Wednesday, February20, 2019 L-36.com


Marine Weather and Tides
St. Marys, GA

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 7:00AMSunset 6:19PM Wednesday February 20, 2019 5:23 PM EST (22:23 UTC) Moonrise 7:43PMMoonset 7:56AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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- 239 Pm Est Wed Feb 20 2019
.small craft exercise caution due to seas...
Tonight..South winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 7 feet. Dominant period 8 seconds. Inland waters smooth. Showers likely in the evening.
Thursday..South southeast winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop. Areas of fog in the morning.
Thursday night..South winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop. A slight chance of showers in the evening.
Friday..Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop. A slight chance of showers in the afternoon.
Friday night..Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters smooth. A chance of showers.
Saturday..South southeast winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a light chop. A chance of showers.
Saturday night..South southwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Sunday..West winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. Showers likely.
Sunday night..North northwest winds 15 to 20 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A slight chance of showers and Thunderstorms.
Monday..Northeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters choppy. A slight chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 239 Pm Est Wed Feb 20 2019
Synopsis..A warm front across the waters will lift north of the area tonight. Patchy sea fog will be possible at times mainly near the coast tonight and Thursday. Weak high pressure ridge will lift north to central florida tonight through Friday morning. Another backdoor cold front will move into the coastal georgia waters late Friday, lifting back north by Saturday. A stronger cold front will move across the region on Sunday.
Gulf stream.. The approximate location of the west wall of the gulf stream as of feb 18, 2019 at 1200 utc... 69 nautical miles east of flagler beach. 75 nautical miles east of saint augustine beach. 86 nautical miles east of jacksonville beach. 99 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near St. Marys, GA
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location: 30.72, -81.55     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 202024
afdjax
area forecast discussion
national weather service jacksonville fl
324 pm est Wed feb 20 2019

Short term Tonight and thurday... Warm front lifting north today
to near the fl-ga line and will push north of the area this
evening. Temperatures has reach the lower 80s with winds becoming
s to SE across inland NE fl with scattered light showers. Expect
scattered showers through the evening hours as instability
increases this afternooon with heating and frontal passage.

Isolated thunder possible over inland areas of NE fl this
afternoon where surface based capes have reached the 1000-1500
j kg range. Showers will fade by late evening with low
temperatures only falling into the 60s. Southerly flow with
abundant low level moisture will lead to stratus reforming tonight
with areas of fog including over the coastal waters. Drier and
more stable air over the area on Thursday will result in only
isolated showers over southern zones in the afternoon.

Temperatures will be warm with highs reaching the 80s inland(near
record levels)... And upper 70s near the coast where an afternoon
seabreeze will develop.

Thursday night through Saturday night... Deep layer high pressure
will remain to the ese with a frontal boundary to the nw. Warm and
humid conditions will continue with much above normal
temperatures. High temperatures will reach the 80s inland... And
upper 70s beaches where a daily seabreeze will develop. Low
temperatures will be in the 60s with nightly fog possible.

Isolated showers will be possible mainly during the afternoon
hours.

Long term Sunday through Wednesday... A cold front will slowly
move across SE ga and NE fl on Sunday reaching central fl by 12z
Monday. Showers will be likely on Sunday with a slight chance for
thunderstorms... Decreasing Sunday evening. Models differ with
timing next week in bringing the front back north with widespread
rain into the area. ECMWF brings rain in on Tuesday with the gfs
slower with rain arriving on Wednesday. Temperatures should be at
or above normal through the period.

Aviation Widespread MVFR CIGS still possible this afternoon as
scattered showers will progress through all TAF sites and have
kept in vcsh and will monitor for any tempo groups that may be
needed. More low clouds and fog to develop tonight with ifr conds
likely by the 06-09z time frame and possibly lifr by 09z and have
trended this direction with latest TAF issuance. May need to go
lower at ssi if sea fog develops again late tonight. Improving
conds expected in the 14-15z time frame withVFR conds expected as
south winds mix out the low clouds with CIGS expected just above
3000 feet by the afternoon.

Marine A warm front will move across the waters this evening and
then to the north of the area tonight. Elevated seas will
maintain the SCA for offshore waters tonight with scec headline
for the near shore waters. Winds will veer to the south tonight
with wind speeds up to 15 knots through Saturday. A cold front
will move into the region on Sunday with scec conditions possible
Saturday night through Monday.

Rip currents: high risk today and moderate risk on Thursday.

Climate
Record MAX temps for february 21st..

Jax 85 1997... Gnv 86 2018... Amg 87 2018... Ssi 82 2011
record MAX temps for february 22nd...

jax 85 1962... Gnv 86 2013... Amg 84 2018... Ssi 81 2011

Preliminary point temps pops
Amg 61 83 61 84 0 0 10 20
ssi 60 75 61 76 50 0 10 20
jax 62 83 63 83 70 0 10 30
sgj 61 78 62 79 70 10 20 10
gnv 62 84 63 85 10 0 10 20
ocf 61 85 63 85 10 0 20 10

Jax watches warnings advisories
Fl... High rip current risk until 7 pm est this evening for coastal
duval-coastal flagler-coastal nassau-coastal st. Johns.

Ga... None.

Am... Small craft advisory until 4 am est Thursday 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.

Zibura hess bricker


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 5 mi54 min NNE 4.1 G 6 66°F 63°F1018.9 hPa
41112 - Offshore Fernandina Beach, FL (132) 14 mi54 min 60°F5 ft
BLIF1 23 mi54 min ESE 7 G 9.9 76°F 1018.6 hPa76°F
DMSF1 23 mi54 min 63°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 23 mi54 min SSE 7 G 14 71°F 62°F1017.9 hPa
LTJF1 24 mi54 min 75°F 67°F
SAXG1 - Sapelo Island Reserve, GA 50 mi144 min E 5.1 65°F 1018 hPa (-3.0)64°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 59 mi94 min NE 7.8 G 7.8 60°F 59°F5 ft1018.8 hPa (-1.3)58°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fernandina Beach Municipal Airport, FL9 mi29 minSE 10 G 1510.00 miOvercast68°F65°F91%1018.3 hPa
Jacksonville International Airport, FL17 mi28 minNNW 810.00 miMostly Cloudy75°F68°F79%1017.8 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL24 mi32 minSSE 1510.00 miMostly Cloudy71°F66°F84%1017.6 hPa

Wind History from FHB (wind in knots)
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N13N7N9N6N6N6N3N3CalmCalmE4E6E7E8E8E9SE7
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2 days agoSE8SE6SE5S7CalmSW3S4SE4S4S4SW5SW6SW5SW4SW6SW6SW10SW11W8N16
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NE12NE13NE10NE11

Tide / Current Tables for St. Marys, St. Marys River, Florida
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St. Marys
Click for Map
Wed -- 03:30 AM EST     -1.46 feet Low Tide
Wed -- 07:02 AM EST     Sunrise
Wed -- 07:55 AM EST     Moonset
Wed -- 10:00 AM EST     7.58 feet High Tide
Wed -- 04:01 PM EST     -1.18 feet Low Tide
Wed -- 06:17 PM EST     Sunset
Wed -- 07:42 PM EST     Moonrise
Wed -- 10:26 PM EST     7.06 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.11.9-0.1-1.3-1.3-0.11.83.95.87.17.67.15.63.41.2-0.5-1.2-0.60.92.84.76.176.9

Tide / Current Tables for St. Johns River Entrance, Florida Current (3)
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St. Johns River Entrance
Click for Map
Wed -- 01:35 AM EST     -2.59 knots Max Ebb
Wed -- 05:23 AM EST     0.00 knots Slack
Wed -- 07:02 AM EST     Sunrise
Wed -- 07:55 AM EST     Moonset
Wed -- 08:14 AM EST     3.21 knots Max Flood
Wed -- 11:23 AM EST     -0.00 knots Slack
Wed -- 02:09 PM EST     -2.60 knots Max Ebb
Wed -- 05:59 PM EST     0.00 knots Slack
Wed -- 06:17 PM EST     Sunset
Wed -- 07:42 PM EST     Moonrise
Wed -- 08:39 PM EST     2.92 knots Max Flood
Wed -- 11:41 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.7-2.5-2.5-2.1-1.4-0.40.92.43.232.10.6-1-2.2-2.6-2.4-1.9-1.101.52.72.92.21.1

Weather Map and Satellite Images
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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 (17,4,5,8)
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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.