ROANOKE, Va. – Oftentimes when it stays especially hot and humid in the summer, we could say "Go to Alaska, if you want to cool off." That's not necessarily the case this time around.
A heat wave, for us, is three straight days or more of 90° heat. In places like Alaska, it's a prolonged period of abnormally warm weather (like this weekend).
The highest temperature recorded in Anchorage was 85° set about 50 years ago. That is until July 4th, when Anchorage hit 90°. Some records show that Ft. Yukon actually hit 100° in June of 1915. (This is a correction to something I previously reported on Virginia Today.) The National Weather Service is forecasting high temperatures in the mid to upper 80s Friday afternoon.
The cause? A large and strong area of high pressure sets up over Alaska, promoting longer-lasting heat for the state.
As that happens, the jet stream on this end of North America drops south. That will happen late Sunday and Monday.
As a result, Monday's temperatures retreat into the 70s and low 80s with showers and storms perhaps more numerous than this weekend.