Radar:       Or click here for map
Radar: Portland OR
45.70 N - 122.95W
Period: 1980 - 2006      Range: 124 nm

Database Overview
All reports in the domain All severe weather reports during the period are plotted. Blue dots represent damaging wind, green dots represent large hail, and red dots represent tornadoes. [Click to enlarge]
  All Rpts Sig Rpts Avg Days
Hail
137
2 3
Wind
81
11 2
Tornadoes
68
1 2
Total
286
14 6
Significant severe reports Significant severe weather reports during the period are plotted. Only tornadoes F2 or stronger, wind gusts of 65 knots or stronger, and hail of 2" diameter or larger are plotted. [Click to enlarge]
Category
Rank*
Freq/mi2
Any Severe
N/A
1:4,560
Sig Severe
N/A
1:93,160
Tornadoes
N/A
1:19,180
F2+ Torn
N/A
1:1,304,235
* Compared to 141 national radar coverage areas studied.

Annual Report Information
Annual severe weather reports
Plot of annual severe weather reports in the search area. The dashed magenta line denotes a 5 year running average of all reports.

20 year report increase: N/A
10 year report increase: 345%
5 year report increase: 444%

See annual table below

Daily Report Information
Annual severe weather reports
Plot of daily severe weather reports in the search area. Lines denote a 7 day running mean.

Maximum daily value:
0.2 on 07 Aug

Primary Season:
Jun 08 - Aug 31

See monthly table below

Hourly Report Information
Annual severe weather reports
Plot of hourly severe weather reports in the search area. Values are in percent of total, and have been rounded to the nearest hour (UTC).

Maximum hourly value:
15% at 00 UTC

See hourly table below

Climatological Threat Potential
Threat
Avg Prob of Occurrence
Return Interval
Natl Rank
Any Tornado
0.000%
N/A
N/A
F2+ Tornado
0.000%
N/A
N/A
This table represents the average annual probability and return interval of each event for any point within the search domain.

Read details of computational method

Annual Totals
Year
Hail
Wind
Tornado
Total
 
Rpt
Days
Rpt
Days
Rpt
Days
Rpt
Days
1980
0
0
0
0
0
0
0
0
1981
0
0
0
0
1
1
2
1
1982
1
1
8
3
0
0
1
3
1983
2
1
3
2
1
1
4
4
1984
0
0
2
2
5
5
10
7
1985
1
1
1
1
1
1
3
2
1986
0
0
0
0
0
0
0
0
1987
1
1
0
0
0
0
1
1
1988
0
0
1
1
0
0
0
1
1989
0
0
4
2
3
3
6
5
1990
1
1
4
3
1
1
3
5
1991
7
3
6
4
6
3
19
8
1992
4
3
2
2
0
0
4
5
1993
2
2
5
2
2
2
6
5
1994
0
0
1
1
3
3
6
4
1995
1
1
3
2
0
0
1
3
1996
2
2
5
1
4
4
10
7
1997
5
4
0
0
16
10
37
14
1998
9
8
4
3
3
2
15
12
1999
16
10
3
3
2
2
20
12
2000
1
1
0
0
5
4
11
5
2001
6
4
1
1
2
2
10
6
2002
6
5
1
1
0
0
6
6
2003
10
4
1
1
2
2
14
6
2004
12
9
7
5
6
5
24
15
2005
11
4
11
3
3
2
17
6
2006
39
11
8
5
2
2
43
14
AVG
5
3
3
2
3
2
11
6


Violent Tornadoes
Date
F
Deaths
Injuries

Monthly Averages
Month
Hail
Wind
Torn
Total
Jan
0
0
0
0
Feb
0
0
0
0
Mar
0
0
0
0
Apr
0
0
0
1
May
1
1
0
2
Jun
1
0
0
2
Jul
1
1
0
2
Aug
1
1
0
2
Sep
0
0
0
1
Oct
0
0
0
0
Nov
0
0
0
0
Dec
0
0
0
0

Hourly Averages
UTC
Hail
Wind
Torn
Total
00
24
15
5
44
01
22
3
5
30
02
15
7
2
24
03
8
6
4
18
04
2
13
1
16
05
2
1
0
3
06
0
1
0
1
07
0
1
1
2
08
0
2
0
2
09
1
1
0
2
10
0
0
0
0
11
0
5
0
5
12
0
0
0
0
13
1
0
0
1
14
1
0
0
1
15
0
0
0
0
16
0
0
2
2
17
0
1
3
4
18
2
1
2
5
19
3
1
9
13
20
7
4
6
17
21
8
4
7
19
22
25
9
9
43
23
16
6
12
34

Click Here for tabular data (F2+ tornadoes).
Page Updated: Saturday 10-27-2007
If you have comments regarding this information, contact John Hart of the Storm Prediction Center.
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