Radar:       Or click here for map
Radar: Missoula MT
47.03 N - 113.98W
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
632
31 10
Wind
597
54 11
Tornadoes
35
1 1
Total
1264
86 17
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
1:1,032
Sig Severe
N/A
1:15,166
Tornadoes
N/A
1:37,264
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: 5500%
10 year report increase: 143%
5 year report increase: 96%

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:
0.7 on 08 Jul

Primary Season:
May 16 - Sep 04

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:
16% at 23 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
4
3
4
4
1
1
6
6
1981
4
4
8
7
2
1
8
11
1982
17
7
17
8
1
1
19
10
1983
11
8
14
8
1
1
13
12
1984
8
7
13
6
0
0
8
10
1985
10
5
4
3
0
0
10
8
1986
0
0
0
0
2
2
4
2
1987
9
7
21
8
2
2
13
14
1988
21
7
22
15
4
4
29
23
1989
10
7
35
15
0
0
10
18
1990
7
5
12
5
1
1
9
9
1991
10
8
5
5
3
3
16
15
1992
14
7
10
7
3
3
20
15
1993
22
13
35
18
4
2
30
25
1994
9
4
27
16
2
2
13
18
1995
39
19
29
12
1
1
41
25
1996
34
15
11
7
1
1
36
19
1997
49
21
20
7
4
4
57
25
1998
41
18
43
17
1
1
43
26
1999
20
9
10
9
0
0
20
14
2000
28
11
29
16
1
1
30
26
2001
27
10
30
17
0
0
27
21
2002
50
19
50
17
0
0
50
24
2003
38
14
47
17
0
0
38
21
2004
55
20
36
16
0
0
55
30
2005
32
12
17
9
0
0
32
15
2006
63
17
48
16
1
1
65
26
AVG
23
10
22
11
1
1
47
17


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
1
0
1
May
2
3
0
5
Jun
8
6
1
15
Jul
7
6
0
13
Aug
6
5
0
11
Sep
1
1
0
2
Oct
0
0
0
0
Nov
0
0
0
0
Dec
0
0
0
0

Hourly Averages
UTC
Hail
Wind
Torn
Total
00
83
105
3
191
01
84
76
3
163
02
57
76
3
136
03
49
53
3
105
04
31
21
0
52
05
11
14
0
25
06
6
8
0
14
07
2
9
1
12
08
4
6
0
10
09
2
4
0
6
10
1
1
0
2
11
3
3
0
6
12
2
0
0
2
13
3
2
0
5
14
2
0
0
2
15
3
1
0
4
16
2
3
0
5
17
5
2
1
8
18
10
5
1
16
19
17
7
3
27
20
37
22
1
60
21
60
26
4
90
22
51
70
5
126
23
107
83
7
197

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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