textproduct: Columbia

SYNOPSIS

Expect dry conditions through Sunday with near to above normal temperatures. A dry frontal passage late this weekend will result in cooler temperatures on Monday, followed by a steady warming trend through the remainder of the period.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/

Key message(s):

- High pressure will prevail, with clear skies, light winds and slightly below normal temperatures.

Surface high pressure will continue to shift off the Mid- Atlantic/Carolina coast tonight, allowing a cold front to approach from the west. The airmass will remain dry throughout the column, resulting in clear skies. Winds at the surface will be light/variable through the night, but a low level jet will shift over the area ahead of the approaching cold front and this could limit radiational cooling somewhat. Lows tonight will be near to slightly below normal, generally in the low to mid 30s most areas.

SHORT TERM /6 AM SUNDAY MORNING THROUGH MONDAY NIGHT/

Key message(s):

- Warmer and continued dry on Sunday despite the passage of a cold front.

- A cooler and even drier air mass is in place on Monday.

A dry cold front will clear the FA on Sunday, shifting winds to the northwest and eventually north. Despite the passage of the boundary, it looks like CAA will hold off until Sunday evening, allowing for warmer temperatures during the daytime hours with forecast highs generally in the 60s. Temperatures and dewpoints drop steadily at night as the cooler and drier air mass filters in. Lows Sunday night will generally be in the 30s, with some upper 20s possible across the Northern Midlands and normally cold locations. Strong high pressure will be situated in the Mid-Atlantic on Monday resulting in pseudo wedge conditions across the Midlands and CSRA. Northeasterly flow around the anticyclone will result in a cooler day across the region with highs in the 50s for most locations. Increasing cloudiness Monday night should limit cooling to an extent with low temperatures in the 30s.

LONG TERM /TUESDAY THROUGH SATURDAY/

Key message(s):

- Continued dry with a noticeable warming trend.

The weak zonal flow that will be in place through the short term transitions as upper ridging builds over the Central CONUS. This upper pattern should promote warming temperatures across the Southeastern US during the long term. At the surface, a series of high pressure centers should prevent any storm systems from bringing precipitation to the region and the chance of rain remains low, less than 20 percent, through the extended. While passing storm systems may bring clouds to the region at times, warm and dry conditions are likely to be the theme through the middle to late portion of next week.

AVIATION /00Z SUNDAY THROUGH THURSDAY/

VFR conditions will prevail through the forecast period.

High pressure will remain in place over the area tonight with light winds. Air mass is too dry for any significant ground fog at the terminals. On Sunday a dry cold front will approach from the north. A few high clouds may stream over the region, but nothing that will cause any restrictions. EXTENDED AVIATION OUTLOOK...Drier air should remain in place for the rest weekend with low chances for restrictions. Low level moisture increases somewhat for Monday night into Tuesday with chances for restrictions.

CAE WATCHES/WARNINGS/ADVISORIES

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