Thursday, January18, 2018 L-36.com


Marine Weather and Tides
Hobe Sound, FL

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:10AMSunset 5:53PM Thursday January 18, 2018 8:27 AM EST (13:27 UTC) Moonrise 8:11AMMoonset 7:24PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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- 422 Am Est Thu Jan 18 2018
.small craft advisory in effect through this evening...
Today..North winds 20 knots diminishing to 15 knots in the afternoon. Seas 6 to 9 feet with a dominant period 9 seconds. Choppy on the intracoastal waters.
Tonight..North winds 10 to 15 knots. Seas 5 to 7 feet with a dominant period 9 seconds. A light chop on the intracoastal waters. Slight chance of showers after midnight.
Friday..Northeast winds 10 knots. Seas 3 to 5 feet with a dominant period 9 seconds. A light chop on the intracoastal waters.
Friday night..East winds 5 to 10 knots. Seas 3 to 5 feet. Mostly smooth on the intracoastal waters.
Saturday..East winds 5 to 10 knots. Seas 3 to 4 feet. A light chop on the intracoastal waters. Slight chance of showers.
Saturday night..East winds 5 to 10 knots. Seas 3 to 4 feet. Slight chance of showers.
Sunday..East winds 10 to 15 knots. Seas 2 to 3 feet. Chance of showers.
Sunday night..East winds 10 knots. Seas 3 to 4 feet. Slight chance of showers.
Monday..Southeast winds 10 knots. Seas 3 feet. Slight chance of showers.
AMZ500 Synopsis For Flagler Beach To Jupiter Inlet Out To 60 Nm- 422 Am Est Thu Jan 18 2018
Synopsis..Strong, gusty northerly winds will produce hazardous boating conditions over the local atlantic through this evening, with conditions remaining poor overnight. Winds and seas will improve significantly this weekend as high pressure pushes east from the florida panhandle into the atlantic.
Gulf stream hazards..Northwest to north winds 20 to 25 knots with seas up to 10 feet. The approximate location of the west wall of the gulf stream based on the real time ocean forecast system as of Wednesday january 17th. 41 nautical miles east of ponce inlet. 30 nautical miles east of port canaveral. 27 nautical miles east of sebastian inlet. 17 nautical miles east of fort pierce inlet. 11 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 180925
afdmlb
area forecast discussion
national weather service melbourne fl
425 am est Thu jan 18 2018

Discussion
A freeze watch has been issued for lake and volusia counties for
late tonight early Friday morning...

current through early this morning... Steady northwest of 10-12 mph
(a little stronger over the barrier islands) have cranked up the caa
areawide this morning. 3 am temps have reached the l-m30s across the
freeze warning area, with some u20s in sheltered spots NW of i-4. To
the south, temps are in the u30s with l-m40s confined to the barrier
islands of the treasure coast. In addition to the ongoing advective
freeze wcis have plummeted into the 20s (even 18f at kded) across
the northern half of the cwa, with l30s to the south. All in all the
cold wx forecast warnings look ok, although the cold advection may
actually be overperforming a bit compared to previous events. Some
spots over northern lake NW volusia may actually wind up with a hard
freeze.

Today-tonight... A very cold morning, coupled with slow veering of
winds from NW to a little east of due north this afternoon, will
cause the local diurnal temp rise to be very slow through the 40s
and 50s during the late morning and afternoon. Guidance keeps all
areas, even the far south, below 60f, while the far north struggles
to reach 50f. Expect sunny skies over the interior north, with some
scraps of marine clouds making a push toward the barrier islands
form brevard south around sunset, with a little more cloudiness
possible tonight. In addition, expect some late afternoon ci cs to
filter out the Sun a bit.

Mav ecs MOS guidance has come in colder areawide for tonight ranging
from l30s north, m30s interior central-south, and u30s-l40s for all
but the far SE (m-u40s in coastal saint lucie martin counties). This
necessitates hoisting a freeze watch for lake volusia counties for
late tonight early Friday morning.

Fri-sat... Warming trend commences as low amplitude shortwave ridge
develops aloft, downstream of slow moving gulf coast mid-level
closed low. Forecast will remain dry, with light along-shore wind
component Fri veers to easterly by Sat in response to surface high
working east across the fl panhandle to the western atlantic with
associated ridge axis holding near 30 degrees latitude. MAX temps
fri rebound about 10 degrees from those of today, yet still
averaging some 8-10 degrees below normal for mid january.

Developing onshore flow, albeit weak, will result in large
temperature gradient across CWA Fri night, ranging from the cool
upper 30s near 40 interior NW to the near climo mid 50s along the
se coast. MAX temps trend upward +5 degrees Sat (relative to fri),
which will still be 3-5 degrees below normal.

Sat night-sun night... As mid upper closed low moves north of the
state Sat night sun, associated trough axis will cross the region
as low-mid level moisture gathers upstream over the bahamas and
begins to advect onshore. Will maintain low pop for southern and
eastern portion of CWA Sat night-sun night. Temps will continue to
moderate, with mins returning into the 50s, except lower 60s along
the martin county coast. MAX temps Sun into the 70s areawide,
except several degrees cooler with onshore flow across cold shelf
waters north of the cape.

Mon-wed... Progressive pattern as series of longwave troughs move
toward fl. First trough likely to weak with most all energy
lifting north of CWA late Mon with potential for more southern
latitude influence from following trough toward or beyond mid
week. Much disparity between gfs ECMWF solutions at this stage,
but believe weaking, shallow frontal boundary wind shift will
settle into through CWA Mon night tue, continuing risk of enhanced
cloudiness and isolated scattered showers into mid week. Warmest
day night of forecast period Monday with temps 1-2 categories
above normal, then trending cooler tue-wed as winds shift
northerly behind boundary Tue then veer NE wed.

Aviation Vfr. There will be some potential for local CIGS near
bkn030 kmlb-ksua as marine stratocu tries to advect onshore as low
level flow veers to ne.

Marine Buoy obs show solid 20p25kt across the maor with seas
6-8ft near shore and 9-10ft offshore, which is pretty much on top
of the forecast. Winds seas gradually decrease from late afternoon
through tonight, falling below the 20kt 7ft SCA threshold prior
to midnight. Will still need to maintain a cautionary statement
for the offshore marine legs after the SCA expiration late
tonight.

Fri-mon... Surface high will dominate through most of the period
with generally light winds becoming light to moderate. High center
moves slowly east across fl panhandle Fri Sat then into the
western atlantic Sun and farther seaward mon. Weak front trough
reaches panhandle by late mon. Light N NE flow Fri veers E sat
5-10 kt, with gradient filling slightly Sun to near 10 kt. Flow
veeers SE 10-15 kt Sun well in advance of front. Seas continue to
trend down Fri toward 2-4 ft, 2-3 ft nearshore Sat and up to 4 ft
offshore, then generally 2-3 ft sun-mon. Isolated showers
developing late sat, then isolated-scattered through remainder of
the period.

Fire weather Northwest winds veer to north with speeds dropping
back to 10-12mph. Cold temps and low height of subsidence cap will
keep morning and early afternoon mixing heights pretty low which is
common during strong cold outbreaks. Expect smoke plumes to cap and
spread out at fairly low heights, especially for early-mid morning
ignitions.

Min rh values will drop below 30 percent for the interior central and
northern counties (lake seminole orange osceola inland volusia) with
some l-m20s from around the i-4 corridor N and w.

Fri... Min rh likely to reach 35 percent from lake george to
orlando to st. Cloud westward, with 25-30 percent possible across
lake county. North winds will be very light, with poor dispersion.

Temperature and moisture recovery beyond Friday with no additional
low rh concerns into next week.

Preliminary point temps pops
Dab 50 31 60 42 0 0 0 0
mco 52 36 64 45 0 0 0 0
mlb 55 38 64 49 0 0 0 0
vrb 56 41 65 50 0 10 0 10
lee 51 32 62 41 0 0 0 0
sfb 52 34 62 43 0 0 0 0
orl 52 36 63 45 0 0 0 0
fpr 57 40 66 50 0 10 0 10

Mlb watches warnings advisories
Fl... Wind chill advisory until 9 am est this morning for martin-st.

Lucie.

Freeze watch from late tonight through Friday morning for
coastal volusia county-inland volusia county-northern lake
county-southern lake county.

Freeze warning until 9 am est this morning for coastal volusia
county-inland volusia county-northern lake county-orange-
osceola-seminole-southern lake county.

Wind chill advisory until 10 am est this morning for coastal
volusia county-indian river-inland volusia county-northern
brevard county-northern lake county-okeechobee-orange-
osceola-seminole-southern brevard county-southern lake
county.

Am... Small craft advisory until 4 pm est this afternoon 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 aviation... Cristaldi
long term... .Spratt


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41114 - Fort Pierce, FL (134) 32 mi58 min 65°F7 ft
LKWF1 - 8722670 - Lake Worth, FL 33 mi40 min NW 14 G 18 42°F 69°F1026.5 hPa34°F
SPGF1 - Settlement Point, GBI 66 mi28 min NNE 22 G 24 58°F 1024 hPa (+2.0)
PVGF1 - Port Everglades Channel, FL 69 mi34 min NW 11 G 15 44°F 1025 hPa34°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 mi38 minNNW 107.00 miMostly Cloudy37°F30°F75%1027.1 hPa

Wind History from SUA (wind in knots)
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Last 24hrNW4NW4NW4NW7NW5NW855N5CalmCalm------NW7NW10
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NW8NW7--NW10
1 day agoNE6NE10NE10NE10NE11NE12
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--N10N10N8N8N8N8--N4NW5NW4NW5NW4NW4NW5NW5NW4NW5
2 days agoNW8N10
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NE9NE8NE10NE6

Tide / Current Tables for Gomez, South Jupiter Narrows, Florida
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Gomez
Click for Map
Thu -- 05:20 AM EST     -0.27 feet Low Tide
Thu -- 07:10 AM EST     Sunrise
Thu -- 08:11 AM EST     Moonrise
Thu -- 11:00 AM EST     1.38 feet High Tide
Thu -- 05:46 PM EST     0.03 feet Low Tide
Thu -- 05:51 PM EST     Sunset
Thu -- 07:24 PM EST     Moonset
Thu -- 11:08 PM EST     1.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.10.80.40.1-0.1-0.3-0.20.10.50.91.21.41.31.10.80.50.20.100.20.50.81.11.3

Tide / Current Tables for Sewall Point, St. Lucie River, Florida
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Sewall Point
Click for Map
Thu -- 04:53 AM EST     -0.24 feet Low Tide
Thu -- 07:11 AM EST     Sunrise
Thu -- 08:11 AM EST     Moonrise
Thu -- 10:40 AM EST     0.99 feet High Tide
Thu -- 05:19 PM EST     0.03 feet Low Tide
Thu -- 05:51 PM EST     Sunset
Thu -- 07:24 PM EST     Moonset
Thu -- 10:48 PM EST     0.91 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.50.2-0-0.2-0.2-0.10.10.40.70.910.90.70.50.30.100.10.20.50.70.90.9

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Melbourne, FL (8,2,3,4)
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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.