Hurricane Symbol View the latest observations near Atlantic Tropical Storm Arthur.

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


Conditions at CASM1 as of
(11:00 am EDT)
1500 GMT on 06/17/2026:
     

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 - Wind Direction Wind Direction (WDIR): E ( 90 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 5.1 kts
5-day plot - Wind Gust Wind Gust (GST): 7.0 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):29.80 in
5-day plot - Pressure Tendency Pressure Tendency (PTDY):+0.00 in ( Steady )
5-day plot - Air Temperature Air Temperature (ATMP): 63.0 °F
5-day plot - Water Temperature Water Temperature (WTMP): 56.8 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 5.8 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 5.8 kts
5-day plot -  Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
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
2026-06-17 10:54 am E 7.0 8.0----29.80- 62.4 56.7----
2026-06-17 10:48 am E 6.0 8.0------------
2026-06-17 10:42 amESE 6.0 7.0------------
2026-06-17 10:36 am E 5.1 6.0------------
2026-06-17 10:30 amESE 6.0 6.0----29.80- 62.6 57.4----
2026-06-17 10:24 amESE 5.1 6.0----29.80- 62.8 57.4----
2026-06-17 10:18 amESE 5.1 6.0------------
2026-06-17 10:12 amESE 5.1 6.0------------
2026-06-17 10:06 am E 4.1 5.1------------
2026-06-17 10:00 am E 5.1 5.1----29.80+0.00 62.4 57.9----
2026-06-17 09:54 am E 4.1 5.1----29.80- 62.8 58.1----
2026-06-17 09:48 amENE 4.1 4.1----29.80-------
2026-06-17 09:42 amENE 4.1 4.1----29.80-------
2026-06-17 09:36 am NE 4.1 5.1----29.80-------
2026-06-17 09:30 am NE 2.9 4.1----29.80- 62.6 58.5----
2026-06-17 09:24 amENE 4.1 5.1----29.80- 62.2 58.5----
2026-06-17 09:18 am NE 4.1 4.1----29.80-------
2026-06-17 09:12 amENE 4.1 4.1----29.80-------
2026-06-17 09:06 am NE 4.1 4.1----29.80-------
2026-06-17 09:00 amENE 4.1 4.1----29.80+0.01 62.2 58.1----
2026-06-17 08:54 am NE 2.9 4.1----29.80- 62.2 57.9----
2026-06-17 08:48 amENE 4.1 4.1----29.80-------
2026-06-17 08:42 amENE 2.9 2.9----29.80-------
2026-06-17 08:36 am NE 2.9 4.1----29.80-------
2026-06-17 08:30 am NE 4.1 4.1----29.80- 61.0 58.3----
2026-06-17 08:24 am NE 4.1 4.1----29.80- 60.3 58.1----
2026-06-17 08:18 am NE 4.1 4.1------------
2026-06-17 08:12 amENE 5.1 5.1------------
2026-06-17 08:06 am NE 5.1 5.1------------
2026-06-17 08:00 am NE 4.1 5.1----29.80+0.02 59.5 57.7----
2026-06-17 07:54 am NE 2.9 4.1----29.80- 59.9 57.6----
2026-06-17 07:48 am- 0.0 2.9------------
2026-06-17 07:42 amENE 1.9 2.9------------
2026-06-17 07:36 am- 0.0 1.9------------
2026-06-17 07:30 am NE 1.9 2.9----29.80- 59.2 57.4----
2026-06-17 07:24 am NE 1.9 2.9----29.79- 59.5 57.4----
2026-06-17 07:18 am- 0.0 1.0----29.79-- 57.2----
2026-06-17 07:12 am- 0.0 1.9----29.79-- 57.0----
2026-06-17 07:06 am S 1.9 1.9----29.79-- 57.0----
2026-06-17 07:00 am S 1.9 4.1----29.79+0.03 58.8 57.0----
2026-06-17 06:54 am S 2.9 4.1----29.79- 58.5 56.8----
2026-06-17 06:48 amSSW 1.9 2.9----29.79-------
2026-06-17 06:42 amSSW 1.9 2.9----29.79-------
2026-06-17 06:36 am S 1.9 2.9----29.79-------
2026-06-17 06:30 amSSW 1.9 2.9----29.79- 57.2 56.8----
2026-06-17 06:24 am SW 1.9 1.9----29.79- 56.8 56.8----
2026-06-17 06:18 am SW 1.0 1.9------------
2026-06-17 06:12 amWSW 1.9 2.9------------
2026-06-17 06:06 amWSW 1.0 2.9------------
2026-06-17 06:00 amSSW 2.9 5.1----29.79+0.03 56.7 57.0----
2026-06-17 05:54 amSSW 4.1 5.1----29.79- 56.1 57.0----
2026-06-17 05:48 am SW 2.9 2.9------------
2026-06-17 05:42 am SW 2.9 5.1------------
2026-06-17 05:36 amSSW 5.1 7.0------------
2026-06-17 05:30 amSSW 6.0 7.0----29.79- 55.9 56.8----
2026-06-17 05:24 amSSW 5.1 6.0----29.79- 55.9 56.8----
2026-06-17 05:18 amSSW 2.9 4.1----29.78-- 56.8----
2026-06-17 05:12 amSSW 1.9 2.9----29.78-- 56.8----
2026-06-17 05:06 am SW 2.9 5.1----29.78-- 56.8----
2026-06-17 05:00 amSSW 4.1 6.0----29.78+0.01 56.1 56.7----
2026-06-17 04:54 amSSW 5.1 6.0----29.78- 56.1 56.7----
2026-06-17 04:48 amSSW 5.1 5.1------------
2026-06-17 04:42 amSSW 4.1 4.1------------
2026-06-17 04:36 amSSW 2.9 5.1------------
2026-06-17 04:30 am S 4.1 5.1----29.77- 56.1 56.5----
2026-06-17 04:24 am S 5.1 6.0----29.77- 56.3 56.5----
2026-06-17 04:18 am S 5.1 6.0----29.77-------
2026-06-17 04:12 amSSW 2.9 5.1----29.77-------
2026-06-17 04:06 amSSW 4.1 5.1----29.76-------
2026-06-17 04:00 amSSW 4.1 5.1----29.76-0.01 56.8 56.3----
2026-06-17 03:54 am S 4.1 4.1----29.76- 57.0 56.3----
2026-06-17 03:48 am S 4.1 4.1----29.76-------
2026-06-17 03:42 am S 2.9 4.1----29.76-------
2026-06-17 03:36 am S 1.9 1.9----29.76-------
2026-06-17 03:30 am SW 1.0 2.9----29.76- 57.6 56.3----
2026-06-17 03:24 amSSW 2.9 2.9----29.76- 57.4 56.1----
2026-06-17 03:18 amSSW 2.9 2.9----29.76-------
2026-06-17 03:12 amSSW 2.9 2.9----29.75-------
2026-06-17 03:06 amSSE 1.9 2.9----29.76-------
2026-06-17 03:00 am S 4.1 4.1----29.76-0.01 57.7 55.4----
2026-06-17 02:54 am S 4.1 5.1----29.76- 57.9 55.4----
2026-06-17 02:48 amSSW 2.9 4.1----29.76-------
2026-06-17 02:42 am S 2.9 4.1----29.76-------
2026-06-17 02:36 amSSW 1.9 4.1----29.76-------
2026-06-17 02:30 amSSW 4.1 5.1----29.76- 58.3 55.2----
2026-06-17 02:24 amSSW 4.1 5.1----29.76- 58.6 55.2----
2026-06-17 02:18 amSSW 4.1 5.1----29.77-------
2026-06-17 02:12 amSSW 4.1 4.1----29.77-------
2026-06-17 02:06 amSSW 2.9 4.1----29.77-------
2026-06-17 02:00 amSSW 2.9 4.1----29.77+0.00 58.6 55.2----
2026-06-17 01:54 amSSW 2.9 2.9----29.77- 58.6 55.2----
2026-06-17 01:48 amSSW 2.9 2.9------------
2026-06-17 01:42 am SW 2.9 5.1------------
2026-06-17 01:36 amSSW 5.1 6.0------------
2026-06-17 01:30 amSSW 6.0 6.0----29.78- 59.5 55.2----
2026-06-17 01:24 amSSW 5.1 5.1----29.78- 60.3 55.0----
2026-06-17 01:18 amSSW 4.1 6.0----29.78-------
2026-06-17 01:12 amSSW 6.0 8.0----29.78-------
2026-06-17 01:06 amSSW 7.0 8.0----29.78-------
2026-06-17 01:00 amSSW 4.1 5.1----29.78+0.02 61.2 55.2----
2026-06-17 12:54 amSSW 5.1 5.1----29.78- 61.5 55.2----
2026-06-17 12:48 amSSW 5.1 6.0----29.78-------
2026-06-17 12:42 amSSW 6.0 7.0----29.78-------
2026-06-17 12:36 amSSW 7.0 7.0----29.78-------
2026-06-17 12:30 am SW 5.1 6.0----29.78- 61.5 55.2----
2026-06-17 12:24 amSSW 5.1 6.0----29.78- 61.5 55.0----
2026-06-17 12:18 amSSW 6.0 6.0----29.78-- 54.7----
2026-06-17 12:12 am SW 6.0 7.0----29.78-- 54.5----
2026-06-17 12:06 am SW 5.1 6.0----29.78-- 54.5----
2026-06-17 12:00 am SW 4.1 6.0----29.77+0.03 61.9 54.7----
2026-06-16 11:54 pmSSW 4.1 6.0----29.77- 61.9 54.5----
2026-06-16 11:48 pm SW 5.1 6.0------------
2026-06-16 11:42 pm SW 6.0 6.0------------
2026-06-16 11:36 pm SW 5.1 6.0------------
2026-06-16 11:30 pm SW 5.1 6.0----29.76- 62.2 55.0----
2026-06-16 11:24 pm SW 4.1 6.0----29.76- 62.1 55.4----
2026-06-16 11:18 pm SW 5.1 6.0----29.76-------
2026-06-16 11:12 pmSSW 5.1 7.0----29.76-------
2026-06-16 11:06 pm SW 5.1 7.0----29.76-------
2026-06-16 11:00 pmSSW 5.1 7.0----29.76+0.04 62.4 56.8----
2026-06-16 10:54 pmSSW 6.0 8.0----29.76- 62.4 57.0----
2026-06-16 10:48 pmSSW 6.0 8.0----29.76-------
2026-06-16 10:42 pmSSW 7.0 8.0----29.76-------
2026-06-16 10:36 pmSSW 6.0 7.0----29.76-------
2026-06-16 10:30 pmSSW 7.0 7.0----29.76- 62.2 56.5----
2026-06-16 10:24 pmSSW 7.0 8.0----29.76- 62.2 56.3----
2026-06-16 10:18 pmSSW 6.0 6.0----29.76-- 56.3----
2026-06-16 10:12 pmSSW 6.0 7.0----29.76-- 56.5----
2026-06-16 10:06 pmSSW 7.0 8.0----29.76-- 56.7----
2026-06-16 10:00 pmSSW 7.0 8.0----29.76+0.05 62.4 56.8----
2026-06-16 09:54 pmSSW 7.0 7.0----29.75- 62.4 56.8----
2026-06-16 09:48 pmSSW 5.1 7.0----29.75-------
2026-06-16 09:42 pmSSW 6.0 7.0----29.75-------
2026-06-16 09:36 pmSSW 6.0 7.0----29.75-------
2026-06-16 09:30 pmSSW 6.0 7.0----29.75- 62.4 58.3----
2026-06-16 09:24 pmSSW 6.0 8.0----29.75- 62.6 58.8----
2026-06-16 09:18 pmSSW 7.0 8.0----29.75-------
2026-06-16 09:12 pmSSW 7.0 8.9----29.75-------
2026-06-16 09:06 pmSSW 8.9 9.9----29.74-------
2026-06-16 09:00 pmSSW 8.0 11.1----29.74+0.04 63.0 58.8----
2026-06-16 08:54 pmSSW 8.0 8.9----29.74- 63.1 59.0----
2026-06-16 08:48 pmSSW 6.0 8.0----29.74-------
2026-06-16 08:42 pmSSW 7.0 8.0----29.74-------
2026-06-16 08:36 pmSSW 8.0 11.1----29.73-------
2026-06-16 08:30 pmSSW 8.0 8.9----29.73- 63.9 59.7----
2026-06-16 08:24 pmSSW 8.0 12.0----29.73- 63.9 59.7----
2026-06-16 08:18 pmSSW 9.9 12.0------------
2026-06-16 08:12 pm S 9.9 11.1------------
2026-06-16 08:06 pm S 7.0 8.0------------
2026-06-16 08:00 pm S 6.0 8.0----29.73+0.04 64.6-----
2026-06-16 07:54 pm S 7.0 8.0----29.73- 64.9-----
2026-06-16 07:48 pm S 7.0 8.9------------
2026-06-16 07:42 pmSSW 7.0 8.0------------
2026-06-16 07:36 pmSSW 7.0 9.9------------
2026-06-16 07:30 pmSSW 8.0 8.9----29.72- 66.2 59.0----
2026-06-16 07:24 pm S 5.1 8.9----29.72- 66.0 59.2----
2026-06-16 07:00 pm S 12.0 15.9----29.71+0.02 66.4 59.0----
2026-06-16 06:54 pm S 13.0 15.9----29.71- 66.4 59.0----
2026-06-16 06:48 pmSSW 13.0 15.9------- 59.0----
2026-06-16 06:42 pmSSW 11.1 14.0------- 59.2----
2026-06-16 06:36 pm S 11.1 13.0------- 59.2----
2026-06-16 06:30 pm S 12.0 13.0----29.70- 67.6 59.2----
2026-06-16 06:24 pm S 8.9 12.0----29.70- 67.8 59.2----
2026-06-16 06:18 pmSSW 8.0 8.9----29.70-------
2026-06-16 06:12 pmSSW 7.0 9.9----29.70-------
2026-06-16 06:06 pm SW 8.9 11.1----29.70-------
2026-06-16 06:00 pm S 6.0 8.9----29.70+0.00 69.1 58.8----
2026-06-16 05:54 pm S 8.0 8.9----29.70- 68.5 58.5----
2026-06-16 05:48 pm S 8.0 8.9------------
2026-06-16 05:42 pm S 8.0 12.0------------
2026-06-16 05:36 pm S 12.0 13.0------------
2026-06-16 05:30 pm S 8.9 12.0----29.69- 68.0 58.1----
2026-06-16 05:24 pm S 11.1 12.0----29.69- 68.5 58.1----
2026-06-16 05:18 pm S 8.9 9.9------------
2026-06-16 05:12 pm S 8.9 11.1------------
2026-06-16 05:06 pm S 9.9 12.0------------
2026-06-16 05:00 pm SE 1.9 8.0----29.69-0.01 67.6 58.1----
2026-06-16 04:54 pmESE 5.1 6.0----29.69- 67.6 58.1----
2026-06-16 04:48 pm E 7.0 9.9------------
2026-06-16 04:42 pm E 8.0 9.9------------
2026-06-16 04:36 pm E 4.1 7.0------------
2026-06-16 04:30 pm S 1.9 7.0----29.69- 69.1 57.6----
2026-06-16 04:24 pmSSW 5.1 6.0----29.69- 71.8 57.2----
2026-06-16 04:18 pm S 7.0 11.1----29.69-------
2026-06-16 04:12 pm SW 4.1 8.0----29.69-------
2026-06-16 04:06 pm SW 7.0 12.0----29.69-------
2026-06-16 04:00 pmSSW 4.1 9.9----29.69-0.02 72.5 56.8----
2026-06-16 03:54 pmSSW 5.1 8.0----29.70- 71.2 56.8----
2026-06-16 03:48 pmSSW 1.9 8.9------------
2026-06-16 03:42 pmWNW 9.9 13.0------------
2026-06-16 03:36 pm W 11.1 15.0------------
2026-06-16 03:30 pmWNW 9.9 15.9----29.70- 74.7 57.2----
2026-06-16 03:24 pmWNW 8.0 15.0----29.70- 74.5 56.8----
2026-06-16 03:18 pmWNW 8.0 12.0----29.70-------
2026-06-16 03:12 pmWNW 7.0 9.9----29.70-------
2026-06-16 03:06 pm N 4.1 6.0----29.70-------
2026-06-16 03:00 pmWNW 5.1 9.9----29.70-0.02 73.8 55.6----
2026-06-16 02:54 pmWNW 6.0 8.9----29.70- 73.6 55.6----
2026-06-16 02:48 pm NW 1.9 6.0----29.70-------
2026-06-16 02:42 pm NW 4.1 12.0----29.70-------
2026-06-16 02:36 pmWNW 6.0 9.9----29.70-------
2026-06-16 02:30 pm N 1.9 6.0----29.70- 71.8 55.6----
2026-06-16 02:24 pmWNW 4.1 14.0----29.70- 71.6 55.8----
2026-06-16 02:18 pmWNW 8.9 17.1----29.70-------
2026-06-16 02:12 pmWNW 7.0 12.0----29.70-------
2026-06-16 02:06 pm NW 2.9 9.9----29.70-------
2026-06-16 02:00 pm W 8.0 11.1----29.70-0.02 71.6 55.9----
2026-06-16 01:54 pm N 5.1 11.1----29.70- 70.9 55.9----
2026-06-16 01:48 pm W 4.1 9.9----29.70- 70.9 55.9----
2026-06-16 01:42 pmWNW 7.0 11.1----29.71- 71.4 56.1----
2026-06-16 01:36 pm N 5.1 7.0----29.71- 70.2 56.1----
2026-06-16 01:30 pmWNW 8.0 14.0----29.71- 70.5 56.1----
2026-06-16 01:24 pm SW 6.0 9.9----29.71- 70.5 56.3----
2026-06-16 01:18 pmWSW 5.1 7.0------------
2026-06-16 01:12 pm W 2.9 9.9------------
2026-06-16 01:06 pm NW 5.1 11.1------------
2026-06-16 01:00 pm SW 6.0 9.9----29.71-0.01 69.8 55.8----
2026-06-16 12:54 pm SW 6.0 8.9----29.72- 69.4 55.9----
2026-06-16 12:48 pm W 1.9 8.0----29.72-------
2026-06-16 12:42 pm NW 8.0 9.9----29.72-------
2026-06-16 12:36 pm SW 7.0 13.0----29.72-------
2026-06-16 12:30 pm SW 8.9 14.0----29.72- 68.7 56.3----
2026-06-16 12:24 pmWSW 7.0 12.0----29.72- 69.6 56.5----
2026-06-16 12:18 pm W 7.0 12.0----29.72-------
2026-06-16 12:12 pm W 7.0 13.0----29.72-------
2026-06-16 12:06 pmWSW 9.9 13.0----29.72-------
2026-06-16 12:00 pm W 12.0 14.0----29.72-0.01 69.4 56.3----
2026-06-16 11:54 am W 5.1 12.0----29.72- 69.4 56.3----
2026-06-16 11:48 am W 9.9 13.0----29.72-------
2026-06-16 11:42 amWSW 2.9 11.1----29.72-------
2026-06-16 11:36 am W 8.0 11.1----29.72-------
2026-06-16 11:30 amWSW 8.9 12.0----29.73- 68.5 56.5----
2026-06-16 11:24 am W 5.1 11.1----29.73- 68.2 56.7----
2026-06-16 11:18 am W 8.9 12.0----29.73-------
2026-06-16 11:12 amWSW 7.0 12.0----29.72-------
2026-06-16 11:06 amWNW 6.0 9.9----29.72-------
2026-06-16 11:00 amWSW 4.1 12.0----29.72+0.00 68.2 56.8----
2026-06-16 10:54 am W 7.0 14.0----29.73- 68.5 56.8----