Sunday, October22, 2017 L-36.com


Marine Weather and Tides
Blacksburg, SC

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 7:38AMSunset 6:42PM Sunday October 22, 2017 6:38 PM EDT (22:38 UTC) Moonrise 9:07AMMoonset 7:52PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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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AMZ450 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- 258 Pm Edt Sun Oct 22 2017
.small craft exercise caution...
Tonight..Southeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Inland waters a moderate chop. Showers likely in the evening, then a chance of showers after midnight.
Monday..South winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Inland waters a moderate chop. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Monday night..Southwest winds 15 to 20 knots becoming west 10 to 15 knots in the morning. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Inland waters a moderate chop. Showers likely and a chance of Thunderstorms in the evening, then a chance of showers and a slight chance of Thunderstorms after midnight.
Tuesday..Northwest winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms in the morning.
Tuesday night..Northwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a moderate chop.
Wednesday and Wednesday night..Northwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters choppy.
Thursday..West northwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop.
Thursday night..South winds 5 to 10 knots becoming west southwest after midnight. Seas 1 to 2 feet. Inland waters a light chop.
Friday..North northeast winds 5 to 10 knots becoming east southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Inland waters a light chop.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 258 Pm Edt Sun Oct 22 2017
Synopsis.. High pressure continues to strengthen northeast of the area waters. A strong cold front will sweep across the region from the west Monday into early Tuesday. A strong line of storms will be possible as this front moves across the area. High pressure will build over the region the remainder of the week.

7 Day Forecast for Marine Location Near Kings Bay Base, GA
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location: 30.77, -81.48     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 221933
afdjax
area forecast discussion
national weather service jacksonville fl
333 pm edt Sun oct 22 2017

Near term Through Monday... Warm afternoon with scattered
showers continuing to develop across the atlantic waters and
northeast florida. Expect trend to continue and coverage to move
north through the afternoon. A few rumbles of thunder are possible
especially across the waters and south of i-10 in northeast
florida as SBCAPE has risen to 2000-3000 j kg. Convection should
wane with the loss of heating over all but the waters, and
overnight lows in the low to mid 70s are expected.

The main weather feature continues to be an approaching cold front
currently draped across the ARKLATEX region, with swath of
prefrontal convection extending eastward mississippi and alabama.

Pwats have steadily increased over the weekend, and will do so
markedly tonight and tomorrow as flow turns southerly -
approaching 2 inches tomorrow ahead of the front, which is well
above the 90th percentile for late october. GFS remains the
fastest and most aggressive with prefrontal convection and fropa.

For now have kept main line of convection arriving Monday morning
and spreading eastward through the evening hours. Bulk shear
values increase to around 30 knots Monday afternoon, especially
across southeastern georgia closer to shortwave energy before it
washes out Monday night. A few strong to severe storms are
possible with damaging winds the most likely hazard as freezing
levels remain high and not much CAPE in the hail growth zone. An
isolated tornado is not out of the question, though right now the
timing isn't quite lining up with highest instability low level
shear. Front should be through most of the area by early Tuesday
morning.

Monday night through Wednesday night... Weakening upper short wave
trough with deep moisture will be shifting off the east coast
around 00z Tuesday. Low level moisture with a chance of rain will
continue Monday night until the cold front moves through the area
late Monday night. Strong high pressure will build into the
southern plains which will bring in a much cooler and drier
airmass to the southeast on Tuesday. A tight pressure gradient
will continue through Wednesday producing breezy conditions. Low
temperatures will be below normal Tuesday night and Wednesday
night with lows in the low mid 40s inland to the upper 40s low 50s
coast. Daytime highs on Tuesday will be near normal. A secondary
cold front will push through Tuesday evening with below normal
high temperatures on Wednesday.

Long term Thursday through Sunday... A dry cool airmass will
continue on Thursday as surface high center moves over SE ga ne
fl. Below normal temperatures will continue Thursday and Thursday
night with light winds and mostly clear skies. Surface high will
move NE into the western atlantic by Friday with a moistening
return low level flow developing over the se. An approaching
upper trough and cold front will bring increasing rain chances
next weekend.

Aviation Vfr conditions are expected this afternoon and most
of this evening, though ceilings along the coast are expected to
linger through the overnight hours. Have left low endVFR bkn035
ceilings but some guidance suggests that bases closer to MVFR are
possible. Isolated showers are possible along the coast and just
west of i-95. Winds will remain easterly around 10 to 15 knots
with some occasional gusts near 20 knots.

Marine Solid small craft exercise caution (scec) conditions will
continue into early next week. Waves and winds could occasionally
touch small craft advisory (sca) in offshore zones, but think it
will be marginal and brief. East to southeast winds at 15-20 knots
and seas 4-6 ft will slowly shift southerly on Monday. Winds will
be close to 20 knots but still expected to remain just below
advisory levels with the frontal passage. Offshore winds are
expected early Tuesday morning as the front moves through and
remain offshore until the end of the workweek.

Rip currents: with continued onshore flow and elevated surf swells
will continue high risk one more day, then moderate on Monday.

Preliminary point temps pops
Amg 72 79 59 75 30 70 50 0
ssi 75 79 67 79 60 60 60 10
jax 74 82 65 79 20 50 50 10
sgj 75 82 68 79 20 50 50 20
gnv 73 81 64 79 20 60 60 10
ocf 73 81 66 80 20 50 60 10

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

Coastal flood advisory until 6 am edt Monday for clay-coastal
duval-flagler-inland duval-st. Johns.

Coastal flood warning until 6 am edt Monday for putnam.

Ga... High rip current risk through late tonight for coastal camden-
coastal glynn.

Am... None.

Elsenheimer zibura mcginnis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 7 mi50 min E 5.1 G 8.9 76°F 78°F1020.3 hPa
41112 - Offshore Fernandina Beach, FL (132) 11 mi38 min 76°F6 ft
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 26 mi50 min ESE 7 G 11 77°F 78°F1019.6 hPa
BLIF1 26 mi50 min ESE 9.9 G 13 77°F 1020.3 hPa77°F
LTJF1 27 mi50 min 77°F 72°F
DMSF1 27 mi50 min 78°F
JXUF1 30 mi50 min 78°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 54 mi48 min SE 12 G 16 76°F 78°F5 ft1020.2 hPa (-0.6)71°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Shelby Municipal Airport, NC14 mi53 minE 410.00 miPartly Cloudy74°F58°F57%1024 hPa
Gastonia Municipal Airport, NC20 mi44 minE 310.00 miMostly Cloudy75°F59°F58%1023.3 hPa
Rock Hill, Rock Hill - York County Airport, SC23 mi44 minSE 310.00 miOvercast76°F60°F58%1023.2 hPa

Wind History from FHB (wind in knots)
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Last 24hrCalm----------------------------------------------
1 day ago------------NE12--NE12------------------------NE12----
2 days ago------------------------------------------------

Tide / Current Tables for Seacamp Dock, Cumberland Island, Georgia
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Seacamp Dock
Click for Map
Sun -- 04:55 AM EDT     0.28 feet Low Tide
Sun -- 07:33 AM EDT     Sunrise
Sun -- 09:59 AM EDT     Moonrise
Sun -- 11:30 AM EDT     7.07 feet High Tide
Sun -- 05:33 PM EDT     0.51 feet Low Tide
Sun -- 06:46 PM EDT     Sunset
Sun -- 09:00 PM EDT     Moonset
Sun -- 11:42 PM EDT     6.25 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.153.51.90.70.30.92.13.65.16.3776.24.83.11.60.70.61.42.74.15.36.1

Tide / Current Tables for Chester, Bells River, St. Marys River, Florida
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Chester
Click for Map
Sun -- 04:53 AM EDT     -0.41 feet Low Tide
Sun -- 07:33 AM EDT     Sunrise
Sun -- 09:59 AM EDT     Moonrise
Sun -- 11:42 AM EDT     6.49 feet High Tide
Sun -- 05:31 PM EDT     -0.13 feet Low Tide
Sun -- 06:47 PM EDT     Sunset
Sun -- 09:00 PM EDT     Moonset
Sun -- 11:51 PM EDT     5.76 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.74.631.30-0.40.21.42.94.45.66.36.55.84.42.610-00.823.44.75.5

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.