WxSim & EC Forecast Comparison

Environment Canada (EC), Actual Observed (Act), WxSim Generated (WS)
Morning Forecasts
Updated: 09-20-21 at 8:00 am
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° F High Low High Low High Low High Low
Date EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS
09-20-21 17   18 7   1 23   21 10   5 22   22 4   4 13   18 3   5
09-19-21 16 19.1 19 4 1.8 1 17   18 6   2 23   22 12   5 23   21 7   4
09-18-21 22 22.3 22 6 4.9 6 16 19.1 18 4 1.8 2 17   17 5   3 22   22 9   7
09-17-21 18 22.0 18 14 12.1 5 20 22.3 20 6 4.9 5 16 19.1 17 6 1.8 2 16   18 4   2
09-16-21 14 15.4 15 3 1.6 4 18 22.0 19 12 12.1 8 20 22.3 21 10 4.9 6 14 19.1 17 5 1.8 7
09-15-21 15 14.3 10 3 2.8 2 13 15.4 15 1 1.6 5 17 22.0 18 8 12.1 8 17 22.3 20 6 4.9 6
09-14-21 20 21.6 21 7 5.9 7 13 14.3 13 3 2.8 4 13 15.4 15 1 1.6 2 15 22.0 15 6 12.1 5
09-13-21 17 19.3 19 6 4.1 6 20 21.6 21 6 5.9 8 13 14.3 12 3 2.8 4 13 15.4 15 4 1.6 6
09-12-21 17 17.6 18 8 6.8 10 17 19.3 19 6 4.1 6 20 21.6 21 6 5.9 7 9 14.3 14 3 2.8 7
09-11-21 17 16.3 16 10 9.9 10 18 17.6 16 6 6.8 10 17 19.3 19 6 4.1 6 21 21.6 21 7 5.9 9
09-10-21 22 22.0 21 11 10.3 12 15 16.3 18 10 9.9 11 17 17.6 16 6 6.8 8 17 19.3 18 6 4.1 6
09-09-21 26 28.3 26 11 8.2 9 19 22.0 20 11 10.3 12 14 16.3 18 10 9.9 12 16 17.6 17 6 6.8 10
09-08-21 27 24.2 27 12 9.2 10 27 28.3 26 9 8.2 11 20 22.0 21 12 10.3 11 15 16.3 14 8 9.9 10
09-07-21 22 26.1 23 9 9.5 7 24 24.2 26 13 9.2 8 28 28.3 27 11 8.2 12 22 22.0 18 9 10.3 8
Results EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS
# Succ 7 8 10 9 6 9 10 7 5 8 7 8 4 5 7 3
% Succ 53.8   61.5 76.9   69.2 50.0   75.0 83.3   58.3 45.5   72.7 63.6   72.7 40.0   50.0 70.0   30.0
Ave Error 1.8   1.5 1.4   1.9 1.9   1.5 1.0   1.9 2.1   1.5 2.0   1.6 3.1   2.1 2.0   3.3
Net Error -1.2   -1.0 1.3   0.1 -1.9   -1.0 0.8   1.0 -2.1   -1.2 1.0   0.9 -3.1   -2.1 0.0   1.4
Std Dev 1.2   1.4 0.8   1.7 0.9   0.8 0.7   1.2 1.1   1.0 1.6   1.0 1.9   1.8 1.5   1.6

Mid Day Forecasts
Updated: 09-20-21 at 12:00 pm
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° F High Low High Low High Low High Low
Date EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS
09-20-21 17   19 7   1 23   22 12   5 20   21 4   4 17   17 6   1
09-18-21 22 19.1 22 6 1.8 6 16   18 6   2 16   17 5   3 23   21 9   5
09-17-21 17 22.0 18 14 12.1 7 20 19.1 21 6 1.8 6 16   17 6   3 16   16 5   3
09-16-21 14 15.4 17 3 1.6 4 18 22.0 19 12 12.1 7 20 19.1 22 7 1.8 5 15   18 6   6
09-15-21 14 14.3 9 3 2.8 2 13 15.4 15 2 1.6 3 18 22.0 19 9 12.1 8 19 19.1 22 6 1.8 7
09-14-21 20 21.6 22 7 5.7 9 13 14.3 13 3 2.8 3 13 15.4 15 0 1.6 2 15 22.0 16 7 12.1 4
09-13-21 17 19.3 20 6 4.1 6 20 21.6 22 8 5.7 8 12 14.3 13 1 2.8 3 13 15.4 15 2 1.6 4
09-12-21 17 17.6 18 8 6.8 10 17 19.3 19 7 4.1 7 22 21.6 21 7 5.7 8 12 14.3 13 3 2.8 6
09-11-21 17 16.3 16 10 9.9 9 18 17.6 16 8 6.8 8 18 19.3 19 7 4.1 6 21 21.6 21 7 5.7 7
09-10-21 22 22.0 22 11 10.3 12 15 16.3 18 9 9.9 13 15 17.6 18 7 6.8 10 18 19.3 19 7 4.1 7
09-09-21 26 28.3 27 11 8.2 11 19 22.0 20 11 10.3 12 20 16.3 19 9 9.9 11 15 17.6 18 7 6.8 10
09-08-21 27 24.2 23 12 9.2 10 27 28.3 26 11 8.2 12 19 22.0 21 7 10.3 13 21 16.3 19 8 9.9 9
09-07-21 22 26.1 25 9 9.5 8 24 24.2 27 12 9.2 9 26 28.3 27 9 8.2 12 21 22.0 19 8 10.3 12
09-06-21 23 23.9 23 8 7.4 7 21 26.1 24 10 9.5 8 26 24.2 26 11 9.2 8 26 28.3 27 10 8.2 11
Results EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS
# Succ 7 10 10 7 7 8 7 6 4 8 7 5 4 6 6 3
% Succ 53.8   76.9 76.9   53.8 58.3   66.7 58.3   50.0 36.4   72.7 63.6   45.5 40.0   60.0 60.0   30.0
Ave Error 1.9   1.5 1.5   2.2 2.0   1.7 1.6   2.3 2.2   1.4 2.1   2.2 2.4   1.9 2.0   3.2
Net Error -0.9   -0.6 1.4   0.9 -1.8   -0.5 1.4   1.2 -1.0   0.0 0.1   1.2 -1.5   -0.7 0.2   1.4
Std Dev 1.4   1.5 1.1   1.3 0.9   0.8 1.2   1.3 1.0   1.0 1.3   1.1 1.8   1.6 1.5   1.8

Evening Forecasts
Updated: 09-19-21 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 EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS
09-19-21 4   1 16   18 7   1 23   22 10   5 22   21 7   4 14   19
09-18-21 7 4.9 6 16 22.3 18 5   3 17   17 6   2 23   21 12   5 21   20
09-17-21 12 12.1 9 21 22.0 22 6 4.9 6 16 22.3 17 6   4 16   17 4   3 21   20
09-16-21 0 1.6 3 19 15.4 19 12 12.1 8 20 22.0 22 5 4.9 7 15 22.3 17 6   5 14   17
09-15-21 3 2.8 3 14 14.3 16 2 1.6 3 17 15.4 19 9 12.1 8 20 22.0 21 8 4.9 6 12 22.3 15
09-14-21 7 5.7 8 14 21.6 11 3 2.8 4 13 14.3 15 2 1.6 4 16 15.4 17 8 12.1 5 19 22.0 18
09-13-21 6 4.1 6 17 19.3 21 7 5.7 8 13 21.6 14 3 2.8 3 13 14.3 14 2 1.6 4 13 15.4 16
09-12-21 7 6.8 11 18 17.6 20 7 4.1 7 20 19.3 21 8 5.7 7 8 21.6 12 2 2.8 7 12 14.3 13
09-11-21 10 9.9 11 16 16.3 18 7 6.8 10 17 17.6 20 7 4.1 7 21 19.3 21 6 5.7 9 12 21.6 15
09-10-21 11 10.3 12 13 22.0 19 9 9.9 10 19 16.3 16 6 6.8 9 17 17.6 19 6 4.1 6 20 19.3 20
09-09-21 11 8.2 12 21 28.3 22 11 10.3 12 16 22.0 19 10 9.9 11 16 16.3 17 7 6.8 9 17 17.6 18
09-08-21 12 9.2 12 26 24.2 26 11 8.2 10 19 28.3 19 11 10.3 14 16 22.0 22 8 9.9 12 18 16.3 15
09-07-21 9 9.5 9 25 26.1 27 12 9.2 9 27 24.2 27 12 8.2 12 21 28.3 19 10 10.3 12 19 22.0 17
09-06-21 8 23.9 7 22 7.4 25 10 9.5 9 25 26.1 27 12 9.2 9 27 24.2 26 13 8.2 12 17 28.3 16
Results EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS
# Succ 9 7 6 6 9 8 6 5 6 4 6 8 7 3 3 5
% Succ 69.2   53.8 46.2   46.2 75.0   66.7 50.0   41.7 54.5   36.4 54.5   72.7 70.0   30.0 30.0   50.0
Ave Error 2.3   3.2 4.3   4.3 1.2   1.7 3.6   3.1 1.6   2.2 4.0   3.0 1.8   3.0 4.5   4.0
Net Error -0.5   0.0 -1.1   0.6 1.0   0.9 -2.3   -1.1 0.9   1.4 -3.0   -1.7 0.4   1.6 -4.0   -3.6
Std Dev 1.4   1.6 3.1   2.8 0.9   1.0 2.9   2.7 1.1   1.0 3.8   2.5 1.1   1.5 2.9   2.2

Overnight Forecasts
Updated: 09-19-21 at 10:00 pm
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° F Low High Low High Low High Low High
Date EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS
09-19-21 4   2 16   18 7   1 23   22 10   5 22   21 7   4 14   19
09-18-21 7 9.7 5 16 22.3 18 5   3 17   17 6   2 23   21 12   5 21   20
09-17-21 12 11.6 8 21 22.0 21 6 9.7 6 16 22.3 17 6   4 16   17 4   3 21   20
09-16-21 0 12.1 3 19 15.4 18 12 11.6 8 20 22.0 22 5 9.7 7 15 22.3 17 6   5 14   17
09-15-21 0 7.3 3 14 14.3 16 2 12.1 3 17 15.4 19 9 11.6 8 20 22.0 21 8 9.7 6 12 22.3 15
09-14-21 7 5.8 8 14 21.6 11 3 7.3 4 13 14.3 15 2 12.1 4 16 15.4 17 8 11.6 5 19 22.0 18
09-13-21 6 14.0 5 17 19.3 21 7 5.8 8 13 21.6 14 3 7.3 3 13 14.3 14 2 12.1 4 13 15.4 16
09-12-21 7 11.2 11 18 17.6 20 7 14.0 7 20 19.3 21 8 5.8 7 8 21.6 12 2 7.3 7 12 14.3 13
09-11-21 10 11.1 12 16 16.3 18 7 11.2 10 17 17.6 20 7 14.0 7 21 19.3 21 6 5.8 9 12 21.6 15
09-10-21 11 11.6 12 13 22.0 16 9 11.1 9 19 16.3 16 6 11.2 8 17 17.6 18 6 14.0 6 20 19.3 21
09-09-21 11 15.4 12 21 28.3 21 11 11.6 12 16 22.0 18 10 11.1 11 16 16.3 17 7 11.2 9 17 17.6 18
09-08-21 12 15.3 10 26 24.2 27 11 15.4 10 19 28.3 17 11 11.6 14 16 22.0 21 8 11.1 11 18 16.3 15
09-07-21 9 13.9 9 25 26.1 27 12 15.3 9 27 24.2 28 12 15.4 7 21 28.3 21 10 11.6 10 19 22.0 13
09-06-21 8 15.9 7 22 23.9 24 10 13.9 9 25 26.1 27 12 15.3 9 27 24.2 26 13 15.4 12 17 28.3 16
Results EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS EC Act WS
# Succ 4 3 7 6 3 2 6 5 2 2 6 8 3 3 3 5
% Succ 30.8   23.1 53.8   46.2 25.0   16.7 50.0   41.7 18.2   18.2 54.5   72.7 30.0   30.0 30.0   50.0
Ave Error 4.5   4.4 3.3   3.3 3.8   4.1 3.6   3.5 4.0   4.3 4.0   2.8 4.0   3.7 4.5   4.5
Net Error -4.2   -3.8 -2.4   -1.2 -3.5   -3.7 -2.3   -1.3 -3.6   -3.6 -3.0   -1.7 -4.0   -3.1 -4.0   -3.9
Std Dev 3.2   2.7 3.0   2.7 2.6   2.3 2.9   3.1 2.4   2.2 3.8   2.6 2.7   2.4 2.9   2.1