Friday, April20, 2018 L-36.com


Marine Weather and Tides
Palm City, FL

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:49AMSunset 7:49PM Friday April 20, 2018 4:29 PM EDT (20:29 UTC) Moonrise 9:45AMMoonset 11:44PM Illumination 29% Phase: Waxing Crescent; Moon at 5 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- 242 Pm Edt Fri Apr 20 2018
.small craft advisory in effect from Saturday morning through Sunday afternoon...
Tonight..East to northeast winds 10 to 15 knots. Seas building to 3 to 5 feet with a dominant period 9 seconds. A light chop on the intracoastal waters. Slight chance of showers after midnight.
Saturday..East winds 20 knots. Seas 6 to 8 feet with a dominant period 8 seconds. Choppy on the intracoastal waters. Chance of showers.
Saturday night..East winds 15 to 20 knots. Seas 6 to 9 feet with a dominant period 8 seconds. Choppy on the intracoastal waters. Chance of showers.
Sunday..East winds 15 to 20 knots. Seas 6 to 8 feet. Choppy on the intracoastal waters. Showers likely and slight chance of Thunderstorms.
Sunday night..Southeast winds 15 to 20 knots. Seas 5 to 7 feet. Choppy on the intracoastal waters. Showers likely and slight chance of Thunderstorms.
Monday..South winds 10 to 15 knots becoming southeast 15 to 20 knots in the afternoon. Seas 5 to 7 feet. Choppy on the intracoastal waters. Showers likely and chance of Thunderstorms.
Monday night..South winds 10 to 15 knots. Seas 4 to 5 feet. Showers likely and slight chance of Thunderstorms.
Tuesday..South winds 10 knots. Seas 3 to 5 feet. Chance of showers and slight chance of Thunderstorms.
Tuesday night..West winds 10 to 15 knots. Seas 3 to 5 feet. Chance of showers.
Wednesday..West winds 5 to 10 knots. Seas 3 to 4 feet.
AMZ500 Synopsis For Flagler Beach To Jupiter Inlet Out To 60 Nm- 242 Pm Edt Fri Apr 20 2018
Synopsis..A weak cold front sagging south into central florida will stall and wash out over the area tonight. Boating conditions will deteriorate tonight through this weekend as a high pressure ridge builds off the mid atlantic coast, with a fresh northeast to east breeze developing and veering to southeast by Sunday night. Winds will gradually weaken as they veer to south Monday night, southwest Tuesday and west on Wednesday.
Gulf stream hazards..East-northeast winds increasing as high as 20 to 25 knots with seas building to 6 to 9 feet after midnight. The approximate location of the west wall of the gulf stream based on the real time ocean forecast system as of Wednesday april 18th. 39 nautical miles east of ponce inlet. 29 nautical miles east of port canaveral. 22 nautical miles east of sebastian inlet. 13 nautical miles east of fort pierce inlet. 8 nautical miles east of saint lucie inlet.

7 Day Forecast for Marine Location Near Palm City, FL
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location: 27.17, -80.26     debug


Area Discussion for - Melbourne, FL
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Fxus62 kmlb 201837
afdmlb
area forecast discussion
national weather service melbourne fl
235 pm edt Fri apr 20 2018

Discussion
Current-tonight... Forecast evolving about as expected. Showers
which have approached the volusia coastline has fizzled out thus
far, with just a trace of rain in a few light sprinkles. As the
surface ridge to the north builds southward, onshore (ne to ene)
flow will freshen, which will in turn pull increasing low level
moisture onshore the fl east coast. Rain chances gradually increase
to 20-30 percent with highest chances north inland, and borderline
breezy (near 15 mph) conditions for the volusia brevard barrier
islands. Mins generally in the 60s with a few l70s confined to the
immediate coast.

Saturday... Moderately breezy onshore flow becomes well-established
areawide with residual frontal moisture convergence band situated
over the central cwa. Rain chances 40-50 percent for most areas,
save for likely pops (60) centered around brevard county, where the
consensus of global mesoscale model guidance focusing precip higher
qpf amounts. Clouds will hold down maxes to m70s coastal volusia to
~80f kissimmee-fort pierce, with l80s confined to interior south.

Sunday-Monday... An elevated low level SE flow continue to increase
moisture across central florida into Sunday as a cutoff low aloft
shifts sfc low and front eastward across the deep south and gulf of
mexico. Onshore moving showers should increase in coverage through
Sunday, with increasing instability potentially leading to a few
storms in the afternoon. Rain chances from 50-60 percent on Sunday
then increase up to 70-80 percent into Monday, as low pressure and
an associated front near the area. Models continue to be in fairly
good agreement indicating greatest coverage of showers and storms
into Monday afternoon ahead of this boundary. Some uncertainty still
exists in overall instability and shear with they system, but a few
stronger storms at least looks possible across the area.

Despite greater cloud cover and increasing rain chances,
temperatures should continue to warm through the period in the
veering low level flow. Highs will range from the upper 70s to low
80s on Sunday to low to mid 80s on Monday. Lows overnight will
remain mild in the 60s.

Tuesday-Friday (previous discussion)... Mid level low ejects nne on
Tuesday and allow deeper moisture to pull eastward over the atlantic
by Tuesday night. Drier air begins to move toward the area behind a
front into mid week. Will continue chance pops into Tuesday before
deep layer dry air should end shower chances by wed. Highs are
expected in the lower to mid 80s Tuesday and then will only drop a
degree or two Wed with a drier airmass expected allowing for more
sunshine.

Long range models are varied showing the possibility of another
shortwave trough moving toward the southeast u.S. And florida in the
wake of the early week system late next week. At this time will keep
Thursday dry and introduce low shower chances to end next week.

Temps are expected to be near or just slightly below seasonal norms.

Aviation Nne onshore flow along the volusia coast will allow for
MVFR CIGS near bkn020 to persist @kdab through 03z. High resolution
model guidance indicates NE flow will continue through at least
21 12z, so MVFR deck may need to be extended later there.VFR conds
will persist at klee-ksfb-kmco although aVFR bkn035-040 deck will
continue through tonight withVFR bkn035-040. While occasional MVFR
bkn030 may occur at those interior sites, probabilities are too low
to include in tafs. Overnight, guidance shows MVFR CIGS developing
and affecting all interior terminals and kdab, thus have included a
tempo group for bkn025 ceilings from 21 09z-12z. Elsewhere,VFR
conditions with gusty east winds will continue through tomorrow
morning from ktix-ksua. Winds will increase across the entire area
after 21 14z, with sustained winds around 15-18 knots and gusts from
20-25 knots.

Marine Tonight-Saturday... Increasing onshore (ne-ene) flow will
spread southward overnight, veering to east on Saturday. Winds up
to 20kt near shore and 20-25kt offshore will allow seas to build
up to 5-7ft near shore and 8-9ft offshore. Late morning decision
to push SCA start time to 8pm for the central legs, but left at
8am Saturday south of sipf1. Nothing has changed to warrant making
any further tweaks along that line.

Sunday-Wednesday... Poor to hazardous marine conditions will continue
through Sunday into early next week. Through Sunday a fresh onshore
breeze and long easterly fetch keeps will keep seas elevated up to 7
to 8 feet.

Winds Monday veer to the s-se ahead of an approaching low and
associated front with speeds 15-20 knots and then become southwest
10-15 knots into tue. Numerous to widespread showers and scattered
storms are expected Monday, some may be strong. Seas will remain
elevated across the offshore waters up to 7 to 8 feet Monday and
then decreasing to 5 to 7 feet by Tuesday.

Fire weather No critical rh or wind issues are expected through
the 5-day period.

Preliminary point temps pops
Dab 67 75 67 76 30 40 40 50
mco 67 79 67 81 20 50 40 50
mlb 71 78 70 80 30 60 40 60
vrb 70 79 70 80 20 50 40 60
lee 65 79 65 81 20 50 30 60
sfb 66 77 65 80 30 50 40 50
orl 66 78 66 80 30 50 40 50
fpr 70 80 69 80 20 50 40 60

Mlb watches warnings advisories
Fl... None.

Am... Small craft advisory until 4 pm edt Sunday for flagler beach
to volusia-brevard county line 0-20 nm-flagler beach to
volusia-brevard county line 20-60 nm.

Small craft advisory from 8 pm this evening to 4 pm Sunday
for volusia-brevard county line to sebastian inlet 0-20 nm-
volusia-brevard county line to sebastian inlet 20-60 nm.

Small craft advisory from 8 am Saturday to 4 pm Sunday for
sebastian inlet to jupiter inlet 0-20 nm-sebastian inlet to
jupiter inlet 20-60 nm.

Short term... Cristaldi
long term impact wx... Weitlich
aviation... Rodriguez


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41114 - Fort Pierce, FL (134) 26 mi30 min 75°F2 ft
LKWF1 - 8722670 - Lake Worth, FL 40 mi42 min ENE 11 G 12 77°F 80°F1019.5 hPa72°F
SIPF1 49 mi45 min ENE 8 73°F 74°F1020 hPa
SPGF1 - Settlement Point, GBI 74 mi30 min NNE 8 G 8.9 78°F 1019 hPa (-1.3)
PVGF1 - Port Everglades Channel, FL 75 mi90 min E 7 G 9.9 80°F 1018.4 hPa (-1.6)69°F

Wind History for Lake Worth Pier, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Witham Field Airport, FL2 mi43 minENE 10 G 167.00 miFair81°F68°F66%1019.3 hPa
Fort Pierce, St. Lucie County International Airport, FL24 mi37 minE 910.00 miFair80°F68°F67%1018.6 hPa

Wind History from SUA (wind in knots)
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Last 24hrE10
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SE6SE6----SW3SW3CalmCalmW3NW3N5N5N4N4N4NE5NE7NE7NE7
G14
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1 day agoE8SE8SE7SE7SE4----S3S4S3S4W5W4W4SW3CalmW6W8W8--S4E9E10
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2 days agoNE10
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NE10CalmCalmCalm--CalmCalmCalmCalmCalmCalmCalmCalm3444E6E6E8NE8NE8

Tide / Current Tables for South Fork, St. Lucie River, Florida
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South Fork
Click for Map
Fri -- 02:57 AM EDT     1.16 feet High Tide
Fri -- 06:51 AM EDT     Sunrise
Fri -- 09:48 AM EDT     0.10 feet Low Tide
Fri -- 10:44 AM EDT     Moonrise
Fri -- 03:08 PM EDT     1.06 feet High Tide
Fri -- 07:48 PM EDT     Sunset
Fri -- 10:07 PM EDT     -0.18 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.81.11.21.10.90.70.50.30.10.10.20.40.711.110.90.60.30.1-0.1-0.2-0.1

Tide / Current Tables for North Fork, St. Lucie River, Florida
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North Fork
Click for Map
Fri -- 03:03 AM EDT     1.23 feet High Tide
Fri -- 06:52 AM EDT     Sunrise
Fri -- 09:42 AM EDT     0.08 feet Low Tide
Fri -- 10:44 AM EDT     Moonrise
Fri -- 03:13 PM EDT     1.12 feet High Tide
Fri -- 07:48 PM EDT     Sunset
Fri -- 10:05 PM EDT     -0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.81.11.21.210.70.50.20.10.10.20.50.811.11.10.90.60.30-0.2-0.2-0.1

Weather Map and Satellite Images
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wmap_A
GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Melbourne, FL (16,3,4,5)
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Ground Weather Radar Station Melbourne, FL
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Disclaimer:
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 numerious 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.