Active Weather Alerts
Flood Watch
Issued: 3:21 AM Jun. 27, 2025 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE SUNDAY NIGHT... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Guam and Rota. * WHEN...Through late Sunday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - A monsoon trough looks to bring more rounds of showers and thunderstorms are through the weekend. Additional rainfall amounts of 4 to 8 inches are possible, especially over Guam. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. &&
Special Weather Statement
Issued: 7:25 PM Jun. 26, 2025 – National Weather Service
...DIMINISHING THREAT OF DEVELOPING TROPICAL CYCLONE TO AFFECT MARIANAS... The disorganized tropical disturbance, Invest 97W, is centered well west of Saipan near 16N140E. Recent radar and satellite imagery shows a much quieter pattern across the Marianas with heavy showers having pushed off well to the west of the islands after dumping 2 to 5 inches of rain over much of the region the past 36 hours. While latest model guidance still favors gradual development of 97W in the coming days, such trends will be slow and increasingly further away from the Marianas. Thus far, the dominant concern has been the rainfall threat for the next several days. The departure of 97W from the Marianas does lessen that concern, though the Marianas should still anticipate heavier showers and thunderstorms moving over the islands from time to time. Concerning the threat for wind hazards, that concern is much reduced with 97W pulling away from the local area. However, folks planning outdoor activities or out on the waters should keep up-to-date with current weather conditions and forecasts. The NWS will continue monitoring for the potential of a wet and gusty southwest monsoon pattern that could develop over the islands next week. This will be the final Special Weather Statement issued regarding Invest 97W. Keep up-to-date with the latest forecasts and discussions by visiting weather.gov/gum/
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