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                         Wed 10/01                               Thu 10/02
EDT 3hrly          20   23   02   05   08   11   14   17   20   23   02   05   08   11   14

Rip Current Risk                     High High High High                     High High High
Rip Probability    93   94   94   94   95   94   92   93   94   94   93   92   94   94   92
Surf Height (ft)    4    4    5    5    5    5    5    5    5    5    4    4    4    4    4
Dom Period (s)     16   16   15   15   14   14   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    5
TSTM Potential   None None None None None None None None None None None None None None None
Cloud Cover      Mcld Mcld Mcld Pcld Pcld Pcld Pcld Mclr Mclr Mclr Pcld Pcld Pcld Pcld Pcld
Temperature        71   71   70   69   67   67   67   66   65   65   63   63   62   65   64
Heat Index                                                                                 
Wind (mph)       NE21 NE24 NE25 NE29 NE28 NE29 NE25 NE25 NE24 NE23 NE21 NE20 NE20 NE18 NE17
Wind Gust          28   33   33   40   38   39   36   33   32   31   29   26   25   26   24


Date                    Fri 10/03           Sat 10/04           Sun 10/05
EDT 6hrly          20   02   08   14   20   02   08   14   20   02   08   14

Rip Probability    91   89   87   85   81   84   80   85   68   77   57   71
Surf Height (ft)    4    3    3    3    2    2    2    2    2    2    2    2
Dom Period (s)     11   10   10   10   10   11   12   12   12   12   12   13
Chance Precip       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
Cloud Cover      Pcld Pcld Pcld Pcld Pcld Mclr  Clr  Clr Mclr Mclr Mclr Mclr
Temperature        63   63   62   66   64   63   62   68   67   65   64   70
Heat Index                                                                  
Wind (mph)       NE14   E8  NE7   E7  SE6  SW3   W3   S7   S7  SW5  SW3  SE7
Wind Gust          20                                                       

 
Accomack-Northampton  Beaches

Date                         Wed 10/01                               Thu 10/02
EDT 3hrly          20   23   02   05   08   11   14   17   20   23   02   05   08   11   14

Rip Current Risk                     High High High High                     High High High
Rip Probability    93   93   92   92   92   90   84   87   90   90   87   86   90   90   86
Surf Height (ft)    6    6    6    6    6    6    6    6    6    6    6    6    6    6    5
Dom Period (s)     16   16   15   15   14   14   12   12   11   11   11   11   11   11   11
Chance Precip       0    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 None
Cloud Cover      Mcld Mcld Mcld Mcld Pcld Pcld Pcld Pcld Mclr Mclr Pcld Pcld Pcld Pcld Pcld
Temperature        71   70   69   69   67   69   68   67   64   64   63   62   62   66   66
Heat Index                                                                                 
Wind (mph)       NE22 NE25 NE26 NE30 NE30 NE33 NE28 NE26 NE26 NE25 NE23 NE21 NE20 NE20 NE18
Wind Gust          29   35   36   40   39   45   38   36   35   33   30   28   26   26   25


Date                    Fri 10/03           Sat 10/04           Sun 10/05
EDT 6hrly          20   02   08   14   20   02   08   14   20   02   08   14

Rip Probability    88   86   84   79   76   79   76   83   65   77   53   73
Surf Height (ft)    5    4    4    4    3    3    3    3    3    3    3    2
Dom Period (s)     11   11   11   11   11   12   13   13   13   12   12   13
Chance Precip       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
Cloud Cover      Pcld Pcld Pcld Pcld Pcld Mclr  Clr  Clr Mclr Mclr Mclr Mclr
Temperature        63   62   62   67   64   63   63   69   66   66   65   71
Heat Index                                                                  
Wind (mph)       NE17   E9  NE8   E8  SE6   S2  NW3  SE6   S7   S3  SW2  SE7
Wind Gust          23                                                       

 
Virginia  Beach

Date                         Wed 10/01                               Thu 10/02
EDT 3hrly          20   23   02   05   08   11   14   17   20   23   02   05   08   11   14

Rip Current Risk                     High High High High                     High High High
Rip Probability    43   43   42   43   44   44   43   44   44   44   44   44   44   44   44
Surf Height (ft)    8    9    9   10   10   10   10   10   10   10    9    9    9    9    8
Dom Period (s)     16   16   15   15   14   14   12   12   11   11   11   11   11   11   12
Chance Precip      10    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 None
Cloud Cover       Cld Mcld Mcld Mcld Mcld Mcld Mcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld
Temperature        72   72   72   71   70   69   70   69   67   66   66   65   65   66   66
Heat Index                                                                                 
Wind (mph)       NE28 NE28 NE29 NE33 NE33 NE33 NE31 NE31 NE30 NE28 NE26 NE24 NE23 NE24 NE23
Wind Gust          37   37   37   44   44   43   40   40   39   37   35   32   30   31   30


Date                    Fri 10/03           Sat 10/04           Sun 10/05
EDT 6hrly          20   02   08   14   20   02   08   14   20   02   08   14

Rip Probability    44   44   44   43   42   42   41   42   38   41   36   40
Surf Height (ft)    7    6    6    5    5    4    4    4    4    4    4    4
Dom Period (s)     12   12   11   11   11   11   12   12   12   12   12   13
Chance Precip       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
Cloud Cover      Pcld Pcld Pcld Pcld Mclr Mclr Mclr Mclr Mclr Mclr Mclr Mclr
Temperature        66   65   66   68   67   66   66   69   68   68   68   72
Heat Index                                                                  
Wind (mph)       NE21 NE15 NE13 NE13   E7   E3  NE5   E8   E7  SE5   E5  E10
Wind Gust          26                                                       

 
Currituck  Beaches

Date                         Wed 10/01                               Thu 10/02
EDT 3hrly          20   23   02   05   08   11   14   17   20   23   02   05   08   11   14

Rip Current Risk                     High High High High                     High High High
Rip Probability    48   47   47   49   50   51   49   56   58   57   57   58   58   58   58
Surf Height (ft)    9   10   10   11   11   11   11   11   11   11   10   10   10   10    9
Dom Period (s)     16   16   15   15   14   14   13   13   11   11   11   11   12   12   12
Chance Precip       0    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 None
Cloud Cover       Cld Mcld Mcld Mcld Mcld Mcld Mcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld Pcld
Temperature        72   72   72   71   71   70   70   69   67   67   66   66   66   67   67
Heat Index                                                                                 
Wind (mph)        N30 NE31 NE30 NE33 NE33 NE35 NE32 NE32 NE31 NE29 NE26 NE25 NE24 NE24 NE23
Wind Gust          39   40   39   44   44   45   41   41   40   38   36   33   31   31   30


Date                    Fri 10/03           Sat 10/04           Sun 10/05
EDT 6hrly          20   02   08   14   20   02   08   14   20   02   08   14

Rip Probability    59   58   59   58   58   57   58   57   55   54   54   53
Surf Height (ft)    8    7    7    6    5    5    5    5    5    5    4    4
Dom Period (s)     12   12   12   11   11   11   12   12   12   12   12   13
Chance Precip       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
Cloud Cover      Pcld Pcld Pcld Pcld Pcld Mclr Mclr Mclr Mclr Mclr Mclr Mclr
Temperature        66   67   67   68   68   67   68   70   69   70   71   72
Heat Index                                                                  
Wind (mph)       NE20 NE15 NE14 NE13  NE6  NE3  NE6   E7   E6   E5   E5   E9
Wind Gust          26   20        18   12             12                  14