Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Palm Valley, FL

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:14AMSunset 7:44PM Thursday March 30, 2017 6:40 AM EDT (10:40 UTC) Moonrise 8:16AMMoonset 9:43PM Illumination 9% Phase: Waxing Crescent; Moon at 3 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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AMZ452 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- 316 Am Edt Thu Mar 30 2017
Today..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms in the afternoon.
Tonight..South winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a moderate chop. A slight chance of Thunderstorms in the evening. A chance of showers through the night.
Friday..Southwest winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a moderate chop. A chance of showers in the morning. A slight chance of showers in the afternoon.
Friday night..West winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a light chop.
Saturday..Northwest winds 5 to 10 knots becoming east southeast in the afternoon. Seas 2 to 3 feet. Inland waters a light chop.
Saturday night..South southeast winds around 5 knots. Seas 1 to 2 feet. Inland waters smooth.
Sunday..East southeast winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop.
Sunday night..Southeast winds 10 to 15 knots. Seas 2 to 3 feet building to 3 to 5 feet with occasional seas up to 6 feet after midnight. Inland waters a moderate chop.
Monday..South southeast 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 Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 316 Am Edt Thu Mar 30 2017
Synopsis.. A weak pressure pattern will persist over area waters today as a warm front lifts slowly north of the region. A cold front will move southeast across the region Friday into Friday night. Weak high pressure will then build north then east of the local waters this weekend. A cold front will then cross the region early next week with advisory conditions expected over portions of the local waters.

7 Day Forecast for Marine Location Near Palm Valley, FL
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location: 30.22, -81.39     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 300725
afdjax
area forecast discussion
national weather service jacksonville fl
325 am edt Thu mar 30 2017

Marginal risk of severe storms Fri morning...

Near term Today through Friday...

increasing rain chances over the next couple of days as
persistent ridging breaks down over the southeast as a long wave
trough currently across the great plains edges eastward. Today a
few early morning showers will continue to impact parts of SE ga
along and north of a lifting warm front. Morning fog signals are
not very strong with a progressive increase in high clouds ahead
of the approaching frontal system and lingering debris clouds from
some convection across SE ga. At this time advertised patchy fog
through sunrise.

By midday a few showers will begin to pop along the sea breezes
with a better chance of airmass showers popping across inland se
ga. Continued to focus the highest chances of showers and isolated
tstorms generally along and east of the highway 301 corridor
across SE ga decreasing southward over NE fl where moisture will
be more limited. Increasing SW steering flow will push afternoon
convection offshore of the coast this evening. Given cooling 500
mb temps of -13 to -14 deg c across SE ga later this afternoon and
early this evening a rogue stronger storm could produce some hail
and/or gusty winds.

Tonight evening precipitation will push offshore of the atlantic
coast... While pre-frontal precip edges toward our western ga zones
after midnight. Models diverge with the timing and coverage of
pre-frontal rainfall across the area late tonight through
Friday... With the met and ECMWF generally drier compared to the
gfs for most sites across the forecast area. Despite the
discrepancy of precip intensity and coverage... Guidance does
concur with the greatest chances of rainfall across SE ga fri
morning... Then a decrease in rainfall across the area into the
afternoon as the precip pushes across the forecast area as a
strong mid/upper level dry slot wraps across the area. This dry
air intrusion is expected to tapper off rainfall as it moves
across the region through midday Fri with just a few sparse
showers possible by Friday afternoon across our southern florida
zones. Still looks to be a chance of a few strong thunderstorms
early Friday morning across SE ga and the suwannee river valley
where cold 500 mb of -15 to -16 deg c will traverse the area with
a modest low level jet of 30-35 kts from the sw. Severe storm
potential decreases from the wnw into the afternoon as drier air
overrides the area and dynamics lift nne of the region.

Above normal temperatures will continue this period with near
record high temperatures again today across portions of se
georgia.

Short term Friday night through Saturday night... A dry cold front
will move across the area Friday night. Ridging at surface and aloft
will produce a fair and dry weather pattern with light winds through
Saturday night. Temperatures will be above normal with lows mostly
in the 50s and highs in the 80s.

Long term Sunday through Wednesday... Upper ridge axis will be
situated across the SE on Sunday providing warm and dry conditions.

High temperatures will range from the lower 80s coast to the mid to
upper 80s inland. An upper low will move from the southern plains to
the SE coast Monday and Monday night. At the surface a low pressure
center will move by to the north which will bring a pre-frontal
trough across SE ga/ne fl on Monday. This boundary may produce
strong to severe storms Monday into Monday night as instability and
vertical wind shear increase. Some model differences in timing exist
with the GFS a little faster than the ecmwf. A cold front with drier
air will move through on Tuesday. Temperatures will remain above
average through the period.

Aviation PrevailingVFR conditions advertised for all terminals
less vqq where some patchy ground fog is possible based on climo.

Scattered mid level clouds and increasing cirrus expected to
prevent significant fog formation this morning. Best chances of
showers today will be near ssi where vcsh was advertised as well
as at jax/crg after 21z as precip drifts toward the atlantic coast
through the evening. Sse flow will veer ssw overnight tonight
ahead of approaching cold front.

Marine Se winds today with seas 4 ft or less. Winds will
increase late this afternoon into the evening from the ssw ahead
of an approaching cold front to 15-20 kts and seas building to 5-6
ft over the outer waters. Winds expected to remain just shy of
advisory criteria Fri with the frontal passage... Then offshore
flow Friday night trailing the front. High pressure settles over
the region this weekend with lighter sea breeze dominated flow
expected. A much stronger frontal system approaches Mon with
southerly winds increasing to advisory levels ahead of the system.

Elevated offshore flow continues into Tue trailing the
front... Then a decrease in magnitudes into Tue night as high
pressure tries to rebuild northward over south florida.

Rip currents: moderate risk today due to persistent ese swells
near 2 ft and periods of 10-11 seconds. Low risk of rips Fri under
offshore flow.

Climate Record MAX temperature for alma was reached yesterday.

The new record is 87 which broke the old record of 86 set in
1998. Another day of near record highs for SE ga is expected
today.

Site march 30
records
jax 89/1961
gnv 94/1907
amg 86/1998
ssi 88/1954

Preliminary point temps/pops
Amg 84 64 83 56 / 40 40 40 10
ssi 78 65 84 62 / 40 50 20 10
jax 86 63 86 58 / 40 40 20 0
sgj 84 65 84 60 / 30 30 30 0
gnv 87 62 84 55 / 20 10 30 0
ocf 85 63 83 57 / 20 10 30 10

Jax watches/warnings/advisories
Fl... None.

Ga... None.

Am... None.

Enyedi/zibura


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 11 mi41 min 69°F 66°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 12 mi41 min SE 5.1 G 7 69°F 69°F1015.3 hPa (-0.7)
BLIF1 14 mi41 min ESE 1.9 G 5.1 69°F 1015.4 hPa (-0.9)65°F
JXUF1 15 mi41 min 71°F
DMSF1 15 mi41 min 71°F
BKBF1 16 mi41 min SSE 5.1 G 7 71°F 73°F
NFDF1 18 mi41 min E 1 G 1.9 70°F 1015.3 hPa (-0.7)
SAUF1 - St. Augustine, FL 26 mi41 min SE 6 G 7 69°F 68°F1016.1 hPa (-0.5)
RCYF1 30 mi41 min 72°F
FRDF1 - 8720030 - Fernandina Beach, FL 32 mi41 min E 1.9 G 2.9 69°F 71°F1015.9 hPa (-0.3)
41112 - Offshore Fernandina Beach, FL (132) 34 mi41 min 68°F3 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 40 mi56 min Calm 64°F 1017 hPa60°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Craig Municipal Airport, FL10 mi48 minESE 310.00 miMostly Cloudy67°F62°F84%1014.8 hPa
Mayport, Mayport Naval Station, Adm David L. McDonald Field, FL12 mi49 minESE 610.00 miPartly Cloudy70°F66°F87%1014.9 hPa
Jacksonville Naval Air Station, FL15 mi48 minSSE 510.00 miPartly Cloudy71°F62°F73%1014.4 hPa
St. Augustine, St. Augustine Airport, FL18 mi43 minS 410.00 miFair65°F61°F87%1015.5 hPa

Wind History from CRG (wind in knots)
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Last 24hrSW3SW3W43N43SE5NE9
G15
E9E9SE8E8SE6SE4E3CalmSW7S5S4CalmCalmSE4SE7SE3
1 day agoCalmCalmSW7SW11W8--W5W7
G14
5SW9SE8SE6SE6SE6S8S5SW5CalmCalmCalmCalmCalmCalmW3
2 days agoCalmCalmCalmS5SE4CalmE4E9E11
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Tide / Current Tables for Oak Landing, ICWW, Florida
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Oak Landing
Click for Map
Thu -- 01:15 AM EDT     5.10 feet High Tide
Thu -- 07:03 AM EDT     -0.59 feet Low Tide
Thu -- 07:17 AM EDT     Sunrise
Thu -- 09:16 AM EDT     Moonrise
Thu -- 01:43 PM EDT     4.66 feet High Tide
Thu -- 07:18 PM EDT     -0.66 feet Low Tide
Thu -- 07:43 PM EDT     Sunset
Thu -- 10:43 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.75.14.942.61.1-0.1-0.6-0.20.71.933.94.54.64.12.91.40.1-0.6-0.50.41.72.9

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Thu -- 12:33 AM EDT     -0.00 knots Slack
Thu -- 03:09 AM EDT     -2.60 knots Max Ebb
Thu -- 07:16 AM EDT     0.00 knots Slack
Thu -- 07:16 AM EDT     Sunrise
Thu -- 09:16 AM EDT     Moonrise
Thu -- 09:51 AM EDT     2.24 knots Max Flood
Thu -- 12:53 PM EDT     -0.01 knots Slack
Thu -- 03:31 PM EDT     -2.46 knots Max Ebb
Thu -- 07:23 PM EDT     0.00 knots Slack
Thu -- 07:43 PM EDT     Sunset
Thu -- 10:15 PM EDT     2.77 knots Max Flood
Thu -- 10:43 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.8-0.7-2-2.6-2.4-1.9-1.3-0.30.91.92.21.81-0.1-1.5-2.4-2.4-2-1.3-0.40.822.72.5

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.