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

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Point Forecast Matrices
National Weather Service Morristown TN
1125 AM EST Tue Feb 21 2017

TNZ017-212100-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
1125 AM EST Tue Feb 21 2017

Date             Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      70          48          63          49          70
Temp                   64 69 62 57 55 52 49 54 60 62 59 55 53 51 50 57 65 69 63
Dewpt                  43 44 45 47 48 48 48 49 53 52 52 50 49 49 48 53 52 53 51
RH                     46 40 54 69 77 86 96 83 78 70 78 83 86 93 93 86 63 57 65
Wind Dir                S  S SE SE  E  E  E  E SW NE NE  E SE SE  S  S  S  S  S
Wind Spd                9  8  6  5  3  4  2  3  1  2  2  2  3  2  2  3  4  4  3
Clouds                 B1 B1 B2 OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B1
PoP 12hr                      5          70          80          10          30
QPF 12hr                      0        0.14        0.28           0        0.02
Rain                          C  C  L  L
Rain shwrs                                D  D  C  S                    C  C
Tstms                                                                   S  S


Date          Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          49    73      48    55      29    49      32    55
Temp          55 50 67 65   55 48 53 47   36 30 44 44   37 33 50 51
Dewpt         49 49 52 52   53 48 35 28   25 22 23 24   26 27 32 36
PWind Dir         S     S       S     W      NW     W       W    SW
Wind Char        LT    LT      LT    GN      GN    LT      LT    LT
Avg Clouds    B1 B1 SC SC   B1 B2 B2 B1   B1 SC SC SC   B1 B1 B1 B1
PoP 12hr         10    10      60    40      10     5      20    20
Rain shwrs                   C  L  C  C                     S     S
Snowshwrs                                                   S
Tstms                        C  C

$$

TNZ071-212100-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
1125 AM EST Tue Feb 21 2017

Date             Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      69          53          65          52          71
Temp                   66 68 63 60 57 56 54 58 62 64 61 58 56 54 53 59 67 70 65
Dewpt                  46 47 49 51 53 52 52 53 56 55 55 53 51 51 49 55 55 55 54
RH                     48 47 60 72 86 86 93 83 81 73 81 83 83 90 86 87 65 59 68
Wind Dir                S  S SE SE  E NE NE NE  N SE SE SE SW  S SE SW SW SW  S
Wind Spd                9  6  4  2  2  3  2  3  2  1  1  3  1  2  3  6  8  6  4
Clouds                 B1 B2 OV OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1
PoP 12hr                     30          70          60          10          30
QPF 12hr                   0.03        0.17        0.12           0        0.01
Rain                       C  C  L  L  L
Rain shwrs                                L  L  C  S                    C  C
Tstms                                                                   S  S


Date          Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          53    75      50    55      33    53      37    59
Temp          58 54 70 67   57 50 54 48   39 34 48 48   41 38 54 55
Dewpt         51 52 56 54   54 45 33 29   25 24 27 27   30 30 38 38
PWind Dir         S     S      SW     W       W    SW       S    SW
Wind Char        LT    GN      GN    GN      LT    LT      LT    LT
Avg Clouds    B1 SC SC B1   B2 B2 B1 B1   SC SC FW FW   B1 B1 B2 B2
PoP 12hr         10    20      70    30       5     5      10    20
Rain shwrs              S    L  L  C  S                           S
Tstms                   S    L  C

$$

TNZ036-212100-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
1125 AM EST Tue Feb 21 2017

Date             Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      71          53          66          53          70
Temp                   67 70 65 61 60 56 54 58 63 65 62 59 57 55 54 59 66 69 64
Dewpt                  46 48 50 52 52 52 52 53 55 55 54 53 51 52 50 54 55 55 53
RH                     47 45 58 72 75 86 93 83 75 70 75 80 80 90 86 83 68 61 67
Wind Dir                S  S SE SE  E NE NE NE NE  S SE SE NW SW  S SW SW SW  S
Wind Spd                8  8  4  2  3  4  3  3  1  3  2  2  1  3  2  5  9  8  3
Clouds                 B1 B2 OV OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1
PoP 12hr                     30          70          60          10          30
QPF 12hr                   0.03        0.17        0.12           0        0.01
Rain                    S  C  C  L  L  L
Rain shwrs                                L  L  C  S                    C  C
Tstms                                                                   S  S


Date          Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          52    74      48    55      32    53      36    59
Temp          57 53 69 66   55 48 53 48   38 33 48 48   41 37 54 55
Dewpt         52 52 55 53   55 44 31 27   25 24 26 27   30 29 36 38
PWind Dir         S    SW      SW     W      NW     W      SW    SW
Wind Char        LT    GN      GN    GN      LT    LT      LT    LT
Avg Clouds    B1 B1 B1 B1   B2 B2 SC B1   SC SC FW FW   B1 B1 B2 B2
PoP 12hr         10    20      60    20       5     5      20    30
Rain shwrs              S    L  L  S  S                  S  S  S  C
Tstms                   S    L  C

$$

TNZ099-212100-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
1125 AM EST Tue Feb 21 2017

Date             Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      68          55          68          54          72
Temp                   66 67 65 62 61 58 56 60 65 67 64 60 58 56 55 61 68 71 67
Dewpt                  50 51 51 52 54 54 55 56 56 57 56 56 54 54 53 56 56 57 55
RH                     56 56 60 70 78 86 96 87 73 70 75 87 86 93 93 84 65 61 65
Wind Dir               SE SE SE  E  E  E NE NE NE  E NE SE SW SE  S  S  S  S  S
Wind Spd               11 10  6  2  2  3  1  2  2  2  2  2  2  1  3  5  6  8  5
Clouds                 B2 OV OV OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1
PoP 12hr                     60          70          50          10          20
QPF 12hr                   0.07        0.19        0.08           0        0.01
Rain                    C  L  L  L  L  L
Rain shwrs                                C  C  C  S                    S  S
Tstms                                                                   S  S


Date          Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          55    74      50    57      34    56      38    62
Temp          60 56 70 66   57 50 55 50   40 35 51 50   43 39 56 58
Dewpt         55 54 56 56   56 45 30 28   28 27 25 28   33 33 37 39
PWind Dir         S     S      SW    NW      NW    NW      SW     S
Wind Char        LT    GN      GN    GN      LT    LT      LT    LT
Avg Clouds    B1 B1 B1 B1   B1 B1 SC B1   SC FW FW FW   SC B1 B1 B2
PoP 12hr         10    20      60    20       5     5      10    20
Rain shwrs              S    L  L  S                              S
Tstms                   S    L  C

$$

NCZ060-212100-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
1125 AM EST Tue Feb 21 2017

Date             Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      69          50          67          51          70
Temp                   66 67 61 57 56 54 51 56 63 66 62 58 55 54 52 58 66 69 64
Dewpt                  47 47 52 53 55 53 51 53 56 56 55 54 51 52 51 55 54 54 54
RH                     50 49 72 86 96 96100 90 78 70 78 86 86 93 96 90 65 59 70
Min/Max RH                   47         100          70          96          59
Wind Dir               SE SE SE SE SE SE  E  E  S  S SE SE SE SE  E  S  S  S SE
Wind Dir Deg           14 14 12 12 12 12 11 11 16 18 15 13 14 13 11 17 18 18 15
Wind Spd               12 10  8  6  8  8  5  3  3  3  1  4  4  3  3  4  8  9  4
Clouds                 B2 B2 OV OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1
Clouds (%)             71 84 94 97 99 99 99 99 79 79 55 55 61 61 73 73 68 68 59
Vsby                   10 10  4  4  2
PoP 12hr                     50          80          70          10          30
QPF 12hr                   0.04        0.28        0.08           0        0.01
Rain                    C  C  L  L  D  D
Rain shwrs                                L  L  C  S                    C  C
Tstms                                                                   S  S
Haines                        3                       3
LAL                     1     1     1     1     1     1     1     1     2     2
Max Mix Hgt                4500                    2700
AGL Mix Hgt                2800                    1000
Max Vent Rt               54600                    7100
T Wind Dir                   SE                      SE
T Wind Spd                   19                       6
ADI                          47                       6
Max LVORI                     4                       9
Stability               C     C     D     D     B     B     F     F     C     B
Ceiling             20800  3200  2400  2400  2400  8900  3200  4000  4000  4000
Sta Pres            27.97 27.93 27.88 27.86 27.87 27.84 27.85 27.84 27.82 27.79


Date          Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          52    73      48    54      30    53      34    60
Temp          57 53 68 65   55 48 53 46   37 31 48 47   39 36 54 54
Dewpt         53 53 55 55   54 47 32 27   25 25 23 26   30 30 36 36
PWind Dir        SE     S       S    NW      NW    NW       W     W
Wind Char        LT    LT      LT    GN      LT    LT      LT    LT
Avg Clouds    B1 B1 B1 B1   B2 B2 B1 SC   SC FW FW FW   SC SC B1 B1
PoP 12hr         10    20      60    20       5     5       5    20
Rain shwrs              S    L  L  S  S                           S
Tstms                   S    L  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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