Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Douglas, GA

Version 3.4
What's New / NOTES
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.
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.

Sunrise 6:52AMSunset 8:11PM Wednesday April 25, 2018 7:48 PM EDT (23:48 UTC) Moonrise 2:57PMMoonset 3:22AM Illumination 81% Phase: Waxing Gibbous; Moon at 11 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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AMZ450 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- 315 Pm Edt Wed Apr 25 2018
Tonight..West winds near 10 knots. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop.
Thursday..West winds around 5 knots becoming south southeast 10 to 15 knots in the afternoon. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop.
Thursday night..West southwest winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a moderate chop.
Friday..Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A slight chance of showers in the afternoon.
Friday night..West winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop.
Saturday..Northwest winds 5 to 10 knots becoming east southeast in the afternoon. Seas 2 to 3 feet. Inland waters smooth.
Saturday night..Southwest winds 5 to 10 knots becoming northwest after midnight. Seas 1 to 2 feet. Inland waters a light chop.
Sunday..North winds 5 to 10 knots becoming northeast in the afternoon. Seas 2 to 3 feet. Inland waters a light chop.
Sunday night and Monday..East northeast winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 315 Pm Edt Wed Apr 25 2018
Synopsis.. An area of low pressure will be north of the area into Thursday while a weak cold front approaches the area from the northwest. The cold front will push through the coastal waters by Friday night. Weak high pressure will build over the area during the weekend.

7 Day Forecast for Marine Location Near Douglas, GA
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location: 31.54, -82.82     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 251920
afdjax
area forecast discussion
national weather service jacksonville fl
320 pm edt Wed apr 25 2018

Near term (rest of today through Thursday)
Northwest to west low level flow will continue through early
tonight then gradually back as a sfc cold front approaches the
southeast states and a mid level shortwave trough moves into the
lower ms valley. Mostly clear to partly cloudy skies will
continue into the evening then some weak warm advection into
tonight with min temps still able to drop to the 55-60 deg range
given clearing skies and light to calm winds. Some moist advection
off the gulf may allow some patches of shallow fog to form over
inland northeast fl late tonight.

For Thursday... Winds will become southwest near 10-15 mph as a
weak cold front and shortwave mid upper trough move into the
southeast states. Parent sfc low progged to be over NRN al while
the front progresses eastward toward north and central ga in the
afternoon. A fairly narrow plume of moisture and low level
convergence will lead to isolated to scattered showers and
possibly a few storms to move into southeast ga in the mid to late
afternoon hrs. Warm advection will push temps to the lower to mid
80s... Warmest temps over northeast fl. Went slightly above model
blend temp guidance.

Short term (Thursday night through Saturday)
An upper level short wave trough will be moving across the region
with a surface low centered over north georgia tennessee with a
trough extending southward across the big bend. A few showers will
be moving through the suwannee valley and the hazlehurst area of
georgia Thursday evening with some drying overnight as the trough
moves offshore. On Friday a larger amplitude upper level trough
will dive south through the mississippi river valley and into the
southeast driving a relatively dry cold front ahead of it. That
front will transit the region overnight on Friday night and will
be offshore by Saturday morning with lower relative humidity and a
wind shift the primary consequences. Saturday will be a pleasant
and dry day with a breezy northwesterly flow. Low temperatures for
the period will be in the mid 50s to lower 60s and the highs
Friday and Saturday will be in the mid 70s to lower 80s.

Long term (Saturday night through Thursday)
The upper level trough moves offshore over the weekend with a large
high pressure system building in to the north of the region. This
will cause a moderate northeaster over the weekend and into mid
week. By late week the high will drop southward over the area with
the center over north florida. Temperatures will be close to
climatology with no significant precipitation expected for the
period.

Aviation
Some scattered clouds around 4-6 kft today so continuedVFR
conditions. West to northwest winds near 10-15 kt and gusty at
times... Lessening to near 5 kt or less by late evening. Some
patchy fog possible late tonight around the gnv area but due to
uncertainty kept the vsby at 6sm and scattered 100 ft at this
time. Southwesterly flow around 5-10 kt starts Thursday ahead of
next cold front withVFR.

Marine
West to southwest offshore flow will continue the next few days
with wind speeds and sea heights expected to be mostly below
headline criteria. The exception will be Thursday night when scec
conditions will be possible offshore due approaching front.

Frontal passage may be slow on Friday but likely moving south of
the area late Friday night per NAM and gfs. Fairly weak pressure
gradient on Saturday but another surge of cooler air may arrive
on Sunday with potential slightly higher northerly winds.

Rip currents: low to moderate risk through Thursday due to east
swells with periods near 9 seconds.

Preliminary point temps pops
Amg 55 81 56 76 0 40 30 0
ssi 62 77 62 76 0 10 10 10
jax 59 85 61 81 0 10 10 10
sgj 61 82 62 81 0 0 10 10
gnv 57 84 60 80 0 0 20 10
ocf 57 82 60 81 0 0 20 20

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Shashy cordero sandrik


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 81 mi49 min NW 11 75°F 1010 hPa (-0.0)58°F
FRDF1 - 8720030 - Fernandina Beach, FL 93 mi49 min W 8 G 9.9 78°F 68°F1010.9 hPa (-0.0)

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Douglas, Douglas Municipal Airport, GA5 mi54 minNW 610.00 miMostly Cloudy72°F53°F53%1011.5 hPa
Alma, Bacon County Airport, GA17 mi56 minWNW 1210.00 miMostly Cloudy76°F55°F48%1010.4 hPa

Wind History from DQH (wind in knots)
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Last 24hrW6CalmCalmCalmNW5NW7W4W5W5W3W4W4W6W7NW7W8W9
G15
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1 day agoS3S5S6SW8SW7SW5SW5W9SW6SW4SW4SW3SW5W7W7W11
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2 days agoE11
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SE5CalmE3CalmSE3SE4S3S5SW6SW8W8
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Tide / Current Tables for Burnt Fort, Satilla River, Georgia
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Burnt Fort
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Wed -- 04:17 AM EDT     0.12 feet Low Tide
Wed -- 04:17 AM EDT     Moonset
Wed -- 06:49 AM EDT     Sunrise
Wed -- 09:41 AM EDT     3.49 feet High Tide
Wed -- 03:54 PM EDT     Moonrise
Wed -- 04:52 PM EDT     0.05 feet Low Tide
Wed -- 08:02 PM EDT     Sunset
Wed -- 10:16 PM EDT     3.45 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.31.610.40.10.311.92.83.43.53.22.72.11.40.70.20.10.51.32.233.43.4

Tide / Current Tables for Below Spring Bluff, Little Satilla River, Georgia
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Below Spring Bluff
Click for Map
Wed -- 12:43 AM EDT     0.28 feet Low Tide
Wed -- 04:16 AM EDT     Moonset
Wed -- 06:47 AM EDT     Sunrise
Wed -- 06:55 AM EDT     8.09 feet High Tide
Wed -- 01:18 PM EDT     0.11 feet Low Tide
Wed -- 03:52 PM EDT     Moonrise
Wed -- 07:30 PM EDT     8.00 feet High Tide
Wed -- 08:01 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.31.22.94.86.57.78.17.66.34.62.710.20.41.73.55.46.97.97.975.53.6

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Southeast    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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (19,4,5,8)
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Ground Weather Radar Station Moody AFB, GA
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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.