National Weather Service United States Department of Commerce

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Daily Climate Graphic

Climate Data for June 17
  Normal High* Normal Low* Record High Record Low Record Precipitation
Baton Rouge (since 1892) 91 72 100 (1918) 54 (1917) 4.01 (1997)
Biloxi, MS (since 1893) 88 74 100 (1918) 60 (1899) 4.06 (1948)
McComb, MS (since 1948) 90 69 97 (2009) 58 (1989) 2.97 (1997)
New Orleans - City (since 1893) 93 75 98 (2004) 57 (1917) 3.54 (1895)
New Orleans Intl Airport - MSY (since 1871) 90 75 96 (2016) 62 (1989) 1.79 (1997)
Slidell, LA (since 1956) 89 73 97 (2005) 62 (2020) 2.78 (1966)
*30 Year Climate Normals from 1991 to 2020
On this day in 1997: Heavy rainfall of 4 to 5 inches fell across Baton Rouge area, resulting in flash flooding with numerous streets and highways impassible. Ascension Parish had over 44 streets impassible with over 1 foot of water after 7 to 9 inches of rain fell in a couple of hours.