Winter Weather Outlook: Snow event Friday through Sat N

A Quick Guide to the Percentages

Storm Forecast Verification (with 24hr lead)

2008-09 Snow Report


10/28/2008	T		OCT: T
11/18/2008	T
11/22/2008	T
11/24/2008	0.1
11/28/2008	0.1
11/30/2008	1.2		NOV: 1.4
12/07/2008	0.5
12/09/2008	1.4
12/12/2008	1.0	E,C,C
12/13/2008	T
12/17/2008	3.6	C
12/19/2008	8.6	C
12/20/2008	2.5
12/21/2008	7.4	D
12/31/2008	8.7		DEC: 33.7
01/05/2008	T	D
01/07/2009	3.5	C
01/08/2009	3.8
01/11/2009	7.8
01/18/2009	5.0
01/19/2009	2.0
01/28/2009	9.1	C	JAN: 31.2
02/13/2009	T
02/19/2009	4.8
02/20/2009	1.0
02/22/2009	6.2		FEB: 12.0
03/02/2009	4.5	C
03/09/2009	6.3		MAR: 10.8

-----------------------------------------
Total so far	89.2
(Highest snowdepth recorded so far: 24)

2007-08 Snow Report


11/16/2007	T
11/20/2007	2.2
11/26/2007	T		NOV: 2.2
12/01/2007	0.1
12/03/2007	7.0	C
12/07/2007	T
12/10/2007	1.0	D
12/13/2007	7.6
12/16/2007	10.1	D
12/20/2007	3.3	D	
12/27/2007	1.2		
12/31/2007	9.4		DEC: 39.7
01/01/2008	5.5
01/11/2008	T	D
01/14/2008	5.1	C
01/18/2008	3.3	C
01/21/2008	0.5		
01/23/2008	0.1		
01/27/2008	1.5		JAN: 16.0
02/01/2008	2.5	E	
02/05/2008	1.0	D	
02/07/2008	2.5	D	
02/10/2008	5.0		
02/13/2008	8.2	C	
02/18/2008	T	D
02/19/2008	T
02/22/2008	4.5
02/26/2008	9.6
02/27/2008	0.3		FEB: 33.4
03/01/2008	4.7
03/09/2008	T
03/12/2008	0.5
03/15/2008	1.5
03/19/2008	0.6
03/28/2008	5.4	C
03/31/2008	1.0		MAR: 13.7
04/04/2008	1.2		APR: 1.2

-----------------------------------------
Total		106.4
(Seasonal average reached on 2/13/08)
(Highest snowdepth recorded: 28)

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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.

Snow event Friday through Sat N

Posted: 2/18/2008 09:18:00 PM

Details coming either tonight or tomorrow morning. Looks like a moderate snow event possible. Still many different ways this storm can unfold. ECMWF phases the two shortwaves = warmer senario. GFS keeps them separate. It is worth noting also that both have a large water equivalent prediction. The following preliminary forecast will cover all of Friday afternoon through Saturday afternoon.

Snowfall forecast: 3" - 6"

|posted by Sam Lillo @ 2/18/2008 09:18:00 PM

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Snow event Friday through Sat N

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(c) 2005-10, Sam Lillo. The forecasts made on this site are unofficial and should not be relied on in life-threatening situations. For official forecasts, consult the National Weather Service.