Saturday, June23, 2018 L-36.com


Marine Weather and Tides
World Golf Village, FL

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 6:25AMSunset 8:32PM Saturday June 23, 2018 2:12 PM EDT (18:12 UTC) Moonrise 3:35PMMoonset 2:23AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 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- 906 Am Edt Sat Jun 23 2018
Rest of today..West southwest winds 10 to 15 knots, becoming southeast late this afternoon. Seas 2 to 3 feet. Dominant period 6 seconds. Inland waters a light chop.
Tonight..West southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop.
Sunday..West winds 10 knots, becoming east southeast 10 to 15 knots during the afternoon. Seas 1 to 2 feet. Dominant period 8 seconds, becoming 3 seconds during the afternoon. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Sunday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop.
Monday..South winds 10 to 15 knots, becoming east southeast during the afternoon. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Monday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and isolated Thunderstorms.
Tuesday..South winds around 5 knots, becoming east southeast 10 to 15 knots during the afternoon. Seas 2 to 3 feet. Inland waters a light chop. Showers likely and a chance of Thunderstorms.
Tuesday night..South winds 5 to 10 knots, becoming west after midnight. Seas 2 to 3 feet. Inland waters mostly smooth. Showers likely and a chance of Thunderstorms.
Wednesday..North northeast winds around 5 knots, becoming east southeast 10 to 15 knots during the afternoon. Seas 1 to 2 feet. Inland waters becoming a light chop. A chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 906 Am Edt Sat Jun 23 2018
Synopsis.. A surface trough positioned over the southeastern states will gradually weaken through Monday. Atlantic ridging extending westward across south florida will slowly lift northward on Sunday and will be positioned over our waters by Monday. A cold front will then approach the georgia waters from the north on Tuesday and is expected to stall near the florida border towards midweek.

7 Day Forecast for Marine Location Near World Golf Village, FL
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location: 29.86, -81.55     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 231415
afdjax
area forecast discussion
national weather service jacksonville fl
1015 am edt Sat jun 23 2018

Hot temperatures again extend to the coast this afternoon...

Update
Morning surface analysis depicts weak surface troughing positioned
from the coastal carolinas across the southeastern states. The
axis of atlantic ridging extends across south florida. Meanwhile,
a wavy surface boundary remains in place from the mid-atlantic
states to the ohio and tennessee valleys and the red river valley
of northern texas. Aloft... A potent shortwave trough was
progressing east-northeastward across the ohio valley, which has
displaced atlantic subtropical ridging to a position over south
florida and the southeastern gulf of mexico. Latest goes-e derived
total precipitable water vapor (pwat) imagery depicts an
unseasonably dry air mass in place across the interstate 10
corridor, where pwats are in the 1.2-1.3 inch range, with slightly
higher values closer to late june climatology for locations to
the north of waycross, where a thicker cumulus field has developed
per morning visible satellite imagery and surface observations.

Deeper moisture (pwats of 1.8-1.9 inches) resides for locations to
the south and east of a line from st. Augustine to gainesville.

Temperatures were quickly warming through the 80s area-wide as of
14z, with dewpoints generally in the low to mid 70s.

A dry and subsident air mass will prevail over much of our region
today, with high resolution, short term guidance indicating that
convection will flare along the surface trough over coastal south
carolina and extending southwestward to the altamaha ocmulgee
river basins during the mid-afternoon hours. Widely scattered
coverage will be possible for locations north of waycross, and
some southward moving outflow boundaries could spark some isolated
convection over coastal southeast georgia late this afternoon.

Convection developing along the inland-moving gulf coast sea
breeze will be mostly suppressed today, with outflow boundaries
from the florida peninsula potentially moving northward late this
afternoon and sparking widely scattered convection over the ocala
national forest and perhaps the southern st. Johns river basin
during the early evening hours. The dry air aloft over our region
will mix the cumulus field out during the early to mid afternoon
hours, and a prevailing offshore wind will result in hot
temperatures extending all the way to the coast this afternoon.

Our local pressure gradient will remain tight enough to delay the
development of the atlantic coast sea breeze until the mid
afternoon hours, which will allow highs to climb to the mid 90s.

Inland highs will reach the mid to upper 90s. The dry air aloft
mixing down to the surface will result in dewpoints falling to the
upper 60s to the lower 70s, which will keep MAX heat index values
just below heat advisory levels, or generally in the 103-107
range. Latest guidance is hinting at convection lingering over
southeast georgia early this evening, with fair skies expected
across northeast and north central florida. Lows tonight will only
fall to the mid and upper 70s.

Aviation
A period of MVFR ceilings around 1500-2500 feet is expected at the
duval county terminals and sgj through around 17z.VFR conditions
will otherwise prevail at the regional terminals. The atlantic
sea breeze will develop along the coast towards 18z 19z, passing
across sgj towards 19z, crg ssi towards 20z 21z and jax towards
22z. West southwesterly surface winds will prevail at 10-15 knots
until the sea breeze passes westward, with southeasterly winds
developing at sgj and a south southeasterly wind shift expected at
crg ssi jax late this afternoon. Isolated showers and
thunderstorms could impact gnv and ssi after 20z, but timing and
confidence of potential impacts remains too low to include in the
tafs at this time.

Marine
A surface trough positioned over the southeastern states will
gradually weaken today and Sunday. This will allow atlantic
ridging that currently extends westward across south florida to
lift northward to a position over the northeast florida waters by
early Monday. The atlantic sea breeze will likely not develop
until the mid-afternoon hours today in coastal locations as our
local pressure gradient remains relatively tight, keeping west
southwest winds in place at area beaches through early afternoon.

This tight gradient will create an evening wind surge that will
approach caution speeds in the offshore waters through around
midnight before subsiding during the predawn hours. Evening wind
surges will remain below caution speeds on Sunday and Monday as
our local gradient loosens, which will allow the atlantic sea
breeze to develop shortly after noon and push inland during the
afternoon hours. A cold front will then approach the georgia
waters from the north on Tuesday, with this front weakening as it
stalls near the florida border towards midweek. Chances for
showers and thunderstorms will increase as this front approaches
early next week.

Rip currents: low risk expected this weekend due to low wave
heights, delayed sea breeze development and late afternoon high
tide.

Preliminary point temps pops
Amg 96 75 96 75 10 10 20 10
ssi 93 78 93 78 20 10 20 20
jax 96 75 95 76 20 10 30 20
sgj 94 76 92 75 10 10 20 10
gnv 96 74 95 75 10 0 50 30
ocf 94 74 94 74 10 0 60 30

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Nelson corless


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 15 mi73 min WSW 8 G 8.9 90°F 79°F1016.5 hPa (+0.0)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 22 mi88 min W 5.1 90°F 1018 hPa73°F
41117 27 mi51 min 84°F1 ft

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 mi17 minNW 910.00 miA Few Clouds92°F71°F51%1015.8 hPa

Wind History from SGJ (wind in knots)
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Last 24hrW1065SE5SE11S7SW4SW4SW5--SW5--SW5SW5SW5SW3SW3W5W9W9NW9--W8NW9
1 day agoSE10SW16
G24
W4SW7SW7SW5SW6SW8SW8W6W7SW7--W5W6W7W6W4W65W10W7W7W10
2 days agoSE12NW7
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S6SW8SW5SW4SW4--SW3SW4SW4S6SW5SW5SW5SW5SW5SW6SW6W4NW6CalmE7E5

Tide / Current Tables for Tocoi, Florida
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Tocoi
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Sat -- 03:23 AM EDT     Moonset
Sat -- 06:26 AM EDT     Sunrise
Sat -- 06:42 AM EDT     0.05 feet Low Tide
Sat -- 11:56 AM EDT     0.87 feet High Tide
Sat -- 04:34 PM EDT     Moonrise
Sat -- 06:49 PM EDT     -0.06 feet Low Tide
Sat -- 08:30 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.90.70.50.30.20.10.10.20.40.60.80.90.80.70.50.30.1-0-0.10.10.30.60.8

Tide / Current Tables for Palmetto Bluff, St. Johns River, Florida
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Palmetto Bluff
Click for Map
Sat -- 03:23 AM EDT     Moonset
Sat -- 06:11 AM EDT     4.05 feet Low Tide
Sat -- 06:26 AM EDT     Sunrise
Sat -- 11:53 AM EDT     4.99 feet High Tide
Sat -- 04:34 PM EDT     Moonrise
Sat -- 06:33 PM EDT     3.98 feet Low Tide
Sat -- 08:30 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
54.94.74.54.34.24.14.14.44.64.84.954.94.74.54.34.1444.24.54.74.9

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (14,3,4,5)
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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.