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ALT Weather update graphic titled "Daily Weather: In-Fa Tracking Towards Northern CNMI" from the National Weather Service Tiyan, GU, dated Wednesday, October 28, 2026, 9:00 AM ChST. The top banner highlights tropical weather concerns, noting Typhoon In-Fa moving west-northwest at 8 MPH, with hazardous seas and surf expected for Guam, Rota, Tinian, and Saipan over the weekend. Regionally, Marianas anticipates isolated to scattered showers, isolated afternoon thunderstorms, and combined seas of 5 to 6 feet. Eastern Micronesia expects isolated showers with winds 5 to 15 knots and swells up to 5 feet. Western Micronesia forecasts scattered showers for Palau and Chuuk, and isolated thunderstorms for Yap with winds 5 to 10 knots. An embedded satellite imagery map illustrates Typhoon In-Fa's circulation and general storm direction moving northwest toward Pagan, Saipan, and Guam.

ALT Weather graphic titled "Typhoon In-Fa: 3 Day Forecast Cone" from National Weather Service Tiyan, GU, dated Wednesday, October 28, 2026, 9:00 AM ChST. Subtitle notes that JTWC's official forecast takes In-Fa through the far northern Marianas. Current information lists Typhoon In-Fa at Advisory 18 (7 AM ChST), center location 14.8 N 160.3 E, maximum sustained winds 130 mph, moving WNW at 8 mph. The forecast cone map shows the storm tracking west-northwest through 4 AM Thu, 4 PM Thu, 4 AM Fri, 4 PM Fri, and 4 AM Sat. A top note clarifies the cone contains the probable path of the storm center, not its full size, and hazardous conditions can occur outside the cone. Legend defines storm intensity levels: D (<39 mph), S (39-73 mph), T (74-150 mph), and ! (>150 mph).

ALT For more information, please visit www.weather.gov/gum

ALT NWS graphic issued Sunday, October 18, 2026, at 4:50 PM ChST stating "TY Champi (29W): ALL TYPHOON WARNINGS CANCELLED." Flooding concerns continue through tonight for Guam and Rota, with hazardous winds and waters for all of the Marianas. A satellite loop on the left shows the storm moving west away from the islands. Key Points state Typhoon Warning CANCELLED for Guam and Rota, though winds, seas, and surf remain dangerous. Impacts include possible flooding through tonight for Guam (2 to 4 inches) and Rota (1 to 3 inches); strong winds of 25 to 35 MPH with gusts to 45 MPH for all islands; combined seas of 12 to 16 FT for Guam/Rota and 10 to 14 FT for Tinian/Saipan; and high surf with dangerous rip currents on east, south, and west facing reefs for Guam/Rota, and east and south facing reefs for Tinian/Saipan. Suggested Action: Wait for an "ALL CLEAR" from local authorities.

ALT Typhoon Champi (29W): Rapidly Intensified to Category 4 (140 MPH) Valid as of 1:12 AM ChST on Sunday, October 18, 2026 Champi forecast to pass barely south of Guam with winds of 150 mph.

ALT Weather graphic titled "Champi Now a DANGEROUS Category 4 Typhoon Approaching Guam," issued 8:20 PM ChST, Sat, 17 Oct 2026. Warning of possible intensification to Super Typhoon (~150 MPH) during closest approach early Sunday morning. Left panel shows color-coded alerts: Typhoon Warning for Guam - Rota; Tropical Storm Warning for Saipan - Tinian; Flash Flood Warning for Guam; Flood Watch, Coastal Flood Warning, and High Surf Warning for Guam - Rota - Saipan - Tinian. NWS Public Advisory #12 details Tropical Storm Champi (29W) located at 12.6N 146.7E with max winds of 130 MPH moving West at 15 MPH, located ~140 miles ESE of Guam, ~145 miles SE of Rota, ~180 miles SSE of Tinian, and ~185 miles SSE of Saipan. Main map displays storm cone moving northwest toward Guam and the Mariana Islands through Tuesday. Logos for NOAA and the National Weather Service appear alongside social media contact info @NWSGuam and www.weather.gov/gum.

ALT TS Champi (29W): Intensifying and Continuing to Move West Towards Marianas Valid as of 4:21 AM ChST on Saturday, October 17, 2026

ALT Typhoon Watch In Effect for Guam, Rota, Tinian, and Saipan Valid as of 1:00 AM ChST on Friday, October 16, 2026 …TYPHOON WATCH IN EFFECT FOR THE MARIANAS… 29W has been upgraded from a depression to Tropical Storm Champi, with maximum sustained winds of 40 MPH.

ALT NWS Public Advisory graphic issued Saturday, October 3, 2026, at 9:45 AM ChST, titled "TY Choi-wan (26W) Steadily Moving North Along Far Northern Marianas." A Typhoon Warning is active for Alamagan, Pagan, and Agrihan; a Tropical Storm Warning remains for Saipan and Tinian; and a Gale Warning and Wind Advisory cover Guam and Rota. Advisory #12 positions Typhoon Choi-wan at 18.4N 144.9E with maximum sustained winds of 85 mph, moving north at 6 mph. The storm is 55 miles WSW of Agrihan, 60 miles WNW of Pagan, 80 miles NW of Alamagan, 150 miles NNW of Anatahan, 235 miles NNW of Saipan, 240 miles N of Tinian, 295 miles N of Rota, and 340 miles N of Guam. A satellite map shows the storm's red icon and north-pointing arrow west of the islands, with blue arrows indicating a southern Monsoon Surge generating 25–35 knot winds with gusts to 45 knots over Guam and Rota. NOAA and US National Weather Service Guam logos are included.

ALT National Hurricane Center and Joint Typhoon Warning Center forecast track map for Typhoon Choi-Wan Advisory 12, dated Saturday, October 3, 2026, at 7 AM ChST. The storm center is currently located at 18.4N 144.9E with maximum sustained winds of 85 mph, moving north at 6 mph. The visual shows a red icon marked 7 AM Sat within a brown typhoon-force wind field and a larger yellow tropical-storm-force wind field around 20N 145E. A white cone of uncertainty extends north toward 30N, indicating forecasted typhoon-strength positions at 4 AM Sun, 4 PM Sun, 4 AM Mon, 4 PM Mon, and 4 AM Tue. Top text notes that the cone contains the probable path of the storm center, but hazardous conditions can occur outside of it.

ALT Weather graphic from NWS Guam for Tropical Storm Choi-Wan (26W) at 7:45 AM ChST, Fri, 2 Oct 2026. Banner title: "TS Choi-wan (26W) Moving West-Northwest and Away from Northern CNMI". Headline highlights heavy rainfall, strong winds, and dangerous seas/surf across all Mariana Islands. Left panel details active alerts: Tropical Storm Warning for Alamagan, Pagan, Agrihan, Saipan, Tinian; Typhoon Watch for Alamagan, Pagan, Agrihan; Flood Advisory for Saipan, Tinian, Rota, Guam until 9:15 AM ChST. NWS Public Advisory 8 at 7 AM Fri, Oct 2, 2026 lists location at 17.0N 144.9E, max winds 60 MPH, moving WNW at 9 mph. Positioned approx 65 mi NW of Anatahan, 75 mi SW of Alamagan, 95 mi SW of Pagan, 130 mi SSW of Agrihan, 140 mi NNW of Saipan, 145 mi NNW of Tinian, 195 mi N of Rota, and 245 mi N of Guam. Center background shows satellite imagery of the storm system with NOAA and NWS logos at top right

ALT National Hurricane Center forecast track map for Tropical Storm Choi-Wan (Joint Typhoon Warning Center Advisory 8) on Friday, Oct 2, 2026, at 7 AM ChST. Center location is 17.0N 144.9E with maximum sustained winds of 60 mph, moving west-northwest at 9 mph. The current storm center is marked with an "X" surrounded by a yellow circle indicating tropical storm-force winds (39–73 mph). The probable track cone curves north-northeastward over the ocean, with forecast positions marked at 4 AM Sat (Tropical Storm, T), 4 PM Sat (T), 4 AM Sun (T), 4 PM Sun (T), and 4 AM Mon (T). Note at top states the cone shows the probable track of the storm center, not its size, and hazardous conditions can occur outside the cone.

ALT Invest 91W upgraded to Tropical Depression 25W

ALT Public Advisory #13 for Typhoon Saudel

ALT This graphic displays a flash flood warning plotted on a map. The warning is in effect until 4:00 PM ChST. The warning includes Dededo GU, Yigo GU and Tamuning GU. Avoid walking or driving through flood waters! Move immediately to higher ground! There are people in the warning along with 44 schools and 2 hospitals.

ALT Flood Advisory for Guam until 7:00 AM on 8/19/2026

ALT Graphic showing the upgrade of Invest 92W to a tropical depression (17W)

ALT This graphic displays a special weather statement plotted on a map. The statement is in effect until 11:30 AM ChST. The statement includes Dededo GU, Yigo GU and Tamuning GU. A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN GUAM UNTIL 1130 AM CHST. The threats associated with this storm are wind gusts up to 50 MPH and no hail is expected. Seek shelter in a sturdy structure until the storm passes.

ALT National Weather Service Guam daily weather graphic dated Friday, August 14, 2026, titled "Heavy Rainfall, Gusty Winds for Chuuk, Pohnpei, & Kosrae." Marianas: Isolated showers becoming scattered with isolated thunderstorms Saturday; west winds 10 to 15 mph; combined seas 6 to 8 ft, dropping to 5 to 7 ft Saturday. Eastern Micronesia: High Surf Advisory with 6 to 9 ft surf along south-facing reefs of Kosrae; heavy rainfall and gusty winds for Pohnpei and Kosrae through next week; Majuro has scattered showers, isolated thunderstorms, west winds 5 to 10 kt, south swell 3 to 4 ft. Western Micronesia: Heavy rainfall and gusty winds for Chuuk through next week; Palau and Yap have isolated showers, light to gentle W to SW winds, light to NW 3 ft swells. Tropical Weather Concerns: Invest 92W rated sub-low by JTWC; no tropical cyclone development expected for a few days. No direct impacts from Invest 93W or TD Nangka.

ALT Weather satellite graphic titled "Active Pattern Continues Across the West Pacific," issued Sunday, August 9, 2026, at 11:04 PM ChST by the National Weather Service Tiyan, GU. The visible/IR satellite image shows extensive cloud cover, storm tracks, surface trough axes marked with red dashed lines, wind directions marked with yellow arrows, and red lightning bolt icons across Micronesia and surrounding waters. Key storm systems identified include TY Dolphin (12W) to the far northwest, TS Peilou (13W) in the north-central region, Invest 98W (TCFA) highlighted in a red circle, and Invest 99W (Sub-Low) highlighted in a yellow circle. Key regional locations labeled on the map include Palau, Yap, Guam, Saipan, Chuuk, Pohnpei, Kosrae, Wake, Kwajalein, and Majuro.