National Weather Service United States Department of Commerce

 

***  EXPERIMENTAL - NOT FOR OPERATIONAL USE   ***

 

Experimental Surf Forecast Matrix
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What's This?
Product Description Document

 

In the tabs below you can view Surf Forecast Matrices for various beaches over the Wakefield, VA forecast area.  This product is experimental and not intended to be substituted for the official Surf Zone Forecast, which can be viewed HERE.  Additional information on this project and variable definitions can be found HERE. We are seeking feedback on this over the next several months, so please send us your input via an online survey.

The Rip Probabilities included in the matrices below are from a rip current forecast model tied to NOAA's Nearshore Wave Prediction System. This model predicts the probabilities of hazardous rip currents occurring using output from the nearshore wave model and predicted tide levels. Values are calculated from 0-100%, hourly through 144 hours.

 

 

Maryland  Beaches

Date               Thu 10/02                          Fri 10/03
EDT 3hrly          05   08   11   14   17   20   23   02   05   08   11   14   17   20

Rip Current Risk      High High High High                     High High High High     
Rip Probability    92   93   94   91   89   90   92   89   84   86   89   84   75   79
Surf Height (ft)    4    4    4    4    4    3    3    3    3    3    3    2    2    2
Dom Period (s)     10   10   10   11   11   10   10   10   10   10   10   10   10   10
Chance Precip       0    0    0    0    0    0    0    0    0    0    0    0    0    0
TSTM Potential   None None None None None None None None None None None None None None
Cloud Cover      Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Mclr Mclr
Temperature        63   63   65   65   65   63   62   61   59   60   65   67   66   63
Heat Index                                                                            
Wind (mph)       NE18 NE18 NE18 NE17 NE15  E14  E12   E9   E7  NE7   E8   E7   E6  SE5
Wind Gust          24   24   24   23   21                                             


Date               Sat 10/04           Sun 10/05           Mon 10/06           Tue 10/07
EDT 6hrly          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

Rip Probability    83   77   78   64   75   57   73   49   70   43   70   41   68   MM   MM
Surf Height (ft)    2    2    2    2    2    2    2    2    2    2    2    2    2    1    1
Dom Period (s)     11   11   12   12   11   11   12   13   13   12   12    9    9   MM   MM
Chance Precip       0    0    0    0    0    0    0    0    0    0    0    0    5    5    5
TSTM Potential   None None None None None None None None None None None None None None None
Cloud Cover      Mclr  Clr  Clr  Clr  Clr Mclr Mclr Mclr Mclr Mclr Mclr Mclr Mclr Mclr Pcld
Temperature        60   59   68   67   65   63   70   68   67   66   71   70   68   67   72
Heat Index                                                                                 
Wind (mph)        SW3  NW3  SE5   S6  SW3  NW2  SE7   S7   S5  SW3  SE8   S8   S6  SW5  S10
Wind Gust                                                                                15

 
Accomack-Northampton  Beaches

Date               Thu 10/02                          Fri 10/03
EDT 3hrly          05   08   11   14   17   20   23   02   05   08   11   14   17   20

Rip Current Risk      High High High High                     High High High High     
Rip Probability    86   90   90   85   81   87   90   84   77   84   87   78   64   75
Surf Height (ft)    6    6    6    5    5    5    4    4    4    4    4    3    3    3
Dom Period (s)     11   11   11   11   11   11   11   11   11   11   11   11   11   11
Chance Precip       0    0    0    0    0    0    0    0    0    0    0    0    0    0
TSTM Potential   None None None None None None None None None None None None None None
Cloud Cover      Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Mclr Mclr
Temperature        63   63   66   67   67   64   62   61   60   60   66   67   67   64
Heat Index                                                                            
Wind (mph)       NE20 NE20 NE20 NE18 NE16  E15  E14  E10   E9  NE9  NE9   E9   E8   E6
Wind Gust          25   26   25   24   23   20                                        


Date               Sat 10/04           Sun 10/05           Mon 10/06           Tue 10/07
EDT 6hrly          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

Rip Probability    80   72   78   58   73   48   71   39   70   32   72   30   71   MM   MM
Surf Height (ft)    3    3    3    3    2    2    2    2    2    2    2    2    2    2    2
Dom Period (s)     11   12   12   12   11   11   12   12   13   12   12    9    9   MM   MM
Chance Precip       0    0    0    0    0    0    0    0    0    0    0    0    0    5    5
TSTM Potential   None None None None None None None None None None None None None None None
Cloud Cover      Mclr  Clr  Clr  Clr  Clr Mclr Mclr Mclr Mclr Mclr Mclr Mclr Mclr Mclr Pcld
Temperature        61   61   69   66   65   65   71   68   67   68   72   69   68   68   73
Heat Index                                                                                 
Wind (mph)         S2   N3  SE3   S6   S2   N1  SE7  SE7   S5  SE3  SE8  SE8   S6   S5  S10
Wind Gust                                                                                  

 
Virginia  Beach

Date               Thu 10/02                          Fri 10/03
EDT 3hrly          05   08   11   14   17   20   23   02   05   08   11   14   17   20

Rip Current Risk      High High High High                     High High High High     
Rip Probability    44   44   44   44   43   44   44   44   43   43   44   43   40   41
Surf Height (ft)    9    9    9    7    7    7    7    6    6    6    5    5    5    4
Dom Period (s)     10   11   11   11   11   11   11   11   11   11   11   11   11   11
Chance Precip       0    0    0    0    0    0    0    0    0    0    0    0    0    0
TSTM Potential   None None None None None None None None None None None None None None
Cloud Cover      Pcld Pcld Pcld Pcld Pcld Pcld Mclr Mclr Mclr Mclr Pcld Mclr Mclr Mclr
Temperature        65   64   66   67   67   65   64   63   63   64   68   68   68   66
Heat Index                                                                            
Wind (mph)       NE22 NE22 NE21 NE20 NE20 NE17 NE16 NE14 NE14 NE14 NE14 NE13 NE12  NE8
Wind Gust          29   29   28   26   25   23   21                                   


Date               Sat 10/04           Sun 10/05           Mon 10/06           Tue 10/07
EDT 6hrly          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

Rip Probability    42   39   41   34   38   29   36   24   33   16   30   14   27   MM   MM
Surf Height (ft)    4    4    4    4    4    3    3    3    3    3    3    3    3    3    3
Dom Period (s)     11   11   11   11   11   11   11   12   13   13   13    9    9   MM   MM
Chance Precip       0    0    0    0    0    0    0    0    0    0    0    0    0    0    5
TSTM Potential   None None None None None None None None None None None None None None None
Cloud Cover      Mclr Mclr Mclr Mclr Mclr Mclr Pcld Pcld Pcld Pcld Mclr Mclr Mclr Mclr Pcld
Temperature        64   64   69   68   68   69   72   70   71   71   73   71   70   70   73
Heat Index                                                                                 
Wind (mph)        NE5  NE7   E8   E7   E5   E5  E10   E8  SE7   E6  E10  SE8  SE6  SE5 SE10
Wind Gust                                                            15                    

 
Currituck  Beaches

Date               Thu 10/02                          Fri 10/03
EDT 3hrly          05   08   11   14   17   20   23   02   05   08   11   14   17   20

Rip Current Risk      High High High High                     High High High High     
Rip Probability    57   58   58   57   57   59   58   58   58   59   57   57   56   57
Surf Height (ft)    9    9    9    7    7    7    7    7    7    6    5    5    5    5
Dom Period (s)     11   11   11   11   11   12   12   12   12   12   12   11   11   11
Chance Precip       0    0    0    0    0    0    0    0    0    0    0    0    0    0
TSTM Potential   None None None None None None None None None None None None None None
Cloud Cover      Pcld Pcld Pcld Pcld Pcld Pcld Mclr Mclr Mclr Pcld Pcld Pcld Mclr Mclr
Temperature        66   67   67   68   68   66   65   65   65   66   69   69   69   67
Heat Index                                                                            
Wind (mph)       NE24 NE23 NE23 NE22 NE21 NE18 NE16 NE15 NE15 NE15 NE15 NE14 NE12  NE9
Wind Gust          31   30   30   28   26   25   21   20   20   20   21   20   18     


Date               Sat 10/04           Sun 10/05           Mon 10/06           Tue 10/07
EDT 6hrly          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

Rip Probability    56   55   54   51   50   48   48   42   44   33   41   26   36   MM   MM
Surf Height (ft)    5    4    4    4    4    4    4    4    3    3    3    3    3    3    3
Dom Period (s)     11   11   11   11   12   11   11   12   13   13   13    9    9   MM   MM
Chance Precip       0    0    0    0    0    0    0    0    0    0    0    0    0    0    5
TSTM Potential   None None None None None None None None None None None None None None None
Cloud Cover      Mclr Mclr Mclr Mclr Mclr Pcld Pcld Pcld Pcld Mclr Mclr Mclr Pcld Mclr Pcld
Temperature        66   66   70   69   70   70   72   71   72   72   74   72   71   72   74
Heat Index                                                                                 
Wind (mph)        NE6  NE8  NE7   E5   E3   E6  E10   E7   E7   E7   E9  SE7  SE5  SE5  SE8
Wind Gust                    12   10             16   13             16                  13