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Radar: Charleston SC
32.65 N - 81.03W
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
2978
67 27
Wind
6100
182 51
Tornadoes
582
77 10
Total
9660
326 59
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
67
1:135
Sig Severe
N/A
1:4,001
Tornadoes
N/A
1:2,241
F2+ Torn
70
1:16,938
* 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: 639%
10 year report increase: 173%
5 year report increase: 205%

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:
3.3 on 07 May

Primary Season:
Mar 16 - Aug 24

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:
14% at 22 UTC

See hourly table below

Climatological Threat Potential
Threat
Avg Prob of Occurrence
Return Interval
Natl Rank
Any Tornado
0.011%
8754 yrs
70
F2+ Tornado
0.009%
11695 yrs
71
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
12
8
54
33
17
13
46
44
1981
9
6
39
21
11
8
31
27
1982
26
10
51
28
6
5
38
34
1983
15
8
122
42
18
12
51
46
1984
68
20
112
35
24
7
116
41
1985
58
17
115
29
4
4
66
35
1986
32
15
106
40
7
5
46
45
1987
25
16
80
40
2
2
29
49
1988
69
20
142
42
2
2
73
45
1989
16
10
225
47
13
7
42
52
1990
43
24
151
43
6
6
55
48
1991
49
15
174
37
12
8
73
44
1992
43
17
149
43
13
9
69
52
1993
75
22
125
42
9
8
93
51
1994
56
20
223
47
26
9
108
60
1995
142
41
419
70
57
14
256
79
1996
140
35
232
70
21
13
182
79
1997
139
42
326
69
19
9
177
77
1998
266
48
418
72
48
16
362
85
1999
225
46
264
59
23
12
271
67
2000
168
44
365
70
25
16
218
77
2001
83
29
251
63
17
8
117
73
2002
154
38
375
71
27
10
208
80
2003
213
49
435
68
27
8
267
77
2004
108
36
324
62
81
17
270
71
2005
292
44
248
48
23
13
338
65
2006
452
57
575
76
44
16
540
90
AVG
110
27
226
51
22
10
358
59


Violent Tornadoes
Date
F
Deaths
Injuries
1984 28-Mar 2300 UTC
F4
5
49
1984 28-Mar 2320 UTC
F4
0
36
1992 22-Nov 2145 UTC
F4
5
86
1995 07-Nov 2205 UTC
F4
0
1

Monthly Averages
Month
Hail
Wind
Torn
Total
Jan
2
5
1
8
Feb
2
8
1
11
Mar
12
15
2
28
Apr
20
16
2
38
May
35
35
3
73
Jun
17
50
2
69
Jul
11
48
2
61
Aug
6
25
1
32
Sep
1
8
4
12
Oct
1
2
0
4
Nov
1
9
2
12
Dec
2
4
1
7

Hourly Averages
UTC
Hail
Wind
Torn
Total
00
259
551
52
862
01
165
401
31
597
02
112
256
15
383
03
71
148
16
235
04
53
127
14
194
05
34
87
17
138
06
7
89
12
108
07
25
77
6
108
08
8
60
8
76
09
8
34
9
51
10
6
58
15
79
11
24
42
11
77
12
24
53
7
84
13
15
68
14
97
14
19
72
12
103
15
11
72
14
97
16
33
83
17
133
17
65
120
27
212
18
149
251
37
437
19
239
413
39
691
20
407
642
41
1090
21
420
805
66
1291
22
447
864
57
1368
23
377
727
45
1149

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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