An outbreak of severe storms will strike the northern High Plains and Canadian Prairies on Wednesday.
Some of the warmest weather of the year will continue across Alaska over the next few days, challenging more records.
Join us on Thursday for AccuWeather LIVE, we will discuss the debate of climate change and hurricane frequency and the top five things you need to know about summer weather.
Warmth is forecast to build over much of the eastern half of the nation by July, with Alaska of all places helping out.
A brief synopsis of the top five worst weather events of last summer.
A tornado touched down at Denver International Airport as a severe weather system moved through the area.
A dangerous outbreak of severe storms will strike the northern High Plains and Canadian Prairies on Wednesday.
A slow-moving tropical depression will continue to bring torrential rainfall and the risk of flooding to parts of southeastern Mexico, Belize and Guatemala into midweek.
Ahead of the thunderstorms, temperatures will soar to between 85 and 95 degrees, mostly 15 to 20 degrees above normal, on the hottest one to three days between north-central France and Poland.
As the storm was not expected to approach typhoon intensity, widespread damaging winds were not seen as a significant threat.
The storms could affect cities from St. Louis to Evansville, Ind., Louisville, Ky., Cincinnati and Dayton, Ohio to Huntington, W.Va.
New Brunswick, NJ (1835)
Great New Brunswick Tornado; 5 dead, 17-mile path through the center of town; in all, 145 buildings were damaged. This is the worst tornado catastrophe in New Jersey history to date.
Philadelphia, PA (1990)
Hail up to the size of marbles fell with wind gusts to 50 mph in the northeast part of the city.
Central Illinois (1964)
19th-20th) Hail as large as grapefruits battered more than 50 counties, causing crop and property damage totalling $9.2 million.