Repetitive weather is in store for the coming days with humidity staying at bay for now. When the weather is nice and quiet, we are more prone to some negative health impacts. Clear skies are often created by areas of high pressure, which also result in sinking, poorly mixed air. This makes it difficult for clouds and showers to form but also allows pollutants to settle and ozone to increase. An *AIR QUALITY ALERT* has been issued for the Baton Rouge area from 12pm – 7pm Tuesday. Levels are low enough that only those with breathing sensitivities such as asthma would be affected by spending longer periods outside. You can reduce emissions by driving less and refueling very early or very late in the day.

THE FORECAST:

Today and Tonight: Like Monday, Tuesday will once again be warm with high temperatures gliding into the upper 80s and low 90s. Winds will; stay northerly and light. A few high clouds may be noted as a weak cold front approaches. Overnight will be mostly clear and seasonable with low temperatures in the mid 60s.

Up Next: Temperatures should stay elevated and hovering around 90 degrees for each of the next several afternoons. Although a dry warmth at first, humidity will be increasing by late in the week as winds come in from the Gulf. This will input enough moisture into the atmosphere for the possibility of afternoon showers and storms firing up over the weekend. A lot could still happen before then, so we will only carry low rain chances for now.

THE EXPLANATION:

High pressure is dominant, and will be camping out in Texas over the next 48 hours. A non-descript front will move in from the northwest, slightly increasing cloud cover into Wednesday. The high pressure will keep convective development at bay through much of the week even with that weak front crossing. Thanks to ample sunshine, high temperatures will likely end up a few degrees warmer than forecast model guidance and therefore, 90 degrees seems possible each of the next several afternoons. Additionally, since humidity will be slow to return, the more efficient warming properties of dry air support this idea of highs going above model guidance. A more southerly flow will return as we approach the weekend. By that time, the atmosphere may uncap just enough for this moisture to trigger an isolated afternoon shower or and thunderstorm. However, rain chances will remain quite low for the time of year.  

--Dr. Josh

The WBRZ Weather Team is here for you, on every platform. Your weather updates can be found on News 2, wbrz.com, and the WBRZ WX App. on Apple and Android devices. Follow WBRZ Weather on Facebook and Twitter for even more weather updates while you are on the go.