Thursday, May25, 2017 L-36.com


Marine Weather and Tides
St. Augustine Beach, FL

Version 3.4
What's New / NOTES
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 6:25AMSunset 8:18PM Thursday May 25, 2017 4:12 PM EDT (20:12 UTC) Moonrise 5:29AMMoonset 7:16PM Illumination 0% Phase: New Moon; Moon at 0 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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AMZ454 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- 401 Pm Edt Thu May 25 2017
.small craft exercise caution...
Tonight..West winds 15 to 20 knots this evening decreasing to 10 to 15 knots by midnight. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a moderate chop.
Friday..West northwest winds 5 to 10 knots becoming southeast in the afternoon. Seas 1 to 2 feet. Dominant period 7 seconds. Inland waters a light chop.
Friday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 7 seconds. Inland waters a light chop.
Saturday..Southwest winds 5 to 10 knots becoming south southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Dominant period 7 seconds. Inland waters a light chop.
Saturday night..South winds 10 to 15 knots becoming southwest after midnight. Seas 2 to 3 feet. Inland waters a light chop.
Sunday..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop.
Sunday night..South southwest winds 10 to 15 knots becoming west after midnight. Seas 2 to 3 feet. Inland waters a light chop.
Monday..Southwest winds 5 to 10 knots becoming south 10 to 15 knots in the afternoon. Seas 1 to 2 feet. Inland waters a light chop.
Monday night..Southwest winds 10 to 15 knots becoming west 5 to 10 knots after midnight. Seas 1 to 2 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Tuesday..Southwest winds 5 to 10 knots becoming south southeast in the afternoon. Seas 1 to 2 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 401 Pm Edt Thu May 25 2017
Synopsis.. Weak high pressure will build over our area from the west tonight through Friday. High pressure will build to the southeast early next week as a cold front approaches the southeast.

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


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 251937
afdjax
area forecast discussion
national weather service jacksonville fl
335 pm edt Thu may 25 2017

Short term Tonight through Friday... Gusty winds will decrease
this evening as vertical mixing and the pressure gradient
decrease. Surface high pressure will build in from the gulf
tonight and settle over south fl on Friday. Mostly clear skies and
lighter winds will prevail tonight and Friday. Good radiational
cooling will result in cooler than normal temperatures tonight.

Lows will be in the low mid 50s inland to the low 60s along the
coast. Highs on Friday will be warmer with highs reaching near 90
degrees inland and low mid 80s at the coast where an afternoon
seabreeze will develop.

Friday night through Sunday... Deep layer high pressure will dominate
the region through this period with rising thicknesses producing a
warming trend. Still fairly cool Saturday morning with lows down to
a few upper 50s but mostly lower to mid 60s. Saturday and
Sunday... Mostly clear skies (other than a more few CU and high
clouds on Sunday ) with warmer temps expected with highs pushing
through the 90-95 deg range. Lows gradually trend to the mid to
upper 60s 70. Predominant low level flow is from the southwest and
west but weak enough for east coast sea breeze to keep the area
beaches just slightly cooler during the day.

Long term memorial day through Thursday ...

the deep layer ridge begins to get shunted southeastward as
troughing digs over the ERN u.S. A trailing cold front will push
deep into the southeast states with moisture values rising across
our region starting early in the week and continuing to pool over
mainly northern sections initially for memorial day with some low
chance for showers and storms late Monday in SE ga. Isolated to
scattered convection possible Tuesday and Tuesday night as front may
enter our SE ga zones and shortwave energy rides west to east across
al ga and sc. Confidence in timing of this activity remains low at
this time. Front may stall on Wednesday and lift back northward
slowly on Thursday as troughing in the east lifts out to the
northeast. Sufficient moisture, diurnal instability, and sea breeze
boundaries will likely lead to a better chance of showers and storms
on Wednesday and Thursday. Temps will be near normal.

Aviation West winds gusting to around 25 knots this afternoon
will decrease this evening to less than 10 knots after 23z.VFR
conditions expected to continue into Friday.

Marine High pressure will build south of the waters tonight
with decreasing pressure gradient and winds. Expect scec for this
evening decreasing to below headline criteria by midnight. The
high will shift east into the atlantic early next week with a
frontal boundary approaching the SE by midweek.

Rip currents: low risk through Friday.

Fire weather
High dispersion today but expect lower values on Friday and
Saturday. Min rh values will drop to critical levels the next couple
of days but winds and low erc (due to wetted grounds from recent
rains) do not meet red flag criteria.

Preliminary point temps pops
Amg 55 88 60 93 0 0 0 0
ssi 64 83 68 89 0 0 0 0
jax 58 88 62 93 0 0 0 0
sgj 58 84 65 90 0 0 0 0
gnv 55 88 61 92 0 0 0 0
ocf 56 88 60 91 0 0 0 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory until 4 pm edt this afternoon 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 shashy corless


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 1 mi72 min W 11 G 16 78°F 78°F1011 hPa (-0.6)
41117 13 mi50 min 77°F3 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 15 mi87 min WSW 6 82°F 1012 hPa54°F
RCYF1 16 mi42 min 80°F
BKBF1 32 mi42 min W 9.9 G 16 80°F 79°F
LTJF1 37 mi42 min 78°F 51°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 38 mi42 min W 14 G 21 78°F 79°F1009.8 hPa
JXUF1 38 mi42 min 82°F
BLIF1 39 mi42 min W 12 G 19 81°F 1010.1 hPa51°F
DMSF1 39 mi42 min 80°F
NFDF1 41 mi42 min W 6 G 12 81°F 1010 hPa

Wind History for I-295 Bridge, St Johns River, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Augustine, St. Augustine Airport, FL8 mi16 minW 17 G 2110.00 miFair82°F51°F34%1009.9 hPa

Wind History from SGJ (wind in knots)
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Last 24hrSW8
G15
SW8SW7S8SW8SW6S8SW5SW6SW7SW6SW5SW5W3CalmW4NW8
G15
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1 day agoSW12
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SW9SW7
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SW9SW8
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SW8SW9SW6SW5W4S3W3W5SW65S4S635CalmCalmW11
G17
W5SW9
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2 days agoSE12
G19
4N5SE8SE10S10S8S9SW6SW6SW7SW4S6SW5SW4SW6SW9SW10SW9S10S11--SW14
G20
SW13
G21

Tide / Current Tables for St. Augustine Beach, Atlantic Ocean, Florida
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St. Augustine Beach
Click for Map
Thu -- 02:07 AM EDT     -0.73 feet Low Tide
Thu -- 06:26 AM EDT     Sunrise
Thu -- 06:28 AM EDT     Moonrise
Thu -- 08:15 AM EDT     4.93 feet High Tide
Thu -- 02:11 PM EDT     -1.11 feet Low Tide
Thu -- 03:46 PM EDT     New Moon
Thu -- 08:15 PM EDT     Moonset
Thu -- 08:17 PM EDT     Sunset
Thu -- 08:41 PM EDT     6.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.8-0.3-0.7-0.40.51.83.24.34.94.73.72.20.6-0.6-1.1-0.80.21.83.5566.25.54

Tide / Current Tables for Crescent Beach, Matanzas River, Florida
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Crescent Beach
Click for Map
Thu -- 03:58 AM EDT     -0.74 feet Low Tide
Thu -- 06:26 AM EDT     Sunrise
Thu -- 06:28 AM EDT     Moonrise
Thu -- 09:40 AM EDT     3.91 feet High Tide
Thu -- 03:46 PM EDT     New Moon
Thu -- 04:05 PM EDT     -1.00 feet Low Tide
Thu -- 08:15 PM EDT     Moonset
Thu -- 08:17 PM EDT     Sunset
Thu -- 10:11 PM EDT     4.99 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.71.70.6-0.3-0.7-0.20.92.13.13.83.93.32.21.20.3-0.5-1-0.60.72.23.54.554.7

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 (16,3,4,5)
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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.