Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN

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Point Forecast Matrices
National Weather Service Morristown TN
1132 PM EST Thu Feb 22 2018

TNZ017-230900-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
1132 PM EST Thu Feb 22 2018

Date           02/22/18      Fri 02/23/18            Sat 02/24/18            Sun
EST 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                      54          76          54          71          55
Temp                   59 56 54 64 74 76 69 64 60 58 55 60 67 70 66 62 59 58 56
Dewpt                  57 56 54 58 58 57 55 54 54 54 54 55 56 56 56 57 57 56 55
RH                     93100100 81 57 52 61 70 81 86 96 84 68 61 70 84 93 93 96
Wind Dir                S SE  S  S SW SW  S  S  S  S  S  S SW SW  S  S  S  S  S
Wind Spd                2  3  2  3  8  8  3  5  4  4  4  6 10  9  8  8 10 11 12
Clouds                 B1 B1 B1 SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 OV OV OV
PoP 12hr                     10          10          30          30          60
QPF 12hr                      0           0        0.13        0.11        0.21
Rain shwrs                                S  S  C  C  C  C  C  C  C  C  L  L  D
Tstms                                                             S  S  S  S
Obvis                     PF


Date           02/25  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18  Thu 03/01/18
EST 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          64      46    60      35    60      42    59      46    60
Temp          62 58   51 47 57 52   42 37 54 54   47 43 55 55   50 47 57 54
Dewpt         50 47   47 44 38 33   31 29 32 37   36 37 43 46   45 45 47 44
PWind Dir        SW       W    NW      NE     S       S     S       S     W
Wind Char        GN      LT    LT      LT    LT      LT    LT      LT    GN
Avg Clouds    OV B2   B1 B2 B1 B1   FW FW FW FW   B1 B1 B2 OV   OV OV B2 B2
PoP 12hr         80      30    20      10     5      10    60      40    40
Rain shwrs     D  C    C  C  S  S                        L  L    C  C  C  C

$$

TNZ071-230900-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
1132 PM EST Thu Feb 22 2018

Date           02/22/18      Fri 02/23/18            Sat 02/24/18            Sun
EST 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                      58          77          57          73          57
Temp                   62 60 58 68 76 77 71 66 63 60 58 63 69 72 68 64 61 60 58
Dewpt                  59 58 58 61 60 59 58 57 57 57 57 57 58 59 59 60 60 59 57
RH                     90 93100 78 58 54 63 73 81 90 96 81 68 64 73 87 97 96 96
Wind Dir               SW  S  S SW SW SW SW  S  S  S  S  S SW SW  S  S  S SW SW
Wind Spd                5  4  4  8 11 10  4  4  5  5  4  8 11 12 10  9 12 13 13
Clouds                 B1 B1 B1 SC SC SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 OV OV OV
PoP 12hr                     10          10          30          40          70
QPF 12hr                      0           0        0.25        0.10        0.35
Rain shwrs                                S  S  C  C  C  C  C  C  L  L  L  L  D
Tstms                                                             S  S  S  S
Obvis                     PF


Date           02/25  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18  Thu 03/01/18
EST 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          66      48    62      40    63      45    60      50    63
Temp          64 60   53 49 59 55   46 41 58 57   50 46 57 57   53 51 61 57
Dewpt         51 48   48 45 40 37   36 34 39 41   41 41 47 49   50 48 49 45
PWind Dir         W       W     N      NE     W       S     S      SW     W
Wind Char        GN      LT    LT      LT    LT      LT    LT      LT    GN
Avg Clouds    OV B2   B1 B2 B1 B1   FW FW FW FW   B1 B2 OV OV   OV OV OV B2
PoP 12hr         80      30    20       5    10      30    60      50    40
Rain shwrs     D  C    C  C  S  S                  C  C  L  L    C  C  C  C

$$

TNZ036-230900-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
1132 PM EST Thu Feb 22 2018

Date           02/22/18      Fri 02/23/18            Sat 02/24/18            Sun
EST 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                      57          76          57          73          57
Temp                   61 60 58 68 75 76 70 65 62 60 58 63 69 72 68 64 61 60 57
Dewpt                  59 60 58 61 61 59 58 57 57 57 57 57 58 59 59 60 60 59 56
RH                     93100100 78 62 56 66 75 84 90 96 81 68 64 73 87 97 96 96
Wind Dir               SW SW SW SW SW SW SW SW  S  S  S  S SW  S  S  S  S SW SW
Wind Spd                4  3  3  5  9  8  4  5  6  5  4  6 11 12  9  8 12 12 12
Clouds                 B1 B2 B2 B1 B1 SC B1 B1 B2 B2 B2 B2 B2 OV OV OV OV OV B2
PoP 12hr                     10          10          30          40          80
QPF 12hr                      0           0        0.27        0.13        0.46
Rain shwrs                                S  S  C  C  C  C  C  C  L  L  D  D  L
Tstms                                                             S  S  S  S
Obvis                     PF


Date           02/25  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18  Thu 03/01/18
EST 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          65      48    62      39    64      45    60      49    62
Temp          63 60   53 49 59 54   45 41 58 58   50 46 57 57   52 50 60 56
Dewpt         48 45   45 45 39 37   36 34 38 41   42 42 47 50   50 48 48 45
PWind Dir        SW      NW     N      NE     S      SW     S      SW    SW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    GN
Avg Clouds    B2 B1   B1 B2 B1 B1   FW FW FW FW   B1 B2 OV OV   OV OV B2 B2
PoP 12hr         70      30    20       5    10      30    70      50    40
Rain shwrs     L  C    C  C  S  S                  C  C  L  L    C  C  C  C

$$

TNZ099-230900-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
1132 PM EST Thu Feb 22 2018

Date           02/22/18      Fri 02/23/18            Sat 02/24/18            Sun
EST 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                      57          78          59          75          59
Temp                   62 60 58 69 76 78 72 67 64 62 60 65 71 74 70 66 63 62 59
Dewpt                  59 60 58 61 60 59 59 58 58 58 58 58 59 60 60 61 61 59 57
RH                     90100100 76 58 52 64 73 81 87 93 78 66 62 71 84 93 90 93
Wind Dir                S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
Wind Spd                4  3  4  5  9  8  4  6  5  6  5  9 10 11  9 10 11 12 11
Clouds                 B1 B1 B1 B1 SC B1 B1 B1 B1 B2 B2 B2 B2 OV OV OV OV OV OV
PoP 12hr                     10          10          30          40          80
QPF 12hr                      0           0        0.45        0.06        0.46
Rain shwrs                                S  S  C  C  C  C  C  C  L  L  D  D  L
Tstms                                                       S  S  S  S  S  S
Obvis                     PF


Date           02/25  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18  Thu 03/01/18
EST 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          66      49    64      42    65      48    61      52    63
Temp          64 61   54 50 61 57   48 43 60 60   53 49 58 58   55 53 61 58
Dewpt         52 49   49 46 42 40   38 35 41 41   44 44 47 52   52 50 49 46
PWind Dir         N       W     N       N    SE       S     S       S     W
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    GN
Avg Clouds    OV B1   B2 B2 B1 B1   FW FW FW SC   B1 B2 OV OV   OV OV B2 B2
PoP 12hr         70      40    20       5    10      40    70      60    40
Rain shwrs     L  L    C  C  S  S                  C  C  L  L    L  L  C  C

$$

NCZ060-230900-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
1132 PM EST Thu Feb 22 2018

Date           02/22/18      Fri 02/23/18            Sat 02/24/18            Sun
EST 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                      54          74          57          71          58
Temp                   59 57 54 66 72 74 69 64 62 60 58 62 68 70 67 64 62 60 58
Dewpt                  58 57 54 60 59 57 56 55 55 55 55 56 57 58 58 59 59 58 57
RH                     96100100 81 64 55 63 73 78 84 90 81 68 66 73 84 90 93 96
Max/Min RH                  100          55          90          63          96
Wind Dir               SE SE SE  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
Wind Dir Deg           14 15 15 17 18 18 17 16 16 16 17 17 18 18 16 18 18 18 19
Wind Spd                5  3  3  4  6  6  4  6  6  6  6  8 10 11 10 11 10 12 12
Clouds                 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 OV OV OV OV OV
Clouds (%)             57 64 63 58 53 51 53 59 63 67 73 75 78 81 89 89100100 93
Vsby                    0  0  0  0  0
PoP 12hr                     10          10          30          40          70
QPF 12hr                      0           0        0.18        0.04        0.20
Rain shwrs                                S  S  C  C  C  C  C  C  L  L  L  L  D
Tstms                                                       S  S  S  S  S  S
Obvis                     PF
Haines                                    4                       3
LAL                     1     1     1     1     1     1     2     2     2     2
Max Mix Hgt                            6500                    5100
AGL Mix Hgt                            4800                    3400
Max Vent Rt                           72000                   73500
T Wind Dir                                S                       S
T Wind Spd                               14                      21
ADI                                      63                      64
Max LVORI                                 4                       4
Stability               E     F     C     B     E     E     C     C     D     D
Ceiling              2400  2400  4000  NONE  4700  2400  3200  4700  3200  2400
Sta Pres            28.30 28.30 28.27 28.19 28.14 28.06 28.04 27.95 27.87 27.84


Date           02/25  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18  Thu 03/01/18
EST 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          64      48    63      39    63      44    59      48    62
Temp          63 59   52 49 59 55   46 40 57 57   49 45 56 56   51 49 59 56
Dewpt         52 49   49 46 42 39   35 32 37 38   40 41 45 47   49 48 48 45
PWind Dir         S       W     N      NE    SE      SE    SE       S     W
Wind Char        GN      LT    LT      LT    LT      LT    LT      LT    GN
Avg Clouds    OV B2   B2 B2 B1 B1   FW FW FW SC   B1 B2 OV OV   OV OV OV B2
PoP 12hr         80      40    30      10    10      30    70      60    50
Rain shwrs     D  L    C  C  C  C                  C  C  L  L    L  L  C  C

This is an experimental product for planning and review purposes only, and is
not to be substituted for an official fire weather spot forecast

$$




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