Alert archive / Guam / Tropical Storm Watches

Tropical Storm Watches in Guam, 2009

5 tropical storm watches in 2009. 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 tropical storm watches reaches back to 2005.

Tropical Storm Watches
5
Busiest month
September3 tropical storm watches
Busiest day
September 12, 20091 tropical storm watches

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
Sep 12, 1:26 AM CDTTropical Storm WatchGUM24 hr
Sep 27, 6:52 AM CDTTropical Storm WatchGUM50 hr
Sep 30, 11:15 AM CDTTropical Storm WatchGUM38 hr
Oct 14, 1:40 PM CDTTropical Storm WatchGUM9 hr
Oct 26, 1:00 AM CDTTropical Storm WatchGUM24 hr

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordThe radar archive20082010

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. Warning verification from the Mesonet's Cow. Rebuilt daily.