Storm Summary of 2012-2013 Winter Season - 83 storms

Surface Observations from Amanda Park (AMANP, 8198) near Lake Quinault, WA

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

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

**Note: Missing most surface observations for 03/08 to 03/12.

* = 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 Types

Storm Continuity


Trends
Wind Direction
Temperature
RH
Pressure
Year
Month
Day
Type
AGL
Continuity
Start Time (UTC)
Duration (hrs)
Avg. Temp. (°C)
Avg.
At Storm Maturity
Wind Speed (m/s)
Prepitation (in)
before*
during
before*
during
before*
during
2012
11
29
Rain
Borderline to Tall
Scattered
03:50
13.0
11.2
E
E
4.2
0.40
down - up
up - down
up - down
down - up
increasing
decreasing
2012
11
29
Rain to Virga
Borderline to Tall
Scattered
16:50
12.8
9.0
NE
NE
3.1
0.42
decreasing
decreasing
increasing
increasing
decreasing
up - down
2012
11
30
Virga to Rain to Virga
Tall to Shallow to Tall
Scattered
05:38
16.2
9.4
E
NE
3.0
1.60
down - up
down - up
up - down
down - up
decreasing
down - up
2012
11
30
Rain
Tall
Scattered
22:18
23.9
8.5
E
E
2.8
1.72
increasing
down - up
up - down
flat
increasing
increasing
2012
12
01
Rain
Borderline to Tall to Borderline
Scattered
22:09
16.2
6.1
E
E
3.5
1.60
up - down
decreasing
up - down
increasing
up - down
down - up
2012
12
02
Rain
Tall
Scattered
14:49
23.3
6.4
E
W
3.0
1.58
decreasing
up - down
down - up
flat
down - up
increasing
2012
12
03
Rain
Shallow to Tall to Shallow
Scattered
14:07
20.8
6.6
E
E
4.2
1.90
decreasing
up - down
up - down
up - down
increasing
decreasing
2012
12
04
Rain
Borderline to Tall to Borderline
Scattered
16:08
17.8
6.7
SW
SW
2.4
0.60
increasing
decreasing
up - down
up - down
increasing
increasing
2012
12
05
Rain
Borderline to Shallow
Scattered
18:10
17.3
4.4
NE
NE
2.5
0.32
increasing
up - down
up - down
increasing
increasing
flat
2012
12
06
Rain
Borderline to Tall
Scattered
11:25
18.7
4.1
NE
N
2.5
0.89
down - up
down - up
flat
up - down
flat
down - up
2012
12
07
Rain
Shallow to Tall to Borderline
Scattered
06:06
12.6
4.1
NE
NE
3.8
0.25
down - up
increasing
up - down
flat
increasing
down - up
2012
12
08
Virga to Rain
Borderline to Shallow to Borderline
Scattered
01:14
3.4
2.8
S
SW
2.8
0.06
decreasing
flat
increasing
decreasing
increasing
increasing
2012
12
09
Rain to Virga to Rain
Shallow to Tall to Borderline
Continuous
00:57
4.6
4.5
NE
E
0.9
0.03
increasing
decreasing
decreasing
increasing
flat
increasing
2012
12
09
Rain
Shallow to Tall to Shallow
Scattered
19:11
3.0
5.3
E
E
4.0
0.28
increasing
increasing
up - down
up - down
flat
decreasing
2012
12
11
Virga to Rain
Tall to Shallow to Tall
Scattered
12:58
19.8
4.5
E
NE
3.1
0.67
decreasing
up - down
flat
flat
decreasing
decreasing
2012
12
12
Virga to Rain
Tall to Shallow to Borderline
Scattered
08:48
5.7
4.2
N
N
1.3
0.09
down - up
down - up
up - down
up - down
increasing
increasing
2012
12
13
Virga to Rain
Tall to Shallow
Continuous
21:11
10.6
3.2
NE
E
4.0
0.62
increasing
decreasing
decreasing
increasing
decreasing
decreasing
2012
12
15
Rain
Borderline to Tall to Shallow
Continuous
10:22
12.8
2.6
NE
E
3.8
0.53
down - up
increasing
decreasing
up - down
decreasing
decreasing
2012
12
15
Rain
Tall to Borderline
Scattered
23:07
13.7
1.8
S
SW
1.4
0.45
up - down
decreasing
up - down
up - down
decreasing
increasing
2012
12
16
Virga to Rain
Tall to Borderline to Tall
Scattered
14:41
20.0
2.7
NE
SW
6.7
2.23
up - down
increasing
down - up
down - up
increasing
decreasing
2012
12
17
Rain
Shallow to Tall to Shallow
Scattered
10:41
6.3
4.3
SW
SW
9.8
0.39
increasing
decreasing
flat
decreasing
decreasing
increasing
2012
12
17
Rain to Mixed
Shallow to Tall to Borderline
Scattered
17:01
12.2
2.0
S
S
3.1
0.09
up - down
decreasing
decreasing
down - up
increasing
increasing
2012
12
18
Mixed
Tall to Borderine
Scattered
05:41
13.4
0.6
NE
E
1.1
0.10
decreasing
increasing
increasing
up - down
increasing
increasing
2012
12
19
Mixed to Rain to Mixed
Tall to Shallow
Continuous
04:56
30.1
2.1
NE
N
3.9
2.26
decreasing
up - down
increasing
down - up
increasing
decreasing
2012
12
20
Mixed to Rain
Tall to Borderline to Tall
Continuous
11:01
12.6
1.7
NE
NE
3.0
0.74
decreasing
down - up
increasing
down - up
decreasing
increasing
2012
12
20
Rain to Virga to Rain
Tall to Shallow
Scattered
23:37
23.2
2.8
NE
NE
4.0
0.35
down - up
increasing
down - up
down - up
increasing
up - down
2012
12
22
Rain to Virga
Borderline to Tall
Continuous
14:42
4.3
3.9
NE
NE
2.8
0.10
up - down
increasing
down - up
decreasing
decreasing
up - down
2012
12
22
Rain
Tall to Borderline
Scattered
19:01
21.2
3.4
NE
SE
3.7
0.83
increasing
decreasing
decreasing
increasing
decreasing
increasing
2012
12
25
Virga to Rain
Tall to Shallow
Scattered
04:40
23.4
3.8
NE
S
4.9
1.24
up - down
increasing
up - down
down - up
decreasing
decreasing
2012
12
26
Rain
Shallow to Borderline to Shallow
Scattered
04:03
11.0
3.8
NE
NE
4.5
0.23
increasing
down - up
down - up
increasing
flat
increasing
2012
12
26
Rain to Virga
Shallow to Borderline
Continuous
15:33
13.8
4.3
E
NE
2.3
0.90
down - up
up - down
up - down
down - up
increasing
increasing
2012
12
31
Virga to Rain
Tall to Shallow
Continuous
12:39
8.7
2.5
NE
E
2.2
0.37
increasing
down - up
down - up
increasing
decreasing
increasing
2013
01
03
Virga to Rain to Virga
Tall to Borderline
Scattered
20:49
8.5
5.7
NE
NE
5.0
0.10
increasing
decreasing
decreasing
increasing
up - down
down - up
2013
01
05
Virga to Rain to Virga
Tall
Continuous
07:27
7.3
5.8
NE
NE
4.9
none
down - up
increasing
down - up
decreasing
decreasing
up - down
2013
01
05
Virga to Rain
Tall to Shallow
Scattered
21:21
13.6
6.4
NE
E
1.5
0.29
increasing
decreasing
decreasing
increasing
decreasing
increasing
2013
01
06
Rain
Shallow to Tall to Shallow
Continuous
22:36
16.6
4.2
NE
E
4.4
1.52
increasing
down - up
decreasing
up - down
up - down
decreasing
2013
01
08
Virga to Rain
Tall to Shallow
Continuous
07:50
7.8
4.3
NE
NE
4.5
0.02
decreasing
down - up
down - up
down - up
increasing
decreasing
2013
01
08
Rain
Shallow to Tall to Borderline
Scattered
15:37
7.0
4.4
NE
E
2.9
0.61
down - up
down - up
up - down
increasing
decreasing
decreasing
2013
01
08
Rain
Borderline to Tall to Borderline
Continuous
22:37
22.1
6.3
SW
W
3.3
2.63
increasing
up - down
increasing
decreasing
decreasing
down - up
2013
01
10
Rain to Virga to Rain
Tall to Shallow
Scattered
01:55
5.5
1.4
SE
SW
1.3
0.05
decreasing
decreasing
down - up
increasing
increasing
increasing
2013
01
23
Virga to Rain
Tall to Shallow
Continuous
01:46
24.6
6.0
E
NE
1.5
1.02
up - down
down - up
down - up
increasing
decreasing
down - up
2013
01
24
Virga to Rain
Tall to Shallow
Scattered
18:38
14.8
4.0
NE
NE
3.4
0.64
down - up
down - up
decreasing
down - up
decreasing
decreasing
2013
01
26
Rain
Borderline to Tall to Borderline
Continuous
06:54
17.1
3.3
NE
NE
1.9
0.99
decreasing
down - up
increasing
up - down
decreasing
down - up
2013
01
28
Rain
Shallow to Tall to Shallow
Continuous
12:28
16.7
4.3
S
SE
3.3
0.45
up - down
increasing
decreasing
up - down
increasing
down - up
2013
01
29
Rain
Shallow to Tall
Continuous
11:08
2.5
6.4
S
S
5.0
0.07
increasing
increasing
down - up
decreasing
increasing
increasing
2013
01
30
Rain
Tall to Shallow to Borderline
Scattered
02:06
22.7
5.8
NE
SW
1.6
0.47
up - down
down - up
down - up
decreasing
increasing
down - up
2013
02
03
Virga to Rain
Tall to Shallow
Continuous
21:52
7.1
6.3
NE
NE
0.1
0.05
increasing
decreasing
decreasing
increasing
up - down
decreasing
2013
02
04
Virga to Rain
Tall
Continuous
23:54
2.6
7.4
NW
W
1.5
none
increasing
decreasing
decreasing
increasing
decreasing
decreasing
2013
02
05
Rain
Tall to Shallow to Tall
Scattered
09:19
15.9
5.7
NE
E
2.6
1.32
up - down
down - up
decreasing
increasing
decreasing
decreasing
2013
02
06
Rain
Borderline to Tall to Borderline
Scattered
01:12
11.5
5.5
SW
E
1.0
0.34
increasing
decreasing
down - up
down - up
down - up
increasing
2013
02
06
Rain to Virga to Rain
Shallow to Tall to Shallow
Scattered
12:40
13.8
4.7
NE
NE
3.2
0.23
decreasing
up - down
flat
down - up
increasing
decreasing
2013
02
07
Virga to Rain
Borderline to Tall to Borderline
Scattered
02:25
13.5
4.6
E
NE
4.4
0.55
up - down
up - down
down - up
down - up
decreasing
increasing
2013
02
12
Virga to Rain
Tall to Shallow
Scattered
18:50
10.6
7.5
E
E
0.8
0.30
increasing
increasing
decreasing
down - up
increasing
decreasing
2013
02
19
Rain to Virga to Rain
Borderline to Tall to Shallow
Scattered
00:00
5.8
4.1
NE
NE
3.6
0.06
increasing
decreasing
decreasing
increasing
decreasing
decreasing
2013
02
20
Rain to Virga to Rain
Shallow to Tall to Shallow
Continuous
19:03
5.9
4.6
NE
N
1.8
0.26
increasing
up - down
decreasing
down - up
decreasing
decreasing
2013
02
21
Rain to Mixed to Rain
Shallow to Tall to Shallow
Scattered
11:06
18.3
2.4
NE
NE
1.7
0.58
down - up
down - up
up - down
up - down
increasing
down - up
2013
02
22
Rain
Borderline to Tall to Borderline
Continuous
05:24
17.6
3.4
NE
NE
3.7
2.21
down - up
increasing
flat
up - down
increasing
decreasing
2013
02
22
Rain
Tall to Borderline
Scattered
22:59
23.0
3.4
S
S
3.5
0.71
down - up
down - up
decreasing
up - down
decreasing
increasing
2013
02
24
Rain
Shallow to Tall
Continuous
16:59
23.4
3.9
NE
SW
2.8
2.11
flat
increasing
down - up
decreasing
decreasing
down - up
2013
02
25
Rain
Shallow to Tall to Borderline
Scattered
16:22
12.1
4.6
W
W
4.2
0.26
increasing
up - down
decreasing
down - up
increasing
increasing
2013
02
26
Rain
Shallow to Tall to Shallow
Scattered
16:21
18.1
3.9
NE
NE
2.4
0.51
down - up
up - down
decreasing
down - up
flat
decreasing
2013
02
27
Virga to Rain
Tall
Scattered
22:22
22.0
5.5
NE
NE
5.0
0.54
increasing
down - up
decreasing
increasing
up - down
down - up
2013
02
28
Rain
Shallow to Tall to Shallow
Scattered
20:22
8.8
6.9
NE
E
2.9
0.82
increasing
up - down
increasing
down - up
increasing
increasing
2013
03
01
Rain
Tall to Shallow
Scattered
05:12
12.9
7.8
NW
E
1.9
1.59
decreasing
increasing
increasing
decreasing
increasing
increasing
2013
03
01
Rain
Tall to Shallow
Scattered
18:08
20.4
8.0
E
SW
2.0
1.22
down - up
decreasing
down - up
flat
increasing
decreasing
2013
03
02
Rain
Shallow to Tall to Borderline
Scattered
14:34
11.0
6.9
SW
SW
3.3
0.44
flat
up - down
flat
decreasing
decreasing
down - up
2013
03
03
Rain
Borderline to Shallow
Scattered
07:21
4.0
2.4
S
S
1.3
0.04
decreasing
decreasing
down - up
flat
increasing
increasing
2013
03
05
Virga to Rain
Shallow to Tall to Shallow
Continuous
09:50
15.9
4.7
NE
E
2.1
0.31
down - up
up - down
increasing
increasing
decreasing
decreasing
2013
03
06
Rain
Borderline to Tall to Shallow
Scattered
14:21
18.0
5.0
SW
SW
1.5
0.45
flat
up - down
down - up
down - up
decreasing
increasing
2013
03
10
Virga to Rain
Shallow to Tall to Shallow
Scattered
09:19
9.0
3.1
**
**
**
**
down - up
increasing
**
**
**
**
2013
03
11
Virga to Rain
Tall to Shallow to Borderline
Scattered
19:37
15.6
7.6
**
**
**
**
increasing
decreasing
**
**
**
**
2013
03
12
Rain
Borderline to Tall to Shallow
Continuous
09:14
27.0
7.7
E
E
1.2
1.83
**
decreasing
**
down - up
**
increasing
2013
03
13
Rain
Shallow to Tall
Continuous
12:15
15.1
8.4
NE
NE
1.5
1.60
up - down
increasing
down - up
decreasing
increasing
decreasing
2013
03
14
Virga to Rain
Tall to Shallow to Borderline
Scattered
08:23
23.9
7.2
E
E
3.3
none
decreasing
decreasing
down - up
down - up
decreasing
increasing
2013
03
15
Rain
Borderline to Shallow
Scattered
19:04
15.1
8.3
SW
NW
0.8
0.44
increasing
decreasing
decreasing
increasing
flat
decreasing
2013
03
16
Rain
Shallow to Tall
Scattered
10:09
22.9
5.0
SW
SW
3.4
0.96
decreasing
decreasing
flat
decreasing
decreasing
down - up
2013
03
17
Rain
Shallow to Borderline
Scattered
09:03
17.4
3.1
S
S
2.4
0.21
decreasing
up - down
up - down
down - up
increasing
increasing
2013
03
18
Rain
Shallow to Borderline to Shallow
Scattered
02:25
13.8
3.1
SW
S
2.5
0.40
up - down
increasing
down - up
up - down
up - down
decreasing
2013
03
19
Virga to Rain
Tall to Shallow
Continuous
18:31
20.1
6.2
NE
NE
5.2
2.36
increasing
down - up
decreasing
increasing
decreasing
decreasing
2013
03
20
Rain to Virga to Rain
Shallow to Tall to Borderline
Scattered
14:38
15.9
4.2
SW
SW
4.7
0.59
increasing
decreasing
down - up
flat
decreasing
increasing
2013
03
21
Mixed to Rain to Mixed
Borderline to Tall
Scattered
12:18
18.2
2.4
S
SW
2.6
0.28
decreasing
up - down
increasing
down - up
increasing
increasing
2013
03
27
Virga to Rain
Tall to Shallow to Tall
Scattered
12:01
5.1
7.2
NE
SE
2.3
none
decreasing
flat
down - up
up - down
decreasing
flat
2013
03
28
Virga to Rain to Virga
Borderline to Tall to Borderline
Scattered
20:12
5.3
11.3
NW
E
1.5
0.17
increasing
decreasing
decreasing
increasing
increasing
flat

Version 1, Lake Quinault

web page credits: Spencer Rhodes, Micheal Tai Bryant, Sandra Yuter

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. ATM-09208420
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s)
and do not necessarily reflect the view of the National Science Foundation (NSF).

contacts:
Dr. Sandra Yuter seyuter@ncsu.edu