Extended Forecasts from Carolina StormWatch

Compare NWS vs WxSIM Forecasts Being Withing 2 Degrees

NWS Forecasts

Overnight

Overnight: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Lo 77 °F
Thursday

Thursday: Scattered Showers And Thunderstorms
Scattered Showers And T-Storms

Hi 92 °F
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Lo 77 °F
Friday

Friday: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Hi 91 °F
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Lo 78 °F
Saturday

Saturday: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Hi 93 °F
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Lo 78 °F
Sunday

Sunday: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms

Hi 95 °F
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Lo 77 °F

WxSim Forecasts

Rest of
tonight
Thunder storm
Thunder storm
Low: 73°
Thursday

Thunder storm
Hot!
Thunder storm
Hot!
High: 95°
Thursday
night
Thunder storm
Thunder storm
Low: 72°
Friday

Thunder storm
Hot!
Thunder storm
Hot!
High: 94°
Friday
night
Thunder storm
Thunder storm
Low: 75°
Saturday

Chance rain
Hot!
Chance rain
Hot!
High: 94°
Saturday
night
Chance rain
Chance rain
Low: 77°
Sunday

Fog a.m.
Hot!
Fog a.m.
Hot!
High: 97°
Sunday
night
Fog late
Fog late
Low: 77°


WxSim & NWS Forecast Comparison

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

4AM Forecasts
Updated: at
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° 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
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ
% Succ                                                
Ave Error                                                
Net Error                                                
Std Dev                                                

6AM Forecasts
Updated: at
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° 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
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ
% Succ                                                
Ave Error                                                
Net Error                                                
Std Dev                                                

8AM Forecasts
Updated: at
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° 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
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ
% Succ                                                
Ave Error                                                
Net Error                                                
Std Dev                                                

10AM Forecasts
Updated: at
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° 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
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ
% Succ                                                
Ave Error                                                
Net Error                                                
Std Dev                                                

12PM Forecasts
Updated: at
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° 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
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ
% Succ                                                
Ave Error                                                
Net Error                                                
Std Dev                                                

2PM Forecasts
Updated: at
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° 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
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ
% Succ                                                
Ave Error                                                
Net Error                                                
Std Dev                                                

4PM Forecasts
Updated: at
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° 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
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ
% Succ                                                
Ave Error                                                
Net Error                                                
Std Dev                                                

6PM Forecasts
Updated: at
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° 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
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ
% Succ                                                
Ave Error                                                
Net Error                                                
Std Dev                                                

8PM Forecasts
Updated: at
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° 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
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ
% Succ                                                
Ave Error                                                
Net Error                                                
Std Dev                                                

10PM Forecasts
Updated: January 19, 2018 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 NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
January 19, 2018 31   29 58   62 38   34 62   67 40   38 65   70 51   56 64   69
January 18, 2018 26 22.8 24 54 40.3 58 32   27 60   63 38   32 60   67 39   37 64   71
January 17, 2018 22 22.1 19 42 56.8 45 27 22.8 25 54 40.3 59 32   28 57   63 39   33 64   67
January 13, 2018 25 28.9 24 40 55.2 46 21 22.1 20 46 56.8 50 26 22.8 24 50 40.3 59 32   31 42   47
January 12, 2018 47 34.3 42 54 67.3 56 29 28.9 27 42 55.2 47 24 22.1 21 45 56.8 51 27 22.8 24 49 40.3 57
January 11, 2018 62 58.6 61 69 75.0 74 50 34.3 44 55 67.3 56 30 28.9 31 43 55.2 48 24 22.1 24 45 56.8 53
January 10, 2018 53 55.0 52 67 71.4 75 60 58.6 55 68 75.0 74 53 34.3 53 55 67.3 57 31 28.9 35 45 55.2 51
January 09, 2018 41 39.4 37 59 67.4 65 51 55.0 44 66 71.4 72 59 58.6 55 68 75.0 73 50 34.3 51 58 67.3 64
January 08, 2018 39 37.4 37 56 54.3 66 42 39.4 37 61 67.4 68 50 55.0 46 66 71.4 74 56 58.6 56 68 75.0 75
January 07, 2018 22 16.3 17 51 35.0 58 37 37.4 38 58 54.3 65 41 39.4 38 54 67.4 65 51 55.0 47 66 71.4 76
January 06, 2018 13 14.4 14 35 34.2 40 21 16.3 21 50 35.0 58 37 37.4 37 57 54.3 62 42 39.4 39 59 67.4 59
January 05, 2018 16 17.1 16 35 37.6 36 13 14.4 16 35 34.2 39 23 16.3 24 56 35.0 61 42 37.4 43 57 54.3 55
January 04, 2018 14 13.3 18 33 38.3 41 14 17.1 18 34 37.6 38 12 14.4 17 40 34.2 41 28 16.3 25 57 35.0 64
January 03, 2018 22 22.3 23 38 34.2 40 14 13.3 16 35 38.3 39 15 17.1 18 36 37.6 37 18 14.4 18 43 34.2 41
Results NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS NW Act WS
# Succ 8 6 2 2 6 4 1 5 5 5 1 2 1 3 0 2
% Succ 61.5   46.2 15.4   15.4 50.0   33.3 8.3   41.7 45.5   45.5 9.1   18.2 10.0   30.0     20.0
Ave Error 2.9   2.5 8.2   8.3 3.3   3.6 7.9   7.2 4.0   4.4 9.4   8.2 5.3   5.5 9.4   7.8
Net Error 1.5   0.2 -2.6   2.5 1.6   0.1 -2.4   2.7 2.2   1.6 -2.2   3.0 4.0   3.3 -1.0   3.8
Std Dev 3.2   2.2 5.8   6.8 4.2   3.4 5.3   7.3 5.3   5.5 5.8   6.2 5.0   5.4 6.2   6.6