Area Forecast Discussion
Issued by NWS Greer, SC
Issued by NWS Greer, SC
098 FXUS62 KGSP 142334 AFDGSP Area Forecast Discussion National Weather Service Greenville-Spartanburg SC 734 PM EDT Mon Sep 14 2026 .WHAT HAS CHANGED... Rain chances were increased for tonight, especially along the escarpment and foothills. The aviation discussion was updated for the 00z TAFs. && .KEY MESSAGES... 1. Relatively warm late summer weather will persist through the week, with low risk for significant weather. && .DISCUSSION... Key message 1: Relatively warm late summer weather will persist through the week, with low risk for significant weather. The weather is still looking fairly quiet thru the week with a fairly low chance for any high impact weather. We have a back-door cold front moving down from the north later this afternoon/evening which could help produce a few showers, but that`s about it. An upper ridge builds eastward over our region over the next 24 to 48 hrs and helps keep the convective environment generally unfavorable/suppressed with most of the area remaining dry. With the fropa later in the day today, we get one more hot day with high temps 5 to 10 degrees above normal. We still have the poten- tial for some weak, dry, cold air damming as broad surface high pressure moves from New England on Tuesday to a position off the coast of New England and the Maritime Provinces on Wed. There could be some shallow moisture within the ELY low-level flow on Tues that helps keep temperatures around normal with some increase in low clouds, but there will be minimal forcing for precip and any appreciable moisture doesn`t hang around for long. This should result in temps warming back above normal on Wed, with highs back in the lower 90s east of the mtns by the end of the week. As the airmass modifies and warms, we expect a return of high elevation scattered diurnal showers and thunderstorms from Thurs thru next weekend. && .AVIATION /00Z TUESDAY THROUGH SATURDAY/... At KCLT and elsewhere: The forecast stratus off VFR at all terminals as a backdoor cold front approaches from the northeast. As the front pushes into the area overnight, a plume of moisture will pool ahead of the boundary and help to promote the development of at least isolated showers along with low stratus. TEMPO groups have introduced to account for any associated restrictions. Showers should dissipate within several hours of sunrise along with lifting and scattering of any low stratus. This will bring a return to VFR conditions by mid to late morning. Winds will be out of the northeast and could be as high as 9-12kts with a few isolated low- end gusts not out of the question. Winds will relax through the afternoon behind the front. Outlook: Mostly dry conditions are expected to persist through the middle of the week. Shower chances and associated restrictions increase later in the week. Mountain valley fog and low stratus is possible each morning through the week. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...None. NC...None. SC...None. && $$ JPT/TW