure over the Atlantic further out to sea, and bringing small chances for rain. However, rain won't come before one more very hot day Fri with highs in the 90s, even along the barrier islands, as SWRLY flow ahead of the front becomes breezy and very gusty. This will heighten fire sensitivity across ECFL. Some disagreement in moisture placement along the front between models continues, and thus decreasing confidence in rain chances, with the GFS sweeping the highest moisture north of Florida, and the ECM bringing it further southward. On Fri going with PoPs 20pct or less Melbourne southward and 30-50pct towards northern Lake/Volusia counties. The front stalls to the south, keeping 20-40pct rain chances in the forecast on Sat (favoring south) and 20-25pct on Sun Vero Beach southward. The previous front is poised to retreat back northward across central FL as early as Sun night/Mon (GFS) with energy/moisture riding along it, further increasing rain chances through much of next week. Both the GFS/ECM keep a boundary nearby into next week with a supply of deeper moisture and energy aloft that would aid in this potential wetter forecast. This far out there remains model disagreement in timing, strength, and position of various features/parameters - so fingers crossed!

Temperatures slowly work their way back closer towards normal across most of ECFL this weekend into early next week, but remain above normal across the south. Overnight lows in the 70s ease back down into the 60s for most.

AVIATION
(18Z TAFs)
Issued at 234 PM EDT Tue May 7 2024

VFR conditions are forecast with high pressure over the western continuing to influence the Southeast US. South to Southeast winds at 5-12kts will become light overnight, then back southeast into the afternoon Wednesday at 5-10kts. Isolated showers are possible through this evening with VCSH mentioned at KLEE, KMCO, KISM, KSFB this evening.

MARINE
Issued at 234 PM EDT Tue May 7 2024

Currently-Wednesday... Favorable boating conditions are expected with high pressure over the western Atlantic. South-southeast winds at 10 to 15kts are forecast with seas expected to build to 2-3ft with up to 4 ft into late Wednesday afternoon.

Wed Night-Sat...High pressure ridge axis will remain south of the local waters thru the period. A weakening frontal boundary will slide southward across the waters Fri night into Sat, eventually stalling across south FL. This will increase shower and ISOLD lightning storm activity from north to south. With an increasing offshore flow ahead of the boundary the sea breeze will be delayed Thu/Fri and only barely move inland along the Space/Treasure coasts (if at all). Generally S/SSE winds during the day Thu/Fri over the local waters with offshore flow returning each night/morning. Winds become WRLY Fri night, then NRLY immediately behind it Sat morning - continuing to veer NERLY Sat aftn, finally ERLY Sat night. Wind speeds 10-15 kts Wed night could approach 15-20 kts offshore north of Sebastian Inlet, generally 10-15 kts during the day on Thu, then increasing late Thu aftn-evening to 15-20 kts, generally 10-15 kts during the day on Fri, becoming 15-20 kts again late Fri afternoon- night, finally diminishing to 8-12 kts on Sat as the pgrad relaxes.
Initial seas 2-4 ft show little variability thru the period, but could increase slightly during periods of higher sustained winds and locally higher invof any stronger showers or ISOLD lightning storms.

FIRE WEATHER
Issued at 234 PM EDT Tue May 7 2024

Currently-Wednesday... Fire sensitive conditions will continue into Wednesday with RH values forecast to drop into the mid 30s to low 40s Wednesday afternoon across the interior well west of I-95, in addition to, the mid 40s to mid 50s along the coast.
Southwest winds will back south to southeast Wednesday near the coast at 10-15mph.

Thu-Sun...Dry air and increasing temperatures will push afternoon min RHs inland west of I-95 down to 30-40pct Thu-Sun, with some daily variation as a weak cool front passes through late Fri into Sat, which then stalls to the south late Sat. SWRLY winds increase this late-week as the front approaches, becoming breezy/gusty by Fri (15-20 mph with gusts to 30 mph). Will have to monitor for Red Flag conditions given the heightened sensitivity. The Significant Fire Potential will be HIGH both Thu/Fri. Slight rain and lightning chances return Fri onward despite the dry conditions, but greatest chances may be early-mid next week for any potential substantial relief.

CLIMATE
Issued at 234 PM EDT Tue May 7 2024

Record high temperatures this week.

DAB 8-May 94 1967 9-May 94 1978 10-May 94 2008 LEE 8-May 94 2009 9-May 96 2009 10-May 96 2009 SFB 8-May 95 2009 9-May 97 2009 10-May 98 2009 MCO 8-May 98 1915 9-May 98 1915 10-May 98 1916 MLB 8-May 93 1975 9-May 94 1978 10-May 95 1978 VRB 8-May 92 2006 9-May 93 1977 10-May 95 1976 FPR 8-May 94 1967 9-May 95 1967 10-May 96 2008

PRELIMINARY POINT TEMPS/POPS
DAB 70 92 72 94 / 0 10 0 0 MCO 71 96 73 97 / 10 10 0 0 MLB 71 89 72 92 / 0 10 0 0 VRB 69 91 69 94 / 0 10 0 0 LEE 72 95 73 94 / 10 10 0 0 SFB 71 96 73 97 / 10 10 0 0 ORL 71 96 74 97 / 10 10 0 0 FPR 68 90 69 93 / 0 10 0 0

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




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
TRDF1 - 8721604 - Trident Pier, FL 15 mi47 min S 8.9G13 77°F 86°F29.90
41113 - Cape Canaveral Nearshore, FL (143) 18 mi51 min 77°F2 ft
41009 - CANAVERAL 20 NM East of Cape Canaveral, FL 36 mi37 min SSE 14G16 79°F 79°F29.9271°F
SIPF1 47 mi32 min 14 77°F 77°F29.86
GTXF1 - Guana Tolomato Matanzas Reserve, FL 84 mi62 min SW 2.9 78°F 29.9568°F


Wind History for Trident Pier, FL
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KTIX SPACE COAST RGNL,FL 4 sm59 minSSE 107 smClear82°F70°F66%29.91
KTTS NASA SHUTTLE LANDING FACILITY,FL 13 sm51 minSSE 0810 smClear77°F70°F78%29.88
KXMR CAPE CANAVERAL AFS SKID STRIP,FL 15 sm51 minSSE 1010 smClear79°F72°F79%29.87
KCOF PATRICK AFB,FL 21 sm51 minSSE 1110 smClear79°F72°F79%29.88
KMCO ORLANDO INTL,FL 24 sm53 minESE 0810 smMostly Cloudy82°F68°F62%29.90
Link to 5 minute data for KTIX


Wind History from TIX
(wind in knots)
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Tide / Current for Titusville, Indian River, Florida
   
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Titusville
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Tue -- 04:19 AM EDT     4.00 feet High Tide
Tue -- 06:03 AM EDT     Moonrise
Tue -- 06:37 AM EDT     Sunrise
Tue -- 11:23 AM EDT     3.94 feet Low Tide
Tue -- 05:05 PM EDT     3.98 feet High Tide
Tue -- 07:51 PM EDT     Moonset
Tue -- 08:02 PM EDT     Sunset
Tue -- 11:15 PM EDT     3.95 feet Low Tide
Tue -- 11:24 PM EDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Titusville, Indian River, Florida, Tide feet
12
am
4
1
am
4
2
am
4
3
am
4
4
am
4
5
am
4
6
am
4
7
am
4
8
am
4
9
am
4
10
am
3.9
11
am
3.9
12
pm
3.9
1
pm
3.9
2
pm
4
3
pm
4
4
pm
4
5
pm
4
6
pm
4
7
pm
4
8
pm
4
9
pm
4
10
pm
4
11
pm
3.9


Tide / Current for Canaveral Harbor Entrance, Florida
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Canaveral Harbor Entrance
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Tue -- 01:42 AM EDT     -0.17 feet Low Tide
Tue -- 06:02 AM EDT     Moonrise
Tue -- 06:36 AM EDT     Sunrise
Tue -- 07:35 AM EDT     3.71 feet High Tide
Tue -- 01:36 PM EDT     -0.62 feet Low Tide
Tue -- 07:50 PM EDT     Moonset
Tue -- 08:01 PM EDT     Sunset
Tue -- 08:14 PM EDT     5.02 feet High Tide
Tue -- 11:24 PM EDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Canaveral Harbor Entrance, Florida, Tide feet
12
am
0.6
1
am
-0
2
am
-0.1
3
am
0.2
4
am
1
5
am
2.1
6
am
3.1
7
am
3.6
8
am
3.7
9
am
3.2
10
am
2.4
11
am
1.2
12
pm
0.1
1
pm
-0.5
2
pm
-0.6
3
pm
-0.1
4
pm
0.9
5
pm
2.2
6
pm
3.6
7
pm
4.6
8
pm
5
9
pm
4.8
10
pm
4.1
11
pm
2.9


Weather Map
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GEOS Local Image of Southeast   
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Melbourne, FL,





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