Tropical Storm Warning issued April 16 at 3:03AM ChST by NWS Tiyan GU
Severe weather warning
Now
From Today 03:03 (1 hour ago)
Until Today 11:15 (6 hours from now)
Official warning explanations:

TYPHOON SINLAKU CONTINUES TO SLOWLY MOVE NORTHWEST AWAY FROM TINIAN AND SAIPAN

  • NEW INFORMATION: None.
  • AREAS AFFECTED: This local statement provides important information and recommended actions for people in Guam and the Northern Marianas.

  • WATCHES/WARNINGS, A Typhoon Warning continues for Rota, Tinian, Saipan, Alamagan, Pagan, and Agrihan. A Tropical Storm Warning and a Typhoon Watch continue for Guam.

A Flood Watch is in effect for Tinian and Saipan. Please monitor forecasts for any Flood Advisories or 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 2 AM ChST,the center of Typhoon Sinlaku (04W) was located near latitude 16.5N,longitude 144.5E. This was about 210 miles north of Guam. Storm motion was northwest, 305 degrees, at 5 mph. Storm intensity was 125 mph.

  • SITUATION OVERVIEW: The eye of Typhoon Sinlaku (04W) is moving slowly northwest and the outer edge of the eye is well northwest of Tinian and Saipan. Typhoon Sinlaku has been slow to move tonight and has simultaneously expanded the wind field. This has kept Guam within the tropical storm force winds and Saipan and Tinian in the destructive tropical storm force winds through the night. Typhoon Sinlaku will begin to pass through the northern CNMI just west of Alamagan, Pagan, and Agrihan today and tonight, forecasted to curve northeastward, passing north of Agrihan Friday.

...TYPHOON SINLAKU CONTINUES TO SLOWLY MOVE NORTHWEST AWAY FROM TINIAN AND SAIPAN... .NEW INFORMATION... None. .AREAS AFFECTED... This local statement provides important information and recommended actions for people in Guam and the Northern Marianas. .WATCHES/WARNINGS... A Typhoon Warning continues for Rota, Tinian, Saipan, Alamagan, Pagan, and Agrihan. A Tropical Storm Warning and a Typhoon Watch continue for Guam. A Flood Watch is in effect for Tinian and Saipan. Please monitor forecasts for any Flood Advisories or 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 2 AM ChST...the center of Typhoon Sinlaku (04W) was located near latitude 16.5N...longitude 144.5E. This was about 210 miles north of Guam. Storm motion was northwest, 305 degrees, at 5 mph. Storm intensity was 125 mph. .SITUATION OVERVIEW... The eye of Typhoon Sinlaku (04W) is moving slowly northwest and the outer edge of the eye is well northwest of Tinian and Saipan. Typhoon Sinlaku has been slow to move tonight and has simultaneously expanded the wind field. This has kept Guam within the tropical storm force winds and Saipan and Tinian in the destructive tropical storm force winds through the night. Typhoon Sinlaku will begin to pass through the northern CNMI just west of Alamagan, Pagan, and Agrihan today and tonight, forecasted to curve northeastward, passing north of Agrihan Friday.

Instructions:

People should remain in a designated shelter or in a sturdy and reinforced concrete building. Due to the size and slow movement of the storm, tropical storm force winds will be slow to subside, potentially beginning to fall below damaging levels this morning. according to the latest forecast from the Joint Typhoon Warning Center. Even when winds start to decrease, remain indoors until the government of Guam gives the "all clear".

High Surf Warning issued April 16 at 3:49AM ChST until April 17 at 5:00PM ChST by NWS Tiyan GU
Moderate weather warning
Now
From Today 03:49 (1 hour ago)
Until Today 18:00 (13 hours from now)
Official warning explanations:
  • WHAT: For the Coastal Flood Warning, significant coastal flooding up to 3 feet. For the High Surf Warning, dangerously large breaking waves of 12 to 16 feet.

  • WHERE: South, west and north facing reefs and shorelines.

  • WHEN: For the Coastal Flood Warning, until 5 PM ChST this afternoon. For the High Surf Warning, until 5 PM ChST Friday.

  • IMPACTS: Some roads may be closed. Low lying property including homes, businesses, and some critical infrastructure will be inundated. Some shoreline erosion will occur. Breaking waves can sweep people off jetties and docks, and into dangerous seas. Life-threatening swimming conditions and significant beach erosion can be expected.

  • ADDITIONAL DETAILS: As TY Sinlaku continues to move away and wind driven waves decrease, the primary swell and highest surf will become southwest. Seas will be slow to subside over the next couple of days. A High Surf Advisory may continue into the weekend.

* WHAT...For the Coastal Flood Warning, significant coastal flooding up to 3 feet. For the High Surf Warning, dangerously large breaking waves of 12 to 16 feet. * WHERE...South, west and north facing reefs and shorelines. * WHEN...For the Coastal Flood Warning, until 5 PM ChST this afternoon. For the High Surf Warning, until 5 PM ChST Friday. * IMPACTS...Some roads may be closed. Low lying property including homes, businesses, and some critical infrastructure will be inundated. Some shoreline erosion will occur. Breaking waves can sweep people off jetties and docks, and into dangerous seas. Life-threatening swimming conditions and significant beach erosion can be expected. * ADDITIONAL DETAILS...As TY Sinlaku continues to move away and wind driven waves decrease, the primary swell and highest surf will become southwest. Seas will be slow to subside over the next couple of days. A High Surf Advisory may continue into the weekend.

Instructions:

Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure.

Coastal Flood Warning issued April 16 at 3:49AM ChST until April 16 at 5:00PM ChST by NWS Tiyan GU
Severe weather warning
Now
From Today 03:49 (1 hour ago)
Until Today 18:00 (13 hours from now)
Official warning explanations:
  • WHAT: For the Coastal Flood Warning, significant coastal flooding up to 3 feet. For the High Surf Warning, dangerously large breaking waves of 12 to 16 feet.

  • WHERE: South, west and north facing reefs and shorelines.

  • WHEN: For the Coastal Flood Warning, until 5 PM ChST this afternoon. For the High Surf Warning, until 5 PM ChST Friday.

  • IMPACTS: Some roads may be closed. Low lying property including homes, businesses, and some critical infrastructure will be inundated. Some shoreline erosion will occur. Breaking waves can sweep people off jetties and docks, and into dangerous seas. Life-threatening swimming conditions and significant beach erosion can be expected.

  • ADDITIONAL DETAILS: As TY Sinlaku continues to move away and wind driven waves decrease, the primary swell and highest surf will become southwest. Seas will be slow to subside over the next couple of days. A High Surf Advisory may continue into the weekend.

* WHAT...For the Coastal Flood Warning, significant coastal flooding up to 3 feet. For the High Surf Warning, dangerously large breaking waves of 12 to 16 feet. * WHERE...South, west and north facing reefs and shorelines. * WHEN...For the Coastal Flood Warning, until 5 PM ChST this afternoon. For the High Surf Warning, until 5 PM ChST Friday. * IMPACTS...Some roads may be closed. Low lying property including homes, businesses, and some critical infrastructure will be inundated. Some shoreline erosion will occur. Breaking waves can sweep people off jetties and docks, and into dangerous seas. Life-threatening swimming conditions and significant beach erosion can be expected. * ADDITIONAL DETAILS...As TY Sinlaku continues to move away and wind driven waves decrease, the primary swell and highest surf will become southwest. Seas will be slow to subside over the next couple of days. A High Surf Advisory may continue into the weekend.

Instructions:

Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure.

Typhoon Watch issued April 16 at 3:03AM ChST by NWS Tiyan GU
Severe weather warning
Now
From Today 03:03 (1 hour ago)
Until Today 11:15 (6 hours from now)
Official warning explanations:

TYPHOON SINLAKU CONTINUES TO SLOWLY MOVE NORTHWEST AWAY FROM TINIAN AND SAIPAN

  • NEW INFORMATION: None.
  • AREAS AFFECTED: This local statement provides important information and recommended actions for people in Guam and the Northern Marianas.

  • WATCHES/WARNINGS, A Typhoon Warning continues for Rota, Tinian, Saipan, Alamagan, Pagan, and Agrihan. A Tropical Storm Warning and a Typhoon Watch continue for Guam.

A Flood Watch is in effect for Tinian and Saipan. Please monitor forecasts for any Flood Advisories or 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 2 AM ChST,the center of Typhoon Sinlaku (04W) was located near latitude 16.5N,longitude 144.5E. This was about 210 miles north of Guam. Storm motion was northwest, 305 degrees, at 5 mph. Storm intensity was 125 mph.

  • SITUATION OVERVIEW: The eye of Typhoon Sinlaku (04W) is moving slowly northwest and the outer edge of the eye is well northwest of Tinian and Saipan. Typhoon Sinlaku has been slow to move tonight and has simultaneously expanded the wind field. This has kept Guam within the tropical storm force winds and Saipan and Tinian in the destructive tropical storm force winds through the night. Typhoon Sinlaku will begin to pass through the northern CNMI just west of Alamagan, Pagan, and Agrihan today and tonight, forecasted to curve northeastward, passing north of Agrihan Friday.

...TYPHOON SINLAKU CONTINUES TO SLOWLY MOVE NORTHWEST AWAY FROM TINIAN AND SAIPAN... .NEW INFORMATION... None. .AREAS AFFECTED... This local statement provides important information and recommended actions for people in Guam and the Northern Marianas. .WATCHES/WARNINGS... A Typhoon Warning continues for Rota, Tinian, Saipan, Alamagan, Pagan, and Agrihan. A Tropical Storm Warning and a Typhoon Watch continue for Guam. A Flood Watch is in effect for Tinian and Saipan. Please monitor forecasts for any Flood Advisories or 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 2 AM ChST...the center of Typhoon Sinlaku (04W) was located near latitude 16.5N...longitude 144.5E. This was about 210 miles north of Guam. Storm motion was northwest, 305 degrees, at 5 mph. Storm intensity was 125 mph. .SITUATION OVERVIEW... The eye of Typhoon Sinlaku (04W) is moving slowly northwest and the outer edge of the eye is well northwest of Tinian and Saipan. Typhoon Sinlaku has been slow to move tonight and has simultaneously expanded the wind field. This has kept Guam within the tropical storm force winds and Saipan and Tinian in the destructive tropical storm force winds through the night. Typhoon Sinlaku will begin to pass through the northern CNMI just west of Alamagan, Pagan, and Agrihan today and tonight, forecasted to curve northeastward, passing north of Agrihan Friday.

Instructions:

People should remain in a designated shelter or in a sturdy and reinforced concrete building. Due to the size and slow movement of the storm, tropical storm force winds will be slow to subside, potentially beginning to fall below damaging levels this morning. according to the latest forecast from the Joint Typhoon Warning Center. Even when winds start to decrease, remain indoors until the government of Guam gives the "all clear".

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