Friday, March24, 2017 L-36.com


Marine Weather and Tides
Sawgrass, 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 7:21AMSunset 7:41PM Friday March 24, 2017 2:09 AM EDT (06:09 UTC) Moonrise 4:05AMMoonset 3:21PM Illumination 12% Phase: Waning Crescent; Moon at 26 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- 1234 Am Edt Fri Mar 24 2017
.small craft advisory in effect until noon edt today...
Rest of tonight..East winds 15 to 20 knots after midnight. Seas 5 to 7 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Inland waters a moderate chop.
Friday..East southeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Inland waters a moderate chop.
Friday night..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Inland waters a moderate chop.
Saturday..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Inland waters a moderate chop.
Saturday night..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a moderate chop.
Sunday..Southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
Sunday night..South southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
Monday..South southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
Monday night..South winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
Tuesday..South southwest winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop. A slight chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 1234 Am Edt Fri Mar 24 2017
Synopsis.. Strong high pressure along the mid-atlantic coast will continue moving slowly southeastward tonight...emerging into the atlantic waters north of our region...while gradually weakening. Onshore winds will continue on Friday and Saturday with speeds and seas gradually diminishing.

7 Day Forecast for Marine Location Near Sawgrass CDP, FL
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location: 30.19, -81.36     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 240118
afdjax
area forecast discussion
national weather service jacksonville fl
918 pm edt Thu mar 23 2017

Update
The pressure gradient will weaken slightly tonight as high
pressure builds to the northeast. Let the wind advisory expire,
and winds should remain below 20mph along the coast this evening
and then diminish further overnight. A few light showers/sprinkles
continue over the marine waters. Do not expect any accumulation
for the land areas overnight. Smoke may reduce visibilities
overnight in portions of nassau, baker, columbia, duval, and
charlton counties overnight due to a large wildfire. Overnight
lows will be in the low to mid 50s across the interior and the
upper 50s to lower 60s for the coastal areas.

Aviation
GenerallyVFR conditions are forecast through the period for the
northeast florida TAF sites. MVFR CIGS will prevail into the
overnight hours at kssi. Northeasterly flow will become more
easterly as high pressure shifts off to the northeast. The
pressure gradient will also begin to relax some, and lighter winds
around 5 knots are expected overnight. Easterly winds will
increase to 10-15 knots on Friday. Ceilings will range from 3-5
kft for the florida TAF sites, and 1.5-4kft at kssi through the
period.

Marine
Easterly flow will fall below 20 knots overnight as the pressure
gradient begins to weaken. Seas will remain 6-10 feet offshore
and 5-7 feet nearshore overnight and small craft advisories remain
in effect.

High surf advisory remains in effect for portions of the northeast
florida coast until 5 am.

Rip currents: high risk of rip currents through Friday.

Preliminary point temps/pops
Amg 52 76 54 79 / 0 10 0 10
ssi 58 69 61 72 / 10 10 10 10
jax 55 75 57 77 / 10 10 10 10
sgj 61 71 60 76 / 10 10 10 10
gnv 54 78 55 80 / 0 0 0 10
ocf 55 78 56 81 / 0 0 0 10

Jax watches/warnings/advisories
Fl... High rip current risk through Friday evening for coastal duval-
coastal nassau-flagler-st. Johns.

High surf advisory until 5 am edt Friday for flagler-st. Johns.

Ga... High rip current risk through Friday evening for coastal camden-
coastal glynn.

Am... Small craft advisory until 4 am edt Saturday 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 until noon 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.

Kennedy/zibura/mcginnis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 14 mi52 min 65°F 56°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 15 mi52 min E 7 G 11 65°F 65°F1029.3 hPa
BLIF1 16 mi52 min ESE 7 G 11 65°F 1029.5 hPa59°F
DMSF1 17 mi52 min 65°F
BKBF1 18 mi52 min NE 6 G 7 64°F 66°F
JXUF1 18 mi52 min 65°F
NFDF1 20 mi52 min Calm G 2.9 59°F 1029.5 hPa
SAUF1 - St. Augustine, FL 24 mi70 min E 16 G 18 66°F 65°F1029.3 hPa (+0.0)
RCYF1 29 mi52 min 68°F
FRDF1 - 8720030 - Fernandina Beach, FL 34 mi52 min E 2.9 G 5.1 63°F 64°F1029.9 hPa
41112 - Offshore Fernandina Beach, FL (132) 36 mi40 min 63°F6 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 37 mi85 min E 8 67°F 1030 hPa58°F

Wind History for I-295 Bridge, St Johns River, FL
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NE7
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Craig Municipal Airport, FL13 mi17 minE 710.00 miFair62°F53°F73%1028.8 hPa
Mayport, Mayport Naval Station, Adm David L. McDonald Field, FL14 mi18 minE 1010.00 miMostly Cloudy65°F55°F70%1028.9 hPa
St. Augustine, St. Augustine Airport, FL15 mi72 minE 1210.00 miFair66°F55°F70%1028.7 hPa
Jacksonville Naval Air Station, FL17 mi17 minNE 510.00 miFair62°F57°F84%1028.4 hPa

Wind History from CRG (wind in knots)
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Last 24hrNE10NE11NE11NE8NE11NE5NE6E12E12E10E9E9NE9NE8E9
G17
E7NE10NE8NE10NE8NE4E3E5E7
1 day agoW9W8W7W6W8W9W9W8W11W12NW7
G14
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NW7E14
G20
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E7E6NE6NE7
2 days agoCalmCalmCalmSW3S4CalmW5W8SW10SW11W12W9
G17
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G18
W9W9SW9SW8SW8SW13
G20
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G19
W8W11W8W8

Tide / Current Tables for Palm Valley, ICWW, Florida
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Palm Valley
Click for Map
Fri -- 01:52 AM EDT     0.44 feet Low Tide
Fri -- 05:05 AM EDT     Moonrise
Fri -- 07:24 AM EDT     Sunrise
Fri -- 08:44 AM EDT     4.88 feet High Tide
Fri -- 02:31 PM EDT     0.33 feet Low Tide
Fri -- 04:21 PM EDT     Moonset
Fri -- 07:39 PM EDT     Sunset
Fri -- 09:00 PM EDT     4.73 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.40.70.40.81.62.53.44.24.84.94.43.42.21.10.40.411.92.93.84.54.74.43.5

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Fri -- 02:12 AM EDT     0.00 knots Slack
Fri -- 04:50 AM EDT     1.92 knots Max Flood
Fri -- 05:05 AM EDT     Moonrise
Fri -- 07:24 AM EDT     Sunrise
Fri -- 08:17 AM EDT     -0.00 knots Slack
Fri -- 10:53 AM EDT     -1.87 knots Max Ebb
Fri -- 02:56 PM EDT     0.00 knots Slack
Fri -- 04:21 PM EDT     Moonset
Fri -- 05:22 PM EDT     1.71 knots Max Flood
Fri -- 07:39 PM EDT     Sunset
Fri -- 08:34 PM EDT     -0.00 knots Slack
Fri -- 11:08 PM EDT     -1.97 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.5-1-0.20.81.71.91.61.10.3-0.8-1.7-1.9-1.7-1.4-0.80.11.11.71.61.20.5-0.5-1.5-2

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 (2,6,7,8)
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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.