National Weather Service United States Department of Commerce

Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

  After two consecutive summers of not reaching 100 degrees at Pierre, the temperature finally reached and surpassed the century mark on July 17th.  At 153 pm CDT on July 17th, the temperature at Pierre topped out at 106 degrees.  It was on September 4th, 2007 (nearly 3 years) when Pierre last reached the century mark when the temperature topped out at 101 degrees. Mobridge has also reached the 100 degree mark this summer which occurred on June 30th.

Recall that last year, Pierre failed to reach 100 degrees in back to back summers (2008 and 2009).  This had never occurred before at Pierre since records have been kept (records in Pierre date back to 1933).  In an average summer, Pierre would normally record a high temperature at or above 100 degrees about 9 times.  In addition, since 1933, there has only been one other year (1993) when temperatures have failed to reach 100 degrees.  Thus, failing to reach this temperature milestone in two consecutive summers was quite a rare event.  It has also been over three years since Aberdeen, Watertown, and Wheaton have reached the 100 degree mark. Listed below are the dates when the temperatures last reached 100 degrees at these three locations.
·         Aberdeen (102F):  July 7, 2007 
·         Watertown (100F): July 7, 2007  
·         Wheaton (100F): - July 8, 2007