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

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Point Forecast Matrices
National Weather Service Morristown TN
253 PM EDT Mon Aug 21 2017

TNZ017-220900-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
253 PM EDT Mon Aug 21 2017

Date           08/21/17      Tue 08/22/17            Wed 08/23/17            Thu
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                      65          90          69          81          61
Temp          90 81 71 68 67 67 81 87 89 84 77 74 72 70 76 80 80 75 68 65 63 63
Dewpt         64 66 67 66 66 66 68 68 68 68 69 68 68 69 71 71 68 67 65 63 59 60
RH            42 60 87 93 97 97 65 53 50 59 76 82 87 97 85 74 67 76 90 93 87 90
Wind Dir      SW  S  S  S  S  S SW SW SW  W SW SW SW SW  W  W NW NW  N NE NE NE
Wind Spd       3  1  0  0  0  0  4  9  9  5  3  3  2  2  4  5  4  4  2  1  2  1
Clouds        SC SC FW FW FW FW SC SC SC SC B1 B2 OV OV OV OV B2 B2 B1 B1 SC SC
PoP 12hr                      5          20          50          70          30
QPF 12hr                      0        0.01        0.07        0.19        0.02
Rain shwrs                             S  C  C  C  C  L  L  L  L  C  C  S
Tstms                                  S  C  C  C  C  L  L  L  L  C  C  S
Obvis                     PF


Date           08/24  Fri 08/25/17  Sat 08/26/17  Sun 08/27/17  Mon 08/28/17
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          80      58    80      59    78      60    79      60    78
Temp          78 74   63 60 78 74   64 61 76 73   64 62 77 73   64 61 76 73
Dewpt         57 58   56 57 57 60   59 60 62 64   61 59 62 61   58 57 60 60
PWind Dir         N      NE     N       E     N      SE     S      SE    SE
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    SC FW   FW FW FW SC   SC SC SC B1   B1 SC B1 B1   B1 B2 B2 B1
PoP 12hr         10       5     5       5    10       5    30      30    30
Rain shwrs                                               C  C    C  C  C  C
Tstms                                                    C  C    C  C  C  C

$$

TNZ071-220900-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
253 PM EDT Mon Aug 21 2017

Date           08/21/17      Tue 08/22/17            Wed 08/23/17            Thu
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                      71          92          72          83          65
Temp          90 85 76 74 73 73 82 90 91 86 79 76 74 73 78 82 82 78 72 69 67 66
Dewpt         65 66 69 69 69 70 70 69 67 69 70 70 70 70 71 71 70 69 67 66 62 62
RH            44 53 79 84 87 90 67 50 45 57 74 82 87 90 79 69 67 74 84 90 84 87
Wind Dir       W  S  S  S  S SW SW SW SW SW SW SW SW SW  W  W NW  N  N NE NE NE
Wind Spd       5  4  1  1  1  1  5  9  9  6  5  5  3  4  4  6  5  4  3  3  4  5
Clouds        FW FW FW FW FW FW FW SC SC SC B1 B2 B2 OV OV OV B2 B2 SC B1 SC SC
PoP 12hr                      5          20          50          70          30
QPF 12hr                      0        0.01        0.06        0.21        0.02
Rain shwrs                             S  C  C  C  C  L  L  L  L  S  S  C
Tstms                                  S  C  C  C  C  L  L  L  L  S  S  C
Obvis                     PF


Date           08/24  Fri 08/25/17  Sat 08/26/17  Sun 08/27/17  Mon 08/28/17
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          83      62    83      63    83      64    81      64    79
Temp          81 77   67 64 81 77   67 65 81 77   68 65 79 76   68 65 77 75
Dewpt         61 59   59 59 61 61   61 61 64 65   63 62 64 64   62 61 62 64
PWind Dir        NE      NE    NE      NE     N      NE     S      SE    SE
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    SC FW   FW FW SC SC   SC SC SC B1   B1 SC B1 B1   B1 B2 B2 B2
PoP 12hr          5       5     5       5    10      10    40      30    20
Rain shwrs                                               C  C    C  C  S  S
Tstms                                                    C  C    C  C  S  S

$$

TNZ036-220900-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
253 PM EDT Mon Aug 21 2017

Date           08/21/17      Tue 08/22/17            Wed 08/23/17            Thu
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                      71          91          72          82          64
Temp          90 85 75 73 73 73 80 89 90 85 79 76 74 73 78 81 81 77 71 68 66 66
Dewpt         66 68 70 70 69 70 71 71 70 71 71 70 70 70 71 71 69 68 66 64 60 61
RH            45 57 84 90 87 90 74 56 52 63 77 82 87 90 79 72 67 74 84 87 81 84
Wind Dir       S  S  S  S SW SW SW SW SW SW  W  W SW  W  W  W NW  N  N  N  N NE
Wind Spd       3  1  0  0  0  0  3  5  5  4  2  2  2  2  3  3  3  2  2  3  3  3
Clouds        FW FW FW FW FW FW FW SC SC SC SC B2 B2 OV OV OV B2 B2 SC SC FW FW
PoP 12hr                      5          20          50          70          20
QPF 12hr                      0        0.02        0.12        0.13        0.02
Rain shwrs                          S  S  C  C  C  C  L  L  L  C  S  S  S
Tstms                               S  S  C  C  C  C  L  L  L  C  S  S  S


Date           08/24  Fri 08/25/17  Sat 08/26/17  Sun 08/27/17  Mon 08/28/17
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          83      61    83      62    83      63    82      64    80
Temp          81 77   66 63 81 77   67 64 81 77   67 65 80 77   68 65 78 76
Dewpt         59 59   58 58 60 62   61 61 64 65   63 62 64 65   62 62 63 63
PWind Dir        NE      NE    NE      NE     N      NE    SW      SW     S
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    FW FW   FW FW FW FW   SC SC SC B1   B1 B1 B1 B1   B1 B2 B2 B2
PoP 12hr          5       5     5       5    10      10    40      30    30
Rain shwrs                                               C  C    C  C  C  C
Tstms                                                    C  C    C  C  C  C

$$

TNZ099-220900-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
253 PM EDT Mon Aug 21 2017

Date           08/21/17      Tue 08/22/17            Wed 08/23/17            Thu
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          93          74          86          68
Temp          92 88 79 76 75 75 83 91 92 87 81 78 76 75 81 85 85 81 75 72 70 69
Dewpt         67 67 69 70 70 71 72 70 69 69 71 71 71 72 72 71 70 70 69 68 65 64
RH            44 50 72 82 84 87 70 50 47 55 72 79 85 90 74 63 61 69 82 87 84 84
Wind Dir       S SE SE  S  S  S SW  W SW  W SW SW  W  W NW NW NW  N  N  N  N  N
Wind Spd       4  2  0  0  0  0  2  5  8  4  2  2  2  2  3  4  4  4  3  4  5  4
Clouds        SC FW FW FW FW FW FW SC SC SC SC B1 B2 B2 B2 OV B2 B2 B1 B1 SC SC
PoP 12hr                      5          20          30          70          20
QPF 12hr                      0        0.02        0.05        0.39        0.02
Rain shwrs     S                    S  S  C  C  C  C  L  L  L  L  S  S  S
Tstms          S                    S  S  C  C  C  C  L  L  L  L  S  S  S
Obvis                     PF


Date           08/24  Fri 08/25/17  Sat 08/26/17  Sun 08/27/17  Mon 08/28/17
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          85      65    86      65    86      67    82      67    82
Temp          83 79   69 67 84 80   70 67 84 80   71 68 80 78   70 68 80 77
Dewpt         62 61   61 61 62 63   63 62 64 65   66 63 64 64   63 61 63 65
PWind Dir         N       N    NE      NE     E       E    SE      SE    SE
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    SC FW   FW FW SC SC   SC SC B1 B1   SC B1 B2 B1   B1 B2 B2 B2
PoP 12hr          5       5     5       0    20      10    40      30    40
Rain shwrs                                 S  S          C  C    C  C  C  C
Tstms                                      S  S          C  C    C  C  C  C

$$

NCZ060-220900-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
253 PM EDT Mon Aug 21 2017

Date           08/21/17      Tue 08/22/17            Wed 08/23/17            Thu
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                      65          89          68          83          65
Temp          91 81 70 68 67 67 80 86 88 83 76 73 71 69 76 81 82 78 72 69 67 66
Dewpt         68 69 70 68 67 67 72 71 70 71 69 69 68 69 71 70 70 71 67 66 64 65
RH            47 67100100100100 77 61 55 67 79 87 90100 85 69 67 79 84 90 90 97
Max/Min RH                  100          55         100          67          97
Wind Dir      SW  W  E  E  E  E  S SW  W SW  S  S  W  W NW NW NW NW  N  N  N  N
Wind Dir Deg  21 28  8  8  8  9 18 23 24 22 18 19 28 27 29 29 30 31  0  0  2  2
Wind Spd       4  2  0  0  1  1  1  6  6  3  2  1  1  1  2  4  3  2  2  1  1  1
Clouds        SC FW FW FW FW FW SC SC SC SC SC B1 B1 B2 B2 B2 B2 B2 B1 B2 B1 B1
Clouds (%)    36 24 21 20 20 20 26 40 50 37 43 51 59 74 79 83 81 85 53 73 66 57
Vsby          10 10  7  5  3  2 10 10
PoP 12hr                      5          30          20          60          40
QPF 12hr                      0        0.02        0.02        0.39        0.05
Rain shwrs     S                    C  C  S  S  S  S  L  L  L  L  C  C  C  S  S
Tstms          S                    C  C  S  S  S  S  L  L  L  L  C  C  C  S  S
Obvis                     PF
Haines                                    4                       3
LAL               2     1     1     3     3     2     4     4     4     3     3
Max Mix Hgt                            7200                    3700
AGL Mix Hgt                            5500                    2000
Max Vent Rt                           50300                   11400
T Wind Dir                                W                      NW
T Wind Spd                                9                       5
ADI                                      44                      10
Max LVORI                                 4                       8
Stability         A     G     G     B     A     F     F     B     B     F     F
Ceiling        6300  6300  6300  7200  6300  5500  8000  5500  6300  NONE  1700
Sta Pres      28.07 28.06 28.07 28.01 27.95 27.94 27.91 27.90 27.86 27.86 27.87


Date           08/24  Fri 08/25/17  Sat 08/26/17  Sun 08/27/17  Mon 08/28/17
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          83      62    83      62    82      62    79      62    78
Temp          81 77   67 64 81 77   67 64 80 76   66 63 77 74   66 63 76 73
Dewpt         66 64   62 62 64 66   61 62 64 66   63 61 63 63   59 58 60 63
PWind Dir         N      NE     N      NE    SE      SE    SE      SE    SE
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 SC   SC SC SC SC   SC SC B1 B1   B1 B1 B1 B1   B1 B2 B2 B2
PoP 12hr         20      20    10       0    20      10    30      20    30
Rain shwrs     S  S    S                   S  S          C  C    S  S  C  C
Tstms          S  S    S                   S  S          C  C    S  S  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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