Wednesday, January23, 2019 L-36.com


Marine Weather and Tides
St. Augustine Beach, 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 7:17AMSunset 5:56PM Wednesday January 23, 2019 4:33 AM EST (09:33 UTC) Moonrise 8:58PMMoonset 9:22AM Illumination 94% Phase: Waning Gibbous; Moon at 17 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
AMZ454 Expires:201901231615;;788275 Fzus52 Kjax 230809 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 309 Am Est Wed Jan 23 2019 Atlantic Coastal Waters From Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves, Along With The Occasional Height Of The Average Highest 1/10 Of The Waves. Amz450-452-454-231615- 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- 309 Am Est Wed Jan 23 2019
.small craft exercise caution today...
.small craft advisory in effect from this evening through Thursday morning...
Today..South southeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Inland waters choppy. A chance of showers in the morning.
Tonight..South winds 20 to 25 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 8 seconds. Inland waters choppy. A chance of showers in the evening, then showers and a slight chance of Thunderstorms after midnight.
Thursday..West southwest winds 20 to 25 knots becoming west 15 knots in the afternoon. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 9 seconds. Inland waters choppy. Showers and a slight chance of Thunderstorms in the morning.
Thursday night..Northwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 9 seconds. Inland waters a moderate chop.
Friday..North northwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters choppy.
Friday night..North northwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop.
Saturday and Saturday night..North northeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters mostly smooth.
Sunday..North northeast winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop. A slight chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 309 Am Est Wed Jan 23 2019
Synopsis.. A strong cold front will approach the waters tonight and move across the area Thursday morning. Gale force gusts will be possible offshore tonight through Thursday morning. High pressure will then build in through the weekend.


7 Day Forecast for Marine Location Near St. Augustine Beach, FL
   Hourly   EDIT   Help
location: 29.87, -81.26     debug


Area Discussion for - Jacksonville, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kjax 230745
afdjax
area forecast discussion
national weather service jacksonville fl
245 am est Wed jan 23 2019

Near term today and tonight ... Scattered light rain will move
across the area this morning from the south as inverted surface
trough lingers over NE fl SE ga. Trough will lift to the northwest
this afternoon with rain ending by early afternoon. Increasing se
winds will result in warm temperatures today as highs reach the
70s area wide this afternoon. Upper trough and associated cold
front to the west will approach this evening and move into the
area tonight. Widespread rain with isolated thunderstorms will
overspread the area from west to east after 03z tonight. Right
rear quadrant of strong upper jet will provide strong dynamics
tonight with increasing lift and vertical wind shear. Instability
will be weak and confined to fl where a marginal risk of isolated
strong to severe storms will exist with the possibility of strong
gusty winds. Above normal temperatures will continue through
tonight.

Short term Thursday through Saturday ... Showers associated
with the front will quickly exit to the east early Thursday. High
pressure will build from the west in the afternoon, with the
gradient flow leading to gusty conditions. Temperatures will
likely be warmest around noon or before, with readings falling in
the afternoon due to cold advection. The high will continue to
build to the west northwest Thursday night into Friday. The
resultant northwest flow will bring cooler air across region, with
lows in most locations falling into the 30s Thursday night, then
only recovering into the mid to upper 50s Friday. High pressure
is expected to build overhead Friday night through Saturday.

Long term Saturday night through Tuesday ... A trough of low
pressure is expected to develop over south fl Saturday night into
Sunday, with moisture running north into region. This trough will
linger into Monday, with potential for waves to move northeast
along it through Monday night. While expect most of the rain to
remain south, could see a few periods of rain across mainly NE fl.

A cold front will approach from the west Tuesday, with current
timing keeping most of the precipitation to the west.

Temperatures are expected to be near to slightly below normal into
Monday, then a little above normal ahead of the front for
Tuesday.

Aviation Vfr conditions expected today. Ceilings will be
mostly in the 3500 to 6000 foot range. Winds will increase from
the southeast at 10 to 15 knots with gusts to around 20 knots by
afternoon. Conditions will lower to MVFR with increasing rain
chances after 03z tonight ahead of approaching cold front.

Marine Tight pressure gradient will remain over the waters the
next few days with advisory conditions. Gale force gusts will be
possible offshore tonight through Thursday morning as a strong
cold front moves across the waters early Thursday morning.

Widespread rain with isolated thunderstorms will move across the
waters between midnight and mid-morning Thursday. High pressure
will build in behind the front and be reinforced this weekend.

Rip currents: moderate risk today and low on Thursday as winds
become offshore.

Preliminary point temps pops
Amg 74 55 59 36 10 100 20 0
ssi 68 57 64 38 20 100 60 0
jax 73 59 67 38 10 100 50 0
sgj 73 61 69 40 20 100 70 0
gnv 76 61 66 37 0 100 40 0
ocf 78 61 67 37 0 100 50 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory until 9 pm 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.

Small craft advisory from 6 pm this evening to 10 am est
Thursday 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.

Zibura 23


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
SAUF1 - St. Augustine, FL 1 mi33 min SE 6 G 7 62°F 60°F1026.3 hPa (-0.8)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 15 mi108 min SE 4.1 61°F 1027 hPa58°F
RCYF1 16 mi39 min 58°F
LTJF1 37 mi39 min 62°F 57°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 38 mi39 min ESE 2.9 G 5.1 62°F 58°F1026.5 hPa
BLIF1 39 mi39 min ESE 5.1 G 5.1 62°F 1027.3 hPa62°F
DMSF1 39 mi39 min 59°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
Northeast Florida Regional Airport, FL8 mi37 minN 08.00 miOvercast61°F57°F87%1026.5 hPa

Wind History from SGJ (wind in knots)
5
AM
6
AM
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
Last 24hrE13E12E10E11E13E11E10E7E9--SE11E9E6E4SE8E12SE14SE11SE8SE6SE4SE4SE4Calm
1 day agoNW5--CalmNW5N11N10N13N12
G18
N14N15N15N13
G19
N14
G19
NE10NE13NE13
G18
NE15NE11NE13NE11E13E14E13E11
2 days agoSW9SW8W9
G15
W10W15
G21
W11
G19
W16
G23
W19
G27
NW13
G23
W17
G21
W12
G19
W15W12
G18
W9
G17
NW10NW6W7W6W5W5--W4W5NW5

Tide / Current Tables for St. Augustine Beach, Atlantic Ocean, Florida
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Crescent Beach, Matanzas River, Florida
   EDIT      (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (4,6,7,8)
      (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.