Maunakea Weather Center

MKWC Forecaster Fog Statistics
Select Variable: Fog | Temperature | Precipitable Water | Seeing
Select Forecast Night: Night-1 | Night-2 | Night-3 | Night-4 | Night-5
% Chance Num. of Times Observed Num. of Times this % Forecasted Forecaster's %
0 705 11738 6
5 52 262 20
10 174 891 20
15 48 237 20
20 154 698 22
25 193 627 31
30 133 433 31
35 13 34 38
40 220 628 35
45 0 4 0
50 316 712 44
55 8 15 53
60 425 840 51
65 110 192 57
70 52 76 68
75 644 1090 59
80 128 186 69
85 29 42 69
90 770 1010 76
95 348 404 86
100 282 298 95

Observed Not Observed
Forecasted 282 (H) 16 (F)
Not Forecasted 705 (M) 11033 (Z)

Skill Stats
Proportion of Perfect FCSTS (PPF)0.94
Probability of Detection (POD)0.29
False Alarm Rate (FAR)0.001
Frequency Bias Index (FBI)0.30

PPF = (H+Z)/(H+F+M+Z)FAR = F/(F+Z)
FBI = (H+F)/(H+M)POD = H/(H+M)

Fog Stats last updated on: Sun, May 11 2025 - 1904 UTC