1930: A 9 day, nearly continuous tornado sequence contained two outbreaks from May 1 through May 9. On May 6, an estimated F4 tornado struck the town of Frost, Texas, killing 41 people. Each day’s activity focused from southern Texas northward through the Great Plains and northeastward into Iowa and Wisconsin. The 9-day stretch saw 67 estimated F2 or stronger tornadoes, 13 of which were violent. Click HERE for more information from the Storm Prediction Center.
1933: An estimated F4 tornado cut a 35-mile path from near Brent into Shelby County, Alabama. The town of Helena, AL was especially hard hit, as 14 people died. The tornado roared through Helena at 2:30 am.
1964: A two-state, F3 tornado moved northeast from 4 miles WNW of Herreid, South Dakota to the south of Streeter, North Dakota, a distance of about 55 miles. Blacktop was ripped for 400 yards on Highway 10, five miles north of Herreid, South Dakota. Two barns were destroyed northeast of Hague, North Dakota, with a dozen cattle killed on one farm. The F3 damage occurred at one farm about midway between Wishek and Hogue. Other barns were destroyed south of Burnstad.
1987: Unseasonably hot weather prevailed in the western U.S. A dozen cities in California reported record high temperatures for the date. Afternoon highs of 93 degrees at San Francisco, 98 degrees at San Jose, 100 degrees at Sacramento, and 101 degrees at Redding were the warmest on record for so early in the season. The high of 94 degrees at Medford, Oregon was also the warmest on record for so early in the season.
1995: A supercell thunderstorms brought torrential rains and large hail up to four inches in diameter to Fort Worth, Texas. This storm also struck a local outdoor festival known as the Fort Worth Mayfest. At the time the storm was the costliest hailstorm in the history of the US, causing more than $2 billion in damage.
— NWS Aberdeen (@NWSAberdeen) May 5, 2017