Storm Summary with Tall to Shallow Vertical Profile (AGL) of the 2006-2007 Winter Season (November - March) - 11 Storms

Portland International Airport Weather Station, Oregon (45°35'N , 122°36'W / Elevation: 5.8 m)
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Storm Summary of 2005-2006 Winter Season (November - March)

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

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

Storm Summary of 2008-2009 Winter Season (December - March)

Storm Summary of 2010-2011 Winter Season (November - March)

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

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

* = 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
Virga to Rain
Rain to Virga
Freezing Rain/Snow
Virga to Rain to Virga
Rain to Virga to Rain
Virga
Unknown
Continuity
Continuous
Scattered
Average
All
Page
Temp. (°C)
7.28
7.29
RH (%)
78.8
85.3
Wind Direction
165°
154°
Wind Speed (m/s)
8.6
9.7
Pressure (hPa)
1019
1019
Precipitation (in)
0.59
1.03
Total Precipitation (in.)
10.32
AGL
Tall
Tall to Borderline
Tall to Borderline to Tall
Tall to Shallow to Borderline / Tall
Tall to Shallow
Borderline
Borderline to Shallow
Borderline to Tall to Shallow
Borderline to Tall to Borderline
Shallow
Shallow to Borderline to (Shallow)
Shallow to Tall to Shallow
Shallow to Tall to Borderline
Avg. Duration (hrs)
29.68
Trends
Wind Direction
Temperature
RH
Pressure
Year
Month
Day
Type
Continuity
Start Time (UTC)
Duration (hrs)
Avg. Temp. (°C)
Avg.
At Storm Maturity
Wind Speed (m/s)
Precip. (in)
before*
during
before*
during
before*
during
2006
11
04
Virga to Rain
Scattered
14:00
19.5
14.9
S
S
9.5
0.70
flat
up - down
flat
down - up
increasing
down - up
2006
11
05
Virga to Rain
Continuous
15:00
59.5
16.0
NW
NW
11.2
5.99
decreasing
up - down
increasing
decreasing
increasing
down - up
2006
11
12
Virga to Rain
Scattered
20:30
46
9.4
S
SE
16.2
0.44
increasing
up - down
decreasing
increasing
down - up
decreasing
2006
11
19
Virga to Rain
Continuous
12:30
15
8.0
SE
SE
11.7
0.73
flat
flat
flat
increasing
flat
down - up
2006
12
24
Rain
Continuous
15:30
22
5.8
SE
SE
12.7
1.37
increasing
down - up
decreasing
increasing
decreasing
down - up
2007
01
01
Rain
Continuous
17:30
9
3.1
SW
SW
11.7
0.12
increasing
down - up
flat
up - down
flat
decreasing
2007
01
16
Snow
Scattered
16:00
9.5
-2.4
S
S
9.5
0.05
up - down
increasing
increasing
down - up
decreasing
increasing
2007
01
21
Virga to Rain to Virga
Scattered
08:30
25
2.9
SE
NE
0.9
none
decreasing
down - up
decreasing
flat
increasing
increasing
2007
02
07
Virga to Rain
Scattered
09:30
32.5
5.8
SE
SE
9.4
0.11
flat
up - down
flat
down - up
decreasing
increasing
2007
02
28
Rain
Scattered
12:00
73
4.2
S
SE
8.4
0.65
up - down
increasing
flat
down - up
increasing
increasing
2007
03
12
Rain to Virga to Rain
Scattered
06:30
15.5
12.5
W
SW
5.5
0.16
decreasing
decreasing
increasing
up - down
down - up
increasing

Version 1, 14 August 2012

web page credits: Micheal Tai Bryant, Sandra Yuter

This research is a collaboration by the
Department of Marine, Earth, and Atmospheric Sciences, North Carolina 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