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

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Point Forecast Matrices
National Weather Service Morristown TN
318 AM EDT Sun Aug 20 2017

TNZ017-202100-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
318 AM EDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
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                      89          65          89          66          88
Temp          63 64 77 86 88 82 74 70 68 67 78 85 88 82 75 71 69 68 78 86 87 83
Dewpt         61 63 66 64 62 67 66 65 64 67 68 65 67 70 69 67 67 67 69 68 68 69
RH            93 97 69 48 42 61 76 84 87100 71 51 50 67 82 87 93 97 74 55 53 63
Wind Dir       E  E NE  W  S SE  S  E  E  E SW  W  S SE SE SE SE SE SW SW SW SW
Wind Spd       2  2  2  1  0  2  3  3  3  2  3  3  4  4  3  3  3  2  5  8  6  5
Clouds        FW FW FW FW FW FW SC SC SC FW FW SC SC SC SC SC SC SC FW B1 SC SC
PoP 12hr                      5           5          10           5          20
QPF 12hr                      0           0           0           0        0.01
Rain shwrs                                                                 S  C
Tstms                                                                      S  C
Obvis         PF PF                   PF


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          70    80      62    81      60    80      61    80
Temp          74 71 79 75   66 64 79 75   65 62 78 74   65 63 78 75
Dewpt         69 68 71 67   64 61 60 60   58 59 60 61   60 61 60 61
PWind Dir        SW     W       N     N      NE    NE       E    NE
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    SC B1 B2 B2   B1 SC B1 SC   FW SC SC SC   SC SC SC SC
PoP 12hr         50    70      20    10      10    10      10    10
Rain shwrs     C  C  L  L    S  S
Tstms          C  C  L  L    S  S

$$

TNZ071-202100-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
318 AM EDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
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                      90          70          89          71          90
Temp          69 70 80 88 89 84 77 74 72 72 81 85 88 84 78 75 73 73 82 88 89 85
Dewpt         64 66 68 66 64 68 68 68 67 68 69 67 67 68 69 69 69 70 70 69 68 70
RH            84 87 67 48 44 59 74 82 84 87 67 55 50 59 74 82 87 90 67 54 50 61
Wind Dir       E SE NE NW  N SE  E SE  E SE SE SW  S SE SE  S  S  S SW SW SW SW
Wind Spd       2  2  2  1  1  1  2  2  2  2  1  2  2  2  3  3  3  3  8  9  9  6
Clouds        CL FW FW FW FW FW SC FW SC FW FW FW FW FW FW FW SC SC SC SC SC SC
PoP 12hr                      0           0          10           5          20
QPF 12hr                      0           0           0           0        0.01
Rain shwrs                                                                 S  C
Tstms                                                                      S  C
Obvis         PF PF                   PF


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          72    83      64    82      63    82      64    84
Temp          76 73 82 77   68 65 80 76   67 65 80 77   68 66 82 79
Dewpt         70 70 71 68   65 62 60 60   59 61 62 61   62 62 62 61
PWind Dir        SW     W       N     N      NE    NE      NE     N
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    SC B1 B2 B2   B1 B1 SC SC   FW FW SC SC   SC SC SC SC
PoP 12hr         40    60      20    10       5    10       5    10
Rain shwrs     C  C  L  L    S  S
Tstms          C  C  L  L    S  S

$$

TNZ036-202100-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
318 AM EDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
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                      91          71          91          71          90
Temp          69 70 81 88 90 85 78 75 73 73 82 88 90 85 78 75 73 73 82 88 89 85
Dewpt         65 67 69 67 64 69 67 68 67 68 69 68 65 69 69 70 69 69 71 70 69 71
RH            87 90 67 50 42 59 69 79 81 84 65 52 44 59 74 84 87 87 69 55 52 63
Wind Dir      NE NE  E SE  W SE NE NE NE NE SE  S  S  S  S  S SE SW SW SW  W SW
Wind Spd       1  1  3  1  1  1  2  2  2  2  1  3  3  2  3  2  1  1  9  9  5  4
Clouds        CL FW CL FW FW FW FW FW SC FW FW FW FW FW FW FW SC SC SC SC SC B1
PoP 12hr                      0           0           5           5          20
QPF 12hr                      0           0           0           0        0.01
Rain shwrs                                                                 S  C
Tstms                                                                      S  C


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          72    82      62    83      62    82      63    84
Temp          76 73 81 76   66 64 81 77   67 64 80 76   67 65 82 79
Dewpt         71 70 71 67   63 61 59 61   58 58 61 62   61 61 62 62
PWind Dir        SW     W       N     N       N    NE      NE    NE
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 B2 OV B2   B1 SC SC SC   FW FW FW SC   FW SC SC B1
PoP 12hr         50    60      20    10       5     5       5    10
Rain shwrs     C  C  L  L    S  S
Tstms          C  C  L  L    S  S

$$

TNZ099-202100-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
318 AM EDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
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                      93          73          92          73          91
Temp          69 70 82 90 92 87 80 77 75 75 84 89 91 86 80 77 75 74 83 89 90 86
Dewpt         66 68 69 67 65 68 68 69 67 70 69 68 68 68 69 71 70 71 71 69 68 70
RH            90 93 65 47 41 53 67 76 76 84 61 50 47 55 69 82 84 90 67 52 49 59
Wind Dir       N  N  E  E NE  E NE NE NE NE SE SE  S SE SE SE  S  S  S SW SW SW
Wind Spd       1  1  1  1  1  2  2  2  2  2  3  4  5  4  3  3  4  5  6  5  8  5
Clouds        CL CL FW FW FW FW FW FW FW FW FW FW SC FW FW FW SC SC SC SC SC SC
PoP 12hr                      0           0          10           5          20
QPF 12hr                      0           0           0           0        0.01
Rain shwrs                                                                 S  C
Tstms                                                                      S  C
Obvis         PF PF                   PF


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          74    86      68    85      64    86      66    86
Temp          78 75 85 81   72 69 83 79   69 66 84 80   70 68 84 81
Dewpt         71 71 71 69   67 65 61 59   60 61 63 63   64 63 63 62
PWind Dir        SW    NW       N     N       N    NE      NE    NE
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    SC B1 B2 B2   B2 B1 SC SC   FW FW FW FW   FW SC SC SC
PoP 12hr         30    60      30    10       5    10       5    20
Rain shwrs     C  C  L  L    C  C                              S  S
Tstms          C  C  L  L    S  S                              S  S

$$

NCZ060-202100-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
318 AM EDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
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                      91          64          88          69          88
Temp          61 62 77 88 90 83 74 70 67 66 77 83 87 82 76 73 71 71 80 86 87 82
Dewpt         61 62 67 64 64 70 67 65 63 66 70 68 69 70 69 69 67 68 71 69 69 71
RH           100100 71 45 42 65 79 84 87100 79 61 55 67 79 87 87 90 74 57 55 69
Min/Max RH                   41         100          55          90          55
Wind Dir       E  E SE  S  S SE  E  E  E  E SE  S  S SE SE SE SE SE  S SW SW SW
Wind Dir Deg   8  7 13 18 18 13 11  9  8  9 14 16 16 15 12 13 14 14 17 22 22 23
Wind Spd       1  3  2  3  2  1  3  3  3  3  4  5  6  4  3  4  4  4  4  4  6  3
Clouds        CL CL CL FW SC FW FW FW FW FW FW SC SC FW FW FW SC SC SC SC SC SC
Clouds (%)     1  1  1  6 27 23 23  7 18 15  7 27 44 20 21 25 36 40 41 45 46 37
Vsby           6  5 10 10 10  9  6  4
PoP 12hr                      5           0          10          10          30
QPF 12hr                      0           0           0           0        0.04
Rain shwrs                                                        S  S  S  C  S
Tstms                                                             S  S  S  C  S
Obvis         PF PF                   PF
Haines                        4                       4
LAL               1     1     1     1     1     1     1     1     2     2     3
Max Mix Hgt                6900                    6300
AGL Mix Hgt                5200                    4600
Max Vent Rt               17900                   32000
T Wind Dir                   SE                       S
T Wind Spd                    3                       6
ADI                          16                      28
Max LVORI                     5                       4
Stability         G     A     A     G     G     B     A     G     G     A     A
Ceiling        NONE  NONE  7200  7200  NONE  6300  6300  6300  6300  5500  NONE
Sta Pres      28.02 28.03 28.05 28.09 28.14 28.13 28.10 28.09 28.09 28.04 27.97


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          68    84      65    83      63    83      62    82
Temp          72 69 82 78   69 66 81 77   67 65 81 77   67 64 80 77
Dewpt         69 68 70 69   66 65 64 64   62 63 65 66   63 62 64 66
PWind Dir        SW    NW       N     N      NE     N       E    NE
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    SC SC B1 B2   B2 B2 B1 SC   SC SC SC SC   SC SC SC B1
PoP 12hr         30    60      30    20      10    10      10    20
Rain shwrs     S  C  L  L    C  C  S  S                        S  S
Tstms          S  C  L  L    S  S                              S  S

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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