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WxSim & NWS Forecast Temperature Comparisons


National Weather Service (NW), Actual Observed (Act), WxSim Generated (WS)

Early Morning Forecasts

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Updated: 12-31-69 at 6:00 pm
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° F Low High Low High Low High Low High
Date NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS
01-18-12
9:30 am
29 17.3 11.7 19.3 31 24 -2.7 26.7 -5.7 21 25 13.3 11.7 11.3 23 9 -17.7 26.7 -17.7 9 30 18.3 11.7 10.3 22 20 -6.7 26.7 -9.7 17 32       29 25       21
Results NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS
# Succ 0     0 0     0 0     0 0     0 0     0 0     0        
% Succ         0.0         0.0         0.0         0.0         0.0         0.0                    
Ave Error   17.3   19.3     2.7   5.7     13.3   11.3     17.7   17.7     18.3   10.3     6.7   9.7                      
Net Error   17.3   19.3     -2.7   -5.7     13.3   11.3     -17.7   -17.7     18.3   10.3     -6.7   -9.7                      
Std Dev   17.3   19.3     2.7   5.7     13.3   11.3     17.7   17.7     18.3   10.3     6.7   9.7                      

Morning Forecasts

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Updated: 12-31-69 at 6:00 pm
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° F Low High Low High Low High Low High
Date NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS
Results NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS
# Succ                                
% Succ                                                                                
Ave Error                                                                                
Net Error                                                                                
Std Dev                                                                                

Afternoon Forecasts

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Updated: 12-31-69 at 6:00 pm
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° F Low High Low High Low High Low High
Date NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS
Results NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS
# Succ                                
% Succ                                                                                
Ave Error                                                                                
Net Error                                                                                
Std Dev                                                                                

Evening Forecasts

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Updated: 12-31-69 at 6:00 pm
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° F Low High Low High Low High Low High
Date NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS
Results NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS NW Diff Act Diff WS
# Succ                                
% Succ                                                                                
Ave Error                                                                                
Net Error                                                                                
Std Dev                                                                                

Forecast comparison script provided by Jim McMurry at jcweather.us
 
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