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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen
|Sunrise 7:15AM||Sunset 5:12PM||Friday December 6, 2019 10:06 AM EST (15:06 UTC)||Moonrise 2:13PM||Moonset 1:44AM||Illumination 72%|
7 Day Forecast for Marine Location Near Hemby Bridge, NCHourly EDIT Help
Area Discussion for - Greenville-Spartanburg, SC  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS62 KGSP 061141 AFDGSP
Area Forecast Discussion National Weather Service Greenville-Spartanburg SC 641 AM EST Fri Dec 6 2019
SYNOPSIS. A low pressure system will move quickly across the Southeast today. Dry high pressure returns for the weekend, but an unsettled weather pattern will develop by early Monday, with rainy conditions expected through Tuesday ahead of an approaching cold front.
NEAR TERM /THROUGH TONIGHT/. As of 630 am: Low amplitude upper troughing with weakly confluent flow will persist across the East through the period. A short wave trough moving E/SE from the Arklatx early this morning will dampen as it encounters this confluent flow, also resulting in spinning down of an associated small cyclone. While plenty of moisture, primarily of the mid and upper level variety will continue streaming over the forecast area through the day, diminishing forcing along with minimal low level moisture is expected to yield spotty -RA or even just sprinkles across the area today, and pops are generally limited to the 20-30 range. Small pops and cloud cover begin to diminish this evening, as remnant wave moves off the Southeast coast. Despite thickness values that are progged to be very similar to yesterday, extensive mid/high cloud cover is expected to result in maxes roughly 5 degrees cooler than Thursday's readings, or right around normal. Min temps tonight are forecast to be slightly warmer than climo.
SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/. As of 245 AM Fri: CAA will continue thru the weekend as cool high pressure ridges down the Eastern Seaboard. With only limited moisture trapped beneath a subsidence inversion, the main driver for cloud cover will be easterly upslope flow on Saturday. The pattern will remain progressive, and heights rise Saturday night into Sunday. This will allow return flow over the cool high, though clouds remain mostly of an upslope nature. Min temps thus still trend down Saturday night, leading to Sunday maxes a couple categories below normal. The sfc high will have migrated offshore by the time precip chances enter the fcst Sunday night, seemingly minimizing the potential for in-situ CAD. Temps are depicted as rising overnight even as PoPs ramp up, and the likelihood of any freezing rain looks very small at this point.
LONG TERM /MONDAY THROUGH THURSDAY/. As of 305 AM Fri: Cold offshore high pressure will further lose influence over the CWFA on Monday as a warm front lifts past the area. This occurs as a trough swings into the Mississippi Valley and sfc low develops and tracks across the Great Lakes. Precip chances diminish somewhat on Monday as the warm front exits, bringing us well above normal temps Monday and Tuesday while we are in the warm sector. PoPs gradually build from the west again Monday night into early Tuesday ahead of the approaching cold front. SBCAPE is depicted as being nearly zero, but the seasonably strong 0-3km shear vectors warrant close monitoring of the instability progs as the event nears. Temp and thickness trends following the cold fropa suggest a quick changeover from rain to snow is possible Tuesday night, but current liquid QPF and modeled snow accums indicates totals may not even warrant a Winter Weather Advisory.
Another dry continental high will spread across the Southeast in the wake of the midweek front. Max temps will fall back below normal Wed and Thu within this airmass. At the end of next week, following the progression of this high to the East Coast, the occasional model run hints that shortwave(s) moving near the Gulf Coast could bring a wet frontal system thru the area. Some ensemble members now depict this occurring at the very end of Day 7 (next Thu night), though the 00z suite of deterministic guidance is dry at that time (and thus, thru the end of the fcst period). With the wide variations from run to run and between models giving little confidence as to what sorts of wintry impacts might result, PoPs are not yet warranted in the fcst.
AVIATION /12Z FRIDAY THROUGH TUESDAY/. At KCLT and elsewhere: VFR conditions are forecast through the period, with mid and high level clouds expected to persist through much of the day in association with an approaching upper level disturbance. Chances for rain will be highest over the mtns, but only a Prob30 is warranted late this afternoon/evening at KAVL. Sprinkles may fall at the other terminals, but certainly nothing that would contribute to flt restrictions. Winds will become light SW by late morning, returning to generally light/vrbl this evening, before becoming N or NE at around 5 kts by the end of the period. Clearing skies, light winds, and somewhat elevated dewpoints could result in some patchy fog developing early Sunday, but confidence is low at this time.
Outlook: Flight restrictions are likely to return sometime late Sunday into early Monday with rain at times until a cold front pushes through the area Tuesday.
Confidence Table .
11-17Z 17-23Z 23-05Z 05-06Z 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 and ensemble forecasts are available at the following link:
GSP WATCHES/WARNINGS/ADVISORIES. GA . None. NC . None. SC . None.
SYNOPSIS . 08 NEAR TERM . JDL SHORT TERM . 08 LONG TERM . 08 AVIATION . JDL
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||54 mi||36 min||ESE 1.9 G 2.9||46°F|
|LMFS1 - Lake Murray SC||77 mi||46 min||SSE 2.9 G 5.1||53°F|
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Monroe, Monroe Airport, NC||6 mi||73 min||SSW 5||10.00 mi||Fair||49°F||30°F||48%||1024.7 hPa|
|Charlotte, Charlotte / Douglas International Airport, NC||18 mi||74 min||S 5||10.00 mi||Mostly Cloudy||48°F||32°F||54%||1023 hPa|
|Concord Regional Airport, NC||20 mi||71 min||N 0||10.00 mi||Mostly Cloudy||45°F||39°F||81%||1023.7 hPa|
Link to 5 minute data for KEQY
Wind History from EQY (wind in knots)
|1 day ago||SW||SW||W||W||W|
|2 days ago||NW||SW||W||W||SW|
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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 (10,2,3,4)(on/off)  Help
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