Rain Storm Summary of 2006-2007 Winter Season (November - March) - 31 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)

Grey highlighted rows: Drizzle or light rain

* = 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
7.54
RH (%)
78.8
78.8
Wind Direction
165°
176°
Wind Speed (m/s)
8.6
8.7
Pressure (hPa)
1019
1018
Precipitation (in)
0.59
0.60
Total Precipitation (in.)
15.06
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)
24.68
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)
Precip. (in)
before*
during
before*
during
before*
during
2006
11
8
Shallow to Tall to Shallow
Scattered
09:00
25.5
9.7
SE
SE
6.1
0.70
decreasing
up - down
flat
down - up
increasing
decreasing
2006
11
9
Shallow to Borderline
Scattered
20:00
2
11.1
SW
SW
8.3
0.01
increasing
down - up
decreasing
up - down
increasing
flat
2006
11
11
Shallow to Borderline to Shallow
Scattered
20:30
15.5
9.2
SW
S
13.1
0.03
increasing
decreasing
decreasing
increasing
increasing
increasing
2006
11
16
Shallow
Scattered
16:00
10.5
10.1
SE
SW
5.7
none
flat
increasing
flat
decreasing
increasing
increasing
2006
11
21
Tall to Borderline
Scattered
09:00
91.5
7.5
S
S
11.5
2.53
flat
decreasing
flat
increasing
decreasing
increasing
2006
11
25
Shallow
Scattered
11:00
1.5
5.1
W
W
6.3
none
down - up
up - down
up - down
decreasing
increasing
increasing
2006
11
28
Borderline to Shallow
Scattered
19:00
3.5
2.0
W
NW
5.0
0.01
flat
increasing
flat
decreasing
increasing
increasing
2006
12
04
Borderline to Shallow
Scattered
14:00
3
1.7
SE
SE
13.0
none
flat
increasing
down - up
up - down
up - down
increasing
2006
12
10
Tall
Scattered
15:00
51
9.2
SE
SE
13.8
1.00
flat
up - down
decreasing
increasing
increasing
increasing
2006
12
13
Tall
Scattered
00:30
71.5
8.6
S
SE
13.7
2.51
up - down
up - down
down - up
down - up
decreasing
down - up
2006
12
22
Borderline to Shallow
Continuous
02:30
7.5
4.1
S
NW
4.3
0.24
up - down
up - down
down - up
down - up
flat
increasing
2006
12
24
Tall to Shallow
Continuous
15:30
22
5.8
SE
SE
12.7
1.37
increasing
down - up
decreasing
increasing
decreasing
down - up
2006
12
25
Tall to Borderline
Scattered
23:00
46.5
5.8
SW
NW
7.8
1.36
up - down
down - up
decreasing
increasing
decreasing
down - up
2007
01
01
Tall to Shallow
Continuous
17:30
9
3.1
SW
SW
11.7
0.12
increasing
down - up
flat
up - down
flat
decreasing
2007
01
10
Shallow to Tall to Borderline
Scattered
00:00
27
3.1
SW
NW
8.0
0.50
increasing
decreasing
decreasing
down - up
decreasing
up - down
2007
01
20
Shallow
Scattered
22:00
5.5
6.5
SE
NE
3.1
0.01
increasing
decreasing
decreasing
increasing
up - down
increasing
2007
02
09
Borderline to Tall to Borderline
Continuous
07:00
12
7.8
SE
SE
12.9
0.29
down - up
down - up
up - down
up - down
decreasing
increasing
2007
02
10
Tall to Borderline
Scattered
18:00
45.5
8.3
SE
SE
10.1
0.41
increasing
down - up
increasing
decreasing
decreasing
down - up
2007
02
18
Tall to Shallow to Borderline
Scattered
02:00
23
9.4
SW
SW
8.4
0.04
up - down
decreasing
down - up
up - down
decreasing
up - down
2007
02
24
Borderline to Tall to Borderline
Continuous
03:00
27
5.1
SE
SE
12.5
1.05
up - down
down - up
increasing
down - up
increasing
decreasing
2007
02
27
Borderline to Tall to Borderline
Continuous
16:00
12
4.8
S
SE
19.1
0.29
increasing
increasing
decreasing
up - down
decreasing
increasing
2007
02
28
Tall to Shallow
Scattered
12:00
73
4.2
S
SE
8.4
0.65
up - down
increasing
flat
down - up
increasing
increasing
2007
03
09
Tall to Borderline
Scattered
10:00
25.5
8.9
SE
SE
8.6
0.12
decreasing
increasing
increasing
increasing
increasing
increasing
2007
03
10
Tall to Borderline to Tall
Scattered
16:30
17
12.5
SE
SE
9.0
0.03
flat
increasing
decreasing
down - up
down - up
decreasing
2007
03
14
Shallow
Scattered
18:00
24.5
8.2
S
SW
2.3
0.01
down - up
up - down
up - down
increasing
increasing
down - up
2007
03
15
Tall
Continuous
21:30
1
12.0
NE
NE
1.0
none
increasing
increasing
decreasing
decreasing
decreasing
decreasing
2007
03
18
Shallow
Continuous
16:00
2
14.3
SW
SW
8.4
none
flat
increasing
increasing
decreasing
flat
increasing
2007
03
19
Shallow to Tall to Borderline
Scattered
14:00
35
10.2
SW
W
9.6
1.32
decreasing
up - down
increasing
up - down
decreasing
increasing
2007
03
26
Borderline to Tall to Shallow
Scattered
16:00
32
8.0
SW
SW
7.3
0.12
down - up
down - up
up - down
up - down
decreasing
increasing
2007
03
28
Shallow
Scattered
07:30
8
5.2
SW
SW
2.5
none
decreasing
up - down
increasing
increasing
increasing
increasing
2007
03
30
Shallow to Borderline to Tall
Scattered
12:30
34.5
12.1
S
SW
5.0
0.34
decreasing
up - down
increasing
down - up
decreasing
decreasing

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