A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. 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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