Oppressive heat continues for another day today. Dew points remain elevated as the subtropical heat dome builds in intensity. Southerly flow will pump air from the Gulf of Mexico northward (it will warm from the hot June sun as it does so), creating the perfect setup for potentially record-breaking heat. 

The record high for today is 97F. There is a chance we will break that this afternoon. However, the elevated dew points do make it more difficult for air to get as hot, number-wise (lots of complicated physics involved). 

That won’t prevent it from FEELING oppressively hot, tho. The combo of humidity, pressure, and temperature will produce a “wet bulb globe temperature” of around 86F, which, according to the National Weather Service, is dangerously high. This temperature *essentially* represents the minimum temperature the air can cool too under maximum latent cooling (aka via sweating). Anything above 85F is dangerously high and warrants cancellation of vigorous outdoor activities. 

Like last night, the air will not cool much overnight tonight. We will likely breaking a “record high minimum”. The good news is that this heat has no real end in sight! 🥴

Tl;dr - DANGEROUSLY HOT today. No vigorous outdoor activity, plz. High of 95F, but heat index 105+. Elevated dew points = sweating will not cool u down!

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