Rain to Virga (to Rain) Storm Summary of 2007-2008 Winter Season (November - April) - 5 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

Orange = 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
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
6.7
Wind Direction
218°
173°
Wind Speed (m/s)
3.3
2.7
Duration (hrs)
14.8
18.5
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
12
20
Tall
Scattered
23:00
17.5
1.1
E
5.3
95%
1018
decreasing
decreasing
increasing
flat
decreasing
increasing
2007
12
30
Tall to Shallow
Scattered
13:00
13
5.0
SW
2.4
94%
1013
flat
up - down
increasing
increasing
decreasing
decreasing
2008
2
22
Borderline to Tall
Scattered
13:00
5
7.5
SE
1.8
89%
1012
increasing
increasing
increasing
down - up
decreasing
decreasing
2008
4
4
Borderline to Tall
Scattered
18:00
34
9.2
SW
2.4
95%
1014
up - down
decreasing
down - up
flat
decreasing
up - down
2008
4
27
Tall
Continuous
19:30
23
10.8
SW
1.6
94%
1015
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

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