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NWS & WxSim Forecast Comparison



NWS
Tonight

Partly Cloudy
Partly
Cloudy		Thursday

Mostly Sunny
Mostly
Sunny		Thursday
Night
Mostly Cloudy
Mostly
Cloudy		Friday

Slight Chance Rain. Chance for Measurable Precipitation 20%
Slight Chc
Rain		Friday
Night
Slight Chance Rain. Chance for Measurable Precipitation 20%
Slight Chc
Rain		Saturday

Slight Chance Rain. Chance for Measurable Precipitation 20%
Slight Chc
Rain		Saturday
Night
Chance Rain. Chance for Measurable Precipitation 30%
Chance
Rain		Sunday

Mostly Sunny
Mostly
Sunny		Sunday
Night
Clear
Clear
Lo 17 °FHi 45 °FLo 27 °FHi 44 °FLo 24 °FHi 46 °FLo 26 °FHi 44 °F Lo 29 °F


WxSim
This
afternoon
Clear
Clear		Tonight

Partly Cloudy
Partly Cloudy		Thursday

Partly Cloudy
Partly Cloudy		Thursday
night
Mostly Cloudy
Mostly Cloudy		Friday

Freezing Rain
Freezing Rain		Friday
night
Mostly Cloudy
Mostly Cloudy		Saturday

Mostly Cloudy
Mostly Cloudy		Saturday
night
Chance rain
Chance rain		Sunday

Rain likely
Rain likely		Sunday
night
Rain likely
Rain likely
High: 35°Low: 10°High: 41°Low: 24°High: 45°Low: 30°High: 48°Low: 35°High: 40°Low: 36°


National Weather Service (NW), Actual Observed (Act), WxSim Generated (WS)
MORNING
Updated: 03-10-10 at 4:55 am
Temps Forecast Day Day +1 Day +2 Day +3
° F High Low 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 NW Act WS NW Act WS
03-10-10 40   30 15   8 44   46 27   18 46   52 27   33 45   55 29   32
03-09-10 33 32.4 20 13 8.6 5 36   29 13   10 42   44 26   32 41   41 31   39
03-08-10 39 40.1 34 16 19.7 21 32 32.4 24 10 8.6 12 36   30 12   9 44   43 24   24
03-07-10 37 43.8 34 27 31 25 35 40.1 33 18 19.7 17 32 32.4 20 13 8.6 8 36   26 11   7
03-06-10 40 40.6 37 20 20 16 38 43.8 32 20 31 22 33 40.1 26 16 19.7 16 33 32.4 20 11 8.6 6
03-05-10 34 34.7 30 9 13.4 3 37 40.6 34 18 20 18 38 43.8 29 17 31 22 37 40.1 28 20 19.7 20
03-04-10 33 35.5 26 17 13.9 18 33 34.7 35 10 13.4 5 39 40.6 33 19 20 21 40 43.8 34 16 31 23
03-03-10 33 34.7 29 17 20.6 19 30 35.5 25 12 13.9 14 33 34.7 31 10 13.4 7 34 40.6 34 12 20 18
03-02-10 38 41 31 14 19.8 21 32 34.7 31 16 20.6 14 29 35.5 24 10 13.9 9 32 34.7 28 8 13.4 6
03-01-10 33 32.2 29 22 25.8 22 34 41 30 17 19.8 19 30 34.7 25 16 20.6 14 30 35.5 24 11 13.9 11
02-28-10 36 33.7 31 24 26.9 22 34 32.2 28 21 25.8 26 35 41 31 18 19.8 23 31 34.7 30 14 20.6 20
02-27-10 35 33.2 32 25 28 26 34 33.7 31 20 26.9 23 34 32.2 29 22 25.8 23 34 41 33 13 19.8 18
02-25-10 34 36.7 36 28 29.9 29 34 33.2 35 24 28 27 36 33.7 31 19 26.9 24 34 32.2 32 18 25.8 21
02-24-10 34 32.9 33 28 30.1 26 36 36.7 33 30 29.9 31 35 33.2 33 20 28 26 36 33.7 29 17 26.9 26
02-23-10 35 30.3 35 26 26.1 28 34 32.9 32 25 30.1 29 35 36.7 38 21 29.9 35 35 33.2 38 18 28 30
02-22-10 36 29.7 29 23 26.5 21 36 30.3 35 20 26.1 28 35 32.9 36 20 30.1 35 32 36.7 40 19 29.9 32
02-21-10 29 23.4 22 20 19.3 16 36 29.7 29 22 26.5 21 35 30.3 36 24 26.1 31 34 32.9 35 21 30.1 28
02-20-10 30 26.8 28 21 20 13 30 23.4 18 17 19.3 16 34 29.7 28 17 26.5 17 37 30.3 39 19 26.1 28
02-19-10 30 22.2 23 20 20.8 17 32 26.8 26 21 20 17 31 23.4 22 19 19.3 17 35 29.7 31 16 26.5 18
02-18-10 32 29.6 28 18 19.4 17 28 22.2 22 18 20.8 16 33 26.8 24 16 20 17 30 23.4 23 13 19.3 18
02-17-10 29 25.5 25 19 22.2 20 31 29.6 29 18 19.4 16 29 22.2 19 17 20.8 16 30 26.8 24 10 20 15
Results NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS
# Wins 10 1 9 12 1 7 11 0 8 10 1 8 12 0 6 7 3 8 11 1 5 2 2 13
% Wins 50.0 5.0 45.0 60.0 5.0 35.0 57.9   42.1 52.6 5.3 42.1 66.7   33.3 38.9 16.7 44.4 64.7 5.9 29.4 11.8 11.8 76.5
Ave Error 3.0   4.0 2.7   3.7 3.6   4.5 3.6   3.3 4.1   6.1 5.3   4.3 3.9   5.9 7.6   3.2
1.1   -3.4 -1.8   -2.9 0.1   -3.8 -3.3   -2.6 0.1   -4.9 -4.8   -2.2 -0.5   -3.5 -7.3   -2.4
Std Dev 2.2   3.7 1.7   2.4 2.5   3.8 2.7   2.7 2.6   5.1 3.9   2.9 2.6   4.4 5.0   2.6

AFTERNOON
Updated: 03-10-10 at 10:55 am
Temps Forecast Day Day +1 Day +2 Day +3
° F High Low 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 NW Act WS NW Act WS
03-10-10 39   35 15   10 44   41 27   24 46   45 27   30 45   48 29   35
03-09-10 33 32.4 28 13 8.3 12 36   32 13   10 42   47 26   26 41   46 31   37
03-08-10 41 40.1 39 16 19.7 16 32 32.4 22 10 8.3 10 36   30 12   8 44   43 24   19
03-07-10 41 43.8 41 27 31 20 35 40.1 26 18 19.7 15 32 32.4 21 13 8.3 14 36   26 11   8
03-05-10 38 40.6 32 12 20 4 37 43.8 35 18 31 17 35 40.1 28 19 19.7 23 35 32.4 29 16 8.3 17
03-04-10 33 35.5 33 17 13.2 14 33 40.6 35 10 20 8 39 43.8 33 19 31 18 40 40.1 31 16 19.7 22
03-03-10 33 34.7 35 21 20.2 20 29 35.5 26 11 13.2 12 34 40.6 31 12 20 6 34 43.8 32 14 31 18
03-02-10 38 41 39 14 19.6 23 32 34.7 31 16 20.2 15 29 35.5 24 10 13.2 10 32 40.6 27 8 20 8
03-01-10 33 32.2 34 22 25.1 21 34 41 28 17 19.6 20 30 34.7 26 16 20.2 14 30 35.5 22 11 13.2 8
02-28-10 36 33.7 32 24 26.7 22 34 32.2 27 21 25.1 24 35 41 30 18 19.6 23 31 34.7 27 14 20.2 18
02-27-10 35 33.2 33 25 28 25 34 33.7 33 20 26.7 21 34 32.2 28 22 25.1 27 34 41 33 13 19.6 24
02-26-10 34 36.7 38 24 29.8 27 33 33.2 30 21 28 25 34 33.7 28 21 26.7 22 33 32.2 31 13 25.1 24
02-25-10 34 35.9 35 28 31.7 28 34 36.7 35 24 29.8 26 36 33.2 31 19 28 25 34 33.7 30 18 26.7 23
02-24-10 34 32.9 34 28 29.5 27 36 35.9 36 30 31.7 31 35 36.7 35 20 29.8 28 36 33.2 32 17 28 28
02-23-10 37 30.3 34 26 26.1 27 34 32.9 32 25 29.5 28 35 35.9 40 21 31.7 40 35 36.7 43 18 29.8 30
02-22-10 36 29.7 30 23 26.5 22 36 30.3 34 20 26.1 26 35 32.9 35 20 29.5 34 32 35.9 39 19 31.7 32
02-21-10 29 23.4 22 20 19.3 16 36 29.7 30 22 26.5 20 35 30.3 36 24 26.1 29 34 32.9 34 21 29.5 30
02-20-10 30 26.8 28 21 17.8 15 30 23.4 22 17 19.3 17 34 29.7 27 17 26.5 19 37 30.3 38 19 26.1 31
02-19-10 30 22.2 25 20 20.8 18 32 26.8 26 21 17.8 17 31 23.4 22 19 19.3 16 35 29.7 28 16 26.5 16
02-18-10 33 29.6 31 18 19 16 28 22.2 19 18 20.8 15 33 26.8 25 16 17.8 18 30 23.4 24 13 19.3 14
02-17-10 28 25.5 26 19 22.2 21 31 29.6 29 18 19 19 29 22.2 22 17 20.8 16 30 26.8 24 10 17.8 15
Results NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS
# Wins 4 3 13 10 3 7 9 1 9 6 2 11 11 2 5 9 1 8 11 1 5 2 2 13
% Wins 20.0 15.0 65.0 50.0 15.0 35.0 47.4 5.3 47.4 31.6 10.5 57.9 61.1 11.1 27.8 50.0 5.6 44.4 64.7 5.9 29.4 11.8 11.8 76.5
Ave Error 3.0   2.0 3.1   3.9 3.9   4.6 4.5   3.7 4.1   5.9 5.5   5.1 4.1   5.7 8.9   4.5
1.3   -0.6 -1.8   -3.0 -0.2   -4.1 -4.0   -3.5 -0.0   -4.6 -5.0   -1.7 -0.6   -3.5 -8.0   -2.0
Std Dev 2.1   1.9 2.1   3.6 2.9   4.5 3.2   3.9 2.6   4.3 4.0   3.9 3.3   4.8 5.5   4.4

NIGHT
Updated: 03-09-10 at 5:55 pm
Temps Forecast Day Day +1 Day +2 Day +3
° F Low High 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 NW Act WS NW Act WS
03-09-10 14   12 39   31 11   7 42   45 28   20 43   48 27   33 44   53
03-08-10 20 19.7 16 34 40.1 24 9   8 34   30 8   7 45   44 20   22 39   37
03-07-10 23 31 23 36 43.8 29 19 19.7 18 32 40.1 21 13   13 36   30 11   12 42   45
03-06-10 20 20 19 38 40.6 31 20 31 23 33 43.8 28 16 19.7 17 33 40.1 20 11   7 37   26
03-05-10 10 13.5 5 36 34.7 35 18 20 15 34 40.6 31 20 31 24 34 43.8 29 15 19.7 17 34 40.1 22
03-04-10 17 13.2 14 34 35.5 32 9 13.5 6 37 34.7 34 18 20 22 38 40.6 32 17 31 24 37 43.8 31
03-03-10 19 20.2 19 31 34.7 29 6 13.2 13 34 35.5 31 12 13.5 5 38 34.7 34 15 20 20 37 40.6 36
03-02-10 20 19.6 21 33 41 31 17 20.2 19 30 34.7 26 12 13.2 15 33 35.5 30 10 13.5 12 34 34.7 28
03-01-10 24 25.1 24 36 32.2 32 18 19.6 14 31 41 29 14 20.2 12 31 34.7 24 9 13.2 8 32 35.5 27
02-28-10 25 26.7 22 32 33.7 28 25 25.1 24 35 32.2 30 19 19.6 23 32 41 28 15 20.2 17 31 34.7 23
02-27-10 23 28 25 36 33.2 32 26 26.7 22 34 33.7 29 25 25.1 24 34 32.2 31 17 19.6 21 31 41 31
02-26-10 28 29.8 26 34 36.7 32 27 28 24 34 33.2 33 22 26.7 22 34 33.7 28 16 25.1 20 34 32.2 31
02-25-10 29 31.7 27 34 35.9 34 23 29.8 24 33 36.7 31 22 28 27 35 33.2 32 19 26.7 24 33 33.7 28
02-24-10 26 29.5 26 34 32.9 33 28 31.7 28 35 35.9 38 23 29.8 31 36 36.7 34 21 28 22 33 33.2 32
02-23-10 26 26.1 24 34 30.3 30 28 29.5 27 36 32.9 35 30 31.7 33 38 35.9 37 24 29.8 32 36 36.7 34
02-22-10 20 26.5 21 35 29.7 35 24 26.1 27 34 30.3 37 25 29.5 37 35 32.9 44 21 31.7 29 35 35.9 30
02-21-10 19 19.3 15 34 23.4 29 21 26.5 21 34 29.7 36 22 26.1 32 35 30.3 37 22 29.5 31 32 32.9 34
02-20-10 22 17.8 17 30 26.8 21 19 19.3 16 34 23.4 28 17 26.5 21 35 29.7 36 21 26.1 30 33 30.3 35
02-19-10 18 20.8 17 32 22.2 27 19 17.8 20 29 26.8 24 16 19.3 17 34 23.4 26 15 26.5 15 35 29.7 37
02-18-10 21 19 18 34 29.6 23 17 20.8 17 30 22.2 25 16 17.8 21 31 26.8 24 14 19.3 16 33 23.4 28
02-17-10 19 22.2 20 31 25.5 29 19 19 23 28 29.6 24 17 20.8 16 32 22.2 24 14 17.8 16 29 26.8 22
Results NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS NW Tie WS
# Wins 10 4 6 10 2 8 11 3 5 13 0 6 9 2 7 11 0 7 1 1 15 14 1 2
% Wins 50.0 20.0 30.0 50.0 10.0 40.0 57.9 15.8 26.3 68.4   31.6 50.0 11.1 38.9 61.1   38.9 5.9 5.9 88.2 82.4 5.9 11.8
Ave Error 2.6   3.3 4.4   5.3 3.0   3.7 4.5   6.1 4.0   4.0 4.5   6.5 6.6   3.6 3.5   6.6
-1.5   -3.0 0.8   -3.3 -2.9   -3.0 -0.5   -3.5 -4.0   -1.1 0.6   -3.2 -6.6   -2.6 -1.0   -4.5
Std Dev 2.2   2.3 2.9   4.5 2.9   2.5 3.5   5.2 3.3   3.0 3.2   5.8 4.2   2.5 3.1   5.4
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