Marine Weather and Tides
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.
|Sunrise 6:48AM||Sunset 6:21PM||Wednesday March 3, 2021 6:01 AM EST (11:01 UTC)||Moonrise 11:31PM||Moonset 9:38AM||Illumination 77%|
7 Day Forecast for Marine Location Near Mooresville, NCHourly EDIT Help
Area Discussion for - Greenville-Spartanburg, SC  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS62 KGSP 030743 AFDGSP
Area Forecast Discussion National Weather Service Greenville-Spartanburg SC 243 AM EST Wed Mar 3 2021
SYNOPSIS. Low pressure will move from the Florida panhandle to the South Carolina coastal waters through daybreak. A brief period of moisture north of this system will brush the western Carolinas and northeast Georgia before moving east through mid morning. Dry high pressure will return from the west later today and linger until Friday before a moist Gulf Coast low pressure system possibly affects the southeast Friday night into Saturday. Canadian high pressure builds back into the area Sunday and will maintain dry conditions through early next week.
NEAR TERM /THROUGH TONIGHT/. As of 240 am EST: Water vapor imagery reveals a mid-level, closed, low pressure system over western Georgia early this morning, with near term model guidance taking the circulation off the SC coast by late morning. An associated surface wave crossing northern Florida will transition to the SC coastal water through daybreak. Radar and model indications are that the deeper moisture with this system will strike a glancing blow to mainly southern Piedmont portions of the forecast area early this morning before quickly pulling away to the coast through the later morning hours. Precipitation across much of our area will be greatly limited by the very dry sub-850 mb layer. The northward extent of the measurable precipitation should be bounded generally by the NC border, with only spotty light precip surviving into the colder and drier air across western NC. The main lingering chance for some overlap of light precipitation and cold temperatures will be across the far southern mountains, particularly from Franklin to Brevard and especially the nearby ridge tops. Cannot rule out a few tenths of an inch of snow and a very spotty light glaze from freezing rain through daybreak in that area. However, coverage should remain limited enough that no significant impacts are expected.
Otherwise, northwesterly drying flow will set up very quickly at 850 mb this morning, with downslope warming and drying increasing through the day as heights build from the west. Good insolation for the bulk of the day will yield maximum temperatures in the 60s east of the mountains, with plenty of 50s in the mountains.
Generally dry high pressure and N to NW flow should persist through tonight. However, some low-level moisture could produce upslope cloudiness along the western mountains slopes later tonight. The moisture will be very shallow and no precipitation is expected along the spine of the mountains. Near climo min temps are expected.
SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/. As of 200 AM Wednesday . A highly amplified and slowly changing upper pattern will persist thru the short range period. The main sensible weather feature continues to be an h5 low which will weaken as it moves southeast across the srn CONUS. With deeply dry and dense air in place across the area, the attendant sfc low looks to remain suppressed south and limited on how much moist adv will transit north as it mixes with a deep subs zone. Precip chances have been maintained in the low chance range Fri night mainly across the far sw/rn zones and only slight PoPs over the srn NC mtns where some measure of mech lift may allow for isol showers and brief non/accum snowfall over the higher terrain. Thursday will be fairly warm with downslope enhanced highs reaching a couple cats abv normal then back to normal levels Fri as llvl winds shift ne/ly in a weak CAA flow. Mins will be right arnd or a little above normal each night. There could be fire-wx concerns outside the mtns depending on how much vertical dry air mixing takes place as RH values likely drop into 25-30 percent range each afternoon.
LONG TERM /SATURDAY THROUGH TUESDAY/. As of 220 AM Wednesday . No sigfnt changes were made to the ext range fcst. The guidance continues to display good agreement with a large scale ulvl ridge crossing the ern CONUS with a stg area of subs becoming reinforced in Mon. This will allow for a 1032 mb sfc high to build across the area Sun and slowly cross east thru the period. No good chance of precip and highs will begin a little cooler than normal Sat while the front end of the high pushes in and weak llvl CAA continues. However, the atmos will modify warmer thru the period with highs reaching the low 60s outside the mtns by Mon and a little warmer on Tue. The continued dry air in place will also keep the potential for low afternoon RH values Sun into Tue leading to possible low-end fire-wx issues each day.
AVIATION /08Z WEDNESDAY THROUGH SUNDAY/. At KCLT and elsewhere: Precipitation from the southeast low pressure system will be greatest at and near KAND, with spottier activity from KGMU to KGSP to KCLT, and mainly dry conditions from KAVL to KHKY early this morning. Given the dry boundary layer in place, will keep restrictions out of the forecast and just feature low end VFR conditions at KAND during the peak of the passing rainfall. If any precip does manage to reach KAVL, a few flurries or light snow showers would be possible. The same is true at KHKY, but precip is less likely there. VFR cigs will lift and scatter quickly through the morning hours as the low pressure system moves east. Anticipate mainly N to NW flow at 10 kt or less, except with low end gusts at KAVL. Flow will toggle briefly WSW or SW this afternoon at the Upstate TAF sites as a weak lee trough develops. Light winds and clear skies will continue through tonight.
Outlook: Dry high pressure and VFR conditions will persist through Friday. Brief moisture could return with a Gulf Coast low pressure system Friday night into Saturday before dry high pressure returns again for the latter half of the weekend.
Confidence Table .
07-13Z 13-19Z 19-01Z 01-06Z KCLT High 100% High 100% High 100% High 100% KGSP High 100% High 100% High 100% High 100% KAVL High 100% High 100% High 100% High 100% 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 . SBK NEAR TERM . HG SHORT TERM . SBK LONG TERM . SBK AVIATION . HG
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Statesville Municipal Airport, NC||14 mi||66 min||N 0||10.00 mi||Partly Cloudy||37°F||29°F||72%||1017.6 hPa|
|Concord Regional Airport, NC||16 mi||66 min||N 3||10.00 mi||Mostly Cloudy||39°F||34°F||81%||1018.3 hPa|
|Lincolnton, Lincolnton-Lincoln County Regional Airport, NC||16 mi||66 min||N 0||10.00 mi||Mostly Cloudy||39°F||29°F||69%||1017.3 hPa|
|Rowan County Airport, NC||20 mi||66 min||N 3||10.00 mi||Mostly Cloudy||37°F||33°F||86%||1017.3 hPa|
Link to 5 minute data for KSVH
Wind History from SVH (wind in knots)
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