Unseasonably warm conditions will continue around Harrisburg, Pa., through the weekend, ahead of possible drenching rain from Karen.
High temperatures well in the 80s and generally rain-free weather will continue around the region through the day Sunday.
However, two weather systems have a chance at bringing a dose of heavy rain by early next week.
A front from the Plains is forecast to sweep off the East coast later Tuesday. Ahead of the front, showers and thunderstorms are in store with a southerly flow of moisture early next week.
Surviving within that flow may be Karen as a tropical rainstorm.
If Karen's rain does make the trip this far north, it would raise the possibility of flash and urban flooding, as well as travel delays, most likely from the afternoon/evening drive Monday with possible lingering effects for Tuesday morning's rush hour.
Most areas need rain and could easily handle a couple of inches over a 6- to 12-hour stretch with few problems as the last thorough soaking was Sept. 21. There is a chance of heavier rainfall if Karen gets totally involved.
Winds ahead of and during the rain may be rather strong Monday.
Some areas near and just east of the track of the center of circulation of Karen could be hit with a severe thunderstorm during Monday/Monday evening.
The air behind the front and/or Karen next week will be cooler than this week, but not abnormally so. Temperatures will still average near to above normal for the rest of next week.
While powerful Hurricane Ignacio is expected to pass north of Hawaii early this week, the island chain will not be able to escape all of the impacts.
Tropical Storm Fred has formed off of the African Coast and will threaten the Cape Verde Islands early this week.
While Erika has weakened to a tropical rainstorm, Florida will still become the target of potentially flooding downpours this week.
A strong storm system moved into Washington on Saturday, delivering powerful winds that lead to widespread damage and power outages.
A push of summer heat and humidity will make its way into the Northeast this week.
The 2015 US Open Tennis championships begin Aug.31 and heat and humidity will return for to the Big Apple for the tournament's first week.
Houston, TX (1990)
A total of 0.31 inches of rain today. This was the first measurable rain in Houston since July 30th with 0.16 inches. This is the longest dry spell ever in Houston in August.
Philadelphia, PA (1991)
Mercury reached 90 degrees or better for the 49th day this year, as the high was 92. This tied the all-time record for the most 90 plus days in a year, set in 1988. The record would be broken in September. The total for 1991 was 53 days.
West Chester, PA (1922)
So much hail fell that fields were covered with up to two feet drifted hail--the next day!!