National Weather Service United States Department of Commerce

Boston / Norton, MA

Weather Forecast Office

Experimental Surf Forecast Matrix

Weather.gov > Boston / Norton, MA > Experimental Surf Forecast Matrix

 

 

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

 

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

 

In the tabs below you can view Surf Forecast Matrices for various beaches over the Boston/Norton, MA 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.

 

 

Barnstable,  MA  East  Coast 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY    58   18   49   89   59   17   21   75   50   16   17   78   83   51
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    1    1    1    1    2    2
DOM PERIOD (S)     13   13   13   13   11   12   12   12   10   10    9    9   12   12
CHANCE PRECIP       5   10   10   10    5    5    5    5    5    5    5    5    5    0
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
CLOUD COVER       CLD  CLD MCLD MCLD MCLD MCLD MCLD PCLD PCLD PCLD MCLR MCLR MCLR MCLR
TEMPERATURE        42   44   46   47   47   45   44   44   42   44   46   47   46   44
HEAT INDEX                                                                            
WIND (MPH)        NW3   N3  NE5  NE6  NE6  NE6  NE6  NE8 NE12 NE10 NE13 NE13 NE13 NE10
WIND GUST           9                                           17   18   20   20   18


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY    38   23   42   39   47   46   47   45   44   47   41   46   39   MM   MM
SURF HEIGHT (FT)    2    2    2    3    3    3    3    3    3    3    3    3    3    3    3
DOM PERIOD (S)     12   11    9   10    9    9   10    9    6    0    9    9    9    9    9
CHANCE PRECIP       0    0    5   10   20   20   20   30   50   70   70   60   40   30   30
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR PCLD PCLD  CLD MCLD MCLD MCLD  CLD  CLD  CLD MCLD  CLD MCLD MCLD
TEMPERATURE        43   44   45   43   43   45   47   46   46   47   49   48   46   46   49
HEAT INDEX                                                                                 
WIND (MPH)        NE9 NE12 NE13 NE10  NE9  NE9 NE10   E8   E8   E8   E9   E7 NW15 NW16  W15
WIND GUST          14   17   20   16   14   15   15   14   14   14   14   13   20   22   21

 
Nantucket,  MA  East  Coast 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY     0    0    0    0    0    0    0    0    0    0    0    0    0    0
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    2    2    2    2    2    3
DOM PERIOD (S)     13   13   13   13   13   11    7    6    7    7    7    8    8    9
CHANCE PRECIP      50   60   40   20   10    5    5   10   10   10    5    5    5    5
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
CLOUD COVER       CLD  CLD  CLD  CLD  CLD MCLD MCLD MCLD PCLD PCLD PCLD MCLR MCLR MCLR
TEMPERATURE        45   45   46   47   47   44   45   45   43   46   48   49   48   46
HEAT INDEX                                                                            
WIND (MPH)        NW6  NE7   E9   E8  NE9 NE10 NE10 NE12 NE15 NE15 NE17 NE18 NE20 NE16
WIND GUST                                                       21   24   26   25   24


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY     0    0    0    0    0    0    0    0    0    0    0    0    0   MM   MM
SURF HEIGHT (FT)    3    3    3    4    4    4    4    4    4    4    4    3    4    4    3
DOM PERIOD (S)      9    9   10    0   10    9   10    0    0    0    9    9    9    9    9
CHANCE PRECIP       5    5   10   10   20   20   20   20   50   70   70   60   40   30   20
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR PCLD PCLD  CLD MCLD MCLD MCLD  CLD MCLD MCLD MCLD  CLD PCLD PCLD
TEMPERATURE        45   45   46   45   46   47   49   47   48   49   50   50   48   48   50
HEAT INDEX                                                                                 
WIND (MPH)       NE14 NE16 NE17 NE14 NE13 NE13 NE12  E10   E9  E10  E10  SE9  W17  W20  W20
WIND GUST                    22

 
Nantucket,  MA  South  Coast 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY    13   10   16   11    8   16   29   29   23   29   43   35   23   38
SURF HEIGHT (FT)    1    1    1    1    1    1    1    2    2    2    2    2    2    2
DOM PERIOD (S)     14   13   10   13   13   12   11    7    7    7    8    8    9    9
CHANCE PRECIP      60   60   40   20   10    5    5   10   10   10    5    5    5    5
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
CLOUD COVER       CLD  CLD  CLD  CLD  CLD MCLD MCLD MCLD PCLD PCLD PCLD MCLR MCLR MCLR
TEMPERATURE        44   45   46   47   47   44   45   45   43   46   49   51   49   46
HEAT INDEX                                                                            
WIND (MPH)         N5  NE8  E10   E9 NE10 NE10 NE10 NE12 NE15 NE15 NE16 NE18 NE20 NE16
WIND GUST                                                       22   25   26   26   24


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY    12    9   13   11   19   15   19   11   17    9   14    7   26   MM   MM
SURF HEIGHT (FT)    2    3    3    3    3    3    3    3    3    3    3    3    4    3    3
DOM PERIOD (S)      9    9   10   10   10   10   10   10   10    0    9    9    9    9   10
CHANCE PRECIP       5    5   10   10   20   20   10   20   50   70   70   50   40   30   20
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR PCLD PCLD MCLD MCLD MCLD MCLD  CLD  CLD MCLD MCLD MCLD PCLD PCLD
TEMPERATURE        45   45   47   45   45   46   49   47   47   48   51   49   48   47   50
HEAT INDEX                                                                                 
WIND (MPH)       NE14 NE16 NE17 NE14 NE12 NE12 NE13  E10   E9   E9  E10  SE9  W18  W20  W21
WIND GUST                    22

 
Dukes,  MA 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY    13   26   41   28   23   45   59   48   36   54   68   52   32   54
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    1    2    2    2    2    2
DOM PERIOD (S)     14   13   13   13   13   11    8    7    7    7    8    8   10   10
CHANCE PRECIP      60   50   30   20   10    5    5    5    5    5    5    5    5    5
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
CLOUD COVER       CLD  CLD  CLD  CLD MCLD PCLD PCLD PCLD PCLD PCLD MCLR MCLR MCLR MCLR
TEMPERATURE        42   45   47   48   49   46   45   45   43   46   50   52   50   47
HEAT INDEX                                                                            
WIND (MPH)        NW5  NE7  E10   E9   E9  NE8  NE8 NE10 NE12 NE13 NE14 NE16 NE16 NE13
WIND GUST                                                       20   22   24   23   21


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY     9    7    9    6   11    8   12    6   12    6   10    5   17   MM   MM
SURF HEIGHT (FT)    2    2    2    2    2    2    2    2    2    2    2    2    2    2    2
DOM PERIOD (S)     10   10   10   10   10   10   10   10   10   10    9    9    9    9    9
CHANCE PRECIP       5    5    5   10   10   20   10   30   50   70   70   50   40   30   20
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR MCLR PCLD MCLD MCLD PCLD  CLD  CLD  CLD MCLD MCLD MCLD PCLD PCLD
TEMPERATURE        45   46   50   46   46   47   50   48   47   49   52   50   47   47   51
HEAT INDEX                                                                                 
WIND (MPH)       NE12 NE14 NE16 NE13 NE10 NE12 NE12  E10   E9   E8   E9  NW9 NW18  W20  W21
WIND GUST                    21

 
Southern  Bristol,  MA 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY     0    0    0    0    0    0    0    0    0    0    0    0    0    0
SURF HEIGHT (FT)    0    0    0    1    1    1    1    1    1    1    1    1    1    1
DOM PERIOD (S)      6    6    9    7    6    8    8    7    7    7    7    8   10   10
CHANCE PRECIP      40   20   20   10    5    0    5    5    5    5    5    0    5    0
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
CLOUD COVER       CLD  CLD  CLD  CLD PCLD PCLD PCLD PCLD PCLD MCLR MCLR MCLR MCLR MCLR
TEMPERATURE        42   44   48   50   51   47   45   44   43   47   54   56   54   49
HEAT INDEX                                                                            
WIND (MPH)         W5  NE5  NE8   E7   E8   E6  NE6  NE7  NE9  NE9 NE13 NE14 NE14  NE9
WIND GUST                                                       17   21   22   22   17


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY     0    0    0    0    0    0    0    0    0    0    0    0    0   MM   MM
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1
DOM PERIOD (S)     10   10   11   10   10   10   10   10    0   10    6    9    9    8    8
CHANCE PRECIP       0    0    5    5   10   10   10   30   60   70   70   50   40   30   20
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR MCLR PCLD MCLD MCLD PCLD MCLD  CLD  CLD MCLD MCLD MCLD PCLD MCLD
TEMPERATURE        43   46   54   45   44   46   53   49   47   48   53   50   47   46   52
HEAT INDEX                                                                                 
WIND (MPH)        NE8 NE10 NE13  NE9  NE7  NE8 NE10   E8   E7   E6   E9  NW7 NW14 NW16  W17
WIND GUST          13   15   20   15   12   13   15   13   12             12        21   23

 
Newport,  RI 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY     0    0    0    0    0    0    0    0    0    0    0    0    0    0
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    1    1    1    1    1    1
DOM PERIOD (S)      8    7   13   13    7    8    7    7    7    7    8    8   10   10
CHANCE PRECIP      50   30   20   10    5    0    5    5    5    5    5    0    0    0
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
CLOUD COVER       CLD  CLD  CLD  CLD PCLD PCLD PCLD PCLD PCLD MCLR MCLR MCLR MCLR MCLR
TEMPERATURE        42   44   48   49   50   48   46   44   42   47   54   57   55   50
HEAT INDEX                                                                            
WIND (MPH)         N5  NE7  NE9   E8   E8   E7  NE6  NE8  NE9 NE10 NE10 NE14 NE14 NE10
WIND GUST                                                       17   20   22   21   17


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY     0    0    0    0    0    0    0    0    0    0    0    0    0   MM   MM
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    1    1    1    1    2    2    1
DOM PERIOD (S)     10   10   11   10   10   10   10   10   10   10    9    9    9    9    9
CHANCE PRECIP       0    0    5    5   10   10   10   30   60   70   60   50   30   30   20
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR MCLR PCLD MCLD MCLD PCLD MCLD  CLD MCLD MCLD MCLD MCLD PCLD PCLD
TEMPERATURE        44   46   54   47   45   47   53   50   47   49   52   50   47   47   51
HEAT INDEX                                                                                 
WIND (MPH)        NE9 NE10 NE13 NE10  NE8  NE9 NE10   E9   E8   E7   E9  NW9 NW15 NW17  W17
WIND GUST               15   18   15                                      14   20        22

 
Washington,  RI 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY     8   17   35   28   22   44   59   47   31   49   72   66   43   55
SURF HEIGHT (FT)    0    0    1    1    1    1    1    1    1    1    1    1    1    1
DOM PERIOD (S)     14   13   13   13   13   13    7    7    7    7    8    8    8   10
CHANCE PRECIP      60   30   20   10    5    0    0    5    5    5    5    0    0    0
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
CLOUD COVER       CLD  CLD  CLD  CLD PCLD PCLD PCLD PCLD MCLR MCLR MCLR MCLR MCLR MCLR
TEMPERATURE        42   43   47   49   51   48   45   44   40   46   55   58   57   51
HEAT INDEX                                                                            
WIND (MPH)         N3  NE7  NE8   E8   E8   E6  NE5   N7   N8   N9 NE10 NE12 NE10  NE8
WIND GUST               12                                 13   17   18   21   20   15


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY    14   10   16    8   17   11   21   10   19    9   16    6   24   MM   MM
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1
DOM PERIOD (S)     10   10   10   10   10   10   10   10   10   10    9    9    9    9    9
CHANCE PRECIP       0    0    5    5   10    5   10   30   60   70   60   50   30   20   20
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR MCLR PCLD MCLD MCLD PCLD MCLD  CLD MCLD MCLD MCLD MCLD PCLD PCLD
TEMPERATURE        43   46   57   48   44   46   54   50   47   47   53   50   46   45   52
HEAT INDEX                                                                                 
WIND (MPH)        NE6  NE8  E10  NE7  NE6  NE7   E9   E7   E5   E5   E7  NW8 NW13 NW14  W15
WIND GUST          12   14   16   13        12   14   12   10        12   14   20   20   21

 
Block  Island,  RI 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY     0    0    0    0    0    0    0    0    0    0    0    0    0    0
SURF HEIGHT (FT)    2    2    2    2    3    3    3    3    3    3    3    3    3    3
DOM PERIOD (S)     10   13   13   13   12    9    6    7    7    7    7    7    7    9
CHANCE PRECIP      70   60   30   10    5    0    5    5    5    5    5    0    5    0
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
CLOUD COVER       CLD  CLD  CLD  CLD PCLD PCLD PCLD PCLD PCLD MCLR MCLR MCLR MCLR MCLR
TEMPERATURE        41   43   46   46   47   46   46   46   43   46   50   52   51   49
HEAT INDEX                                                                            
WIND (MPH)        NE6 NE12 NE14  E12  E10   E9  NE8  N10 NE13 NE13 NE13 NE13 NE14 NE10
WIND GUST               17                                      21   22   22   22   21


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY     0    0    0    0    0    0    0    0    0    0    0    0    0   MM   MM
SURF HEIGHT (FT)    3    3    3    3    3    3    3    3    3    3    3    3    4    4    3
DOM PERIOD (S)      9    9    9   10   10    9   10   10    9   10    9    9    9    9    9
CHANCE PRECIP       0    0    5    5   10    5   10   30   60   70   60   40   30   20   20
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR MCLR PCLD MCLD MCLD MCLD  CLD  CLD  CLD MCLD MCLD MCLD PCLD PCLD
TEMPERATURE        46   46   50   47   46   46   50   48   47   48   51   49   47   46   49
HEAT INDEX                                                                                 
WIND (MPH)       NE12 NE13  E13 NE13 NE10 NE10  E10  E12   E9   E8   E9 NW13 NW18 NW20  W20
WIND GUST                    18                                                23        25

 
Eastern  Plymouth,  MA 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY    25    6   34   83   40    5   15   69   30    2    5   67   49    5
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    1    1    1    1    1    1
DOM PERIOD (S)     10   13   13   13   10   11   12   12   12   10   10   10   12   12
CHANCE PRECIP       5   10   10    5    5    0    0    0    5    5    0    0    0    0
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
CLOUD COVER       CLD MCLD MCLD MCLD MCLD PCLD PCLD PCLD PCLD PCLD MCLR MCLR MCLR MCLR
TEMPERATURE        42   44   48   49   49   47   44   44   41   45   49   49   48   45
HEAT INDEX                                                                            
WIND (MPH)         W3   N3  NE5  NE6   E6   E3  NE5   N6  NE9  NE9 NE10 NE10 NE10  NE7
WIND GUST           9                                           15   17   18   17   14


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY    22    2   29    9   36   34   42   37   34   41   27   38   25   MM   MM
SURF HEIGHT (FT)    1    1    1    1    1    2    2    2    1    1    1    2    2    2    2
DOM PERIOD (S)     12   11    7    9    9    9    9   10    9    9    7    8    9    9    9
CHANCE PRECIP       0    0    5   10   20   20   20   30   60   70   70   60   40   30   30
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR MCLR PCLD MCLD MCLD MCLD MCLD  CLD  CLD  CLD MCLD MCLD MCLD MCLD
TEMPERATURE        43   45   48   44   43   45   48   47   46   47   50   49   47   47   51
HEAT INDEX                                                                                 
WIND (MPH)        NE7  NE9 NE12  NE8  NE7  NE8  NE9   E7   E6   E6   E8  NE7 NW14 NW16 NW15
WIND GUST          12   15   18   14   13   14   15   13   13   12   14   13   21   22   21

 
Suffolk  and  Eastern  Norfolk,  MA 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY    25    6   34   83   40    5   15   69   30    2    5   67   49    5
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    1    1    1    1    1    1
DOM PERIOD (S)     10   13   13   13   12   11   12   12   12   11   11   11   12   12
CHANCE PRECIP       5    5    5    5    5    0    0    0    5    5    0    0    0    0
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
CLOUD COVER       CLD MCLD MCLD MCLD MCLD PCLD PCLD PCLD PCLD PCLD MCLR MCLR MCLR MCLR
TEMPERATURE        42   45   48   50   49   48   45   44   41   45   49   49   49   46
HEAT INDEX                                                                            
WIND (MPH)         W3   N3  NE6   E6   E6   E5  NE5   N6  NE8  NE8  NE9 NE10 NE10   E7
WIND GUST           8                                           14   16   17   17   14


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY    16    1   21    6   26   25   30   26   25   29   19   27   18   MM   MM
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    1    1    1    1    2    2    2
DOM PERIOD (S)     12   12    7    9    9    9    9   10    9    9    8    8    9    9    9
CHANCE PRECIP       0    0    5   10   20   20   20   30   60   70   70   60   40   30   30
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR MCLR PCLD MCLD MCLD MCLD MCLD  CLD  CLD  CLD MCLD MCLD MCLD MCLD
TEMPERATURE        43   45   49   44   43   45   49   47   46   47   50   49   48   47   51
HEAT INDEX                                                                                 
WIND (MPH)        NE6  NE8 NE12  NE8  NE7  NE8  NE9   E8   E6   E6   E8  NE8 NW15 NW16 NW15
WIND GUST               14   18   14   12   13   15   13   12   12   14   13   20   21   21

 
Eastern  Essex,  MA 

DATE               SUN 04/26                          MON 04/27
EDT 3HRLY          05   08   11   14   17   20   23   02   05   08   11   14   17   20

RIP CURRENT RISK       LOW  LOW  LOW  LOW                      LOW  LOW  LOW  LOW     
RIP PROBABILITY    16    3   23   71   20    2    8   53   16    1    3   48   27    3
SURF HEIGHT (FT)    1    1    1    1    1    1    1    1    1    1    1    1    1    1
DOM PERIOD (S)      9   13   13   13   13   10   12   10   10   12   12   12   12    7
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      MCLD MCLD MCLD MCLD MCLD PCLD PCLD PCLD PCLD PCLD MCLR MCLR MCLR MCLR
TEMPERATURE        41   44   49   50   50   48   45   44   41   45   48   49   48   46
HEAT INDEX                                                                            
WIND (MPH)         W3   N3  NE5   E6  SE6  SE3  NE3   N6  NE7  NE7  NE8   E8   E8   E6
WIND GUST                                                       12   14   15   14   12


DATE               TUE 04/28           WED 04/29           THU 04/30           FRI 05/01
EDT 6HRLY          02   08   14   20   02   08   14   20   02   08   14   20   02   08   14

RIP PROBABILITY    18    4   32   16   44   39   44   39   39   43   33   41   30   MM   MM
SURF HEIGHT (FT)    1    1    2    2    3    3    3    2    2    2    2    2    2    3    3
DOM PERIOD (S)      7   12    7    9    9    9    9   10    1    9    9    9    9    9    9
CHANCE PRECIP       0    0    5   10   10   20   20   30   60   70   70   60   50   40   30
TSTM POTENTIAL   NONE NONE NONE NONE NONE NONE NONE NONE NONE  LOW NONE NONE NONE NONE NONE
CLOUD COVER      MCLR MCLR MCLR PCLD MCLD MCLD MCLD MCLD  CLD  CLD  CLD MCLD MCLD MCLD MCLD
TEMPERATURE        43   45   48   43   43   44   47   46   45   46   48   48   47   47   50
HEAT INDEX                                                                                 
WIND (MPH)        NE6  NE7 NE10   E8  NE7  NE8  NE9   E8   E7   E7   E9  NE8  N15 NW16 NW15
WIND GUST               12   16   13             14   13   12   12   14   14   20   21   21

 
Follow us on X  Follow us on X
Follow us on Facebook  Follow us on Facebook
Follow us on YouTube  Follow us on YouTube
BOX RSS Feed  BOX RSS Feed

Weather
Hazards
Observations (tabular)
Observations (map)
Analysis
Radar
Satellite (east)
Satellite (west)
River and Lakes
Upper Air Soundings
Upper Air Maps
Buoys
Air Quality

Forecast
Discussion
Products
Graphical
Hourly Graph
Winter Weather
Severe Weather
Tropical Weather
Marine
Coastal
Surf
Rivers and Lakes
Aviation
Fire Weather
Climate Prediction
Drought
Space Weather
Sun / Moon

Climate/Past Weather
Weather Reports
Observation Database
Historical Records
Dewpoint Climatology
Precipitation Climatology
Snow Analysis
Streamflow
Snowfall Events
Drought
Climate Prediction
Top Ten Daily Records
Tropical Cyclone Reports
Drought Information Statement
StageIV Precipitation Analysis
Monthly Precip Reports

Weather Safety
Hurricanes
Tornadoes
Thunderstorms
Winter Storms
Floods
Drought
Heat
Earthquakes
Tsunamis
Rip Currents
Sun Burn
Make A Plan
Build A Kit
Shelter
Evacuate
Disaster Recovery
NWS Safety Campaign

Programs
Weather Ready Nation
NOAA Weather Radio
Cooperative Observer
CoCoRaHS
SkyWarn
StormReady
Student Volunteer
Get Involved

Education
Hazard Criteria
Local Research
Product Descriptions
Latest News
JetStream School
Owlie Skywarn
Brochures
Glossary

About
About NWS
About NWS Boston
Our Products
Local Research
Contact Us
Organization

National Centers
National Center for Environmental Prediction
Weather Prediction Center
Ocean Prediction Center
Storm Prediction Center
National Hurricane Center
Aviation Weather Center
Climate Prediction Center
Environmntl Modeling Center
Space Wx Prediction Center