textproduct: Wilmington

WHAT HAS CHANGED

Decreased low temperatures overnight in addition to the lows Thursday and Friday night.

KEY MESSAGES

1) A significant/prolonged arctic outbreak will continue through this weekend, with periods of dangerous extreme cold. Outdoor exposure should be limited.

2) Several chances of light snow.

DISCUSSION

KEY MESSAGE 1) A significant/prolonged arctic outbreak will continue through this weekend, with periods of dangerous extreme cold. Outdoor exposure should be limited.

Continued cold conditions are expected. The entire region is expected to remain below freezing through Tuesday morning. While a few spots near and south of the Ohio River could see temperatures rise just above freezing Tuesday, Wednesday, and Thursday afternoon, most locations will stay below freezing through the week. Sub zero temperatures are expected across at least part of the area for low temperatures every night through Saturday night. While winds are not expected to be overly high during this time, wind chill values will be even cooler and will occasionally reach criteria for cold headlines. Thursday night will be borderline and therefore after collaboration, decided to hold off on cold headlines at this time. Continued the cold weather advisory for overnight into the morning daytime hours this morning. Temperatures have been highly variable and expect that trend to continue, however many locations have dropped below zero this morning.

KEY MESSAGE 2) Several chances of light snow.

Several weak systems will bring the chance for light snowfall to the area. A system moving primarily south of the region will bring the potential for some light snow to generally near and south of the Ohio River Friday morning. Additional snow showers will be possible later in the day on Friday as an upper level disturbance moves through. Another system will move across the region on Monday bringing the potential for light snow. There is more variability, however models indicate some potential for additional snow Tuesday night through Wednesday night. Will keep an eye on these systems to see if any become more pronounced with time.

AVIATION /12Z THURSDAY THROUGH MONDAY/

VFR conditions will start out the TAF period. There will be the potential for some light snow showers or snow flurries at KCMH and KLCK off and on today. Limited mention to a tempo snow shower this morning at this time. Clouds will develop and work into the TAF sites through the day. While some locations will stay scattered, other area TAF sites will have enough cloud cover for MVFR cigs. This will continue into tonight. There are some indications that fog will be possible tonight, however given the lack of fog formation this morning, limited any fog mention to MVFR at this time and not at all locations. A system will move just south of KCVG and KLUK TAF sites tonight. At this time it looks as though snow will stay south of the TAF sites and therefore kept dry conditions in the TAF.

OUTLOOK...MVFR ceilings and vsbys possible Friday morning. MVFR ceilings also possible Friday afternoon, and then again Saturday afternoon into Saturday night. MVFR conditions again will be possible on Monday.

ILN WATCHES/WARNINGS/ADVISORIES

OH...Cold Weather Advisory until 11 AM EST this morning for OHZ026-034- 035-042>046-051>056-060>065-070>074-077>082. KY...None. IN...Cold Weather Advisory until 11 AM EST this morning for INZ050-058- 059.