FPMY70 PGUM 202226 NOWGUM Short Term Forecast National Weather Service Tiyan GU 821 AM ChST Sun Jul 21 2024 GUZ001-202315- Guam- 821 AM ChST Sun Jul 21 2024 .NOW... At 820 AM ChST, satellite imagery was indicating a line of showers pushing into northern Guam. The showers will push southwest over the island, bringing brief heavy downpours and gusty winds to 25 mph. $$ SLAGLE