Sunday, September24, 2017 L-36.com


Marine Weather and Tides
Laurel Bay, 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 7:11AMSunset 7:17PM Sunday September 24, 2017 2:52 AM EDT (06:52 UTC) Moonrise 10:15AMMoonset 9:20PM Illumination 13% Phase: Waxing Crescent; Moon at 4 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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AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 1258 Am Edt Sun Sep 24 2017
.small craft advisory in effect through Tuesday evening...
Overnight..NE winds 10 to 15 kt. Seas 5 to 7 ft.
Sun..NE winds 15 kt with gusts to 20 kt. Seas 5 to 7 ft, building to 6 to 8 ft in the afternoon.
Sun night..NE winds 10 to 15 kt. Seas 6 to 8 ft.
Mon..N winds 10 to 15 kt. Seas 6 to 8 ft, subsiding to 5 to 7 ft in the afternoon.
Mon night..N winds 5 to 10 kt. Seas 5 to 7 ft, subsiding to 4 to 6 ft after midnight.
Tue..N winds 10 to 15 kt. Seas 4 to 6 ft.
Tue night..N winds 10 kt. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
Wed..NW winds 10 to 15 kt. Seas 3 to 4 ft.
Wed night..W winds 5 to 10 kt. Seas 2 to 3 ft.
Thu..W winds 5 to 10 kt. Seas 1 foot.
Thu night..SW winds 5 to 10 kt. Seas 2 ft.
AMZ300 1258 Am Edt Sun Sep 24 2017
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail through this weekend. The high will weaken and shift inland as hurricane maria tracks northward off the southeast u.s. Coast into the first half of next week. A cold front may approach the forecast area late next week.

7 Day Forecast for Marine Location Near Laurel Bay, SC
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location: 32.49, -80.82     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 240522
afdchs
area forecast discussion
national weather service charleston sc
122 am edt Sun sep 24 2017

Synopsis
High pressure will prevail through this weekend. The high will
weaken and shift inland as hurricane maria tracks northward off
the southeast u.S. Coast into the first half of next week. A
cold front may approach the forecast area late next week.

Near term until 6 am this morning
On the midnight update: we lowered some inland readings a
degree or two in a few spots. Skies will remain mostly
clear with some high clouds at times. Still not enough
evidence to suggest any fog concerns as we near daybreak.

Layers of ground fog in cooler inland areas may occur but
nothing widespread.

Short term 6 am this morning through Tuesday
Models continue to show a relatively dry forecast through the
period with above normal temperatures. As maria moves northward,
it is still expected to remain well offshore. It will likely
put much of at least the land area under large scale subsidence
on the far western periphery of the circulation associated with
maria. Thus, have continued to keep out mention of any pops over
the land, with only isolated showers and thunderstorms over the
atlantic waters.

Low level winds will be north-northeast 10-15 mph during the day
through Monday, then back to north-northwest Tuesday as the
circulation of maria moves well north and east of the region. Any
afternoon seas breezes are expected to remain with 10-15 miles of
the coast. These winds, along with large scale subsidence, will keep
temperatures above normal, with highs in the mid to upper 80s and
lows in the mid 60s well inland, and lower 70s at the coast.

Long term Tuesday night through Saturday
Despite the presence of maria offshore, weak NVA under high pressure
should help mitigate precipitation chances locally, with the best
chances for showers thunderstorms occurring late week into early
next weekend associated with an approaching cold front. The front
appears poised to cross the appalachians Thursday into Friday, with
passage through the forecast area likely by early Saturday. Above
average temperatures are expected through the second half of the
week in advance of the front, with cooler temperatures and lower
dewpoints likely behind the front as cool high pressure builds back
into the area.

Aviation 06z Sunday through Thursday
Vfr conditions expected across kchs and ksav through the 06z
taf period. Winds are forecast to shift from the NE around
midnight and continue through Sunday. Deepening mixing and
momentum transfer should support low end gusts during the
daylight hours across sc, ksav should see less gust potential.

Extended aviation outlook: expect mainlyVFR conditions to
prevail at both kchs and ksav through early next week. There is
a small probability for some early morning flight restrictions
due to fog into early next week.

Marine
Ocwenight: swell from maria is moving through our waters. The
noaa buoys are reporting swell ranging from 4-6 ft and periods
anywhere from 11-14 seconds. Swell will continue to gradually
build tonight and small craft advisories are in effect for all
of the coastal waters.

Sunday through Thursday: still expect a prolonged period of
small craft advisories, mainly due to high seas as hurricane
maria tracks northward well off the southeast u.S. Coast later
this weekend and early next week. Winds will be north-northeast
15 to 20 knots through Monday, then backing to northwest 10 to
15 knots Tuesday through Thursday.

Seas will build through Sunday, peaking at 10 to 14 feet beyond 20
nm offshore, and mainly 6 to 10 feet out to 20 nm. Seas remain high
Monday, then start to slowly fall Tuesday and beyond as the
circulation from maria moves well north and east of the waters.

Rip currents: swell from hurricane maria will continue to
slowly build at the beaches as maria moves northward. The high
risk will continue into Sunday, with an elevated risk
persisting into Tuesday or maybe Wednesday.

Tides coastal flooding
Powerful surf created by offshore hurricane maria will drive
significant wave run-up, which could cause further beach erosion
this weekend into early next week. High surf advisories are in
effect Sunday and Monday. Also, the potential for shallow salt
water flooding will persist through early next week around the
times of high tide, particularly along the south carolina coast.

Chs watches warnings advisories
Ga... High rip current risk through this evening for gaz117-119-139-
141.

High surf advisory from 8 am this morning to 8 pm edt Monday
for gaz117-119-139-141.

Sc... High rip current risk through this evening for scz048>051.

High surf advisory from 8 am this morning to 8 pm edt Monday
for scz048>051.

Marine... Small craft advisory until 8 pm edt Tuesday for amz352.

Small craft advisory until 4 pm edt Wednesday for amz350-374.

Small craft advisory until 11 pm edt Monday for amz354.

Near term...

short term...

long term... Jmc
aviation...

marine...

tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACXS1 - ACE Basin Reserve, SC 20 mi68 min Calm 73°F 1015 hPa72°F
41033 26 mi45 min ENE 12 G 16 79°F 1021.3 hPa
FPKG1 - 8670870 - Fort Pulaski, GA 32 mi53 min ENE 11 G 13 79°F 81°F1014.9 hPa (-0.9)
FBIS1 - Folly Island, SC 51 mi53 min NNE 8.9 G 9.9 77°F 1015.5 hPa (-0.8)72°F

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beaufort, Marine Corps Air Station, SC5 mi57 minNE 510.00 miFair74°F73°F97%1014.9 hPa
Beaufort County Airport, SC11 mi58 minENE 77.00 miFair77°F71°F83%1014.6 hPa
Hilton Head Island, Hilton Head Airport, SC20 mi58 minNE 410.00 miFair79°F73°F84%1014.9 hPa

Wind History from NBC (wind in knots)
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Last 24hrN4N4N5N4N4NE5NE6N5NE8NE96E6E8E5E10E8E7E4E4E4NE3NE3NE5NE5
1 day agoNW3N4CalmCalmN3N4NE5N7N4E65E6NE5E4SE4E8NE4CalmCalmCalmCalmN5N4N6
2 days agoCalmW3N3CalmCalmCalmCalmW43CalmCalmCalm4S5SE53N6SE3CalmN5CalmCalmCalmNW3

Tide / Current Tables for RR. Bridge, Hall Island, South Carolina
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RR. Bridge
Click for Map
Sun -- 12:49 AM EDT     8.61 feet High Tide
Sun -- 06:49 AM EDT     0.61 feet Low Tide
Sun -- 07:12 AM EDT     Sunrise
Sun -- 11:14 AM EDT     Moonrise
Sun -- 01:21 PM EDT     8.78 feet High Tide
Sun -- 07:16 PM EDT     Sunset
Sun -- 07:23 PM EDT     0.96 feet Low Tide
Sun -- 10:19 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.38.67.96.44.52.61.10.61.4356.78.18.78.67.6642.21.11.22.345.8

Tide / Current Tables for North Dawson Landing, Coosawhatchie River, South Carolina
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North Dawson Landing
Click for Map
Sun -- 01:44 AM EDT     8.25 feet High Tide
Sun -- 07:13 AM EDT     Sunrise
Sun -- 07:35 AM EDT     0.66 feet Low Tide
Sun -- 11:15 AM EDT     Moonrise
Sun -- 02:16 PM EDT     8.40 feet High Tide
Sun -- 07:17 PM EDT     Sunset
Sun -- 08:09 PM EDT     1.04 feet Low Tide
Sun -- 10:19 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
788.27.564.12.20.90.81.73.35.16.77.88.48.27.15.53.61.91.11.42.64.2

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 Charleston, SC (2,6,7,8)
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Ground Weather Radar Station Charleston, SC
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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.