Poga Mountain, NC: 2007-2008 Winter Season Storms

Storm Summary with Tall Vertical Profile (AGL) of the 2007-2008 Winter Season (November - April) - 24 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

Apr. 19 = Tall to Borderline to Tall

* = 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	7.6
Wind Direction	218°	172°
Wind Speed (m/s)	3.3	3.1
Duration (hrs)	14.8	13.2
Snowfall (in) *	0.33	0.73

													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	25	Rain/Virga	Scattered	00:00	24	5.7	SE	--	1.8	--	--	decreasing	increasing	increasing	increasing	decreasing	decreasing
2007	12	3	Rain	Continuous	00:00	8.5	11.2	SW	--	3.4	--	--	increasing	up - down	increasing	increasing	decreasing	decreasing
2007	12	7	Freezing rain/sleet to Virga	Scattered	4:30	15.5	1.9	SE	SE	1.8	trace	0.01	decreasing	increasing	increasing	up - down	increasing	flat
2007	12	12	Rain	Scattered	17:00	5.5	12.9	W	--	2.3	--	--	increasing	decreasing	flat	increasing	flat	flat
2007	12	20	Rain to Virga to Rain	Scattered	23:00	17.5	1.1	E	--	5.3	--	--	decreasing	decreasing	increasing	flat	decreasing	increasing
2007	12	22	Virga to Rain	Scattered	21:30	19	7.0	SE	--	5.2	--	--	increasing	increasing	flat	decreasing	decreasing	decreasing
2008	1	6	Rain	Scattered	6:00	14.5	8.7	SW	--	1.4	--	--	increasing	increasing	increasing	decreasing	decreasing	up - down
2008	1	10	Rain	Scattered	8:30	5.5	3.2	S	--	2.8	--	--	decreasing	decreasing	up - down	increasing	flat	decreasing
2008	1	11	Rain/Virga	Scattered	0:00	13	9.2	S	--	3.9	--	--	increasing	decreasing	increasing	down - up	decreasing	decreasing
2008	1	16	Virga to Snow to Freezing Rain/Snow Mix	Continuous	22:00	18.5	-3.9	E	E	4.6	1.8	0.33	decreasing	decreasing	increasing	increasing	decreasing	decreasing
2008	1	19	Virga to Snow to Virga	Scattered	5:30	21	-4.0	W	NW	2.3	0.4	0.04	decreasing	decreasing	decreasing	increasing	increasing	decreasing
2008	1	29	Virga to Rain to Virga	Scattered	0:00	12	6.9	S	--	1.5	--	--	decreasing	flat	flat	flat	flat	increasing
2008	2	3	Virga to Rain to Virga	Continuous	22:00	5	6.0	SE	--	2.1	--	--	increasing	decreasing	decreasing	increasing	decreasing	up - down
2008	2	4	Rain	Continuous	16:30	7	11.0	SE	--	1.1	--	--	increasing	decreasing	flat	increasing	increasing	flat
2008	2	6	Rain	Continuous	14:30	7	12.5	S	--	3.5	--	--	decreasing	down - up	increasing	up - down	decreasing	decreasing
2008	2	12	Virga to Rain to Virga	Scattered	14:30	6	6.8	S	--	4.6	--	--	increasing	decreasing	flat	increasing	decreasing	decreasing
2008	3	7	Rain/Virga	Continuous	12:00	5.5	5.6	SE	--	7.7	--	--	decreasing	increasing	increasing	increasing	decreasing	decreasing
2008	3	14	Virga to Rain	Scattered	16:00	11.5	9.7	SW	--	2.9	--	--	increasing	decreasing	decreasing	increasing	decreasing	down - up
2008	3	31	Rain/Virga	Scattered	10:30	25.5	10.0	SE	--	2.8	--	--	increasing	increasing	flat	down - up	decreasing	decreasing
2008	4	3	Rain	Scattered	7:00	18.5	4.4	E	--	4.6	--	--	decreasing	flat	increasing	increasing	flat	decreasing
2008	4	11	Virga to Rain	Scattered	22:30	14.5	14.9	SW	--	2.1	--	--	decreasing	decreasing	increasing	increasing	decreasing	decreasing
2008	4	19	Virga to Rain to Virga	Scattered	10:00	14.5	12.4	SE	--	2.9	--	--	decreasing	up - down	increasing	increasing	decreasing	decreasing
2008	4	25	Rain/Virga	Continuous	21:00	3.5	18.3	S	--	2.0	--	--	up - down	decreasing	up - down	increasing	decreasing	flat
2008	4	27	Rain to Virga to Rain	Continuous	19:30	23	10.8	SW	--	1.6	--	--	decreasing	decreasing	increasing	down - up	decreasing	decreasing

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