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W1GMF > WX 15.02.08 19:01l 60 Lines 3077 Bytes #999 (0) @ WW
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Subj: MT WASHINGTON 0215
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Sent: 080215/1121Z @:W1GMF.#EMA.MA.USA.NOAM #:22094 [ABINGTON, MA] FBB7.00e
From: W1GMF@W1GMF.#EMA.MA.USA.NOAM
To : WX@NEBBS
MT WASHINGTON WEATHER CONDITIONS
Friday, February 15, 2008
5:35 AM
Wind chill advisory noon today to midnight tonight...Wind chill warning midnight through tomorrow...
Conditions at 5:35 AM
Weather: Cloudy, blowing snow
Temperature: 15°F
Wind: SW 58 mph
Visibility: 80 miles
Relative Humidity: 100%
Station Pressue: 23.51" falling
Ground Conditions: 15" snow/ice/rime w/ deep drifts
24 Hour Statistics
Maximum Temperature: 17°F
Minimum Temperature: 3°F
Peak Wind Gust: NW 74 mph
Average Wind Speed: 52.5 mph
Liquid Precipitation: 0.00"
Snowfall: 0.0"
Almanac Data
Record High: 42°F (1984)
Record Low: -46°F (1943)
Average Daily Temperature: 6°F
Average Monthly Melted Precipitation: 7.33
Average Monthly Snowfall: 42.40
Total Snowfall So Far This Month: 31.6"
Average Monthly Winds: 43.0
Sunrise: 06:39
Sunset: 5:20
Forecast Discussion
Surface low pressure centered over southern Canada will move east today along the Saint Lawrence River Valley which will continue snow showers as it shears apart today. This afternoon, an arctic cold front trailing the departing low will sweep through bringing a continued chance of snow showers as well as plummeting temperatures. Temperatures will continue to drop through the night as an upper level low reinforces the inundation of colder northern air carried down with northwesterly flow. This means todays high temperature has already occurred around 1 am this morning on the summit, so it is all down here from here folks. Temperatures will bottom out tomorrow morning around 20 below before making a slight rebound as surface high pressure slowly builds in tomorrow. Fog on the summit has currently lifted but clouds above will lower as the cold front approaches, eventually plunging the higher terrain back into the fog. With ample moisture and northwest flow overnight, there will continue to be a chance of snow showers as well as plenty of fog. The only limiting factor overnight is the temperatures since colder temperatures have a harder time squeezing out snow showers and holding fog. Therefore, if anything will occur, the evening hours will be the best shot for snow showers with fog thinning by sunrise I suspect. Tomorrow, drier air begins to work in clearing things out as winds slowly begin to dampen a bit with the building high. By tomorrow afternoon, blue skies should prevail after morning clouds dissipate. One thing that will persist through the forecast period though is high blowing snow. With shifting and increasing winds, snow transport will generate ground blizzards at times, especially above tree-line. With the winds and lowering temperatures, we will issue a wind chill advisory from noon today until midnight tonight then a wind chill warning from midnight tonight through tomorrow. Wind chills will start 10-20 below today dropping to 25-35 below this afternoon and continuing to drop through the night ending up 55-65 below by sunrise before rebounding a bit tomorrow afternoon to 45-55 below.
Ryan Knapp
Staff Meteorologist
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