Rare Southern U.S. Winter Storm; Dangerous Cold Weather For Much of the Eastern U.S.; Critical Fire Weather for Southern California

A rare winter storm impacting the Southern U.S. will move offshore Wednesday morning. Behind the storm, arctic air will continue encompassing the eastern two-thirds of the Nation with only a slow return to normal temperatures expected by the end of the week. Moderate to strong Santa Ana winds and low humidity will maintain Critical fire weather conditions in southern California into Thursday. Read More >

As an update to the story published earlier this week on dew point records, the following table includes sites from Sioux Falls’ area as well. The day that story was published (8/1), Aberdeen and Sisseton tied their records. Notice that both Huron and Sisseton set records this summer. By comparing recent dew point temperatures to the records, this summer’s uncomfortable conditions can be confirmed!

Site	Highest Recent Dew Point Temperature	Recent Date	Record Dew Point Temperature	Record Date	Period of Record
Aberdeen	82°F	8/1/2011, 7/17/2011	82°F	8/1/2011, 7/17/2011, 7/18/2001, 7/29/1999	1948-2011
Huron	81°F	7/18/2011, 7/17/2011	81°F	7/18/2011, 7/17/2011	1892-2011
Mitchell	80°F	7/18/2011, 7/16/2011	86°F	7/15/2002, 8/8/1975	1973-2011
Mobridge	80°F	7/18/2011, 7/17/2011	83°F	6/12/1987	1977-2011
Pierre	80°F	7/16/2011	84°F	7/1/2000	1948-2011
Sioux Falls	81°F	7/17/2011	82°F	7/10/2004	1942-2011
Sisseton	83°F	8/1/2011, 7/17/2011	83°F	8/1/2011, 7/17/2011	2001-2011
Watertown	80°F	7/19/2011, 7/18/2011, 7/17/2011	81°F	7/29/1999, 7/12/1995	1948-2011

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Rare Southern U.S. Winter Storm; Dangerous Cold Weather For Much of the Eastern U.S.; Critical Fire Weather for Southern California

Dew Point Records July and August 2011