Marine Weather and Tides
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 7:18AM||Sunset 7:26PM||Saturday September 23, 2017 8:47 AM EDT (12:47 UTC)||Moonrise 9:30AM||Moonset 8:47PM||Illumination 8%|
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7 Day Forecast for Marine Location Near Homeland Park, SCHourly EDIT Help
Area Discussion for - Greenville-Spartanburg, SC  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 kgsp 231019|
area forecast discussion
national weather service greenville-spartanburg sc
619 am edt Sat sep 23 2017
Drier and stronger high pressure will continue to build through the
weekend and persist through at least the middle of next week. In the
meantime, tropical cyclones jose and maria will remain off the east
Near term through tonight
615 am edt update... Patchy non dense ground fg is developing across
the SRN upstate and NE ga which will burn off aft 13z. The same
dissipation timing GOES for the low stcu and vsbys across the mtn
valleys. Localized temps were bumped up a little based on
obs... Mainly across the higher terrain where cloud cover has been
A rather straightforward fcst is in store over the next 24-36 hrs.
Good confidence continues with a persistent synoptic scale pattern.
The main synop difference outside of a persistence type fcst for
today will be the NRN movement of hurricane maria, which is progged
to well northeast of the bahamas by the end of the near term. The
nw rn influence zone of maria may enhance the already strong subs
over the area however. Meanwhile... Continued dry bl air will adv in
from the NE due to an interaction of a 590 dm high and the remnants
of jose. Thus... Will expect a lower chance of convec today than
yesterday with the best chances, although low-end, confined to the
far SW rn nc mtns and up and mtn spine within weak E ly mech lift.
Limited SBCAPE will preclude much of a stg svr threat and will
anticipate only a few general pulse tstms outside of isol sct -shra.
Max temps shud have no problem reaching a cat or so abv normal while
mins also continue a few degrees above normal over the SRN zones.
Drier llvl air working in from the NE will allow for better rad
cooling overnight... But the morning fg threat will be lower as tdd s
remain a little too high outside the mtn valleys.
Short term Sunday through Monday night
As of 325 am Saturday: stagnant dry unseasonably warm weather will
persist through the short term and into the medium range, as a
highly amplified upper ridge tightens its grip on the eastern conus.
The air mass is expected to become drier and more stable early in
the week, as surface ridge strengthens with the upper anticyclone
gradually spilling east of the northern central appalachians, and the
surface gradient tightens in response to tropical cyclone maria
moving north from the bahamas. Thus, even the isolated diurnal
convection that is expected over portions of the high terrain today
is expected to be a thing of the past by early next week. Temps will|
remain above climo, but moderated slightly from recent days by
northeast low level flow.
Long term Tuesday through Friday
As of 330 am Saturday: upper ridging will persist along the east
coast into the medium range, although model run-to-run consistency
is resulting in increasing confidence that a pattern change is on
the horizon, as a series of potent short wave troughs are depicted
breaking down the ridge late in the week. In the interim, the
seasonably dry and not-so-seasonably warm weather will persist into
at least mid-week, as large scale subsidence persists within the
axis of the upper ridge, but also on the west side of t.C. Maria.
A cold front associated with the introduction of large scale height
falls into the eastern CONUS will likely impact the area within the
late Thursday through early Friday time frame. However, it's looking
increasingly likely that this will be largely a dry front for the
forecast area, as the circulation around maria maintains a dry ne
low level flow. Slight chance pops will be maintained for mainly the
far western mountains during the aforementioned time frame, although
even that may be on the generous side. By the end of the week, temps
should be much closer to normal, if not a bit cooler than climo, as
continental high pressure builds into the southeast.
Aviation 10z Saturday through Wednesday
At kclt and elsewhere: high pressure centered north continues to
dominate the pattern making for generally weak NE ly to E ly winds
thru the bl during the TAF period all sites. Tdd S are running a
little low this morning so expect patchy ground fg outside the mtns
in calm winds. Kavl will see lifr conds breaking up btw 13z-14z. Not
much moisture to work with this afternoon... So expectVFR CU with
little or no good chance of -shra or tstms outside of the far WRN nc
mtns and NE ga. A return to flight restrictions overnight is
possible across the mtn valleys and adjacent fthills but with drier
air working in... Not as likely as the past couple mornings.
Outlook: precip chances will wane through the weekend and early next
week. With clear skies and calm conditions, fog and or low stratus
are likely to return in the mtn valleys each of the next few
10-16z 16-22z 22-04z 04-06z
kclt high 91% high 100% high 100% high 100%
kgsp high 83% high 100% high 100% high 100%
kavl med 70% high 100% high 100% high 100%
khky high 91% high 100% high 100% high 100%
kgmu high 83% high 100% high 100% high 100%
kand high 91% high 100% high 100% high 100%
the percentage reflects the number of guidance members agreeing
with the scheduled TAF issuance flight rule category. Complete hourly
experimental aviation forecast consistency tables and ensemble forecasts
are available at the following link:
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|CHDS1 - Strom Thurmond Dam, SC||62 mi||67 min||Calm G 1||69°F|
|LMFS1 - Lake Murray SC||82 mi||27 min||Calm G 1||73°F||1016.6 hPa|
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Anderson, Anderson County Airport, SC||3 mi||51 min||N 0||10.00 mi||Fair||69°F||66°F||90%||1017.1 hPa|
|Clemson, Clemson-Oconee County Airport, SC||17 mi||53 min||N 0||7.00 mi||Fair||69°F||69°F||100%||1017.4 hPa|
|Pickens County Airport, SC||24 mi||52 min||N 0||5.00 mi||Fog/Mist||62°F||62°F||100%||1018.3 hPa|
Wind History from AND (wind in knots)
|1 day ago||Calm||N||E||E||SE||NE|
|2 days ago||Calm||SW||W||SW||W||W||W||W||W||SW||NW||N||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm|
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Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Southeast EDIT
Wind Forecast for Greenville-Spartanburg, SC (8,2,3,4)(on/off)  Help
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