August 12
28 entries from the federal record fall on August 12, across every year it covers.
Tropical cyclones
Storms at their strongest near the U.S. on this date.
- 1939Unnamed storm, category 1 near St. Lucie County, FL
- 1955Connie, category 2 near Carteret County, NC
- 1968Dolly, tropical storm near Dare County, NC
- 2004Bonnie, tropical storm near Okaloosa County, FL
Tornadoes
Tornadoes rated F3/EF3 or stronger, or that killed, on this date.
- 1974F4, 5 mile path Delaware, IA
- 1974F4, 2 mile path Iowa, IA
- 2010EF3, 5 mile path, 1 killed Burke, ND; Ward, ND
- 1956F3, 5.1 mile path Poweshiek, IA
- 1956F3, 23.4 mile path Marshall, IN; Kosciusko, IN
- 1985F2, 22 mile path, 2 killed Monroe, WI; Juneau, WI
- 2005F2, 1.5 mile path, 2 killed Campbell, WY
- 1976F1, 0.3 mile path, 1 killed Pinellas, FL
Deadly and costly storms
Earthquakes
Magnitude 5 or more in the lower 48 and Hawaii, 6.5 or more in Alaska, on this date (local time).
- 1998M5.1, near Ridgemark, California San Benito County, CA
Wildfires
Fires of 50,000 acres or more that began on this date.
- 2012Rush Fire, 307,085 acres CA, NV
- 2004Hodzana River Fire, 187,702 acres AK
- 2015Canyon Creek Complex, 109,753 acres OR
- 2017Oak Fire, 95,627 acres CA
- 2015Tepee Springs Fire, 94,816 acres ID
- 2001Spaulding Fire, 76,288 acres NV
- 2001Buffalo Complex (Hot Lake), 74,109 acres NV
- 2015County Line 2 Fire, 68,167 acres OR
- 2015Bear Creek Fire, 60,768 acres MT
- 2001Rex Creek Complex (Rex Creek), 54,461 acres WA
- 2017Norse Peak Fire, 50,992 acres WA