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Forecast Discussion: Current Conditions as of 1 PM on Monday: Foggy conditions across the region from this morning have since cleared out to allow for some sunshine to reach the surface here this afternoon. After cooler conditions this past weekend, temperatures are much warmer already today with readings already in the mid to upper 70s. Warm and moist air will blanket the region Tuesday and Wednesday before a cold front will begin to improve conditions for the remainder of the week on Thursday. *** Tuesday’s Forecast: Hazy, hot, and humid conditions will prevail on Tuesday thanks to light southwesterly flow bringing a surge of warm and moist air to the region. The southwesterly flow will also bring transport of an already modified air mass to add to the rising concentrations from Monday. Temperatures will climb into the mid to upper 80s, with a few 90 degree or higher readings possible, with dew point temperatures into the mid 60s. PM 2.5 levels will sit in the high end of the moderate range with a few hours of Code Orange level concentrations possible when the atmosphere is the most stable. Though winds will be light and moisture levels high, a developing afternoon breeze will at least allow for a little bit of mixing, keeping concentrations inside the moderate range. Skies will be mostly a mix of sun and clouds, with the amount of sunshine helping to determine Ozone concentrations for the day. Potential for early fog once again, hazy conditions for much of the day, and scattered clouds may limit Ozone levels to the high end of the good range. Areas that see a little more sun than clouds combined with the southwesterly transport may push maximum concentrations into the moderate range. *** Wednesday’s Forecast: On Wednesday, hazy, hot, and humid conditions will continue once again while we remain in the warm sector of a low pressure system that is currently causing the severe outbreak over the Midwest. This feature will be slowly pushing eastward, eventually bringing a threat for showers and thunderstorms to our region. Wednesday will see a slightly greater chance for precipitation than Tuesday, which may keep PM 2.5 as well as Ozone levels close to or just below that of Tuesday. Temperatures once again will climb well into the 80s to near 90 degrees with dew point temperatures remaining in the 60s. A cold front will eventually push eastward, likely arriving on Thursday. Unsettled weather will continue early Thursday until this front pushes through. This frontal passage will begin a transition to cooler temperatures and improved air quality for the remainder of the week and into the early part of the weekend. --- Roble |
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