Wednesday, October17, 2018 L-36.com


Marine Weather and Tides
Fleming Island, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:29AMSunset 6:54PM Wednesday October 17, 2018 10:10 AM EDT (14:10 UTC) Moonrise 2:01PMMoonset 12:00AM Illumination 56% Phase: First Quarter Moon; Moon at 8 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- 947 Am Edt Wed Oct 17 2018
.small craft advisory in effect from Thursday morning through Friday morning...
Rest of today..South winds 5 to 10 knots shifting to the southeast 10 knots in the afternoon. Seas 2 to 3 feet. Dominant period 11 seconds. Inland waters smooth. Scattered showers and isolated Thunderstorms.
Tonight..Southeast winds 5 to 10 knots becoming northeast 10 to 15 knots after midnight. Seas 2 to 3 feet building to 3 to 5 feet with occasional seas up to 6 feet after midnight. Dominant period 11 seconds. Inland waters a light chop. Scattered showers and isolated Thunderstorms through the night.
Thursday..Northeast winds 20 to 25 knots. Seas building to 5 to 7 feet with occasional seas up to 9 feet. Dominant period 6 seconds. Inland waters choppy. A chance of showers and a slight chance of Thunderstorms.
Thursday night..East northeast winds 20 to 25 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Inland waters choppy. A chance of showers and a slight chance of Thunderstorms.
Friday..East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop. A chance of showers.
Friday night..East southeast winds 10 to 15 knots becoming south southeast 5 to 10 knots after midnight. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a light chop. A chance of showers.
Saturday..Southwest winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Saturday night..West northwest winds 10 to 15 knots becoming north northwest 15 to 20 knots after midnight. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a moderate chop. A chance of showers.
Sunday..North 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.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 947 Am Edt Wed Oct 17 2018
Synopsis.. A slow moving cold front over central georgia will move through the coastal waters tonight. Strong high pressure will build quickly overnight, resulting in an abrupt increase in northeasterly winds Thursday morning hours and subsequent small craft advisory conditions through early Friday. High pressure will then move off the mid- atlantic coast and will weaken on Friday, with onshore winds and seas gradually diminishing. A strong cold front will then move across our region on Saturday night, with northwesterly winds strengthening after midnight. Onshore winds will quickly develop in the wake of this frontal passage as strong high pressure builds into the carolinas on Sunday.


7 Day Forecast for Marine Location Near Fleming Island, FL
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location: 30.13, -81.69     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 171346
afdjax
area forecast discussion
national weather service jacksonville fl
946 am edt Wed oct 17 2018

Update
Sfc data shows cold front stretching from the nc outer banks to
srn sc to south central ga, and into the wern fl panhandle. Front
will slowly shift southeastward today. Boundary layer flow ahead
of the weak front from the southwest and ridge aloft at 500 mb
remains over central parts of fl. Water vapor imagery and model
cross section shows significant dry air aloft that will generally
limit convection today and this evening. The 500 mb temp also
fairly warm at -5c. Nonetheless, sufficient moisture in the low
levels and forcing along the front will likely generate isolated
to possibly scattered showers and storms this afternoon and
evening from coastal ga to the suwannee valley area, including
areas around metro jax.

The late arrival of the weak cold front and plenty of Sun will
allow MAX temps to still reach the lower 90s most areas. Elevated
dewpoints in the lower 70s will result in heat indices to be in
the upper 90s to just over 100. Record heat possible with current
records noted below:
jacksonville: 91 set in 1989
gainesville: 93 set in 1925
alma: 89 set in 1989
st simons island: 88 set in 1972
little change in the update for today with minor tweaks to the
convection timing and pops. Carried pops into the evening hours
and shifting isolated to scattered convection southward as the
front advances slowly into northeast fl. Also, limited coverage
of t-storms to more isolated coverage.

Aviation
Vfr conditions prevail. Light south to southwest flow less than 10
kt through early afternoon. Wind shifts at ksgj due sea breeze. A
low chance of convection with isolated showers and a few storms
possible later today as a cold front moves through so vc wording
looks good at this time. Still a threat of some convection in the
evening hours as the front moves into the region. Winds will shift
to northerly after midnight most TAF sites, with stronger north-
northeast wind at kssi up to 15g25kt.

Marine Southwest flow initially, will transition to south and
southeast as atlc sea breeze develops. Cold front will move into
the NRN zones this evening, with stronger northerly winds moving
into the ga waters by midnight or a couple of hours after that.

Current forecast good with minor adjustments for morning wording.

Rip currents: moderate risk of rip currents today, with a high
risk expected on Thursday.

Preliminary point temps pops
Amg 90 67 76 61 20 10 0 10
ssi 87 72 76 65 30 30 20 20
jax 92 72 79 67 30 40 30 30
sgj 88 73 81 72 20 50 50 40
gnv 93 72 84 68 20 30 40 10
ocf 93 71 87 70 10 30 40 20

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory from 8 am Thursday to 8 am edt Friday 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-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.

Shashy sandrik


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DMSF1 19 mi40 min 82°F
BLIF1 20 mi40 min SW 6 G 7 80°F 1022.5 hPa80°F
LTJF1 22 mi40 min 80°F 76°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 23 mi40 min SW 6 G 8.9 80°F 82°F1021.8 hPa
RCYF1 24 mi40 min 82°F
SAUF1 - St. Augustine, FL 29 mi70 min SSW 6 G 8 80°F 82°F1021.4 hPa (+1.5)
FRDF1 - 8720030 - Fernandina Beach, FL 40 mi40 min WSW 4.1 G 7 81°F 82°F1022.2 hPa
GTXF1 - Guana Tolomato Matanzas Reserve, FL 41 mi85 min SW 1.9 77°F 1022 hPa76°F
41112 - Offshore Fernandina Beach, FL (132) 45 mi40 min 82°F2 ft

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Naval Air Station, FL7 mi77 minSW 710.00 miPartly Cloudy80°F75°F87%1020.7 hPa
Cecil Airport, FL12 mi20 minSSW 310.00 miFair84°F75°F74%1021.3 hPa
Jacksonville Craig Municipal Airport, FL16 mi17 minSW 710.00 miFair82°F75°F79%1021.3 hPa
Northeast Florida Regional Airport, FL22 mi14 minS 710.00 miFair82°F75°F79%1021.8 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL23 mi78 minSW 510.00 miFair79°F75°F88%1020.7 hPa

Wind History from NIP (wind in knots)
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Last 24hrS8S8S6E7SE64S6E7E11E11SE11SE10SE5SE7SE7S8S9S12
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1 day agoNE3Calm5NE4N5CalmE11E8E9E6E8SE6SE5SE4SE4E3SE5S7S7S4Calm5SW4SE4
2 days agoN7N3N43E7E9E9E8E9E9NE5NE5E4NE4E5E4CalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Julington Creek, Florida (2)
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Julington Creek
Click for Map
Wed -- 12:57 AM EDT     Moonset
Wed -- 02:14 AM EDT     7.06 feet Low Tide
Wed -- 07:26 AM EDT     7.64 feet High Tide
Wed -- 07:29 AM EDT     Sunrise
Wed -- 02:26 PM EDT     7.05 feet Low Tide
Wed -- 03:00 PM EDT     Moonrise
Wed -- 06:53 PM EDT     Sunset
Wed -- 07:56 PM EDT     7.77 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.27.17.17.17.37.57.67.67.67.57.37.27.17.17.17.17.37.57.77.77.87.77.57.3

Tide / Current Tables for Piney Point, St. Johns River, Florida
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Piney Point
Click for Map
Wed -- 12:39 AM EDT     5.80 feet Low Tide
Wed -- 12:57 AM EDT     Moonset
Wed -- 06:05 AM EDT     6.38 feet High Tide
Wed -- 07:30 AM EDT     Sunrise
Wed -- 12:50 PM EDT     5.72 feet Low Tide
Wed -- 03:00 PM EDT     Moonrise
Wed -- 06:52 PM EDT     6.47 feet High Tide
Wed -- 06:53 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.85.85.96.26.36.46.46.36.265.95.85.75.75.86.16.36.46.46.56.46.26.15.9

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.
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Wind Forecast for Jacksonville, FL (10,2,3,4)
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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.