Area Forecast Matrices
Issued by NWS Brownsville, TX

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Area Forecast Matrices
National Weather Service Brownsville TX
355 AM CST Wed Dec 13 2017

TXZ253-132200-
Hidalgo-
Including the cities of McAllen, Edinburg, Pharr, Mission,
and Weslaco
355 AM CST Wed Dec 13 2017

Date             Wed 12/13/17            Thu 12/14/17            Fri 12/15/17
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      72          52          75          50          50
Temp             42 51 66 71 65 58 55 53 53 58 69 75 71 66 62 56 51 49 48 48 47
Dewpt            36 38 36 34 37 42 44 47 49 49 51 50 54 58 57 51 47 42 42 41 42
RH               79 61 33 26 35 55 66 80 86 72 53 41 55 75 84 83 86 77 80 77 83
Wind dir         NE SW SE SE SE SE  S  S  S  S SE NW NE  N  N  N  N  N  N  N NW
Wind spd          1  1  5  6  5  9  8  6  6  5  9  2  4  5  8 12 13 12 12 10  8
Wind gust                                                        24
Clouds           FW FW FW FW SC SC B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2
PoP 12hr                      0           0          20          70          70
QPF 12hr                      0           0        0.01   0.28-0.36   0.35-0.51
Snow 12hr                    MM          MM          MM
Rain                                                  C  C  L  L  L  L  L  L  C
Rain shwrs                                      S  S


Date               Sat 12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            44    59      49    70      51    66      49    70
Temp          45   44 58 57 54   50 68 68 58   51 65 63 55   50 68 66
Dewpt         41   41 45 48 48   47 55 53 52   48 49 48 47   46 50 49
PWind dir          NW    NW      SW    NW       N     N       N     N
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   B2 B2 B2 B2   B1 B1 SC SC   SC B1 B1 B1   B1 SC SC
PoP 12hr           50    40      20    10      10    20      10    10
Rain           C    C
Rain shwrs             C  C  S    S                S  S

$$
TXZ255-132200-
Inland Cameron-
Including the cities of Brownsville and Harlingen
355 AM CST Wed Dec 13 2017

Date             Wed 12/13/17            Thu 12/14/17            Fri 12/15/17
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      71          54          76    51 55 59    52 56 61
Temp             44 53 66 70 63 57 55 55 54 60 72 76 71 68 66 61 57 54 53 50 50
Dewpt            39 42 41 41 46 50 50 51 52 55 58 57 61 63 62 58 54 50 48 45 45
RH               82 66 40 35 54 77 83 86 93 84 61 52 71 84 87 90 90 86 83 83 83
Wind dir         NW NW SE SE SE  S  S  S  S  S  S  S  E NE  N  N  N  N  N  N  N
Wind spd          4  3  3  6  8  8  8  6  6  6  9  9  5  3  5 13 17 17 17 16 12
Wind gust                                                        27 31 28 27
Clouds           FW FW FW FW SC SC B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV
PoP 12hr                      0           0          20          70          70
QPF 12hr                      0           0        0.01   0.29-0.40   0.44-0.60
Snow 12hr                    MM          MM          MM
Rain                                                  C  C  L  L  L  L  L  L  C
Rain shwrs                                      S  S


Date               Sat 12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            45    60      51    70      54    67      51    70
Temp          47   45 59 57 55   52 68 67 60   54 66 63 57   52 69 65
Dewpt         43   42 48 51 50   49 57 57 55   52 53 52 50   49 53 52
PWind dir          NW    NW       W    NW       N     N       N     N
Wind char          GN    GN      LT    LT      LT    GN      LT    GN
Avg clouds    OV   B2 B2 B2 B2   B2 B1 B1 B1   B1 B1 B1 B1   B1 SC SC
PoP 12hr           50    30      30    10      10    20      10    10
Rain           C    C
Rain shwrs             C  C  C    S                S  S

$$
TXZ257-132200-
Coastal Cameron-
Including the cities of Port Isabel, South Padre Island,
Laguna Heights, and Laguna Vista
355 AM CST Wed Dec 13 2017

Date             Wed 12/13/17            Thu 12/14/17            Fri 12/15/17
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      70    53 57 61          75    56 59 62    57 60 63
Temp             48 56 65 68 63 59 58 58 58 62 71 75 70 70 68 64 61 59 58 55 55
Dewpt            43 46 46 48 51 53 53 54 55 57 62 62 64 64 63 61 58 55 53 50 50
RH               83 69 50 49 65 80 83 86 90 84 73 64 81 81 84 90 90 87 83 83 83
Wind dir          N  W SE SE SE  S  S  S  S  S  S  S  E NE  N  N  N  N  N  N  N
Wind spd          4  4  2  5  9 10 11 11  9  8  8 10  5  4  6 14 19 21 20 18 16
Wind gust                                                     27 33 40 36 32 28
Clouds           FW FW FW FW SC SC B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV
PoP 12hr                      0           0          20          70          70
QPF 12hr                      0           0        0.01   0.37-0.43   0.49-0.60
Snow 12hr                    MM          MM          MM
Rain                                                  C  C  L  L  L  L  L  L  C
Rain shwrs                                      S  S


Date               Sat 12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            48    61      53    69      57    67      54    69
Temp          51   48 60 58 58   54 68 65 64   57 66 63 59   55 69 65
Dewpt         46   45 51 53 52   51 58 58 57   54 56 55 53   51 55 55
PWind dir           N    NW       W    NW       N     N       N     N
Wind char          GN    GN      LT    LT      GN    GN      GN    GN
Avg clouds    OV   B2 B2 B2 B2   B2 B1 B1 B1   B1 B1 B1 B1   B1 SC SC
PoP 12hr           50    30      30    10      10    20      10    10
Rain           C    C
Rain shwrs             C  C  C    S        S    S  S  S

$$
TXZ252-132200-
Starr-
Including the cities of Rio Grande City and Roma
355 AM CST Wed Dec 13 2017

Date             Wed 12/13/17            Thu 12/14/17            Fri 12/15/17
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      71          51          73          49          49
Temp             42 51 65 70 64 57 54 52 51 57 68 73 68 63 60 54 50 48 47 49 47
Dewpt            35 38 35 33 35 37 41 45 48 48 49 49 52 53 54 48 45 40 41 40 41
RH               76 61 33 25 34 47 61 77 89 72 51 43 57 70 81 80 83 74 79 71 79
Wind dir         SE  S SE SE SE SE  S  S SE SE SE  N  N  N  N  N  N  N  N NW NW
Wind spd          3  4  8  8  6  8  9  8  5  4  3  4  4  5  8 10 12 11 10  8  5
Clouds           FW FW FW FW SC SC B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2
PoP 12hr                      0           0          20          70          70
QPF 12hr                      0           0        0.01   0.24-0.32   0.34-0.49
Snow 12hr                    MM          MM          MM
Rain                                                  C  C  L  L  L  L  L  L  C
Rain shwrs                                      S  S


Date               Sat 12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            43    59      47    69      49    66      47    69
Temp          44   43 57 56 52   49 67 66 55   50 64 62 53   48 67 65
Dewpt         41   40 43 46 47   46 53 50 49   47 47 46 45   44 47 46
PWind dir          NW     N      SW    NW       N     N       N     N
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   B2 B2 B2 B2   B1 B1 SC SC   SC B1 B1 SC   SC SC SC
PoP 12hr           50    50      30    10       5    10      10     5
Rain           C    C
Rain shwrs             C  C  C    S

$$
TXZ254-132200-
Inland Willacy-
Including the city of Raymondville
355 AM CST Wed Dec 13 2017

Date             Wed 12/13/17            Thu 12/14/17            Fri 12/15/17
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      71          52          75    50 52 56          53
Temp             42 51 66 69 63 57 54 53 53 58 69 75 71 68 63 58 54 52 51 49 49
Dewpt            38 40 38 37 42 47 48 49 51 53 56 55 60 62 59 54 50 46 45 43 44
RH               86 66 36 31 46 69 80 86 93 83 63 50 68 81 87 86 86 80 80 80 83
Wind dir          N NW SE SE SE  S  S  S  S  S  S  S  E NE  N  N  N  N  N  N NW
Wind spd          3  3  3  5  6  9  8  6  5  6  8  2  6  5  9 14 17 17 16 13 11
Wind gust                                                        27 28 27 24
Clouds           FW FW FW FW SC SC B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2
PoP 12hr                      0           0          20          70          70
QPF 12hr                      0           0        0.01   0.33-0.43   0.40-0.49
Snow 12hr                    MM          MM          MM
Rain                                                  L  L  L  L  L  L  L  L  C
Rain shwrs                                      S  S


Date               Sat 12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            44    59      50    70      52    66      49    70
Temp          46   44 58 56 54   51 68 67 59   52 65 63 56   50 68 65
Dewpt         42   42 47 50 49   48 56 55 53   50 51 50 49   47 51 51
PWind dir          NW    NW       W    NW       N     N       N    NE
Wind char          GN    GN      LT    LT      LT    GN      LT    GN
Avg clouds    B2   B2 B2 B2 B2   B2 B1 B1 SC   B1 B1 B1 B1   B1 SC SC
PoP 12hr           50    30      30    10      10    20      10    10
Rain           C    C
Rain shwrs             C  C  C    S                S  S

$$
TXZ256-132200-
Coastal Willacy-
Including the city of Port Mansfield
355 AM CST Wed Dec 13 2017

Date             Wed 12/13/17            Thu 12/14/17            Fri 12/15/17
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      69    54 56 61          73          57    55 57 61
Temp             47 55 64 68 63 59 58 57 57 61 68 73 70 69 66 62 58 56 56 54 54
Dewpt            42 44 44 45 48 51 52 52 53 56 60 61 63 63 62 57 55 52 51 48 48
RH               83 66 48 43 58 75 80 83 86 84 76 66 78 81 87 84 90 86 83 80 80
Wind dir          N NW  S SE SE  S  S  S  S  S  S SE  E NE  N  N  N  N  N  N  N
Wind spd          4  4  2  5  9 11 11 10  9  8  8  3  6  5  9 18 20 21 20 18 14
Wind gust                          23 20                      28 33 35 33 28 25
Clouds           FW FW FW FW SC SC B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2
PoP 12hr                      0           0          20          70          70
QPF 12hr                      0           0        0.01   0.40-0.45   0.45-0.52
Snow 12hr                    MM          MM          MM
Rain                                                  L  L  L  L  L  L  L  L  C
Rain shwrs                                      S  S


Date               Sat 12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            47    61      52    69      55    66      53    69
Temp          51   47 60 58 57   53 67 67 64   55 64 64 59   53 68 65
Dewpt         45   44 51 53 52   50 57 57 56   53 54 54 51   50 54 53
PWind dir           N     N       W    NW       N     N       N    NE
Wind char          GN    GN      LT    LT      GN    GN      GN    GN
Avg clouds    B2   B2 B2 B2 B2   B2 B1 B1 SC   B1 B1 B1 B1   B1 SC SC
PoP 12hr           50    30      30    10      10    20      10    10
Rain           C    C
Rain shwrs             C  C  C    S        S    S  S  S

$$
TXZ248-132200-
Zapata-
Including the city of Zapata
355 AM CST Wed Dec 13 2017

Date             Wed 12/13/17            Thu 12/14/17            Fri 12/15/17
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      70          50          71          49          50
Temp             42 50 65 69 64 57 53 51 51 54 69 69 65 62 59 54 50 49 49 50 48
Dewpt            36 38 36 34 36 38 40 45 48 48 48 49 49 50 48 43 41 38 39 38 39
RH               79 63 34 27 35 49 61 80 89 80 47 49 56 65 67 66 71 66 68 63 71
Wind dir          S  S  S SE SE SE SE SE SE SE NE NE  N  N  N  N  N  N  N  N NW
Wind spd          6  8 10 10  8  9 10  9  6  6  1  8  5  6  8 11 11 10  9  8  5
Clouds           FW FW FW FW SC SC B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2
PoP 12hr                      0           0          20          60          50
QPF 12hr                      0           0        0.01   0.13-0.26   0.16-0.40
Snow 12hr                    MM          MM          MM
Rain                                                  C  C  L  L  C  C  C  C  C
Rain shwrs                                      S  S


Date               Sat 12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            43    58      46    69      48    65      46    68
Temp          45   43 57 56 50   48 67 65 55   48 63 61 52   47 65 65
Dewpt         40   40 42 45 46   45 51 49 48   45 45 44 43   43 45 44
PWind dir           W     N       S    NW      NE     N       N     N
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   B2 B2 B2 B2   B1 B1 SC B1   B1 B1 SC SC   SC SC SC
PoP 12hr           40    60      30    10       5     5      10     5
Rain           C    C
Rain shwrs             C  L  C    S

$$
TXZ249-132200-
Jim Hogg-
Including the city of Hebbronville
355 AM CST Wed Dec 13 2017

Date             Wed 12/13/17            Thu 12/14/17            Fri 12/15/17
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      70          50          71          48          50
Temp             42 50 64 69 63 56 52 51 50 54 69 70 66 63 58 53 49 48 48 50 48
Dewpt            33 36 34 32 34 36 38 44 48 49 50 51 50 50 48 43 40 37 38 37 39
RH               70 58 32 25 34 47 59 77 93 83 51 51 56 62 69 69 71 65 68 61 71
Wind dir         SE  S  S  S SE SE  S  S SE SE SE NE NE  N  N  N  N  N  N  N NW
Wind spd          4  5  8  8  5  6  8  8  5  5  2  4  5  6  9 12 12 11 10  9  5
Clouds           FW FW FW FW SC SC B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2
PoP 12hr                      0           0          20          60          60
QPF 12hr                      0           0        0.01   0.12-0.31   0.20-0.35
Snow 12hr                    MM          MM          MM
Rain                                                  C  C  L  L  L  L  C  C  C
Rain shwrs                                      S  S


Date               Sat 12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            43    58      47    69      47    64      46    67
Temp          44   43 57 56 51   49 67 65 54   48 63 60 52   47 65 64
Dewpt         39   39 41 45 46   46 52 48 48   44 45 44 44   43 45 45
PWind dir          NW     N      SW    NW       N     N       N    NE
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   B2 B2 B2 B2   B1 B1 SC SC   SC SC B1 SC   SC SC SC
PoP 12hr           40    60      40    10      10    10      10     5
Rain           C    C
Rain shwrs             C  L  C    S

$$
TXZ250-132200-
Brooks-
Including the city of Falfurrias
355 AM CST Wed Dec 13 2017

Date             Wed 12/13/17            Thu 12/14/17            Fri 12/15/17
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      70          50          73          49          50
Temp             40 50 65 69 63 57 53 51 51 56 68 73 67 64 59 54 50 48 49 50 49
Dewpt            34 36 35 33 35 38 41 46 49 50 51 51 51 53 50 44 41 38 39 38 39
RH               79 58 33 26 35 49 64 83 93 80 54 46 56 67 72 69 71 68 68 63 68
Wind dir          E  S  S  S SE SE  S  S  S  S SE  E NE  N  N  N  N  N  N  N NW
Wind spd          2  2  5  6  5  6  8  5  4  5  5  1  5  6  9 12 12 12 11  9  5
Clouds           FW FW FW FW SC SC B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2
PoP 12hr                      0           0          20          70          60
QPF 12hr                      0           0        0.01   0.16-0.36   0.23-0.36
Snow 12hr                    MM          MM          MM
Rain                                                  C  C  L  L  L  L  C  C  C
Rain shwrs                                      S  S


Date               Sat 12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            43    59      47    70      48    65      47    69
Temp          44   43 58 56 52   49 67 67 55   49 63 62 53   48 67 65
Dewpt         40   40 43 47 47   46 54 51 49   45 46 46 46   44 47 47
PWind dir          NW     N      SW    NW       N     N       N    NE
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   B2 B2 B2 B2   B1 B1 SC SC   SC B1 B1 SC   SC SC SC
PoP 12hr           30    50      40    10      10    10      10     5
Rain           C    C
Rain shwrs             C  C  C    S                S  S

$$
TXZ251-132200-
Kenedy-
Including the city of Sarita
355 AM CST Wed Dec 13 2017

Date             Wed 12/13/17            Thu 12/14/17            Fri 12/15/17
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      69    50 52 60          73    49 51 59    50 52 59
Temp             42 51 64 68 63 57 55 53 53 58 66 73 69 66 61 57 53 51 51 51 51
Dewpt            37 40 37 36 40 45 47 49 52 53 55 55 57 60 55 49 46 42 43 42 42
RH               82 66 37 31 43 64 74 86 96 83 68 53 66 81 81 75 77 71 74 71 71
Wind dir          N NW  S SE SE  S  S  S  S  S  S SE NE NE  N  N  N  N  N  N  N
Wind spd          4  3  3  5  6  9  9  8  6  6  8  1  6  8 11 14 16 16 14 11  9
Wind gust                       19 20 19                19 24 31 33 35 32 27 23
Clouds           FW FW FW FW SC SC B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2
PoP 12hr                      0           0          20          70          70
QPF 12hr                      0           0        0.01   0.17-0.45   0.26-0.46
Snow 12hr                    MM          MM          MM
Rain                                                  L  L  L  L  L  L  L  L  C
Rain shwrs                                      S  S


Date               Sat 12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            44    60      49    69      51    65      49    69
Temp          47   44 59 57 54   50 67 67 59   51 63 63 55   50 67 65
Dewpt         42   41 47 50 49   48 55 54 52   48 50 50 48   46 50 50
PWind dir          NW     N       W    NW       N     N       N     N
Wind char          LT    GN      LT    LT      LT    GN      LT    GN
Avg clouds    B2   B2 B2 B2 B2   B2 B1 B1 SC   SC B1 B1 B1   SC SC SC
PoP 12hr           30    50      40    10      20    20      10    10
Rain           C    C
Rain shwrs             C  C  C    S        S    S  S  S

$$



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