An atmospheric river will bring heavy rainfall to lower elevations of California this week, and heavy snow to the Sierra Nevada mountains. Flash flooding, some of which may be locally considerable, will be a concern on the western foothills of the Sierra Nevada mountains through Tuesday. Landslides, rockfalls and mudslides are possible in the Southern California mountains. Read More >
Tiyan, GU
Weather Forecast Office
| Website or Document (click to download) | Date Added |
| Guam Rain Summary (2020) | September 2, 2020 |
| Typhoons Passing within 75nm of Guam (1945-2019) | August 11, 2020 |
| Major Typhoons Passing within 75nm of Guam (1945-2019) | August 11, 2020 |
| Severe Tropical Storms gte 45kt passing within 75nm of Guam (1945-2019) | August 11, 2020 |
| Major Typhoon Tracks 1945-2019 (Graphical) | August 11, 2020 |
| Typhoon Tracks 1945-2019 (Graphical) | August 11, 2020 |
| NTHMP Tsunami Information Guide | April 18, 2019 |
| Typhoon Tracking Chart (landscape - printer friendly) | May 27, 2017 |
| Historical Tropical Cyclones Affecting Guam (1671-1990) | June 17, 2015 |
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Tiyan, GU
3232 Hueneme Rd
Barrigada, GU 96913
(671) 472-0900
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