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AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
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Air Quality Forecast
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Air Quality Index (AQI)
Good Good
Health Message: None
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AQI - Pollutant Details
Particles (PM2.5)
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Forecast Discussion: FORECAST SUMMARY: Monday, September 22nd, 2014 through Monday, September 29th, 2014 Ozone: 8-hour concentrations are expected to be mostly Good, with Moderates possible towards the end of the week. PM-2.5: 24-hour Fine Particulate concentrations are also expected to be Good, with Moderates towards the end of the week. FORECAST DISCUSSION: Quiet weather conditions will be in place over the next week thanks to high pressure that will remain over the region. Mostly sunny skies can be expected with temperatures moderating each day. Highs Monday will be on the cool-side with readings in the upper 50s to lower 60; however, highs will reach into the 70s by Tuesday/Wednesday. Surface and upper level winds start the period northerly but change to the west, then south, by mid-week. Air quality levels are expected to remain Good for both ozone and fine particulate through Wednesday. By Thursday/Friday surface winds become weak, but with a southerly component. Plenty of sunshine remains in the forecast and surface temperatures will range in the lower 70s. Upper level temperatures will be cool enough where I expect ozone to remain Good; however, fine particulate may begin increasing with scattered Moderates, mostly in the southeast. EXTENDED FORECAST: Extended models do not change the forecast much for the weekend into early next week. High pressure will continue to dominate our weather with sunshine and highs in the lower to middle 70s. Upper level temperatures do increase into the weekend which could cause some Moderate ozone readings Saturday through Monday. Fine particulate will range from Good to Moderate. If weather conditions change and we feel pollution levels at the end of the forecast period will reach higher than Moderate, then this forecast will be updated on Friday. Forecast updated by Stephanie Hengesbach: Monday, September 22nd, 2014 Next forecast update: Monday, September 29th, 2014

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