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

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Point Forecast Matrices
National Weather Service Morristown TN
355 AM EDT Thu Jul 20 2017

TNZ017-202100-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
355 AM EDT Thu Jul 20 2017

Date             Thu 07/20/17            Fri 07/21/17            Sat 07/22/17
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          69          93          70          91
Temp          69 69 82 90 92 87 78 74 72 72 83 90 92 87 79 75 73 72 83 89 90 86
Dewpt         66 66 68 65 64 68 67 66 65 68 70 71 70 72 70 69 70 70 70 71 70 70
RH            90 90 63 44 40 53 69 76 79 87 65 54 49 61 74 82 90 93 65 56 52 59
Wind Dir      SE SE  W  W  W SW  S  S  S SW  W  W  W NW  S  S  S SW  W  W  W SW
Wind Spd       2  1  3  4  2  2  3  2  3  2  2  3  4  2  1  1  1  2  4  5  5  4
Clouds        FW FW FW SC SC FW FW CL SC FW FW SC B1 SC SC SC SC SC B1 B1 B1 B1
PoP 12hr                      5           5          20          20          30
QPF 12hr                      0           0        0.04        0.04        0.16
Rain shwrs                                         S  S  S              S  C  S
Tstms                                              S  S  S              S  C  S
Obvis         PF PF                PF PF


Date          Sun 07/23/17  Mon 07/24/17  Tue 07/25/17  Wed 07/26/17
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    88      70    86      66    85      66    84
Temp          76 74 86 84   74 72 84 81   70 68 83 80   70 68 82 79
Dewpt         68 70 69 70   69 69 68 67   67 65 65 65   64 64 63 65
PWind Dir        SW    SW      SW     W       W    NW      NE     S
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 SC B1 B1   B2 B1 B2 B2   B1 B1 B2 B1   SC SC B1 B1
PoP 12hr         20    50      40    60      40    30      10    20
Rain shwrs     S  S  C  C    C  C  C  L    C  C  C  C          S  S
Tstms          S  S  C  C    C  C  C  L    C  C  C  C          S  S

$$

TNZ071-202100-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
355 AM EDT Thu Jul 20 2017

Date             Thu 07/20/17            Fri 07/21/17            Sat 07/22/17
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          95          73          92
Temp          74 73 84 91 92 88 81 77 75 75 86 93 94 90 81 78 75 75 84 90 91 88
Dewpt         70 69 69 68 67 70 70 71 69 70 72 72 70 71 71 71 70 71 72 72 70 72
RH            87 87 61 47 44 55 69 82 82 84 63 51 46 54 72 79 84 87 67 56 50 59
Wind Dir       S  S NW NW  N  S  S  S SE  S NW NW NW  S  S  S  S SW SW SW SW SW
Wind Spd       2  1  2  4  2  1  3  2  3  2  3  3  4  4  3  2  2  4  5  6  8  5
Clouds        CL FW SC SC SC SC FW FW FW FW FW SC SC SC SC SC SC SC B1 B1 B1 B1
PoP 12hr                      5           5          10          10          30
QPF 12hr                      0           0           0           0        0.12
Rain shwrs                                                              S  C  S
Tstms                                                                   S  C  S
Obvis         PF PF                PF PF


Date          Sun 07/23/17  Mon 07/24/17  Tue 07/25/17  Wed 07/26/17
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          75    90      72    87      70    86      67    86
Temp          79 77 88 86   76 74 85 83   74 72 84 81   71 69 84 82
Dewpt         71 72 71 71   71 70 71 70   70 67 69 68   66 66 66 67
PWind Dir        SW    SW      SW    SW      SW    NW      NE    NE
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 B1 B1 B1   B2 B2 B2 B2   B1 B1 B2 B1   B1 SC SC B1
PoP 12hr         20    40      50    50      50    30      10    20
Rain shwrs     S  S  C  C    C  C  C  C    C  C  C  C          S  S
Tstms          S  S  C  C    C  C  C  C    C  C  C  C          S  S

$$

TNZ036-202100-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
355 AM EDT Thu Jul 20 2017

Date             Thu 07/20/17            Fri 07/21/17            Sat 07/22/17
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                      92          74          95          73          92
Temp          73 73 84 90 91 88 81 78 76 76 87 93 94 90 81 78 75 75 84 90 91 88
Dewpt         70 68 68 68 68 71 71 71 70 71 72 73 70 71 72 72 71 71 72 72 70 72
RH            90 84 59 49 47 57 72 79 82 85 61 52 46 54 74 82 87 87 67 56 50 59
Wind Dir      NW NW NW  N  N  W  W NW NE  W  S  S SW SW SW SW  S SW SW SW SW SW
Wind Spd       2  1  2  3  2  1  2  2  1  1  2  2  2  2  1  1  1  2  3  4  5  3
Clouds        FW FW SC SC SC FW CL CL CL FW FW SC SC SC SC SC SC SC SC B1 B1 B1
PoP 12hr                     10           0          10          10          30
QPF 12hr                      0           0           0           0        0.11
Rain shwrs                                                              S  C  S
Tstms                                                                   S  C  S


Date          Sun 07/23/17  Mon 07/24/17  Tue 07/25/17  Wed 07/26/17
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          75    90      72    88      69    87      67    86
Temp          79 77 88 86   76 74 86 83   73 71 85 82   71 69 84 82
Dewpt         71 71 71 71   72 70 70 70   70 67 68 68   67 65 65 67
PWind Dir        SW    SW      SW    SW       W    NW      NE    NE
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 SC B1 B1   B2 B2 B2 B1   B1 B1 B2 B1   B1 SC SC SC
PoP 12hr         20    40      50    50      40    30      10    20
Rain shwrs     S  S  C  C    C  C  C  C    C  C  C  C          S  S
Tstms          S  S  C  C    C  C  C  C    C  C  C  C          S  S

$$

TNZ099-202100-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
355 AM EDT Thu Jul 20 2017

Date             Thu 07/20/17            Fri 07/21/17            Sat 07/22/17
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                      92          75          96          75          93
Temp          76 75 84 90 91 88 81 79 77 77 88 94 95 91 83 80 77 77 86 91 92 89
Dewpt         71 70 71 70 71 72 73 74 72 72 72 71 69 69 72 71 72 72 72 70 71 73
RH            85 84 65 52 52 59 77 85 85 85 59 47 43 49 70 74 85 85 63 50 51 59
Wind Dir      NW  W  N  N  N  N SW  W NE  N NE  E  S  S  S  S SW  S SW SW SW SW
Wind Spd       2  0  2  4  2  1  1  1  1  2  2  2  4  3  1  1  1  2  3  4  5  4
Clouds        FW SC SC B1 B1 SC SC CL FW FW FW SC SC SC SC SC SC SC B1 B1 B1 B1
PoP 12hr                     30           5          10          10          30
QPF 12hr                   0.09           0           0           0        0.06
Rain shwrs              S  C                                            S  C  S
Tstms                   S  C                                            S  C  S
Obvis         PF PF                PF PF


Date          Sun 07/23/17  Mon 07/24/17  Tue 07/25/17  Wed 07/26/17
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          75    91      73    88      71    87      70    88
Temp          79 77 89 87   77 75 86 84   75 73 85 83   74 72 86 84
Dewpt         72 72 73 73   73 72 73 72   71 70 71 71   70 68 69 70
PWind Dir        SW    SW      SW    SW       W    NW       N    NE
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 SC B1 B2   B1 B2 B2 B2   B2 B2 B2 B2   B1 SC B1 SC
PoP 12hr         20    50      50    50      40    40      20    20
Rain shwrs     S  S  C  C    C  C  C  C    C  C  C  C    S     S  S
Tstms          S  S  C  C    C  C  C  C    C  C  C  C    S     S  S

$$

NCZ060-202100-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
355 AM EDT Thu Jul 20 2017

Date             Thu 07/20/17            Fri 07/21/17            Sat 07/22/17
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                      92          66          92          70          90
Temp          67 68 81 89 90 85 76 72 69 69 82 89 91 87 78 75 72 72 82 88 89 85
Dewpt         66 66 68 66 66 71 69 68 66 68 71 70 72 75 71 70 70 71 72 72 72 72
RH            97 93 65 47 45 63 79 87 90 97 69 54 54 68 79 84 93 97 72 59 57 65
Min/Max RH                   42         100          52         100          57
Wind Dir       E  E NW NW NW NW  N  E NE  N  N SW SW SW  E  S  S  S SW SW SW SW
Wind Dir Deg   7  7 31 31 32 30 34  7  5  2 33 21 21 21 11 17 16 19 23 23 22 22
Wind Spd       2  2  3  6  5  3  1  2  3  2  2  2  2  2  2  1  1  1  2  3  3  3
Clouds        CL FW CL SC SC SC FW FW FW FW FW B1 B1 B1 B1 SC SC SC B1 B1 B1 B1
Clouds (%)     3  7  3 27 31 31  8  8  6 25 25 51 51 53 53 30 30 38 58 53 58 59
Vsby           3  3 10 10 10  9  6  4
PoP 12hr                     10           5          20          10          30
QPF 12hr                      0           0        0.11           0        0.11
Rain shwrs                                      S  S                    S  C  S
Tstms                                           S  S                    S  C  S
Obvis         PF PF                PF PF
Haines                        4                       4
LAL               1     1     1     1     1     2     2     1     1     2     3
Max Mix Hgt                5900                    7400
AGL Mix Hgt                4200                    5700
Max Vent Rt               24200                   13200
T Wind Dir                   NW                      SE
T Wind Spd                    5                       2
ADI                          21                      11
Max LVORI                     5                       6
Stability         G     B     A     G     G     B     B     G     G     B     B
Ceiling        NONE  NONE  8000 23500 23500  7200  6300  6300  6300  6300  5500
Sta Pres      28.06 28.04 27.98 28.00 28.01 27.99 27.98 27.98 28.00 27.97 27.93


Date          Sun 07/23/17  Mon 07/24/17  Tue 07/25/17  Wed 07/26/17
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    87      69    85      68    85      66    84
Temp          74 72 85 83   73 71 83 81   72 70 83 80   70 68 82 80
Dewpt         70 70 70 71   70 69 71 70   68 68 69 69   66 66 67 69
PWind Dir        SW    SW      SW     W       W    NW      NE     N
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 B1 B1 B2   B1 B2 B2 B2   B2 B2 B2 B1   B1 B1 B1 B1
PoP 12hr         20    50      40    50      40    40      20    20
Rain shwrs     S  S  C  C    C  C  C  C    C  C  C  C    S  S  S  S
Tstms          S  S  C  C    C  C  C  C    C  C  C  C    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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