Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage NDBC Title GraphicClick to go to NDBC home page   Select to go to the NWS homepage
Home About Us Contact Us
 
 
    
    Station List

 Data Access
    Mobile Access
    Classic Maps
         Recent
         DART®
    Obs Search
    Ship Obs Report
    BuoyCAMs
    TAO
    DODS
    OceanSITES
    HF Radar
    OSMC
    Dial-A-Buoy
    RSS Feeds Image indicating link to RSS feed access page
    Web Widget
    Web Data Guide
    Maintenance Schedule
    Station Status Report

 Program Info
    TAO
    DART®
    IOOS®

 Publications
    NDBC PEA
    NDBC FONSI
    NDBC DQC Handbook

 Visitor Information
 
USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.

Station CASM1 - 8418150 - Portland, ME Image indicating link to RSS feed of recent meteorological observations for station CASM1

Owned and maintained by NOAA's National Ocean Service
Water Level Observation Network
43.656 N 70.246 W (43°39'22" N 70°14'46" W)

Site elevation: 3.5 m above mean sea level
Air temp height: 7.5 m above site elevation
Barometer elevation: 4.9 m above mean sea level
Sea temp depth: 3.4 m below MLLW

Caution: Right whales may be active in northeast waters year-round. NOAA may establish temporary Dynamic Management Areas (DMAs) to protect aggregations of right whales. Mariners are requested to transit DMAs at 10 knots or less when consistent with safe navigation. For information on currently active DMAs, go to: http://www.nmfs.noaa.gov/pr/shipstrike 

Latest NWS Marine Forecast

Search And Rescue (SAR) Data

Meteorological Observations from Nearby Stations and Ships Image indicating link to RSS feed of recent meteorological observations near station CASM1

Regional HF Radar Surface Current Observations

Station CASM1
Large icon indicates selected station.
yellow diamond Stations with recent data
red diamond Stations with no data in last 8 hours
     (24 hours for tsunami stations)

Conditions at CASM1 as of
(5:30 am EDT)
0930 GMT on 04/22/2019:
     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.
5-day plot - Air Temperature Air Temperature (ATMP): 45.7 °F
5-day plot - Water Temperature Water Temperature (WTMP): 43.3 °F
NOS Water Level Observation Network Water Level
Previous observations
5-day plot - Wind Direction 5-day plot - Wind Speed 5-day plot - Wind Gust 5-day plot - Wave Height 5-day plot - Dominant Wave Period 5-day plot - Average Period 5-day plot - Mean Wave Direction 5-day plot - Atmospheric Pressure 5-day plot - Pressure Tendency 5-day plot - Air Temperature 5-day plot - Water Temperature 5-day plot - Dew Point 5-day plot - Salinity 5-day plot - Visibility 5-day plot - Tide (above MLLW)
MM DD TIME
(EDT)		 WDIR WSPD
kts		 GST
kts		 WVHT
ft		 DPD
sec		 APD
sec		 MWD PRES
in		 PTDY
in		 ATMP
°F		 WTMP
°F		 DEWP
°F		 SAL
psu		 VIS
nmi		 TIDE
ft
0422 5:24 am--------- 45.7 43.3----
0422 5:18 am--------- 45.5 43.3----
0422 5:12 am--------- 45.3 43.3----
0422 5:06 am--------- 45.1 43.2----
0422 5:00 am--------- 45.0 43.2----
0422 4:54 am--------- 44.8 43.0----
0422 4:48 am--------- 44.6 43.0----
0422 4:42 am--------- 44.6 43.0----
0422 4:36 am--------- 44.4 43.0----
0422 4:30 am--------- 44.4 43.0----
0422 4:24 am--------- 44.6 42.8----
0422 4:18 am--------- 44.4 42.6----
0422 4:12 am--------- 44.6 42.4----
0422 4:06 am--------- 44.4 42.4----
0422 4:00 am--------- 44.6 42.4----
0422 3:54 am--------- 44.6 42.4----
0422 3:48 am--------- 44.8 42.4----
0422 3:42 am--------- 44.8 42.4----
0422 3:36 am--------- 44.8 42.4----
0422 3:30 am--------- 44.8 42.4----
0422 3:24 am--------- 44.6 42.4----
0422 3:18 am--------- 44.6 42.4----
0422 3:12 am--------- 44.4 42.4----
0422 3:06 am--------- 44.4 42.4----
0422 3:00 am--------- 44.2 42.4----
0422 2:54 am--------- 44.2 42.4----
0422 2:48 am--------- 44.1 42.4----
0422 2:42 am--------- 44.1 42.4----
0422 2:36 am--------- 43.9 42.4----
0422 2:30 am--------- 43.9 42.4----
0422 2:24 am--------- 44.1 42.4----
0422 2:18 am--------- 44.1 42.4----
0422 2:12 am--------- 44.1 42.4----
0422 2:06 am--------- 44.1 42.4----
0422 2:00 am--------- 43.7 42.4----
0422 1:54 am--------- 43.7 42.4----
0422 1:48 am---------- 42.6----
0422 1:42 am---------- 42.6----
0422 1:36 am---------- 42.6----
0422 1:30 am--------- 43.5 42.6----
0422 1:24 am--------- 43.3 42.6----
0422 1:18 am---------- 42.6----
0422 1:12 am--------- 43.7 42.6----
0422 1:06 am--------- 43.7 42.6----
0422 1:00 am--------- 43.7 42.6----
042212:54 am--------- 43.7 42.6----
042212:48 am--------- 43.7 42.6----
042212:42 am--------- 43.7 42.6----
042212:36 am--------- 43.7 42.6----
042212:30 am--------- 43.7 42.6----
042212:24 am--------- 43.7 42.6----
042212:18 am--------- 43.9 42.6----
042212:12 am--------- 44.1 42.8----
042212:06 am--------- 43.9 42.8----
042212:00 am--------- 43.7 42.8----
042111:54 pm--------- 43.7 42.8----
042111:48 pm--------- 43.7 42.8----
042111:42 pm--------- 43.9 42.8----
042111:36 pm--------- 44.1 42.8----
042111:30 pm--------- 44.4 43.0----
042111:24 pm--------- 44.2 42.8----
042111:18 pm--------- 44.4 43.0----
042111:12 pm--------- 44.6 43.0----
042111:06 pm--------- 44.6 43.2----
042111:00 pm--------- 44.4 43.2----
042110:54 pm--------- 44.4 43.0----
042110:48 pm--------- 44.4 43.0----
042110:42 pm--------- 44.4 43.0----
042110:36 pm--------- 44.4 43.2----
042110:30 pm--------- 44.6 43.2----
042110:24 pm--------- 45.0 43.2----
042110:18 pm--------- 45.0 43.2----
042110:12 pm--------- 45.1 43.3----
042110:06 pm--------- 45.3 43.5----
042110:00 pm--------- 45.5 43.5----
0421 9:54 pm--------- 45.5 43.5----
0421 9:48 pm--------- 45.3 43.9----
0421 9:42 pm--------- 45.1 44.1----
0421 9:36 pm--------- 45.0 44.1----
0421 9:30 pm--------- 45.1 44.1----
0421 9:24 pm--------- 45.0 44.1----
0421 9:18 pm--------- 45.1 44.1----
0421 9:12 pm--------- 45.3 44.1----
0421 9:06 pm--------- 45.3 44.1----
0421 9:00 pm--------- 45.3 44.2----
0421 8:54 pm--------- 45.5 44.2----
0421 8:48 pm--------- 45.5 44.2----
0421 8:42 pm--------- 45.3 44.2----
0421 8:36 pm--------- 45.5 44.2----
0421 8:30 pm--------- 46.2 44.1----
0421 8:24 pm--------- 46.9 43.9----
0421 8:18 pm--------- 46.9 43.9----
0421 8:12 pm--------- 47.1 44.1----
0421 8:06 pm--------- 47.1 44.1----
0421 8:00 pm--------- 47.3 44.1----
0421 7:54 pm--------- 47.3 43.9----
0421 7:48 pm--------- 46.9 44.1----
0421 7:42 pm--------- 46.8 44.1----
0421 7:36 pm--------- 46.6 44.1----
0421 7:30 pm--------- 46.8 44.1----
0421 7:24 pm--------- 47.1 44.1----
0421 7:18 pm--------- 46.9 44.2----
0421 7:12 pm--------- 46.8 44.2----
0421 7:06 pm--------- 46.6 44.2----
0421 7:00 pm--------- 46.4 44.2----
0421 6:54 pm--------- 46.2 44.4----
0421 6:48 pm--------- 46.8 44.4----
0421 6:42 pm--------- 47.5 44.4----
0421 6:36 pm--------- 47.5 44.2----
0421 6:30 pm--------- 47.3 44.2----
0421 6:24 pm--------- 47.3 44.2----
0421 6:18 pm--------- 47.3 44.1----
0421 6:12 pm--------- 46.9 44.1----
0421 6:06 pm--------- 46.9 43.7----
0421 6:00 pm--------- 46.6 43.7----
0421 5:54 pm--------- 46.4 43.5----
0421 5:48 pm--------- 46.0 43.5----
0421 5:42 pm--------- 46.0 43.3----
0421 5:36 pm--------- 46.4 43.3----
0421 5:30 pm--------- 46.8 43.3----
0421 5:24 pm--------- 47.1 43.0----
0421 5:18 pm--------- 47.1 43.0----
0421 5:12 pm--------- 46.9 43.2----
0421 5:06 pm--------- 46.9 43.2----
0421 5:00 pm--------- 46.9 43.2----
0421 4:54 pm--------- 46.8 43.2----
0421 4:48 pm--------- 47.3 42.8----
0421 4:42 pm--------- 47.8 42.6----
0421 4:36 pm--------- 47.8 42.6----
0421 4:30 pm--------- 48.4 42.6----
0421 4:24 pm--------- 48.4 42.8----
0421 4:18 pm--------- 48.9 42.6----
0421 4:12 pm--------- 48.4 42.4----
0421 4:06 pm--------- 48.4 42.4----
0421 4:00 pm--------- 48.4 42.6----
0421 3:54 pm--------- 47.8 42.8----
0421 3:48 pm--------- 46.9 42.8----
0421 3:42 pm--------- 46.6 42.6----
0421 3:36 pm--------- 46.9 42.6----
0421 3:30 pm--------- 46.8 42.6----
0421 3:24 pm--------- 47.5 42.4----
0421 3:18 pm--------- 47.3 42.1----
0421 3:12 pm--------- 48.6 42.1----
0421 3:06 pm--------- 47.8 42.3----
0421 3:00 pm--------- 47.3 42.3----
0421 2:54 pm--------- 48.9 42.3----
0421 2:48 pm--------- 47.8 42.3----
0421 2:42 pm--------- 47.5 42.3----
0421 2:36 pm--------- 47.1 42.3----
0421 2:30 pm--------- 47.7 42.1----
0421 2:24 pm--------- 51.3 42.1----
0421 2:18 pm--------- 54.1 42.1----
0421 2:12 pm--------- 54.5 41.9----
0421 2:06 pm--------- 54.7 41.9----
0421 2:00 pm--------- 54.9 41.9----
0421 1:54 pm--------- 54.7 41.9----
0421 1:48 pm--------- 54.7 41.9----
0421 1:42 pm--------- 54.9 42.1----
0421 1:36 pm--------- 54.3 42.1----
0421 1:30 pm--------- 52.5 42.3----
0421 1:24 pm--------- 48.9 42.3----
0421 1:18 pm--------- 48.7 42.3----
0421 1:12 pm--------- 49.8 42.3----
0421 1:06 pm--------- 48.2 42.3----
0421 1:00 pm--------- 48.0 42.4----
042112:54 pm--------- 47.8 42.3----
042112:48 pm--------- 47.7 42.1----
042112:42 pm--------- 48.0 41.9----
042112:36 pm--------- 49.6 41.9----
042112:30 pm--------- 49.3 42.1----
042112:24 pm--------- 47.1 42.3----
042112:18 pm--------- 46.8 42.3----
042112:12 pm--------- 46.9 42.4----
042112:06 pm--------- 47.8 42.4----
042112:00 pm--------- 49.6 42.4----
042111:54 am--------- 50.5 42.4----
042111:48 am--------- 51.8 42.4----
042111:42 am--------- 50.0 42.4----
042111:36 am--------- 51.8 42.4----
042111:30 am--------- 52.2 42.6----
042111:24 am--------- 50.9 42.6----
042111:18 am--------- 49.8 42.6----
042111:12 am--------- 49.6 42.6----
042111:06 am--------- 49.6 42.6----
042111:00 am--------- 48.7 42.8----
042110:54 am--------- 48.6 42.8----
042110:48 am--------- 48.6 42.6----
042110:42 am--------- 50.2 42.6----
042110:36 am--------- 50.0 42.6----
042110:30 am--------- 49.6 42.6----
042110:24 am--------- 51.8 42.6----
042110:18 am--------- 51.6 42.6----
042110:12 am--------- 52.3 42.8----
042110:06 am--------- 51.8 42.8----
042110:00 am--------- 54.0 43.0----
0421 9:54 am--------- 53.2 43.0----
0421 9:48 am--------- 52.5 43.2----
0421 9:42 am--------- 52.0 43.2----
0421 9:36 am--------- 52.0 43.3----
0421 9:30 am--------- 51.8 43.3----
0421 9:24 am--------- 51.3 43.3----
0421 9:18 am--------- 51.3 43.5----
0421 9:12 am--------- 51.1 43.3----
0421 9:06 am--------- 50.7 43.5----
0421 9:00 am--------- 50.0 43.5----
0421 8:54 am--------- 49.8 43.5----
0421 8:48 am--------- 49.6 43.3----
0421 8:42 am--------- 49.8 43.5----
0421 8:36 am--------- 49.5 43.5----
0421 8:30 am--------- 49.8 43.5----
0421 8:24 am--------- 50.5 43.7----
0421 8:18 am--------- 50.2 43.7----
0421 8:12 am--------- 49.8 43.7----
0421 8:06 am--------- 49.5 43.7----
0421 8:00 am--------- 49.6 43.7----
0421 7:54 am--------- 49.6 43.5----
0421 7:48 am--------- 49.1 43.5----
0421 7:42 am--------- 48.7 43.5----
0421 7:36 am--------- 48.9 43.5----
0421 7:30 am--------- 48.9 43.3----
0421 7:24 am--------- 49.1 43.0----
0421 7:18 am--------- 49.1 43.0----
0421 7:12 am--------- 49.1 43.0----
0421 7:06 am--------- 49.5 43.0----
0421 7:00 am--------- 49.5 43.0----
0421 6:54 am--------- 49.5 43.2----
0421 6:48 am--------- 49.3 43.2----
0421 6:42 am--------- 49.1 43.2----
0421 6:36 am--------- 49.1 43.2----
0421 6:30 am--------- 49.3 43.2----
0421 6:24 am--------- 49.5 43.2----
0421 6:18 am--------- 49.6 43.2----
0421 6:12 am--------- 49.8 43.0----
0421 6:06 am--------- 49.8 43.0----
0421 6:00 am--------- 49.3 42.8----
0421 5:54 am--------- 49.5 42.8----

Description of Measurements

Links which are specific to this station are listed below:

Real Time Data in tabular form for the last forty-five days.

Historical Data & Climatic Summaries for quality controlled data for the current month, previous months, and previous years.