fog

 I grew up near Letchworth and have been wanting to get back for a visit.  The forecast promised thunder storms around dawn with subsequent clearing just afterwards, but did indicate chances for occasional showers afterwards.  My thoughts immediately went to the Great Bend in Letchworth and that this was perfect conditions for fog to form in the deep gorge.   The Great Bend  area of Letchworth is where the the Genesee River takes a U-shaped turn and you can see a great expanse of the gorge.  This view really gives you a sense of why Letchworth is often called the Grand Canyon of the East.