Wednesday, June19, 2019 L-36.com


Marine Weather and Tides
Ridgeland, SC

Version 3.4
NOTICE
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 6:15AMSunset 8:33PM Wednesday June 19, 2019 1:21 PM EDT (17:21 UTC) Moonrise 9:41PMMoonset 7:13AM Illumination 95% Phase: Waning Gibbous; Moon at 17 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- 1230 Pm Edt Wed Jun 19 2019
.small craft advisory in effect through late tonight...
This afternoon..SW winds 10 to 15 kt with gusts to 20 kt, increasing to 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Scattered showers and tstms.
Tonight..SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 5 ft. A slight chance of showers and tstms.
Thu..SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. A slight chance of showers and tstms.
Thu night..SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. A chance of showers and tstms.
Fri..W winds 15 to 20 kt, becoming sw 10 to 15 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. A chance of showers and tstms, mainly in the morning.
Fri night..SW winds 10 to 15 kt. Seas 2 to 3 ft.
Sat..W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Sat night..SW winds 10 kt. Seas 2 ft. A slight chance of showers and tstms.
Sun..W winds 5 to 10 kt. Seas 2 ft. A slight chance of showers and tstms.
Sun night..SW winds 10 kt. Seas 2 ft. A slight chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 1230 Pm Edt Wed Jun 19 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A trough of low pressure will generally prevail into early next week.


7 Day Forecast for Marine Location Near Ridgeland, SC
   Hourly   EDIT   Help
location: 32.41, -80.89     debug


Area Discussion for - Charleston, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kchs 191705
afdchs
area forecast discussion
national weather service charleston sc
105 pm edt Wed jun 19 2019

Synopsis
A trough of low pressure will generally prevail into early next
week.

Near term through tonight
Today: no major changes with the latest update.

Latest regional radar imagery indicates showers increasing in
coverage mainly south and west of charleston. Expect showers to
increase in coverage with some thunderstorms to develop as well
through the rest of the afternoon as upstream convection
associated with upper- level positive vorticity divergence
across the fl panhandle shifts to the east- northeast.

Instability and deep layer shear are not expected to be too
favorable for much severe weather but can't rule out a few
isolated severe storms later this afternoon, especially near
mesoscale boundary collisions, as increasing mid- level dry air
raises the risk for damaging wind gusts. Highs should mainly be
near 90 inland with lower 80s at the beaches.

Tonight: convection will quickly diminish this evening, likely
ending last across the far interior. It will be a warm and humid
night with modest low-level jetting likely to keep the boundary
layer somewhat mixed through the night. Lows will range from
the mid 70s across the interior to around 80 at the beaches and
in downtown charleston.

Short term Thursday through Saturday
Thursday: a trough of low pressure at the surface and aloft
will combine with a typically hot, humid and unstable
environment to support at least scattered thunderstorms. Of
particular interest, an upstream shortwave trough aloft and 0-6
km bulk shear increasing to 30-35 knots suggests that multicell
thunderstorms which develop inland upstream could hold together
to push into our area with a threat for locally damaging wind
gusts late in the day or during the evening. As a weakening cold
front pushes into the region Thursday night, overnight pops
range from slight chance north to chance south. Outside any
thunderstorms, daytime high temps in the lower middle 90s away
from the beaches will give way to overnight low temps in the
lower middle 70s inland and 75-80f close to the coast.

Friday: as the shortwave trough aloft advances into the atlantic, an
upper ridge will expand into the region. As a result, the surface
cold front will stall and continue to weaken over or near the
region. Despite the presence of this front, temperatures will
actually average a couple of degrees higher than those of Thursday,
with middle 90s common and a few locations across the interior south
pushing into the upper 90s. Heat index values could make a run at
105f across far southern counties, and a heat advisory could be
required for some SE ga counties. Will continue address heat within
the hazardous weather outlook. Otherwise, the main impact of the
weakening cold front will be to suppress best instability into
southern western counties. Thus, pops across a large swath of sc
counties remains below 15 percent with no mention of rain Thursday.

Farther south, pops are graduated from slight chance near the
savannah river to 30-40 percent across southern counties. While 0-6
km bulk shear weakens, instability across southern inland counties
could become quite strong, with MLCAPE values as high as 2500-3500
j kg, so isolated pulse severe thunderstorms will be possible.

Friday night: guidance suggests that this will be our best chance
for a rain-free period, so low temps in the 70s will be accompanied
by pops below 15 percent with no mention of rain.

Saturday: a subtle south southwest to north northeast moisture
gradient will persist, and diurnal pops are graduated from 20-30
percent north to 40-50 percent south west. Another round of mlcape
values as high as 2500-3000 j kg could support an isolated damaging
wet microburst threat across southern western area. Meanwhile, high
temps in the middle to upper 90s and dewpoints mainly in the lower
to middle 70s will combine to produce heat index values in the lower
100s at many locations, and some inland SE ga locations could
require a heat advisory as heat index values top out close to
105f.

Long term Saturday night through Tuesday
Temperatures will remain above normal through the middle of next
week, and a surface trough of low pressure will persist over the
area. Aloft through early week, the region will remain between an
upper ridge centered to the southwest and a trough to the northeast.

A stronger ridge, more likely through early week, could limit
coverage of diurnal thunderstorms and could prompt heat advisories
for some areas. If the ridge is weaker, coverage of diurnal
convection could increase, and any organized upstream convection
could spill into the area from the northwest. After initial
disagreement through early week, guidance generally agrees that the
upper ridge will weaken retreat west through midweek,
supporting normal to above normal daily pops.

Aviation 18z Wednesday through Monday
Vfr for much of the 18z TAF period. Main concern is the risk
for restrictions from showers tstms later this afternoon,
starting earliest at ksav and then shortly thereafter at kchs.

Very low risk for MVFR ceilings, mainly late tonight at ksav,
and additional shower storm impacts toward the end of the taf
period, but confidence remains too low to mention at this time.

Extended aviation outlook: outside any showers thunderstorms, which
will produce brief flight restrictions and gusty winds, and early
morning stratus and or fog,VFR conditions will prevail most of this
period.

Marine
Today: west to southwest winds this morning will become more
uniformly southwest through the day. Speeds are forecast to
rise by mid-afternoon as low-level wind fields increase. Expect
frequent gusts to 25 kt to occur in charleston harbor as well as
the sc nearshore and ga offshore waters this afternoon where
small craft advisories have been hoisted. Seas will average 2-4
feet most of the day, highest east, with waves building up to 2
feet in the charleston harbor.

Tonight: modest southwest nocturnal jetting is expected to
prevail across the waters overnight. The highest winds (20 kt
with frequent gusts to 25 kt) look to remain confined to the
sc nearshore and ga offshore waters where small craft
advisories will be maintained most of the night. Winds should
fall below advisory thresholds in the charleston harbor around
sunset. Otherwise, winds will remain 15-20 kt with seas 3-5 ft.

Thursday through Monday: small craft advisory conditions could
re-develop in some areas Thursday into Thursday night,
particularly amz350, as gusty southwest winds are accompanied by
seas as high as 5-6 feet. Then, west-southwest winds should
remain below small craft advisory levels, and seas should
subside into the 1-3 ft range, late week into early next week.

Equipment
The charleston, sc radar (kclx) will remain down for maintenance
today through early afternoon.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... Small craft advisory until 8 pm edt this evening for amz330.

Small craft advisory until 4 am edt Thursday for amz350-352-
374.

Near term... Rjb
short term...

long term...

aviation... Rjb
marine... Rjb
equipment...



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 25 mi96 min S 1.9 86°F 1013 hPa74°F
FPKG1 - 8670870 - Fort Pulaski, GA 26 mi57 min S 6 G 8.9 85°F 82°F1013.2 hPa
41033 27 mi73 min SSW 9.7 G 14 81°F 82°F1013.2 hPa
FBIS1 - Folly Island, SC 56 mi81 min SSW 13 G 15 82°F 1013.6 hPa (-0.5)74°F

Wind History for Fort Pulaski, GA
(wind in knots)    EDIT      (on/off)   Help
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
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
Last
24hr
E8
S6
SE4
G8
S5
G9
S7
G10
S7
G11
S5
G9
SW12
G17
SW10
G13
SW8
G11
SW4
W5
W3
W4
G7
W4
W3
SW6
W4
W5
W3
W7
G11
SW6
SW6
G9
S9
G15
1 day
ago
SE8
G14
SE9
G14
S8
G12
SE6
G11
S9
G13
SE9
G14
S10
G15
S6
G13
S6
G10
S4
G9
S5
G9
S5
G9
S4
S3
G6
SE4
S6
SE1
SE3
S4
SW5
G10
W4
NW4
E4
E8
2 days
ago
S7
G10
S7
G11
S8
G12
S11
G16
S10
G14
S8
G13
S5
G10
S6
G10
S5
G9
S4
S3
S3
S2
G5
W2
SW2
SW2
SW1
SW3
W4
W3
G6
S7
G10
S6
G10
S5
G8
S6
G11

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beaufort County Airport, SC14 mi26 minSSW 87.00 miPartly Cloudy86°F73°F66%1012.5 hPa
Hilton Head Island, Hilton Head Airport, SC17 mi31 minno data10.00 miMostly Cloudy86°F75°F70%1013.2 hPa

Wind History from NBC (wind in knots)
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
5
AM
6
AM
7
AM
Last 24hrCalmSW6S5----------------------------------------SW4
1 day agoCalmCalmSW6S6CalmCalmS33S7S9
G15
SE9
G16
S7S9S4S6S4S3S4CalmCalmCalmCalmCalmCalm
2 days ago------------------------------------------------

Tide / Current Tables for Broughton Point, Hazzard Creek, Broad River, South Carolina
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Broughton Point
Click for Map
Wed -- 05:57 AM EDT     -0.02 feet Low Tide
Wed -- 06:16 AM EDT     Sunrise
Wed -- 08:13 AM EDT     Moonset
Wed -- 11:43 AM EDT     7.10 feet High Tide
Wed -- 05:52 PM EDT     0.18 feet Low Tide
Wed -- 08:33 PM EDT     Sunset
Wed -- 10:40 PM EDT     Moonrise
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
8.47.66.14.22.20.6-00.62.24.15.86.97.16.45.23.61.90.60.20.92.54.56.37.6

Tide / Current Tables for Hwy. 170 bridge, Broad River, South Carolina
   EDIT      (on/off)   Help   One Week of Data
Hwy. 170 bridge
Click for Map
Wed -- 05:13 AM EDT     -0.02 feet Low Tide
Wed -- 06:16 AM EDT     Sunrise
Wed -- 08:13 AM EDT     Moonset
Wed -- 11:00 AM EDT     6.84 feet High Tide
Wed -- 05:08 PM EDT     0.21 feet Low Tide
Wed -- 08:32 PM EDT     Sunset
Wed -- 10:39 PM EDT     Moonrise
Wed -- 11:27 PM EDT     7.92 feet High Tide
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
7.66.34.62.60.900.31.63.45.26.46.86.45.43.92.30.90.20.623.85.77.17.8

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 (13,3,4,5)
      (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.