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Extreme Weather

Nebraska Hourly Tornado Frequency 1950 to 2015

 

 

2014
2015
1950 to 2015
1950 to 2015
 

TIME

Number of 
tornadoes
Number of 
tornadoes
Number of 
tornadoes
Percent of
all tornadoes
TIME
12 AM
0
0
18
0.7%
12 AM
1 AM
0
0
27
1.0%
1 AM
2 AM
0
0
8
0.3%
2 AM
3 AM
0
0
7
0.3%
3 AM
4 AM
0
0
8
0.3%
4 AM
5 AM
0
0
8
0.3%
5 AM
6 AM
0
0
6
0.2%
6 AM
7 AM
0
0
6
0.2%
7 AM
8 AM
0
0
1
0.0%
8 AM
9 AM
0
0
5
0.2%
9 AM
10 AM
0
0
17
0.6%
10 AM
11 AM
0
1
33
1.2%
11 AM
12 PM
1
0
53
1.9%
12 PM
1 PM
4
0
92
3.3%
1 PM
2 PM
5
2
166
5.9%
2 PM
3 PM
12
4
265
9.3%
3 PM
4 PM
10
6
394
14.1%
4 PM
5 PM
10
3
439
15.9%
5 PM
6 PM
9
0
375
13.6%
6 PM
7 PM
4
7
342
12.3%
7 PM
8 PM
5
1
233
8.5%
8 PM
9 PM
3
1
143
5.2%
9 PM
10 PM
0
1
84
3.1%
10 PM
11 PM
0
0
46
1.7%
11 PM
TOTAL
63
26
2776
100.0%
TOTAL

 

Nebraska's tornadoes are concentrated in the late afternoon into early evening time period.

73.8% of all observed Nebraska tornadoes have occurred between 3:00 pm and 8:59 pm

55.9% of all observed Nebraska tornadoes have occurred between 4:00 pm and 7:59 pm

The lowest hourly total is only 1 tornado observed in the 7 am hourly time slot

The greatest hourly total is 439 tornadoes observed in the 5 pm hourly time slot

If all the observed tornadoes were equally distributed thorough out the 24-hours the hourly frequencies would all be 4%