As we have seen multiple times this summer, during the middle of this week thunderstorms will fire on the northern rim of heat from the northern Plains to northern New England.
Wednesday, the area at risk from the storms will span North Dakota eastward to northern upstate New York and Maine.
While storms in the northern Plains are not expected to be severe, cities in the path of the severe storms include Montreal, Quebec, Plattsburgh, N.Y., Burlington, Vt., and Caribou, Maine.
The greatest risks from the storms will be localized damaging wind gusts and frequent lightning strikes.
South of this area, within the vast area of heat and high humidity, very widely separated thunderstorms can occur through the balance of the week. However, most of these storms will occur during the late afternoon and evening hours with blinding downpours and a few lightning strikes, being their most significant characteristics.
Late in the week, a shift in steering winds high in the atmosphere will allow a broad zone of thunderstorms to sweep southeastward across the Great Lakes into more of New England and the mid-Atlantic. The late-week storms will not only break the heat wave but can also bring the risk of severe weather to more locations than the midweek storms.
Dry conditions and above-normal temperatures are expected for Super Bowl Sunday in Santa Clara, California.
Warmer air will build from California to Washington on Monday and Tuesday raising temperatures to near-record levels.
The new week will bring more opportunities for snow to create slick travel in the northeastern United States, starting with a winter storm set to sideswipe New England on Monday.
Cold and snow showers are in store for the New Hampshire primary on Tuesday but should not significantly impact voter turnout.
As the Denver Broncos and Carolina Panthers clash for the Super Bowl 50 title in Santa Clara, California, on Sunday, they will do so in one of the most energy-efficient stadiums in the world.
A magnitude-6.4 earthquake shook southern Taiwan shortly before 4 a.m. local time on Saturday, according to the U.S. Geological Survey.
Johnstown, PA (1986)
Lightning during a snowstorm set fire to a church and caused damage.
Boston, MA (1861)
46 degrees on this date, -14 degrees on the 8th, and 60 degrees on the 11th.
Lake Placid, NY (1980)
Still waiting for snow for the 1980 Win- ter Olympics.