Thursday, August13, 2020
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Marine Weather and Tides
Mooresville, NC

Version 3.4
NOTICE
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 6:40AMSunset 8:15PM Thursday August 13, 2020 12:26 PM EDT (16:26 UTC) Moonrise 12:21AMMoonset 2:55PM Illumination 27% Phase: Waning Crescent; Moon at 24 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
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7 Day Forecast for Marine Location Near Mooresville, NC
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location: 35.57, -80.89     debug


Area Discussion for - Greenville-Spartanburg, SC
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FXUS62 KGSP 131435 AFDGSP

Area Forecast Discussion National Weather Service Greenville-Spartanburg SC 1035 AM EDT Thu Aug 13 2020

SYNOPSIS. Scattered to numerous diurnally driven showers and thunderstorms are expected over the next few days. High temperatures will be slightly below normal through the weekend due to ample moisture and increased cloud cover.

NEAR TERM /THROUGH TONIGHT/. As of 10:30am EDT Thursday: Little change to the forecast for this update. Adjusted POPs to better match current mostly clear radar. However, another diurnal round of showers and thunderstorms is expected this afternoon.

The relatively weak closed upper low currently centered over southern Illinois will open up and drift eastward towards the Appalachians today and tonight. With most of the favorable ingredients still in place from yesterday, i.e., weak low-level convergence, weak upper divergence, moist profiles, light ELY to SELY upslope flow, we can expect another day of good convective coverage with some activity lingering thru late tonight and into the overnight. Fcst profiles are showing slightly better lapse rates, however lingering debris clouds could inhibit surface heating later this morning.

Thus, instability amounts will likely be similar to the past few days with a continued threat of isolated severe thunderstorms. The bigger threat will once again be localized flash flooding from slowly moving cells. Otherwise, high temps will be near normal for mid-August.

SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/. As of 315 AM EDT Thursday: With upper ridge over the SW CONUS and Bermuda High anchored offshore, upper trough axis extending from the OH Valley into the TN Valley will slowly continue to shift eastward allowing for an unsettled weather pattern to persist through the fcst period with above climo PoPs. PWATs will average around 2 inches as persistent SW flow around Bermuda High supplies ample moisture into the area. Though max temps each day will fall short of normal given cloud cover, daytime heating along with upper trough and sfc trough will help set the stage for shower and thunderstorm activity. Anticipate mainly diurnal driven convection, but given position of upper support, lingering activity could carry well over into the overnight hours. A few storms throughout the period could become strong to severe with gusty winds possible, but do expect the primary threat through the fcst period to be heavy downpours and flooding, especially given recent rainfall over the past few days and thus, already saturated soils in some locations. Both days are in a marginal risk for the WPC Excessive Rainfall Outlook. Min temps will remain above normal.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. As of 345 AM EDT Thursday: Upper trough which supported the unsettled weather pattern in the short term forecast period will continue to lift northeastward out of the OH Valley and into the Northeast at the beginning of the forecast period as another upper wave moves in just behind it into the Great Lakes region. With upper ridge building over the western CONUS, NW flow will cut off moisture infiltration from the Gulf per latest GFS, allowing for brief drying trend as a sfc cool front approaches from the WNW for the early part of the week. However, the ECMWF isn't as bullish with the amount of dry air that the GFS is suggesting. Thus, with this fcst package, have kept with a general trend of a decrease in PoPs for Sunday into Monday, gradually ramping up the potential for showers and thunderstorms towards midweek as SW flow returns and upper troughing begins to dig over the eastern CONUS. With all this to say, could not entirely rule out isolated showers and thunderstorms Sunday and Monday. Temps will fall just short of normal through the fcst period.

AVIATION /15Z THURSDAY THROUGH MONDAY/. At KCLT and Elsewhere: Below normal confidence continues for 12z TAFs. Still expect that the lingering remnant debris clouds from earlier will continue to gradually clear out and support IFR cigs/vsbys for the mtn valleys (including KAVL) and some foothill locations (including KHKY) thru 13 or 14Z. Light ELY upslope flow should continue to support MVFR to locally IFR cig development east of the mountains, most notably for the NC terminals. Otherwise, sct to widespread diurnal convection is expected again today with possibly an earlier start (around 16Z) along and west of I-26. Winds will be light thru the period and generally favor a NELY to SELY direction before going light to calm again early tomorrow morning.

Outlook: Above normal coverage of diurnal convection is expected thru the upcoming weekend and into early next week. Fog and low stratus restrictions will be possible each morning, especially over the usual mountain valleys.

Confidence Table .

14-20Z 20-02Z 02-08Z 08-12Z KCLT High 96% High 100% High 100% Low 50% KGSP High 100% High 100% High 98% Low 31% KAVL High 96% High 100% Med 63% Med 67% KHKY High 84% High 100% High 97% Low 43% KGMU High 100% High 100% High 97% Low 37% KAND High 82% High 100% High 100% Low 55%

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:

www.weather.gov/gsp/aviation

GSP WATCHES/WARNINGS/ADVISORIES. GA . None. NC . None. SC . None.

SYNOPSIS . JPT NEAR TERM . JPT/WJM SHORT TERM . 12 LONG TERM . 12 AVIATION . JPT


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WATS1 - Lake Wateree, SC 86 mi57 min N 1 G 1.9 85°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Statesville Municipal Airport, NC14 mi32 minE 510.00 miOvercast83°F73°F74%1017.9 hPa
Concord Regional Airport, NC16 mi37 minE 56.00 miFog/Mist81°F73°F79%1018.6 hPa
Lincolnton, Lincolnton-Lincoln County Regional Airport, NC16 mi32 minNE 310.00 miMostly Cloudy82°F72°F73%1017.9 hPa
Rowan County Airport, NC20 mi32 minESE 410.00 miOvercast79°F72°F82%1017.9 hPa

Link to 5 minute data for KSVH

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Last 24hrE6SW5CalmS3N6N6N4CalmCalmCalmCalmCalmNE4N4CalmN4CalmN3CalmCalmN5NE8NE6E6
1 day agoCalmW3W4CalmCalmCalmSW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3CalmNE4
2 days agoCalmNE5NW7NE5CalmE3SE4CalmCalmCalmCalmCalmCalmSE3CalmCalmCalmCalmCalmS3SW4CalmSE3Calm

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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GEOS 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 Greenville-Spartanburg, SC (12,3,4,5)
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Ground Weather Radar Station Greer, SC
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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 numerous 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.