Marine Weather and Tides
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.
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|Sunrise 7:23AM||Sunset 5:13PM||Sunday December 15, 2019 10:54 AM EST (15:54 UTC)||Moonrise 8:52PM||Moonset 10:29AM||Illumination 84%|
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 151521 AFDGSP
Area Forecast Discussion National Weather Service Greenville-Spartanburg SC 1021 AM EST Sun Dec 15 2019
SYNOPSIS. Dry high pressure will remain over the region, before a moist cold front crosses the area from the west late Monday into Tuesday. Cooler Canadian high pressure will build in Wednesday and persist through the end of the work week.
NEAR TERM /THROUGH TONIGHT/. As of 1000 AM: Still some lingering stratus banked up against portions of the NC mountains within westerly flow, but are slowly dissipating. Otherwise, just a few altocu streaming by, so expect mostly sunny skies today. Modest high pressure building over the area today will result in highs about 5 degrees above normal, with weakening winds in the mountains, and light wind elsewhere.
Heights rise aloft tonight as a weak ridge builds off the Atlantic coast and a trough develops over the MS River valley. Surface high pressure moves offshore overnight as a warm front develops over the TN River valley. An increasingly moist, southwesterly low level flow develops this evening bringing increasing low level clouds across the area. The moisture is shallow and the isentropic lift weak; however, there may be enough mechanical, upslope lift for some patchy rain to develop across the southwestern mountains and along the Blue Ridge escarpment of the NC/SC/GA borders. While southwesterly winds will increase across the area, they will remain generally light for all but the highest ridges west of the French Broad valley, as usual for a southerly, warm advection pattern. Gusts should remain below advisory levels for all but possibly the highest ridges of the Smokies. Lows will be around 10 degrees above normal.
SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/. As of 145 AM EST Sunday: An active weather pattern is still in the works over the short term period. Good agreement is had in the latest model runs with a broad h5 trof deepening across the Midwest . while a wavy frontal system sets up over the TN/OH valleys by 12z Mon. Due to the positive alignment of the upper trof . the stronger deep forcing will remain west and north of the FA as the sfc front crosses the area thru Tue evening. Cross sections show elevated omega ahead of the fropa . which is a notable weakening trend from previous guidance. There looks to be a low-end elevated CAPE potential on Tue just ahead of the llvl convg zone . while deep shear remains high and hodos become right-turning. So . organized QLCS lines are not out of the question by mid-morning into the afternoon mainly along and south of the I85 corridor.
The SW NC mtns will see the brunt of the rainfall where localized areas could receive up to 2 inches Mon night . which may lead to minor hydro issues along small streams and low-lying areas. Winds still look to be moderately strong over the mtns abv 3500 ft as a 50 kt h85 jet develops aft midnight. A wind adv may be needed for these areas as widespread damaging winds are not expected to warrant a high wind warning attm. This windy scenario will continue to be monitored over the next few shifts Behind the front. upslope NW flow -snsh will develop across the NC mtns . however with shallow and waning moisture . accums will be low end-end and likely below adv level.
With continued sw/ly flow ahead of the front and w/ly downslope winds post frontal . max temps will reach the m60s each afternoon over the non/mtns. The mtn valleys will be warm Mon with readings reaching the l60s Mon and still abv normal yet cooler in the m50s on Tue. Warm sector cloudiness and llvl mixing will help hold mins abt 20 degrees abv normal Mon night . then a 20 degree drop to normal levels Tue night as a cP airmass mixes into the FA.
LONG TERM /WEDNESDAY THROUGH SATURDAY/. As of 230 AM EST Sunday: Upper level heights begin to rise as a ridge axis develops west of the fcst area Wed. A stg subs zone will encompass the region beginning Wed afternoon . which will allow a 1028 mb sfc high to transit the se/rn states into Fri. This setup will return clearing skies and cooler max/min temps . altho near or just below normal levels each day By Fri night. a developing h5 trof will dig across the ern CONUS which will be a weather maker for the FA into the weekend. Much uncertainty exists during this time frame as the GFS and ECMWF models are at odds with the details of the trof config. The GFS is developing a closed low within the trof and diving it across GA/SC and off the Atl coast thru Sat . while the ECMWF keeps a faster non/closed trof axis crossing the area with limited coastal sfc low development. The GFS scenario would bring a decent amt of wintry precip to the FA as colder air would have more time to be advected south as the low deepens off the coast. The latest ECMWF on the other hand keeps the better moisture axis over the ern zones with a limited freezing sfc-layer potential. Its interesting that the 00z ECMWF has trended more inline with the colder and moister GFS soln . however this system will be monitored over the upcoming week and much can change with the sensible weather fcst So for now. have a low-end chance sn or -ra/sn mix over the northern zones Fri night with limited/nil snow accums.
AVIATION /16Z SUNDAY THROUGH THURSDAY/. At KCLT and Elsewhere: VFR at all TAF sites into the evening. Low VFR clouds across the mountains, and some valley fog, will dissipate this morning leaving increasing and thickening cirrus across the area through the afternoon. Generally SW wind continue through the day, WNW at KAVL. Mid and low VFR clouds will move in from the west and/or develop over the area this evening as a moist south to SW low level flow develops. Winds turn S to SW, even at KAVL, overnight as well. With relatively strong winds developing at ridge top level, LLWS is likely to develop at KAVL. MVFR cigs and vsby develops at KHKY, KAVL, and KAND by morning. Low VFR at KGSP/KGMU. Low VFR holds off until after daybreak at KCLT.
Outlook: Moisture increases across the area ahead of the next cold front, which will cross the region Monday night into Tuesday. The front will bring a round of rain showers, with cig/vis restrictions likely. Drier air and stronger high pressure will set up by midweek.
Confidence Table .
15-21Z 21-03Z 03-09Z 09-12Z KCLT High 100% High 100% High 100% High 98% KGSP High 100% High 100% High 85% Med 78% KAVL High 100% High 100% High 93% High 86% KHKY High 100% High 100% High 95% Med 64% KGMU High 100% High 100% High 86% Med 77% KAND High 100% High 100% High 86% High 81%
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:
GSP WATCHES/WARNINGS/ADVISORIES. GA . None. NC . None. SC . None.
SYNOPSIS . SBK NEAR TERM . ARK/RWH SHORT TERM . SBK LONG TERM . SBK AVIATION . RWH
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||84 min||SE 1.9 G 2.9||41°F|
|LMFS1 - Lake Murray SC||80 mi||34 min||SW 7 G 11||50°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||62 min||W 4||10.00 mi||A Few Clouds||46°F||37°F||71%||1019.4 hPa|
|Concord Regional Airport, NC||14 mi||64 min||W 4||10.00 mi||Fair||48°F||39°F||71%||1020 hPa|
|Gastonia Municipal Airport, NC||17 mi||60 min||N 0||10.00 mi||Fair||48°F||37°F||68%||1019.4 hPa|
|Monroe, Monroe Airport, NC||17 mi||61 min||WSW 5||10.00 mi||Fair||45°F||39°F||80%||1020.6 hPa|
|Rock Hill, Rock Hill - York County Airport, SC||20 mi||60 min||W 5||10.00 mi||Fair||47°F||37°F||71%||1020 hPa|
Link to 5 minute data for KCLT
Wind History from CLT (wind in knots)
|1 day ago||N||NE||N||N||N||N||N||N||NE||N||N||NW||N||N||NE||W||Calm||E||Calm||S||S||SW||SW|
|2 days ago||NE||NE|
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Wind Forecast for Greenville-Spartanburg, SC (10,2,3,4)(on/off)  Help
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