Monday, August26, 2019 L-36.com


Marine Weather and Tides
Jacksonboro, SC

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:49AMSunset 7:53PM Monday August 26, 2019 5:29 AM EDT (09:29 UTC) Moonrise 1:28AMMoonset 4:04PM Illumination 18% Phase: Waning Crescent; Moon at 25 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
    EDIT      (on/off)   Help
AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 319 Am Edt Mon Aug 26 2019
Today..NE winds 15 to 20 kt early, diminishing to 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft this afternoon. A slight chance of showers and tstms this afternoon.
Tonight..E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight.
Tue..E winds 5 to 10 kt. Seas 2 ft. A slight chance of showers and tstms.
Tue night..SE winds 5 to 10 kt, becoming S after midnight. Seas 2 ft. A chance of showers and tstms.
Wed..S winds 5 kt. Seas 2 ft. A chance of showers and tstms.
Wed night..S winds 5 to 10 kt, becoming sw after midnight. Seas 2 ft. A chance of showers and tstms.
Thu..NE winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Thu night..E winds 10 kt. Seas 2 ft. A chance of showers and tstms.
Fri..E winds 10 kt. Seas 2 ft. A chance of showers and tstms.
Fri night..E winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 319 Am Edt Mon Aug 26 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail inland today, while a stationary front lingers to the south. The front will lift back north into the area on Tuesday. Meanwhile, low pressure is expected to pass well off the southeast coast. A cold front will cross the region later in the week, then stall in the vicinity into the weekend.


7 Day Forecast for Marine Location Near Jacksonboro, SC
   Hourly   EDIT   Help
location: 32.63, -80.47     debug


Area Discussion for - Charleston, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kchs 260801
afdchs
area forecast discussion
national weather service charleston sc
401 am edt Mon aug 26 2019

Synopsis
High pressure will prevail inland today, while a stationary
front lingers to the south. The front will lift back north into
the area on Tuesday. Meanwhile, low pressure is expected to
pass well off the southeast coast. A cold front will cross the
region later in the week, then stall in the vicinity into the
weekend.

Near term through tonight
Today: we're off to another "cool" start with a high pressure
wedge again anchored in place over the local area. Meanwhile, a
stationary front found near the georgia florida border will lift
a little northward late, while a broad and elongated low will be
located about midway between savannah and bermuda as it drifts
eastward. At the same time in the mid and upper levels, a trough
will push east through the mississippi valley, while an
anticyclone centered over southern florida pokes north over the
local vicinity. There doesn't appear to be much chance of
convective rains until maybe late in the day, with large
subsidence in place and really no significant trigger other
than the sea breeze. However, as we get into the evening, the
stationary front will get some impetus to lift closer to our
georgia counties, aided by the gulf sea breeze and short wave
energy embedded in the upstream trough. We'll carry just 20% pop
over parts of southeast georgia after 3-5 pm, where the best
theta-e ridging and highest pwat will occur. Temps will be
somewhat problematic, highly dependent upon the cloud cover,
which looks to average 60-70% throughout. Our MAX temp forecast
is a blend of the rap, hrrr and MOS guidance, which supports mid
and upper 80s everywhere inland from the immediate shoreline.

Tonight: the upstream trough dampens as it heads toward the
area where mid and upper ridging persists. At the surface the
inland wedge continues, while the atlantic low meanders several
hundred miles east of charleston and the stationary front
nudges a little closer from the south-southwest. A fairly decent
band of convection near and along the front will make a run
toward our southwest and west zones, but with the instability
waning, we don't have anything more than isolated to scattered
showers and maybe a few t-storms over our central and southern
counties. The air mass becomes more modified, so it won't be
quite as "cool" as this morning.

Short term Tuesday through Thursday
Surface high pressure extending down from the north will weaken on
Tuesday as a stalled front south of the area lifts back north. A
weak wave of low pressure looks to develop along the front which
will then drift into the area Tuesday night. Concurrently, a
dampening shortwave trough and associated vort energy will move
across the region. It should be a fairly active day especially in
the georgia zones. Further north, areas around the charleston tri-
county could see very little precip. Rain chances will peak in the
afternoon and evening hours, however some activity will likely
persist into the overnight with the boundary low in the vicinity.

On Wednesday, a cold front will approach from the west through the
day, then cross the local area Wednesday night into early Thursday.

Models are in good agreement that the front will stall near the
coast and linger in the vicinity thereafter. Convection will be
possible Wednesday ahead of the front as pwats surge. A stronger
storm or two is possible, but with modest instability the widespread
severe threat appears to be low. The proximity of the stalled
front trough axis will determine rain chances on Thursday. For now,
maintained chance (30-40%) pops with the gradient trending from
lower inland to highest at the coast.

Highs will be within a couple degrees of normal through the period,
however temperatures will be warming each day. Lows will mainly be
in the low to mid 70s.

Long term Thursday night through Sunday
Models are in fairly good agreement in the long term period. A
stalled front will be meandering in the vicinity late week before
largely dissipating. Weak high pressure should then prevail over the
weekend. Persistent onshore flow will keep abundant moisture in
place. This in combination with passing shortwave energy will
support healthy shower and thunderstorm chances, mainly during the
daytime hours. Seasonable temperatures are expected through the
period.

Aviation 07z Monday through Friday
Vfr with prevail with the 06z forecast for ksav and kchs,
although there could be a period of MVFR ceilings a couple of
hours either side of daybreak as moisture gets trapped beneath
the inversion.

Extended aviation outlook: brief flight restrictions are possible
with showers thunderstorms Tuesday through late week.

Marine
Today and tonight: the synoptic pattern features an inland high
pressure wedge, a stationary front to the south, and low pressure
to the east. This will result in a fairly tight pressure
gradient this morning, and a continuation of the ongoing small
craft advisories for both amz350 (for wind gusts as high as 25
kt) and for amz374 (for seas of 6 feet).

The gradient relaxes enough this afternoon and tonight that
winds and seas will gradually decrease, and no additional
advisories will be necessary, even though the atlantic low could
get a little better organized.

Tuesday through Saturday: no marine concerns are expected through
the period. High pressure to the north will weaken on Tuesday
allowing winds to become more southeasterly. A cold front will
approach from the west on Wednesday then enter the waters early
Thursday. The front will linger in the vicinity late week
before dissipating. The pattern will promote generally onshore
flow late week into the weekend. Conditions will remain well
below small craft advisory criteria with wind speeds of 15 knots
or less, and seas 2 to 3 feet on average.

Rip currents: increasing astronomical influence and onshore winds
could contribute to an enhanced risk of rip currents on area beaches
later this week.

Tides coastal flooding
Tide levels have responded to the more favorable northeast winds
of yesterday and last night, which will continue today, leading
to decent positive departures. The 5 pm high tide is a cause for
concern in charleston harbor, as we will likely require a
coastal flood advisory for shallow salt water flooding. Tide
levels in the savannah fort pulaski area will not reach advisory
levels with the late day high tide.

Elevated tide levels are expected this week with the approach of the
lunar perigee and new moon this Friday. Coastal flooding will be
likely during the evening high tide cycles, especially during the
latter half of the week. In addition, there is the potential for
some heavy rain around the times of high tide which could exacerbate
any flooding issues.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... Small craft advisory until noon edt today for amz374.

Small craft advisory until 7 am edt this morning for amz350.

Near term...

short term...

long term...

aviation...

marine...

tides coastal flooding...



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACXS1 - ACE Basin Reserve, SC 5 mi104 min N 1.9 68°F 1016 hPa64°F
41033 24 mi81 min NE 14 G 18 74°F 85°F1015.9 hPa
CHTS1 31 mi59 min N 8 G 11 71°F 84°F1016.3 hPa
FBIS1 - Folly Island, SC 31 mi89 min N 9.9 G 12 71°F 1016.7 hPa (-1.0)65°F
41029 - Capers Nearshore (CAP 2) 46 mi81 min NE 14 G 14 73°F 84°F1015.9 hPa
FPKG1 - 8670870 - Fort Pulaski, GA 47 mi59 min NE 6 G 9.9 73°F 84°F1016.4 hPa

Wind History for Charleston, SC
(wind in knots)    EDIT      (on/off)   Help
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
Last
24hr
N8
G15
N10
G14
N14
G18
N11
G14
N10
G16
N8
G12
N9
G12
N8
G12
NW8
G11
N9
G12
N9
G14
N10
G13
N9
G13
N9
G15
N15
G19
N11
G16
N8
G12
N11
G18
N8
G14
NW7
G10
N8
G12
N6
G9
N6
G10
N8
G11
1 day
ago
N3
N5
G8
NW4
G7
NW4
G8
NW4
G7
NW2
N4
G7
NW4
S3
NW3
G7
NW4
SE6
E8
E7
E10
G14
NE8
NE8
N8
G11
N7
G12
NW9
G12
N11
G15
N12
G16
N8
G13
N9
G13
2 days
ago
S3
SW4
SW4
SW3
SW4
SW4
G7
S3
E6
S8
S9
S9
S11
S9
SE9
S7
S8
S6
S4
S5
SW4
SW4
NW6
G9
NW4
G7
N4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beaufort County Airport, SC17 mi2.6 hrsNNE 107.00 miFair70°F60°F73%1016.6 hPa
Walterboro Lowcountry Regional Airport, SC22 mi1.9 hrsN 310.00 miFair64°F60°F88%1016.9 hPa

Link to 5 minute data for KARW

Wind History from ARW (wind in knots)
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
1
AM
2
AM
3
AM
4
AM
5
AM
Last 24hrN14N9N8
G15
N10N10N9N11NE10N9NE9NE9N14NE11NE9NE10
G15
NE14NE14
G19
N10NE11N8N7N8NE12NE10
1 day agoCalmE4NE5NE7NE6NE4NE7N10N8NE6NE5E5SE6E3E3E3NE4N8NE11N14NE12NE12N14NE15
2 days agoW3W3CalmW4CalmS3SW5S5SW5SE8SE7S7S5S4SE3CalmCalmCalmCalmNW5N6N3N5Calm

Tide / Current Tables for Airy Hall Plantation, Ashepoo River, South Carolina
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Airy Hall Plantation
Click for Map
Mon -- 12:49 AM EDT     1.19 feet Low Tide
Mon -- 02:28 AM EDT     Moonrise
Mon -- 06:37 AM EDT     3.88 feet High Tide
Mon -- 06:52 AM EDT     Sunrise
Mon -- 01:03 PM EDT     0.39 feet Low Tide
Mon -- 05:03 PM EDT     Moonset
Mon -- 07:10 PM EDT     4.74 feet High Tide
Mon -- 07:54 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.31.21.52.12.83.43.83.83.52.92.11.30.70.40.71.52.63.64.44.74.643.32.4

Tide / Current Tables for Fenwick Island, South Carolina
   EDIT      (on/off)   Help   One Week of Data
Fenwick Island
Click for Map
Mon -- 02:28 AM EDT     Moonrise
Mon -- 04:55 AM EDT     5.82 feet High Tide
Mon -- 06:52 AM EDT     Sunrise
Mon -- 11:29 AM EDT     0.42 feet Low Tide
Mon -- 05:03 PM EDT     Moonset
Mon -- 05:28 PM EDT     7.11 feet High Tide
Mon -- 07:53 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.52.43.64.75.65.85.54.63.52.31.20.50.51.53.14.86.3776.35.23.92.61.5

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Charleston, SC (5,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Charleston, SC
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.