Friday, June23, 2017 L-36.com


Marine Weather and Tides
Crescent Beach, FL

Version 3.4
What's New / NOTES
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 6:24AMSunset 8:29PM Friday June 23, 2017 6:09 AM EDT (10:09 UTC) Moonrise 5:02AMMoonset 7:06PM Illumination 1% Phase: New Moon; Moon at 29 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- 335 Am Edt Fri Jun 23 2017
Today..South southeast winds 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a moderate chop.
Tonight..South winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 5 seconds. Inland waters a moderate chop.
Saturday..South southeast winds 15 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a moderate chop.
Saturday night..South winds 15 to 20 knots becoming southwest 5 to 10 knots in the morning. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 5 seconds. Inland waters a moderate chop. A slight chance of showers and Thunderstorms in the evening.
Sunday..South winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop. Showers and Thunderstorms likely.
Sunday night..South winds 10 to 15 knots becoming west southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Monday..North winds 5 to 10 knots becoming east northeast in the afternoon. Seas 2 to 3 feet. Inland waters smooth. Showers likely and a slight chance of Thunderstorms.
Monday night..South southeast winds around 5 knots becoming west after midnight. Seas 1 to 2 feet. Inland waters smooth. A chance of showers and a slight chance of Thunderstorms.
Tuesday..North winds 5 to 10 knots becoming east northeast in the afternoon. Seas 2 to 3 feet. Inland waters a light chop. Showers likely and a slight chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 335 Am Edt Fri Jun 23 2017
Synopsis.. Surface ridge axis will shift south into central florida through the weekend. Southerly flow expected through the weekend with scec headlines possible with the nocturnal surges this evening and again tomorrow evening. A frontal boundary will push into the region Monday and stall across or just south of the region through the middle of the week.

7 Day Forecast for Marine Location Near Crescent Beach, FL
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location: 29.72, -81.24     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 230705
afdjax
area forecast discussion
national weather service jacksonville fl
305 am edt Fri jun 23 2017

Near term through tonight
Strong upper ridging will build in from the east today. Most areas
will see a prolonged period of increased sunshine due to
subsidence aloft. Hot and humid conditions will prevail with heat
indices topping out at 100-105 degrees this afternoon. The
seabreeze will bring some relief this afternoon near the coast,
but even the beaches should top out around 90 prior to the
seabreeze moving inland.

Some lingering low to mid level moisture over inland southeast
georgia will be good enough to support scattered showers storms
across areas generally north of a line from roughly jesup to
valdosta. With the upper ridge and warm temps aloft, this
activity will be on the tame side and no severe weather is
expected. Elsewhere, little more than a few spotty and brief
showers are expected. We will go with a slight chance to account
for this possibility late this afternoon into this evening along
the highway 301 corridor as the two seabreezes collide. But this
is not expected to amount to much.

Tonight will be another muggy evening with overnight temperatures
remaining above normal.

Short term Sat through Mon night...

synopsis... Hot this weekend with elevated heat index values near
105 deg. Below normal rain chances sat, then rain chances
increase Sun especially across SE ga ahead of an approaching
front.

Sat... Hot and mostly dry conditions expected due to ridge axis
across south florida lifting northward across north-central
florida. Isolated precip expected to first begin to edge inland
toward the i-75 corridor with the gulf coast sea breeze by midday,
spreading toward the east into the afternoon within an elevated
moisture axis convergence zone. By late afternoon, advertised up
to 30% chance of showers isolated tstorms across our inland fl
zones south of interstate 10 due to sea breeze outflow convergence
and diurnal heating. Also indicated near 30% rain chances near the
altamaha river basin close to approaching front. Elsewhere,
subsidence will greatly limit convective potential and advertised
rain chances of 20% or less due to diurnal heating under a strong
subsidence ridge across fl. Temperatures will be hot with dry
bulb values in the low mid 90s inland to near 90 along the
atlantic coast under the prevailing wsw steering flow. Heat index
values will near 105 inland due to such high dew pts.

Sat night... A chance of showers and tstorms across SE georgia
ahead of a stalling frontal boundary. Best coverage of
precipitation will be during the evening through midnight, but
will continue with a low 20% chance of convection after midnight
through sunrise near the altamaha river basin. Evening mainly
isolated sea breeze convection will fade across our NE florida
zones generally east of highway 301 due to drier air and stronger
subsidence across the florida peninsula under the persistent
1000-500 mb bermuda ridge axis. Above normal low temperatures and
muggy conditions will continue with minimums only in the
mid upper 70s under light SW winds and mostly to party cloudy
skies.

Sun through mon... Surface trough axis will settle southward from
over southern ga Sunday afternoon to over NE florida on Monday as
the parent upper level trough gradually deepens across the eastern
conus. The surface trough combined with elevated moisture with
precipitable water values near 2 inches and diurnal heating will
bring elevated rain chances across SE ga Sunday then NE fl Monday.

Wsw steering flow will push rainfall inland from the gulf coast
region in the morning with additional convection blossoming along
and near the frontal axis through the day. Strong upper level
dynamics are lacking with this front as it moves across the local
area, thus widespread severe weather is not expected at this time,
however a few strong to isolated severe storms will be possible
each day, mainly during the afternoon and evening. The main
convective hazards will be gusty wet downbursts and locally heavy
rainfall. Drier air will move across SE ga from the wnw Monday,
decreasing rain chances and cloud cover. Mostly to partly cloudy
skies will prevail with high temperatures trending below normal
with values in the mid upper 80s and lows in the low mid 70s with
some upper 60s Mon night near the altamaha river basin due to
drier air and clearing skies trailing the surface front.

Long term Tue through fri...

pattern shift this period as the surface trough axis
stalls meanders across the florida peninsula while drier and
slightly cooler N to ene flow moves across SE ga Tuesday as
surface high pressure builds toward the mid-atlantic region
through thu. A more dominant east coast sea breeze regime will
develop with showers and tstorms progressing east to west through
the day. Highest rain chances will focus across NE fl during this
period under deepest moisture and will trend toward near climo
chances around 40% with below normal rain chances of 30% or less
across SE ga. Fri the frontal zone across the fl peninsula will
begin to lift northward with an increase in moisture and rain
chances edging northward over SE georgia. Temperatures will near
to below normal for MAX temps generally in the upper 80s to mid
80s coast under onshore flow. Low temperatures will trend near
normal around 70 inland to mid 70s coast.

Aviation
Vfr conditions will prevail today. Not expecting any thunderstorm
activity at the terminals today. Winds will back to the southeast
and increase near the coast this afternoon with the seabreeze.

Marine
Winds will back to the southeast and increase with the seabreeze
each afternoon the next couple of days. We favored the nam12 winds
for the nocturnal surges, since it typically handles them best.

This will yield scec conditions with southerly winds increasing to
15 to 20 knots both this evening and again tomorrow evening. A
weak front will push into the waters late Sunday night into
Monday and this will bring light and variable winds through mid-
week.

Rip currents: moderate risk due to increased onshore flow with
seabreeze.

Preliminary point temps pops
Amg 93 74 92 75 40 20 20 30
ssi 89 77 90 78 10 10 10 20
jax 93 74 94 75 10 0 20 20
sgj 89 76 91 76 10 0 20 20
gnv 94 73 93 73 10 10 30 20
ocf 94 73 92 74 20 20 30 20

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Shuler enyedi


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GTXF1 - Guana Tolomato Matanzas Reserve, FL 4 mi84 min S 1.9 76°F 1019 hPa74°F
SAUF1 - St. Augustine, FL 10 mi69 min S 6 G 7 76°F 77°F1017.8 hPa (-1.2)
RCYF1 17 mi51 min 84°F
41117 21 mi47 min 79°F3 ft
BKBF1 40 mi51 min S 8 G 11 79°F 85°F
LTJF1 47 mi51 min 77°F 74°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 48 mi51 min SSW 4.1 G 6 77°F 82°F1017.3 hPa
JXUF1 48 mi51 min 83°F
BLIF1 49 mi51 min S 6 G 8 77°F 1017.7 hPa76°F
DMSF1 49 mi51 min 84°F

Wind History for I-295 Bridge, St Johns River, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL18 mi73 minS 410.00 miFair76°F73°F91%1017.3 hPa

Wind History from SGJ (wind in knots)
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Last 24hrSE5S7S9S8E11SE11SE11SE13SE14SE14SE13
G22
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SE12S12S9
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----S6S6S6S5S4S5
1 day agoSE8SE8S10SE11SE10SE13SE14SE13SE14SE14SE16
G20
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S10SW6SE6SW9W10
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CalmSE3CalmSE3SE4S4
2 days agoE5E8E8SE11
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SE12SE12SE9SE8SE10--SE8SE10S8S7S7S6SE4

Tide / Current Tables for Fort Matanzas, Matanzas River, ICWW, Florida
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Fort Matanzas
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Fri -- 03:15 AM EDT     -0.48 feet Low Tide
Fri -- 06:02 AM EDT     Moonrise
Fri -- 06:25 AM EDT     Sunrise
Fri -- 08:45 AM EDT     4.26 feet High Tide
Fri -- 03:23 PM EDT     -1.00 feet Low Tide
Fri -- 08:05 PM EDT     Moonset
Fri -- 08:28 PM EDT     Sunset
Fri -- 09:17 PM EDT     5.22 feet High Tide
Fri -- 10:32 PM EDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.210-0.5-0.20.82.13.34.14.23.931.90.7-0.4-1-0.80.31.93.44.65.25.14.5

Tide / Current Tables for Bings Landing, Matanzas River, Florida
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Bings Landing
Click for Map
Fri -- 05:28 AM EDT     -0.28 feet Low Tide
Fri -- 06:02 AM EDT     Moonrise
Fri -- 06:25 AM EDT     Sunrise
Fri -- 10:53 AM EDT     1.09 feet High Tide
Fri -- 05:21 PM EDT     -0.54 feet Low Tide
Fri -- 08:05 PM EDT     Moonset
Fri -- 08:28 PM EDT     Sunset
Fri -- 10:32 PM EDT     New Moon
Fri -- 11:46 PM EDT     1.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.10.80.40-0.2-0.20.10.40.811.110.60.3-0-0.3-0.5-0.5-0.10.40.91.41.6

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 Jacksonville, FL (6,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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weather_mapweather_map weather_map

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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.