Virga (to Rain) to Snow Storm Summary of the 2007-2008 Winter Season (November - April) - 6 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

Orange = Virga to Rain to Snow

Jan. 16 = Virga to Snow to Freezing Rain/Snow Mix

* = 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
Rain to Virga (to Rain)
Virga to Rain (to Virga)
Rain/Virga
Rain to Snow
Snow (to Virga)
Virga (to Rain) to Snow
Virga (to Snow to Virga)
Continuity
Continuous
Scattered
Continuous (Snow)
Scattered (Snow)
AGL
Tall
Tall to Borderline
Tall to Shallow
Borderline
Borderline to Shallow
Borderline to Tall
Shallow (to Tall)
Average
All
Page
Temp. (°C)
5.1
-1.8
Wind Direction
218°
220°
Wind Speed (m/s)
3.3
3.5
Duration (hrs)
14.8
27.1
Snowfall (in) *
0.33
1.95
Trends
Wind Direction
Temperature
RH
Pressure
Year
Month
Day
AGL
Continuity
Start Time (UTC)
Duration (hrs)
Avg. Temp. (°C)
Avg.
At Storm Maturity
Wind Speed (m/s)
Snowfall (in)
SWE (in)
before**
during
before**
during
before**
during
2007
12
5
Tall to Borderline
Continuous
06:00
21
0.9
SW
W
3.0
0.2
0.09
increasing
up - down
flat
increasing
decreasing
down - up
2008
1
13
Tall to Shallow
Scattered
13:00
28
-0.8
SW
NW
3.0
0.6
0.04
decreasing
decreasing
increasing
decreasing
decreasing
flat
2008
1
16
Tall
Continuous
22:00
18.5
-3.9
E
E
4.6
1.8
0.33
decreasing
decreasing
increasing
increasing
decreasing
decreasing
2008
2
26
Tall to Shallow
Scattered
4:30
63
-4.3
W
NW
4.4
8.3
0.39
decreasing
decreasing
increasing
up - down
decreasing
increasing
2008
2
29
Borderline to Tall to Borderline
Scattered
9:00
22
0.3
S
SE
2.2
0.4
0.13
increasing
increasing
decreasing
increasing
increasing
decreasing
2008
3
24
Borderline to Shallow
Scattered
17:00
10
-3.1
NW
NW
3.7
0.4
0.02
increasing
decreasing
decreasing
increasing
increasing
increasing

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