Pennsylvania Air Quality Partnership Home
Skip Navigation

Forecast Map

BulletSouthwest
BulletLiberty-Clairton
BulletLehigh Valley
BulletSusquehanna
BulletSoutheast

 


NEWSROOM
FORECASTS
WHAT YOU CAN DO
HEALTH
MONITORING
EDUCATION

 

 
Hotlines
Southwest
Susquehanna
Lehigh Valley
Southeast

 
 
1-800-333-7688
1-888-772-1306
1-877-517-2969
1-800-872-7261

   
BulletBack to Home
BulletSite Index
BulletContacts
BulletImportant Links
BulletFree Plug-ins

 
Ozone Action Logo
Ozone
Action

 

 

 

 

 

 

 

 

 

 

 

 

 

Southwest PA Ozone/PM2.5 Forecast

Small map of Pennsylvania showing counties involved in the sw partnership.
Forecasted AQI for Ozone Air Quality Index Scale Forecasted AQI for PM2.5
October 31, 2014

 

Date: Friday, October 31, 2014
Action Day?:  No
Temperature:  Low 50s
Discussion:
On Friday, mostly cloudy skies will continue to persist over the region as the area of high pressure, which was to our west on Thursday, moves off to our east. At the same time, a storm system will drop southward across the eastern Ohio Valley. This will create an increase in moisture over our area later in the day (which could spawn for snow shower development over our area). Afternoon highs will not peak higher than the 50s. The combination of the cool conditions and the unsettled weather moving in will help to hold PM 2.5 concentrations within the good threshold.

Extended:
Over the coming days, expect temperatures to remain cool early on an upper level trough settles in over the Northeastern US. This trough will last remain in place through the weekend thanks to a developing area of low pressure off the East Coast. As the low lifts off to the north and east early next week, a new area of high pressure will build in across the Ohio Valley / Mid-Atlantic region. By Tuesday, this high will be shifting out to sea. The return flow on the backside of the high will allow temperatures to return to seasonable levels as we roll toward the middle of next week. At the same time, a new cold front will begin to advance into the region from the west. This frontal system is slated to push through our area in on Thursday. Once the front pushes through, a new high pressure system will build in over the Plains. The flow will turn out of the north and allow cooler and drier conditions to build back in to start the weekend. Overall, PM 2.5 concentrations are expected to remain primarily within the good category. Levels will increase toward the good / moderate threshold early next week when temperatures return to near normal. --Nolan

 

Go to the new SW PA Air Quality Partnership,Inc. web site!

Southwest
BulletList of Partners
BulletBecome a Partner
BulletPartner's Resource
BulletMeetings

Forecast Info
Bullet
Forecast via E-mail
BulletAction Days
Bullet
Tally of Forecasts
Bullet
Forecast Calendar

Monitoring
BulletCurrent AQI
BulletPollution Levels

Forecast Key
  AQI Forecast Key Information What Do
the Colors Mean?