Mostly clear skies, light winds and high humidity levels are leading to the development of areas of fog once again this morning. With less cloud cover, fog may be more widespread and thicker than it has been on recent mornings.
Otherwise today is shaping up to be a bit warmer and more humid as we gradually get into a heat wave pattern by the end of the week: highs today should be close to or even above 90° for a change....and the warming trend will become even more noticeable by tonight and tomorrow...as nights stay above 70° and afternoon highs climb through the 90s.
Another consideration for today is the threat of strong to even severe T'storms....especially this afternoon and evening. A weak weather system over Kansas this morning will be moving slowly eastward and will be approaching during the warmest part of the afternoon and evening. SPC has parts of the area (especially MO and IL) with a slight risk of severe. Highs winds and hail will be greatest threats with any severe storms.
The medium range will feature a strong upper high over the southeastern U.S. This will bring a hot, humid and mostly rain-free pattern to our area from about a week....with the hottest weather from about Thursday thru next Monday. This looks to be the longest period of excessive heat and humidity we've had so far this summer...and those working or practicing sports outside should take precautions. Afternoon heat indices will likely exceed 100 during this period.
Longer-range models show a moderating trend toward the middle of next week as an upper trough approaches from the west.
8/19 4:00 am ba