Monday, January 16, 2012

1-15-12 Heralding Winter's Arrival at the Observatory (photos are from the Mt. Washington Obs webcams)

On Saturday afternoon at 4 pm the summit of Mt. Washington was clear. At the time the temperature was -11.0 degrees F and the wind was from the West at 58.1 mph and a windchill of -48.6 degrees F.

View North from the summit of Mt. Washington at the same time the top image appeared in the Observatory's Bretton Woods webcam.

View North at 4 pm on Sunday, 1-15-12.

About 24 hours later the cold temperatures persisted along with elevated winds. At 3:15 pm Sunday the temperature on the summit was -13.3 F with the wind from 316 degrees West at 60.6 mph and a peak gust over the previous 24 hours of 110.4 mph. The windchill Sunday afternoon was minus -52.4 F. Pretty cold! Windchill was expected in the -50 degree range throughout the forecast period. By Monday morning, 1-16-12, the windchill was + 2.6 degrees F with almost no wind but then decreased during the morning to stabilize around -13 degrees F as the wind increased. It will probably warm up in the next few days.

Snow fell on a few days last week with the summit posting 27 inches of snow on Monday, 1-16-12. New snow accumulation at the huts that are open for the winter is in the average of 18 inches. Winter is finally here. Time to get out an enjoy it.

No comments:

Post a Comment