Blue Flower

Flooding: Massachusetts

Current Hydrologic Alerts for Massachusetts provided by the National Weather Service - Advanced Hydrologic Prediction Service
Massachusetts - Current Hydrologic Observations - NWS AHPS

  1. Action (12 ft) - Alert - SESM3 - Atlantic Coast at Dennis Sesuit Harbor (IN MLLW) (Massachusetts)

    Flood Categories

    Primary (ft)

    • Action : 12 ft
    • Minor : 13 ft
    • Moderate : 14.5 ft
    • Major : 16 ft

    Secondary (kcfs)

    • Action : Not Set
    • Minor : Not Set
    • Moderate : Not Set
    • Major : Not Set

    The forecast flood categories are the same as the observation flood categories.

    Gauge Data

    Observations

    Latest Observation Category: Normal
    Latest Observation: 0.8 ft
    Latest Observation (Secondary): -999 kcfs
    Observation Time: Mar 25, 2023 09:00 PM -0400

    Forecasts

    Forecast Issued: Mar 25, 2023 04:09 PM -0400

    Recent

    Recent Category: Normal
    Recent Projected Forecast Available: 1.7 ft
    Recent Projected Forecast Available (Secondary): -999 kcfs
    Recent Projected Forecast Time: Mar 25, 2023 10:00 PM -0400

    Highest

    Highest Category: Action
    Highest Projected Forecast Available: 12 ft
    Highest Projected Forecast Available (Secondary): -999 kcfs
    Highest Projected Forecast Time: Mar 26, 2023 03:00 AM -0400

    Last

    Last Category: Normal
    Last Projected Forecast Available: 5.8 ft
    Last Projected Forecast Available (Secondary): -999 kcfs
    Last Projected Forecast Time: Mar 28, 2023 03:00 PM -0400


  2. Action (11.1 ft) - Alert - SCTM3 - Massachusetts Bay at Scituate (IN MLLW) (Massachusetts)

    Flood Categories

    Primary (ft)

    • Action : 11 ft
    • Minor : 11.5 ft
    • Moderate : 13.5 ft
    • Major : 15.5 ft

    Flow (secondary) data is not currently enabled for this gauge.

    The forecast flood categories are the same as the observation flood categories.

    Gauge Data

    Observations

    Latest Observation Category: Normal
    Latest Observation: 1.02 ft
    Observation Time: Mar 25, 2023 08:35 PM -0400

    Forecasts

    Forecast Issued: Mar 25, 2023 04:09 PM -0400

    Recent

    Recent Category: Normal
    Recent Projected Forecast Available: 2 ft
    Recent Projected Forecast Time: Mar 25, 2023 10:00 PM -0400

    Highest

    Highest Category: Action
    Highest Projected Forecast Available: 11.1 ft
    Highest Projected Forecast Time: Mar 26, 2023 03:00 AM -0400

    Last

    Last Category: Normal
    Last Projected Forecast Available: 5.6 ft
    Last Projected Forecast Time: Mar 28, 2023 03:00 PM -0400


  3. Action (4.2 ft) - Alert - NTKM3 - Nantucket Harbor at Nantucket (IN MLLW) (Massachusetts)

    Flood Categories

    Primary (ft)

    • Action : 4 ft
    • Minor : 5 ft
    • Moderate : 6.5 ft
    • Major : 8 ft

    Secondary (kcfs)

    • Action : Not Set
    • Minor : Not Set
    • Moderate : Not Set
    • Major : Not Set

    The forecast flood categories are the same as the observation flood categories.

    Gauge Data

    Observations

    Latest Observation Category: Normal
    Latest Observation: 1.22 ft
    Latest Observation (Secondary): -999 kcfs
    Observation Time: Mar 25, 2023 09:06 PM -0400

    Forecasts

    Forecast Issued: Mar 25, 2023 04:09 PM -0400

    Recent

    Recent Category: Normal
    Recent Projected Forecast Available: 1.4 ft
    Recent Projected Forecast Available (Secondary): -999 kcfs
    Recent Projected Forecast Time: Mar 25, 2023 10:00 PM -0400

    Highest

    Highest Category: Action
    Highest Projected Forecast Available: 4.2 ft
    Highest Projected Forecast Available (Secondary): -999 kcfs
    Highest Projected Forecast Time: Mar 26, 2023 04:00 AM -0400

    Last

    Last Category: Normal
    Last Projected Forecast Available: 1.5 ft
    Last Projected Forecast Available (Secondary): -999 kcfs
    Last Projected Forecast Time: Mar 28, 2023 03:00 PM -0400


  4. Action (11.2 ft) - Alert - GLCM3 - Atlantic Coast at Gloucester (IN MLLW) (Massachusetts)

    Flood Categories

    Primary (ft)

    • Action : 11 ft
    • Minor : 11.5 ft
    • Moderate : 13 ft
    • Major : 15 ft

    Flow (secondary) data is not currently enabled for this gauge.

    The forecast flood categories are the same as the observation flood categories.

    Gauge Data

    Observations

    Latest Observation Category: Normal
    Latest Observation: 0.72 ft
    Observation Time: Mar 25, 2023 09:00 PM -0400

    Forecasts

    Forecast Issued: Mar 25, 2023 04:09 PM -0400

    Recent

    Recent Category: Normal
    Recent Projected Forecast Available: 2.2 ft
    Recent Projected Forecast Time: Mar 25, 2023 10:00 PM -0400

    Highest

    Highest Category: Action
    Highest Projected Forecast Available: 11.2 ft
    Highest Projected Forecast Time: Mar 26, 2023 03:00 AM -0400

    Last

    Last Category: Normal
    Last Projected Forecast Available: 5.7 ft
    Last Projected Forecast Time: Mar 28, 2023 03:00 PM -0400


  5. Action (6.2 ft) - Alert - FRVM3 - Mount Hope Bay at Fall River (IN MLLW) (Massachusetts)

    Flood Categories

    Primary (ft)

    • Action : 6 ft
    • Minor : 7 ft
    • Moderate : 9.5 ft
    • Major : 12 ft

    Flow (secondary) data is not currently enabled for this gauge.

    The forecast flood categories are the same as the observation flood categories.

    Gauge Data

    Observations

    Latest Observation Category: Normal
    Latest Observation: 3.98 ft
    Observation Time: Mar 25, 2023 09:06 PM -0400

    Forecasts

    Forecast Issued: Mar 25, 2023 04:09 PM -0400

    Recent

    Recent Category: Normal
    Recent Projected Forecast Available: 4.8 ft
    Recent Projected Forecast Time: Mar 25, 2023 10:00 PM -0400

    Highest

    Highest Category: Action
    Highest Projected Forecast Available: 6.2 ft
    Highest Projected Forecast Time: Mar 26, 2023 12:00 AM -0400

    Last

    Last Category: Normal
    Last Projected Forecast Available: 3.9 ft
    Last Projected Forecast Time: Mar 28, 2023 03:00 PM -0400