WxSim & NWS Forecast Comparison

National Weather Service (NW), Actual Observed (Act), WxSim Generated (WS)
Updated: 02-05-12 at 9:00 am
Goal Forecast Day Day +1 Day +2
± 2.0° F High Low High Low High Low
Date NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
02-05-12
9:00 am
45   40 24   26 53   48 27   26 46   42 24   17
02-05-12
6:00 am
45 47.6 45 24 21.2 26 53   51 27   25 46   42 24   18
02-05-12
3:00 am
20 47.6 13 44 28.7 42 23 47.6 25 52 21.2 52 27   24 49   41
02-04-12
9:00 am
48 28.7 38 21 47.6 19 44 47.6 43 21 28.7 22 52 47.6 48 30 21.2 30
02-04-12
6:00 am
48 53.3 42 21 28.7 17 44 28.7 45 21 47.6 22 52 47.6 54 30 28.7 32
02-04-12
3:00 am
49 53.3 21 21 28.7 39 45 53.3 15 24 28.7 44 54 28.7 21 28 47.6 54
02-03-12
9:00 am
53 30.2 48 25 53.3 24 48 53.3 43 22 28.7 18 45 53.3 45 24 28.7 24
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ 0 0 0 0 0 0 0 0 0 1 1 0
% Succ     0.0     0.0     0.0     0.0     25.0 25.0   0.0
Ave Error 13.7   18.0 14.7   16.3 11.4   18.4 15.3   17.8 10.6   5.7 8.6   5.8
Net Error 0.4   -9.0 -8.7   -6.9 -5.3   -11.9 -3.0   0.6 6.5   -2.3 -3.6   3.5
Std Dev 10.7   13.9 10.0   10.1 10.1   13.4 13.4   14.1 9.7   5.6 7.4   5.2



Updated: 02-05-12 at 9:00 pm
Goal Forecast Day Day +1 Day +2
± 2.0° F Low High Low High Low High
Date NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
02-05-12
9:00 pm
23   16 52   52 27   26 45   39 20   13 50   51
02-05-12
6:00 pm
23 21.2 17 52 45.3 52 27   26 45   40 20   14 50   50
02-05-12
3:00 pm
23 21.2 46 52 45.3 25 27 21.2 50 45 45.3 24 20   41 50   17
02-05-12
12:00 pm
45 47.6 45 24 21.2 20 53 21.2 51 27 45.3 28 46 21.2 46 24 45.3 20
02-04-12
9:00 pm
20 47.6 16 44 21.2 48 23 47.6 22 52 21.2 52 27 21.2 26 49 45.3 48
02-04-12
6:00 pm
20 28.7 14 44 47.6 45 23 47.6 27 52 21.2 52 27 47.6 24 49 21.2 41
02-04-12
3:00 pm
20 28.7 47 44 53.3 18 23 28.7 45 52 47.6 28 27 47.6 51 49 21.2 29
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ 2 0 0 1 0 0 1 0 0 0 0 0
% Succ 33.3   0.0     16.7     0.0 20.0   0.0     0.0     0.0
Ave Error 8.5   16.0 8.7   15.5 18.5   24.2 16.9   24.0 18.0   14.2 20.2   13.9
Net Error -7.3   -1.7 4.4   -4.3 -3.5   5.7 9.5   0.7 -2.7   2.4 9.5   1.3
Std Dev 9.7   12.2 7.6   11.8 14.6   15.7 14.4   15.8 15.9   13.4 17.5   13.3