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

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Point Forecast Matrices
National Weather Service Morristown TN
257 PM EDT Thu Aug 17 2017

TNZ017-180900-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
257 PM EDT Thu Aug 17 2017

Date           08/17/17      Fri 08/18/17            Sat 08/19/17            Sun
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
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                      70          84          63          87          64
Temp          85 82 77 73 71 71 77 82 82 76 71 66 63 65 76 86 86 78 70 66 64 66
Dewpt         71 71 71 71 71 70 70 69 68 68 66 65 63 63 63 64 65 65 64 63 63 64
RH            63 69 82 93100 97 79 65 63 76 84 97100 93 64 48 50 64 81 90 97 93
Wind Dir      SW SW SW  S SW SW  W  W  W  W  W  W  S  E  S  W  W  W  N NE  E  S
Wind Spd       3  3  3  4  5  5  8  9  8  4  2  1  0  0  2  3  3  2  1  0  0  0
Clouds        B2 B1 B1 B1 B2 B2 B1 B1 SC SC SC FW SC SC FW SC FW FW FW FW FW FW
PoP 12hr                     40          30           5           0           0
QPF 12hr                   0.04        0.07           0           0           0
Rain shwrs     C  C  C  S  C  C  C  C  C
Tstms          C  C  C  S  C  C  C  C  C


Date           08/20  Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          88      67    88      67    88      68    83      66    82
Temp          86 79   68 68 86 80   68 69 87 79   70 69 82 77   68 67 80 74
Dewpt         63 68   66 66 64 71   67 67 69 71   69 68 71 70   67 66 67 66
PWind Dir        SW      SE    SW      SW    SW      SW     W      NW     N
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    FW FW   FW SC SC SC   SC SC SC B1   B1 B2 B2 B2   B2 B1 B2 B1
PoP 12hr         10       5    20      20    30      40    50      30    40
Rain shwrs                   S  S    S  S  C  C    C  C  C  C    C  C  C  C
Tstms                        S  S    S  S  C  C    C  C  C  C    C  C  C  C

$$

TNZ071-180900-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
257 PM EDT Thu Aug 17 2017

Date           08/17/17      Fri 08/18/17            Sat 08/19/17            Sun
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
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                      73          87          67          89          67
Temp          87 84 80 76 74 74 80 85 85 82 74 70 68 68 78 87 88 82 74 70 68 68
Dewpt         72 72 71 71 71 71 71 71 71 69 68 67 67 66 66 66 66 66 66 67 67 66
RH            61 67 74 85 90 90 74 63 63 65 82 90 97 93 67 50 48 58 76 90 97 93
Wind Dir      SW SW SW SW SW SW SW  W  W  W  W  W  N  E  N NW  W  W  W  W  N NE
Wind Spd       8  6  5  5  5  4  5  9  8  6  3  0  0  1  2  3  4  3  1  0  0  2
Clouds        B1 B1 B1 B1 B2 B2 B1 B1 SC SC FW FW FW FW FW FW FW FW FW FW FW FW
PoP 12hr                     30          40           5           0           0
QPF 12hr                   0.04        0.05           0           0           0
Rain shwrs     C  C  C  S  C  C  C  S  S
Tstms          C  C  C  S  C  C  C  S  S


Date           08/20  Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          91      71    89      72    88      72    86      69    84
Temp          89 84   74 72 85 85   75 73 87 82   74 73 86 81   72 70 83 79
Dewpt         66 68   69 69 68 70   69 70 71 71   71 71 71 71   70 68 68 68
PWind Dir         W      NE    SW      SW    SW      SW     W      NW     N
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    FW FW   FW FW FW SC   FW FW B1 SC   B1 B1 B2 B2   B2 B2 B1 B1
PoP 12hr          5       5    20      20    30      40    50      30    30
Rain shwrs                   S  S    S  S  C  C    C  C  C  C    C  C  C  C
Tstms                        S  S    S  S  C  C    C  C  C  C    C  C  C  C

$$

TNZ036-180900-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
257 PM EDT Thu Aug 17 2017

Date           08/17/17      Fri 08/18/17            Sat 08/19/17            Sun
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
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                      73          87          67          89          68
Temp          88 85 80 76 74 74 80 85 85 82 73 71 68 68 78 86 89 82 75 71 69 69
Dewpt         72 72 72 72 72 71 71 71 70 70 68 67 67 67 67 67 67 67 67 67 67 67
RH            59 65 77 87 93 90 74 63 61 67 84 87 97 97 69 53 48 61 76 87 93 93
Wind Dir      SW SW SW SW SW SW  W  W  W  W NW NW  N  N  W  S SW SW NW NE  E  S
Wind Spd       8  6  5  4  4  3  4  6  6  3  2  0  0  0  1  2  1  1  0  0  0  0
Clouds        B1 B1 B1 B1 B2 B2 B1 B1 SC FW FW FW FW SC FW FW FW FW FW FW FW FW
PoP 12hr                     40          30           5           0           0
QPF 12hr                   0.04        0.03           0           0           0
Rain shwrs     C  C  C  C  C  C  C  S
Tstms          C  C  C  C  C  C  C  S


Date           08/20  Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          91      71    90      72    89      72    86      69    84
Temp          89 84   74 72 88 85   74 73 88 84   74 73 85 80   71 70 83 79
Dewpt         67 70   69 69 69 72   70 71 71 72   71 71 73 72   69 68 68 68
PWind Dir        SW       S     S      SW    SW      SW     W      NW     N
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    FW FW   FW FW FW SC   FW SC SC B1   B1 B1 B2 B2   B2 B2 B1 B1
PoP 12hr         10       5    20      20    40      50    50      30    30
Rain shwrs                   S  S    S  S  C  C    C  C  C  C    C  C  C  C
Tstms                        S  S    S  S  C  C    C  C  C  C    C  C  C  C

$$

TNZ099-180900-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
257 PM EDT Thu Aug 17 2017

Date           08/17/17      Fri 08/18/17            Sat 08/19/17            Sun
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
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                      75          90          69          91          70
Temp          90 87 82 78 75 76 82 88 88 84 77 74 70 70 81 89 91 85 76 73 71 71
Dewpt         73 73 73 73 73 72 72 71 70 69 69 69 68 67 66 65 66 67 68 69 69 68
RH            58 63 74 85 94 87 72 57 55 61 76 84 93 90 60 45 44 55 76 87 93 90
Wind Dir      SW SW SW SW SW SW  W  W  W NW NW NW  N  N  N  N NW NW  N  E NE NE
Wind Spd       8  5  3  2  1  1  3  6  6  6  3  1  0  1  2  3  2  2  1  0  0  1
Clouds        B1 B1 B1 B1 B1 B2 B1 B1 SC FW FW FW FW FW FW FW FW FW FW FW FW FW
PoP 12hr                     40          30           0           0           5
QPF 12hr                   0.04        0.04           0           0           0
Rain shwrs     C  C  C  S  C  C  C  S
Tstms          C  C  C  S  C  C  C  S


Date           08/20  Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          93      73    92      74    90      73    89      72    86
Temp          91 88   77 74 89 88   76 75 88 83   75 74 87 84   75 73 85 81
Dewpt         66 68   70 70 68 70   72 72 71 72   73 72 71 71   72 70 70 68
PWind Dir         E      NE     S       S     S      SW     W      NW     N
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    FW FW   FW FW FW SC   SC SC B1 B1   SC B1 B2 B1   B1 B2 B1 B1
PoP 12hr          5       5    20      20    40      40    50      30    30
Rain shwrs                   S  S    S  S  C  C    C  C  C  C    C  C  C  C
Tstms                        S  S    S  S  C  C    C  C  C  C    C  C  C  C

$$

NCZ060-180900-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
257 PM EDT Thu Aug 17 2017

Date           08/17/17      Fri 08/18/17            Sat 08/19/17            Sun
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
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                      69          85          63          87          65
Temp          86 82 77 72 69 70 77 83 83 78 71 67 64 64 76 84 86 78 71 67 66 67
Dewpt         71 71 70 70 69 70 70 70 70 72 68 65 63 63 64 66 68 69 67 64 64 64
RH            61 69 79 93100100 79 65 65 82 90 93 97 97 66 55 55 74 87 90 93 90
Max/Min RH                  100          65         100          51          97
Wind Dir       W  W SW SW  W NW  W  W  W NW  N  E NE NW NW  W NW  N NE  E  E  E
Wind Dir Deg  24 25 22 20 27 29 28 26 27 30  2 10  3 30 29 28 30 33  3  9  8  8
Wind Spd       6  5  4  3  4  1  4  8  6  2  1  0  0  0  2  4  3  1  1  1  1  1
Clouds        B1 B1 B1 B1 B1 B2 B1 B1 SC SC FW FW FW FW FW FW FW FW FW FW FW FW
Clouds (%)    60 56 57 59 67 75 66 56 43 26 12 17 10 11  9 11 13 12 16  9  9  9
Vsby          10 10  7  5  3  2 10 10
PoP 12hr                     30          30           5           0           5
QPF 12hr                   0.04        0.05           0           0           0
Rain shwrs     C  C  C  S  C  C  C  C  C
Tstms          C  C  C  S  C  C  C  C  C
Haines                                    4                       5
LAL               3     3     3     3     3     1     1     1     1     1     1
Max Mix Hgt                            5900                    5900
AGL Mix Hgt                            4200                    4200
Max Vent Rt                           53400                   24300
T Wind Dir                                W                      NW
T Wind Spd                               12                       5
ADI                                      46                      21
Max LVORI                                 4                       5
Stability         B     F     F     B     A     G     G     A     A     G     G
Ceiling       12700  4000  3200  5500  NONE  NONE 23500  NONE  NONE  NONE  NONE
Sta Pres      27.94 27.95 27.93 27.93 27.92 27.93 27.93 27.93 27.92 27.96 28.00


Date           08/20  Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          91      68    87      68    87      68    86      66    85
Temp          89 83   71 69 83 79   70 69 86 78   70 69 85 78   68 67 84 78
Dewpt         65 71   67 67 67 71   69 68 71 73   69 69 70 71   68 67 69 68
PWind Dir         S      SE     S       S    SW      SW     W      NW    NW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    FW FW   FW FW FW SC   SC SC B1 B1   B1 B1 B2 B1   B1 B1 B2 B1
PoP 12hr          5       5    20      20    30      30    40      30    40
Rain shwrs                   S  S    S  S  C  C    C  C  C  C    C  C  C  C
Tstms                        S  S    S  S  C  C    C  C  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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