Radar:       Or click here for map
Radar: Grand Junction CO
39.05 N - 108.20W
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
200
 2 4
Wind
297
 33 7
Tornadoes
54
 3 2
Total
551
 38 12
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
1:2,367
Sig Severe
N/A
1:34,322
Tornadoes
N/A
1:24,153
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: 1067%
10 year report increase: 483%
5 year report increase: 141%
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 26 May

Primary Season:
May 03 - Oct 05
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:
17% at 22 UTC
See hourly table below

Climatological Threat Potential
Threat
Avg Prob of Occurrence
Return Interval
Natl Rank
Any Tornado
0.001%
115506 yrs
N/A
F2+ Tornado
0.001%
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
4
3
2
2
4
5
1981
2
2
4
4
1
1
4
7
1982
2
2
0
0
0
0
2
2
1983
3
3
7
7
0
0
3
8
1984
3
3
5
5
2
2
7
10
1985
2
2
6
6
1
1
4
9
1986
2
1
2
2
2
2
6
5
1987
0
0
2
2
0
0
0
2
1988
4
4
7
7
1
1
6
12
1989
2
2
10
6
1
1
4
9
1990
0
0
3
3
2
2
4
5
1991
2
2
2
2
4
3
10
7
1992
2
2
6
6
3
3
8
11
1993
3
2
14
9
2
2
7
12
1994
2
2
9
6
1
1
4
9
1995
1
1
6
4
1
1
3
5
1996
3
2
9
3
0
0
3
4
1997
9
3
11
8
2
2
13
12
1998
5
3
6
6
1
1
7
10
1999
8
7
13
11
5
5
18
19
2000
30
16
38
19
5
4
40
35
2001
15
8
13
10
1
1
17
16
2002
15
9
24
11
3
3
21
20
2003
29
7
6
5
0
0
29
12
2004
7
7
15
9
5
5
17
18
2005
25
12
34
15
4
4
33
26
2006
24
15
41
14
5
5
34
28
AVG
7
4
11
7
2
2
20
12


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
1
2
0
3
Jun
1
3
0
4
Jul
2
2
0
4
Aug
2
1
0
3
Sep
2
2
0
4
Oct
0
0
0
1
Nov
0
0
0
0
Dec
0
0
0
0

Hourly Averages
UTC
Hail
Wind
Torn
Total
00
21
36
3
60
01
8
34
5
47
02
3
19
2
24
03
4
17
0
21
04
2
5
1
8
05
2
5
0
7
06
3
2
0
5
07
1
0
0
1
08
0
0
0
0
09
0
4
0
4
10
2
0
0
2
11
2
0
0
2
12
0
1
0
1
13
1
0
0
1
14
0
1
0
1
15
0
1
0
1
16
0
0
2
2
17
6
1
1
8
18
6
7
2
15
19
9
16
1
26
20
28
21
7
56
21
39
37
9
85
22
40
43
8
91
23
23
47
13
83

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.
Go to SPC web page Go to NWS web site Go to NOAA web site