AIR QUALITY ACTION DAY HAS BEEN DECLARED FOR FRIDAY, JUN 12

The Pennsylvania Department of Environmental Protection has declared an Air Quality Action Day for the Susquehanna Valley on Friday, June 12

 Forecast
Friday, Jun 12: 103 AQI Unhealthy for Sensitive Groups Ozone
81 AQI Moderate Particle Pollution (2.5 microns)

Extended Forecast
Saturday, Jun 13: 79 AQI Moderate Ozone
76 AQI Moderate Particle Pollution (2.5 microns)
Current Conditions: At 2 p.m. EDT this Thursday afternoon, hot and humid conditions exist across the region south of a nearly stationary cold front moving across northern parts of Pennsylvania. Already, ozone is moving well into the moderate range, and some spots will even average code ORANGE before the day is out. Temperatures are rising close to 90 degrees as well. With the higher humidity levels, and some smoke still present in the boundary layer, fine particulate is also well into the moderate range. A thunderstorm can pop in a few spots later this afternoon and evening, otherwise partly cloudy and humid overnight. *** Friday’s forecast: Hot and humid conditions will continue on southwest winds for the day Friday. Parts of the area will experience code ORANGE ozone levels by the afternoon hours. Afternoon temperatures will soar into the lower 90s. With a decent amount of humidity and lighter winds, fine particulate will remain well into the moderate range. A thunderstorm may be sparked in the late afternoon or early evening, but may not be enough to limit ozone formation. *** Extended forecast: A stronger cold front will be moving southeastward towards the area on Saturday, increasing shower and thunderstorm coverage across the area. Ozone concentrations should thus fall into the lower moderate range. Afternoon temperatures in the middle to upper 80s with a decent amount of humidity and light winds keeping PM2.5 in the moderate range. High pressure will move southward into the area on Sunday, and bring more of an north to northeast flow which will act to keep ozone concentrations in the lower moderate range. Southwest flow out ahead of another cold front on Monday will act to keep ozone in the moderate range, with a couple of afternoon and evening thunderstorms. With upper level ridging and winds shifting back into the southwest, ozone levels may increase later on next week as hot and humid conditions return.—McAuliffe
Here are some Air Quality Action Day tips you can follow to help reduce pollution:

Days when ozone levels are expected to be high:

* Conserve electricity and set your air conditioner at a higher temperature.
* Choose a cleaner commute—share a ride to work or use public transportation. Bicycle or walk to errands when possible.
* Refuel cars and trucks after dusk.
* Combine errands and reduce trips.
* Limit engine idling.
* Use household, workshop, and garden chemicals in ways that keep evaporation to a minimum, or try to delay using them when poor air quality is forecast.

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