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

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Point Forecast Matrices
National Weather Service Morristown TN
252 PM EST Fri Dec 15 2017

TNZ017-160900-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
252 PM EST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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                      23          50          28          49          39
Temp          38 32 29 27 25 25 33 45 49 40 36 33 31 29 36 45 48 45 43 42 41 40
Dewpt         25 23 19 19 19 20 23 25 26 27 26 26 25 26 30 30 32 35 37 39 40 40
RH            59 69 66 71 78 81 66 45 40 59 67 75 78 88 79 55 54 68 79 89 96100
Wind Dir       W  W  W  W SW SW SW SW SW  S  N  N SE  N NE NW  W  E  S  S  S  S
Wind Spd      10  8  5  5  4  4  5  8  6  4  0  0  3  0  1  2  4  3  2  3  3  1
Clouds        B1 SC SC SC SC SC FW FW FW FW CL FW SC B1 B2 OV OV B2 B2 B2 B2 B2
PoP 12hr                      0           0           0          40          30
QPF 12hr                      0           0           0        0.02        0.02
Rain shwrs                                               S  C  C  C  C  C  C  C


Date           12/18  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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    59      34    52      31    57      37    57
Temp          54 52   48 45 56 49   41 35 48 43   36 33 52 49   42 38 53 47
Dewpt         51 48   46 44 48 45   40 33 27 28   27 27 36 37   37 38 46 44
PWind Dir        SW       W     W       W     W      SE     S       S    SW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B2 B2   B2 B2 B2 B2   B1 SC FW FW   FW FW SC FW   SC SC B2 B2
PoP 12hr         30      40    50      20    10      10    10      20    50
Rain shwrs     C  C    C  C  C  C    S  S                        S  S  C  C

$$

TNZ071-160900-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
252 PM EST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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                      27          52          33          48          43
Temp          38 34 32 30 29 29 36 47 51 44 40 38 36 34 38 45 48 46 45 44 44 44
Dewpt         26 24 20 21 20 22 25 28 28 31 30 29 28 29 32 35 38 39 42 43 44 44
RH            62 66 61 69 69 75 64 47 41 60 67 70 72 82 79 68 68 76 89 96100100
Wind Dir       W SW SW SW  S  S SW SW SW  S SW NW SE NE  N NW  E SW  S SW SW  S
Wind Spd      11  5  4  4  3  4  5  6  8  4  2  2  2  2  2  3  3  0  1  2  2  2
Clouds        B1 FW FW CL FW FW CL CL CL FW FW SC B1 B1 B2 OV OV OV B2 B2 B2 OV
PoP 12hr                      0           0           0          40          40
QPF 12hr                      0           0           0        0.02        0.05
Rain                                                  S
Rain shwrs                                               C  C  C  C  C  C  C  C


Date           12/18  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          59      47    60      39    55      36    59      42    57
Temp          56 54   50 48 57 51   44 40 52 47   41 37 54 52   46 43 54 48
Dewpt         52 51   49 47 52 49   43 39 37 34   32 33 42 43   43 43 50 46
PWind Dir        SW      SW    SW      NW    NE       E     S      SW    SW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    OV B2   B2 B2 B2 OV   B1 SC FW FW   FW SC SC SC   B1 B1 B2 B2
PoP 12hr         30      30    50      20    10      10    10      30    60
Rain shwrs     C  C    C  C  C  C    S  S                        C  C  L  L

$$

TNZ036-160900-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
252 PM EST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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                      26          52          32          47          43
Temp          40 35 32 30 28 28 35 47 51 43 39 37 35 33 37 44 47 45 45 44 44 44
Dewpt         21 21 20 21 21 21 24 28 28 31 30 29 28 29 32 34 37 38 40 40 42 42
RH            46 56 61 69 75 75 64 47 41 62 70 72 75 85 82 68 68 76 82 86 93 93
Wind Dir      SW  W SW SW SW SW SW SW SW SW  N NE NE NE  W  W SE  E  N NW NW SW
Wind Spd       8  4  2  2  2  2  4  6  5  3  0  1  1  1  1  3  2  1  1  1  2  1
Clouds        B1 FW FW FW FW FW CL CL CL FW FW SC B1 B1 B2 OV OV B2 B2 OV B2 OV
PoP 12hr                      0           0           0          50          40
QPF 12hr                      0           0           0        0.02        0.04
Rain                                                  S
Rain shwrs                                               C  C  C  C  C  C  C  S


Date           12/18  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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      46    60      39    55      36    58      42    57
Temp          55 53   49 47 57 51   44 40 52 47   41 37 54 51   46 43 54 48
Dewpt         51 51   48 47 51 48   42 37 33 32   30 32 40 43   43 43 48 44
PWind Dir        SW      SW     W      NW     N       E     S      SW    SW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    OV B2   B2 B2 B2 B2   B1 SC FW FW   FW SC SC SC   B1 B2 B2 B2
PoP 12hr         20      40    50      20    10      10    10      30    60
Rain shwrs     S  S    C  C  C  C    S  S                        C  C  L  L

$$

TNZ099-160900-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
252 PM EST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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                      27          52          35          48          45
Temp          39 35 32 30 29 29 36 47 51 46 42 40 38 36 40 45 48 47 46 46 45 46
Dewpt         22 22 22 22 22 22 26 28 30 31 30 29 29 30 32 35 38 40 42 43 43 45
RH            50 59 66 72 75 75 67 47 44 55 62 64 70 79 73 68 68 76 86 89 93 96
Wind Dir      NW  W  W  W SW SW  S SW  S  S  N  N  E NE NW  N  S  S  S SE  S  S
Wind Spd       5  4  2  2  1  2  2  4  4  3  0  0  1  1  2  2  1  3  3  2  2  1
Clouds        B1 FW CL FW CL FW CL CL FW FW FW B1 B1 B2 OV OV OV B2 B2 OV B2 OV
PoP 12hr                      0           0          10          60          50
QPF 12hr                      0           0           0        0.08        0.12
Rain                                                  C
Rain shwrs                                               C  L  L  C  C  C  C  C


Date           12/18  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          61      49    61      42    56      39    59      46    58
Temp          58 56   52 50 59 53   47 43 53 49   43 40 55 54   49 47 56 50
Dewpt         52 52   49 49 52 49   44 40 38 37   35 37 42 46   46 47 50 46
PWind Dir         S      SW     W       N    NE      SE     S       S    SW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    OV B2   B2 B2 B2 OV   B1 SC FW FW   FW SC SC SC   B1 B2 OV B2
PoP 12hr         40      40    60      10    10      10    20      40    60
Rain shwrs     C  C    C  C  L  L                        S  S    C  C  L  L

$$

NCZ060-160900-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
252 PM EST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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                      23          54          30          53          43
Temp          34 30 28 26 25 25 34 48 53 44 39 36 34 31 38 48 52 49 47 46 45 44
Dewpt         24 24 20 20 19 20 24 27 28 28 27 26 26 27 31 29 35 39 41 43 44 44
RH            66 78 71 78 78 81 66 44 38 53 62 67 72 85 76 47 52 68 79 89 96100
Max/Min RH                   81          38          85          46         100
Wind Dir       W NW NW NW NW  W SW  W  W  E NE NE  E  E NE SE SE  S SE SE  S  S
Wind Dir Deg  28 29 30 31 30 28 22 25 24 11  4  6 10  7  4 14 14 16 14 13 17 17
Wind Spd       0  5  3  3  2  2  2  3  3  2  2  2  3  1  1  6  8  4  3  3  5  1
Clouds        B1 FW CL CL CL FW CL CL CL FW FW SC B1 B1 B2 OV OV OV B2 B2 B2 OV
Clouds (%)    52 10  4  1  1  9  1  1  3  6 14 34 52 61 75 93 95 89 74 87 81 89
Vsby           0  0  0  0  0  0  0  0
PoP 12hr                      0           0           0          60          50
QPF 12hr                      0           0           0        0.04        0.11
Rain                                                  S
Rain shwrs                                               C  L  L  C  C  C  C  C
Haines                                    4                       2
LAL               1     1     1     1     1     1     1     1     1     1     1
Max Mix Hgt                            4700                    2600
AGL Mix Hgt                            3000                     900
Max Vent Rt                           20700                    7300
T Wind Dir                                W                      SE
T Wind Spd                                6                       8
ADI                                      18                       6
Max LVORI                                 3                       5
Stability         C     G     G     B     B     G     F     C     B     D     D
Ceiling       23500  NONE  NONE  NONE  NONE 14800 13800  5500  3200  3200  2400
Sta Pres      27.98 28.04 28.07 28.10 28.11 28.14 28.11 28.14 28.11 28.09 28.04


Date           12/18  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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    62      39    58      36    58      41    59
Temp          58 55   49 46 59 53   45 40 54 49   42 37 54 51   45 42 55 50
Dewpt         54 52   46 45 51 49   42 39 36 36   34 34 40 42   42 42 50 49
PWind Dir        SW      SW     W      NW     N       E    SE       S    SW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    OV OV   B2 B2 B2 OV   B2 SC SC FW   FW SC SC SC   B1 B2 B2 B2
PoP 12hr         50      30    60      20    10      10    20      40    60
Rain shwrs     C  C    C  C  L  L    S  S                S  S    C  C  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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