HOT

Get ready for the hottest weather of the summer this weekend!

Temperatures at 11:30 a.m. (Weather Central)

As I write, it is 11:30 on Saturday morning, and temperatures have already soared into the upper 80s in spots, and they won't look back. We can expect high temperatures to reach the 90s here in New England today, but I think Sunday will be the hottest day of the summer so far. Heres a look at 5 p.m. temperatures tomorrow from the NAM.

NAM forecasted temperatures at 5 p.m. (Tropical Tidbits)

Now what is the reason it is so hot right now? The answer lies in the jet stream, which has shifted far to the north.

GFS 500 mb Geopotential Height, Cyclonic Vorticity, and Wind (Tropical Tidbits)

In the above map, you can see the are area of red, which shows where in the U.S. the jet stream is dipping towards. Right now, it has only dropped down to areas near Southern Canada, causing the impressive heat in our area. What is the jet stream? It is an area of westerly winds in the tropopause that encircles Earth. The jet stream aids meteorologists in forecasting, because its path has important implications on the weather we receive. Often, when we get intense wintertime polar vortices, it is due to a dip in the jet stream into North America. And when the jet stream is at a more northerly latitude, we can expect warmer weather.

It'll be very hot this weekend, so be sure to hydrate sufficiently and stay in the shade when possible. Enjoy the weekend!