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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 Index (AQI)
Moderate Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
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Particles (PM2.5)
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Forecast Discussion: FORECAST SUMMARY: Monday, November 17th, 2014 through Monday, November 24th, 2014 PM-2.5: 24-hour Fine Particulate concentrations are expected to be Good through Thursday; with Good to Moderate readings the rest of the forecast period. FORECAST DISCUSSION: Heavy Lake Effect snows can be expected early this week in the wake of a Monday cold frontal passage. Strong northwest to west winds will keep the air well-mixed; therefore, fine particulate will remain Good through Tuesday. Winds weaken for a short time late Tuesday/early Wednesday ahead of a system which will again reinforce snow showers Wednesday. Surface winds will become stronger again with a northwest/west component later Wednesday; lasting into Thursday. Fine particulate will remain Good. High pressure slides in for the end of the week finally ending snow across most of the state. Winds will weaken starting late Thursday and should remain rather weak through early Saturday. During this time fine particulate could reach the Moderate range. EXTENDED FORECAST: Later Saturday the high pressure area moves east changing the surface winds to the southwest. Speeds will increase and the chance for precipitation moves in by Sunday. Increased moisture and southwest winds could allow fine particulate to stay Moderate; however, extended computer models show a decent chance for rain which could hamper an increase. Regardless how this system tracks and the amount of precipitation we end up receiving, fine particulate will not reach higher than middle Moderate through early next week… Forecast updated by Stephanie Hengesbach: Monday, November 17th, 2014 Next forecast update: Monday, November 24th, 2014

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