Radar:       Or click here for map
Radar: Oklahoma City (Norman) OK
35.32 N - 97.27W
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
17000
957 63
Wind
10477
832 58
Tornadoes
1539
264 18
Total
29016
2053 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
1
1:45
Sig Severe
3
1:635
Tornadoes
1
1:847
F2+ Torn
4
1:4,940
* 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: 8%
10 year report increase: -22%
5 year report increase: -32%

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 13 May

Primary Season:
Mar 21 - Jul 09

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:
10% at 01 UTC

See hourly table below

Climatological Threat Potential
Threat
Avg Prob of Occurrence
Return Interval
Natl Rank
Any Tornado
0.052%
1915 yrs
11
F2+ Tornado
0.045%
2202 yrs
10
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
104
29
92
31
29
16
162
47
1981
93
33
71
37
82
34
257
64
1982
141
47
135
43
95
29
331
67
1983
331
48
224
50
80
23
491
69
1984
376
57
224
56
56
18
488
78
1985
428
61
228
58
36
21
500
77
1986
711
62
300
55
51
18
813
77
1987
380
64
236
56
19
11
418
81
1988
388
50
179
56
16
13
420
74
1989
596
65
310
50
19
13
634
75
1990
583
69
210
44
38
9
659
79
1991
718
65
319
64
68
19
854
86
1992
997
82
392
56
59
16
1115
90
1993
729
69
391
64
60
18
849
86
1994
887
80
569
73
61
17
1009
97
1995
798
70
560
58
85
21
968
81
1996
913
75
517
67
50
19
1013
88
1997
599
67
496
70
74
19
747
88
1998
654
69
543
77
94
23
842
101
1999
974
83
676
74
131
22
1236
98
2000
639
58
517
54
46
22
731
79
2001
820
69
796
74
67
19
954
87
2002
624
58
503
62
17
11
658
76
2003
1099
67
507
60
60
12
1219
80
2004
998
68
502
61
87
20
1172
80
2005
722
69
558
56
30
12
782
81
2006
698
64
422
66
29
15
756
83
AVG
630
63
388
58
57
18
1075
80


Violent Tornadoes
Date
F
Deaths
Injuries
1981 14-May 0015 UTC
F4
0
30
1981 18-May 0100 UTC
F4
0
2
1981 23-May 0049 UTC
F4
0
0
1982 02-Apr 2150 UTC
F5
0
29
1984 27-Apr 0405 UTC
F4
3
37
1984 29-Apr 1520 UTC
F4
1
60
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 11-May 2100 UTC
F4
0
3
1993 24-Apr 2350 UTC
F4
7
100
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
2003 08-May 2210 UTC
F4
0
134
2004 13-May 0140 UTC
F4
0
1

Monthly Averages
Month
Hail
Wind
Torn
Total
Jan
6
2
0
8
Feb
10
6
0
17
Mar
70
19
5
94
Apr
142
38
11
192
May
169
78
23
269
Jun
108
90
8
206
Jul
31
58
1
89
Aug
20
48
1
69
Sep
30
26
2
58
Oct
13
7
3
23
Nov
16
11
2
29
Dec
6
2
0
9

Hourly Averages
UTC
Hail
Wind
Torn
Total
00
1900
825
255
2980
01
1868
927
251
3046
02
1555
858
167
2580
03
1288
874
110
2272
04
1057
780
69
1906
05
819
759
52
1630
06
587
625
21
1233
07
399
506
16
921
08
318
471
7
796
09
241
317
6
564
10
188
244
10
442
11
166
207
8
381
12
138
137
12
287
13
143
120
5
268
14
142
103
8
253
15
155
97
7
259
16
181
97
8
286
17
256
98
9
363
18
325
108
23
456
19
460
193
30
683
20
676
342
51
1069
21
962
486
104
1552
22
1405
582
145
2132
23
1771
721
165
2657

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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