A soaking is on tap for the Harrisburg area on Monday with Karen partially to blame.
An approaching cold front and some moisture from Karen, now a tropical rainstorm, will combine to spread a band of heavy rain through Harrisburg.
Monday will start on a damp note with low-hanging clouds, patchy fog and a passing shower. The heavy rain will arrive around lunchtime and persist through the mid-afternoon before tapering off by the evening commute.
The downpours threaten to slow down motorists by reducing visibility and heightening the risk of vehicles hydroplaning at highway speeds.
Umbrellas will be a necessity for those traveling by foot. Airline passengers could encounter delays, even in the morning from the clouds and fog.
The rain will amount to around an inch in less than six hours. There will be locally higher amounts, and that is where AccuWeather.com meteorologists will be most concerned for flash flooding to occur.
Fallen leaves could worsen the situation by clogging storm drains and making roads slippery.
A couple of thunderstorms will also accompany the heavy rain; the strongest of those thunderstorms could produce winds capable of causing minor tree damage and sporadic power outages.
Following the passage of the cold front, a drier day with the return of sunshine will unfold for Tuesday. Highs in the upper 60s and low humidity will compliment not only this day, but also Wednesday.
The sunshine and comfortable temperatures are expected to hold through the late week.
Travel restrictions are already in place in advance of the blizzard set to wallop the northeastern United States.
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An all-out blizzard will slam the New York City area and New England Monday night through Tuesday, bringing many communities to a standstill.
Lingering midwinter cold and additional rounds of snow will add to difficulties for cleanup and those without power after the Blizzard of 2015.
For Atlantic Canada, yet another winter storm will bring widespread travel disruptions on Tuesday.
While snow will wind down by Tuesday, cold air will hang on through midweek before the return of snow comes on Thursday.
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Paralyzing Midwest blizzard: 100 killed, wind gusts to 100 mph, 25-foot drifts, many roofs collapsed.
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