Poga Mountain, NC: 2007-2008 Winter Season Storms

Virga to Rain (to Virga) Storm Summary of 2007-2008 Winter Season (November - April) - 17 Storms

Poga Mountain, North Carolina ( Elevation: 1137 m)

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

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

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

SWE = Snow-water equivalent

Feb. 24 = Virga to Rain/Freezing Rain

Orange = Virga to Rain to Virga

* = 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)	Classification of All Storms

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	7.2
Wind Direction	218°	186°
Wind Speed (m/s)	3.3	3.0
Duration (hrs)	14.8	13.4
Snowfall (in) *	0.33	--

												Trends
												Temperature		RH		Pressure
Year	Month	Day	AGL	Continuity	Start Time (UTC)	Duration (hrs)	Avg. Temp. (°C)	Avg. Wind Direction	Wind Speed (m/s)	Avg. RH	Avg. Pressure (hPa)	before**	during	before**	during	before**	during
2007	11	9	Borderline	Scattered	22:30	4.5	6.4	W	2.7	95%	1015	decreasing	decreasing	down - up	increasing	decreasing	decreasing
2007	11	12	Tall to Borderline	Scattered	05:00	6	8.8	SW	1.3	41%	1026	decreasing	increasing	decreasing	increasing	increasing	flat
2007	11	13	Tall to Borderline	Scattered	00:00	40	10.0	W	1.9	83%	1021	decreasing	increasing	increasing	increasing	decreasing	decreasing
2007	12	22	Tall	Scattered	21:30	19	7.0	SE	5.2	94%	1018	increasing	increasing	flat	decreasing	decreasing	decreasing
2007	12	25	Tall to Borderline	Scattered	20:00	18.5	1.7	SW	2.4	54%	1020	increasing	decreasing	decreasing	increasing	decreasing	decreasing
2008	1	9	Tall to Shallow	Scattered	5:00	7	11.1	SE	3.5	87%	1017	increasing	up - down	flat	increasing	decreasing	increasing
2008	1	29	Tall	Scattered	0:00	12	6.9	S	1.5	33%	1016	decreasing	flat	flat	flat	flat	increasing
2008	1	29	Tall to Borderline	Scattered	21:30	10	7.0	SE	3.9	75%	1006	decreasing	decreasing	increasing	increasing	decreasing	decreasing
2008	1	31	Tall to Borderline	Scattered	15:30	26.5	0.5	SE	5.9	69%	1018	increasing	increasing	decreasing	increasing	increasing	decreasing
2008	2	3	Tall	Continuous	22:00	5	6.0	SE	2.1	71%	1023	increasing	decreasing	decreasing	increasing	decreasing	up - down
2008	2	12	Tall	Scattered	14:30	6	6.8	S	4.6	70%	1016	increasing	decreasing	flat	increasing	decreasing	decreasing
2008	2	24	Tall to Shallow	Continuous	15:00	14	1.4	S	1.9	87%	1016	increasing	decreasing	decreasing	down - up	increasing	decreasing
2008	3	14	Tall	Scattered	16:00	11.5	9.7	SW	2.9	74%	1007	increasing	decreasing	decreasing	increasing	decreasing	down - up
2008	3	29	Tall to Borderline	Continuous	21:30	16	0.2	E	5.6	87%	1025	decreasing	decreasing	flat	down - up	flat	increasing
2008	4	2	Borderline	Scattered	22:00	2	11.6	NW	1.1	--	--	increasing	decreasing	decreasing	flat	decreasing	increasing
2008	4	11	Tall	Scattered	22:30	14.5	14.9	SW	2.1	81%	1011	decreasing	decreasing	increasing	increasing	decreasing	decreasing
2008	4	19	Tall to Borderline to Tall	Scattered	10:00	14.5	12.4	SE	2.9	76%	1014	decreasing	up - down	increasing	increasing	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

This material is based upon work supported by the National Science Foundation under Grant No. 0544766. Any opinions, findings and conclusions or recomendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).

contacts:
Dr. Sandra Yuter seyuter@ncsu.edu

Dr. L. Baker Perry perrylb@appstate.edu