textproduct: Greenville-Spartanburg

WHAT HAS CHANGED

Lowered temperatures slightly for Monday for the potential of weak Cold Air Damming.

The Aviation Discussion was updated.

KEY MESSAGES

1. Dry conditions with a warming trend through Saturday. Shower and thunderstorm chances return early next week.

DISCUSSION

Key message 1: Dry conditions with a warming trend through Saturday. Shower and thunderstorm chances return early next week.

Deep layer ridging over the southeastern CONUS remains in place through Saturday. Mostly clear skies with periods of cirrus are expected. Max temperatures are expected to be near normal this afternoon and nudging up a few ticks on Saturday with widespread mid to upper 80s outside the mountains and major mountain valleys, with even a few spots flirting with the 90 degree mark along and east of I-77. Dewpoints are on the rise, but still at values to make conditions outside feel fairly comfortable for early June.

Vigorous shortwave will move towards the eastern CONUS and allow for the ridge to gradually breakdown, while a surface high shifts offshore the Mid-Atlantic Coast during the early part of next week. A backdoor front shown moving towards the area and could allow for weak CAD to develop late Monday into Tuesday. With the damming high in place with more clouds and higher PoPs, expect temperatures to return back to normal values or even slightly below. A warming trend returns later next week after Tuesday with 90s possible by the end of the forecast period. Chances of mainly diurnal convection increases next week as well with better moisture influx from the Gulf and a relatively active synoptic setup.

AVIATION /18Z FRIDAY THROUGH WEDNESDAY/

At KCLT and elsewhere: VFR conditions will prevail through the forecast period with patches of thin cirrus expected. There will be another round of mountain valley fog/low stratus by daybreak Saturday, but expected to remain away from KAVL. Light southwest winds through this afternoon and becoming light and variable overnight. Winds pick up out of the southwest again by Saturday afternoon at 5-10 kts.

Outlook: Expect dry, VFR conditions to continue into the weekend. The potential for morning mtn valley fog/low stratus will gradually increase each day. Diurnal convection returns next week.

GSP WATCHES/WARNINGS/ADVISORIES

GA...None. NC...None. SC...None.