Updated at 10:55EDT 4/15

Short term Winter threat


Fri-Sun 4/16-18
40% chance of a winter event
10% chance of a
severe winter event

Long term Winter threat


None
0% chance of a winter event
0% chance of a
severe winter event

Snowday probabilities1


Friday 4/16
20% chance of a delay
0% chance of an early dismissal
0% chance of a cancellation

Snowday probabilities2


None
0% chance of a delay
0% chance of an early dismissal
0% chance of a cancellation
Snowday probabilities are made by Sam Lillo, for SAU29 in Keene. These percentages should not be relied on outside of Cheshire County, NH. In addition, in Cheshire County, please do all school work on time depsite the issued forecast.

  Winter making a return?

Posted: 4/13/2010 11:23:00 PM

April openned with sunny skies and record setting highs in the 80's across New England. This supposedly marked the end of a disappointing winter for the region. However, old man winter is making a last appearance at the end of the week.

A shortwave will swing down from Ontario Thursday Night. A secondary surface low will develop south of New England with a strong cold front extending NW to SE across NY and NJ. The frontal boundary will be a focus for moderate precipitation for much of New England during the day Friday. Model QPF totals are projected around .75"

Precipitation type becomes a concern as high pressure to the north allows a cold northerly ageostrophic flow. At least some mixing with snow appears likely for interior high terrain of New England. In fact, there is growing agreement for decent accumulation. Given the time of the year, it's definitely wise to stay cautious with these situations. We'll have to watch it closely however, because a surprise late season moderate snowfall is entirely possible.

|posted by Sam Lillo @ 4/13/2010 11:23:00 PM| |Top| || |1 Comments|

  Potential for accumulating snow AM Friday

Posted: 3/24/2010 06:43:00 PM

A strong cold front will advance on the region tomorrow afternoon and night; dividing 50's from 20's. A wave of low pressure will move along the front through the central plains into the Mid Atlantic region Thursday night. As colder air plunges south, moisture will be transported north. This will set the stage for rain changing to snow late Thursday night into early Friday morning before drier air moves in. QPF amounts will generally be around .5", but a decent portion will fall as rain. This still leaves us with the potential for one to two inches of wet sloppy snow by Friday morning, primarily in the higher elevations. If colder air works south quicker, it may be more, and so there is a slight chance of a delay on Friday.

|posted by Sam Lillo @ 3/24/2010 06:43:00 PM| |Top| || |0 Comments|

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