Although deep humidity and a corresponding increase in downpours and thunder will return this weekend after a respite for most Thursday into Friday, a larger, more meaningful pattern change at the jet stream level lay ahead for the first half of August. Matt has full details in today’s Insights video.
In the past 24 hours, some areas, particularly in the mountains of New Hampshire and Maine, picked up over an inch of rain, prompting flash flood warnings. However, most of us didn’t see that much rain. Today, we get a bit of a break with a weak cold front that has decreased the atmospheric moisture.
The big story is the significant change in jet stream winds. The jet stream, a fast river of air high in the sky, steers storm systems and separates cool air to the north from warm air to the south. This weekend, as potential tropical development near Florida takes shape, we have a brief open window of wind at the jet stream level along the eastern seaboard. However, this window closes quickly with a return to the westerlies, protecting us from tropical systems for the first part of August. This pattern prevents prolonged heat waves, so while we will see warm temperatures, we’re not expecting long stretches in the 90s.
For the latest 14-day forecast and to track storms, download our app from the Apple App Store or Google Play by searching for “Noyes’ 1DegreeOutside Weather.”
