Friday, July21, 2017 L-36.com


Marine Weather and Tides
Fruit Cove, 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 6:38AMSunset 8:27PM Friday July 21, 2017 6:43 PM EDT (22:43 UTC) Moonrise 3:45AMMoonset 5:52PM 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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AMZ452 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- 306 Pm Edt Fri Jul 21 2017
Tonight..South winds 10 to 15 knots becoming west southwest 5 to 10 knots after midnight. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms after midnight.
Saturday..South southwest winds 5 to 10 knots becoming south southeast 10 to 15 knots in the afternoon. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Saturday night..West southwest winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms through the night.
Sunday..Southwest winds 5 to 10 knots becoming south 15 to 20 knots in the afternoon. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Sunday night..Southwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Monday..Southwest winds 5 to 10 knots becoming south southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Monday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Tuesday..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Tuesday night..Southwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Wednesday..South winds 5 to 10 knots. Seas 2 to 3 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- 306 Pm Edt Fri Jul 21 2017
Synopsis.. Surface high pressure will be east southeast of the region through the early part of next week. A trough of low pressure will sink southeast across the region and dissipate toward the middle of next week.

7 Day Forecast for Marine Location Near Fruit Cove, FL
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location: 30.07, -81.61     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 212030
afdjax
area forecast discussion
national weather service jacksonville fl
430 pm edt Fri jul 21 2017

Near term tonight and Saturday
Convection will very slowly build on both seabreezes as they
press inland this afternoon, more so on the gulf breeze. Activity
will become enhanced around the time of sunset as the seabreezes
and outflow boundaries all come together across the interior.

Coastal areas will remain mostly dry as the seabreeze stabilizes
the airmass.

Storms across the interior this evening will tend to have a slow
and erratic storm movement but most of the activity should tend to
slowly drift back off towards our western zones this evening due
to the easterly flow aloft. Instability not expected to be quite
as high as yesterday but still high enough to support an isolated
severe storm or two. The main threats with the strongest storms
will be localized damaging wind gusts and locally heavy rainfall.

Very localized potential for large hail as well given 500 mb temps
of -9c with mid level low directly overhead. Diurnal storms should
wrap up by late evening but additional late night showers will be
possible across our southern zones as deeper moisture lifts up
from the south.

Prevailing flow will become southwesterly on Saturday.

Showers storms will get off to an earlier start across our western
zones as moist southwest flow pushes the gulf seabreeze in early.

Storms across northeast florida will build toward the atlantic
coast Saturday afternoon with an increase in intensity and
coverage expected late in the day near the i-95 corridor as the
dominant gulf seabreeze slams into a slow moving atlantic
seabreeze. Scattered to numerous storms will be possible across
northeast florida in the afternoon with the highest chances south
of a line from gainesville to st augustine. Drier air across
southeast georgia will keep convection more isolated there on
Saturday with MAX temps several degrees above normal with heat
indices topping out around 105 degrees. MAX temps will be near
normal across our southern zones due to increased cloud cover with
early start to showers storms off the gulf. Temps will also be
hotter at the beaches due to a much later start to the seabreeze.

Short term Saturday night through Monday night
Deep-layered atlantic ridging will build westward across south
florida, creating a deepening southwesterly flow pattern.

Convection will initiate during the morning hours along an active
gulf coast sea breeze, and this convection will progress eastward
during the afternoon. Convection will likely pulse as it
encounters a pinned atlantic sea breeze along or just east of
interstate 95 during the mid to late afternoon hours, with strong
to isolated severe thunderstorms possible in coastal locations.

Wet microbursts and excessive lightning strikes will be the
primary threats from this activity along and east of i-95 during
the late afternoon hours on Sunday and Monday. Convection should
push into the atlantic coastal waters by sunset each day, with the
evening hours remaining mostly dry inland from Saturday through
early next week. Highs will generally climb into the lower 90s,
with southwest winds delaying the development of the atlantic sea
breeze until the early to mid afternoon hours, resulting in highs
at or above 90 at area beaches on Sunday and Monday. An earlier
start to convection should keep heat index values in check at
inland locations, with daily maxes generally around 100. Lows will
generally range from the mid 70s inland to near 80 at the
beaches.

Long term Tuesday through Friday
Deep-layered atlantic ridging will extend across the florida
peninsula on Tuesday, keeping a similar weather pattern from the
weekend and Monday in place, featuring a dominant gulf coast sea
breeze pattern with scattered to numerous thunderstorms
progressing eastward across our region, mainly during the
afternoon hours. Highs will again climb into the lower 90s for
most locations, including the coast, as a deep southwesterly flow
pattern remains in place which will delay the development of the
atlantic sea breeze until early to mid afternoon. Ridging aloft
will then build over the southern plains states, which will drive
a deepening trough into alabama, georgia, and the florida
panhandle by late Wednesday. This weather pattern will promote
scattered to numerous showers and thunderstorms developing at any
time, with temperatures generally near late july climo. Long-term
models currently disagree on how far south this trough will move
before weakening by late next week, with model blends yielding
near climo rain chances and temperatures for next Friday at this
time. There are indications that ridging over the plains will
begin to expand eastward into the southeastern states towards the
end of next week, which could advect some drier air aloft into
southeast georgia by late Friday.

Aviation
MainlyVFR conditions to prevail through the next 24 hours. Storms
this afternoon are expected to concentrate late in the day across
the interior. Gnv could see another round of very heavy rain with
this activity, depending on exactly where it comes together. Have
shown a 2 hour tempo group for thunderstorms at gnv around the
time of sunset today. More specific details (lifr, gusty winds)
may need to be added as we go through the afternoon and the
situation begins to unfold.

Marine
Surface high pressure will be east southeast of the region
through the early part of next week. A trough of low pressure
will sink southeast across the region and dissipate toward the
middle of next week.

Rip currents: moderate risk through Saturday.

Climate
Fifty days into meteorological summer, a whopping 28.26 inches of
rainfall has been measured at the gainesville regional airport.

14.08 of this has fallen in july, placing the monthly record of
16.65 (set in 2013) in jeopardy. The wettest meteorological summer
on record at gainesville occurred in 1965, when 32.55 inches of
rainfall was measured. Rainfall records at gainesville date back
to july of 1890.

Preliminary point temps pops
Amg 73 94 74 93 30 20 20 60
ssi 75 92 81 90 10 20 20 60
jax 72 93 75 91 10 40 20 70
sgj 75 91 77 91 10 40 20 50
gnv 71 91 73 89 40 50 20 60
ocf 72 90 74 88 30 60 30 50

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Nelson shuler mcginnis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BKBF1 9 mi43 min ESE 7 G 9.9 89°F 91°F
RCYF1 19 mi43 min 91°F
JXUF1 20 mi43 min 89°F
DMSF1 22 mi43 min 86°F
LTJF1 23 mi43 min 86°F 73°F
NFDF1 23 mi43 min E 8.9 G 11 88°F 1017 hPa (-0.3)72°F
BLIF1 23 mi43 min ESE 8.9 G 12 87°F 1017.3 hPa (-0.5)72°F
SAUF1 - St. Augustine, FL 23 mi43 min S 15 G 16 82°F 84°F1016.7 hPa (-1.1)77°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 25 mi43 min SE 7 G 9.9 85°F 80°F1016.9 hPa (-0.6)
41117 29 mi51 min 83°F2 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 35 mi58 min SSE 7 88°F 1018 hPa76°F
FRDF1 - 8720030 - Fernandina Beach, FL 43 mi43 min SE 8.9 G 14 86°F 84°F1017.3 hPa (-0.4)
41112 - Offshore Fernandina Beach, FL (132) 47 mi43 min 83°F2 ft

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Naval Air Station, FL12 mi50 minESE 1110.00 miPartly Cloudy92°F71°F51%1015.7 hPa
Northeast Florida Regional Airport, FL16 mi47 minSSE 910.00 miFair87°F73°F65%1016.7 hPa
Cecil Airport, FL18 mi53 minSSE 610.00 miPartly Cloudy91°F73°F56%1015.6 hPa
Jacksonville Craig Municipal Airport, FL19 mi50 minSE 810.00 miFair87°F71°F59%1016.2 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL24 mi51 minSE 1210.00 miPartly Cloudy87°F73°F63%1016.2 hPa

Wind History from NIP (wind in knots)
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Last 24hrSE8E7N6SE9W6W7W4CalmCalmSW3W4CalmW3CalmS3CalmNE5E43N54E11E11SE11
1 day agoSE10SE8SE9S10SE5SE84W4W4W5W6W3CalmW3CalmCalmSE5CalmCalm4E16
G20
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2 days agoE9E9E5S5S6SW4SW4W3W3NW3NW3W3CalmNW3NW3N7N4N4NE7NE9NE6E7E9E7

Tide / Current Tables for Julington Creek, Florida
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Julington Creek
Click for Map
Fri -- 04:45 AM EDT     Moonrise
Fri -- 06:19 AM EDT     -0.16 feet Low Tide
Fri -- 06:38 AM EDT     Sunrise
Fri -- 11:23 AM EDT     0.68 feet High Tide
Fri -- 06:22 PM EDT     -0.39 feet Low Tide
Fri -- 06:51 PM EDT     Moonset
Fri -- 08:26 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.70.50.30.1-0.1-0.2-0.10.10.30.60.70.70.60.40.1-0.1-0.3-0.4-0.3-0.10.20.60.8

Tide / Current Tables for Green Cove Springs, St. Johns River, Florida
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Green Cove Springs
Click for Map
Fri -- 04:45 AM EDT     Moonrise
Fri -- 06:29 AM EDT     4.24 feet Low Tide
Fri -- 06:39 AM EDT     Sunrise
Fri -- 11:55 AM EDT     4.95 feet High Tide
Fri -- 06:37 PM EDT     4.07 feet Low Tide
Fri -- 06:51 PM EDT     Moonset
Fri -- 08:26 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.154.84.64.54.44.34.34.54.74.84.954.94.74.44.34.24.14.14.34.64.85

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 (18,4,5,8)
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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.