Saturday, June23, 2018 L-36.com


Marine Weather and Tides
Gainesville, FL

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 6:28AMSunset 8:34PM Saturday June 23, 2018 7:21 PM EDT (23:21 UTC) Moonrise 3:38PMMoonset 2:26AM Illumination 80% Phase: Waxing Gibbous; Moon at 10 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- 319 Pm Edt Sat Jun 23 2018
Tonight..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop.
Sunday..West winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Seas 1 to 2 feet. Dominant period 8 seconds. Inland waters a light chop.
Sunday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop.
Monday..South southwest winds 5 to 10 knots becoming south southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms in the afternoon.
Monday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Tuesday..South southwest winds 5 to 10 knots becoming south southeast in the afternoon. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Tuesday night..South winds 5 to 10 knots becoming southwest after midnight. Seas 2 to 3 feet. Inland waters smooth. Showers likely and a chance of Thunderstorms.
Wednesday..North northeast winds around 5 knots becoming east southeast in the afternoon. Seas 1 to 2 feet. Inland waters smooth. Showers likely and a chance of Thunderstorms.
Wednesday night..South winds around 5 knots becoming west southwest after midnight. Seas 2 to 3 feet. Inland waters smooth. A chance of showers and a slight chance of Thunderstorms.
Thursday..North northeast winds around 5 knots becoming southeast in the afternoon. Seas 2 to 3 feet. Inland waters smooth. A chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 319 Pm Edt Sat Jun 23 2018
Synopsis.. A surface trough across the area will weaken through the weekend. Breezy southwest winds will decrease some tomorrow as flow remains offshore. A cold front will then approach the georgia waters from the north on Tuesday. It is expected to stall near the florida border towards midweek, bringing back onshore flow for the remainder of the week.

7 Day Forecast for Marine Location Near Gainesville, FL
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location: 29.71, -82.3     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 232010
afdjax
area forecast discussion
national weather service jacksonville fl
410 pm edt Sat jun 23 2018

Hot today but even hotter tomorrow with dangerous heat index
values expected inland...

Discussion
Very dry and subsident air mass remains across the area. A few
storms over north central florida were able to develop as the gulf
seabreeze moved inland in predominant westerly flow. Further to
our north, strong thunderstorms have developed along a shortwave
trough. This activity could clip our far northern counties across
southeast georgia, but with the dry airmass in place it would be
difficult for storms to hold together. Nevertheless, some
southward moving outflow boundaries could spark some isolated
convection over coastal southeast georgia later this afternoon and
evening. Overnight thunderstorm activity should wane with diurnal
heating, but with plenty of CAPE and outflow boundaries a few
showers or thunderstorms are possible.

Hot temperatures will likely be the main feature tomorrow as the
upper level ridge amplifies. Heat index values will still be in
the low 100s at the coast despite the development of the atlantic
seabreeze. Inland, heat index values will soar to around 110, and
possible near excessive heat advisory criteria of 113. For now
have opted for just an advisory, and if any isolated convection
can develop tomorrow it may lower the readings across north
central florida. Models seem unimpressed with convection for the
most part tomorrow though, owing to the strong subsidence in
place. Pwats should be on the rise though as mid and upper level
flow shifts to become more easterly from the dry northwest flow of
today. On Monday, heat index values will again be near or well
into advisory criteria for most of the area. The upper level ridge
will start breaking down some though, and as heights fall the
possibility for diurnal convection along the seabreezes may help
keep those index values in check. 500mb temperatures remain around
-8, so while a few storms could become somewhat strong heavy
rainfall may be the higher concern as pwats approach 2 inches.

500mb temperatures will continue to decrease despite very weak
upper level ridging remaining in place across much of the
southeast through the week. A very weak shortwave trough and
surface trough will drop southward on Tuesday and Wednesday, and
should act to enhance coverage of diurnal thunderstorms. With weak
surface and steering flow, seabreeze convection and mergers will
be common each afternoon through the end of the week.

Aviation
Vfr conditions will continue for the rest of today, tonight, and
into tomorrow. Winds will be predominantly out of the west today
with strong winds and wind gusts of approximately 20 knots which
will slow later in the afternoon and become light and variable
overnight. Conditions tomorrow morning will beVFR overall, with
the possibility of some lower cloud decks in the morning.

Marine
General offshore flow at 10-15 knots with seas 2-4 ft will
continue through the weekend. A weakening frontal boundary drifts
south into the waters Tuesday with lighter and more variable flow
with local sea breezes.

Rip currents: low risk

Preliminary point temps pops
Amg 76 96 76 96 20 10 20 30
ssi 78 92 78 91 20 10 10 20
jax 76 95 76 95 0 10 20 30
sgj 76 91 75 90 10 10 10 20
gnv 75 94 75 93 0 20 20 40
ocf 75 93 74 92 10 40 20 30

Jax watches warnings advisories
Fl... Heat advisory from 11 am to 6 pm edt Sunday for alachua-baker-
bradford-clay-gilchrist-inland duval-inland nassau-inland
st. Johns-union.

Ga... Heat advisory from 11 am to 6 pm edt Sunday for appling-bacon-
brantley-charlton-inland camden-inland glynn-pierce-ware-
wayne.

Am... None.

Elsenheimer


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCYF1 40 mi52 min 90°F
CDRF1 - Cedar Key, FL 55 mi82 min WSW 7 G 8.9 86°F 1015.3 hPa (-0.8)76°F
SAUF1 - St. Augustine, FL 56 mi82 min SSE 12 G 14 83°F 79°F1015 hPa (-0.7)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 57 mi97 min SE 8.9 87°F 1017 hPa78°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gainesville, Gainesville Regional Airport, FL3 mi29 minSW 410.00 miFair92°F70°F49%1014.9 hPa
Keystone Airpark, FL16 mi47 minW 410.00 miFair93°F64°F39%1014.6 hPa

Wind History from GNV (wind in knots)
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Last 24hrSW9SW5SW5W5SW4SW4SW5S4SW3S5SW3W3SW6W7W10W9W8W11NW5W3
G16
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1 day agoW8SW4SW4CalmS5SW4SW6SW7SW7W5W4W3W5W8NW9W9W7W9W10
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2 days agoSW4SW4CalmSW3W4CalmSE4SW10
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G31
W8W9S7SW8W10

Tide / Current Tables for Buffalo Bluff, St. Johns River, Florida
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Buffalo Bluff
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Sat -- 12:56 AM EDT     0.61 feet High Tide
Sat -- 03:24 AM EDT     Moonset
Sat -- 06:27 AM EDT     Sunrise
Sat -- 07:42 AM EDT     -0.55 feet Low Tide
Sat -- 01:07 PM EDT     0.56 feet High Tide
Sat -- 04:34 PM EDT     Moonrise
Sat -- 08:07 PM EDT     -0.58 feet Low Tide
Sat -- 08:30 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.60.50.2-0.1-0.2-0.4-0.5-0.5-0.30.10.30.50.60.50.2-0.1-0.3-0.4-0.5-0.6-0.5-0.10.2

Tide / Current Tables for Palatka, St. Johns River, Florida
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Palatka
Click for Map
Sat -- 12:17 AM EDT     0.92 feet High Tide
Sat -- 03:23 AM EDT     Moonset
Sat -- 06:27 AM EDT     Sunrise
Sat -- 06:55 AM EDT     -0.49 feet Low Tide
Sat -- 12:29 PM EDT     0.85 feet High Tide
Sat -- 04:34 PM EDT     Moonrise
Sat -- 07:16 PM EDT     -0.55 feet Low Tide
Sat -- 08:30 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.90.60.30-0.2-0.4-0.5-0.30.10.40.60.80.80.60.2-0-0.2-0.4-0.5-0.5-0.10.30.5

Weather Map and Satellite Images
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wmap_A
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.
target = "new">Link to Loop

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 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.