Alert archive / Guam / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Guam, 2020

5 severe thunderstorm 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 severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings
5
Busiest month
November2 severe thunderstorm warnings
Busiest day
November 23, 20202 severe thunderstorm 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
Jun 30, 9:34 AM CDTSevere Thunderstorm WarningGUM56 min
Sep 13, 5:29 AM CDTSevere Thunderstorm WarningGUM61 min
Oct 29, 3:31 PM CDTSevere Thunderstorm WarningGUM29 min
Nov 22, 8:06 PM CSTSevere Thunderstorm WarningGUM39 min
Nov 22, 8:50 PM CSTSevere Thunderstorm WarningGUM55 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. November 23, 20202severe thunderstorm warnings
  2. June 30, 20201severe thunderstorm warnings
  3. September 13, 20201severe thunderstorm warnings
  4. October 29, 20201severe thunderstorm 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.