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gum.nws-bot.us
GUM continues Tropical Storm Warning for Saipan, Tinian [MP] until further notice
at Fri, 02 Oct 2026 17:34:14 +0000 via IEMbot
Additional Details Here.
October 2, 2026 at 5:47 PM
gum.nws-bot.us
🚨 Tropical Storm Warning issued October 3 at 3:33AM ChST by NWS Tiyan GU 🚨
Additional Details Here.
...CHOI-WAN UPGRADED TO TYPHOON TO THE WEST OF PAGAN, MOVING NORTH... ...TYPHOON WARNING NOW IN EFFECT FOR ALAMAGAN IN THE CNMI... .NEW INFORMATION... Choi-wan (26W) was upgraded to a typhoon. A Typhoon Warning is now in effect for Alamagan in the CNMI. .AREAS AFFECTED... This local statement provides information and recommended actions for people on Saipan, Tinian, Agrihan, Pagan and Alamagan in the Commonwealth of the Northern Marianas. .Watches/Warnings... A Typhoon Warning is now in effect for Alamagan in the CNMI. A Typhoon Warning remains in effect for Agrihan and Pagan in the CNMI. A Tropical Storm Warning remains in effect for Tinian and Saipan in the CNMI. A Typhoon Warning means that typhoon conditions are expected, including winds of 74 mph or more, with tropical storm force winds beginning within 24 hours. A Tropical Storm Warning means that tropical storm conditions, including winds of 39 to 73 mph, are expected within 24 hours. A Flood Watch remains in effect for Tinian and Saipan. Please listen closely for any Flash Flood Warnings that might be in effect for your area. Please check the latest public and marine forecasts for detailed information about additional hazards. .STORM INFORMATION... At 1 AM ChST, the center of Typhoon Choi-wan (26W) was located near latitude 18.0N, longitude 144.7E. This was about 70 miles west of Pagan, 210 miles north-northwest of Saipan, and 310 miles north of Guam. Storm motion was north, 360 degrees, at 9 mph. Storm intensity was 80 mph. .SITUATION OVERVIEW... Typhoon Choi-wan has begun to intensify more rapidly, and the typhoon force wind field has quickly come to encompass Alamagan and Pagan, as the latest forecast has expanded typhoon winds southward. So, a Typhoon Warning was issued for Alamagan, maintaining the Typhoon Warnings in effect for Pagan and Agrihan. Choi-wan is expected to make a slight turn toward the north- northeast this morning with little change in forward speed through Sunday, passing near to the west of Agrihan later this morning or early this afternoon. As it does so, Choi-wan is forecast to intensify through Sunday, becoming Category 2 as it passes Agrihan Saturday, then Category 3 Saturday night as it moves away. Intense rainbands wrapping into Choi-wan's center from the south continue to pummel the Marianas as they are pulled east to northeast, producing heavy downpours and strong gusts exceeding 60 mph.
October 2, 2026 at 5:45 PM
gum.weather.im
GUM continues Tropical Storm Warning for Saipan, Tinian [MP] until further notice Link
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October 2, 2026 at 5:34 PM
willweatherrva.bsky.social
Typhoon #Choi-wan #26W – Tropical Cyclone Advisory #6: 1200 UTC 2 October 2026: Choi-wan becomes a typhoon as it continues moving away from Tinian and Saipan.
willweatherrva.beehiiv.com/p/typhoon-ch...
Typhoon Choiwan (26W) – Tropical Cyclone Advisory #6: 1200 UTC 2 October 2026
Choi-wan becomes a typhoon as it continues moving away from Tinian and Saipan.
willweatherrva.beehiiv.com
October 2, 2026 at 2:34 PM
gum.nws-bot.us
GUM continues Flood Watch for Guam [GU] and Rota, Saipan, Tinian [MP] till Oct 5, 3:00 AM CHST
at Fri, 02 Oct 2026 12:58:37 +0000 via IEMbot
Additional Details Here.
October 2, 2026 at 1:07 PM
gum.nws-bot.us
🚨 Flood Watch issued October 2 at 10:56PM ChST until October 5 at 4:00AM ChST by NWS Tiyan GU 🚨
Additional Details Here.
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Guam, Rota, Tinian, and Saipan. * 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... - Tropical Storm Choi-wan (26W) is nearly stationary and is expected to pivot north-northeast through the northern CNMI through the weekend near Pagan and Agrihan. To the south of Choi-wan, surging monsoon inflow will maintain wet conditions into early next week, resulting in 4 to 6 inches of rain for Guam and Rota, and 5 to 8 inches for Tinian and Saipan during the Watch period. - http://www.weather.gov/safety/flood
October 2, 2026 at 1:00 PM
gum.weather.im
GUM continues Flood Watch for Guam [GU] and Rota, Saipan, Tinian [MP] till Oct 5, 3:00 AM CHST Link
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October 2, 2026 at 12:58 PM
gum.nws-bot.us
GUM continues Coastal Flood Watch for Saipan, Tinian [MP] till Oct 5, 9:00 PM CHST
at Fri, 02 Oct 2026 12:36:39 +0000 via IEMbot
Additional Details Here.
October 2, 2026 at 12:47 PM
gum.nws-bot.us
GUM continues Rip Currents Statement for Saipan, Tinian [MP] till Oct 5, 3:00 AM CHST
at Fri, 02 Oct 2026 12:36:40 +0000 via IEMbot
Additional Details Here.
October 2, 2026 at 12:47 PM
gum.nws-bot.us
GUM continues Tropical Storm Warning for Saipan Coastal Waters, Tinian Coastal Waters [PM] until further notice
at Fri, 02 Oct 2026 12:42:05 +0000 via IEMbot
Additional Details Here.
October 2, 2026 at 12:47 PM
gum.nws-bot.us
🚨 Tropical Storm Warning issued October 2 at 10:41PM ChST by NWS Tiyan GU 🚨
Additional Details Here.
* WHAT...Southwest tropical storm force wind to 40 kt with gusts to 60 kt and seas 14 to 20 feet. * WHERE...Tinian and Saipan Coastal Waters. * WHEN...Until further notice. * IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...Tropical Storm Choi-wan (26W) continues to strengthen as it slowly pivots north-northeast near the northern Marianas west of Alamagan, with Tropical storm force winds already being felt over Saipan since early this morning. Hazardous seas will continue. * WHAT...For the Gale Warning, southwest winds 25 to 35 kt with frequent gusts up to 45 kt and seas 14 to 20 feet expected. For the Hazardous Seas Watch, very steep and hazardous seas 15 feet or greater possible. * WHERE...Guam and Rota Coastal Waters. * WHEN...For the Gale Warning, until 5 PM ChST Saturday. For the Hazardous Seas Watch, from Saturday afternoon through Sunday afternoon. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...Combined seas of 14 to 20 feet tonight will continue Saturday, then gradually diminish. West to southwest winds will be strong to gale-force. * WHAT...For the Gale Warning, southwest winds 25 to 35 kt with frequent gusts up to 45 kt and seas 14 to 20 feet expected. For the Hazardous Seas Watch, very steep and hazardous seas 15 feet or greater possible. * WHERE...Guam and Rota Coastal Waters. * WHEN...For the Gale Warning, until 5 PM ChST Saturday. For the Hazardous Seas Watch, from Saturday afternoon through Sunday afternoon. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...Combined seas of 14 to 20 feet tonight will continue Saturday, then gradually diminish. West to southwest winds will be strong to gale-force.
October 2, 2026 at 12:45 PM
gum.nws-bot.us
High Surf Advisory issued October 2 at 10:36PM ChST until October 5 at 4:00AM ChST by NWS Tiyan GU
Additional Details Here.
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* WHAT...For the High Surf Advisory, large breaking waves of 10 to 14 feet expected in the surf zone. For the Coastal Flood Watch, significant coastal flooding possible. For the High Rip Current Risk, dangerous rip currents expected. * WHERE...North and west facing reefs of Tinian and Saipan. * WHEN...For the High Surf Advisory, until 4 AM ChST Monday. For the Coastal Flood Watch, through Monday evening. For the High Rip Current Risk, through late Sunday night. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Some shoreline erosion may occur. Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * WHAT...For the High Surf Advisory, large breaking waves of 10 to 14 feet expected in the surf zone. For the Coastal Flood Watch, significant coastal flooding possible. For the High Rip Current Risk, dangerous rip currents expected. * WHERE...North and west facing reefs of Tinian and Saipan. * WHEN...For the High Surf Advisory, until 4 AM ChST Monday. For the Coastal Flood Watch, through Monday evening. For the High Rip Current Risk, through late Sunday night. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Some shoreline erosion may occur. Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * WHAT...For the High Surf Advisory, large breaking waves of 10 to 14 feet expected in the surf zone. For the Coastal Flood Watch, significant coastal flooding possible. For the High Rip Current Risk, dangerous rip currents expected. * WHERE...North and west facing reefs of Tinian and Saipan. * WHEN...For the High Surf Advisory, until 4 AM ChST Monday. For the Coastal Flood Watch, through Monday evening. For the High Rip Current Risk, through late Sunday night. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Some shoreline erosion may occur. Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * WHAT...For the High Surf Advisory, large breaking waves of 8 to 12 feet expected in the surf zone. For the High Rip Current Risk, dangerous rip currents expected. * WHERE...North, south, and west facing reefs of Guam and Rota. * WHEN...For the High Surf Advisory, until 4 AM ChST Monday. For the High Rip Current Risk, through late Sunday night. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water.
October 2, 2026 at 12:45 PM
gum.weather.im
GUM continues Tropical Storm Warning for Saipan Coastal Waters, Tinian Coastal Waters [PM] until further notice Link
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October 2, 2026 at 12:42 PM
gum.weather.im
GUM continues Rip Currents Statement for Saipan, Tinian [MP] till Oct 5, 3:00 AM CHST Link
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October 2, 2026 at 12:36 PM
gum.weather.im
GUM continues High Surf Advisory for Saipan, Tinian [MP] till Oct 5, 3:00 AM CHST Link
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October 2, 2026 at 12:36 PM
gum.weather.im
GUM continues Coastal Flood Watch for Saipan, Tinian [MP] till Oct 5, 9:00 PM CHST Link
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October 2, 2026 at 12:36 PM
gum.nws-bot.us
🚨 Tropical Storm Warning issued October 2 at 9:21PM ChST by NWS Tiyan GU 🚨
Additional Details Here.
...TYPHOON WARNING NOW IN EFFECT FOR AGRIHAN AND PAGAN IN THE CNMI... ...TROPICAL STORM CHOI-WAN NEARLY STATIONARY AS IT CONTINUES WEST- NORTHWEST AWAY FROM ANATAHAN... .NEW INFORMATION... A Typhoon Warning is now in effect for Agrihan and Pagan in the CNMI. .AREAS AFFECTED... This local statement provides information and recommended actions for people on Saipan, Tinian, Agrihan, Pagan and Alamagan in the Commonwealth of the Northern Marianas. .WATCHES/WARNINGS... A Typhoon Warning is now in effect for Agrihan and Pagan in the CNMI. A Tropical Storm Warning remains in effect for Tinian, Saipan, and Alamagan in the CNMI. A Typhoon Watch remains in effect for Alamagan in the CNMI. A Typhoon Warning means that typhoon conditions, including winds of 74 mph or more are expected, with tropical storm force winds beginning within 24 hours. A Tropical Storm Warning means that tropical storm conditions, including winds of 39 to 73 mph, are expected within 24 hours. A Typhoon Watch means that typhoon conditions are possible within 24 hours. A Flood Watch remains in effect for Tinian and Saipan. Please listen closely for any Flash Flood Warnings that might be in effect for your area. Please check the latest public and marine forecasts for detailed information about additional hazards. .STORM INFORMATION... At 8 PM ChST, the center of Tropical Storm Choi-wan (26W) was located near latitude 17.1N, longitude 144.7E. This was about 80 miles northwest of Alamagan, 100 miles southwest of Pagan, 130 miles south-southwest of Agrihan, and 250 miles north of Guam. Storm motion was west-northwest, 300 degrees, at 2 mph. Storm intensity was 70 mph. .SITUATION OVERVIEW... Tropical Storm Choi-wan is very slowly pivoting to the north as it moves away from Anatahan, and is expected to continue to intensify through tonight and Saturday as it turns north-northeast toward Agrihan and Pagan, likely becoming a typhoon later tonight. The latest forecast shows Choi-wan as a Category 1 typhoon as it passes just west of Pagan and moves near or over Agrihan, sometime Saturday afternoon, and a Typhoon Warning has been issued for Agrihan and Pagan. During this time, the wind field will continue to expand slightly, exposing Tinian and Saipan to tropical storm conditions a little longer, possibly into late Saturday night. While showers have tapered a little earlier in the day, the intense rainbands that pummeled Guam and Rota earlier this morning are now being pulled toward Tinian and Saipan, with additional heavy showers and thunderstorms expected tonight.
October 2, 2026 at 11:30 AM
gum.nws-bot.us
GUM continues Tropical Storm Warning for Saipan, Tinian [MP] until further notice
at Fri, 02 Oct 2026 11:22:04 +0000 via IEMbot
Additional Details Here.
October 2, 2026 at 11:27 AM
gum.weather.im
GUM continues Tropical Storm Warning for Saipan, Tinian [MP] until further notice Link
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October 2, 2026 at 11:22 AM
gum.nws-bot.us
🚨 Flood Watch issued October 2 at 3:05PM ChST until October 5 at 4:00AM ChST by NWS Tiyan GU 🚨
Additional Details Here.
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Guam, Rota, Saipan and Tinian. * 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... - Moist monsoon inflow into Tropical Storm Choi-wan (26W) will continue to create locally heavy showers, scattered for Guam and Rota, and scattered to categorical for Tinian and Saipan. - http://www.weather.gov/safety/flood
October 2, 2026 at 5:15 AM
gum.nws-bot.us
GUM continues Tropical Storm Warning for Saipan, Tinian [MP] until further notice
at Fri, 02 Oct 2026 04:54:53 +0000 via IEMbot
Additional Details Here.
October 2, 2026 at 5:07 AM
gum.nws-bot.us
GUM continues Flood Watch for Guam [GU] and Rota, Saipan, Tinian [MP] till Oct 5, 3:00 AM CHST
at Fri, 02 Oct 2026 05:05:20 +0000 via IEMbot
Additional Details Here.
October 2, 2026 at 5:07 AM
gum.weather.im
GUM continues Flood Watch for Guam [GU] and Rota, Saipan, Tinian [MP] till Oct 5, 3:00 AM CHST Link
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October 2, 2026 at 5:05 AM
gum.nws-bot.us
🚨 Tropical Storm Warning issued October 2 at 2:45PM ChST by NWS Tiyan GU 🚨
Additional Details Here.
* WHAT...Southwest winds 25 to 40 kt with gusts to 55 kt and seas 14 to 20 feet. * WHERE...Tinian and Saipan Coastal Waters. * WHEN...Until further notice. * IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...Tropical Storm Choi-wan (26W) continues to develop as it moves westward across the northern Marianas south of Alamagan, with Tropical storm force winds already being felt over Saipan since early this morning. Hazardous seas will continue. * WHAT...For the Gale Warning, southwest winds 20 to 30 kt with frequent gusts up to 40 kt and seas 14 to 20 feet expected. For the Small Craft Advisory, southwest winds 25 to 30 kt with gusts up to 40 kt and seas 12 to 14 feet. For the Hazardous Seas Watch, very steep and hazardous seas 15 feet or greater possible. * WHERE...Guam and Rota Coastal Waters. * WHEN...For the Gale Warning, until 5 PM ChST Saturday. For the Small Craft Advisory, until 5 AM ChST Friday. For the Hazardous Seas Watch, from Saturday afternoon through Sunday afternoon. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...Combined seas of 14 to 20 feet tonight will continue Saturday, then gradually diminish. West to southwest winds will be strong to gale-force. * WHAT...For the Gale Warning, southwest winds 20 to 30 kt with frequent gusts up to 40 kt and seas 14 to 20 feet expected. For the Small Craft Advisory, southwest winds 25 to 30 kt with gusts up to 40 kt and seas 12 to 14 feet. For the Hazardous Seas Watch, very steep and hazardous seas 15 feet or greater possible. * WHERE...Guam and Rota Coastal Waters. * WHEN...For the Gale Warning, until 5 PM ChST Saturday. For the Small Craft Advisory, until 5 AM ChST Friday. For the Hazardous Seas Watch, from Saturday afternoon through Sunday afternoon. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...Combined seas of 14 to 20 feet tonight will continue Saturday, then gradually diminish. West to southwest winds will be strong to gale-force.
October 2, 2026 at 5:00 AM
gum.nws-bot.us
🚨 Tropical Storm Warning issued October 2 at 2:54PM ChST by NWS Tiyan GU 🚨
Additional Details Here.
...TROPICAL STORM CHOI-WAN SLOWLY MOVING WEST-NORTHWEST AND INCHING CLOSER TO ALAMAGAN... .NEW INFORMATION... None. .AREAS AFFECTED... This local statement provides information and recommended actions for people on Saipan, Tinian, Agrihan, Pagan and Alamagan in the Commonwealth of the Northern Marianas. .WATCHES/WARNINGS... A Tropical Storm Warning remains in effect for Saipan, Tinian and their adjacent coastal waters, as well as Alamagan, Pagan, and Agrihan in the CNMI. A Typhoon Watch remains in effect for Alamagan, Pagan, and Agrihan in the CNMI. A Typhoon Watch means that typhoon conditions, including winds of 74 mph or more, are possible within 48 hours. A Tropical Storm Warning means that tropical storm conditions are expected within 24 hours. A Flood Watch remains in effect for Tinian and Saipan. Please listen closely for any Flash Flood Warnings that might be in effect for your area. Please check the latest public and marine forecasts for detailed information about additional hazards. .STORM INFORMATION... At 1 PM ChST, the center of Tropical Storm Choi-wan (26W) was located near latitude 17.2N and longitude 144.7E. This was about 260 miles north of Guam. Choi-wan is moving west-northwest at 5 mph, slowing down before pivoting toward the north-northeast with little change in forward speed through Saturday as it moves up the Far Northern Marianas. Maximum sustained winds have increased to 65 mph. Choi-wan is forecast to intensify through tonight, possibly becoming a typhoon later today. Tropical storm force winds continue to extend outward from the center up to 125 miles, however, the wind field is expected to expand farther south over the next few hours. .SITUATION OVERVIEW... Tropical Storm Choi-wan continues to move away from Anatahan and is inching closer to Alamagan, pivoting slowly to the north-northeast through Saturday. During this time, the wind field will continue to expand, exposing Tinian and Saipan in Tropical Storm condition a little longer, now through Saturday. While showers have tapered a little earlier in the day, rainbands that pummeled Guam and Rota earlier this morning are now being pulled toward Tinian and Saipan, with more intense showers and thunderstorms expected tonight.
October 2, 2026 at 5:00 AM