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Today's Weather atop Mount Washington

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.
Saturday, July 19, 2008
4:27 AM
Advisory: Severe Thunderstorms possible the next 36 hours...heavy rain, gusty winds, hail...
Conditions at 4:27 AM

Weather: Fog

Temperature: 53°F

Wind: W 52 mph

Visibility: 100 feet

Relative Humidity: 100%

Station Pressue: 23.88" falling

Ground Conditions: Wet w/ puddles

24 Hour Statistics

Maximum Temperature: 56°F

Minimum Temperature: 47°F

Peak Wind Gust: W 88 mph

Average Wind Speed: 35.7 mph

Liquid Precipitation: 0.89"

Snowfall: Trace (hai

Almanac Data

Record High: 70°F (1953)

Record Low: 32°F (1997, 2000)

Average Daily Temperature: 49°F

Average Monthly Melted Precipitation: 8.02

Average Monthly Snowfall: Trace

Total Snowfall So Far This Month: Trace (hai

Average Monthly Winds: 26.0

Sunrise: 5:12

Sunset: 8:30

Forecast Discussion

A stationary frontal boundary will remain over the US-Canadian border over the forecast period. A series of weak areas of low pressure will ride along this front keeping things unsettled for the next 36 hours if not longer as models keep this feature into the middle of next week. A band of showers and thunderstorms is approaching on radar this morning and will sweep through this morning shortly after sunrise which will be followed by convective cells that will continue to generate as conditions are primed for their development. Some things making them primed according to the models are increased cape, winds increasing with height and plenty of warm, moist air. Overnight, convective cells will die down a bit as diurnal lifting is cut off but unsettled conditions will keep isolated cells going through the night. Tomorrow, the morning may see a bit of a break but another area of low pressure will approach from the Great Lakes bring showers and thunderstorms back to the summits especially during the latter half. Convective cells the next 36 hours may contain heavy rain, hail, gusty winds and frequent lightning.

Ryan Knapp
Staff Meteorologist
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