Radar:       Or click here for map
Radar: Vance AFB OK
36.73 N - 98.12W
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
17179
 1024 65
Wind
9657
 1077 55
Tornadoes
1479
 221 18
Total
28315
 2322 80
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
2
1:46
Sig Severe
2
1:562
Tornadoes
4
1:882
F2+ Torn
17
1:5,902
* 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: 48%
10 year report increase: -14%
5 year report increase: -36%
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:
10.6 on 12 May

Primary Season:
Mar 24 - Jul 28
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:
12% at 01 UTC
See hourly table below

Climatological Threat Potential
Threat
Avg Prob of Occurrence
Return Interval
Natl Rank
Any Tornado
0.063%
1585 yrs
1
F2+ Tornado
0.056%
1797 yrs
1
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
76
27
85
31
19
11
114
41
1981
105
37
72
36
64
26
233
65
1982
119
44
137
48
61
28
241
68
1983
232
37
136
39
59
19
350
56
1984
295
55
171
44
61
18
417
72
1985
412
56
220
61
29
20
470
81
1986
600
63
245
56
44
19
688
81
1987
321
60
279
52
21
12
363
77
1988
227
45
153
47
16
11
259
66
1989
507
67
260
48
15
10
537
77
1990
535
71
198
42
66
18
667
80
1991
604
66
226
60
100
22
804
86
1992
817
83
284
50
54
21
925
90
1993
663
69
332
49
59
19
781
80
1994
686
79
440
66
33
13
752
90
1995
589
62
387
46
45
17
679
69
1996
953
87
554
69
27
18
1007
100
1997
668
74
427
57
67
18
802
80
1998
726
77
501
69
84
20
894
94
1999
966
81
524
70
120
25
1206
98
2000
720
65
622
58
44
22
808
81
2001
1262
89
730
74
78
22
1418
99
2002
1146
71
626
62
70
21
1286
81
2003
984
76
458
65
67
14
1118
92
2004
1237
81
470
55
92
16
1421
84
2005
950
75
613
54
50
16
1050
85
2006
779
71
507
72
34
14
847
94
AVG
636
65
358
55
55
18
1049
80


Violent Tornadoes
Date
F
Deaths
Injuries
1981 18-May 0100 UTC
F4
0
2
1981 23-May 0049 UTC
F4
0
0
1982 19-Mar 0555 UTC
F4
0
12
1984 27-Apr 0405 UTC
F4
3
37
1984 29-Apr 1520 UTC
F4
1
60
1990 13-Mar 2234 UTC
F5
1
60
1990 13-Mar 2330 UTC
F5
1
0
1991 27-Mar 0045 UTC
F4
0
5
1991 26-Apr 2257 UTC
F5
17
225
1991 26-Apr 2330 UTC
F4
0
6
1991 26-Apr 2330 UTC
F4
1
0
1991 27-Apr 0110 UTC
F4
1
24
1991 27-Apr 0245 UTC
F4
0
22
1992 16-Jun 0335 UTC
F4
0
10
1993 24-Apr 2350 UTC
F4
7
100
1995 09-Jun 0045 UTC
F4
0
0
1999 04-May 0113 UTC
F4
6
150
1999 03-May 2326 UTC
F5
36
583
1999 04-May 0210 UTC
F4
1
11
1999 04-May 0225 UTC
F4
2
26
2001 22-Apr 0215 UTC
F4
1
28
2003 08-May 2210 UTC
F4
0
134
2004 13-May 0140 UTC
F4
0
1

Monthly Averages
Month
Hail
Wind
Torn
Total
Jan
4
1
0
5
Feb
8
2
0
10
Mar
52
12
5
69
Apr
118
31
8
157
May
176
62
22
261
Jun
131
88
9
227
Jul
47
70
2
118
Aug
33
52
1
86
Sep
40
25
2
67
Oct
13
5
3
20
Nov
10
6
1
16
Dec
3
1
0
4

Hourly Averages
UTC
Hail
Wind
Torn
Total
00
2130
854
259
3243
01
2090
931
238
3259
02
1712
920
164
2796
03
1358
947
99
2404
04
1042
801
69
1912
05
836
697
55
1588
06
562
556
21
1139
07
361
458
6
825
08
251
382
5
638
09
220
254
4
478
10
163
163
6
332
11
179
132
5
316
12
123
109
11
243
13
119
93
5
217
14
137
90
4
231
15
143
64
3
210
16
151
68
3
222
17
204
88
16
308
18
249
85
14
348
19
338
126
27
491
20
558
237
45
840
21
893
367
79
1339
22
1472
519
142
2133
23
1888
716
199
2803

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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