The first in a series of waves of rain arrives tonight with rain lasting through Thursday night. We are watching the chance for stronger storms late on Saturday.Thursday: Impact Day for heavy rain/stormsThursday is an Impact Day with pockets of heavy rain at times and a small chance for an isolated thunderstorm. Rain showers will start before midnight Thursday with three rounds of rain likely through the day: one in the morning, one around midday through the evening commute, and one Thursday evening into early Friday morning.By the time rain is done, we could be seeing one to two inches of rain across Western Pennsylvania with higher amounts south of Pittsburgh. We will have to keep an eye on area rivers, especially the Mon and Yough, as they will see river rises. Right now, no river is expected to hit flood stage.Saturday: Impact Day for late day storms and rainFriday is looking to be more on the dry side before we head into Saturday, which is an Impact Day. We will have our best chance to see thunderstorms and heavy rain in the area on Saturday.Some showers may develop in the afternoon ahead of a cold front that looks to get here late in the day. As the front arrives, we will have warmed well into the 70s. The warm air will provide fuel for storms as the cold front drops in around dinner. Any storm that does develop could produce gusty winds and heavy rain. The system should move fast enough that flooding is not a major concern, but if we see heavy rain on swollen rivers, that could push them out of their bank.We will dry out and stay warm into the middle of next week.TONIGHT: Mostly cloudy, rain developing. Low 50°THURSDAY – IMPACT DAY: Rain showers and an isolated thunderstorm. High: 63°, low: 56°.FRIDAY: Partly to mostly cloudy with an isolated shower possible. High: 70°, low: 58°.SATURDAY – IMPACT DAY: Mostly cloudy with afternoon and evening rain and storms. High: 74°, low: 45°.
PITTSBURGH —
The first in a series of waves of rain arrives tonight with rain lasting through Thursday night. We are watching the chance for stronger storms late on Saturday.
Thursday: Impact Day for heavy rain/storms
Thursday is an Impact Day with pockets of heavy rain at times and a small chance for an isolated thunderstorm. Rain showers will start before midnight Thursday with three rounds of rain likely through the day: one in the morning, one around midday through the evening commute, and one Thursday evening into early Friday morning.

Hearst Owned
Heavy rain through Friday morning means one to two inches of rain is possible, especially south of Pittsburgh.
By the time rain is done, we could be seeing one to two inches of rain across Western Pennsylvania with higher amounts south of Pittsburgh. We will have to keep an eye on area rivers, especially the Mon and Yough, as they will see river rises. Right now, no river is expected to hit flood stage.
Saturday: Impact Day for late day storms and rain
Friday is looking to be more on the dry side before we head into Saturday, which is an Impact Day. We will have our best chance to see thunderstorms and heavy rain in the area on Saturday.

Hearst Owned
The best chance to see storms will late Saturday afternoon and Saturday evening with a cold front.
Some showers may develop in the afternoon ahead of a cold front that looks to get here late in the day. As the front arrives, we will have warmed well into the 70s. The warm air will provide fuel for storms as the cold front drops in around dinner. Any storm that does develop could produce gusty winds and heavy rain. The system should move fast enough that flooding is not a major concern, but if we see heavy rain on swollen rivers, that could push them out of their bank.
We will dry out and stay warm into the middle of next week.

Hearst Owned
Rain chances each day through Saturday. A warm and dry start to next week.
TONIGHT: Mostly cloudy, rain developing. Low 50°
THURSDAY – IMPACT DAY: Rain showers and an isolated thunderstorm. High: 63°, low: 56°.
FRIDAY: Partly to mostly cloudy with an isolated shower possible. High: 70°, low: 58°.
SATURDAY – IMPACT DAY: Mostly cloudy with afternoon and evening rain and storms. High: 74°, low: 45°.