Radar:       Or click here for map
Radar: Boise ID
43.48 N - 116.23W
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
232
1 6
Wind
445
32 8
Tornadoes
79
3 2
Total
756
36 13
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
1:1,725
Sig Severe
N/A
1:36,229
Tornadoes
N/A
1:16,509
F2+ Torn
N/A
1:434,745
* 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: 589%
10 year report increase: 41%
5 year report increase: 417%

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:
0.3 on 17 Jun

Primary Season:
Apr 14 - Sep 07

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
0
0
0
0
0
0
0
0
1981
2
2
6
4
0
0
2
5
1982
6
2
15
5
0
0
6
6
1983
0
0
5
5
1
1
2
6
1984
8
5
14
6
2
2
12
12
1985
2
2
7
4
2
2
6
7
1986
3
3
2
1
4
4
11
7
1987
2
2
26
7
2
2
6
9
1988
0
0
9
5
5
3
10
8
1989
2
2
13
10
0
0
2
10
1990
1
1
10
7
6
6
13
13
1991
6
6
10
6
6
5
18
12
1992
9
7
30
8
2
1
13
13
1993
6
6
35
15
6
4
18
21
1994
6
4
14
9
0
0
6
12
1995
43
23
37
17
5
5
53
34
1996
10
8
31
14
3
1
16
19
1997
16
11
15
9
5
4
26
22
1998
29
15
18
13
5
5
39
27
1999
5
5
6
4
0
0
5
8
2000
5
4
8
5
6
3
17
9
2001
6
4
3
3
3
2
12
9
2002
4
4
43
11
2
2
8
15
2003
11
7
33
12
2
2
15
16
2004
16
10
19
11
4
2
24
20
2005
7
7
7
4
2
1
11
9
2006
27
14
29
14
6
2
39
24
AVG
9
6
16
8
3
2
28
13


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
1
0
1
Apr
1
2
0
3
May
2
2
1
4
Jun
2
3
0
6
Jul
2
4
0
6
Aug
1
3
0
5
Sep
0
1
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
32
70
7
109
01
17
59
9
85
02
15
53
5
73
03
10
16
4
30
04
5
16
1
22
05
1
10
1
12
06
1
7
0
8
07
0
0
1
1
08
0
0
0
0
09
2
0
0
2
10
0
5
1
6
11
1
0
0
1
12
0
2
0
2
13
0
2
0
2
14
0
2
0
2
15
0
2
0
2
16
0
2
1
3
17
3
6
3
12
18
2
14
3
19
19
9
9
3
21
20
23
21
7
51
21
29
38
4
71
22
43
46
15
104
23
39
65
14
118

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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