When It Rains It Pours. Flash Flood Watch For Most of Western PA Through Wednesday Morning.

Western PA will see rain again today and tomorrow as a chance of rain will linger into Thursday. A flash flood watch has been issued through Wednesday morning for most of western PA. It all depends on the track on Tropical Storm Joaquin in the Atlantic and how quickly that moves away to let this moisture push all the way through. Highs will rise into the upper 60s to mid 70s today before low to mid 60s move in on Wednesday and upper 50s to low 60s push in on Thursday. Lows will drop into the upper 50s to low 60s tonight before 40s roll in on Wednesday night and Thursday night.

The DC Region will see rain over the next couple days as well as a chance of showers holds on into Thursday. Highs will rise into the upper 70s to low 80s today and Wednesday before values decline into the low to mid 60s on Thursday. Lows will only dip into the upper 60s to low 70s tonight before low to mid 60s press in on Wednesday night and mid 50s track in on Thursday night. Hope you all have a great two-for-Tuesday! Stay dry!

Current (~10:30-11am) Temperatures:

  • Erie, PA: 71
  • Franklin, PA: 66
  • New Castle, PA: 67
  • Butler, PA: 66
  • Pittsburgh, PA (KAGC): 67
  • Uniontown, PA: 66
  • State College, PA: 70
  • Frederick, MD: 75
  • BWI Airport, MD: 74
  • DC (KDCA): 79

Forecast:

Western PA:

Main threat:  Flooding potential there. Be careful if you come across deep waters on roads.

  • Today: Rain. Could be heavy at times. Highs: Upper 60s to Mid 70s Overnight Lows: Upper 50s/Low 60s
  • Wednesday: Rain. Highs: Low to Mid 60s Overnight Lows: 40s
  • Thursday: Chance of showers. Highs: Upper 50s to Mid 60s Overnight Lows: 40s

DC Region: 

Main threat: Ponding and slick roads are possible.

  • Today: Rain. Could be heavy at times. Highs: Upper 70s/Low 80s Overnight Lows: Upper 60s/Low 70s
  • Wednesday: Rain. Highs: Upper 70s/Low 80s Overnight Lows: Low to Mid 60s
  • Thursday: Chance of rain. Highs: Low to Mid 60s Overnight Lows: Mid 50s

Good News: Rain is generally needed in the region.

Bad News: Chance of rain holds on throughout the week, especially closer to the coast. DC Region could see rains from the outer edge of the tropical storm which could cause localize flooding. Nothing too significant though.