Sunday, April22, 2018 L-36.com


Marine Weather and Tides
Hobe Sound, 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 6:48AMSunset 7:50PM Sunday April 22, 2018 5:44 PM EDT (21:44 UTC) Moonrise 11:44AMMoonset 12:41AM Illumination 51% Phase: First Quarter Moon; Moon at 7 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- 401 Pm Edt Sun Apr 22 2018
.small craft advisory in effect until 11 pm this evening...
Tonight..Southeast winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Seas 5 to 7 feet with a dominant period 8 seconds. Choppy on the intracoastal waters. Showers likely and slight chance of Thunderstorms.
Monday..Southeast winds 10 to 15 knots. Seas 4 to 6 feet with a dominant period 8 seconds. A moderate chop on the intracoastal waters. Showers and chance of Thunderstorms.
Monday night..South winds 10 to 15 knots. Seas 3 to 5 feet with a dominant period 8 seconds. A light chop on the intracoastal waters. Showers likely and slight chance of Thunderstorms.
Tuesday..Southwest winds 10 to 15 knots. Seas 3 to 4 feet. A moderate chop on the intracoastal waters. Showers likely and chance of Thunderstorms.
Tuesday night..Southwest winds 5 to 10 knots becoming west 10 to 15 knots after midnight. Seas 3 to 4 feet. A light chop on the intracoastal waters. Chance of showers in the evening, then slight chance of showers after midnight.
Wednesday..West winds 5 to 10 knots. Seas 3 to 4 feet. A light chop on the intracoastal waters.
Wednesday night..West winds 5 to 10 knots. Seas 2 to 3 feet.
Thursday..West winds 5 to 10 knots. Seas 2 to 3 feet.
Thursday night..West winds 5 to 10 knots. Seas 2 to 3 feet.
Friday..West winds 5 to 10 knots becoming southwest 5 knots in the afternoon. Seas 2 to 3 feet. Slight chance of showers.
AMZ500 Synopsis For Flagler Beach To Jupiter Inlet Out To 60 Nm- 401 Pm Edt Sun Apr 22 2018
Synopsis..A high pressure ridge centered off the mid atlantic coast will shift slowly east ahead of an area of low pressure and its associated frontal trough early this week. The trough will pass through the local waters on Tuesday, with high coverage of showers and Thunderstorms ahead of it. Poor to hazardous boating conditions will continue through Monday as a fresh to moderate east breeze veers to southeast. Winds will gradually weaken to a moderate breeze, veering to south late Monday, southwest on Tuesday, and west on Wednesday and Thursday.
Gulf stream hazards..East winds near 20 knots with seas 6 to 8 feet. The approximate location of the west wall of the gulf stream based on the real time ocean forecast system as of Sunday april 22nd. 39 nautical miles east of ponce inlet. 28 nautical miles east of port canaveral. 24 nautical miles east of sebastian inlet. 15 nautical miles east of fort pierce inlet. 9 nautical miles east of saint lucie inlet.

7 Day Forecast for Marine Location Near Hobe Sound, FL
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location: 27.09, -80.14     debug


Area Discussion for - Melbourne, FL
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Fxus62 kmlb 221950
afdmlb
area forecast discussion
national weather service melbourne fl
350 pm edt Sun apr 22 2018

Discussion
Current tonight...

bands of showers with embedded stronger storms have increased in
coverage intensity over the past couple of hours, especially
along offshore the treasure and space coasts. Even a few rotating
supercells developed offshore martin county since mid to late
morning. Short range guidance focuses late afternoon and evening
activity near the east coast and over the atlantic, which looks
reasonable given current radar imagery. Should see a slow decrease
in coverage late into the overnight as onshore flow starts to veer
more to the SE (and even sse across the north late) and the flow
aloft remains weakly divergent. Sultry mins in the u60s-l70s once
again.

Monday... Dawdling mid-upper level low over the mid-ms valley will
sluggishly make its way east toward the tn oh valleys late in the
day. Attendant surface trough very weak front will move across the
area through the afternoon and early evening. Given the northward
advection of very high pwat air ahead of it, coupled with a modest
increase in upper divergence and perhaps a diffuse attempt at a
wcsb, fully expect another afternoon with widespread coverage of
showers along with scattered ts. Frequent c g lightning, locally
gusty winds and torrential rainfall will accompany this activity.

Max temps in the 80-85f range
00z Tue - 12z wed...

rex-type blocking pattern extending from the great lakes to the mid
south will break down as an h85-h30 short wave trof over the pac nw
pushes acrs the NRN tier states and shunts the anticyclone from the
great lakes to the new england mid atlc coast by sunset Monday.

Southward, the well dvlpd cyclone of the rex-block over the mid
south will creep slowly eastward into the tn oh river valleys by
daybreak tue, then will accelerate to the mid atlc carolina coast by
daybreak Wed as it is picked up by the aforementioned pac short wave
trof.

Slow evolution of the wx pattern will maintain a deep S swrly flow
pattern acrs central fl thru sunset tue. These winds will tap an
area of enhanced h100-h70 moisture over the NW carib, while high
moisture pooling within the warm sector of the cyclone over the
central gomex works its way eastward. Ahead of the front, pwat
values expected to remain btwn 1.50"-1.75", while a mid lvl thermal
trof drops h50 temps to arnd -13c. Resulting mid lvl lapse rates
bcmg moderately steep with readings btwn 6.5-7.0c km. Sct-nmrs
shras tsras until the front passes thru Tue tue night. Day 3
convective outlook has central fl under general tsras, but
strong LCL svr wx cannot be ruled out.

Post frontal winds bcmg W NW with precip ending along and north of i-
4 arnd sunset tue, and over the treasure coast lake-o region by
daybreak wed. Strong prefrontal warm air advection and mcldy skies
will keep min temps Tue mrng in the m u60s, MAX temps Tue aftn
generally in the m80s. Minimal cool air advection with the cold
front Tue night... Min temps in the l m60s.

Extended... (prev disc)
post frontal drying through the middle of the week in the presence
of weak high pressure. Not much in the way of cooling effects...

temps generally near avg. Look for an appreciable period of offshore
flowing wind mid-late week. Models seem to suggest a series of
successive (mostly) dry boundary passages as reinforcement later in
the period as the mid-upper pattern shows short-wave trough moving
through the southeast on Thu and then a more significant trough sat.

However, moisture will be lacking for mentioning any rain chances
greater than 20 percent, at least until greater certainty is
acquired.

Aviation
Sct nmrs showers and a few thunderstorms are ongoing from ksua-kdab,
and will continue through this evening. These showers and storms are
producing ifr conditions with 1-2sm vsbys and bkn010-020 cigs. After
23 00z isolated showers will still be possible along the coast, thus
have kept vcsh at all coastal terminals through the end of the
forecast period. The latest visible satellite imagery shows clouds
clearing across the interior, thus will keepVFR conditions for
interior terminals. However, some showers and storms capable of
producing ifr conditions are still possible, so I have included a
tempo group for kmco-ksfb-kism through 22 22z.

Marine
Tonight-Monday... Wave model guidance shows good continuity with the
previous forecast of winds and seas gradually veering to SE late
tonight and southerly by Monday afternoon. Wind seas gradually abate
to 15-20kt by late tonight, and about 12-15kt Monday afternoon as
the surface pressure gradient gradually loosens. SCA conditions will
ease near the coast by late this evening, and offshore by mid
morning Monday. Seas 6-8ft early tonight, subsiding to 4-6ft Monday
afternoon.

Mon night... Poor boating conds bcmg marginal by daybreak as the lcl
pgrad slackens ahead of an approaching cold front. Moderate to fresh
s SE breeze bcmg gentle to moderate with seas 3-5ft nearshore and 4-
6ft offshore... Subsiding to 3-4ft nearshore and 4-5ft offshore.

Dominant pds arnd 8sec except south of ft. Pierce inlet where the
shadow of grand bahama island will keep pds btwn 5-6sec. Shras
likely with a slgt chc of tsras.

Tue Tue night... Marginal boating conds as sfc bndry lyr winds veer
to SW ahead of the front thru the day, then to W NW overnight as the
front presses thru central fl. Seas subsiding to 2-4ft nearshore and
3-5ft offshore, but with increasing short pd chop as the atlc waters
become fetch protected. Nmrs shra chc tsras tue... Ending from N to s
aft sunset in the wake of the front.

Wed-thu... Post-frontal westerlies with a light to gentle breeze
areawide, bcmg onshore near the coast each aftn as the weak pgrad
and strong sfc heating on land promotes the formation of the east
coast sea breeze. Seas 2-3ft nearshore and 3-4ft offshore thru thu
aftn, subsiding to 2-3ft areawide Thu night.

Fri-fri night... Weak frontal passage early mrng thru late aftn will
have minimal impact on LCL seas. Light to gentle westerly breeze,
meandering btwn W NW early to S SW in the aftn evng, before
shifting back to NW overnight. Seas 2-3ft areawide.

Preliminary point temps pops
Dab 68 80 67 83 70 80 30 60
mco 67 84 68 85 50 70 30 60
mlb 70 82 68 84 70 80 50 70
vrb 70 82 68 83 70 80 60 70
lee 68 84 68 84 50 60 30 60
sfb 66 83 67 85 50 70 30 60
orl 68 84 68 85 50 70 30 60
fpr 70 82 69 83 60 80 60 70

Mlb watches warnings advisories
Fl... None.

Am... Small craft advisory until 11 pm edt this evening for flagler
beach to volusia-brevard county line 0-20 nm-sebastian
inlet to jupiter inlet 0-20 nm-volusia-brevard county line
to sebastian inlet 0-20 nm.

Small craft advisory until 11 am edt Monday for flagler beach to
volusia-brevard county line 20-60 nm-sebastian inlet to
jupiter inlet 20-60 nm-volusia-brevard county line to
sebastian inlet 20-60 nm.

Short term... Cristaldi
aviation... ..Rodriguez
long term impact wx... Bragaw smith


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41114 - Fort Pierce, FL (134) 32 mi44 min 75°F5 ft
LKWF1 - 8722670 - Lake Worth, FL 33 mi44 min SE 14 G 17 77°F 78°F1017.5 hPa (-2.1)75°F
SPGF1 - Settlement Point, GBI 66 mi44 min ESE 13 G 15 77°F 1017.4 hPa (-1.7)
PVGF1 - Port Everglades Channel, FL 69 mi44 min E 4.1 G 8 82°F 1016.4 hPa (-2.2)72°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, FL8 mi54 minESE 10 G 157.00 miThunderstorm in Vicinity77°F73°F89%1017.3 hPa

Wind History from SUA (wind in knots)
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Last 24hrE14
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1 day agoE9
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E8E5E6--E7E7E8E9E7E8E7E7E10
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2 days ago--E10
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SE6SE6----SW3SW3CalmCalmW3NW3N5N5N4N4N4NE5NE7NE7NE7
G14
NE7
G14
NE10
G16
NE10
G16

Tide / Current Tables for Gomez, South Jupiter Narrows, Florida
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Gomez
Click for Map
Sun -- 01:40 AM EDT     Moonset
Sun -- 04:03 AM EDT     1.48 feet High Tide
Sun -- 06:49 AM EDT     Sunrise
Sun -- 10:55 AM EDT     0.25 feet Low Tide
Sun -- 12:44 PM EDT     Moonrise
Sun -- 04:20 PM EDT     1.38 feet High Tide
Sun -- 05:46 PM EDT     First Quarter
Sun -- 07:48 PM EDT     Sunset
Sun -- 11:23 PM EDT     -0.05 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.611.31.51.41.210.70.50.30.20.40.60.91.21.41.31.20.90.60.30.1-0

Tide / Current Tables for Sewall Point, St. Lucie River, Florida
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Sewall Point
Click for Map
Sun -- 01:41 AM EDT     Moonset
Sun -- 03:43 AM EDT     1.06 feet High Tide
Sun -- 06:49 AM EDT     Sunrise
Sun -- 10:28 AM EDT     0.21 feet Low Tide
Sun -- 12:44 PM EDT     Moonrise
Sun -- 04:00 PM EDT     0.99 feet High Tide
Sun -- 05:46 PM EDT     First Quarter
Sun -- 07:49 PM EDT     Sunset
Sun -- 10:56 PM EDT     -0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.60.811.110.80.60.40.30.20.20.40.60.80.910.90.80.60.30.10-0

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Southeast    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 (17,4,5,8)
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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.