|
1994
act. |
1995
act. |
1996
act. |
1997
act. |
1998
est. |
1999
est. |
Flash Flood Warnings
Lead time (min)
Accuracy (%)
No lead time (%) |
18
47
64 |
26
60
64 |
39
79
41 |
40
83
27 |
40
83
27 |
42
85
27 |
Severe Thunderstorm Warnings
Lead time (min)
Accuracy (%) |
15
72 |
16
75 |
18
83 |
18
84 |
18
84 |
19
84 |
Tornado Warnings
Lead time (min)
Accuracy (%) |
6
45 |
9
59 |
10
59 |
10
59 |
10
65 |
11
70 |
Hurricane Landfall Warnings
Accuracy of landfall (km)
w/24 hour lead time |
185 |
134 |
130 |
125* |
140 |
135 |
Temperature
Correct forecasts (%)
Correct onset freezing (%) |
82
68 |
84
72 |
85
74 |
86
76 |
86
77 |
87
78 |
Precipitation Forecasts
Lead time (days advance) |
2.3 |
2.3 |
2.3 |
2.3 |
2.3 |
2.3 |
Snow Forecasts
Accuracy heavy snow (%) |
39 |
42 |
45 |
45 |
50 |
55 |