Point Forecast Matrices
Issued by NWS Houston/Galveston, TX

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Point Forecast Matrices
National Weather Service Houston/Galveston TX
1257 AM CDT Wed May 21 2025

TXZ196-220900-
College Station-Brazos TX
30.57N  96.37W Elev. 321 ft
1257 AM CDT Wed May 21 2025

Date           05/20/25      Wed 05/21/25            Thu 05/22/25            Fri
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                      63          93          69          96          70
Temp                   70 65 63 78 88 91 89 77 73 71 70 80 92 96 93 82 76 72 71
Dewpt                  59 57 56 58 54 53 60 58 68 70 70 73 71 67 66 69 69 70 70
RH                     68 75 78 50 31 28 38 52 84 97100 79 51 39 41 65 79 93 97
Wind dir               NE NE NE  E  E  E  E  E  S  S  S  S SE SE SE  S  S  S  E
Wind spd                6  5  5  8  6  5  4  5  5  4  3  4  5  6  8  8  5  5  4
Clouds                 SC SC SC SC FW FW FW SC SC SC B1 SC CL FW SC B1 SC B1 SC
PoP 12hr                      0           0           0          10          10
QPF 12hr                      0           0           0           0        0.11
Heat index                                                 99100 96
Max heat                                                  100   102


Date           05/23  Sat 05/24/25  Sun 05/25/25  Mon 05/26/25  Tue 05/27/25
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          94      74    96      76    95      72    86      66    83
Temp          90 90   77 75 94 90   78 77 93 90   76 72 82 81   70 66 81 79
Dewpt         69 69   71 72 70 69   73 75 72 70   73 72 71 69   67 64 64 65
PWind dir        SE       S     S       S     S       S     S       N    NE
Wind char        LT      GN    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    SC FW   FW SC SC FW   SC B1 B1 SC   B1 B2 B2 B1   B1 B1 B1 SC
PoP 12hr          0       0     5       0    20      50    50      30    30
Rain shwrs                                    S    C  C  C  C    C  C  S  C
Tstms                                         S    C  C  C  C    C  C  S  C

$$
TXZ213-220900-
Bush Intercontinental Airport-Inland Harris TX
29.96N  95.35W Elev. 97 ft
1257 AM CDT Wed May 21 2025

Date           05/20/25      Wed 05/21/25            Thu 05/22/25            Fri
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                      70          93          72          95          72
Temp                   76 72 70 80 89 92 89 80 76 74 73 83 92 95 91 81 77 74 73
Dewpt                  66 62 60 60 60 60 66 71 73 73 73 72 70 67 69 72 72 72 73
RH                     71 71 71 51 38 34 47 74 90 97100 70 49 40 49 74 85 93100
Wind dir                N NE NE  E  E SE SE SE  S  S  S SE SE SE SE SE  S  S  E
Wind spd                5  6  8  9  6  6  8  6  4  3  2  3  5  9 10  8  4  4  2
Clouds                 B1 B1 SC SC SC FW SC SC SC B1 B1 SC FW FW FW FW FW SC B1
PoP 12hr                     10           0           0          10          10
QPF 12hr                   0.01           0           0           0           0
Rain shwrs              S     S
Tstms                   S     S
Heat index                                                 97 99 95
Max heat                                                   98   101


Date           05/23  Sat 05/24/25  Sun 05/25/25  Mon 05/26/25  Tue 05/27/25
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          93      76    93      78    93      74    87      70    85
Temp          91 88   78 77 92 88   80 79 92 88   79 75 85 83   74 70 82 83
Dewpt         69 69   74 73 70 72   74 76 71 73   76 74 72 72   72 69 64 64
PWind dir        SE       S     S      SE     S       S     S      NE    NE
Wind char        LT      GN    GN      GN    GN      GN    GN      LT    GN
Avg clouds    SC FW   FW SC SC SC   SC B1 SC SC   B1 B2 B2 B1   B1 B2 B1 SC
PoP 12hr          0       0    10       5    20      40    50      40    40
Rain shwrs                                    S    S  C  C  C    C  C  C  C
Tstms                                         S    S  C  C  C    C  C  C  C

$$
TXZ438-220900-
Galveston-Galveston Island TX
29.27N  94.87W Elev. 6 ft
1257 AM CDT Wed May 21 2025

Date           05/20/25      Wed 05/21/25            Thu 05/22/25            Fri
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          85          78          86          77
Temp                   79 78 76 81 84 84 82 80 78 78 78 82 84 86 83 80 79 78 78
Dewpt                  76 71 70 70 71 73 74 76 76 75 75 75 75 75 75 75 75 75 74
RH                     91 79 82 69 65 70 77 88 94 91 91 79 74 70 77 85 88 91 88
Wind dir               NW NE NE  E  E  E SE SE  S  S  S SE SE SE SE SE SE  S SE
Wind spd                4 12 13 12 11 10  9  8  6  5  4  5  9 10 10  9  8  8  5
Clouds                 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC B1
PoP 12hr                     30          50           0          10          10
QPF 12hr                   0.02        0.38           0           0           0
Rain shwrs              C  C  C  C
Tstms                   C  C  C  C


Date           05/23  Sat 05/24/25  Sun 05/25/25  Mon 05/26/25  Tue 05/27/25
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          87      79    88      80    88      78    85      74    84
Temp          86 84   80 80 88 84   80 80 87 84   81 78 85 82   77 74 82 82
Dewpt         75 75   75 75 76 76   77 77 77 77   77 76 76 75   75 72 70 69
PWind dir        SE      SE     S      SE     S       S     S      SE    NE
Wind char        GN      GN    BZ      BZ    BZ      BZ    BZ      GN    GN
Avg clouds    SC SC   SC SC SC SC   SC SC SC SC   B1 B2 B1 B1   B2 B2 B1 SC
PoP 12hr          0       0     5       0    10      30    50      40    40
Rain shwrs                                            C  C  C    C  C  C  C
Tstms                                                 C  C  C    C  C  C  C

$$