Thursday, April19, 2018 L-36.com


Marine Weather and Tides
Butler Beach, 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 6:51AMSunset 7:55PM Thursday April 19, 2018 5:44 AM EDT (09:44 UTC) Moonrise 8:49AMMoonset 10:52PM Illumination 17% Phase: Waxing Crescent; Moon at 4 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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AMZ454 Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 435 Am Edt Thu Apr 19 2018
.small craft advisory in effect from late tonight through late Friday night...
Today..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a moderate chop.
Tonight..West southwest winds 5 to 10 knots becoming northwest 10 to 15 knots late in the evening, then becoming north northeast 20 to 25 knots after midnight with occasional gusts to around 35 knots. Seas 2 to 3 feet building to 3 to 5 feet with occasional seas up to 6 feet after midnight. Dominant period 6 seconds. Inland waters a moderate chop.
Friday..Northeast winds 20 to 25 knots with occasional gusts to around 35 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Inland waters rough.
Friday night..East northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 6 seconds. Inland waters choppy.
Saturday..East northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters choppy. A slight chance of showers.
Saturday night..East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters choppy. A slight chance of showers.
Sunday..East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters choppy. A chance of showers and a slight chance of Thunderstorms.
Sunday night..East southeast winds 20 to 25 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Inland waters rough. Showers likely and a slight chance of Thunderstorms.
Monday..Southeast winds 20 to 25 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters choppy. Showers and a chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 435 Am Edt Thu Apr 19 2018
Synopsis.. High pressure south of the region will shift eastward today. A dry cold front will move through this evening with an abrupt increase in northeasterly winds after midnight. Another large area of high pressure will build north of the region Friday into the weekend. A low pressure system will approach from the west Sunday night into Monday.

7 Day Forecast for Marine Location Near Butler Beach, FL
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location: 29.77, -81.26     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 190813
afdjax
area forecast discussion
national weather service jacksonville fl
413 am edt Thu apr 19 2018

Near term through tonight
A cold front will slow to a crawl just north of the area today
and then eventually get a nice shove southward as strong high
pressure over the northern plains builds southeastward. The front
will accelerate southward across our forecast area this evening.

Forcing will be rather meager along the moisture-starved frontal
boundary, thus no measurable rainfall is expected.

Southwest flow ahead of the front should hang on long enough into
the afternoon to support a sneaky warm day today for locations
south and east of a line from jesup to valdosta. A few slivers of
stratus clouds this morning will need a few hours of april
sunshine to burn off, but we're still anticipating enough late
morning and afternoon Sun to push temps well into the 80s. The
southwest flow will be strong enough to prevent an atlantic coast
seabreeze, so even the beaches will warm up quite a bit. The
warmest temperatures are expected along the i-95 corridor, and our
temperature forecast will reflect the warmest side of guidance,
with some upper 80s certainly possible.

Surface winds tonight will quickly veer to the northeast with
windy conditions expected to develop abruptly at the beaches
after midnight. Winds will approach wind advisory territory at
the beaches prior to sunrise on Friday with sustained northeast
winds increasing to 20 to 25 mph with gusts up to around 35 mph.

Short term Friday through Saturday night
Friday... Strong high pressure ridge builds into the carolinas with
a breezy inland windy coast NE flow across the region. Skies will
be mostly sunny across SE ga while the onshore flow will continue
partly to mostly cloudy skies across NE fl. Temps will be quite a
bit cooler with highs about 20 degrees lower along the coast only
in the mid upper 60s and into the lower middle 70s over further
inland areas. The onshore flow may kick off a few light showers
along the coast south of st augustine but rain chances still less
than 20% as the airmass remains fairly dry. The NE winds will
reach the 15-25g35 mph range at the coast and will be close to
wind advisory levels, with lesser winds around 15g25 mph further
inland.

Friday night... Strong high pressure remains north of the region
with breezy e-ne flow at the coast at 15g25 mph and 5-10 mph
further inland. Mostly clear skies will remain across SE ga with
lows in the upper 40s near 50. Further south across NE fl expect
partly cloudy skies to continue with enough atlc moisture to
produce a few light showers along the coast south of st
augustine. Milder overnight lows in the 50s inland NE fl and near
60 along the coast in the onshore flow.

Saturday... High pressure over the carolinas nudges slightly
offshore with sfc winds becoming easterly with SE steering flow
just above the surface. This will increase cloud cover through the
day with skies becoming partly cloudy SE ga and mostly cloudy ne
fl with chance of showers increasing slightly along the NE fl
coast. East winds 10-15g20-25 mph inland and 15-20g25-30 mph
along the coast. Highs nudge slightly milder, near 70 at the coast
and mid upper 70s inland.

Saturday night... Southeast steering flow continues to increase
moisture and lift old frontal boundary northward up the fl
peninsula with mostly cloudy skies area-wide and at least widely
scattered showers possible area-wide after midnight. Cloud cover
keeps mild temps overnight in the upper 50s SE ga and lower middle
60s NE fl.

Long term Sunday through Wednesday
Sunday... Energy lift assocd with approaching low pressure at the
surface aloft along the north gomex will increase rain chances
through the day into Sunday night with at least numerous showers
and embedded storms expected with locally heavy rainfall as warm
front lifts into the region and energy gets focused along this
boundary. Highs likely only in the lower middle 70s with lows in
the lower middle 60s. The onshore flow will remain breezy windy
along the coast.

Monday... Low tracks along the frontal boundary from the panhandle
into south ga by Monday night with a mid upper level dry slot
punching in from the SW across the fl peninsula which will shift
the focus of the heavy rainfall northward into SE ga by Monday
night. Storm total rainfall by Tuesday morning expects to be at
least in the 1"-3" range with locally higher amounts, best chances
for heavy rainfall will be across SE ga and atlc coastal
counties. Numerous showers and embedded storms area-wide Monday
will become a bit more scattered Monday night as mid upper level
dry slot shifts into the region. Highs will be in the
lower middle 70s, and lows in the 60s.

Tuesday Wednesday... Confidence decreases in this period as low
pressure cut off low over south ga should kick NE into the
carolinas, but some ensemble members stall or move the low out
slower. For now advertising scattered showers isolated storms on
Tuesday with drying conditions on Wednesday. Temps remain with
highs in the 70s lows in the 50s. Heavy rainfall threat should
come to an end Monday night with more light moderate lingering
rainfall amounts on Tuesday.

Aviation
MainlyVFR conditions are expected, but a brief period of ifr
ceilings in patches of low stratus will be possible through
sunrise this morning. Southwest winds will increase today and
become gusty. Winds will become northerly tonight behind a cold
front with some gusts possible, particularly along the coast
after midnight.

Marine
Southwest winds 10 to 15 knots through this evening then rapidly
changing conditions expected after midnight tonight as a strong
surge of northeast winds quickly pushes south across the waters.

Northeast winds 20 to 25 knots will gust up to around 35 knots at
times late tonight through Friday. Seas will build to as high as 6
to 9 feet across the offshore waters. Small craft advisories have
been hoisted for all southeast georgia and northeast florida
coastal waters.

On Saturday, winds will become more easterly and subside a
little, with speeds closer to 20 knots. Seas will remain elevated
and small craft advisory conditions will remain in place across
the offshore zones through the upcoming weekend. Winds seas will
begin to increase again Sunday afternoon as a low pressure system
approaches from the west northwest. Headlines will need to be
extended through at least Monday night and this system will also
bring potential for storms and heavy rainfall.

Rip currents: low risk today and then high risk likely on Friday
with strong onshore winds and building surf.

Fire weather
Gusty west winds expected today at 15-20g30 mph but humidities
should remain just above critical levels in the 30-40% range so no
headlines expected.

Preliminary point temps pops
Amg 82 48 72 46 10 0 0 0
ssi 85 57 65 56 10 0 0 0
jax 88 58 69 54 10 10 0 0
sgj 86 63 69 60 0 10 10 0
gnv 85 57 74 55 10 0 0 0
ocf 84 59 76 57 0 10 0 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory from 2 am Friday to 3 am edt Monday for
waters from altamaha sound ga to fernandina beach fl from
20 to 60 nm-waters from fernandina beach to st. Augustine
fl from 20 to 60 nm-waters from st. Augustine to flagler
beach fl from 20 to 60 nm.

Small craft advisory from 2 am Friday to 4 am edt Saturday for
coastal waters from altamaha sound to fernandina beach fl
out 20 nm-coastal waters from fernandina beach to st.

Augustine fl out 20 nm-coastal waters from st. Augustine to
flagler beach fl out 20 nm.

Shuler hess


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 6 mi45 min WSW 5.1 G 7 62°F 66°F1017.5 hPa (-0.6)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 8 mi60 min SSW 1.9 59°F 1019 hPa53°F
RCYF1 16 mi45 min 71°F
41117 19 mi53 min 67°F2 ft
LTJF1 43 mi45 min 63°F 57°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 44 mi45 min WSW 7 G 8 63°F 67°F1016.9 hPa (+0.5)
JXUF1 44 mi45 min 68°F
BLIF1 45 mi45 min W 5.1 G 7 65°F 1017.6 hPa (+0.4)64°F
DMSF1 45 mi45 min 69°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL14 mi49 minSW 410.00 miFair59°F53°F81%1017.4 hPa

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Last 24hrW4SW3CalmW5SW7W7SW8W73SE11SE12S116SE4S5S3SW3SW3W5S4SW5S7SW6SW4
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Tide / Current Tables for Crescent Beach, Matanzas River, Florida
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Crescent Beach
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Thu -- 12:30 AM EDT     4.69 feet High Tide
Thu -- 06:54 AM EDT     Sunrise
Thu -- 07:11 AM EDT     -0.25 feet Low Tide
Thu -- 09:49 AM EDT     Moonrise
Thu -- 12:54 PM EDT     3.79 feet High Tide
Thu -- 07:15 PM EDT     -0.31 feet Low Tide
Thu -- 07:54 PM EDT     Sunset
Thu -- 11:51 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.64.642.91.910.2-0.2012.133.63.83.42.51.50.70.1-0.3-0.10.92.33.4

Tide / Current Tables for St. Augustine Beach, Florida
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St. Augustine Beach
Click for Map
Thu -- 05:13 AM EDT     -0.16 feet Low Tide
Thu -- 06:54 AM EDT     Sunrise
Thu -- 09:49 AM EDT     Moonrise
Thu -- 11:27 AM EDT     4.46 feet High Tide
Thu -- 05:16 PM EDT     -0.26 feet Low Tide
Thu -- 07:54 PM EDT     Sunset
Thu -- 11:50 PM EDT     5.44 feet High Tide
Thu -- 11:51 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.142.51.20.3-0.100.71.72.83.84.44.33.62.41.10.2-0.2-0.10.61.734.35.2

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 Jacksonville, FL (5,6,7,8)
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Ground Weather Radar Station Jacksonville, 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.