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

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Point Forecast Matrices
National Weather Service Morristown TN
234 PM EST Sat Dec 16 2017

TNZ017-170900-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
234 PM EST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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                      28          46          37          57          39
Temp          46 39 35 33 31 29 34 42 45 42 41 39 38 38 44 53 56 50 46 44 42 40
Dewpt         26 25 23 23 22 22 26 28 31 36 37 38 38 38 42 45 44 44 43 41 41 39
RH            45 57 61 66 69 75 72 57 58 79 85 96100100 93 74 64 80 89 89 96 96
Wind Dir      SW SW  S SE SE SE  N SW  S  E SW SW SW  S  S  S SW SW SW SW SW SW
Wind Spd       9  3  2  1  1  2  2  3  3  2  4  5  3  3  4  4  5  5  6  6  4  3
Clouds        FW CL FW FW B1 B2 OV OV OV OV OV B2 B2 B2 B2 B1 SC SC B1 SC B1 B1
PoP 12hr                      0          40          30          10          20
QPF 12hr                      0        0.02        0.02           0        0.01
Rain shwrs                          C  C  C  S  S  S                    S  S


Date           12/19  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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          58      40    52      35    54      36    55      36    49
Temp          54 51   45 41 50 45   39 36 50 47   41 37 51 47   41 37 46 43
Dewpt         46 46   44 40 39 37   35 34 40 38   36 35 43 41   37 37 40 36
PWind Dir        SW       W    NE       E    SE      SE    SW       W    NW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 B2   B2 B2 B1 B2   B2 B1 SC SC   SC SC B1 B2   OV OV OV OV
PoP 12hr         20      20    40      40    10      10    50      40    60
Rain shwrs        S    S  S  C  C    C  S                C  C    C  C  L  L

$$

TNZ071-170900-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
234 PM EST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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                      31          45          40          59          45
Temp          48 42 38 36 34 32 36 42 45 43 42 41 41 41 47 55 58 53 50 49 47 46
Dewpt         28 27 26 25 24 25 28 31 35 39 40 40 41 41 45 48 49 48 47 45 44 43
RH            46 55 62 64 66 75 72 65 68 86 93 96100100 93 77 72 83 89 86 89 89
Wind Dir      SW SW SW SW  E  E NE  W  S  W SW SW  W SE  W  W SW SW SW SW SW SW
Wind Spd       8  4  3  1  2  3  2  2  3  3  2  3  1  1  1  2  4  6  9  9  4  3
Clouds        CL FW FW SC B1 B2 OV OV OV OV B2 B2 B2 B2 B2 B1 SC SC SC SC B1 B1
PoP 12hr                      0          60          40          10          20
QPF 12hr                      0        0.07        0.07           0        0.01
Rain shwrs                          L  L  C  C  S  S                    S  S  C


Date           12/19  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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          60      45    54      40    57      40    56      38    49
Temp          57 54   49 46 52 48   44 41 54 50   44 41 53 49   43 39 47 44
Dewpt         50 50   47 45 45 43   40 39 46 45   42 40 47 44   41 39 42 39
PWind Dir        SW      NW    NE       E    SW      SW    SW       W     N
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 B2   OV B2 B2 B2   B1 B1 SC SC   SC B1 B2 B2   B2 OV B2 OV
PoP 12hr         40      40    50      30    10      20    50      50    60
Rain shwrs     C  C    C  C  C  C    C  S             S  C  C    C  C  L  L

$$

TNZ036-170900-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
234 PM EST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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                      31          44          39          59          45
Temp          47 41 38 35 34 32 36 41 44 42 41 40 40 40 46 55 58 53 50 49 47 46
Dewpt         28 28 27 27 26 26 29 32 35 39 39 39 39 40 43 46 48 47 45 44 42 42
RH            47 59 64 72 72 78 75 70 70 89 92 96 96100 89 72 69 80 83 83 83 86
Wind Dir      SW SW SW SW SW  E  E SW SW  W SW SW NW  E SW SW SW SW SW SW SW SW
Wind Spd       5  3  2  1  1  2  1  2  2  2  3  3  1  1  0  2  3  5  6  5  4  2
Clouds        FW FW FW SC B1 B2 OV OV OV B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC B1 B2
PoP 12hr                      0          60          30          10          20
QPF 12hr                      0        0.08        0.04           0        0.01
Rain shwrs                       S  L  L  C  S  S  S                    S  S  C


Date           12/19  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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          58      44    53      39    57      41    55      38    47
Temp          55 52   48 45 51 47   43 40 53 50   45 42 52 48   42 39 45 43
Dewpt         49 49   47 43 43 41   39 38 45 45   42 41 46 44   41 38 40 37
PWind Dir        SW       W    NE      NE     S      SW    SW       W     N
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B2 B2   OV B2 B2 B2   B1 SC SC SC   SC B1 B2 B2   B2 OV B2 OV
PoP 12hr         40      40    50      30    10      20    50      50    60
Rain shwrs     C  C    C  C  C  C    C                S  C  C    C  C  L  L

$$

TNZ099-170900-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
234 PM EST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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                      32          47          43          60          49
Temp          50 43 39 37 35 33 37 44 47 45 45 44 44 44 49 57 59 55 53 52 51 50
Dewpt         28 29 28 27 27 28 30 35 38 40 41 40 40 41 44 47 48 48 46 46 45 45
RH            42 57 64 67 72 82 75 70 71 82 86 86 86 89 83 69 67 77 77 80 80 83
Wind Dir      SE  S  S  S SE SE NE SE SE SW  S  S NE NE  N  S  S  S SW SW SW SW
Wind Spd       3  3  2  1  1  1  2  3  4  2  3  1  1  1  0  1  2  2  3  3  3  1
Clouds        CL FW FW SC B1 B2 OV OV OV OV B2 B2 B2 B2 B2 B2 B1 B1 SC B1 B1 B2
PoP 12hr                     10          60          50          20          30
QPF 12hr                      0        0.09        0.05        0.01        0.02
Rain shwrs                    S  C  L  L  C  C  C  C  S  S        S  S  C  C  C


Date           12/19  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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          60      49    56      42    57      44    57      40    50
Temp          58 55   52 49 55 50   46 43 54 52   47 45 54 50   44 41 48 45
Dewpt         51 53   49 47 45 46   42 41 44 45   44 43 46 45   43 40 42 39
PWind Dir        SW      NW    NE       N     S       S     S       W     N
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B2 OV   OV OV B2 B2   SC SC SC SC   SC B1 B2 OV   OV OV OV OV
PoP 12hr         60      60    60      20    10      30    60      60    70
Rain shwrs     C  L    L  L  L  L    S  S             C  L  L    L  L  L  L

$$

NCZ060-170900-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
234 PM EST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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                      30          50          41          61          42
Temp          44 39 36 34 32 31 37 46 49 46 45 43 42 42 48 57 60 53 49 47 45 43
Dewpt         26 27 24 23 22 22 26 32 35 39 41 41 40 41 45 50 49 48 44 42 40 41
RH            49 62 61 64 66 69 64 58 58 76 86 93 93 96 89 77 67 83 83 83 82 93
Max/Min RH                   69          56          96          67          96
Wind Dir       E  S SE SE  E SE SE SE SE  S SE  E  E  E  E  S SE  S  S  W  W  W
Wind Dir Deg  11 19 15 14 11 13 15 13 13 16 15 10  7  7  9 18 15 17 18 24 26 24
Wind Spd       3  2  2  1  1  2  2  3  3  5  3  3  3  2  1  1  1  1  1  2  1  1
Clouds        FW FW FW SC B1 B2 OV OV OV OV B2 B2 B2 B1 B2 B1 B1 SC SC SC B1 B1
Clouds (%)     6 10 13 46 60 79 91 94 98 90 86 78 74 67 77 61 66 48 42 35 57 69
Vsby           0  0  0  0  0  0  0  0
PoP 12hr                      0          60          50          20          20
QPF 12hr                      0        0.05        0.11        0.02        0.02
Rain shwrs                          C  L  C  C  C  C  S  S  S  S  S  S  S  S  C
Haines                                    3                       4
LAL               1     1     1     1     1     1     1     1     1     1     1
Max Mix Hgt                            2000                    3300
AGL Mix Hgt                             300                    1600
Max Vent Rt                            2800                    5500
T Wind Dir                               SE                      SW
T Wind Spd                                9                       3
ADI                                       2                       5
Max LVORI                                 3                       7
Stability         B     G     F     B     C     F     F     B     B     G     F
Ceiling       23500 14800  8900  5500  2400  2400  2400 15900 20800 20800  2400
Sta Pres      28.11 28.12 28.08 28.12 28.11 28.11 28.10 28.09 28.09 28.07 28.05


Date           12/19  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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          62      45    56      41    58      40    56      41    53
Temp          58 55   49 46 54 50   45 42 55 51   45 41 53 50   45 42 51 48
Dewpt         51 51   46 45 47 46   42 41 46 43   40 40 47 45   42 41 45 43
PWind Dir         W      NW     E      SE     S      SE     S       W    NW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 OV   OV OV B2 B2   B1 B1 B1 SC   SC B1 B2 OV   OV OV OV OV
PoP 12hr         60      50    60      40    10      20    60      60    60
Rain shwrs     C  L    C  C  L  L    C  S             S  L  L    L  L  L  L

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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