Alert archive / Guam / Flash Flood Warnings

Flash Flood Warnings in Guam, 2023

20 flash flood warnings in 2023. 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
20
Busiest month
January7 flash flood warnings
Busiest day
January 8, 20232 flash flood warnings

Over time

By month

The alerts

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

IssuedProductOfficeCountiesLasted
Jan 7, 8:45 PM CSTFlash Flood WarningGUM60 min
Jan 7, 9:26 PM CSTFlash Flood Warning Considerable damage threatGUM64 min
Jan 9, 12:12 AM CSTFlash Flood WarningGUM63 min
Jan 9, 1:01 AM CSTFlash Flood WarningGUM42 min
Jan 10, 7:21 PM CSTFlash Flood WarningGUM54 min
Jan 10, 8:15 PM CSTFlash Flood WarningGUM60 min
Jan 13, 9:52 PM CSTFlash Flood WarningGUM3 hr
May 24, 12:01 AM CDTFlash Flood Warning Considerable damage threatGUM17 hr
May 25, 6:44 AM CDTFlash Flood WarningGUM3 hr
May 29, 7:16 PM CDTFlash Flood WarningGUM3 hr
May 29, 8:12 PM CDTFlash Flood WarningGUM3 hr
Aug 7, 8:58 PM CDTFlash Flood WarningGUM76 min
Aug 8, 1:41 AM CDTFlash Flood Warning Considerable damage threatGUM36 min
Aug 12, 3:34 AM CDTFlash Flood WarningGUM56 min
Aug 31, 2:11 AM CDTFlash Flood WarningGUM27 min
Aug 31, 2:40 AM CDTFlash Flood WarningGUM3 hr
Sep 7, 10:17 PM CDTFlash Flood WarningGUM58 min
Oct 4, 1:02 PM CDTFlash Flood WarningGUM58 min
Oct 9, 10:16 PM CDTFlash Flood WarningGUM9 hr
Oct 14, 6:21 AM CDTFlash Flood WarningGUM3 hr

The busiest days

Days with the most alerts issued, by UTC date.

  1. January 8, 20232flash flood warnings
  2. January 9, 20232flash flood warnings
  3. January 11, 20232flash flood warnings
  4. May 30, 20232flash flood warnings
  5. August 8, 20232flash flood warnings
  6. August 31, 20232flash flood warnings
  7. January 14, 20231flash flood warnings
  8. May 24, 20231flash flood warnings
  9. May 25, 20231flash flood warnings
  10. August 12, 20231flash flood warnings
  11. September 8, 20231flash flood warnings
  12. October 4, 20231flash flood warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20222024

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.