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

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Point Forecast Matrices
National Weather Service Morristown TN
314 PM EST Mon Dec 18 2017

TNZ017-190900-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
314 PM EST Mon Dec 18 2017

Date           12/18/17      Tue 12/19/17            Wed 12/20/17            Thu
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                      36          57          43          50          34
Temp          54 47 43 41 39 38 44 53 56 52 49 47 45 44 46 49 49 43 41 39 37 35
Dewpt         43 42 41 40 39 38 41 41 40 42 43 44 44 44 44 45 43 41 38 36 34 33
RH            66 83 93 96100100 89 64 55 69 80 89 96100 93 86 80 93 89 89 89 92
Wind Dir       W  W  W  W  W SW SW  W  W  W  W SW  N NE NE NE NE NE NE NE  E  E
Wind Spd       5  4  3  4  3  3  4  6  6  4  1  0  0  2  4  8  6  6  4  3  3  3
Clouds        B2 OV OV OV OV OV B1 B1 B1 OV OV OV OV OV OV OV OV B2 B2 SC SC SC
PoP 12hr                     10          20          70          90          40
QPF 12hr                      0        0.01        0.13        0.55        0.01
Rain                                                              C  C
Rain shwrs                             S  S  C  L  L  D  D  L  L
Obvis                   F  F  F


Date           12/21  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17  Mon 12/25/17
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          55      34    56      42    56      37    52      36    49
Temp          51 46   39 35 52 50   46 43 53 48   42 38 49 45   40 37 46 40
Dewpt         39 38   34 33 42 42   45 43 46 39   36 36 42 39   39 37 37 33
PWind Dir        SE      SE    SE       S    SW      NW    SW      SW     W
Wind Char        LT      LT    LT      GN    LT      LT    LT      LT    LT
Avg Clouds    SC SC   SC SC B2 B2   OV OV OV B2   B1 B1 B2 B2   OV B2 B2 B2
PoP 12hr         10      10    40      60    40      30    30      30    50
Rain                         C  C    L  L                        C  C  C  C
Rain shwrs                                 C  C    C  C  C  C

$$

TNZ071-190900-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
314 PM EST Mon Dec 18 2017

Date           12/18/17      Tue 12/19/17            Wed 12/20/17            Thu
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                      41          59          48          55          40
Temp          56 50 47 45 43 42 47 55 58 54 52 51 50 48 50 53 54 48 46 45 43 41
Dewpt         45 45 44 42 42 41 43 46 46 46 49 50 49 48 49 50 49 46 44 42 40 39
RH            66 83 89 89 96 96 86 72 64 74 89 96 96100 96 89 83 93 93 89 89 92
Wind Dir      SW SW SW SW SW SW SW SW SW SW SW  W NE NE NE NE  N NE NE NE NE NE
Wind Spd       6  6  5  6  5  3  3  5  5  4  3  1  4  8 12  6  8  9  6  5  4  4
Clouds        B1 B2 OV OV OV B1 B1 B1 B2 OV OV OV OV OV OV OV OV B2 B2 B1 B1 SC
PoP 12hr                      5          30          90          90          20
QPF 12hr                      0        0.01        0.52        0.68        0.01
Rain                                                              S  S
Rain shwrs                          S  C  C  L  D  D  D  D  L  L
Obvis                   F  F  F


Date           12/21  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17  Mon 12/25/17
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          57      41    59      45    55      40    52      39    49
Temp          54 50   45 42 55 53   49 46 53 49   44 41 50 47   42 40 47 40
Dewpt         46 45   41 40 47 48   47 46 46 42   39 38 43 41   41 39 37 33
PWind Dir         S       S     S      SW     W       N    NW      SW     W
Wind Char        LT      LT    LT      GN    GN      LT    LT      LT    GN
Avg Clouds    SC SC   SC B1 B2 B2   OV OV B2 B2   B1 B1 B2 B2   B2 B2 B2 B2
PoP 12hr         10      10    40      70    40      30    30      40    50
Rain                         C  C    L  L                        C  C  C  C
Rain shwrs                                 C  C    C  C  C  C

$$

TNZ036-190900-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
314 PM EST Mon Dec 18 2017

Date           12/18/17      Tue 12/19/17            Wed 12/20/17            Thu
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                      40          57          47          54          39
Temp          55 49 46 44 42 41 46 54 56 53 51 50 49 48 50 53 53 47 45 44 42 40
Dewpt         45 44 44 42 42 40 43 45 46 47 49 49 48 48 48 49 48 45 42 39 38 38
RH            69 83 93 93100 96 89 71 69 80 93 96 96100 93 86 83 93 89 82 86 92
Wind Dir      SW SW SW SW SW SW SW SW SW SW SW SW NE NE NE NE NE NE NE NE NE NE
Wind Spd       5  3  3  2  1  2  2  4  4  1  1  1  2  4  6  3  3  5  5  4  3  3
Clouds        B1 B2 OV OV OV B1 SC B1 B2 OV OV OV OV OV OV OV OV B2 B2 SC SC SC
PoP 12hr                      5          30          90          90          20
QPF 12hr                      0        0.01        0.48        0.60        0.01
Rain                                                              S  S
Rain shwrs                          S  C  C  L  D  D  D  D  L  L
Obvis                   F  F  F


Date           12/21  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17  Mon 12/25/17
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          57      42    58      45    54      39    52      38    48
Temp          53 51   46 43 55 53   48 46 52 48   43 40 49 46   42 39 46 39
Dewpt         45 46   41 41 46 48   46 45 44 40   37 37 41 39   40 38 35 30
PWind Dir         S      SW     S      SW     W       N    NW      SW     W
Wind Char        LT      LT    LT      GN    LT      LT    LT      LT    LT
Avg Clouds    SC SC   SC B1 B2 OV   OV OV B2 B1   B1 B1 B2 B2   B2 B2 B2 B1
PoP 12hr         10      10    50      70    40      30    30      30    50
Rain                         C  C    L  L                        C  C  C  C
Rain shwrs                                 C  C    C  C  C  C

$$

TNZ099-190900-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
314 PM EST Mon Dec 18 2017

Date           12/18/17      Tue 12/19/17            Wed 12/20/17            Thu
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                      41          58          51          62          44
Temp          57 50 47 45 43 42 47 55 58 55 54 53 52 52 55 59 60 54 52 49 47 45
Dewpt         45 47 46 44 43 42 44 46 49 50 51 53 52 52 55 54 51 50 46 43 42 43
RH            64 89 96 96100100 89 72 72 83 90100100100100 83 72 86 80 80 83 93
Wind Dir       S SW SW SW SW  S  S  S  S  S SW  E NE  E  E NE  W  N  N NE  E  E
Wind Spd       5  3  2  2  1  1  1  3  3  2  1  2  4  5  8  2  3  9  6  4  4  4
Clouds        B1 B1 OV B2 B2 B1 B1 B1 OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 SC
PoP 12hr                      5          60          90          90          20
QPF 12hr                      0        0.06        0.84        0.88        0.01
Rain                                                              S  S
Rain shwrs                       S  C  L  L  D  D  D  D  D  L  L
Obvis                   F  F  F


Date           12/21  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17  Mon 12/25/17
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      48    55      42    54      40    50
Temp          55 53   49 47 57 55   51 48 54 50   45 43 52 48   44 41 48 41
Dewpt         46 46   45 44 48 51   48 47 43 42   39 39 42 41   43 39 35 31
PWind Dir        SE       S     S      SW    NW       N     E      NW     W
Wind Char        LT      LT    GN      GN    LT      LT    LT      LT    LT
Avg Clouds    SC SC   B1 B2 B2 OV   OV OV B2 B1   B1 B1 B2 B2   B2 B2 B2 B1
PoP 12hr         10      30    40      70    40      30    30      30    30
Rain                      C  C  C    L  L                        C  C  C  C
Rain shwrs                                 C  C    C  C  C  C

$$

NCZ060-190900-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
314 PM EST Mon Dec 18 2017

Date           12/18/17      Tue 12/19/17            Wed 12/20/17            Thu
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                      38          60          51          62          43
Temp          58 50 46 43 41 39 46 56 59 56 55 54 53 52 55 60 60 54 51 49 46 44
Dewpt         46 47 42 41 40 39 43 45 47 50 51 53 53 52 55 57 55 52 47 44 42 42
RH            64 89 86 93 96100 89 66 64 80 86 96100100100 90 84 93 86 83 86 93
Max/Min RH                  100          64         100          83          93
Wind Dir       W SW NE  S  S SE  E  W  W  S  E  E  E SW  S  W  W  N NE SE SE SE
Wind Dir Deg  25 23  4 18 18 15  9 24 25 16  9  9  9 22 19 24 26  0  6 12 12 12
Wind Spd       4  0  0  0  0  1  2  1  2  1  2  1  1  2  4  2  4  4  3  3  3  4
Clouds        SC SC SC B1 SC B1 SC SC B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B1
Clouds (%)    49 31 49 64 46 53 39 48 80 99100 99100 99100 98 96 85 85 73 73 54
Vsby           0  0  0  0  0  0  0  0
PoP 12hr                      5          50          90          90          30
QPF 12hr                      0        0.01        0.68        1.16        0.02
Rain                                                              C  C  S  S
Rain shwrs                          C  C  L  L  D  D  D  D  D  D
Obvis                   F  F  F
Haines                                    4                       3
LAL               1     1     1     1     1     1     1     1     1     1     1
Max Mix Hgt                            4200                    3300
AGL Mix Hgt                            2500                    1700
Max Vent Rt                           17400                   22800
T Wind Dir                                W                      SW
T Wind Spd                                6                      13
ADI                                      15                      20
Max LVORI                                 5                       5
Stability         B     F     F     B     D     D     D     D     B     F     F
Ceiling        NONE  NONE 23500 20800  4700  2400  1700  1700  4000  1700  2400
Sta Pres      28.05 28.07 28.08 28.06 28.03 27.99 27.83 27.77 27.80 27.82 27.89


Date           12/21  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17  Mon 12/25/17
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          57      39    58      44    56      40    55      38    51
Temp          54 50   44 40 54 52   48 45 54 49   44 41 52 48   42 39 48 42
Dewpt         44 41   39 39 46 48   47 45 47 43   40 38 45 43   42 39 38 37
PWind Dir        SE      SE    SE      SW     W       W     S      SW     W
Wind Char        LT      LT    LT      GN    LT      LT    LT      LT    LT
Avg Clouds    B1 SC   B1 B1 B2 OV   B2 OV OV B2   B1 B1 B2 B2   B2 B2 B2 B2
PoP 12hr         10      10    40      60    50      30    30      40    40
Rain                         C  C    L  L                        C  C  C  C
Rain shwrs                                 C  C    C  C  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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