Friday, January19, 2018 L-36.com


Marine Weather and Tides
Sawgrass, FL

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 7:20AMSunset 5:53PM Friday January 19, 2018 6:23 AM EST (11:23 UTC) Moonrise 9:00AMMoonset 8:18PM Illumination 7% 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
    EDIT      (on/off)   Help
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- 238 Am Est Fri Jan 19 2018
Today..West northwest winds 5 to 10 knots becoming south southeast in the evening. Seas 2 to 3 feet. Dominant period 10 seconds. Inland waters a light chop.
Tonight..South southeast winds around 5 knots becoming south southwest late in the evening, then becoming west northwest after midnight. Seas 2 to 3 feet. Dominant period 10 seconds. Inland waters smooth.
Saturday..North winds around 5 knots becoming east in the evening. Seas 1 to 2 feet. Dominant period 9 seconds. Inland waters smooth.
Saturday night..East southeast winds around 5 knots becoming south southwest late in the evening, then becoming north northwest after midnight. Seas 1 to 2 feet. Dominant period 9 seconds. Inland waters smooth. A slight chance of showers after midnight.
Sunday..Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop. A slight chance of showers.
Sunday night..East northeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters smooth.
Monday..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop.
Monday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop. A slight chance of showers.
Tuesday..West winds 5 to 10 knots becoming north northwest in the afternoon. Seas 2 to 3 feet. Inland waters a light chop.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 238 Am Est Fri Jan 19 2018
Synopsis.. High pressure will slowly build across the area, with winds and seas continuing to decrease. Offshore winds will continue through Saturday. Light onshore winds will develop ahead of a developing frontal system that will move through the waters on Tuesday.

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


Area Discussion for - Jacksonville, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kjax 190754
afdjax
area forecast discussion
national weather service jacksonville fl
254 am est Fri jan 19 2018

Near term through tonight
Arctic high pressure over the gulf coast region today will move
slowly southeast toward our area tonight. After another cold
frosty morning, model guidance suggests temperatures rebound into
55-60 range for highs, possibly lower 60s marion co., under
mostly sunny skies.

For tonight... With mostly clear skies and light winds expected,
latest consensus guidance has low temperatures upper 20s to lower
30s across SE ga, lower to mid 30s across NE fl, 35-40 near coast.

Frost likely where temperatures drop into mid 30s or
lower... Along and W of i-95 in SE ga and west of st. Johns river
in NE fl.

Short term Saturday and Sunday
High pressure will remain centered over the area on Saturday.

Temperatures will continue to moderate, with readings right at
seasonal averages both Saturday and Saturday night. A mid to
upper low will move east across the area Saturday night into
Sunday with just enough moisture across our southern zones to
perhaps squeeze out a light shower or two, mainly south of a line
from gainesville to st augustine.

As the upper low moves eastward into the atlantic, the surface
high will also shift eastward with an inverted coastal trough
developing just offshore Sunday afternoon and evening. The trough
is expected to remain far enough offshore to keep any associated
shower activity away from land areas on Sunday night. Light
onshore flow will develop which will keep the beaches cooler than
inland locations on Sunday. This will result in normal temps along
the coast and a little above normal temps at farther inland
locations.

Long term Monday through Thursday
Southerly flow will develop on Monday ahead of a weakening cold
front. A mild day is expected with temps expected to climb into
the 70s. The cold front will move through the area late Monday
night into Tuesday morning, with shower activity weakening as it
moves through southeast georgia, resulting in a much lesser chance
of rain (10-20%) for a good chunk of northeast florida. Cooler air
will begin to drift in on Tuesday behind the cold front.

The chance for rain Wednesday night and Thursday is completely
dependent on whether or not a wave of low pressure develops in the
gulf of mexico and tracks across the florida peninsula resulting
in an over-running precip event with appreciable rainfall amounts,
a solution that the GFS insists will happen. The ECMWF however
has yet to jump on this bandwagon, keeping our area dry on
Wednesday and Thursday with strong high pressure building north of
the area. The super blend has lowered pops some but we are still
thinking that the ECMWF and its ensemble members have a better
handle on this, so we will probably still end up removing pops
from this timeframe altogether. Thus, temps will likely check in
at or a little below seasonal norms on Wednesday and Thursday.

Aviation Mostly clear skies next 24 hours with surface winds
generally less than 10kts.

Marine Strong high pressure centered over the gulf coast
region will continue to build over our region on Friday and will
linger over the coastal waters through early Sunday while slowly
weakening. Winds will be somewhat variable but generally 10kts or
less through the weekend.

Rip currents: low risk today given decreasing surf height and
light mostly offshore flow. Low risk expected this weekend.

Preliminary point temps pops
Amg 58 29 63 38 0 0 0 10
ssi 56 37 59 44 0 0 0 10
jax 59 33 64 42 0 0 0 10
sgj 56 38 61 48 0 0 0 20
gnv 60 32 66 43 0 0 0 10
ocf 61 35 67 45 0 0 0 10

Jax watches warnings advisories
Fl... Hard freeze warning until 10 am est this morning for alachua-
baker-bradford-clay-coastal duval-coastal nassau-columbia-
flagler-gilchrist-hamilton-inland duval-inland nassau-
marion-putnam-st. Johns-suwannee-union.

Ga... Hard freeze warning until 10 am est this morning for appling-
atkinson-bacon-brantley-charlton-clinch-coastal camden-
coastal glynn-coffee-echols-inland camden-inland glynn-jeff
davis-pierce-ware-wayne.

Am... None.

Wolf shuler


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 14 mi53 min 35°F 29°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 15 mi53 min WSW 2.9 G 4.1 37°F 49°F1027.5 hPa
BLIF1 16 mi53 min SSW 2.9 G 2.9 35°F 1028.6 hPa34°F
DMSF1 17 mi53 min 50°F
JXUF1 18 mi53 min 50°F
41117 20 mi61 min 53°F3 ft
SAUF1 - St. Augustine, FL 24 mi83 min W 6 G 7 35°F 48°F1027.9 hPa (-0.0)
RCYF1 29 mi53 min 49°F
FRDF1 - 8720030 - Fernandina Beach, FL 34 mi53 min SSE 1.9 G 1.9 32°F 47°F1028.2 hPa
41112 - Offshore Fernandina Beach, FL (132) 36 mi53 min 48°F2 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 37 mi98 min W 2.9 32°F 1030 hPa28°F

Wind History for I-295 Bridge, St Johns River, FL
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Craig Municipal Airport, FL13 mi30 minN 08.00 miFair29°F26°F89%1027.5 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL14 mi31 minW 39.00 miFair28°F27°F96%1027.4 hPa
Northeast Florida Regional Airport, FL15 mi27 minWSW 410.00 miFair30°F26°F85%1028.1 hPa
Jacksonville Naval Air Station, FL17 mi30 minWSW 410.00 miPartly Cloudy33°F25°F72%1027.4 hPa

Wind History from CRG (wind in knots)
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrN7N9NW9N10N8N6N9N754CalmE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmNW5NW7NW8NW8NW12
G20
NW17NW14
G19
NW15
G19
NW14NW12
G17
NW12
G19
NW14
G22
NW14NW13NW22
G26
NW13
G24
NW15
G23
NW13NW11NW13
G24
NW13NW14
G21
N9
G18
2 days agoN4N4N6N9N7NE11NE7NE7E7E7E6NE5NE4N3CalmCalmNW3CalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Palm Valley, ICWW, Florida
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Palm Valley
Click for Map
Fri -- 05:22 AM EST     -0.26 feet Low Tide
Fri -- 07:21 AM EST     Sunrise
Fri -- 08:59 AM EST     Moonrise
Fri -- 12:14 PM EST     4.77 feet High Tide
Fri -- 05:51 PM EST     Sunset
Fri -- 05:59 PM EST     -0.21 feet Low Tide
Fri -- 08:19 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.23.82.71.50.4-0.2-0.10.61.62.73.74.44.84.63.82.51.10.2-0.20.1122.93.7

Tide / Current Tables for St. Johns River Entrance, Florida Current
   EDIT      (on/off)   Help   One Week of Data
St. Johns River Entrance
Click for Map
Fri -- 01:57 AM EST     -1.93 knots Max Ebb
Fri -- 05:47 AM EST     0.00 knots Slack
Fri -- 07:22 AM EST     Sunrise
Fri -- 08:35 AM EST     2.25 knots Max Flood
Fri -- 09:00 AM EST     Moonrise
Fri -- 11:54 AM EST     -0.00 knots Slack
Fri -- 02:32 PM EST     -2.09 knots Max Ebb
Fri -- 05:50 PM EST     Sunset
Fri -- 06:42 PM EST     0.00 knots Slack
Fri -- 08:18 PM EST     Moonset
Fri -- 09:03 PM EST     1.73 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.7-1.6-1.9-1.7-1.3-0.70.21.32.12.21.70.9-0.1-1.3-2-2-1.8-1.4-0.70.31.31.71.50.9

Weather Map and Satellite Images
       (on/off)   Help
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)
      (on/off)   Help

Ground Weather Radar Station Jacksonville, FL
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.