we re clocking in the surface here over 150 degrees. relief is coming, but so are storms, causing more than 1400 flights to be canceled this weekend president biden s covid symptoms are improving significantly according to his doctor, and new information about the race to create a vaccine targeted at the omicron subvariants by this fall pope francis has landed in north america, why he s apologizing to the people of canada today. gas prices are falling. now 65 cents less than the peak one last fight, the veterans who never gave up the effort to honor their fallen brothers a new memorial open opening this week. and the stunning northern lights over the continental u.s. where you can see this amazing light show this is nbc nightly news with kate snow. good evening from coast to coast, almost all of us are dealing with it. the brutal heatwave that s lasted for days today, some 90 million americans were under severe heat alerts, with multiple states hitting rec