BLOG: Great Wednesday; Hot And Humid Weekend Ahead

What a marvelous day! The dewpoints are still in the mid 50s, keeping the humidity very low. At the same time, there's a lot of sunshine and temperatures are only going up to near 90 degrees. Even though it's still very warm, this is going to be our most comfortable day of the week.

A new round of heat and higher dewpoints/humidity is coming our way. 100 degree readings are building through Texas, Oklahoma and Missouri. This heat is starting to expand eastward and will move our way late in the week. Highs around here will get into the mid 90s tomorrow, while the dewpoints step up to the 60s. Then, highs will be in the upper 90s Friday with dewpoints close to 70 again. That will bring the heat index back into the low 100s. This upcoming round of heat and mugginess will not be quite as extreme nor as long lived as the last one, but it will stick around through the weekend.

A new front will move our way. There could be a pop up thunderstorm ahead of it Friday and Saturday, then scattered showers and thunderstorms are possible Sunday when it crosses through Maryland. We could still even have a thunderstorm pop up Monday with the lingering moisture after it leaves.

Interesting sidenote: Last year we talked a lot about 90 degree plus days around Baltimore, since we set a new record with 59 days at or above 90 degrees. The old record was 54 days back in 1988. Well, the average for Baltimore is only 30 days with 12 of them falling in July. We are already at that average for the entire year. After a cool spring, we are now at 29 days with highs of 90 degrees or higher (and that does not include today). In July alone, we have now hit 19 days (again, not including today) with a few more to come before the end of the month.