Tuesday, 21 May 2013

This DataStreme Atmosphere Daily Summary contains Historical Weather Events for this date. The latest weather information on the DataStreme Atmosphere homepage will continue to be updated. We are suggesting that persons looking for an alternative national weather summary might try:

http://www.weather.com/newscenter/nationalforecast/index.html (The Weather Channel)

DataStreme Atmosphere Daily Summaries and Investigation files will return with the Fall 2013 DataStreme Atmosphere course during Preview Week on Monday, 2 September 2013.

HISTORICAL WEATHER EVENTS - 21 May

From the files of the Aviation Weather Center, Kansas City, MO and Intellicast

• ...1860...A swarm of tornadoes occurred in the Ohio Valley. Tornadoes struck the cities of Louisville, KY, Cincinnati, OH, Chillicothe, OH and Marietta, OH causing a million dollars damage. Four people were killed at Cincinnati. (David Ludlum) (Intellicast)
• ...1895...The temperature at Norwalk, OH dipped to 19 degrees to set a state record for the month of May. (The Weather Channel)
• ...1896...The mercury soared to 124 degrees at Salton, CA to establish an U.S. record for May. (Sandra and TI Richard Sanders - 1987)
• ...1980...The temperature at Williston, ND reached 102 degrees to set a record for May, and the next day the mercury hit 106 degrees. (The Weather Channel)
• ...1987...Severe thunderstorms, developing along a sharp cold front crossing the central U.S., produced 60 mph winds and golf ball size hail at Sedalia, MO, and drenched Hagerstown, IN with six inches of rain in one hour. Temperatures soared into the 90s ahead of the cold front. Paducah, KY hit 94 degrees for the second day in a row. Light snow blanketed Montana, with three inches reported at Butte. (The National Weather Summary) (Storm Data)
• ...1988...Severe thunderstorms swept across southern Louisiana during the morning hours spawning six tornadoes, and producing wind gusts to 88 mph at Jennings. Thunderstorms also produced five inches of rain in two hours at Lake Charles, causing local flooding. (The National Weather Summary) (Storm Data)
• ...1989...Thunderstorms moving southeastward across the Central Plains Region into Oklahoma and Arkansas produced severe weather through the day and night. Thunderstorms spawned just four tornadoes, but there were 243 reports of large hail and damaging winds. Baseball size hail was reported at Augusta, KS, and thunderstorm winds gusted to 98 mph at Johnson, KS. (The National Weather Summary) (Storm Data)
• ...1990...Thunderstorms produced severe weather across the southeastern U.S. for the second day in a row. Severe thunderstorms spawned five tornadoes, including one that injured a person at Richmond, KY. There were eighty-seven reports of large hail or damaging winds, with hail three inches in diameter reported at Austin, TX. Thunderstorms produced up to five inches of rain in Macon County, GA, and heavy rains left nearly eight feet of water over roads near Stepstone, KY. (The National Weather Summary) (Storm Data)