Lexington Weather

Lexington, Massachusetts, USA

52°F
10/27/2026 12:08pm 
  • Lexington Conditions: Clear
  • Temperature: 52.0°F / 11.1°CWarmer 2.5°F than last hour.
  • Dew Point: 34.3°FIncreased 1.2°Fsince last hour.
  • Relative Humidity: 51%Decreased 2.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 30.32 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Coastal Flood Advisory

Issued by the National Weather Service - San Francisco Bay Area, CA

    COASTAL FLOOD ADVISORY  

Coastal Flood Advisory issued October 27 at 5:41AM PDT until October 30 at 5:00PM PDT by NWS San Francisco CA

COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT FRIDAY

Areas Affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast

Urgency: Expected

Severity: Minor

Certainty: Likely

Alert Sent: Tuesday 5:41am PDT

Alert Effective: Tuesday 5:41am PDT

Alert Expires: Tuesday 3:00pm PDT (expect updated alert by this time)

Event Onset: Tuesday 5:41am PDT

Event Ends: Friday 5:00pm PDT

Issued by: NWS San Francisco CA

Details: 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT FRIDAY...

* WHAT...Up to 2.1 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal
waterways.

* WHERE...Bay Shoreline locations of San Pablo Bay, San
Francisco Bay, and Monterey Bay.

* WHEN...Until 5 PM PDT Friday.

* IMPACTS...High tides will result in flooding of low-lying
infrastructure, isolated road closures, and coastal erosion.
Rising tides will bring water and waves farther up the beach
than normal, restricting escape from beaches and coastal
areas. More substantial impacts are expected along bayshore
Marin County where increased flooding is anticipated across
low lying areas.

* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high
tide is expected to be 2.1 ft above normal (7.9 ft MLLW) at
12:15 PM Tuesday 10/27, 1.9 ft above normal (7.7 ft MLLW) at
12:56 PM Wednesday 10/28, 1.7 ft above normal (7.5 ft MLLW) at
01:43 PM Thursday 10/29, and 1.6 ft above normal (7.4 ft MLLW)
at 02:39 PM Friday 10/30. These predictions include up to 1.2
ft of surge that will enhance the astronomical tide and
flooding threat. High tide varies up to 90 minutes earlier or
later along the Pacific Coast and through the San Francisco
Bay, respectively.

Information: 
If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.96c7ca5f0858b0685396dce5ef16f7bde90e569d.001.1
Codes: CAZ006, CAZ506, CAZ508, CAZ529, CAZ530
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.96c7ca5f0858b0685396dce5ef16f7bde90e569d.001.1