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Public Information Statement
National Weather Service Caribou ME
218 PM EDT Fri Jul 11 2025

To:    Subscribers:
       -Family of Services
       -NOAA Weather Wire Service
       -Emergency Managers Weather Information Network
       -Other NWS partners, users, and NWS employees

From:  Patrick Maloit
       Meteorologist in Charge
       Weather Forecast Office Caribou, ME

Subject:   Changes to Coastal Tidal Gage Flood Stages

Effective at 1800 Coordinated Universal Time on Monday, August
18, 2025, the National Weather Service will make the following
changes to tidal gages along the Maine Downeast coast in all our
coastal products including the National Water Prediction Service
(NWPS). The NWS location identifiers that are impacted are ATGM1,
MCSM1, CFWM1 and PSBM1. These changes and establishing of flood
stages at all 4 sites were made in coordination with local
emergency managers, review of the current flood stages, along with
information from the 2024 coastal flood event, high resolution
lidar mapping and historical flood accounts.

Bar Harbor (ATGM1) Previous Flood Stages
Stages are in Mean Low Low Water (MLLW)
Action Stage: 14.5 Feet
Minor Flood Stage: 14.8 Feet
Moderate Flood Stage: 16.5 Feet
Major Flood Stage: 18 Feet

Bar Harbor (ATGM1) New Flood Stages
Stages are in Mean Low Low Water (MLLW)
Action Stage: 14.5 Feet
Minor Flood Stage: 15 Feet
Moderate Flood Stage: 17 Feet
Major Flood Stage: 18 Feet

Machias (MCSM1) New Flood Stages
Stages are in Mean Low Low Water (MLLW)
Action Stage: 16.5 Feet
Minor Flood Stage: 17 Feet
Moderate Flood Stage: 18 Feet
Major Flood Stage: 19 Feet

Cutler (CFWM1) Previous Flood Stages
Stages are in Mean Low Low Water (MLLW)
Action Stage: 17 Feet
Minor Flood Stage: 18 Feet
Moderate Flood Stage: 19 Feet
Major Flood Stage: 21 Feet

Cutler (CFWM1) New Flood Stages
Stages are in Mean Low Low Water (MLLW)
Action Stage: 17.5 Feet
Minor Flood Stage: 18 Feet
Moderate Flood Stage: 19 Feet
Major Flood Stage: 21 Feet

Eastport (PSBM1) Previous Flood Stages
Stages are in Mean Low Low Water (MLLW)
Action Stage: 22 Feet
Minor Flood Stage: 23 Feet
Moderate Flood Stage: 24 Feet
Major Flood Stage: 25 Feet

Eastport (PSBM1) New Flood Stages
Stages are in Mean Low Low Water (MLLW)
Action Stage: 21.5 Feet
Minor Flood Stage: 22 Feet
Moderate Flood Stage: 24 Feet
Major Flood Stage: 25 Feet

Helpful Links
National Water Prediction Service (NWPS): https://water.noaa.gov/wfo/car
Coastal Flood Threat Display: https://www.weather.gov/erh/coastalflood?wfo=car

For more information, please contact:
James Sinko - Meteorologist
Hydrology Program Manager
NWS Weather Forecast Office
Caribou, ME 04736
(207) 492-0182
James.Sinko@noaa.gov

Louise Fode
Warning Coordination Meteorologist
NWS Weather Forecast Office
Caribou, ME 04736
(207) 492-0182
Louse.Fode@noaa.gov

$$