Radar:       Or click here for map
Radar: Pittsburgh PA
40.52 N - 80.22W
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
3650
89 27
Wind
10434
154 45
Tornadoes
446
104 8
Total
14530
347 51
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
44
1:90
Sig Severe
N/A
1:3,759
Tornadoes
N/A
1:2,924
F2+ Torn
57
1:12,541
* 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: 130%
10 year report increase: -4%
5 year report increase: 52%

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:
6.0 on 08 Jul

Primary Season:
Apr 05 - Sep 02

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 22 UTC

See hourly table below

Climatological Threat Potential
Threat
Avg Prob of Occurrence
Return Interval
Natl Rank
Any Tornado
0.025%
4033 yrs
44
F2+ Tornado
0.022%
4620 yrs
42
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
70
22
180
41
25
16
120
48
1981
26
11
56
22
30
14
86
28
1982
26
13
111
23
6
5
38
29
1983
78
15
253
40
12
6
102
41
1984
34
8
70
17
2
2
38
20
1985
120
18
114
26
37
8
194
33
1986
54
21
264
40
14
12
82
49
1987
37
12
207
38
11
5
59
40
1988
52
14
175
31
1
1
54
34
1989
37
13
187
42
9
8
55
44
1990
82
22
356
46
31
15
144
48
1991
85
27
481
47
15
5
115
51
1992
85
27
310
49
37
13
159
56
1993
100
27
403
42
10
7
120
49
1994
149
43
498
67
17
14
183
73
1995
123
29
598
59
7
4
137
62
1996
200
41
578
65
16
6
232
70
1997
83
24
412
35
14
9
111
41
1998
315
37
793
51
53
19
421
59
1999
130
33
528
50
10
5
150
56
2000
202
36
517
59
15
7
232
62
2001
184
25
305
48
11
8
206
54
2002
385
47
658
62
23
8
431
71
2003
212
42
757
58
12
7
236
67
2004
281
48
593
58
16
9
313
68
2005
169
34
609
54
2
2
173
61
2006
331
51
421
56
10
6
351
74
AVG
135
27
386
45
17
8
538
51


Violent Tornadoes
Date
F
Deaths
Injuries
1980 03-Jun 1630 UTC
F4
0
140
1985 31-May 2059 UTC
F4
12
82
1985 31-May 2117 UTC
F4
16
125
1985 31-May 2125 UTC
F4
0
0
1985 31-May 2230 UTC
F5
18
310
1985 31-May 2230 UTC
F4
7
30
1985 31-May 2335 UTC
F4
0
0
1985 31-May 2359 UTC
F4
4
40
1998 03-Jun 0102 UTC
F4
0
5

Monthly Averages
Month
Hail
Wind
Torn
Total
Jan
1
2
0
2
Feb
0
1
0
2
Mar
2
7
0
9
Apr
25
24
1
50
May
29
49
2
80
Jun
34
89
4
127
Jul
23
110
4
137
Aug
14
62
1
77
Sep
5
20
1
26
Oct
1
7
0
9
Nov
1
12
1
14
Dec
0
2
0
2

Hourly Averages
UTC
Hail
Wind
Torn
Total
00
314
1065
58
1437
01
212
870
48
1130
02
123
547
22
692
03
70
400
9
479
04
43
231
12
286
05
36
200
9
245
06
41
132
1
174
07
33
98
0
131
08
22
89
1
112
09
25
82
1
108
10
15
88
1
104
11
14
95
2
111
12
23
62
1
86
13
18
67
2
87
14
13
75
3
91
15
36
88
4
128
16
37
131
6
174
17
88
276
10
374
18
207
495
23
725
19
373
712
25
1110
20
455
1004
44
1503
21
512
1201
48
1761
22
494
1237
58
1789
23
446
1189
58
1693

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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