Showers and thunderstorms will move through part of the mid-Atlantic into Wednesday evening with the potential for a few isolated strong storms in the general vicinity of from Binghamton, N.Y., to Roanoke, Va.
8:45 p.m. EDT Wednesday: As the severe storms have weakened and the threat of severe weather is diminishing, this story is no longer being updated.
5:30 p.m. EDT Wednesday: Trees and power lines are down on Main Street in Mercersburg, Pa.
5:04 p.m. EDT Wednesday: Downed trees were blocking River Oak Drive and Fowler Street in Smyth County, Va.
4:39 p.m. EDT Wednesday: Winds brought down power lines in the city of Johnstown, Pa.
Overall, the threat of widespread severe weather is low, but there is the potential that a few of the thunderstorms may produce gusty winds, heavy downpours and hail.
These showers and thunderstorms will be moving ahead of a cold front that will be advancing through the region from west to east Wednesday night.
AccuWeather Meteorologist Steve Travis said, "The line of heavy showers and thunderstorms moving through Pennsylvania and Virginia has weakened from just a few hours ago, but this line still has the potential to produce locally heavy rains with rainfall rates of 0.50 inches per hour and wind gusts to 50 mph that may knock down trees and power lines."
Due to the timing of these storms, they will have little to no impact on the evening commute around New York City, Philadelphia, Washington, D.C., and Richmond. However, some downpours with thunder and lightning are possible in these areas during the middle of the night.
Although storms may produce gusty winds, heavy downpours and hail, they will not be capable of producing tornadoes over the mid-Atlantic region.
However, a few thunderstorms over part of southeastern Louisiana to the western part of the Florida Panhandle can be intense enough to do just that into Wednesday evening.
Temperatures will drop to a few degrees below normal on Thursday in the wake of the cold front as cool Canadian air moves into the Northeast. Temperatures will remain below average on Friday as this cool air holds in place over the region.
Hurricane Matthew will take a northward turn this weekend, which will bring the storm along the Atlantic coast of the United States next week.
Hurricane Matthew will threaten the central and northern Caribbean with flooding rain, damaging winds and an inundating storm surge early next week.
It will feel like an extended winter for those living from the northern Plains to the eastern U.S., as cold and snowy conditions last longer than normal.
Chaba remains on track to become a powerful typhoon and could threaten lives and property across the Ryukyu Islands and mainland Japan next week.
Persistent downpours will raise the flood risk in part of the mid-Atlantic into Friday night, while rain will spread over the balance of the northeastern United States into the weekend.
A large chunk of the United Kingdom will catch a break from the recent unsettled weather during the first week of October.
Lander, NY (1982)
15.4 inches of of snow (29th-30th). Total of 32.9 inches for month (Sept. record).
Record dry September: Pittsburgh, PA - Only 0.28" this month; driest September on record (old record 0.57 inches in 1893) Greensboro, NC - Driest month ever (only a trace of rain) Columbia, SC - Only 0.07" of rain.
Central and Western NY (1991)
Record cold morning; Buffalo, had 32 degrees, tying the all-time September low. Syracuse dropped to 28 degrees, breaking the old record of 32 set in 1942. Albany hit 28, erasing the 29-degree mark of 1951. Other lows (not official records) included: 21 degrees at Angelica, 22 at Watertown, 24 at Ithaca and 25 at Elmira.