Wednesday, August23, 2017 L-36.com


Marine Weather and Tides
Hastings, 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 6:56AMSunset 7:57PM Wednesday August 23, 2017 4:15 AM EDT (08:15 UTC) Moonrise 7:46AMMoonset 8:27PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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- 315 Am Edt Wed Aug 23 2017
Today..Southwest winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop. Isolated showers and Thunderstorms in the afternoon.
Tonight..South southwest winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a moderate chop. A chance of showers and Thunderstorms through the night.
Thursday..South southeast winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Thursday night..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Friday and Friday night..Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Saturday..Northeast winds 15 to 20 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Saturday night..Northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Sunday..Northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters choppy. Showers and Thunderstorms likely.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 315 Am Edt Wed Aug 23 2017
Synopsis.. High pressure will move slowly eastward through midweek. A low pressure trough will remain situated near south florida through late this week. Meanwhile, a cold front will approach the southeast georgia waters from the north by late Thursday, and will slowly move southward into the northeast florida waters on Friday. Low pressure is forecast to develop off the east central florida coast by Friday night and will move slowly northeastward this weekend. Onshore winds will strengthen over the weekend, with small craft advisory conditions possible by Sunday.

7 Day Forecast for Marine Location Near Hastings, FL
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location: 29.76, -81.56     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 230809
afdjax
area forecast discussion
national weather service jacksonville fl
409 am edt Wed aug 23 2017

Near term (today and tonight)...

surface high pressure will continue weakening this morning. Fog has
been a little slow to start this morning as we have some lingering
higher clouds, but at least some patchy fog can be expected around
sunrise across portions of florida. We'll likely see an increase in
convective coverage as a whole this afternoon as heights fall with
the weakening of the upper level ridge. There may be a drier area
in the middle of north florida as the trough south of us brings
activity northward and the upper level trough deepens southward
across southeast georgia. With the falling heights bringing
slightly cooler 500mb temperatures (-6 to -7c), a few stronger
storms are possible. Steering flow will be weak and generally
westerly and as has been the case, heavy rainfall and frequent
lightning strikes will be the main hazards. A cold front will move
through central georgia by late tonight. This trend for a stormier
pattern will continue in the coming days.

Short term (Thursday-Friday night)
Deep tropical moisture returns to the area as a tail end of a
mid upper trough and associated back door front approaches the
region. The front moves through the region Friday and stalls south
of the area (cntl fl) Friday night as high pressure builds well
north of the area. Light steering winds with added low level lift
and convergence will lead to scattered mainly diurnal storms driven
by the front as well as seabreezes and outflows. Localized flooding
is possible given the light winds and high pw (2+ inches). Afternoon
temps in the lower mid 90s on Thursday combined with the humidity
will produce heat indices from around 102 to 106 degrees across
inland areas while coastal areas will reach around 90 degrees with
heat indices of around 100 to 102 degrees. Slightly cooler temps
Friday due to more cloud cover with coastal areas remaining in the
mid to upper 80s due to a surge of northeast winds.

Long term (Saturday-Tuesday)
The remainder of the forecast is rather uncertain pending on the
evolution of the broad trough of low pressure across the bahamas and
south fl. Fairly good agreement with the GFS and ECMWF on some type
of low forming off the east central coast on Saturday and then
eventually getting pulled to the northeast from the southern
extension of the mid upper trough. The tropical weather outlook
indicates a low chance of the trough becoming tropical or sub-
tropical over the weekend and next week as the system is moving
offshore which leads to further uncertainty. There is continued high
confidence in more abundant clouds and cooler MAX temps mainly in
the rainfall forecast also still uncertain but have highest amounts
near the coast and lowest across inland southeast ga. Have followed
wpc QPF which has most of the heavier rain offshore but is subject
to change. Whatever does develop and eventually moves northeast... A
surface wedge setting up from new england into the deep south will
keep a moist northeast flow across the area into the early part of
next week and have continued with scattered pops with slightly below
normal MAX temps.

Aviation
Vfr conditions will give way to MVFR ifr fog and patchy ceilings
later this morning. Bases will rise to the low endVFR range (030-
050 feet) after 13-14z. Winds will be mostly westerly except right
along the coast as the seabreeze moves inland and shifts winds
southeasterly at 8-10 knots. Scattered thunderstorms will develop
this afternoon.

Marine
High pressure centered off the southeast u.S. Coast will move slowly
eastward during the next few days. A weak low pressure trough will
remain situated near south florida through Friday. Winds are
starting to become southwesterly over the coastal waters, however
the atlantic sea breeze will develop on this afternoon and on
Thursday near the coast, with onshore winds expected to remain below
caution levels each afternoon. A long period east southeasterly
swell is keeping combined seas elevated in the 3 to 5 foot range
offshore, and will only gradually fade on later tonight. A cold
front will approach the southeast georgia waters from the north by
late Thursday, and this front will slowly move southward into the
northeast florida waters on Friday. Low pressure is forecast to
develop off the east central florida coast by Friday night and will
move slowly northeastward this weekend. Onshore winds will
strengthen over the weekend, with small craft advisory conditions
possible by Sunday.

Rip currents: a persistent and long period east southeasterly ocean
swell will keep a moderate risk of rip currents in place at area
beaches through Wednesday.

Preliminary point temps pops
Amg 93 76 93 74 40 40 40 40
ssi 91 78 90 78 20 30 40 30
jax 93 76 93 74 20 20 40 20
sgj 92 75 90 76 20 20 30 20
gnv 94 74 92 73 20 30 40 20
ocf 95 74 92 74 30 30 40 30

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Ce pp


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCYF1 3 mi46 min 85°F
SAUF1 - St. Augustine, FL 17 mi76 min SSW 2.9 G 5.1 82°F 82°F1015.5 hPa (-0.9)78°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 19 mi91 min SW 1 77°F 1017 hPa76°F
41117 30 mi54 min 84°F3 ft
BKBF1 31 mi46 min W 4.1 G 5.1 79°F 88°F
JXUF1 41 mi46 min 86°F
DMSF1 43 mi46 min 86°F
LTJF1 43 mi46 min 79°F 76°F
BLIF1 44 mi46 min WSW 5.1 G 6 80°F 1016.4 hPa80°F
NFDF1 44 mi46 min WSW 2.9 G 5.1 81°F 1016.3 hPa77°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 45 mi52 min SW 5.1 G 7 80°F 85°F1015.7 hPa

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL19 mi20 minW 410.00 miFair76°F73°F94%1015.2 hPa

Wind History from SGJ (wind in knots)
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Last 24hrCalmCalmCalmCalmSE8E6SE8E7--E8E9E10SE10E11SE8SE6SE4SE4SE5S6S5CalmCalmW4
1 day agoCalmCalmCalmNE4E7E8E9SE10E11SE10SE8N5N8--N7NE6E5SE5SE4CalmS3NW3CalmCalm
2 days agoS5SW3CalmCalmSW343E8SE10SE11SE11SE16SE12SE10SE12SE7S8SE6SE3CalmCalmSW3W4Calm

Tide / Current Tables for Palmetto Bluff, St. Johns River, Florida
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Palmetto Bluff
Click for Map
Wed -- 04:25 AM EDT     5.17 feet High Tide
Wed -- 06:58 AM EDT     Sunrise
Wed -- 08:46 AM EDT     Moonrise
Wed -- 11:03 AM EDT     3.93 feet Low Tide
Wed -- 04:48 PM EDT     5.11 feet High Tide
Wed -- 07:58 PM EDT     Sunset
Wed -- 09:27 PM EDT     Moonset
Wed -- 11:24 PM EDT     3.92 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.14.54.855.15.154.74.44.243.944.44.74.95.15.154.74.54.24.13.9

Tide / Current Tables for Tocoi, Florida
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Tocoi
Click for Map
Wed -- 04:19 AM EDT     1.15 feet High Tide
Wed -- 06:58 AM EDT     Sunrise
Wed -- 08:46 AM EDT     Moonrise
Wed -- 11:14 AM EDT     -0.14 feet Low Tide
Wed -- 04:40 PM EDT     1.07 feet High Tide
Wed -- 07:58 PM EDT     Sunset
Wed -- 09:27 PM EDT     Moonset
Wed -- 11:30 PM EDT     -0.10 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
00.40.711.11.110.70.40.1-0-0.1-0.10.20.50.811.110.80.50.20-0.1

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 (4,6,7,8)
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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.