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DEP declares Air Quality Action Day for May 31

A(n) Air Quality Action Day has been declared for Susquehanna Valley Area, PA, on Wednesday, May 31
Tomorrow’s Forecast
Wednesday, May 31:130 AQIUnhealthy for Sensitive GroupsParticle Pollution (2.5 microns)
 58 AQIModerateOzone
Extended Forecast
Thursday, Jun 1:95 AQIModerateParticle Pollution (2.5 microns)
 78 AQIModerateOzone

Current Conditions as of 1 PM on Tuesday: Temperatures are into the mid to upper 70s this afternoon under sunny skies. High pressure will be in control of the weather for the week with a warming trend through Friday bringing some heat to the region. *** Wednesday’s Forecast: Easterly flow from the last few days will continue Wednesday. Temperatures will climb a couple degrees higher than that of Tuesday. A mix of sun and clouds early will become mostly sunny by the afternoon. Hazy conditions are expected as a plume of smoke from a large wildfire in Nova Scotia will enter the region with the easterly flow around the area of high pressure. This smoke may be close enough to the surface that we see several hours with elevated concentrations of fine particulate matter (PM-2.5). Due to this plume being forecasted to enter the region and remain overhead and likely near the surface for several hours, concentrations may be in the Code Orange range on average for the day for a number of sites. Ozone formation will be mostly limited with the plume overhead but could still reach the moderate range. *
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