Weather service warnings, our own tide flood forecast, PG&E outages, evacuation zones, ferry service changes and AlertMarin messages for Tiburon, Belvedere and Strawberry, posted automatically as they start and end.
Due to tidal flooding, all Marin Transit routes may be delayed up to 10 minutes to accomodate slower speeds and potential flood detours. Check real time information for your route at marintransit.gov
Marin Transit alerts →Bridge work on US-101 Southbound between Wolfback Rdg (Sausalito) and Golden Gate Bridge - Toll Plaza (San Francisco). Lanes closed until 5 AM. From 8:00 PM Wednesday, October 28, 2026 to 5:00 AM Thursday, October 29, 2026.
511 traffic →Lucky Drive and Tamal Vista at Fifer are now OPEN. Flooding has cleared and road conditions have improved. Exercise caution and do not drive through floodwaters. Larkspur Plaza remains closed as of 4:40pm. Updates: Emergency.MarinCounty.gov.
AlertMarin sent this to the peninsula; the incident itself may be elsewhere in Marin.
AlertMarin message →ROAD CLOSED due to flooding at Lucky Drive and Tamal Vista at Fifer in Corte Madera and Larkspur Plaza Drive in Larkspur. If currently traveling in the area, take an alternate route. Updates: Emergency.MarinCounty.gov.
AlertMarin sent this to the peninsula; the incident itself may be elsewhere in Marin.
AlertMarin message →A prescribed burn is being conducted in Novato between the Bay Vista apartments and Marin Valley Mobile Country Club today, 10/28/2026 through 10/29 at 10:00 AM. Smoke may be visible. Please avoid calling 9-1-1 for updates. More info: Emergency.MarinCounty.gov.
AlertMarin sent this to the peninsula; the incident itself may be elsewhere in Marin.
AlertMarin message →The National Weather Service's coastal flood advisory is in effect until 6 p.m. Oct. 31. Up to 1.9 feet of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways.
Our estimate: The high tides at 2:11 p.m. Thursday, Oct. 29 (about 7.6 feet) and 3:07 p.m. Friday, Oct. 30 (about 7.3 feet) reaching about 7 feet or more at Point Chauncey, the level at which Tiburon Boulevard at Beach Road has flooded before. Greenwood Cove Drive, Cove Road at Cove Place in Belvedere, Strawberry Circle and other low spots could flood around high tide. Don't drive or walk through floodwaters. This is an estimate from NOAA tide predictions and recent Richmond and San Francisco gauge readings, not an official forecast. How we estimate
NWS advisory text →Golden Gate Ferry reports modified service on the Tiburon-San Francisco route due to mechanical problems until further notice.
Tiburon ferry service →Due to tidal flooding, all Marin Transit routes may be delayed up to 10 minutes to accomodate slower speeds and potential flood detours. Check real time information for your route at marintransit.gov
Bridge work on US-101 Southbound between Wolfback Rdg (Sausalito) and Golden Gate Bridge - Toll Plaza (San Francisco). Lanes closed until 5 AM. From 8:00 PM Wednesday, October 28, 2026 to 5:00 AM Thursday, October 29, 2026.
Lucky Drive and Tamal Vista at Fifer are now OPEN. Flooding has cleared and road conditions have improved. Exercise caution and do not drive through floodwaters. Larkspur Plaza remains closed as of 4:40pm. Updates: Emergency.MarinCounty.gov.
AlertMarin sent this to the peninsula; the incident itself may be elsewhere in Marin.
ROAD CLOSED due to flooding at Lucky Drive and Tamal Vista at Fifer in Corte Madera and Larkspur Plaza Drive in Larkspur. If currently traveling in the area, take an alternate route. Updates: Emergency.MarinCounty.gov.
AlertMarin sent this to the peninsula; the incident itself may be elsewhere in Marin.
AlertMarin's "FLOODING - ROAD CLOSURES" has expired.
AlertMarin sent this to the peninsula; the incident itself may be elsewhere in Marin.
A prescribed burn is being conducted in Novato between the Bay Vista apartments and Marin Valley Mobile Country Club today, 10/28/2026 through 10/29 at 10:00 AM. Smoke may be visible. Please avoid calling 9-1-1 for updates. More info: Emergency.MarinCounty.gov.
AlertMarin sent this to the peninsula; the incident itself may be elsewhere in Marin.
The National Weather Service's coastal flood advisory is in effect until 6 p.m. Oct. 31. Up to 1.9 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. Our estimate shows the high tides at 1:24 p.m. Wednesday, Oct. 28 (about 7.6 feet), 2:11 p.m. Thursday, Oct. 29 (about 7.6 feet) and 3:07 p.m. Friday, Oct. 30 (about 7.3 feet) reaching about 7 feet or more at Point Chauncey, the level at which Tiburon Boulevard at Beach Road has flooded before. Greenwood Cove Drive, Cove Road at Cove Place in Belvedere, Strawberry Circle and other low spots could flood around high tide. Don't drive or walk through floodwaters. This is an estimate from NOAA tide predictions and recent Richmond and San Francisco gauge readings, not an official forecast.
PG&E's outage map no longer shows the outage in Tiburon and Belvedere that began at 9:54 p.m. Oct. 27; power should be back.
PG&E reports 98 customers without power in Tiburon and Belvedere since 9:54 p.m. Oct. 27.
ROAD CLOSED: Larkspur Plaza Dr at Creekside Dr AND Lucky Dr near Fifer Ave are closed for the next several hours due to flooding. Avoid these areas and use an alternate route. Do not drive through flooded roads. Updates: Emergency.MarinCounty.gov.
AlertMarin sent this to the peninsula; the incident itself may be elsewhere in Marin.
The National Weather Service's coastal flood advisory is in effect until 5 p.m. Oct. 30. Up to 2.1 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. Our estimate shows the high tides at 12:43 p.m. Tuesday, Oct. 27 (about 7.8 feet), 1:24 p.m. Wednesday, Oct. 28 (about 7.6 feet) and 2:11 p.m. Thursday, Oct. 29 (about 7.4 feet) reaching about 7 feet or more at Point Chauncey, the level at which Tiburon Boulevard at Beach Road has flooded before. Greenwood Cove Drive, Cove Road at Cove Place in Belvedere, Strawberry Circle and other low spots could flood around high tide. Don't drive or walk through floodwaters. This is an estimate from NOAA tide predictions and recent Richmond and San Francisco gauge readings, not an official forecast. AlertMarin relayed the advisory at 1:27 p.m. Oct. 26.
The National Weather Service's coastal flood advisory is in effect until 3 p.m. Oct. 29. Up to 1.9ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. Our estimate shows the high tides at 11:35 a.m. Sunday, Oct. 25 (about 7.2 feet), 12:07 p.m. Monday, Oct. 26 (about 7.3 feet) and 12:43 p.m. Tuesday, Oct. 27 (about 7.5 feet) reaching about 7 feet or more at Point Chauncey, the level at which Tiburon Boulevard at Beach Road has flooded before. Greenwood Cove Drive, Cove Road at Cove Place in Belvedere, Strawberry Circle and other low spots could flood around high tide. Don't drive or walk through floodwaters. This is an estimate from NOAA tide predictions and recent Richmond and San Francisco gauge readings, not an official forecast. AlertMarin relayed the advisory at 12:27 p.m. Oct. 24.
Point Chauncey, off Tiburon, has had no tide gauge since 1993. We take NOAA's predicted high tide there and add how far water has been running above or below predictions at the Richmond and San Francisco gauges over the last two days, weighted toward Richmond, the closer gauge. When the past week's readings are rising, we carry that trend forward a little; when the National Weather Service forecasts a surge, we use its number for that day. A high tide flagged at about 7 feet or more, near the lowest level at which Tiburon Boulevard at Beach Road has flooded on record, is when Greenwood Cove Drive, Cove Road at Cove Place in Belvedere, Strawberry Circle and other low spots could flood. It's an estimate, not an official forecast, and it can't see wind piling water into Richardson Bay or waves.
This page updates itself; last checked 2:23 a.m. Oct. 29. Times are Pacific. Our flood forecast is an estimate from NOAA tide predictions and the Richmond and San Francisco gauges, not an official forecast. In an emergency, call 911.
