White Mountain Region Forecast

Friday, May 9, 2008

Valley Forecast:

Temperature

Wind

Today

Mostly sunny early then increasingly cloudy.

mid 60s°F

Variable and light

Tonight

Mostly cloudy.

upper 30s°F

Variable and light becoming NE around 10 mph

Extended Outlook:

Highs

Lows

Tomorrow

Mostly cloudy w/ a chance of rain showers. Patchy morning fog. Trending towards clearing overnight.

upper 50s°F

upper 30s°F

Sunday

Sunny.

lower 60s°F

mid 30s°F

Monday

Mostly cloudy w/ a chance of rain.

lower 50s°F

mid 30s°F

Tuesday

Mostly cloudy.

mid 50s°F

mid 30s°F

Summits Outlook: Mountain weather is subject to rapid changes and extreme conditions. Always be prepared to make your own assessment of travel and weather conditions. This outlook is one tool to help you plan a safe trip. Always travel with adequate clothing, shelter, food, and water.

Today

Tonight

Tomorrow

Fog early then becoming mostly clear under increasingly cloudy skies. Wind chills 0-10 above rising to 15-25 above.

Mostly in the clear under mostly cloudy skies. Wind chills 0-10 above.

In and out of the clouds under mostly cloudy skies w/ a slight chance of mixed showers. Wind chills 5-15 above.

Highs:

mid 20s rising to mid 30s°F

Lows:

mid 20s°F

Highs:

lower 30s°F

Wind:

NW shifting ENE 35-50 mph decreasing to 5-25 mph by midday

Wind:

E 15-30 mph increasing to 30-45 mph

Wind:

E shifting NW 30-45 mph increasing to 45-60 mph

Air Quality Forecast: Good levels

Summit Data:

Auto Road Vertical Temperature Profile at

6288'

5:02 AM Summit Conditions

Yesterday

Almanac for Friday, May 9, 2008

34.4°F

Weather:

Freezing Fog

Max. Temperature:

44°F

Record High:

61°F

set in

1979

5300'

Min. Temperature:

26°F

Record Low:

7°F

set in

1962

39.0°F

Temperature:

25°F

Peak Gust:

W 68 mph

Average Daily Temperature:

33°F

4300'

Wind:

NW 39 mph

Average Wind Speed:

45.2 mph

Average Monthly Temperature:

35.5°F

41.8°F

Wind Chill:

6.0°F

Liquid Precipitation:

0.02"

Average Monthly Precipitation:

8.21

3300'

Relative Humidity:

100%

Average Monthly Snowfall:

12.50

43.8°F

Visibility:

75 feet

Monthly Total Liquid Precip:

0.48"

Average Monthly Winds Speed:

28.3

2300'

Barometric Pressure:

23.55" rising

Snowfall:

0.0"

Sunrise:

5:19 A.M.

Sunset:

8:04 P.M.

50.6°F

Ground Conditions:

Rime covered rocks w/ patches of snow/ice

Monthly Total Snowfall:

0.3"

Length of Day:

14 hours 45 minutes

1600'

Special Phenomena:

54.4°F

 

 

Days with Fog this Month:

6

The Mount Washington Observatory is a private, non-profit organization supported by the generosity of its members. Its mission is to advance understanding of the natural forces that create the Earth's weather and climate.

www.mountwashington.org