National Weather Service United States Department of Commerce

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Weather History - April 21st

Local and Regional Events:

April 21st, 2007:

Heavy rains of 2 to 2.50 inches caused flash flooding in and around Watertown. Many streets and several roads outside of town were flooded. During the evening, a warm front extending across the region was the focus for heavy rain and severe weather across far northeast South Dakota. Hail up to the size of quarters, along with heavy rains of over 2 inches, caused some flooding, mainly in Codington and Hamlin counties.