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

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Point Forecast Matrices
National Weather Service Morristown TN
926 PM EST Wed Dec 13 2017

TNZ017-140900-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
926 PM EST Wed Dec 13 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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          39          23          39          24
Temp                33 34 34 32 33 36 37 33 29 26 25 25 31 37 38 32 29 28 27 25
Dewpt               19 22 23 23 25 24 23 24 23 23 21 22 25 24 22 23 23 23 23 23
RH                  56 61 64 69 72 61 56 69 78 88 84 88 78 59 52 69 78 81 85 92
Wind Dir            SW SW  W  W  W  W  W  W  N  N NE SW  W  W  W  W  W  W  W  W
Wind Spd            12 12 11  9  9  6  4  3  2  1  1  2  4 10 10  8  6  5  5  5
Clouds              FW B1 B2 B1 B2 B1 SC B1 B1 SC SC B2 B2 B1 B1 SC SC SC SC SC
PoP 12hr                      5           5           0           5           5
QPF 12hr                      0           0           0           0           0


Date           12/16  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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          45      28    49      37    55      36    52      32    47
Temp          42 37   33 29 45 44   40 38 51 46   41 37 49 44   37 33 44 39
Dewpt         26 26   25 26 33 36   38 38 44 41   37 37 40 37   33 29 27 28
PWind Dir        SW      SE     S      SW    SW       W     W       W     W
Wind Char        LT      LT    LT      LT    LT      LT    LT      GN    GN
Avg Clouds    SC FW   FW SC B2 OV   B2 B2 B2 B2   B1 B1 B1 B1   B1 SC SC FW
PoP 12hr          5       5    50      40    30      20    30      20    10
Rain shwrs                   C  C    C  C  C  C    S  S  C  C    S  S
Snowshwrs                    C                                      S

$$

TNZ071-140900-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
926 PM EST Wed Dec 13 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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          27          41          27
Temp                40 38 36 32 36 40 42 37 33 30 29 28 34 39 40 35 32 30 29 28
Dewpt               20 25 26 26 28 27 26 29 27 26 25 26 27 26 24 26 26 25 25 25
RH                  44 59 67 78 72 59 53 72 78 85 85 92 75 59 52 69 78 81 85 88
Wind Dir            SW SW SW  W NW NW NW  N  N NE  N  W  W  W  W SW SW SW  S SW
Wind Spd            13 11  8  5  4  3  3  3  3  3  3  3  4  8  8  6  5  5  4  4
Clouds              CL SC B1 B1 B2 B1 SC SC SC SC SC B1 B1 B1 B1 SC SC FW FW FW
PoP 12hr                      0           0           0           5           0
QPF 12hr                      0           0           0           0           0


Date           12/16  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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          49      32    49      41    55      39    55      35    50
Temp          46 41   36 33 46 46   43 42 53 48   44 40 52 47   40 36 47 42
Dewpt         30 30   29 30 35 40   42 42 47 44   41 40 42 39   36 32 32 32
PWind Dir        SW       S    SE      SW    SW       W     W       W     W
Wind Char        LT      LT    LT      LT    LT      LT    LT      GN    LT
Avg Clouds    FW FW   FW SC B2 OV   OV B2 B2 B2   B1 B1 B1 B1   SC SC SC FW
PoP 12hr          5      10    60      40    30      20    20      10    10
Rain shwrs                   L  L    C  C  C  C    S  S  S  S
Snowshwrs                    L

$$

TNZ036-140900-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
926 PM EST Wed Dec 13 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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          43          26          42          25
Temp                40 36 34 32 35 40 41 37 32 30 28 28 34 39 41 35 32 30 28 27
Dewpt               22 25 27 27 28 27 25 27 25 24 23 23 25 22 23 24 24 23 23 24
RH                  48 64 75 81 75 59 52 67 75 78 81 81 69 50 48 64 72 75 81 88
Wind Dir            SW SW SW  W NW  W NW  N  N  N  N NW  W  W  W  W  W SW SW SW
Wind Spd            11 10  6  3  4  2  2  2  2  2  2  2  3  5  6  4  4  3  3  3
Clouds              CL SC B1 B1 B1 B1 SC B1 B1 SC SC B1 B1 B1 B1 SC SC FW FW FW
PoP 12hr                      0           0           0           5           0
QPF 12hr                      0           0           0           0           0


Date           12/16  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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          49      31    48      41    55      40    55      35    50
Temp          45 41   36 32 45 45   43 42 53 48   44 41 52 47   40 36 47 42
Dewpt         27 29   28 30 35 40   42 41 46 43   40 39 40 37   34 31 30 31
PWind Dir        SW       S    SE      SW     W       W     W       W     W
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    FW FW   FW B1 B2 OV   B2 B2 B2 B2   B1 B1 B1 B1   SC SC SC FW
PoP 12hr          5      10    60      40    30      20    20      10    10
Rain shwrs                   L  L    C  C  C  C    S  S  S  S
Snowshwrs                    L

$$

TNZ099-140900-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
926 PM EST Wed Dec 13 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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          49          29          44          26
Temp                40 38 36 33 38 45 46 40 35 32 31 30 36 42 42 37 33 31 29 28
Dewpt               23 27 28 28 29 29 28 29 28 26 25 25 25 24 23 26 24 24 23 24
RH                  50 64 72 82 70 53 49 64 75 78 78 81 64 48 46 64 69 75 78 85
Wind Dir            SW SW  W NW  N NW NW  N  N  N  N NW NW NW  W  W  W  W  W  W
Wind Spd             8  6  4  3  6  4  4  4  3  3  3  3  4  8  8  6  3  2  2  2
Clouds              CL CL FW SC SC SC FW SC SC SC SC B1 B1 B1 B1 SC SC FW FW FW
PoP 12hr                      0           0           0           5           0
QPF 12hr                      0           0           0           0           0


Date           12/16  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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          51      34    50      43    56      41    56      37    52
Temp          48 43   38 35 47 47   45 44 54 49   45 42 53 48   42 38 49 44
Dewpt         28 30   29 31 35 41   44 43 44 44   41 40 41 39   36 32 30 33
PWind Dir        SW       S     S       S    SW       W     W      NW    NW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    FW FW   SC B1 B2 OV   B2 B2 B2 B2   B1 B1 B1 B1   SC SC FW FW
PoP 12hr          0      10    70      40    40      20    20      10    10
Rain shwrs                   L  L    C  C  C  C    S  S  S  S
Snowshwrs                    L

$$

NCZ060-140900-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
926 PM EST Wed Dec 13 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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          44          25          43          21
Temp                33 34 33 31 36 42 41 35 30 28 27 27 33 40 41 33 29 27 25 23
Dewpt               24 25 26 27 31 30 29 29 26 25 24 24 28 25 24 25 23 22 21 21
RH                  69 69 75 85 82 62 62 78 85 88 88 88 82 55 50 72 78 81 84 92
Max/Min RH                   85          60         100          50         100
Wind Dir            SW  W  W NW NW NW NW NW NW NW NW NW NW  W  W NW NW NW NW NW
Wind Dir Deg        22 24 27 31 32 29 29 31 30 31 32 31 29 28 28 29 30 31 32 32
Wind Spd             8  8  6  3  5  5  5  3  2  2  1  2  3  8  6  5  4  4  3  2
Clouds              CL CL FW SC SC SC FW FW FW SC SC B1 B1 B1 B1 SC SC FW FW FW
Clouds (%)           1  5 11 35 40 28 25 23 23 36 36 54 54 55 55 31 31 10 10  6
Vsby                 0  0  0  0  0  0
PoP 12hr                      0           0           0           5           0
QPF 12hr                      0           0           0           0           0
Haines                                    4                       4
LAL                     1     1     1     1     1     1     1     1     1     1
Max Mix Hgt                            4200                    3900
AGL Mix Hgt                            2500                    2200
Max Vent Rt                           22900                   18100
T Wind Dir                               NW                       W
T Wind Spd                                9                       8
ADI                                      20                      16
Max LVORI                                 4                       5
Stability               F     G     C     B     G     F     C     C     G     G
Ceiling              NONE  3200 15900  NONE  NONE 23500 18200  NONE  NONE  NONE
Sta Pres            27.71 27.75 27.81 27.86 27.88 27.88 27.93 27.98 28.03 28.06


Date           12/16  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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          51      29    51      40    57      40    55      34    50
Temp          47 39   35 30 47 46   43 41 54 49   45 41 52 46   39 35 47 40
Dewpt         27 28   26 27 33 40   42 41 48 45   41 40 41 39   34 30 28 31
PWind Dir        NW      SE    SE      SE    SW       W     W      NW    NW
Wind Char        LT      LT    LT      LT    LT      LT    LT      GN    GN
Avg Clouds    FW FW   FW B1 B2 OV   OV B2 B2 B2   B2 B1 B1 B1   SC SC FW FW
PoP 12hr          0      10    50      40    40      20    20      10    10
Rain shwrs                   C  C    C  C  C  C    S  S  S  S
Snowshwrs                    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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