Poga Mountain, NC: 2007-2008 Winter Season Storms

Storm Summary with Scattered Profile of the 2007-2008 Winter Season (November - April) - 60 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)

SWE = Snow-water equivalent

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

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

* = 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°	227°
Wind Speed (m/s)	3.3	3.2
Duration (hrs)	14.8	15.7
Snowfall (in) *	0.33	1.17

													Trends
								Wind Direction					Temperature		RH		Pressure
Year	Month	Day	Type	AGL	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	6	Rain	Tall to Borderline	01:30	9	8.5	W	--	2.9	--	--	decreasing	decreasing	increasing	increasing	decreasing	decreasing
2007	11	9	Virga to Rain	Borderline	22:30	4.5	6.4	W	--	2.7	--	--	decreasing	decreasing	down - up	increasing	decreasing	decreasing
2007	11	12	Virga to Rain	Tall to Borderline	05:00	6	8.8	SW	--	1.3	--	--	decreasing	increasing	decreasing	increasing	increasing	flat
2007	11	13	Virga to Rain	Tall to Borderline	00:00	40	10.0	W	--	1.9	--	--	decreasing	increasing	increasing	increasing	decreasing	decreasing
2007	11	14	Rain to Snow	Tall to Shallow	23:00	25	4.7	SW	NW	3.5	0.1	0.01	increasing	decreasing	decreasing	up - down	decreasing	down - up
2007	11	19	Rain	Borderline	10:30	10	9.6	W	--	2.0	--	--	down - up	flat	decreasing	increasing	decreasing	up - down
2007	11	22	Rain to Snow	Tall to Shallow	00:30	25	9.4	SW	NW	2.2	trace	0.02	decreasing	decreasing	increasing	increasing	decreasing	down - up
2007	11	25	Rain/Virga	Tall	00:00	24	5.7	SE	--	1.8	--	--	decreasing	increasing	increasing	increasing	decreasing	decreasing
2007	11	26	Rain	Tall to Shallow	09:30	27	10.0	SW	--	3.5	--	--	increasing	decreasing	flat	flat	decreasing	down - up
2007	12	7	Freezing rain/sleet to Virga	Tall	4:30	15.5	1.9	SE	SE	1.8	trace	0.01	decreasing	increasing	increasing	up - down	increasing	flat
2007	12	8	Rain/Light Rain	Borderline	13:00	14.5	11.7	W	--	2.3	--	--	increasing	increasing	increasing	increasing	increasing	increasing
2007	12	12	Rain	Tall	17:00	5.5	12.9	W	--	2.3	--	--	increasing	decreasing	flat	increasing	flat	flat
2007	12	13	Rain/Light Rain	Shallow to Tall	16:30	7	12.3	NW	--	3.7	--	--	increasing	decreasing	decreasing	increasing	decreasing	down - up
2007	12	15	Rain to Snow	Tall to Shallow	20:00	33.5	-1.9	SE	S	4.8	4.1	0.11	decreasing	decreasing	increasing	decreasing	decreasing	down - up
2007	12	19	Snow	Borderline to Shallow	9:30	5	-0.4	SW	W	2.0	trace	0.01	increasing	increasing	flat	increasing	decreasing	flat
2007	12	20	Rain to Virga to Rain	Tall	23:00	17.5	1.1	E	--	5.3	--	--	decreasing	decreasing	increasing	flat	decreasing	increasing
2007	12	22	Virga to Rain	Tall	21:30	19	7.0	SE	--	5.2	--	--	increasing	increasing	flat	decreasing	decreasing	decreasing
2007	12	25	Virga to Rain	Tall to Borderline	20:00	18.5	1.7	SW	--	2.4	--	--	increasing	decreasing	decreasing	increasing	decreasing	decreasing
2007	12	28	Rain	Tall to Borderline	15:00	16	9.5	SE	--	3.3	--	--	increasing	increasing	decreasing	flat	flat	decreasing
2007	12	30	Rain to Virga to Rain	Tall to Shallow	13:00	13	5.0	SW	--	2.4	--	--	flat	up - down	increasing	increasing	decreasing	decreasing
2008	1	1	Snow	Shallow	8:00	23	-9.4	NW	NW	4.6	4.0	0.13	increasing	decreasing	decreasing	increasing	decreasing	increasing
2008	1	6	Rain	Tall	6:00	14.5	8.7	SW	--	1.4	--	--	increasing	increasing	increasing	decreasing	decreasing	up - down
2008	1	9	Virga to Rain	Tall to Shallow	5:00	7	11.1	SE	--	3.5	--	--	increasing	up - down	flat	increasing	decreasing	increasing
2008	1	10	Rain	Tall	8:30	5.5	3.2	S	--	2.8	--	--	decreasing	decreasing	up - down	increasing	flat	decreasing
2008	1	11	Rain/Virga	Tall	0:00	13	9.2	S	--	3.9	--	--	increasing	decreasing	increasing	down - up	decreasing	decreasing
2008	1	13	Virga to Rain to Snow	Tall to Shallow	13:00	28	-0.8	SW	NW	3.0	0.6	0.04	decreasing	decreasing	increasing	decreasing	decreasing	flat
2008	1	15	Snow	Shallow	11:30	4.5	-8.4	NW	NW	4.9	0.2	0.01	decreasing	increasing	flat	increasing	flat	increasing
2008	1	19	Virga to Snow to Virga	Tall	5:30	21	-4.0	W	NW	2.3	0.4	0.04	decreasing	decreasing	decreasing	increasing	increasing	decreasing
2008	1	22	Rain/Light Rain	Borderline to Tall	14:00	12	2.9	SW	--	1.5	--	--	increasing	up - down	flat	increasing	flat	decreasing
2008	1	24	Snow	Shallow	12:00	14	-7.1	NW	NW	4.7	0.8	0.04	decreasing	decreasing	increasing	decreasing	flat	increasing
2008	1	26	Virga	Tall to Borderline	3:00	12	-4.2	SW	--	1.2	--	--	decreasing	decreasing	increasing	increasing	decreasing	decreasing
2008	1	29	Virga to Rain to Virga	Tall	0:00	12	6.9	S	--	1.5	--	--	decreasing	flat	flat	flat	flat	increasing
2008	1	29	Virga to Rain	Tall to Borderline	21:30	10	7.0	SE	--	3.9	--	--	decreasing	decreasing	increasing	increasing	decreasing	decreasing
2008	1	31	Virga to Rain	Tall to Borderline	15:30	26.5	0.5	SE	--	5.9	--	--	increasing	increasing	decreasing	increasing	increasing	decreasing
2008	2	10	Virga/Light Rain	Borderline	18:30	2	0.8	W	--	6.7	--	--	increasing	decreasing	increasing	increasing	flat	flat
2008	2	12	Virga to Rain to Virga	Tall	14:30	6	6.8	S	--	4.6	--	--	increasing	decreasing	flat	increasing	decreasing	decreasing
2008	2	13	Rain	Borderline to Tall to Shallow	5:00	11.5	6.2	SW	--	2.6	--	--	increasing	decreasing	increasing	increasing	decreasing	decreasing
2008	2	19	Virga to Snow to Virga	Borderline	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	Borderline	19:00	4	5.7	W	--	5.4	--	--	increasing	decreasing	decreasing	increasing	decreasing	increasing
2008	2	22	Rain to Virga	Borderline to Tall	13:00	5	7.5	SE	--	1.8	--	--	increasing	increasing	increasing	down - up	decreasing	decreasing
2008	2	23	Rain	Borderline to Shallow	12:00	6.5	4.2	NW	--	2.8	--	--	decreasing	decreasing	flat	down - up	flat	increasing
2008	2	26	Virga to Rain to Snow	Tall to Shallow	4:30	63	-4.3	W	NW	4.4	8.3	0.39	decreasing	decreasing	increasing	up - down	decreasing	increasing
2008	2	29	Virga to Snow	Shallow to Tall to Borderline	9:00	22	0.3	S	SE	2.2	0.4	0.13	increasing	increasing	decreasing	increasing	increasing	decreasing
2008	3	8	Rain to Snow	Tall to Shallow	1:30	25.5	0.6	SW	NW	4.4	1.5	0.11	increasing	increasing	increasing	decreasing	decreasing	increasing
2008	3	14	Virga to Rain	Tall	16:00	11.5	9.7	SW	--	2.9	--	--	increasing	decreasing	decreasing	increasing	decreasing	down - up
2008	3	15	Rain	Tall to Shallow	16:30	12	7.1	SW	--	2.9	--	--	increasing	decreasing	decreasing	increasing	flat	down - up
2008	3	19	Rain to Snow	Tall to Shallow	15:30	21	6.2	SW	NW	4.6	0.7	0.17	increasing	decreasing	down - up	down - up	decreasing	down - up
2008	3	24	Virga to Snow	Borderline to Shallow	17:00	10	-3.1	NW	NW	3.7	0.4	0.02	increasing	decreasing	decreasing	increasing	increasing	increasing
2008	3	28	Rain	Shallow to Tall	16:00	23.5	10.1	SW	--	2.2	--	--	increasing	decreasing	increasing	increasing	increasing	increasing
2008	3	31	Rain/Virga	Tall	10:30	25.5	10.0	SE	--	2.8	--	--	increasing	increasing	flat	down - up	decreasing	decreasing
2008	4	2	Virga to Rain to Virga	Borderline	22:00	2	11.6	NW	--	1.1	--	--	increasing	decreasing	decreasing	flat	decreasing	increasing
2008	4	3	Rain	Tall	7:00	18.5	4.4	E	--	4.6	--	--	decreasing	flat	increasing	increasing	flat	decreasing
2008	4	4	Rain to Virga to Rain	Borderline to Tall	18:00	34	9.2	SW	--	2.4	--	--	up - down	decreasing	down - up	flat	decreasing	up - down
2008	4	11	Virga to Rain	Tall	22:30	14.5	14.9	SW	--	2.1	--	--	decreasing	decreasing	increasing	increasing	decreasing	decreasing
2008	4	13	Rain	Shallow	5:00	1.5	4.6	W	--	4.6	--	--	decreasing	decreasing	increasing	increasing	increasing	flat
2008	4	13	Snow	Borderline to Shallow	18:00	11	2.7	NW	NW	4.4	0.3	0.06	flat	decreasing	flat	increasing	increasing	increasing
2008	4	14	Snow to Virga	Borderline	16:30	14.5	-0.9	NW	NW	2.9	0.4	0.08	increasing	decreasing	decreasing	increasing	increasing	increasing
2008	4	19	Virga to Rain to Virga	Tall to Borderline to Tall	10:00	14.5	12.4	SE	--	2.9	--	--	decreasing	up - down	increasing	increasing	decreasing	decreasing
2008	4	20	Rain	Borderline	9:30	13.5	6.3	NW	--	2.3	--	--	decreasing	increasing	down - up	decreasing	decreasing	increasing
2008	4	29	Rain to Snow	Borderline to Tall to Borderline	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