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 %
0 465 5843 8
5 16 127 13
10 86 514 17
15 24 114 21
20 94 334 28
25 87 347 25
30 60 220 27
35 12 22 55
40 120 350 34
45 1 1 100
50 164 439 37
55 0 1 0
60 189 450 42
65 41 95 43
70 30 50 60
75 357 609 59
80 89 137 65
85 26 29 90
90 279 380 73
95 119 142 84
100 15 19 79

Observed Not Observed
Forecasted 15 (H) 4 (F)
Not Forecasted 465 (M) 5378 (Z)

Skill Stats
Proportion of Perfect FCSTS (PPF)0.92
Probability of Detection (POD)0.03
False Alarm Rate (FAR)000
Frequency Bias Index (FBI)0.04

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: Wed, Mar 26 2025 - 1905 UTC