Fire Weather Point Forecast Matrices
Issued by NWS Corpus Christi, TX

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
774
FOUS54 KCRP 240527
PFWCRP

Fire Weather Point Forecast Matrices
National Weather Service Corpus Christi TX
1127 PM CST Sun Nov 23 2025

TXZ245-241000-
Aransas National Wildlife Refuge RAWS-Aransas County TX
28.30N  96.82W Elev. 20 ft
1127 PM CST Sun Nov 23 2025

Date           11/23/25      Mon 11/24/25            Tue 11/25/25            Wed
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

Min/Max                      68          84          66          85          55
Temp                   72 69 70 78 82 83 78 74 73 71 68 76 83 83 75 71 68 62 57
Dewpt                  71 69 70 76 75 75 73 73 72 71 68 73 71 69 68 67 64 60 56
Max/Min RH                  100          76         100          63          98
RH                     97100 99 93 78 76 87 95 95100100 92 67 63 78 87 89 95 98
Wind Dir               SE  S  S  S  S  S  S  S  S SW NW NW NW  E  E  E NE NE  N
Wind Spd                8  8  9 11 11 12 10  8  5  4  3  3  4  5  3  4  5  8 11
Wind Gust
Clouds                 B1 B1 B1 SC SC SC SC SC B1 SC SC SC FW FW FW SC SC B1 B1
Clouds(%)              B1 B1 B1 SC SC SC SC SC B1 SC SC SC FW FW FW SC SC B1 B1
PoP 12HR                      5          30          20          10          20
QPF 12HR                      0        0.04        0.02           0        0.05
Rain Shwrs                         IS    IS IS    IS IS IS             IS IS
Tstms                              IS             IS                   IS
LAL
Haines
Mixing Hgt                  600  2500  2700   800   500  3400  3700   700  1100
T Wind Dir                    S     S     S     S    SW    NW    NE    NE    NE
T Wind Spd                   18    20    20    17    11     8     6    10    16


Date           11/26/25  Thu 11/27/25  Fri 11/28/25  Sat 11/29/25  Sun 11/30/25
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

Max/Min          73      49    73      58    77      64    80      64    80
Temp          71 66 56   50 70 67 62   60 76 71 69   66 78 73 69   66 79 73
Dewpt         54 50 46   46 54 55 56   54 61 62 63   63 69 70 69   66 72 70
Min/Max RH       50      85    53      86    58      92    72     100    77
RH            56 56 69   85 57 67 81   81 59 74 81   92 74 90 99  100 80 90
Pwind Dir         N       N    NE       E    SE      SE    SE       S     S
Wind Char       <15     <15   <15     <15   <15     <15   <15     <15   <15
Avg Clouds    SC SC FW   FW FW FW FW   SC B1 B2 B2   B2 B2 B2 B2   B2 B2 B2
PoP 12HR         10       0     0       0    10      30    50      40    40
Rain Shwrs                                      IS   SC SC SC SC   SC SC SC
Tstms                                                IS IS

$$

TXZ231-241000-
George West RAWS-Live Oak County TX
28.37N  98.12W Elev. 215 ft
1127 PM CST Sun Nov 23 2025

Date           11/23/25      Mon 11/24/25            Tue 11/25/25            Wed
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

Min/Max                      67          90          61          88          55
Temp                   72 68 69 77 85 89 81 73 69 65 63 71 83 86 77 70 65 61 56
Dewpt                  71 68 69 72 69 67 70 69 67 64 62 66 64 56 57 59 58 56 53
Max/Min RH                  100          49         100          36          90
RH                     95100100 86 59 49 68 87 93 97 97 86 54 36 49 68 78 84 90
Wind Dir               SE SE  S  S  S SW  N NE  N NW NW NW  N NE NE  E NE NE NE
Wind Spd                8  9  6 11 12  8  4  2  2  2  2  2  4  4  4  3  4  8 11
Wind Gust
Clouds                 B1 B1 B1 B1 B1 B2 B1 FW SC FW SC SC FW FW FW SC SC SC B2
Clouds(%)              B1 B1 B1 B1 B1 B2 B1 FW SC FW SC SC FW FW FW SC SC SC B2
PoP 12HR                     10          10           5           5          20
QPF 12HR                      0           0           0           0        0.04
Rain Shwrs                                                       IS IS IS IS
Tstms                                                               IS IS
LAL
Haines
Mixing Hgt                  600  4100  4800   700   500  3400  5000   600   800
T Wind Dir                    S     S    SW    SE     N     N    NE    NE    NE
T Wind Spd                   16    20    11     5     6     6     6    11    17


Date           11/26/25  Thu 11/27/25  Fri 11/28/25  Sat 11/29/25  Sun 11/30/25
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

Max/Min          74      44    75      53    79      62    85      63    86
Temp          71 65 53   45 70 69 58   55 76 73 67   64 80 77 69   65 81 76
Dewpt         47 42 38   37 46 50 53   51 57 61 61   61 66 67 67   65 67 65
Min/Max RH       35      73    37      86    48      90    53     100    51
RH            43 43 57   73 42 50 83   86 52 65 81   90 62 71 93  100 64 69
Pwind Dir        NE      NE    NE       E    SE      SE    SE      SE    SE
Wind Char       <15     <15   <15     <15   <15     <15   <15     <15   <15
Avg Clouds    B1 SC FW   FW FW FW SC   B1 B2 B2 OV   B2 B2 B1 B1   B2 B2 B2
PoP 12HR          5       0     0       0     5      20    30      20    20
Rain Shwrs                                           IS IS SC IS   IS IS IS
Tstms                                                IS

$$

TXZ247-241000-
Matagorda Island RAWS-Calhoun County TX
28.12N  96.80W Elev. 36 ft
1127 PM CST Sun Nov 23 2025

Date           11/23/25      Mon 11/24/25            Tue 11/25/25            Wed
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

Min/Max                      73          82          72          82          61
Temp                   75 73 74 79 80 81 77 75 76 75 73 77 80 80 75 74 72 67 62
Dewpt                  72 71 72 75 75 74 73 73 73 72 72 73 72 71 70 68 67 63 61
Max/Min RH                   95          78         100          73          95
RH                     89 93 92 87 84 78 87 92 91 92 95 87 77 73 83 82 84 87 95
Wind Dir               SE  S  S  S  S  S  S  S  S SW  W  W NW  E  E  E NE NE  N
Wind Spd               10 12 11 12 11 12 12 12 10  8  5  4  4  5  5  6  8 10 13
Wind Gust
Clouds                 B1 B1 B1 B1 SC SC SC FW B1 SC B1 FW FW FW FW SC B1 B1 B1
Clouds(%)              B1 B1 B1 B1 SC SC SC FW B1 SC B1 FW FW FW FW SC B1 B1 B1
PoP 12HR                      5          20          20          10          30
QPF 12HR                      0           0        0.04           0        0.05
Rain Shwrs                               IS IS    IS IS IS             SC SC
Tstms                                             IS                   IS
LAL
Haines
Mixing Hgt                  800  1700  2000   900   900  2400  2200  1400  1700
T Wind Dir                    S     S     S     S    SW     W    NE    NE    NE
T Wind Spd                   21    23    21    23    14     9     8    11    19


Date           11/26/25  Thu 11/27/25  Fri 11/28/25  Sat 11/29/25  Sun 11/30/25
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

Max/Min          72      59    73      64    77      69    79      69    79
Temp          70 68 62   59 70 68 67   66 75 72 71   71 78 73 72   71 77 73
Dewpt         57 53 51   54 57 57 57   58 61 62 63   66 69 69 70   70 72 70
Min/Max RH       55      82    58      78    60      87    73     100    80
RH            64 59 66   82 63 68 70   77 63 70 76   86 74 86 92   99 84 90
Pwind Dir        NE      NE    NE       E    SE      SE    SE       S     S
Wind Char       <15     <15   <15     <15   <15     <15   <15     <15   <15
Avg Clouds    B1 SC FW   FW FW FW SC   SC B1 B2 B2   B2 B2 B2 B2   B2 B2 B2
PoP 12HR         10       0     0       0    10      30    50      40    40
Rain Shwrs                                      IS   SC SC SC SC   SC SC SC
Tstms                                                IS IS

$$

TXZ234-241000-
Victoria RAWS-Victoria County TX
28.85N  96.92W Elev. 23 ft
1127 PM CST Sun Nov 23 2025

Date           11/23/25      Mon 11/24/25            Tue 11/25/25            Wed
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

Min/Max                      68          85          65          84          54
Temp                   71 69 70 76 83 84 79 73 71 68 66 72 81 83 75 67 63 60 55
Dewpt                  71 69 69 74 74 72 73 72 70 68 66 70 66 61 61 59 58 55 52
Max/Min RH                  100          67         100          48          90
RH                    100100 97 94 74 67 82 97 97100100 93 60 48 62 75 84 84 90
Wind Dir               SE SE SE  S  S  S  S  S  W NW  N  N  N  N NE NE NE  N  N
Wind Spd                6  8  8 11 13 13  9  6  4  3  2  4  4  4  4  4  6  9 11
Wind Gust
Clouds                 B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 SC SC FW FW FW FW SC SC B1
Clouds(%)              B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 SC SC FW FW FW FW SC SC B1
PoP 12HR                      5          30          30          10          10
QPF 12HR                      0        0.08        0.35           0           0
Rain Shwrs                      SC SC IS IS SC SC
Tstms                           IS SC IS IS SC SC
LAL
Haines
Mixing Hgt                  400  2800  3200   600   400  3600  4700   400   400
T Wind Dir                   SE     S     S     S    NW     N     N    NE    NE
T Wind Spd                   13    17    18    10     6     6     6    12    16


Date           11/26/25  Thu 11/27/25  Fri 11/28/25  Sat 11/29/25  Sun 11/30/25
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

Max/Min          70      43    72      51    76      63    79      64    78
Temp          68 62 51   44 68 65 55   53 74 71 66   65 77 73 68   66 76 72
Dewpt         49 45 40   38 46 49 49   47 58 61 59   61 68 70 67   65 70 69
Min/Max RH       42      79    41      83    56      93    71     100    74
RH            51 54 66   79 45 56 80   80 57 71 78   87 74 90 97   97 82 90
Pwind Dir         N       N    NE       E    SE      SE    SE       S     S
Wind Char       <15     <15   <15     <15   <15     <15   <15     <15   <15
Avg Clouds    SC SC FW   FW FW FW FW   SC B1 B2 B2   B2 B2 B2 B2   B2 B2 B2
PoP 12HR          5       0     0       0    10      20    50      40    50
Rain Shwrs                                           IS SC SC SC   SC SC SC
Tstms                                                IS IS IS IS

$$

TXZ241-241000-
Alice International Airport-Jim Wells County TX
27.74N  98.03W Elev. 177 ft
1127 PM CST Sun Nov 23 2025

Date           11/23/25      Mon 11/24/25            Tue 11/25/25            Wed
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

Min/Max                      68          90          64          87          58
Temp                   72 69 71 76 85 89 83 75 72 69 66 73 82 85 78 72 69 64 60
Dewpt                  71 69 69 72 69 67 70 69 67 67 65 69 68 63 65 66 65 61 56
Max/Min RH                   99          49         100          48          92
RH                     97 99 95 87 59 49 64 82 84 93 97 87 62 48 63 81 89 90 89
Wind Dir               SE SE  S  S  S  S  E SE SW SW NW NW  N NE  E  E NE NE  N
Wind Spd               10 11 11 13 13  9  6  4  4  4  3  4  4  4  5  4  6  9 12
Wind Gust
Clouds                 B2 B1 B1 SC SC SC B2 SC SC SC FW FW FW FW FW SC B1 B1 B2
Clouds(%)              B2 B1 B1 SC SC SC B2 SC SC SC FW FW FW FW FW SC B1 B1 B2
PoP 12HR                      5           5          10           5          30
QPF 12HR                      0           0           0           0        0.08
Rain Shwrs                                                       IS IS SC SC IS
Tstms                                                            IS IS SC IS
LAL
Haines
Mixing Hgt                  600  3900  5200   600   500  3300  4500   600   800
T Wind Dir                    S     S     S     S    SW     N    NE     E    NE
T Wind Spd                   16    21    14     9     6     6     8     8    14


Date           11/26/25  Thu 11/27/25  Fri 11/28/25  Sat 11/29/25  Sun 11/30/25
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

Max/Min          73      48    75      56    78      64    83      65    84
Temp          70 66 56   49 71 69 60   58 76 73 68   66 80 77 70   67 80 76
Dewpt         50 48 42   41 51 55 56   54 59 62 62   62 66 67 67   65 68 67
Min/Max RH       41      73    45      92    52      87    57      99    56
RH            48 52 60   73 49 62 89   89 56 69 80   87 62 71 90   95 66 73
Pwind Dir        NE      NE    NE       E    SE      SE    SE      SE     S
Wind Char       <15     <15   <15     <15   <15     <15   <15     <15   <15
Avg Clouds    B1 B1 FW   FW FW FW SC   B1 B2 B2 B2   B2 B2 B1 B1   B2 B2 B2
PoP 12HR         20       0     0       0    10      10    20      20    20
Rain Shwrs    IS                                           IS IS   IS    IS

$$

TXZ229-241000-
La Salle County Airport-La Salle County TX
28.46N  99.22W Elev. 476 ft
1127 PM CST Sun Nov 23 2025

Date           11/23/25      Mon 11/24/25            Tue 11/25/25            Wed
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

Min/Max                      69          83          57          85          58
Temp                   73 69 70 74 79 83 79 70 65 61 58 66 81 85 78 69 65 61 58
Dewpt                  68 68 67 68 67 64 62 60 59 56 54 54 50 45 44 47 50 51 50
Max/Min RH                   97          53          90          25          75
RH                     84 97 90 82 67 53 56 71 81 84 87 65 34 25 30 45 58 70 75
Wind Dir               SE SE SE  S SW NW  N  N NE  N  N NW  N  N NE NE NE NE NE
Wind Spd               10  9  8  8  6  5  3  4  2  3  4  4  3  3  3  4  5  9 11
Wind Gust
Clouds                 SC B2 B1 B1 B2 SC FW FW FW FW FW FW CL CL FW FW FW SC SC
Clouds(%)              SC B2 B1 B1 B2 SC FW FW FW FW FW FW CL CL FW FW FW SC SC
PoP 12HR                     10          10           0           0          20
QPF 12HR                      0           0           0           0           0
Rain Shwrs                      IS                                     IS IS
LAL
Haines
Mixing Hgt                  900  2700  3200   500   400  3100  5600   500   500
T Wind Dir                   SE     S    NW     N     N     N    NE    NE    NE
T Wind Spd                   14    12     8     8     6     6     6    11    16


Date           11/26/25  Thu 11/27/25  Fri 11/28/25  Sat 11/29/25  Sun 11/30/25
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

Max/Min          73      47    73      56    76      64    82      61    82
Temp          70 67 56   48 68 70 61   58 72 74 68   65 76 78 69   63 77 77
Dewpt         41 36 36   35 40 44 51   52 56 56 61   61 62 60 63   63 61 58
Min/Max RH       29      61    33      83    50      90    47     100    46
RH            35 32 47   60 36 39 70   80 57 53 78   87 62 54 81  100 58 52
Pwind Dir        NE      NE     E       E    SE      SE     S      SE    SE
Wind Char       <15     <15   <15     <15   <15     <15   <15     <15   <15
Avg Clouds    SC FW FW   FW FW FW SC   B1 B2 B2 B2   B2 B2 B1 SC   B2 B2 B1
PoP 12HR          5       0     0       0    10      20    20      10    10
Rain Shwrs                                           IS IS
Tstms                                                IS

$$

TXZ442-241000-
Padre RAWS-Kleberg TX
27.44N  97.29W Elev. 6 ft
1127 PM CST Sun Nov 23 2025

Date           11/23/25      Mon 11/24/25            Tue 11/25/25            Wed
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

Min/Max                      75          82          72          80          66
Temp                   77 76 76 79 81 82 79 77 76 75 73 77 80 80 77 76 75 72 67
Dewpt                  72 71 71 73 73 73 72 71 71 71 70 72 71 71 71 70 69 67 63
Max/Min RH                   88          74          97          74          87
RH                     85 85 85 82 77 74 79 82 85 87 90 85 74 74 82 82 82 84 87
Wind Dir               SE  S  S  S  S  S  S  S  S  S SW  W  N  E  E  E  E NE NE
Wind Spd               14 16 16 16 14 16 16 16 11  9  6  5  6  8  8  8  8 11 14
Wind Gust
Clouds                 B2 B1 B1 SC SC SC SC SC SC SC SC FW FW FW FW SC SC B1 B2
Clouds(%)              B2 B1 B1 SC SC SC SC SC SC SC SC FW FW FW FW SC SC B1 B2
PoP 12HR                      5          10           5           5          40
QPF 12HR                      0           0           0           0        0.06
Rain Shwrs                                                       IS IS SC SC SC
Tstms                                                               IS SC IS
LAL
Haines
Mixing Hgt                  700  2400  2300   900   600  2100  2000  1200  1900
T Wind Dir                    S     S     S     S    SW     W    NE     E    NE
T Wind Spd                   23    24    25    21    13     9    10    11    16


Date           11/26/25  Thu 11/27/25  Fri 11/28/25  Sat 11/29/25  Sun 11/30/25
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

Max/Min          72      62    72      67    75      71    78      71    78
Temp          70 69 66   62 72 70 69   69 75 73 74   72 78 76 74   72 78 76
Dewpt         59 56 55   55 59 59 58   59 62 63 64   66 69 70 70   70 72 70
Min/Max RH       61      78    64      73    64      81    74      93    79
RH            68 63 68   78 64 68 68   70 64 71 71   81 74 82 87   93 82 82
Pwind Dir        NE      NE    NE       E    SE      SE     S       S     S
Wind Char       15>     <15   <15     <15   <15     15>   15>     <15   <15
Avg Clouds    B2 B1 SC   SC FW FW SC   B1 B1 B2 B2   B2 B2 B2 B1   B2 B1 B1
PoP 12HR         30       0     0       5    10      30    40      30    30
Rain Shwrs    SC                                IS   SC SC SC SC   SC SC SC

$$

Below is a weather element key for this product

Day 1 through 3...
Max/Min Temp or Min/Max Temp (F)....Maximum/Minimum Air Temperature
Temp (F)............................Air Temperature
Dewpt (F)...........................Dew Point Temperature
Min/Max RH or Max/Min RH (%)........Maximum/Minimum Humidity
RH (%)..............................Relative Humidity
Wind Dir (8 Point Compass)..........20 FT. Wind Direction
Wind Spd (MPH)......................20 FT. Wind Speed
Wind Gust (MPH).....................20 FT. Wind Gust
Wind Chill..........................Wind Chill Temperature
Heat Indx...........................Heat Index
Clouds (CAT)........................Cloud Cover Category
     EXAMPLE: CL = Clear; FW = Few; SC = Scattered;
              B1 = Mostly Cloudy; B2 = Considerable Clouds; OV = Overcast
Clouds (%)..........................Cloud Cover as a percentage
PoP 12HR (%)........................Probability for accumulating precipitation
QPF 12HR (IN).......................Liquid Equivalent Precipitation Amount
Weather...
     Type...
       Rain...........Rain
       Rain Shwrs.....Rain Showers
       Tstms..........Thunderstorms
       Drizzle........Drizzle
       Snow...........Snow
       SnowShwrs......Snow Showers
       Sleet..........Sleet
       Flurries.......Flurries
       Frzg Rain......Freezing Rain
       Frzg Drzl......Freezing Drizzle
     Coverage...
       IS.............Isolated
       SC.............Scattered
       NM.............Numerous
       O..............Occasional
       S..............Slight Chance
       C..............Chance
       L..............Likely
       WD.............Widespread
       D..............Definite
       AR.............Areas
       PA.............Patchy
Obvis...............................Obstruction to Visibility
     TYPE...
       F..............Fog
       PF.............Patchy Fog
       F+.............Dense Fog
       H..............Haze
       BS.............Blowing Snow
       K..............Smoke
       BD.............Blowing Dust
       AF.............Volcanic Ashfall
LAL (CAT)...........................Lightning Activity Level
Haines (CAT)........................Haines Index
Free Wind Dir (8 Point Compass).....Free Wind Level Direction
Free Wind Spd (MPH).................Free Wind Level Speed
Mixing Hgt (Feet AGL)...............Mixing Height
T Wind Dir (8 Point Compass)........Transport Wind Direction
T Wind Spd (MPH)....................Transport Wind Speed
Smoke Disp (CAT(KT-FT)).............Smoke Dispersion Category
     Example: PR = Poor; FR = Fair; GD = Good; VG = Very Good; EX = Excellent
Watch/Warning/Advisory...
     Example: W = Warning; Y = Advisory; A = Watch
     In effect for the indicated hour

Day 4 Through 7...
Max/Min Temp or Min/Max Temp (F)....Maximum/Minimum Air Temperature
Temp (F)............................Air Temperature
Dewpt (F)...........................Dew Point Temperature
RH (%)..............................Relative Humidity
Wind Spd (MPH)......................20 FT. Wind Speed
     Example: <15 = less than 15 MPH; 15> = 15 MPH or greater
Ave Clouds (CAT)....................Average Cloud Cover Category
PoP 12HR (%)........................Probability for Accumulating Precipitation
Weather...
     See day 1 through 3 weather descriptions