Portsmouth Harbor Weather

43°5'N 70°45'W
Current Conditions
Overcast
31°F
Feels like: 26°F
Wind Chill: 26°F Ceiling: 8000ft
Heat Index: 31°F Visibility: 10mi
Dew Point: 26°F Wind: 5mph
Humidity: 82% Direction: 180° (S)
Pressure: 29.57" Gusts: -
Reported: 15 minutes 57 seconds ago
February 10, 2016 6:00 pm EST
Location: 42.967N 70.623W or 5 nautical miles SE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: WSW (240°)
Wind Speed: 12 knots
Wind Gust: 13 knots
Atmospheric Pressure: 29.57 in (1001.2 mb)
Pressure Tendency: +0.04 in (+1.5 mb)
Air Temperature: 34°F (1.2°C)
Dew Point: 28°F (-2.5°C)
February 10, 2016 6:04 pm EST
Location: 43.181N 70.428W or 15 nautical miles NE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: WSW (240°)
Wind Speed: 10 knots
Wind Gust: 12 knots
Significant Wave Height: 5 ft
Dominant Wave Period: 11 sec
Atmospheric Pressure: 29.57 in (1001.3 mb)
Air Temperature: 35°F (1.6°C)
Water Temperature: 42°F (5.4°C)
Visibility: 1.6 nmi
February 10, 2016 6:30 pm EST
Location: 43.32N 70.563W or 18 nautical miles NNE of search location of 43.03175685184N 70.706634521484W.
Atmospheric Pressure: 29.55 in (1000.8 mb)
Air Temperature: 32°F (-0.2°C)
Water Temperature: 37°F (2.6°C)
Wednesday, February 10
6:48am / 5:06pm 7:53am / 7:51pm
Snow Showers Late
36°
22°
Day:
Night: Partly cloudy skies this evening. A few snow showers developing late. Low 22F. Winds W at 5 to 10 mph. Chance of snow 30%.
Thursday, February 11
6:46am / 5:07pm 8:29am / 9:03pm
Cloudy
30°
Day: Cloudy skies. A few flurries or snow showers possible. High near 30F. Winds WNW at 10 to 20 mph.
Night: Partly cloudy. Low 6F. Winds WNW at 10 to 20 mph.
Friday, February 12
6:45am / 5:09pm 9:04am / 10:15pm
Partly Cloudy
26°
14°
Times of sun and clouds. Highs in the mid 20s and lows in the mid teens.
Saturday, February 13
6:44am / 5:10pm 9:40am / 11:25pm
Cloudy/Wind
19°
-2°
Windy, and mainly cloudy. Highs in the upper teens and lows -4 to 0F.
Sunday, February 14
6:42am / 5:11pm 10:19am / 12:01am
Partly Cloudy
14°
Mix of sun and clouds. Highs in the mid teens and lows in the low single digits.
Monday, February 15
6:41am / 5:13pm 11:01am / 12:33am
Mostly Sunny
28°
23°
More sun than clouds. Highs in the upper 20s and lows in the low 20s.
Tuesday, February 16
6:40am / 5:14pm 11:48am / 1:37am
PM Light Rain
44°
32°
Late day light rain. Highs in the mid 40s and lows in the low 30s.
Wednesday, February 17
6:38am / 5:15pm 12:39pm / 2:38am
AM Showers
43°
25°
Showers ending by midday. Highs in the low 40s and lows in the mid 20s.
Thursday, February 18
6:37am / 5:17pm 1:33pm / 3:32am
Partly Cloudy
41°
25°
Partly cloudy. Highs in the low 40s and lows in the mid 20s.
Friday, February 19
6:35am / 5:18pm 2:32pm / 4:22am
Mostly Sunny
40°
27°
A few clouds. Highs in the low 40s and lows in the upper 20s.
Wind Forecast
Day WednesdayThursdayFriday
MPH 5 9 7 6 10 15 15 14 12 10 8 8
WSW
W
W
W
W
WNW
WNW
WNW
WNW
W
W
SSW
Radar
Marine Forecast
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY
Synopsis: A BROAD UPPER TROUGH WILL SLOWLY CROSS THE WATERS THROUGH THE END OF THE WEEK. A COLD FRONT CROSSES THE WATERS LATE THURSDAY...WITH GUSTY NW WINDS. HIGH PRESSURE BRIEFLY CROSSES THE WATERS FRIDAY...BEFORE A STRONG ARCTIC FRONT DRIVES THROUGH THE REGION SATURDAY. MUCH COLDER AIR...GUSTY NW WINDS...FREEZING SPRAY AND REDUCED VISIBILITIES DUE TO ARCTIC SEA SMOKE ARE LIKELY.
Tonight
WSW wind around 10 kt becoming W after midnight. Mostly cloudy. Seas around 3 ft.
Thursday
WNW wind 10 to 15 kt, with gusts as high as 25 kt. A chance of snow showers between noon and 5pm. Seas around 2 ft.
Thursday Night
WNW wind 15 to 20 kt. Mostly cloudy, then gradually becoming clear. Seas 1 to 2 ft.
Friday
WNW wind 10 to 15 kt becoming WSW in the afternoon. Increasing clouds. Seas around 1 ft.
Friday Night
SW wind around 10 kt becoming W after midnight. Mostly cloudy. Seas around 1 ft.
Saturday
NW wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 25 kt. A chance of snow showers. Seas 1 ft building to 3 ft.
Saturday Night
NW wind around 20 kt, with gusts as high as 30 kt. A chance of snow showers. Seas 2 to 3 ft.
Sunday
NW wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas around 2 ft.
Sunday Night
WNW wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 20 kt. Mostly clear. Seas 1 to 2 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.