Point Forecast Matrices
Issued by NWS Brownsville, TX

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Point Forecast Matrices
National Weather Service Brownsville TX
1240 AM CDT Mon Aug 18 2025

TXZ255-190900-
Brownsville-Cameron TX
25.91N  97.42W Elev. 22 ft
1240 AM CDT Mon Aug 18 2025

Date           08/17/25      Mon 08/18/25            Tue 08/19/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      79          96          77          96          78
Temp                   82 81 79 87 94 94 89 84 82 79 79 86 93 94 89 83 82 80 79
Dewpt                  77 77 77 76 74 75 75 77 77 76 76 76 73 73 74 76 77 76 76
RH                     85 88 94 70 53 54 64 80 85 91 91 72 52 51 61 80 85 88 91
Wind dir               SE SE  E SE  E  E  E  E SE  S  N NE NE  E  E  E SE SW NW
Wind spd                3  2  2  3  8 10  9  4  2  1  1  2  5 10  9  3  1  1  2
Clouds                 FW FW FW FW SC FW FW FW FW FW FW FW FW FW FW CL FW CL FW
PoP 12hr                      0          10           0          20          10
QPF 12hr                      0           0           0           0           0
Rain shwrs                                            S  S  S  S              C
Tstms                                                    S  S  S
Heat index             91       98104104 99 94 90       97102103 98 92
Max heat               94    90   104   105    96         102   103    96


Date           08/20  Thu 08/21/25  Fri 08/22/25  Sat 08/23/25  Sun 08/24/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          95      77    96      78    95      78    95      78    94
Temp          92 89   82 78 93 89   82 78 93 88   82 78 92 87   82 79 92 87
Dewpt         73 74   76 75 73 73   76 75 74 75   76 76 74 76   77 77 75 76
PWind dir        NE       S    NE      SE    SE      SE    SE      SE    SE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW   FW FW FW FW   FW FW FW FW   FW FW SC SC   SC FW SC SC
PoP 12hr         30      10    20      10    20      20    40      30    40
Rain shwrs     C  C             S             S    S  S  C  C    S  C  C  C
Tstms          S  C             S             S       S  S  C    S  S  C  C

$$
TXZ255-190900-
Harlingen-Cameron TX
26.23N  97.66W Elev. 36 ft
1240 AM CDT Mon Aug 18 2025

Date           08/17/25      Mon 08/18/25            Tue 08/19/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      75          97          74          98          73
Temp                   79 77 77 87 94 95 89 82 78 76 76 86 93 95 89 81 78 76 76
Dewpt                  77 76 75 77 73 74 74 77 77 76 75 77 72 72 73 76 76 75 74
RH                     94 97 94 72 51 51 61 85 97100 97 75 51 48 59 85 94 97 94
Wind dir               SE SE  E SE  E  E  E  E SE  S NE NE  E  E  E  E SE SW NW
Wind spd                5  2  1  3 10 12 12  5  2  1  1  1  6 10 10  3  1  1  2
Clouds                 FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW
PoP 12hr                      0          10           0          20          10
QPF 12hr                      0           0           0           0           0
Rain shwrs                                                  S  S              C
Tstms                                                       S  S
Heat index                      99104105 98             96101103 97
Max heat                          104   105    95         101   103    94


Date           08/20  Thu 08/21/25  Fri 08/22/25  Sat 08/23/25  Sun 08/24/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          96      74    97      74    96      74    95      75    95
Temp          92 89   78 76 93 89   79 76 92 88   78 77 91 87   78 76 92 87
Dewpt         72 73   76 74 72 73   76 74 73 74   76 75 74 74   76 74 73 75
PWind dir        NE      SE    NE      SE    SE      SE    SE      SE    SE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW SC   FW CL FW FW   FW FW FW SC   FW FW SC SC   SC FW SC SC
PoP 12hr         40      10    20      10    30      20    40      20    40
Rain shwrs     C  C             S             C    S  S  S  C    S  S  S  C
Tstms          S  C             S             C    S  S  S  C    S  S  S  C

$$
TXZ253-190900-
McAllen-Hidalgo TX
26.18N  98.24W Elev. 107 ft
1240 AM CDT Mon Aug 18 2025

Date           08/17/25      Mon 08/18/25            Tue 08/19/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      79         101          78         101          78
Temp                   83 81 79 88 96100 95 87 83 80 79 87 95 99 94 87 83 80 79
Dewpt                  76 77 77 76 71 69 71 73 76 76 75 75 71 68 69 72 74 75 75
RH                     80 88 94 68 45 37 46 63 80 88 88 68 46 37 44 61 74 85 88
Wind dir               SE SE SE SE  E  E  E SE SE SE  E SE  E  E  E  E SE  S  E
Wind spd                9  5  3  5  8 10 13 10  5  3  1  1  5  9 12  8  3  2  1
Clouds                 CL SC FW FW FW SC FW FW CL FW FW FW FW FW FW FW FW CL CL
PoP 12hr                      0           5           0          20          10
QPF 12hr                      0           0           0           0           0
Rain shwrs                                                  S  S              S
Tstms                                                       S  S
Heat index             91       98104107102 94 90       97103104100 93 90
Max heat               92    90   104   107    99         103   104    98


Date           08/20  Thu 08/21/25  Fri 08/22/25  Sat 08/23/25  Sun 08/24/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min         100      77   101      78    99      78    98      78    98
Temp          95 92   82 78 95 93   83 79 94 91   82 79 93 90   82 79 93 89
Dewpt         70 71   74 75 70 70   75 75 71 72   75 75 71 72   76 76 72 73
PWind dir        NE      SE     E      SE     E      SE     E      SE     E
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW   FW CL FW FW   FW FW FW SC   SC FW SC SC   SC FW FW SC
PoP 12hr         40      20    30      10    30      20    50      20    40
Rain shwrs     S  C    S        C             C    S  S     C    S        C
Tstms             C             C             C    S        C    S        C

$$
TXZ355-190900-
Bayview/Port Isabel-Cameron TX
26.16N  97.34W Elev. 19 ft
1240 AM CDT Mon Aug 18 2025

Date           08/17/25      Mon 08/18/25            Tue 08/19/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      78          92          76          92          77
Temp                   82 79 78 87 90 90 87 83 81 79 77 86 90 90 86 83 81 79 77
Dewpt                  79 77 77 79 78 78 78 79 78 77 76 78 77 77 77 78 78 77 76
RH                     91 94 97 77 68 68 75 88 91 94 97 77 66 66 75 85 91 94 97
Wind dir               SE  S SE  E  E  E  E SE SE  S NW NE NE  E  E  E SE SW NW
Wind spd                4  2  1  2 10 10  9  4  2  1  1  2  9 10  9  3  1  1  2
Clouds                 FW FW FW FW FW FW FW FW FW FW SC FW FW FW FW FW FW FW FW
PoP 12hr                      0           5           0          20          10
QPF 12hr                      0           0           0           0           0
Rain shwrs                                            S  S  S  S              C
Tstms                                                    S  S  S
Heat index             91      101105105100 94          97103103 98 92
Max heat               92    90   105   105    97         103   104    96


Date           08/20  Thu 08/21/25  Fri 08/22/25  Sat 08/23/25  Sun 08/24/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          92      76    93      77    92      77    92      77    92
Temp          89 86   81 77 90 87   81 78 90 86   81 77 89 86   82 78 90 86
Dewpt         77 76   77 75 76 76   77 76 77 77   77 76 78 77   78 77 78 78
PWind dir        NE      SE    NE      SE    SE      SE    SE      SE    SE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW   FW FW FW FW   FW FW FW FW   FW FW SC SC   SC FW SC SC
PoP 12hr         30      10    20      10    20      20    30      20    40
Rain shwrs     C  S             S             S       S  C  C    S  S  C  C
Tstms          S  S             S             S       S  C  C    S  S  C  C

$$
TXZ249-190900-
Hebbronville-Jim Hogg TX
27.35N  98.74W Elev. 663 ft
1240 AM CDT Mon Aug 18 2025

Date           08/17/25      Mon 08/18/25            Tue 08/19/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      75         101          75          99          74
Temp                   79 77 75 85 95 99 94 84 79 76 75 86 95 97 92 84 79 77 75
Dewpt                  77 77 75 77 70 67 72 76 77 76 75 75 69 65 70 74 74 74 73
RH                     94100100 77 45 36 49 77 94100100 70 43 35 49 72 85 90 94
Wind dir               SE SE SE SE SE  E  E SE SE SE  S SE  E  E  E  E SE  S SE
Wind spd                9  5  3  5  8 10 12 10  5  2  1  2  4  8 10  5  2  1  1
Clouds                 FW SC SC FW FW FW CL FW FW FW FW FW FW SC SC SC FW FW FW
PoP 12hr                      0           5           5          20          20
QPF 12hr                      0           0           0           0        0.01
Rain shwrs                                                  S  S  S  S  S  S  S
Tstms                                                       S  S  S  S  S  S
Heat index                      96102104102 92          95100101 98 90
Max heat                          102   104    98         100   101    96


Date           08/20  Thu 08/21/25  Fri 08/22/25  Sat 08/23/25  Sun 08/24/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          97      74    97      74    94      74    93      74    94
Temp          93 91   79 74 93 89   79 75 91 87   78 75 89 85   77 74 90 87
Dewpt         70 71   75 73 70 72   76 74 71 74   77 75 73 75   77 74 73 75
PWind dir         E      SE     E      SE     E      SE    NE      SE     E
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW SC   FW FW FW SC   FW FW SC SC   SC SC SC SC   SC FW SC SC
PoP 12hr         40      20    40      30    40      30    50      20    40
Rain shwrs     S  C    S  S     C    C  S     C    C  C     C    S        C
Tstms             C             C    C  S     C    C        C    S        C

$$
TXZ250-190900-
Falfurrias-Brooks TX
27.21N  98.12W Elev. 113 ft
1240 AM CDT Mon Aug 18 2025

Date           08/17/25      Mon 08/18/25            Tue 08/19/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      75          99          75          98          74
Temp                   79 77 76 87 96 98 91 83 79 77 75 86 95 96 91 83 79 77 75
Dewpt                  78 77 75 78 72 72 74 77 78 76 75 78 71 70 73 75 76 76 75
RH                     97100 97 75 46 43 58 82 97 97100 77 46 43 56 77 91 97100
Wind dir               SE  S SE SE SE  E  E SE SE  S  N  S  E  E  E SE SE SW NW
Wind spd                5  2  1  3  6  9 10  5  2  1  0  1  5  6  8  2  1  1  1
Clouds                 SC FW SC SC FW FW CL FW FW FW FW FW FW SC FW FW FW FW FW
PoP 12hr                      0           5           0          30          20
QPF 12hr                      0           0           0           0           0
Rain shwrs                                                  C  C  S  S  S  S  S
Tstms                                                       C  C  S  S  S  S
Heat index                     100105107101 92          97102103 99 90
Max heat                          105   107    97         102   103    96


Date           08/20  Thu 08/21/25  Fri 08/22/25  Sat 08/23/25  Sun 08/24/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          96      74    96      74    94      74    94      75    94
Temp          94 89   79 74 94 89   79 75 92 87   78 75 91 86   78 75 91 87
Dewpt         72 74   76 74 71 74   76 74 72 76   77 75 74 77   77 75 73 77
PWind dir        NE       S    NE      SE     E      SE    NE      SE     E
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW SC   FW CL FW SC   FW FW SC SC   SC SC SC SC   SC FW SC SC
PoP 12hr         50      20    40      20    40      30    50      20    40
Rain shwrs     S  C    S        C    S  S     C    S  C     C    S  S     C
Tstms             C             C    S        C    S  S     C    S        C

$$
TXZ253-190900-
Edinburg-Hidalgo TX
26.44N  98.13W Elev. 75 ft
1240 AM CDT Mon Aug 18 2025

Date           08/17/25      Mon 08/18/25            Tue 08/19/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      76         100          76          99          75
Temp                   80 78 77 88 95 98 90 83 80 78 76 86 94 97 91 84 80 78 76
Dewpt                  76 76 75 75 72 70 72 75 76 76 75 75 71 68 70 73 74 75 74
RH                     88 94 94 66 48 41 56 77 88 94 97 70 47 39 50 70 82 91 94
Wind dir               SE SE SE SE  E  E  E  E SE  S  N  E  E  E  E  E SE  S  N
Wind spd                5  3  1  4  8 11 13  8  3  1  0  1  4 10 11  4  1  1  1
Clouds                 CL FW FW FW FW FW FW CL CL FW SC FW FW FW FW FW FW CL FW
PoP 12hr                      0          10           0          30          10
QPF 12hr                      0           0           0           0           0
Rain shwrs                                                  C  C              S
Tstms                                                       C  C
Heat index                      97103105 98 91          96101102 96 90
Max heat                          103   105    95         101   102    94


Date           08/20  Thu 08/21/25  Fri 08/22/25  Sat 08/23/25  Sun 08/24/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          98      75    99      76    97      76    96      76    96
Temp          93 89   79 76 94 89   80 76 93 88   80 77 91 86   80 76 92 86
Dewpt         70 71   74 73 70 71   75 74 71 72   75 75 72 74   76 74 73 73
PWind dir        NE      SE     E      SE     E      SE     E      SE     E
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW   FW CL FW FW   FW FW FW SC   SC FW SC SC   SC FW SC SC
PoP 12hr         50      20    30      10    40      20    50      20    50
Rain shwrs     S  C    S        C             C    S  S     C    S  S     C
Tstms             C             C             C    S  S     C    S        C

$$