Friday, January18, 2019 L-36.com


Marine Weather and Tides
Beaufort, SC

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:22AMSunset 5:44PM Friday January 18, 2019 5:46 PM EST (22:46 UTC) Moonrise 3:17PMMoonset 4:38AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 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- 322 Pm Est Fri Jan 18 2019
.small craft advisory in effect from Saturday evening through late Sunday night...
Tonight..SW winds 5 kt, becoming s. Seas 1 foot.
Sat..S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt in the afternoon. Seas 2 to 3 ft.
Sat night..S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 4 to 6 ft, building to 5 to 7 ft after midnight. Rain with a slight chance of tstms.
Sun..W winds 20 to 25 kt with gusts to 30 kt. Seas 5 to 7 ft, subsiding to 4 to 5 ft in the afternoon. A chance of showers in the morning.
Sun night..NW winds 15 to 20 kt with gusts to 25 kt. Seas 2 to 3 ft.
Mon..N winds 10 to 15 kt. Seas 2 ft.
Mon night..NE winds 10 kt. Seas 1 to 2 ft.
Tue..E winds 10 kt. Seas 2 ft.
Tue night..SE winds 10 kt. Seas 2 ft. A slight chance of showers.
Wed..S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
Wed night..SW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 322 Pm Est Fri Jan 18 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will move offshore through tonight. A powerful storm system will impact the area Saturday night into Sunday, followed by cold, dry high pressure early next week. A strong cold front will affect the area Wednesday night into Thursday.


7 Day Forecast for Marine Location Near Beaufort, SC
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location: 32.44, -80.67     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 182049
afdchs
area forecast discussion
national weather service charleston sc
349 pm est Fri jan 18 2019

Synopsis
High pressure will move offshore through tonight. A powerful
storm system will impact the area Saturday night into Sunday,
followed by cold, dry high pressure early next week. A strong
cold front will affect the area Wednesday night into Thursday.

Near term until 6 am Saturday morning
This evening and tonight: high pressure under a zonal flow aloft
will gradually slide offshore as a subtle warm front develops to the
west southwest. Most guidance suggests a few showers developing over
inland areas of southeast georgia this evening, the spreading north
into southeast south carolina later tonight as the warm front lifts
north. The front should then continue to shift north of the area by
daybreak Saturday. Low temps are expected to remain more mild
than the previous night as a light southerly wind prevails under
abundant clouds near and to the south of the warm front. In
general, temps should only dip to around 50 degrees inland to
lower 50s near the coast. Despite mild overnight temps, sfc
dewpts will also be around 50 overnight, which suggests at least
some potential for patchy fog to develop late tonight should
breaks in cloud cover occur. At this time, abundant cloud cover
should limit fog potential and will remain out of the forecast.

Short term 6 am Saturday morning through Monday
Saturday: a warm front will be located across northern south
carolina by daybreak with southeast south carolina and southeast
georgia poised to remain solidly within the warm sector of a storm
system organizing over the mid-mississippi valley. While a stray,
isolated shower could brush the far western and northern portions of
the forecast area Saturday morning within a region of weak
isentropic ascent, most of the day will remain rain-free and
quite warm with highs warming into the lower 70s away from the
beaches. Rain chances will increase rapidly from west-east
during the evening hours as a broad area of rainfall ahead of an
approaching cold front moves across the region. Strong moisture
transport of 250-280 g kg out of the gulf of mexico coupled
with region of strong, deep- layered dpva forcing for assent
ahead of a powerful upper trough digging across the eastern
united states will support a band of moderate to locally heavy
rainfall along ahead of the cold front with rainfall amounts
averaging around 0.5 inch. There looks to be enough surface and
elevated instability to maintain a mention of a slight chance of
tstms, but severe weather is not expected this far to the east.

Rain chances will quickly diminish from west-east as daybreak
Sunday approaches and the cold front shifts offshore. Pops will
be raised to 100% with overnight lows ranging from the upper 40s
well inland to the mid 50s along the lower south carolina
coast.

Sunday and Monday: the strong cold front will clear the coast by
sunrise Sunday with intense cold air advection quickly spreading in
from the west. High temperatures Sunday will recover little from the
morning lows, only warming 3-4 degrees as h8 temperatures fall
during the day. Skies will be slow to clear as extensive cold air
cumulus is likely to develop as the h5 cold pocket (-21c) associated
powerful upper trough swings through. This should keep skies rather
cloudy for much of the day with rapidly clearing occurring Sunday
evening after insolation ceases with sunset. Lows Monday morning
will bottom out in the upper 20s to lower 30s for most locations
with a few mid 20s possible across some sheltered areas. Although
winds will be diminishing, north winds of 5-10 mph will yield
minimum wind chills from the upper teens to mid 20s around sunrise
Monday. This is above both the inland and coastal wind chill
advisory thresholds of 10 and 15 degrees respectively. Monday looks
to remain quite chilly as the cold h8 temperatures occur during this
time. Despite sunny skies, highs will only warm into the lower 40s
across the charleston tri-county area to the upper 40s near 50
across southeast georgia.

Lake winds: strong post-frontal cold air advection will support at
least gusts to 25 kt on lake moultrie Sunday in the wake of a strong
cold front. A lake wind advisory will likely be needed. Unsure how
much southerly mixing will occur over the cold waters Saturday night
ahead of the front. Depending on how strong the pre-frontal wind
fields get, the advisory could be needed as Saturday night. Waves
will peak 1-2 ft, mainly central and eastern portions of the lake.

Long term Monday night through Friday
High pressure will prevail Monday night through Tuesday night,
then another system will likely bring another round of
precipitation to the area Wednesday night into Thursday.

Aviation 21z Friday through Wednesday
Vfr conditions should prevail this evening and early tonight at both
chs and sav terminals before MVFR CIGS return around 04-05z tonight
with a warm front passing near the area. MVFR conditions should then
persist through 14z Saturday at both terminals, before winds become
more southerly and gust to 15-20 kt by 17-18z Saturday.

Extended aviation outlook: extended aviation outlook: high confidence
in ifr and MVFR CIGS vsbys impacting the the terminals Saturday
night as a large area of rain associated with a cold front
pushes through. Expect rapidly improving conditions Sunday
morning as the rain pushes offshore, although clouds will linger
through the day. Gusty winds near 20 kt will occur Sunday
within a strong, post-frontal cold air advection regime.

Marine
This evening and tonight: high pressure will prevail over the
coastal waters into the evening and early tonight, before a warm
front approaches the coast, then slowly lifts north across the area
later tonight. Conditions will remain well below small craft
advisory levels through daybreak Saturday. In general, southwest
winds will turn more south southeast overnight and remain at or
below 5-10 kt. Seas will range between 1-2 ft.

Saturday and Sunday: hazardous marine conditions will dominate for
much of this period. Pre-frontal low-level jetting ahead of an
approaching cold front will support south winds increasing to 20-25
kt with gusts 30 kt nearshore waters and 25-30 kt with gusts to 35
kt georgia offshore waters beginning Saturday evening then
persisting into Sunday in a west strong, post-frontal cold air
advection regime in the wake of a cold front. There is some
uncertainty on the gust potential Saturday evening across the
nearshore waters within the pre-frontal warm air advection regime,
but suspect there will be enough suppression across the cold shelf
waters within 20 nm to keep frequent gusts below gale force. Warmer
waters over the georgia offshore waters will more easily support
gusts 35 kt to perhaps 40 kt, especially beyond 40 nm. Small craft
advisories will be posted for all nearshore zones with a gale watch
for the georgia offshore leg beginning Saturday evening then ending
Sunday evening as conditions improve. Opted to not issue a 3rd
period small craft advisory for the charleston harbor as the mixing
profile seems a bit marginal. Seas will peak 4-8 ft nearshore waters
and as high as 10 ft over the georgia offshore waters.

Monday through Wednesday: high pressure will build over the waters
later Monday into mid late week, resulting in quiet conditions.

Tides coastal flooding
Tide levels will be increasing this weekend through the middle
of next week due to astronomical factors. A positive tidal
anomaly is also possible due to wind forcing, potentially
leading to minor coastal flooding with the morning high tides.

The greatest chance for this to occur will be Saturday morning and
Tuesday morning. Blow out tides are also possible with low tide
Sunday and Sunday night Monday morning with levels dropping to -1 to
-2 ft mllw.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... Small craft advisory from 10 pm Saturday to 1 am est Monday
for amz350-352-354.

Gale watch from Saturday evening through Sunday evening for
amz374.

Near term... Dpb
short term... St
long term... Jrl
aviation... Dpb st
marine... Dpb st
tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACXS1 - ACE Basin Reserve, SC 14 mi122 min WSW 1.9 64°F 1019 hPa54°F
41033 18 mi39 min SE 3.9 G 5.8 57°F 1018.3 hPa
FPKG1 - 8670870 - Fort Pulaski, GA 31 mi47 min S 4.1 G 6 59°F 55°F1019 hPa (+0.0)
FBIS1 - Folly Island, SC 45 mi47 min SSW 6 G 7 57°F 1019.4 hPa (+0.0)52°F
CHTS1 46 mi47 min S 6 G 7 58°F 55°F1018.7 hPa (+0.0)

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beaufort County Airport, SC3 mi72 minN 07.00 miPartly Cloudy61°F53°F77%1018.6 hPa
Beaufort, Marine Corps Air Station, SC4 mi51 minWNW 310.00 miMostly Cloudy63°F54°F73%1018.9 hPa
Hilton Head Island, Hilton Head Airport, SC15 mi57 minSSE 310.00 miMostly Cloudy59°F51°F77%1019.3 hPa

Wind History from NBC (wind in knots)
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Last 24hrS4S5SW3NW4S3N3CalmCalmSE3CalmCalmCalmSW3CalmCalmCalm--W5NW7N3W6W53NW3
1 day agoS3CalmCalmCalmCalmCalmCalmCalmCalmSW3CalmCalmCalmCalmCalmCalmCalmS5SE5S5S7SE9SE8SE5
2 days agoNW4N5CalmCalmCalmCalmSW3CalmCalmCalmCalmW4NW4NW3CalmW4CalmCalm663W4W4SW4

Tide / Current Tables for Beaufort, Beaufort River, South Carolina
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Beaufort
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Fri -- 04:38 AM EST     Moonset
Fri -- 06:21 AM EST     8.15 feet High Tide
Fri -- 07:23 AM EST     Sunrise
Fri -- 12:36 PM EST     -0.09 feet Low Tide
Fri -- 03:17 PM EST     Moonrise
Fri -- 05:42 PM EST     Sunset
Fri -- 06:47 PM EST     6.94 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.50.11.73.85.87.38.1875.23.21.30.1-00.92.54.25.76.76.96.34.930.9

Tide / Current Tables for Parris Island, Marine Corps Recruit Depot, Beaufort River, South Carolina
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Parris Island
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Fri -- 04:37 AM EST     Moonset
Fri -- 05:47 AM EST     7.66 feet High Tide
Fri -- 07:23 AM EST     Sunrise
Fri -- 12:12 PM EST     -0.00 feet Low Tide
Fri -- 03:17 PM EST     Moonrise
Fri -- 05:42 PM EST     Sunset
Fri -- 06:16 PM EST     6.58 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.20.92.64.66.37.47.675.742.30.800.31.53.14.75.96.56.45.43.92.10.4

Weather Map and Satellite Images
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GOES Local Image of Southeast    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.
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Wind Forecast for Charleston, SC (17,4,5,8)
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Ground Weather Radar Station Charleston, SC
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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.