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 7:23AM||Sunset 5:20PM||Saturday December 7, 2019 1:28 AM EST (06:28 UTC)||Moonrise 2:52PM||Moonset 2:50AM||Illumination 78%|
7 Day Forecast for Marine Location Near Dillard, GAHourly EDIT Help
Area Discussion for - Greenville-Spartanburg, SC  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS62 KGSP 070238 AFDGSP
Area Forecast Discussion National Weather Service Greenville-Spartanburg SC 938 PM EST Fri Dec 6 2019
SYNOPSIS. 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. Dry high pressure expected for later next week.
NEAR TERM /THROUGH SATURDAY/. As of 940 pm: Quiet weather continues with only minor adjustments made to cloud cover.
As of 715 pm: The drying trend behind the weak system has started as sinking air from aloft has already diminished much of the higher cloud deck. Have trended towards faster clearing as indicated by model guidance and makes sense given the expected downslope northerly flow. Have also tweaked temperatures down somewhat especially for late tonight.
Otherwise, once the wave is past this evening, the flow aloft will return to WNW and dry, allowing high pressure at the sfc to build in overnight. Clouds are expected to thin/scatter out toward daybreak Saturday, but not soon enough, so min temps were kept above normal. Once the high center makes it east of the Appalachian spine on Saturday, it should be in the proper position to support a dry cold air damming wedge Saturday afternoon, altho it will only be marked with a stratocu cloud deck expanding across the NC foothills and wrn Piedmont, trapped under a subsidence inversion. The development of the wedge and its potential for clouds will modulate the high temps in the afternoon, with the nrn foothills and NW Piedmont likely remaining below normal, but the wrn Upstate and northeast Georgia climbing above normal.
SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/. As of 115 PM Fri: A short wave ridge crosses the area Sunday with southwesterly flow developing Monday as a northern stream short wave moves into the Great Lakes and a southern stream wave moves to the AX/NM line. This allows other short wave energy to move through the flow and across the area. At the surface, cold high pressure noses down into the area from the NE. This high migrates eastward Monday and the air mass modifies. The surface flow weakens as a result of this limiting the potential of an in-situ CAD even as precip develops in the moist southerly low level flow ahead of the short waves and frontal system off moving into the OH and lower MS valleys. Precip chances to increase from west to east across the area Sunday night and Monday morning before tapering off back toward the mountains for the afternoon as the already weak isentropic lift weakens over the Piedmont areas but upslope flow remains into the mountains. QPF will be light outside of the mountains as well helping to limit CAD initiation. Although Sunday night lows will be cold across portions of the mountains, low level WAA takes place in the southerly flow warming temps to above freezing overnight. This should help keep precip all liquid as it develops overnight. Lows will be a couple of degrees above normal Saturday night then 5 to 10 degrees above normal Sunday night. Highs Sunday will be around 5 degrees below normal then rise to up to 5 degrees above normal Monday.
LONG TERM /MONDAY NIGHT THROUGH FRIDAY/. As of 230 PM Fri: Short waves from the short term will phase somewhat as they move east during the first part of the long term. These waves will push the cold front to our west into the area on Tuesday then east of the area Wednesday. This means likely precip chances Monday night through Tuesday evening with diminishing chances late Tuesday night and ending Wednesday. Cannot rule out some weak instability Tuesday afternoon and evening. Of course, shear will be quite strong, so this situation will need to be monitored for possible isolated severe storms. Isolated heavy rainfall will also be possible. Temps ahead of the front will be above normal. As cold air rushes in behind the front, some of the rain may change to snow across the mountains. Right now, this looks like a short lived NW flow event, so advisory level accums look unlikely.
Dry continental high will spread across the Southeast in the wake of the front. Max temps will fall back below normal Wed and Thu within this airmass. Guidance continues to feature the potential for a Miller A type low pressure system moving east along the Gulf Coast by Friday. The latest GFS and ECMWF have slowed this system down as northern and southern stream waves phase over the Midwest and go negative tilt. This is slowing the development and movement of the surface low as well. Have introduced late day chance PoP on Friday as some precip may be moving in from the south by then. The atmosphere modifies and with the late precip onset, any precip late Friday should be rain. There is still low confidence in this part of the forecast as it continues to change from run to run, so as usual, continue to monitor the forecast for the latest updates.
AVIATION /03Z SATURDAY THROUGH WEDNESDAY/. At KCLT and elsewhere: A developing wedge will support NE/E winds by 15Z for most, especially east of the mountains with low VFR/ high MVFR cigs likely at times for foothill locations, possibly including KHKY. BKN cigs also possible at times for KAVL after 15Z. Low confidence in wind direction for KAVL after 13Z.
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 .
02-08Z 08-14Z 14-20Z 20-00Z KCLT High 100% High 100% High 100% Low 57% KGSP High 100% High 100% High 100% High 89% KAVL High 100% High 100% High 100% High 91% KHKY High 100% High 100% High 89% Low 57% 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 . RWH NEAR TERM . 65/PM SHORT TERM . RWH LONG TERM . RWH AVIATION . 65
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.
|Macon County Airport, NC||15 mi||33 min||N 0||10.00 mi||Fair||36°F||34°F||95%||1023.7 hPa|
Link to 5 minute data for K1A5
Wind History from 1A5 (wind in knots)
|1 day ago||W||NW||W||W||W||Calm||Calm||Calm||Calm||N||W||N||NW||NW||NW||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm|
|2 days ago||Calm||Calm||S||Calm||Calm||Calm||Calm||Calm||N||N|
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Wind Forecast for Greenville-Spartanburg, SC (1,6,7,8)(on/off)  Help
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