Wednesday, October18, 2017 L-36.com


Marine Weather and Tides
Gainesville, 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 7:32AMSunset 6:56PM Wednesday October 18, 2017 12:54 PM EDT (16:54 UTC) Moonrise 5:21AMMoonset 5:37PM Illumination 3% Phase: Waning Crescent; Moon at 28 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- 1050 Am Edt Wed Oct 18 2017
.small craft advisory in effect through Thursday morning...
Rest of today..Northeast winds 20 to 25 knots with occasional gusts to gale force. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 7 seconds. Inland waters rough. A chance of showers.
Tonight..Northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 8 seconds. Inland waters choppy. A chance of showers.
Thursday..Northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Inland waters choppy. Showers likely in the morning, then a chance of showers.
Thursday night..Northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Inland waters choppy. A slight chance of showers.
Friday..Northeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters choppy. A chance of showers.
Friday night through Saturday night..East southeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters choppy. A chance of showers.
Sunday..East southeast winds 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop. Showers likely and a slight chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 1050 Am Edt Wed Oct 18 2017
Synopsis.. Strong high pressure will remain centered over the carolinas and mid-atlantic states through Saturday. Strong northeasterly winds will prevail through tonight, with small craft advisory conditions and occasional gale force gusts expected on all area waters today. Small craft advisories will remain in effect offshore through at least Thursday, with elevated onshore winds and rough seas expected to continue into the weekend.

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 181627
afdjax
area forecast discussion
national weather service jacksonville fl
1227 pm edt Wed oct 18 2017

Windy conditions prevail at the coast with high surf and
coastal flooding continuing...

Update
Early afternoon surface analysis depicts strong high pressure
(1030 millibars) centered over the mid-atlantic states. The cold
front that passed through our region on Monday night is now a
stalled boundary over southern florida. Aloft... Broad low to mid
level troughing remains in place over our region, with ridging
amplifying over the western gulf of mexico. Fair skies and
decoupling winds overnight allowed lows to fall into the upper 40s
for our northern ga locations near the altamaha river, with 50s
for most inland locations from gainesville northward. A tight
pressure gradient prevails over our region, with windy conditions
continuing overnight along the coast, which kept lows in the lower
60s along the southeast georgia coast and 65-70 at the northeast
florida coast. Onshore winds are bringing in plenty of cumulus and
stratocumulus clouds into northeast florida and coastal southeast
georgia, with fair skies for locations over inland southeast
georgia and the suwannee valley. Noon temperatures ranged from
70-75 over inland southeast georgia and 75-80 elsewhere.

Showers that impacted flagler and st. Johns counties earlier this
morning have moved into the dry air mass that exists inland and
have dissipated. Showers are increasing in coverage over the
offshore coastal waters adjacent to georgia, and this activity
will advect southwestward and will likely move into camden and
duval counties towards sunset per the latest short-term high
resolution models. Otherwise, the dry air mass in place will keep
fair skies in place over inland southeast georgia and the suwannee
valley, where highs will reach the upper 70s, with highs elsewhere
near 80 this afternoon.

Aviation
Occasional MVFR ceilings around 2500 feet will be possible at sgj
through about 18z, withVFR ceilings elsewhere in the 3000-4000
foot range through 00z. Showers are expected to move onshore into
duval county towards 00z, with periods of ceilings around 3000
feet possible at the duval county terminals and ssi during the
evening and overnight hours. Otherwise,VFR conditions will
prevail. Gusty northeasterly winds are expected through 00z at the
regional terminals, with sustained surface speeds near 20 knots at
sgj and around 15 knots elsewhere, with frequent gusts of 20-30
knots possible. Winds will decrease after 00z, but will remain
breezy at sgj and ssi.

Marine
Strong high pressure will remain centered to the north of our
region through the upcoming weekend, keeping a tight pressure
gradient in place over our region. Small craft advisory conditions
will continue through Thursday morning over the near shore waters
and through at least Thursday night offshore. Seas of 7-9 feet are
expected offshore and 6-8 feet near shore today, with wind speeds
falling back to 15-20 knots tonight. Seas will remain at sca
levels near shore overnight and through at least Thursday night
offshore. Winds and seas will remain at caution levels near shore
through the weekend, and seas offshore may remain at SCA levels
past Thursday night into the weekend.

Rip currents high surf: high risk of rip currents continues
through Thursday at area beaches. Breaker heights of 5-7 feet will
continue this afternoon, with the high surf advisory set to expire
at 7 pm this evening.

Hydrology coastal flooding
The coastal flood warning has been extended into duval county, as
tide gauges in downtown jacksonville and on surrounding
tributaries within the st. Johns basin reached moderate flood
levels during the morning high tide. Strong onshore winds and the
approach of the new moon will keep water levels elevated during
the next several days. A coastal flood advisory continues for
nassau, camden, and glynn counties through at least Thursday
morning, with minor coastal flooding expected along the beaches.

The coastal flood warning is in effect for the st. Johns basin
through at least Thursday morning, with moderate flooding also
occurring along coastal st. Johns and flagler counties during
times of high tide.

Preliminary point temps pops
Amg 77 55 81 56 0 0 0 0
ssi 73 65 77 68 20 30 10 10
jax 76 63 79 66 30 40 30 10
sgj 76 70 78 70 30 30 40 20
gnv 80 62 83 63 10 10 30 10
ocf 82 63 84 66 20 10 20 10

Jax watches warnings advisories
Fl... High rip current risk through Thursday evening for coastal duval-
coastal nassau-flagler-st. Johns.

Coastal flood advisory until 11 am edt Thursday for coastal
nassau.

Coastal flood warning until 11 am edt Thursday for clay-coastal
duval-flagler-inland duval-putnam-st. Johns.

High surf advisory until 7 pm edt this evening for coastal duval-
coastal nassau-flagler-st. Johns.

Ga... High rip current risk through Thursday evening for coastal
camden-coastal glynn.

Coastal flood advisory until 11 am edt Thursday for coastal
camden-coastal glynn.

Am... Small craft advisory until 6 am edt Friday 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 until 9 am edt 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.

Nelson zibura mcginnis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCYF1 40 mi54 min 79°F
CDRF1 - Cedar Key, FL 55 mi54 min ENE 16 G 19 75°F 1021.4 hPa (+0.4)65°F
SAUF1 - St. Augustine, FL 56 mi54 min NE 20 G 22 78°F 79°F1022.2 hPa (+1.4)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 57 mi69 min ENE 12 79°F 1024 hPa66°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 mi61 minENE 10 G 2010.00 miOvercast78°F64°F64%1022.5 hPa
Keystone Airpark, FL16 mi59 minENE 99.00 miA Few Clouds79°F68°F70%1022 hPa

Wind History from GNV (wind in knots)
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Last 24hrN13N11NE11
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N9N8N11N9N7N6N5N5N6N7N8N8N6N6N7N7NE10NE10
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1 day agoN5NW73NW7NW4N5NW3NW5N4N6N6NE5N9NE6NE9N10NE11
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2 days agoNE5NE9NE9E7E7NE5E6E4NE4E3E3NE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Buffalo Bluff, St. Johns River, Florida
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Buffalo Bluff
Click for Map
Wed -- 03:14 AM EDT     2.14 feet High Tide
Wed -- 06:18 AM EDT     Moonrise
Wed -- 07:30 AM EDT     Sunrise
Wed -- 10:17 AM EDT     0.92 feet Low Tide
Wed -- 03:45 PM EDT     2.19 feet High Tide
Wed -- 06:34 PM EDT     Moonset
Wed -- 06:52 PM EDT     Sunset
Wed -- 10:37 PM EDT     0.95 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.922.12.11.81.51.31.21.10.911.41.722.12.221.71.41.21.111

Tide / Current Tables for Palatka, St. Johns River, Florida
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Palatka
Click for Map
Wed -- 02:34 AM EDT     2.36 feet High Tide
Wed -- 06:18 AM EDT     Moonrise
Wed -- 07:30 AM EDT     Sunrise
Wed -- 09:27 AM EDT     0.87 feet Low Tide
Wed -- 03:04 PM EDT     2.41 feet High Tide
Wed -- 06:34 PM EDT     Moonset
Wed -- 06:52 PM EDT     Sunset
Wed -- 09:48 PM EDT     0.92 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.82.12.32.32.11.81.51.31.10.90.91.31.722.32.42.321.61.41.210.91.2

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 (12,3,4,5)
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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.