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Radar: New Orleans (Slidell) LA
30.33 N - 89.82W
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
2779
 84 27
Wind
5643
 132 50
Tornadoes
912
 149 16
Total
9334
 365 63
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
69
1:140
Sig Severe
N/A
1:3,573
Tornadoes
47
1:1,430
F2+ Torn
35
1:8,753
* 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: 241%
10 year report increase: 22%
5 year report increase: -10%
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:
2.5 on 04 Apr

Primary Season:
Mar 01 - Jul 31
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 23 UTC
See hourly table below

Climatological Threat Potential
Threat
Avg Prob of Occurrence
Return Interval
Natl Rank
Any Tornado
0.030%
3324 yrs
33
F2+ Tornado
0.024%
4215 yrs
33
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
30
17
69
35
35
15
100
51
1981
15
6
63
26
16
14
47
35
1982
22
11
65
39
27
18
76
50
1983
31
14
164
47
40
26
111
59
1984
48
16
94
31
14
9
76
40
1985
55
17
112
42
25
13
105
52
1986
52
18
77
29
17
11
86
45
1987
28
13
103
36
41
10
110
43
1988
98
25
105
43
26
17
150
56
1989
83
32
144
48
37
17
157
63
1990
37
21
201
58
27
19
91
68
1991
90
32
180
53
20
15
130
69
1992
50
25
146
38
52
18
154
56
1993
73
19
68
34
15
10
103
45
1994
42
17
156
46
22
15
86
55
1995
141
39
465
69
56
23
253
84
1996
191
38
184
58
32
13
255
75
1997
168
35
292
59
21
10
210
69
1998
170
34
239
53
20
15
210
75
1999
139
42
273
61
37
16
213
76
2000
175
46
513
80
48
25
271
87
2001
103
38
398
68
52
12
207
77
2002
90
32
390
66
45
15
180
76
2003
275
42
312
60
33
15
341
78
2004
92
34
284
55
45
17
182
68
2005
297
35
274
54
67
20
431
68
2006
184
43
272
63
42
17
268
80
AVG
103
27
209
50
34
16
346
63


Violent Tornadoes
Date
F
Deaths
Injuries
1983 06-Dec 0705 UTC
F4
0
25
1987 28-Feb 1505 UTC
F4
6
350
1992 22-Nov 0527 UTC
F4
12
122
1992 22-Nov 0614 UTC
F4
0
20

Monthly Averages
Month
Hail
Wind
Torn
Total
Jan
5
14
2
21
Feb
6
15
2
22
Mar
23
21
4
48
Apr
28
24
5
56
May
18
23
4
44
Jun
6
26
2
34
Jul
8
32
1
41
Aug
4
18
2
24
Sep
2
6
2
10
Oct
0
4
2
6
Nov
3
13
5
22
Dec
2
10
2
14

Hourly Averages
UTC
Hail
Wind
Torn
Total
00
231
456
70
757
01
180
308
41
529
02
138
210
24
372
03
99
168
16
283
04
63
144
25
232
05
50
114
18
182
06
55
106
15
176
07
66
128
20
214
08
41
123
21
185
09
42
143
34
219
10
34
148
23
205
11
36
127
35
198
12
33
130
30
193
13
30
121
36
187
14
42
133
39
214
15
63
141
49
253
16
57
157
40
254
17
63
195
45
303
18
92
231
44
367
19
172
303
53
528
20
251
440
55
746
21
296
560
70
926
22
321
503
55
879
23
324
554
54
932

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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