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Hazards

Analysis

Rankings

Reference

August 4

21 entries from the federal record fall on August 4, across every year it covers.

Tropical cyclones

Storms at their strongest near the U.S. on this date.

  1. 2020Isaias, category 1 near Brunswick County, NC

Tornadoes

Tornadoes rated F3/EF3 or stronger, or that killed, on this date.

  1. 1957F3, 12 mile path Maricopa, AZ
  2. 1958F1, 2 mile path, 1 killed Redwood, MN

Deadly and costly storms

  1. 2007Excessive Heat, 8 deaths Audrain; Boone; Callaway; Cole
  2. 2020Tropical Storm, 7 deaths, $18.9 million Bronx; Kings; Nassau; New York
  3. 2024Excessive Heat, 7 deaths Clark; Lincoln
  4. 2001Heat, 5 deaths Anoka; Benton; Blue Earth; Brown
  5. 1996Thunderstorm Wind, 3 deaths Franklin

Earthquakes

Magnitude 5 or more in the lower 48 and Hawaii, 6.5 or more in Alaska, on this date (local time).

  1. 1927M5.3, near Santa Monica, California Los Angeles County, CA
  2. 1959M5.2, near Dixon Lane-Meadow Creek, CA Mono County, CA
  3. 1985M5.6, near Huron, California Fresno County, CA

Wildfires

Fires of 50,000 acres or more that began on this date.

  1. 1999Dun Glenn Complex (Poker Brown), 236,353 acres NV
  2. 1999New Pass Complex (New Pass-Antelope), 172,104 acres NV
  3. 1999Sombrero Fire, 128,047 acres NV
  4. 2021Schneider Springs Fire, 114,703 acres WA
  5. 1999Jungo Complex, 77,016 acres NV
  6. 2021Whitmore Fire, 59,931 acres WA
  7. 1987Deadwood Fire, 57,030 acres ID
  8. 1999Frenchie Fire, 55,238 acres NV
  9. 2017Powerline Fire, 54,349 acres ID
  10. 2017Mammoth Cave Fire, 50,410 acres ID