Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
|Sunrise 6:11AM||Sunset 8:43PM||Thursday July 2, 2020 6:07 PM EDT (22:07 UTC)||Moonrise 5:25PM||Moonset 2:53AM||Illumination 92%|
7 Day Forecast for Marine Location Near Charlotte, NCHourly EDIT Help
Area Discussion for - Greenville-Spartanburg, SC  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS62 KGSP 021859 AFDGSP
Area Forecast Discussion National Weather Service Greenville-Spartanburg SC 259 PM EDT Thu Jul 2 2020
SYNOPSIS. A stalled frontal boundary will remain south of the area to allow for drier air to filter in through Independence Day. Any activity that does develop will mainly stay confined to the higher elevations. Temperatures are expected to hover slightly above climo for the holiday weekend. Deeper moisture returns Sunday and into the first half of next week to help increase rain chances.
NEAR TERM /THROUGH FRIDAY/. As of 234 pm EDT: Still quiet across the area right now. Some enhanced cu over the higher terrain in wrn SC/ne GA/sw NC, but nothing on radar yet. A few showers also to our east. Fcst looks like it is in good shape, with isolated showers or maybe a thunderstorm over the higher terrain through late afternoon.
Not much change to earlier thinking with regard to the weather features over the next 24 hours. We'll remain in the light northerly flow between the old upper low off the East Coast and the upper ridge/anticyclone to the west, with sfc high pressure ridging in from the north. A complete lack of mid/upper forcing thru Friday means no support for deep convection other than thermodynamics. A capping inversion east of the mountains will strongly inhibit convection in that area, but we should have enough differential heating to allow for convection on the ridgetops during peak heating Friday afternoon. Temps will remain slightly above normal.
SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/. As of 215 PM EDT Thursday: With gradually deamplifying upper ridge over the central US and upper trough on either side, latest guidance continues to prog a nearly stationary weak front well south of the area for the weekend. Despite limited available low level moisture, the mid to upper levels look to remain fairly dry. This combined with limited instability, have kept the potential for isolated showers and thunderstorms confined to the mountains, though not to say a rouge shower or thunderstorm couldn't develop over the Upstate or NW Piedmont. Primary threat with any thunderstorm will be gusty winds. Overall, PoPs and QPF remain fairly low for Saturday. Max temps for Independence Day will be a few degrees above normal in the lower 90s, cooler across the mountains. Min temps will bottom out around normal as well.
On Sunday, upper ridge will continue to deamplify as it slowly shifts eastward while upper troughing remains over the eastern seaboard. Meanwhile at the sfc, low pressure develops along the boundary, stretched across the Gulf states, as it slowly lifts northward. With increasing available moisture as SW flow returns and limited instability, PoPs increase for Sunday afternoon with isolated to scattered showers and thunderstorms possible. Again, higher PoPs remain confined to the mountains with overall low QPF. Max temps will climb to normal.
LONG TERM /SUNDAY NIGHT THROUGH WEDNESDAY/. As of 250 PM EDT Thursday: Despite guidance being not entirely in agreement, overall anticipate an unsettled weather pattern for the extended forecast period as the aforementioned warm front continues to lift northward and sfc low pressure nears the area, along with increasing moisture and available instability. Though will note, the placement of this sfc low remains uncertain at this time given model discrepancy - further inland vs. coastal. Weak upper ridge will continue to shift eastward and eventually move offshore by the mid part of the week, only to be replaced by a very broad ridge/trough pattern. Thus, diurnally driven showers and thunderstorms will be possible each day. QPF will remain low for the early portions of the week, with increasing moisture and higher PWATs into the middle part of the week. Max temps will remain around normal if not a few degrees below with min temps around normal.
AVIATION /19Z THURSDAY THROUGH TUESDAY/. At KCLT and elsewhere: Shower activity should be confined to the higher terrain this afternoon, otherwise just few/sct high based cu. Wind will be N to NE through sunset. Light/variable wind and sct cirrus overnight as high pressure ridges down from the north. At issue will be fog in the mtn valleys. Latest guidance is that we will dry out enough that it will not develop. More of the same for Friday, with wind coming back light from the north by late morning and a few cu developing by midday.
Outlook: A more typical diurnal pattern of mainly mountain shower and thunderstorm chances will be in place through the weekend and into early next week. There will be some potential for low clouds and fog around daybreak each morning, especially in the mtn valleys and also in areas under heavy downpours each afternoon. Otherwise, expect VFR conditions.
Confidence Table .
19-01Z 01-07Z 07-13Z 13-18Z KCLT High 100% High 100% High 100% High 100% KGSP High 100% High 100% High 100% High 100% KAVL High 100% High 100% High 99% High 97% KHKY High 100% High 100% High 100% High 100% KGMU High 100% High 100% High 100% High 100% KAND High 100% 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 are available at the following link:
GSP WATCHES/WARNINGS/ADVISORIES. GA . None. NC . None. SC . None.
SYNOPSIS . CAC NEAR TERM . PM SHORT TERM . 12 LONG TERM . 12 AVIATION . PM
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|
|WATS1 - Lake Wateree, SC||61 mi||38 min||N 2.9 G 7||93°F|
|LMFS1 - Lake Murray SC||80 mi||48 min||NNW 1.9 G 5.1||91°F|
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Charlotte, Charlotte / Douglas International Airport, NC||6 mi||76 min||NNE 9||10.00 mi||A Few Clouds||90°F||64°F||44%||1012.1 hPa|
|Concord Regional Airport, NC||14 mi||73 min||NE 6||10.00 mi||Partly Cloudy||90°F||64°F||43%||1013.9 hPa|
|Gastonia Municipal Airport, NC||17 mi||74 min||NNE 7||10.00 mi||Fair||91°F||64°F||42%||1012.2 hPa|
|Monroe, Monroe Airport, NC||17 mi||75 min||NE 11||10.00 mi||A Few Clouds||90°F||69°F||50%||1012.1 hPa|
|Rock Hill, Rock Hill - York County Airport, SC||20 mi||74 min||Var 5||10.00 mi||Mostly Cloudy||90°F||70°F||52%||1011.5 hPa|
Link to 5 minute data for KCLT
Wind History from CLT (wind in knots)
|1 day ago||N||Calm||Calm||N||NW||Calm||Calm||S||NW||Calm||NW||W||NW||N||N||Calm||Calm||E||SW||NE||NW||NW|
|2 days ago||NW|
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GEOS Local Image of Mid-Atlantic 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 Greenville-Spartanburg, SC (18,4,5,8)(on/off)  Help
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