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CPC Verifications

Forecast 199806-199808

 

Verification Type: categorical precipitation
Tool/Product: seasonal Optimal Climate Normal Precip 4.5 mo lead
Region: conus
Averaging Period: 1 season

cat 4 ignored
cat 4 used

contingency table
fcst
obs
0
0
1
1
0
0
0
0
0
0
0
0
0
0
1
1

contingency table
fcst
obs
0
0
1
1
13
20
22
55
0
0
0
0
13
20
23
56

% contingency table
fcst
obs
0
0
100
100
0
0
0
0
0
0
0
0
0
0
100
100

% contingency table
fcst
obs
0
0
2
2
23
36
39
98
0
0
0
0
23
36
41
100

hitrate: 0.000 hitrate: 0.357
bias ratio (>1 overfcst):
-- -- 0.00
bias ratio (>1 overfcst):
0.08 2.75 0.00
Heidke skill score: -0.500 Heidke skill score: 0.036
true Heidke skill score: 0.000 true Heidke skill score: 0.003
Kuipers skill score: -0.500 Kuipers skill score: 0.036
true Kuipers skill score: nan true Kuipers skill score: 0.003
threat score:
0.000 0.000 0.000
threat score:
0.000 0.364 0.000
equitable threat score:
0.000 0.000 0.000
equitable threat score:
-0.017 0.010 0.000
probability of detection:
0.000 0.000 0.000
probability of detection:
0.000 1.000 0.000
false alarm rate (FAR):
1.000 0.000 0.000
false alarm rate (FAR):
1.000 0.636 0.000
samples: 1 out of 56 samples: 56 out of 56
%coverage: 1.79 %coverage: 100.00