August 15
19 entries from the federal record fall on August 15, across every year it covers.
Tropical cyclones
Storms at their strongest near the U.S. on this date.
- 1895Unnamed storm, tropical storm near Plaquemines Parish, LA
- 1938Unnamed storm, category 1 near Cameron Parish, LA
- 1985Danny, category 1 near Iberia Parish, LA
Tornadoes
Tornadoes rated F3/EF3 or stronger, or that killed, on this date.
- 1974F3, 2 mile path Logan, CO
- 1978F3, 6.4 mile path Mercer, IL; Rock Island, IL
- 1986F2, 0.2 mile path, 1 killed St. Lawrence, NY
- 1987F2, 1 mile path, 1 killed Otter Tail, MN
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).
- 1945M5.8, near Westmorland, CA Imperial County, CA
- 2018M6.5, near Adak, Alaska Aleutians West Census Area, AK
Wildfires
Fires of 50,000 acres or more that began on this date.
- 2021Caldor Fire, 226,739 acres CA
- 2006Crystal Fire, 218,571 acres ID
- 2006Charleston Fire, 153,976 acres NV
- 1996Fifty-Eight Fire, 94,832 acres CA
- 2023Kelly Fire, 90,208 acres CA, OR
- 2000Toston-Maudlow Fire, 80,319 acres MT
- 1988Hellroaring Fire, 77,539 acres MT, WY
- 2015Carpenter Rd. Fire, 62,449 acres WA
- 2018Watson Creek Fire, 62,165 acres OR