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W1GMF > WX 07.03.08 20:00l 60 Lines 2310 Bytes #999 (0) @ WW
BID : 24413_W1GMF
Read: GUEST
Subj: MT WASHINGTON 0307
Path: IZ3LSV<IW2OHX<OE6XPE<DB0RES<ON4HU<VE3UIL<VK2DOT<VK4TRS<ZL2BAU<N1UAN<
W1GMF<W1GMF
Sent: 080307/1131Z @:W1GMF.#EMA.MA.USA.NOAM #:24413 [ABINGTON, MA] FBB7.00e
From: W1GMF@W1GMF.#EMA.MA.USA.NOAM
To : WX@NEBBS
MT WASHINGTON WEATHER CONDITIONS
Friday, March 7, 2008
4:04 AM
Winter storm watch in effect this evening through Sunday morning
Conditions at 4:04 AM
Weather: Clear, mostly clear skies
Temperature: 19°F
Wind: SW 25
Visibility: 75 miles
Relative Humidity: 50%
Station Pressue: 23.82" and rising
Ground Conditions: 10" packed rime, snow, ice w/ deeper drifts
24 Hour Statistics
Maximum Temperature: 19°F
Minimum Temperature: 4°F
Peak Wind Gust: W 87
Average Wind Speed: 40.3 mph
Liquid Precipitation: 0.00"
Snowfall: 0.0"
Almanac Data
Record High: 37°F (1973)
Record Low: -21°F (1937)
Average Daily Temperature: 11°F
Average Monthly Melted Precipitation: 9.42
Average Monthly Snowfall: 54.10
Total Snowfall So Far This Month: 16.4"
Average Monthly Winds: 40.4
Sunrise: 06:06
Sunset: 5:47
Forecast Discussion
The summits will continue to warm on the backside of the high, and winds will remain fairly calm by summit standards today, keeping temperatures and wind chills on the mild side. A large area of low pressure developing in the Gulf States will begin to trek along the eastern seaboard. In the process, a secondary low will form on the North Carolina coastline, and pass to the northeast of the forecast area during the day tomorrow. This will bring the first shot of precipitation, beginning tonight. With temperatures starting below freezing, precipitation should begin as snow. But as the vertical column warms due to southerly flow and overrunning, that will change over to rain. The primary low will continue to travel up the eastern seaboard, intensifying as it does so. By tomorrow evening the low will be situated just to our south west, with temperatures beginning to decline. This will cause messy precipitation, with the warmer air still aloft, creating freezing rain on the higher summits for some time. Looking at model soundings, the summits should be smack in the middle of the warmest slot of air for Friday into Saturday, providing what looks to be rain on the higher summits, and freezing rain in the valleys. The warm waters of the Gulf of Mexico and Gulf Stream will provide plenty of moisture and energy, resulting in high quantities of precipitation, with precip being heavy at times.
Stacey Kawecki
Observer
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