Station List

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: 3.9 m above mean sea level
Air temp height: 2.1 m above site elevation
Anemometer height: 7.6 m above site elevation
Barometer elevation: 4.9 m above mean sea level
Sea temp depth: 2.5 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

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)
Station CASM1

Conditions at CASM1 as of
(11:30 pm EDT on 03/23/2026)
0330 GMT on 03/24/2026:
     

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): 30.6 °F
5-day plot - Water Temperature Water Temperature (WTMP): 36.9 °F
NOS Water Level Observation Network Water Level
Previous observations
TIME
(EDT)		 5-day plot - Wind Direction
WDIR
 		 5-day plot - Wind Speed
WSPD
kts		 5-day plot - Wind Gust
GST
kts		 5-day plot - Wave Height
WVHT
ft		 5-day plot - Dominant Wave Period
DPD
sec		 5-day plot - Average Wave Period
APD
sec		 5-day plot - Mean Wave Direction
MWD
 		 5-day plot - Atmospheric Pressure
PRES
in		 5-day plot - Pressure Tendency
PTDY
in		 5-day plot - Air Temperature
ATMP
°F		 5-day plot - Water Temperature
WTMP
°F		 5-day plot - Dew Point
DEWP
°F		 5-day plot - Salinity
SAL
psu		 5-day plot - Visibility
VIS
nmi		 5-day plot - Tide (above MLLW)
TIDE
ft
2026-03-23 11:24 pm--------- 30.7 36.9----
2026-03-23 11:18 pm N 8.0 11.1----30.07-- 36.9----
2026-03-23 11:12 pm N 8.9 11.1----30.07-- 37.0----
2026-03-23 11:06 pm N 8.9 12.0----30.07-- 37.0----
2026-03-23 11:00 pm N 8.0 12.0----30.07+0.06 30.7 37.0----
2026-03-23 10:54 pm N 7.0 8.9----30.07- 30.7 36.9----
2026-03-23 10:48 pm N 8.9 12.0----30.06-------
2026-03-23 10:42 pm N 8.9 13.0----30.06-------
2026-03-23 10:36 pm N 8.0 11.1----30.06-------
2026-03-23 10:30 pm N 8.0 11.1----30.06-- 36.9----
2026-03-23 10:24 pm N 8.0 11.1----30.06-- 37.0----
2026-03-23 10:18 pm N 7.0 11.1----30.06-- 36.9----
2026-03-23 10:12 pm N 7.0 12.0----30.06-- 36.9----
2026-03-23 10:06 pm N 8.0 13.0----30.06-- 36.9----
2026-03-23 10:00 pm N 8.9 14.0------- 37.0----
2026-03-23 09:54 pmNNE 12.0 15.0------- 37.0----
2026-03-23 09:48 pm N 8.9 15.0----30.05-------
2026-03-23 09:42 pm N 15.0 18.1----30.04-------
2026-03-23 09:36 pm N 8.0 11.1----30.05-------
2026-03-23 09:30 pm N 8.9 13.0----30.04- 31.5 37.0----
2026-03-23 09:24 pm N 5.1 8.9----30.04- 31.6 37.0----
2026-03-23 09:18 pm N 6.0 8.9----30.04-- 37.0----
2026-03-23 09:12 pm N 7.0 9.9----30.04-- 37.0----
2026-03-23 09:06 pm N 6.0 8.9----30.04-- 37.0----
2026-03-23 09:00 pm N 6.0 8.9----30.03+0.07 31.6 37.0----
2026-03-23 08:54 pm N 6.0 11.1----30.03- 31.6 37.0----
2026-03-23 08:48 pm N 6.0 11.1----30.03-- 37.0----
2026-03-23 08:42 pm N 7.0 9.9----30.03-- 37.0----
2026-03-23 08:36 pm N 6.0 8.0----30.03-- 37.0----
2026-03-23 08:30 pm N 8.0 11.1----30.02-- 37.0----
2026-03-23 08:24 pm N 4.1 8.0----30.02-- 37.0----
2026-03-23 08:18 pm N 7.0 8.9----30.02-------
2026-03-23 08:12 pmNNW 5.1 8.0----30.01-------
2026-03-23 08:06 pmNNW 4.1 8.0----30.01-------
2026-03-23 08:00 pmNNW 7.0 9.9----30.01+0.07 31.6 37.0----
2026-03-23 07:54 pmNNW 5.1 7.0----30.01- 31.8 37.0----
2026-03-23 07:48 pm N 8.0 11.1------------
2026-03-23 07:42 pm N 8.9 11.1------------
2026-03-23 07:36 pm N 8.9 13.0------------
2026-03-23 07:30 pm N 8.9 12.0------------
2026-03-23 07:24 pm N 7.0 9.9------------
2026-03-23 07:18 pm N 8.0 12.0----29.99-- 37.0----
2026-03-23 07:00 pm N 5.1 8.0----29.98+0.07 32.2 37.0----
2026-03-23 06:54 pm N 6.0 12.0----29.98- 32.2 37.0----
2026-03-23 06:48 pm N 8.0 11.1----29.98-- 37.0----
2026-03-23 06:42 pm N 8.9 11.1----29.97-- 37.2----
2026-03-23 06:36 pm N 8.0 9.9----29.97-- 37.2----
2026-03-23 06:30 pm N 8.0 9.9----29.97- 32.5 37.2----
2026-03-23 06:24 pm N 7.0 11.1----29.97- 32.7 37.2----
2026-03-23 06:18 pm N 8.9 13.0----29.96-- 37.2----
2026-03-23 06:12 pmNNW 7.0 9.9----29.96-- 37.2----
2026-03-23 06:06 pm N 7.0 9.9----29.96-- 37.2----
2026-03-23 06:00 pm N 5.1 9.9----29.96+0.05 32.7 37.2----
2026-03-23 05:54 pm N 6.0 11.1----29.96- 32.5 37.2----
2026-03-23 05:48 pmNNW 7.0 12.0------------
2026-03-23 05:42 pm N 8.9 15.0------------
2026-03-23 05:36 pm N 12.0 14.0------------
2026-03-23 05:30 pm N 11.1 15.0----29.95- 32.4 37.2----
2026-03-23 05:24 pm N 9.9 14.0----29.95- 32.4 37.2----
2026-03-23 05:18 pm N 6.0 11.1----29.95-------
2026-03-23 05:12 pm N 7.0 11.1----29.94-------
2026-03-23 05:06 pm N 7.0 11.1----29.94-------
2026-03-23 05:00 pm N 7.0 12.0----29.93+0.06------
2026-03-23 04:54 pm N 9.9 13.0----29.93-------
2026-03-23 04:48 pm N 9.9 14.0----29.93-------
2026-03-23 04:42 pm N 13.0 19.0----29.93-------
2026-03-23 04:36 pm N 11.1 14.0----29.93-------
2026-03-23 04:30 pm N 9.9 13.0----29.92- 33.1 37.2----
2026-03-23 04:24 pm N 8.9 13.0----29.92- 33.1 37.2----
2026-03-23 04:18 pm N 8.9 13.0----29.91-- 37.2----
2026-03-23 04:12 pm N 9.9 13.0----29.91-- 37.2----
2026-03-23 04:06 pm N 8.9 13.0----29.91-- 37.2----
2026-03-23 04:00 pm N 8.0 13.0----29.91+0.06 32.9 37.2----
2026-03-23 03:54 pm N 8.9 12.0----29.91- 32.9 37.2----
2026-03-23 03:48 pm N 9.9 12.0------------
2026-03-23 03:42 pm N 9.9 14.0------------
2026-03-23 03:36 pm N 9.9 12.0------------
2026-03-23 03:30 pm N 8.0 9.9----29.91- 32.7 37.2----
2026-03-23 03:24 pm N 7.0 13.0----29.91- 32.9 37.2----
2026-03-23 03:18 pm N 9.9 13.0----29.90-------
2026-03-23 03:12 pmNNW 8.9 11.1----29.91-------
2026-03-23 03:06 pmNNW 7.0 11.1----29.91-------
2026-03-23 03:00 pm N 6.0 12.0----29.91+0.04 33.1 37.2----
2026-03-23 02:54 pmNNW 8.0 12.0----29.90- 32.9 37.2----
2026-03-23 02:48 pm N 9.9 13.0------------
2026-03-23 02:42 pm N 9.9 15.9------------
2026-03-23 02:36 pm N 8.9 15.9------------
2026-03-23 02:30 pm N 9.9 15.0----29.88- 32.9 37.2----
2026-03-23 02:24 pm N 9.9 17.1----29.88- 33.1 37.2----
2026-03-23 02:18 pm N 12.0 14.0----29.87-- 37.2----
2026-03-23 02:12 pm N 8.0 11.1----29.88-- 37.2----
2026-03-23 02:06 pmNNW 8.9 12.0----29.88-- 37.2----
2026-03-23 02:00 pm N 9.9 13.0----29.88+0.00 33.3 37.2----
2026-03-23 01:54 pm N 9.9 13.0----29.88- 33.3 37.2----
2026-03-23 01:48 pm N 9.9 13.0------------
2026-03-23 01:42 pm N 11.1 15.9------------
2026-03-23 01:36 pm N 8.9 14.0------------
2026-03-23 01:30 pm N 11.1 15.0----29.88- 33.1 37.2----
2026-03-23 01:24 pm N 12.0 18.1----29.88- 33.1 37.0----
2026-03-23 01:18 pm N 12.0 17.1----29.88-------
2026-03-23 01:12 pm N 11.1 18.1----29.87-------
2026-03-23 01:06 pm N 11.1 15.9----29.86-------
2026-03-23 01:00 pm N 14.0 20.0----29.85-0.03 32.9 37.0----
2026-03-23 12:54 pm N 15.0 18.1----29.85- 32.9 37.0----
2026-03-23 12:48 pm N 13.0 15.9----29.85-- 37.0----
2026-03-23 12:42 pm N 11.1 15.9----29.86-- 37.0----
2026-03-23 12:36 pm N 12.0 15.9----29.87-- 37.0----
2026-03-23 12:30 pm N 11.1 15.0----29.87- 32.7 37.0----
2026-03-23 12:24 pm N 8.9 18.1----29.87- 32.9 37.0----
2026-03-23 12:18 pm N 11.1 15.0----29.87-------
2026-03-23 12:12 pm N 11.1 15.9----29.87-------
2026-03-23 12:06 pm N 8.9 14.0----29.87-------
2026-03-23 12:00 pm N 9.9 15.0----29.87+0.00------
2026-03-23 11:54 am N 9.9 15.9----29.87-------
2026-03-23 11:48 am N 12.0 15.0----29.87-- 37.0----
2026-03-23 11:42 am N 11.1 15.0----29.88-- 37.0----
2026-03-23 11:36 am N 12.0 19.0----29.88-- 37.0----
2026-03-23 11:30 am N 11.1 14.0------- 37.0----
2026-03-23 11:24 am N 11.1 15.0------- 37.0----
2026-03-23 11:18 am N 9.9 15.0----29.88-- 37.0----
2026-03-23 11:12 am N 8.9 14.0----29.88-- 37.0----
2026-03-23 11:06 am N 11.1 14.0----29.88-- 37.0----
2026-03-23 11:00 am N 13.0 18.1----29.88+0.02 32.0 37.0----
2026-03-23 10:54 am N 12.0 17.1----29.88- 32.0 37.0----
2026-03-23 10:48 am N 9.9 17.1----29.88-------
2026-03-23 10:42 am N 11.1 15.0----29.88-------
2026-03-23 10:36 am N 12.0 15.9----29.88-------
2026-03-23 10:30 am N 11.1 15.0----29.88- 31.8 37.0----
2026-03-23 10:24 am N 8.9 15.0----29.88- 31.8 37.0----
2026-03-23 10:18 am N 9.9 15.9----29.88-------
2026-03-23 10:12 am N 11.1 15.0----29.88-------
2026-03-23 10:06 am N 9.9 15.9----29.88-------
2026-03-23 10:00 am N 9.9 13.0----29.88+0.03 31.8 37.0----
2026-03-23 09:54 am N 11.1 15.9----29.88- 31.8 37.0----
2026-03-23 09:48 am N 11.1 15.9------------
2026-03-23 09:42 am N 9.9 14.0------------
2026-03-23 09:36 am N 13.0 15.9------------
2026-03-23 09:30 am N 11.1 15.9----29.87- 31.8 37.0----
2026-03-23 09:24 am N 11.1 15.9----29.87- 31.6 37.0----
2026-03-23 09:18 am N 11.1 15.9----29.86-- 37.0----
2026-03-23 09:12 am N 9.9 15.9----29.86-- 37.0----
2026-03-23 09:06 am N 11.1 14.0----29.86-- 37.0----
2026-03-23 09:00 am N 11.1 15.9----29.86+0.02 31.6 37.0----
2026-03-23 08:54 am N 9.9 14.0----29.86- 31.5 37.0----
2026-03-23 08:48 am N 9.9 15.0----29.86-- 37.0----
2026-03-23 08:42 am N 9.9 13.0----29.86-- 37.0----
2026-03-23 08:36 am N 8.9 13.0----29.87-- 37.0----
2026-03-23 08:30 am N 9.9 14.0----29.86- 31.5 37.0----
2026-03-23 08:24 am N 9.9 15.0----29.86- 31.3 37.0----
2026-03-23 08:18 am N 9.9 15.0------------
2026-03-23 08:12 am N 12.0 15.0------------
2026-03-23 08:06 am N 11.1 15.9------------
2026-03-23 08:00 am N 11.1 17.1----29.87+0.02 31.1 37.0----
2026-03-23 07:54 am N 11.1 15.9----29.86- 31.1 37.0----
2026-03-23 07:48 am N 11.1 15.9------- 37.0----
2026-03-23 07:42 am N 11.1 15.9------- 37.0----
2026-03-23 07:36 am N 11.1 14.0------- 37.0----
2026-03-23 07:30 am N 11.1 15.0----29.86- 31.5 37.0----
2026-03-23 07:24 am N 11.1 15.9----29.86- 31.3 37.0----
2026-03-23 07:18 am N 12.0 15.9----29.86-------
2026-03-23 07:12 am N 11.1 15.0----29.85-------
2026-03-23 07:06 am N 13.0 15.0----29.85-------
2026-03-23 07:00 am N 11.1 15.9----29.86+0.04 31.3 37.0----
2026-03-23 06:54 am N 9.9 17.1----29.85- 31.5 37.2----
2026-03-23 06:48 am N 11.1 15.9----29.85-- 37.2----
2026-03-23 06:42 am N 11.1 15.9----29.85-- 37.2----
2026-03-23 06:36 am N 12.0 18.1----29.85-- 37.2----
2026-03-23 06:30 am N 9.9 15.9----29.85- 31.5 37.2----
2026-03-23 06:24 am N 9.9 14.0----29.85- 31.5 37.2----
2026-03-23 06:18 am N 11.1 15.0----29.85-- 37.2----
2026-03-23 06:12 am N 11.1 15.9----29.84-- 37.2----
2026-03-23 06:06 am N 8.9 13.0----29.85-- 37.2----
2026-03-23 06:00 am N 11.1 14.0----29.85+0.02 31.6 37.2----
2026-03-23 05:54 am N 11.1 15.0----29.84- 31.6 37.2----
2026-03-23 05:48 am N 11.1 13.0----29.84-- 37.4----
2026-03-23 05:42 am N 9.9 15.0----29.84-- 37.4----
2026-03-23 05:36 am N 9.9 15.0----29.84-- 37.4----
2026-03-23 05:30 am N 9.9 14.0----29.84- 31.6 37.4----
2026-03-23 05:24 am N 8.9 12.0----29.85- 31.6 37.4----
2026-03-23 05:18 am N 9.9 12.0----29.84-- 37.4----
2026-03-23 05:12 am N 7.0 11.1----29.85-- 37.4----
2026-03-23 05:06 am N 8.9 13.0----29.84-- 37.4----
2026-03-23 05:00 am N 8.9 11.1----29.84+0.01 31.5 37.4----
2026-03-23 04:54 am N 8.0 12.0----29.84- 31.5 37.4----
2026-03-23 04:48 am N 8.9 13.0----29.84-- 37.4----
2026-03-23 04:42 am N 9.9 13.0----29.84-- 37.4----
2026-03-23 04:36 am N 9.9 14.0----29.84-- 37.4----
2026-03-23 04:30 am N 8.0 12.0----29.84- 31.8 37.4----
2026-03-23 04:24 am N 9.9 12.0----29.84- 32.0 37.4----
2026-03-23 04:18 am N 9.9 13.0----29.83- 32.2 37.4----
2026-03-23 04:12 am N 9.9 13.0----29.83- 32.2 37.4----
2026-03-23 04:06 am N 8.0 12.0----29.83- 32.2 37.4----
2026-03-23 04:00 am N 8.0 12.0----29.82-0.01 32.4 37.4----
2026-03-23 03:54 am N 8.9 12.0----29.82- 32.4 37.4----
2026-03-23 03:48 am N 8.9 13.0----29.82- 32.4 37.4----
2026-03-23 03:42 am N 8.0 13.0----29.83- 32.2 37.4----
2026-03-23 03:36 am N 8.0 11.1----29.83- 32.4 37.4----
2026-03-23 03:30 am N 8.0 12.0----29.83- 32.4 37.4----
2026-03-23 03:24 am N 8.9 12.0----29.83- 32.4 37.4----
2026-03-23 03:18 am N 8.9 15.0----29.83-- 37.4----
2026-03-23 03:12 am N 11.1 14.0----29.83-- 37.4----
2026-03-23 03:06 am N 8.0 14.0----29.83-- 37.4----
2026-03-23 03:00 am N 9.9 14.0----29.83-0.01 32.5 37.4----
2026-03-23 02:54 am N 8.9 14.0----29.82- 32.5 37.4----
2026-03-23 02:48 am N 8.9 11.1----29.83-- 37.4----
2026-03-23 02:42 am N 8.9 13.0----29.83-- 37.4----
2026-03-23 02:36 am N 8.9 13.0----29.84-- 37.4----
2026-03-23 02:30 am N 8.0 13.0----29.84- 32.7 37.4----
2026-03-23 02:24 am N 8.9 13.0----29.84- 32.5 37.4----
2026-03-23 02:18 am N 9.9 15.0----29.84-- 37.4----
2026-03-23 02:12 am N 11.1 14.0----29.83-- 37.4----
2026-03-23 02:06 am N 11.1 15.0----29.83-- 37.4----
2026-03-23 02:00 am N 9.9 12.0----29.83+0.01 32.7 37.4----
2026-03-23 01:54 am N 8.9 13.0----29.85- 32.5 37.4----
2026-03-23 01:48 am N 11.1 14.0----29.83-------
2026-03-23 01:42 am N 8.9 11.1----29.83-------
2026-03-23 01:36 am N 9.9 12.0----29.83-------
2026-03-23 01:30 am N 9.9 14.0----29.82- 32.9 37.4----
2026-03-23 01:24 am N 11.1 13.0----29.82- 32.9 37.4----
2026-03-23 01:18 am N 11.1 14.0----29.83-- 37.4----
2026-03-23 01:12 am N 9.9 12.0----29.83-- 37.4----
2026-03-23 01:06 am N 8.0 13.0----29.83-- 37.4----
2026-03-23 01:00 am N 8.9 13.0----29.83+0.02 33.1 37.4----
2026-03-23 12:54 am N 8.9 14.0----29.83- 33.3 37.4----
2026-03-23 12:48 am N 8.9 13.0----29.83-- 37.4----
2026-03-23 12:42 am N 8.9 13.0----29.83-- 37.4----
2026-03-23 12:36 am N 8.0 12.0----29.84-- 37.4----
2026-03-23 12:30 am N 8.0 12.0----29.84- 33.4 37.4----
2026-03-23 12:24 am N 8.9 11.1----29.85- 33.4 37.4----
2026-03-23 12:18 am N 8.9 12.0----29.85-- 37.4----
2026-03-23 12:12 am N 8.0 13.0----29.85-- 37.4----
2026-03-23 12:06 am N 8.0 13.0----29.85-- 37.4----
2026-03-23 12:00 am N 8.9 14.0----29.84+0.06 33.8 37.4----
2026-03-22 11:54 pm N 8.9 14.0----29.84- 34.0 37.4----