Poga Mountain, NC: 2006-2007 Winter Season Storms

Storm Summary with Tall to Borderline Vertical Profile (AGL) of the 2007-2008 Winter Season (November - April) - 11 Storms

Poga Mountain, North Carolina ( Elevation: 1137 m)

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Storm Summary of the 2006-2007 Winter Season (November - April)

Storm Summary of the 2007-2008 Winter Season (November - April)

Storm Summary of the 2008-2009 Winter Season (November - April)

Blue highlighted rows: Snow, freezing rain, sleet, or mixed cases

Grey highlighted rows: Virga or mix of virga and rain, no snow

SWE = Snow-water equivalent

Feb. 29 & Apr. 29 = Borderline to Tall to Borderline

* = average for snow days only

** = general trend 6 hours before storm

Tall (> 4.0 km AGL) Continuity for Storm Maturity

Borderline ( 2.5-4.0 km AGL) Scattered: Several Breaks

Shallow (< 2.5 km AGL)

Storm Summary
Rain	22
Rain to Virga (to Rain)	5
Virga to Rain (to Virga)	17
Rain/Virga	7
Rain to Snow	7
Snow (to Virga)	8
Virga (to Rain) to Snow	6
Virga (to Snow to Virga)	3

Continuity
Continuous	14
Scattered	60
Continuous (Snow)	4
Scattered (Snow)	19

AGL
Tall		24
Tall to Borderline		11
Tall to Shallow		13
Borderline		11
Borderline to Shallow		5
Borderline to Tall		4
Shallow (to Tall)		6

Average	All	Page
Temp. (°C)	5.1	4.7
Wind Direction	218°	275°
Wind Speed (m/s)	3.3	3.2
Duration (hrs)	14.8	10.4
Snowfall (in) *	0.33	0.23

													Trends
								Wind Direction					Temperature		RH		Pressure
Year	Month	Day	Type	Continuity	Start Time (UTC)	Duration (hrs)	Avg. Temp. (°C)	Avg.	At Snow Storm Maturity	Wind Speed (m/s)	Snowfall (in)	SWE (in)	before**	during	before**	during	before**	during
2007	11	9	Virga to Rain	Scattered	22:30	4.5	6.4	W	--	2.7	--	--	decreasing	decreasing	down - up	increasing	decreasing	decreasing
2007	11	19	Rain	Scattered	10:30	10	9.6	W	--	2.0	--	--	down - up	flat	decreasing	increasing	decreasing	up - down
2007	12	8	Rain/Light Rain	Scattered	13:00	14.5	11.7	W	--	2.3	--	--	increasing	increasing	increasing	increasing	increasing	increasing
2008	2	10	Virga/Light Rain	Scattered	18:30	2	0.8	W	--	6.7	--	--	increasing	decreasing	increasing	increasing	flat	flat
2008	2	19	Virga to Snow to Virga	Scattered	1:30	21	-2.9	W	W	4.3	0.1	0.01	decreasing	down - up	decreasing	flat	increasing	increasing
2008	2	20	Rain/Virga	Scattered	19:00	4	5.7	W	--	5.4	--	--	increasing	decreasing	decreasing	increasing	decreasing	increasing
2008	2	29	Virga to Snow	Scattered	9:00	22	0.3	S	SE	2.2	0.4	0.13	increasing	increasing	decreasing	increasing	increasing	decreasing
2008	4	2	Virga to Rain to Virga	Scattered	22:00	2	11.6	NW	--	1.1	--	--	increasing	decreasing	decreasing	flat	decreasing	increasing
2008	4	14	Snow to Virga	Scattered	16:30	14.5	-0.9	NW	NW	2.9	0.4	0.08	increasing	decreasing	decreasing	increasing	increasing	increasing
2008	4	20	Rain	Scattered	9:30	13.5	6.3	NW	--	2.3	--	--	decreasing	increasing	down - up	decreasing	decreasing	increasing
2008	4	29	Rain to Snow	Scattered	1:00	6.5	3.2	W	NW	3.6	trace	0.03	up - down	decreasing	down - up	up - down	increasing	up - down

Version 1.2, 18 August 2011

web page credits: Micheal Tai Bryant, Sandra Yuter, L. Baker Perry

This research is a collaboration between the
Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University
and the Department of Geography and Planning, Appalachian State University

contacts:
Dr. Sandra Yuter seyuter@ncsu.edu

Dr. L. Baker Perry perrylb@appstate.edu