Flood Potential Outlook
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
546 FGMY70 PGUM 081942 ESFGUM GUZ001-MPZ001>003-090000- Hydrologic Outlook National Weather Service Tiyan GU 542 AM ChST Mon Sep 9 2024 ...HEAVY RAINFALL POSSIBLE THIS WEEK... ...FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH THURSDAY AFTERNOON... A developing tropical disturbance, known as JTWC`s Invest 95W, is currently located northwest of Weno, Chuuk. Forecast guidance continues to show a gradual organization as it heads towards the Marianas over the next few days. Model consensus indicates the possibility of locally heavy rainfall of 4 to 8 inches across the Marianas. Such rainfall could lead to localized flooding and the potential for flash flooding. Models have begun to converge on a track across the southern Marianas. Heavy rainfall possible for Guam and the Marianas with the passage of Invest 95W, and a robust south to southwest flow sets up in its wake by the latter half of the workweek. Localized flooding will be possible in low-lying and poor drainage areas, while flash flooding could also be possible in areas of heaviest rainfall. TIMING: Tonight through Thursday. RAINFALL: 4 to 8 inches of rainfall with locally higher amounts likely. Monitor local weather forecasts and conditions closely the next few days. Outdoor plans and events should have an alternate plan in place should heavy weather occur. When thunder roars, get indoors. If you can hear thunder, you are at risk of a lightning strike. Plan ahead and stay informed with the latest news from your local emergency management offices and the National Weather Service (weather.gov/gum). $$