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WxSim & Wunderground Temperature Forecast Comparison

Weather Underground (WU), Actual Observed (Act), WxSim Generated (WS)

Morning Forecasts

Updated: 22-02-12 at 09:00
Goal Forecast Day Day +1 Day +2 Day +3 Day +4
± 2.0° C High Low High Low High Low High Low High Low
Date WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
22-02-12 10   10 3   6 10   13 4   5 8   5 4   4 9   10 4   8 8   10 5   9
21-02-12   11   8   10   7   11   9   10   7   9   7
20-02-12   10   5   9   6   9   6   11   8   8   4
19-02-12   4   2   11   6   11   10   12   8   12   8
18-02-12   3   -2   3   3   9   6   11   7   12   6
17-02-12   9   3   3   -2   5   5   9   7   11   6
16-02-12   10   6   8   4   5   -2   3   3   10   7
15-02-12   10   7   10   7   8   4   5   -3   2   1
14-02-12 9 9.3 10 5 7.7 7 9 8.8 10 5 8.3 7 9 9.3 11 3 4.1 7 8 8.2 8 0 1.2 5 5 5.3 6 0 0.6 -2
13-02-12 9 9.1 8 4 6.7 4 9 9.3 8 5 7.7 5 9 8.8 10 5 8.3 5 9 9.3 11 3 4.1 6 8 8.2 8 2 1.2 3
12-02-12 7 7.4 8 5 6.6 6 9 9.1 8 4 6.7 5 9 9.3 8 6 7.7 5 8 8.8 8 4 8.3 6 9 9.3 10 3 4.1 7
11-02-12 8 8.8 9 2 1.3 2 7 7.4 8 4 6.6 5 8 9.1 7 3 6.7 4 8 9.3 8 3 7.7 6 8 8.8 10 3 8.3 5
10-02-12 8 8.3 10 3 6.2 6 8 8.8 9 3 1.3 2 8 7.4 9 6 6.6 5 8 9.1 8 3 6.7 4 8 9.3 8 2 7.7 4
09-02-12 9 7.9 10 3 7.2 3 9 8.3 9 4 6.2 5 8 8.8 8 5 1.3 3 9 7.4 8 2 6.6 6 8 9.1 8 3 6.7 2
Results WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
# Succ 6 5 2 4 6 6 1 5 6 5 3 2 6 6 2 3 6 6 3 1
% Succ 100.0   83.3 33.3   66.7 100.0   100.0 16.7   83.3 100.0   83.3 50.0   33.3 100.0   100.0 33.3   50.0 100.0   100.0 50.0   16.7
Ave Error 0.5   1.1 2.5   1.5 0.4   0.9 2.5   1.5 0.6   1.5 2.4   2.5 0.9   1.0 3.3   2.2 0.7   0.9 2.9   3.2
Net Error -0.1   0.7 -2.3   -1.3 -0.1   0.1 -2.0   -1.3 -0.3   0.1 -1.1   -1.0 -0.4   -0.2 -3.3   -0.3 -0.7   -0.0 -2.6   -1.6
Std Dev 0.5   1.1 2.5   1.5 0.4   0.9 2.5   1.5 0.6   1.5 2.4   2.5 0.9   1.0 3.3   2.2 0.7   0.9 2.9   3.2


Afternoon Forecasts

Updated: 22-02-12 at 15:00
Goal Forecast Day Day +1 Day +2 Day +3 Day +4
± 2.0° C High Low High Low High Low High Low High Low
Date WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
22-02-12 10   9 3   7 10   13 4   5 8   6 4   4 9   11 4   7 8   10 5   7
21-02-12   10   7   10   6   12   5   6   5   10   8
20-02-12   9   4   12   9   11   6   12   8   8   3
19-02-12   4   3   8   4   11   6   10   7   12   9
18-02-12   4   -2   3   3   10   3   10   10   13   6
17-02-12   8   3   3   -2   5   4   8   6   11   9
16-02-12   8   5   7   3   4   -2   5   4   9   7
15-02-12   9   7   10   6   8   6   7   -1   3   2
14-02-12 9 9.3 9 5 7.7 6 9 8.8 9 5 8.3 7 9 9.3 10 3 4.1 5 8 8.2 8 1 1.2 5 5 5.3 6 0 0.6 1
13-02-12 9 9.1 9 4 6.7 4 9 9.3 8 5 7.7 5 9 8.8 10 5 8.3 6 9 9.3 11 3 4.1 6 8 8.2 8 2 1.2 4
12-02-12 8 7.4 8 5 6.6 6 9 9.1 9 4 6.7 4 9 9.3 8 4 7.7 4 8 8.8 8 4 8.3 6 9 9.3 10 3 4.1 7
11-02-12 9 8.8 8 2 1.3 0 7 7.4 8 3 6.6 5 8 9.1 7 3 6.7 3 8 9.3 7 3 7.7 5 8 8.8 10 3 8.3 4
10-02-12 9 8.3 8 2 6.2 4 8 8.8 9 2 1.3 3 7 7.4 9 3 6.6 6 7 9.1 8 3 6.7 3 8 9.3 9 2 7.7 4
09-02-12 9 7.9 8 2 7.2 3 9 8.3 8 2 6.2 5 8 8.8 9 4 1.3 3 9 7.4 8 2 6.6 4 8 9.1 7 3 6.7 3
Results WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
# Succ 6 6 2 3 6 6 1 4 6 5 1 3 5 5 2 1 6 5 3 1
% Succ 100.0   100.0 33.3   50.0 100.0   100.0 16.7   66.7 100.0   83.3 16.7   50.0 83.3   83.3 33.3   16.7 100.0   83.3 50.0   16.7
Ave Error 0.5   0.4 2.9   2.1 0.4   0.5 2.9   1.9 0.5   1.2 3.0   2.2 1.1   1.1 3.1   2.8 0.7   0.9 2.9   3.0
Net Error 0.4   -0.1 -2.6   -2.1 -0.1   -0.1 -2.6   -1.3 -0.5   0.1 -2.1   -1.3 -0.5   -0.4 -3.1   -0.9 -0.7   -0.0 -2.6   -0.9
Std Dev 0.5   0.4 2.9   2.1 0.4   0.5 2.9   1.9 0.5   1.2 3.0   2.2 1.1   1.1 3.1   2.8 0.7   0.9 2.9   3.0


Evening Forecasts

Updated: 21-02-12 at 21:00
Goal Forecast Day Day +1 Day +2 Day +3 Day +4
± 2.0° C Low High Low High Low High Low High Low High
Date WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
21-02-12   5   10   6   9   5   5   4   8   7  
20-02-12   6   11   8   10   7   10   5   6   3  
19-02-12   3   10   6   11   9   11   7   13   6  
18-02-12   -1   5   4   8   5   12   9   12   6  
17-02-12   5   6   -1   5   3   9   8   11   8  
16-02-12   5   8   5   6   -2   4   3   9   8  
15-02-12   7   9   6   8   5   6   -2   6   5  
14-02-12 5 7.7 6 9 8.8 8 3 8.3 6 8 9.3 10 1 4.1 7 5 8.2 9 0 1.2 6 6 5.3 7 0 0.6 0 8 5.3
13-02-12 5 6.7 5 9 9.3 8 5 7.7 5 9 8.8 9 3 8.3 6 8 9.3 11 2 4.1 7 5 8.2 8 1 1.2 4 4 5.3
12-02-12 4 6.6 6 9 9.1 8 3 6.7 4 9 9.3 8 4 7.7 5 9 8.8 9 3 8.3 6 7 9.3 11 3 4.1 6 6 8.2
11-02-12 3 1.3 2 8 7.4 9 3 6.6 6 8 9.1 8 3 6.7 3 8 9.3 8 3 7.7 5 8 8.8 10 2 8.3 5 7 9.3
10-02-12 2 6.2 7 7 8.8 10 3 1.3 2 7 7.4 7 3 6.6 5 8 9.1 9 2 6.7 3 8 9.3 8 3 7.7 4 7 8.8
09-02-12 2 7.2 5 8 8.3 10 4 6.2 5 9 8.8 8 2 1.3 2 8 7.4 9 3 6.6 6 7 9.1 7 1 6.7 3 7 9.3
08-02-12 4 6.5 6 9 7.9 10 3 7.2 4 8 8.3 9 2 6.2 4 8 8.8 9 3 1.3 2 7 7.4 7 2 6.6 5 7 9.1
Results WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
# Succ 2 6 7 6 1 3 7 7 1 2 6 7 2 2 4 6 3 3 2 0
% Succ 28.6   85.7 100.0   85.7 14.3   42.9 100.0   100.0 14.3   28.6 85.7   100.0 28.6   28.6 57.1   85.7 42.9   42.9 28.6   0.0
Ave Error 2.9   1.2 0.6   1.4 3.3   1.9 0.5   0.7 3.5   2.3 1.2   0.8 3.3   2.5 1.5   1.2 3.3   2.5 2.1   7.9
Net Error -2.5   -0.7 -0.1   0.5 -2.9   -1.7 -0.4   -0.3 -3.3   -1.3 -1.0   0.4 -2.8   -0.1 -1.3   0.1 -3.3   -1.2 -1.3   -7.9
Std Dev 2.9   1.2 0.6   1.4 3.3   1.9 0.5   0.7 3.5   2.3 1.2   0.8 3.3   2.5 1.5   1.2 3.3   2.5 2.1   7.9

WxSim is the Software which produces the Weather Forecasts used by Hebrides Weather