Alert archive / Hawaii / Flash Flood Warnings

Flash Flood Warnings in Hawaii, 2020

25 flash flood warnings in 2020. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood warnings reaches back to 1986.

Flash Flood Warnings by county

Each county as a circle sized by its count in 2020. Tap one for its archive.

Flash Flood Warnings
25
Busiest month
March17 flash flood warnings
Busiest day
March 28, 20208 flash flood warnings

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Hawaii-Aleutian Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Jan 11, 7:35 PM HSTFlash Flood WarningHFOHawaii21 hr
Jan 12, 3:45 AM HSTFlash Flood WarningHFOKalawao5 hr
Jan 12, 4:26 PM HSTFlash Flood WarningHFOHawaii3 hr
Feb 6, 12:41 AM HSTFlash Flood WarningHFOKauai6 hr
Feb 6, 5:20 AM HSTFlash Flood WarningHFOKauai9 hr
Mar 2, 11:02 PM HSTFlash Flood WarningHFOKalawao3 hr
Mar 15, 1:17 PM HSTFlash Flood WarningHFOHonolulu3 hr
Mar 16, 11:49 AM HSTFlash Flood WarningHFOKauai6 hr
Mar 16, 9:44 PM HSTFlash Flood WarningHFOKauai18 hr
Mar 17, 10:08 AM HSTFlash Flood WarningHFOHonolulu3 hr
Mar 17, 11:26 PM HSTFlash Flood WarningHFOHawaii3 hr
Mar 18, 1:32 AM HSTFlash Flood WarningHFOHawaii5 hr
Mar 18, 3:58 PM HSTFlash Flood WarningHFOHonolulu2 hr
Mar 27, 11:49 PM HSTFlash Flood WarningHFOHonolulu3 hr
Mar 28, 12:28 AM HSTFlash Flood WarningHFOKauai3 hr
Mar 28, 1:00 AM HSTFlash Flood Warning Considerable damage threatHFOKauai3 hr
Mar 28, 2:23 AM HSTFlash Flood WarningHFOHonolulu3 hr
Mar 28, 2:57 AM HSTFlash Flood Warning Considerable damage threatHFOKauai3 hr
Mar 28, 3:28 AM HSTFlash Flood Warning EmergencyCatastrophic damage threatHFOKauai3 hr
Mar 28, 3:44 AM HSTFlash Flood WarningHFOHonolulu2 hr
Mar 28, 6:29 AM HSTFlash Flood Warning EmergencyCatastrophic damage threatHFOKauai6 hr
Mar 29, 10:20 AM HSTFlash Flood WarningHFOHonolulu102 min
Apr 13, 10:48 AM HSTFlash Flood WarningHFOHonolulu4 hr
Apr 13, 11:11 PM HSTFlash Flood WarningHFOKalawao3 hr
Nov 25, 8:51 AM HSTFlash Flood WarningHFOKauai8 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

  1. March 28, 20208flash flood warnings
  2. January 12, 20202flash flood warnings
  3. February 6, 20202flash flood warnings
  4. March 17, 20202flash flood warnings
  5. March 18, 20202flash flood warnings
  6. January 13, 20201flash flood warnings
  7. March 3, 20201flash flood warnings
  8. March 15, 20201flash flood warnings
  9. March 16, 20201flash flood warnings
  10. March 19, 20201flash flood warnings
  11. March 29, 20201flash flood warnings
  12. April 13, 20201flash flood warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20192021

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.