• Please join us for the CAB Community Meeting, usually held on the first Thursday of every month at 7:00PM. Please check Posts for speaker information, time, and location.

    Community meetings are generally held at Second Presbyterian Church, 528 Garland Drive, Carlisle, PA

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DEP Issues a Code Orange Air Quality Action Day Forecast for Southcentral Counties for June 16-18, 2018

The Pennsylvania Department of Environmental Protection and its regional air quality partnerships have forecast a Code Orange Air Quality Action Day for ozone on June 16, 2018 for the Pittsburgh region (encompassing Allegheny, Armstrong, Beaver, Butler, Fayette, Indiana, Mercer, Washington, and Westmoreland counties). A Code Orange Air Quality Action Day for ozone is also forecast on June 17 and 18 for the Pittsburgh region, southcentral counties (Cumberland, Dauphin, Lancaster, Lebanon, and York counties) and the Lehigh Valley (Berks, Lehigh, and Northampton counties).

Forecast
Sunday, Jun 17: 115 AQI Unhealthy for Sensitive Groups Ozone
62 AQI Moderate Particle Pollution (2.5 microns)

Extended Forecast
Monday, Jun 18: 106 AQI Unhealthy for Sensitive Groups Ozone
66 AQI Moderate Particle Pollution (2.5 microns)
Tuesday, Jun 19: 92 AQI Moderate Ozone
68 AQI Moderate Particle Pollution (2.5 microns)

On air quality action days, young children, the elderly and those with respiratory problems, such as asthma, emphysema and bronchitis, are especially vulnerable to the effects of air pollution and should limit outdoor activities.

The U.S. Environmental Protection Agency’s standardized air quality index uses colors to report daily air quality. Green signifies good; yellow means moderate; orange represents unhealthy pollution levels for sensitive people; and red warns of unhealthy pollution levels for all.

To help keep the air healthy, residents and business are encouraged to voluntarily restrict certain pollution-producing activities by:
•    Refueling cars and trucks after dusk
•    Setting air conditioner thermostats to a higher temperature
•    Carpooling or using public transportation; and
•    Combining errands to reduce trips.

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DEP extends air quality alert to Saturday and Sunday

A(n) Air Quality Action Day has been declared for Susquehanna Valley, PA, on Saturday, Dec 12
Tomorrow’s Forecast
Saturday, Dec 12: 105 AQI Unhealthy for Sensitive Groups Particle Pollution (2.5 microns)

Extended Forecast
Sunday, Dec 13: 104 AQI Unhealthy for Sensitive Groups Particle Pollution (2.5 microns)
Monday, Dec 14: 60 AQI Moderate Particle Pollution (2.5 microns)
Tuesday, Dec 15: 50 AQI Good Particle Pollution (2.5 microns)
*** Saturday’s Forecast: If conditions over the past few days had to be summarized using three words, a good choice would be to use foggy, hazy, and mild. All three of those will be the story for the weather again on Saturday. Temperatures have the potential to climb into the 60s, which is well above normal for almost the middle of December. Light surface winds and increasing moisture as warmer air moves in aloft ahead of the next approaching system may limit just how high these temperatures peak for the day as the fog will continue and should be tough to break under mostly cloudy conditions. Based on the light winds, warmer air moving in aloft, continually increasing moisture near the surface, and PM-2.5 concentrations already elevated in the high moderate range for some locations on Friday, it is expected that there will be at least a few scattered Code Orange readings across the region. There is a possibility that the fog becomes so thick that it seems as if a light rain is falling, which we sometimes see helps to clear out the air somewhat. This precipitating fog scenario likely would not occur across the entire area, perhaps more situational due to terrain/etc., so a continuation of expecting Code Orange PM-2.5 concentrations will continue. *** Sunday’s Forecast: Similar conditions as Saturday will occur on Sunday with the fog, haze, and above normal temperatures continuing. Moisture levels will continue to rise with the peak of the warm air aloft moving in overhead by late in the day. Temperatures are again expected to reach the 60s, but thick fog and mostly cloudy skies will yet again have a say in that. Unless concentrations fall across the region over the course of the day on Saturday, PM-2.5 should once again remain at levels high in the moderate range to low Code Orange range. *** Monday’s Forecast: The best chance for precipitation over this forecast period will be on Monday, but with the mild temperatures will be in the form of rain showers. Monday will see an interesting transition from the fog and haze from over the weekend to windy and wet. On average for the day, PM-2.5 concentrations will likely end up in the moderate range. The first few hours of the day could see concentrations continue at Code Orange levels that will fall over the course of the day as the winds increase and precipitation later arrives. Some locations could very well fall to the good range by the end of the day. If the fog struggles to lift over both days of the weekend, the increasing winds mixing the warmer air aloft down to the surface could result in the highest temperature over these three days occurring briefly on Monday. The precipitation will move out by late evening.

For more information, go to DEP news release

DEP declares Ozone Air Quality Action Day for Friday, Sept 18

A(n) Air Quality Action Day has been declared for Susquehanna Valley, PA, on Friday, Sep 18
Tomorrow’s Forecast
Friday, Sep 18: 102 AQI Unhealthy for Sensitive Groups Ozone
64 AQI Moderate Particle Pollution (2.5 microns)

Extended Forecast
Saturday, Sep 19: 72 AQI Moderate Ozone
56 AQI Moderate Particle Pollution (2.5 microns)
Current Conditions: A strong area of high pressure continues to hold it’s grip on the area at 2 p.m. EDT this Thursday afternoon. Under the high, winds are very light to near calm. Over the past couple of days, this has allowed both fine particulate and ozone precursors to build up. The result of this is that ozone levels are in the code ORANGE range this afternoon. Winds will continue light into the day Friday, with enough sunshine and heat available to again push ozone levels upward into the lower code ORANGE range. For tonight, we expect a mainly clear sky and comfortable conditions. Lows will bottom out close to 60 degrees. *** Friday’s forecast: More sunshine than clouds for Friday with temperatures topping out well above normal for this point in September. With very little mixing, ozone will rise to the lower code ORANGE range across the area. Fine particulate will continue to be well into the moderate range. Mostly clear and mild Friday night with lows in the lower 60s. *** Extended forecast: Relief is in sight for those who seek better air quality as a cold front will pass through sometime Saturdaynight. During the day Saturday, expect clouds and sunshine with increasing south winds. These winds will keep fine particulate and ozone levels in the middle moderate range. Still on the warm side with afternoon temperatures in the middle 80s. Turning cooler with winds shifting into the north on Sunday. High temperatures will only recover into the lower to middle 70s. Air quality will improve to the good range. More clouds than sunshine with onshore winds developing as we move into the early part of next week. Low levels of ozone and fine particulate will result as temperatures may struggle to reach 70. The middle of the week looks to be mostly dry, with temperatures just a little above normal. Air quality should remain good due to a continued easterly flow.—McAuliffe

DEP has declared Air Quality Action Day on Thursday, Sep 17

A(n) Air Quality Action Day has been declared for Susquehanna Valley, PA, on Thursday, Sep 17
Forecast
Thursday, Sep 17: 102 AQI Unhealthy for Sensitive Groups Ozone
66 AQI Moderate Particle Pollution (2.5 microns)

Extended Forecast
Friday, Sep 18: 74 AQI Moderate Ozone
61 AQI Moderate Particle Pollution (2.5 microns)
Current Conditions: At 2 p.m. EDT this Wednesday afternoon, high pressure over the Mid-Atlantic continues to bring sunshine with pleasantly warm temperatures to the region. With winds quite light, the air has stagnated some over the past couple of days, and this has allowed pollutants to build. Both fine particulate and ozone will be into the middle moderate range this afternoon. Mostly clear and comfortably cool tonight with lows in the upper 50s. *** Thursday’s forecast: There will be a good deal of sunshine on Thursday with another warm afternoon. Highs will reach the lower to middle 80s. With full sun, ozone levels will cross the code ORANGE threshold in the afternoon. Fine particulate will go well into the moderate range with the light southwest winds. Mostly clearThursday night with lows in the upper 50s. *** Extended forecast: While it will remain on the warm side on Fridaywith sunshine most of the time, winds will shift into more of a southeasterly direction, and this will keep ozone levels in the low to mid moderate range. Fine particulate will also remain at moderate levels. Highs will reach the lower to middle 80s once more. Sunshine and a few clouds Saturday. Continued warm with highs in the middle 80s. South to southeast winds will keep ozone and fine particulate from going above the moderate range. A cold front then crosses the region Saturday night. While this front will bring very little rain, it will mean an air mass change for Sunday into Monday. North to northeast winds behind the front will create enough mixing to finally clean the atmosphere out. An onshore flow may then continue into the early part of next week as high pressure gets situated over New England. This will mean more seasonable temperatures and better air quality.—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.

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.

DEP has declared an AIR QUALITY ACTION DAY for the SUSQUEHANNA VALLEY on Tuesday, March 10

Air Quality Action Day has been declared for Susquehanna Valley on Mar 10
Tomorrow’s Forecast
Tuesday, Mar 10: 105 AQI Unhealthy for Sensitive Groups Particle Pollution (2.5 microns)

Extended Forecast
Wednesday, Mar 11: 81 AQI Moderate Particle Pollution (2.5 microns)
Current Conditions: Our weather pattern has finally changed into something that more resembles March. High pressure is providing plenty of sunshine and milder air this Monday afternoon. Temperatures in many areas have moved past the 50 degree mark for the first time all year. Light winds with added warmth pushed fine particulate levels well into the moderate range this morning, but these concentrations are falling this afternoon with increasing winds. Overall, we will remain in the moderate range on average for today. Clear this evening, then clouds will increase and thicken later on tonight. Limited mixing and moisture advection will mean fine particulate levels rise into the code ORANGE range overnight. Low temperatures falling only into the lower 30s. ***Tuesday’s forecast: An Air Quality Action Day will be declared for Tuesday for elevated fine particulate concentrations. With plenty of low level moisture and near calm winds, concentrations should remain at code ORANGE levels through the day. Upper level flow from the southwest will send moisture our way in the form of rain later Tuesday afternoon and night. A little cooler than Monday with highs reaching into the lower to middle 40s. A shift in flow direction will turn the rain off later on Tuesday night, with fine particulate perhaps dropping some into the upper moderate zone.

For more information, go to http://www.airnow.gov/index.cfm?action=airnow.local_city&cityid=165 

AIR QUALITY ACTION DAY HAS BEEN DECLARED FOR SUSQUEHANNA VALLEY ON FRIDAY, JAN 23

 The Department of Environmental Protection has declared an air quality action day for Jan.23.
Tomorrow’s Forecast
Friday, Jan 23: 110 AQI Unhealthy for Sensitive Groups Particle Pollution (2.5 microns)

Extended Forecast
Saturday, Jan 24: 81 AQI Moderate Particle Pollution (2.5 microns)
Current conditions: Clouds and fog are breaking up across the region as of 1 p.m. EST this Thursday afternoon. High pressure will slowly build into the area overnight tonight into Friday. We are concerned about very light winds near the surface as the high builds in with very little mixing expected. In addition, temperature inversions are likely to trap PM2.5 close to the ground. So for tonight, expect some clearing skies with very light winds. Fine particulate will increase into the code ORANGE range later on tonight as the temperature inversion develops. Low temperatures close to 20 degrees. Friday’s forecast: A PM2.5 Action Day will be declared for the day Friday as very light winds and some warming aloft will bring any mixing in the boundary layer to a halt. Code ORANGE concentrations of fine particulate are likely with this scenario. With some sunshine, afternoon temperatures will recover into the middle 30s. A storm system coming out of the deep South will then move northeastward towards us Friday night into Saturday, and with the current forecast track, we could be in line for a quick inch or so of snow during this period. Precipitation could briefly turn to a bit of rain by later Saturday morning as temperatures creep just above the freezing mark. While atmospheric mixing will be a little greater on Saturday, fine particulate concentrations will remain well into the moderate range. *** Extended forecast: The weather pattern will continue to be an active one as we move into the early part of next week. A clipper system will move eastward and affect the area later Sunday night into Monday with snow. Because the low is expected to track more to the south, precipitation could fall as all snow as cold air remains in place. Following this, a large area of high pressure builds in for Tuesday into Wednesday of next week with dry weather and light winds. Low moderate levels of PM will occur Sunday into Monday, but with high pressure building in next week with existing snow cover, we have to again be concerned with stronger inversions trapping fine particulates close to the ground.–McAuliffe