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CPC Verifications

Forecast 199808-199810

 

Verification Type: categorical precipitation
Tool/Product: seasonal Official Categorical Precip 5.5 mo lead
Region: conus
Averaging Period: 1 season

cat 4 ignored
cat 4 used

contingency table
fcst
obs
0
3
1
4
0
0
0
0
0
0
0
0
0
3
1
4

contingency table
fcst
obs
0
3
1
4
32
39
29
100
0
0
0
0
32
42
30
104

% contingency table
fcst
obs
0
75
25
100
0
0
0
0
0
0
0
0
0
75
25
100

% contingency table
fcst
obs
0
3
1
4
31
38
28
96
0
0
0
0
31
40
29
100

hitrate: 0.000 hitrate: 0.375
bias ratio (>1 overfcst):
-- 0.00 0.00
bias ratio (>1 overfcst):
0.12 2.38 0.00
Heidke skill score: -0.500 Heidke skill score: 0.062
true Heidke skill score: 0.000 true Heidke skill score: -0.042
Kuipers skill score: -0.500 Kuipers skill score: 0.062
true Kuipers skill score: 0.000 true Kuipers skill score: -0.038
threat score:
0.000 0.000 0.000
threat score:
0.000 0.379 0.000
equitable threat score:
0.000 0.000 0.000
equitable threat score:
-0.035 -0.022 0.000
probability of detection:
0.000 0.000 0.000
probability of detection:
0.000 0.929 0.000
false alarm rate (FAR):
1.000 0.000 0.000
false alarm rate (FAR):
1.000 0.610 0.000
samples: 4 out of 104 samples: 104 out of 104
%coverage: 3.85 %coverage: 100.00