Lexington Weather
Lexington, Massachusetts, USA
49°F
4/12/2026 5:08pm
- Few Clouds
-
48.6°F / 9.2°C
-
25.3°F
-
40%
- Calm, 10-min avg: Calm, gust: 2 mph
- 10 miles
- 0.00 in
Watches, Warnings, and Advisories
Issued by the National Weather Service
TROPICAL STORM WARNING
Guam, GU
Tropical Storm Warning issued April 13 at 3:42AM ChST by NWS Tiyan GU
TROPICAL STORM WARNING REMAINS IN EFFECT... ...TYPHOON WATCH REMAINS IN EFFECT
Areas Affected: Guam
Urgency: Immediate
Severity: Severe
Certainty: Likely
Alert Sent: Monday 3:42am ChST
Alert Effective: Monday 3:42am ChST
Alert Expires: Monday 11:45am ChST
Event Onset: Monday 3:42am ChST
Issued by: NWS Tiyan GU
Details:
...TROPICAL STORM WARNING REMAINS IN EFFECT... ...TYPHOON WATCH REMAINS IN EFFECT... ...SUPER TYPHOON SINLAKU MOVING NORTH-NORTHWEST TOWARD THE MARIANAS... .NEW INFORMATION... The Typhoon Warning for Fananu in Chuuk is cancelled. .AREAS AFFECTED... This local statement provides important information and recommended actions for people in Chuuk State, Guam and the Northern Marianas. .WATCHES/WARNINGS... The Typhoon Warning for Fananu in Chuuk State is cancelled. A Typhoon Warning remains in effect for Rota, Tinian, and Saipan. Tropical Storm Warning and Typhoon Watch remains in effect for Guam. A Tropical Storm Warning and Typhoon Watch remains in effect for Ulul in Chuuk State. A Tropical Storm Watch remains in effect for Pagan and Alamagan. A Flood Watch is in effect for all of Guam and the Northern Marianas. 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 Super Typhoon Sinlaku (04W) was located near latitude 11.4N...longitude 149.9E. This was about 370 miles east-southeast of Guam and 380 miles southeast of Tinian and Saipan. Storm motion was north-northwest, 335 degrees, at 10 mph. Storm intensity was 175 mph. .SITUATION OVERVIEW... Super Typhoon Sinlaku (04W) is slowly moving away from Chuuk State, as it moves northwest and continues heading towards the Marianas. In the meantime, Sinlaku continues to bring periods of intense showers, thunderstorms, and winds to northwest Chuuk, primarily to Ulul and just northwest of Fananu. Recent storm tracks produced by JTWC continue to show a slight northward shift in the storm path during its passage toward the Marianas, with the current forecast now expected to cross north of Rota and near or over Tinian and Saipan. Latest forecast still has Sinlaku moving into the Marianas as a category 4 or 5 typhoon.
Information:
The window of time to complete preparations for the protection of life and property will be closing later today. Items to bring to a shelter include a first aid kit, medicines and prescriptions, baby food and diapers, games and books, toiletries, a battery powered radio, a cell phone, flashlights with extra batteries, a blanket or sleeping bag for each person, personal identification, copies of key papers such as insurance policies, available cash and credit cards. Remember, pets are not allowed in most public shelters, so check ahead with your intended shelter. Regarding your home or business, finish covering all windows and doors with shutters or plywood. Move patio furniture and other loose objects indoors. Brace all exterior doors, including garage doors. Stay calm and keep informed. Comply with any evacuation orders that are issued for your area. If you live in a metal roof or container home, or you live in a surge zone or any location prone to flooding, evacuate to a designated shelter or ride out the storm in the sturdy home of family or friends outside of evacuation zones.
Meta data:
ID: urn:oid:2.49.0.1.840.0.0d73edb2a8e7b247f13705f9089044c97a1ebf4b.001.1 Codes: GUZ001 Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0d73edb2a8e7b247f13705f9089044c97a1ebf4b.001.1
HIGH SURF WARNING
Guam, GU
High Surf Warning issued April 13 at 4:38AM ChST until April 16 at 6:00PM ChST by NWS Tiyan GU
HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY... ...COASTAL FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON
Areas Affected: Guam; Rota; Tinian; Saipan
Urgency: Expected
Severity: Moderate
Certainty: Likely
Alert Sent: Monday 4:38am ChST
Alert Effective: Monday 4:38am ChST
Alert Expires: Monday 6:45pm ChST (expect updated alert by this time)
Event Onset: Monday 4:38am ChST
Event Ends: Thursday 6:00pm ChST
Issued by: NWS Tiyan GU
Details:
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY... ...COASTAL FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON... * WHAT...For the High Surf Warning, dangerously large breaking waves of 10 to 15 feet for Guam and 15 to 25 ft for Rota, Tinian and Saipan. For the Coastal Flood Watch, significant coastal flooding 1 to 3 ft for Guam, and 3 to 7 ft for Rota, Tinian, and Saipan are possible. * WHERE...North, east and south facing reefs of the Marianas. For the Coastal Flood Watch, north, east, and south facing shorelines. * WHEN...For the High Surf Warning, until 6 PM ChST Thursday. For the Coastal Flood Watch, from 6 AM ChST Monday through Wednesday afternoon. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Some shoreline erosion may 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 STY Sinlaku moves towards the Marianas swell and surf are expected to rapidly build. This will generate dangerous surf and increase the risk for coastal inundation, especially as STY Sinlaku begins to move through the Marianas on Tuesday.
Information:
Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure.
Meta data:
ID: urn:oid:2.49.0.1.840.0.454bdb5373137f31fbc17e41c7f89881c425ff5e.001.1 Codes: GUZ001, MPZ001, MPZ002, MPZ003 Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.454bdb5373137f31fbc17e41c7f89881c425ff5e.001.1
TYPHOON WATCH
Guam, GU
Typhoon Watch issued April 13 at 3:42AM ChST by NWS Tiyan GU
TROPICAL STORM WARNING REMAINS IN EFFECT... ...TYPHOON WATCH REMAINS IN EFFECT
Areas Affected: Guam
Urgency: Future
Severity: Severe
Certainty: Possible
Alert Sent: Monday 3:42am ChST
Alert Effective: Monday 3:42am ChST
Alert Expires: Monday 11:45am ChST
Event Onset: Monday 3:42am ChST
Issued by: NWS Tiyan GU
Details:
...TROPICAL STORM WARNING REMAINS IN EFFECT... ...TYPHOON WATCH REMAINS IN EFFECT... ...SUPER TYPHOON SINLAKU MOVING NORTH-NORTHWEST TOWARD THE MARIANAS... .NEW INFORMATION... The Typhoon Warning for Fananu in Chuuk is cancelled. .AREAS AFFECTED... This local statement provides important information and recommended actions for people in Chuuk State, Guam and the Northern Marianas. .WATCHES/WARNINGS... The Typhoon Warning for Fananu in Chuuk State is cancelled. A Typhoon Warning remains in effect for Rota, Tinian, and Saipan. Tropical Storm Warning and Typhoon Watch remains in effect for Guam. A Tropical Storm Warning and Typhoon Watch remains in effect for Ulul in Chuuk State. A Tropical Storm Watch remains in effect for Pagan and Alamagan. A Flood Watch is in effect for all of Guam and the Northern Marianas. 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 Super Typhoon Sinlaku (04W) was located near latitude 11.4N...longitude 149.9E. This was about 370 miles east-southeast of Guam and 380 miles southeast of Tinian and Saipan. Storm motion was north-northwest, 335 degrees, at 10 mph. Storm intensity was 175 mph. .SITUATION OVERVIEW... Super Typhoon Sinlaku (04W) is slowly moving away from Chuuk State, as it moves northwest and continues heading towards the Marianas. In the meantime, Sinlaku continues to bring periods of intense showers, thunderstorms, and winds to northwest Chuuk, primarily to Ulul and just northwest of Fananu. Recent storm tracks produced by JTWC continue to show a slight northward shift in the storm path during its passage toward the Marianas, with the current forecast now expected to cross north of Rota and near or over Tinian and Saipan. Latest forecast still has Sinlaku moving into the Marianas as a category 4 or 5 typhoon.
Information:
The window of time to complete preparations for the protection of life and property will be closing later today. Items to bring to a shelter include a first aid kit, medicines and prescriptions, baby food and diapers, games and books, toiletries, a battery powered radio, a cell phone, flashlights with extra batteries, a blanket or sleeping bag for each person, personal identification, copies of key papers such as insurance policies, available cash and credit cards. Remember, pets are not allowed in most public shelters, so check ahead with your intended shelter. Regarding your home or business, finish covering all windows and doors with shutters or plywood. Move patio furniture and other loose objects indoors. Brace all exterior doors, including garage doors. Stay calm and keep informed. Comply with any evacuation orders that are issued for your area. If you live in a metal roof or container home, or you live in a surge zone or any location prone to flooding, evacuate to a designated shelter or ride out the storm in the sturdy home of family or friends outside of evacuation zones.
Meta data:
ID: urn:oid:2.49.0.1.840.0.0d73edb2a8e7b247f13705f9089044c97a1ebf4b.001.2 Codes: GUZ001 Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0d73edb2a8e7b247f13705f9089044c97a1ebf4b.001.2
FLOOD WATCH
Guam, GU
Flood Watch issued April 13 at 4:53AM ChST until April 15 at 10:00AM ChST by NWS Tiyan GU
FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING
Areas Affected: Guam; Rota; Tinian; Saipan
Urgency: Future
Severity: Severe
Certainty: Possible
Alert Sent: Monday 4:53am ChST
Alert Effective: Monday 4:53am ChST
Alert Expires: Tuesday 5:00am ChST (expect updated alert by this time)
Event Onset: Monday 4:53am ChST
Event Ends: Wednesday 10:00am ChST
Issued by: NWS Tiyan GU
Details:
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Guam, Rota, Saipan and Tinian. * WHEN...Through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - - Super Typhoon Sinlaku is expected to approach the Marianas over the next 12 to 36 hours, crossing near or over Tinian and Saipan Tuesday night. Rainfall amounts upwards of 15 to 25 inches are possible near the center. - With the recent northward shifts in the track, rainfall totals of 6 to 12 inches, with locally higher amounts, are more likely for Guam. - Http://www.weather.gov/safety/flood - http://www.weather.gov/safety/flood
Information:
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Meta data:
ID: urn:oid:2.49.0.1.840.0.f99cfb1594da942785bc6ea4a016c74efad44fc5.001.1 Codes: GUZ001, MPZ001, MPZ002, MPZ003 Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.f99cfb1594da942785bc6ea4a016c74efad44fc5.001.1
COASTAL FLOOD WATCH
Guam, GU
Coastal Flood Watch issued April 13 at 4:38AM ChST until April 15 at 4:00PM ChST by NWS Tiyan GU
HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY... ...COASTAL FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON
Areas Affected: Guam; Rota; Tinian; Saipan
Urgency: Future
Severity: Moderate
Certainty: Possible
Alert Sent: Monday 4:38am ChST
Alert Effective: Monday 4:38am ChST
Alert Expires: Monday 6:45pm ChST (expect updated alert by this time)
Event Onset: Monday 6:00am ChST
Event Ends: Wednesday 4:00pm ChST
Issued by: NWS Tiyan GU
Details:
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY... ...COASTAL FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON... * WHAT...For the High Surf Warning, dangerously large breaking waves of 10 to 15 feet for Guam and 15 to 25 ft for Rota, Tinian and Saipan. For the Coastal Flood Watch, significant coastal flooding 1 to 3 ft for Guam, and 3 to 7 ft for Rota, Tinian, and Saipan are possible. * WHERE...North, east and south facing reefs of the Marianas. For the Coastal Flood Watch, north, east, and south facing shorelines. * WHEN...For the High Surf Warning, until 6 PM ChST Thursday. For the Coastal Flood Watch, from 6 AM ChST Monday through Wednesday afternoon. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Some shoreline erosion may 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 STY Sinlaku moves towards the Marianas swell and surf are expected to rapidly build. This will generate dangerous surf and increase the risk for coastal inundation, especially as STY Sinlaku begins to move through the Marianas on Tuesday.
Information:
Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure.
Meta data:
ID: urn:oid:2.49.0.1.840.0.454bdb5373137f31fbc17e41c7f89881c425ff5e.001.2 Codes: GUZ001, MPZ001, MPZ002, MPZ003 Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.454bdb5373137f31fbc17e41c7f89881c425ff5e.001.2
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