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

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Point Forecast Matrices
National Weather Service Morristown TN
303 PM EDT Thu Apr 27 2017

TNZ017-280900-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
303 PM EDT Thu Apr 27 2017

Date           04/27/17      Fri 04/28/17            Sat 04/29/17            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                      52          87          59          87          64
Temp          73 69 64 58 55 57 73 81 86 75 68 64 61 65 77 84 87 78 71 68 66 65
Dewpt         60 60 57 55 51 52 53 54 54 55 61 61 58 61 63 61 62 64 63 63 62 63
RH            64 73 78 90 86 83 49 39 34 50 78 90 90 87 62 46 43 62 76 84 87 93
Wind Dir      SW  S  W  W NW  N SE  S  S  S  S  S  S  S SW SW SW  S SE  S SE SE
Wind Spd       5  5  2  1  1  1  1  5  9  8  8  6  4  4  8 11 11  8  6  6  5  5
Clouds        B2 SC FW FW FW FW FW FW FW SC FW SC SC SC FW SC SC SC SC B1 B1 B1
PoP 12hr                     20          10          10          20          20
QPF 12hr                   0.01           0           0        0.03        0.04
Rain shwrs     C  S                                         S  S  S  S  S  S  S
Tstms          C  S                                         S  S  S  S  S  S  S
Obvis                     PF PF


Date           04/30  Mon 05/01/17  Tue 05/02/17  Wed 05/03/17  Thu 05/04/17
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    73      49    71      50    72      50    67
Temp          79 76   67 64 71 66   53 50 67 65   53 53 69 66   55 52 65 62
Dewpt         61 61   60 60 59 48   43 43 41 48   49 50 49 49   49 48 51 51
PWind Dir         S      SE     S       W     W       W     W       N     S
Wind Char        GN      GN    GN      GN    GN      LT    LT      LT    LT
Avg Clouds    B1 B1   SC B2 OV B2   SC SC SC FW   SC B1 B1 B1   B1 B2 B2 B2
PoP 12hr         20      50    60      20    10      20    20      30    50
Rain shwrs     S  S    C  C  L  L    S  S          S  S  S  S    C  C  C  C
Tstms          S  S    C  C  L  L

$$

TNZ071-280900-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
303 PM EDT Thu Apr 27 2017

Date           04/27/17      Fri 04/28/17            Sat 04/29/17            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                      55          84          65          88          67
Temp          71 69 62 59 56 58 71 79 83 78 72 69 67 68 78 86 87 80 73 72 69 68
Dewpt         62 59 58 55 54 56 58 60 60 61 63 63 62 64 64 64 63 65 63 63 62 63
RH            73 70 87 87 93 93 63 52 46 56 73 81 84 87 62 48 45 60 71 73 78 84
Wind Dir      SW  W SW NW  N NE SE SW SW SW  S  S SW  S SW SW SW  S  S  S  S  S
Wind Spd      10  6  1  1  1  3  6 12 14 10 10  8  8  9 12 14 14 10  6  8  8  9
Clouds        SC FW FW FW FW FW FW FW FW SC SC B1 SC B1 FW SC SC B1 SC B2 SC B1
PoP 12hr                      0          10          10          10          10
QPF 12hr                      0           0           0           0           0
Rain shwrs     S                                                              S
Tstms          S                                                              S
Obvis                     PF PF


Date           04/30  Mon 05/01/17  Tue 05/02/17  Wed 05/03/17  Thu 05/04/17
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    73      52    74      55    75      55    70
Temp          81 78   69 66 72 67   55 52 70 68   58 57 73 69   60 57 68 65
Dewpt         64 63   60 59 48 48   46 45 45 50   50 51 52 51   52 51 55 53
PWind Dir         S       S    SW      SW    SW      SW    SW       N     E
Wind Char        GN      GN    BZ      GN    GN      LT    LT      LT    LT
Avg Clouds    B1 SC   B1 B1 OV SC   SC FW SC SC   SC B1 B1 B1   B2 B2 B2 OV
PoP 12hr         20      40    60      10    10      10    20      40    50
Rain shwrs     S  S    C  C  L  L                        S  S    C  C  C  C
Tstms          S  S    C  C  L  L

$$

TNZ036-280900-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
303 PM EDT Thu Apr 27 2017

Date           04/27/17      Fri 04/28/17            Sat 04/29/17            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                      55          87          66          88          67
Temp          72 69 61 57 56 57 71 82 86 79 72 69 67 68 77 85 87 82 73 72 69 68
Dewpt         59 58 57 56 54 55 58 60 60 61 64 64 63 64 64 64 64 65 64 63 63 63
RH            64 68 87 96 93 93 63 47 42 54 76 84 87 87 64 50 46 56 73 73 81 84
Wind Dir      SW  W  N  S NE  E  S  S  S SW  S  S SW  S  S  S  S  S  S  S  S  S
Wind Spd       8  3  0  0  1  1  3 11 11  9  8  9  5  6  9 11 10  8  5  5  5  5
Clouds        SC FW FW FW FW FW FW SC FW SC SC B1 SC B1 FW SC SC B1 B1 B1 SC B1
PoP 12hr                      0          10          10          10          10
QPF 12hr                      0           0           0           0           0
Rain shwrs                                                                    S
Tstms                                                                         S
Obvis                     PF PF


Date           04/30  Mon 05/01/17  Tue 05/02/17  Wed 05/03/17  Thu 05/04/17
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      64    73      51    74      54    75      53    70
Temp          81 78   68 65 72 66   55 51 70 68   57 57 73 69   58 55 68 65
Dewpt         63 64   60 59 46 46   45 44 44 49   51 51 50 50   52 50 54 52
PWind Dir         S       S    SW      SW    SW       W     W       N     N
Wind Char        GN      GN    BZ      GN    GN      LT    LT      LT    LT
Avg Clouds    B1 SC   B1 B2 OV SC   SC FW SC SC   SC B1 B1 B2   B2 B2 B2 OV
PoP 12hr         20      50    60      10    10      10    20      40    50
Rain shwrs     S  S    C  C  L  L                        S  S    C  C  C  C
Tstms          S  S    C  C  L  L

$$

TNZ099-280900-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
303 PM EDT Thu Apr 27 2017

Date           04/27/17      Fri 04/28/17            Sat 04/29/17            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                      57          85          66          87          68
Temp          76 72 63 59 58 59 70 81 84 78 73 69 68 69 78 85 87 81 73 71 70 69
Dewpt         58 57 57 57 56 58 61 63 65 65 66 65 66 65 65 66 65 66 64 65 65 63
RH            54 59 81 93 93 96 73 54 53 64 79 87 93 87 64 53 48 60 73 81 84 81
Wind Dir       W  W  W  W  N  E  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
Wind Spd       9  4  1  0  2  0 10 12 12  9  9  9  8  6 12 13 14  9  6  8  8  8
Clouds        SC FW FW FW FW SC B1 B1 B1 B1 B1 B1 SC B1 SC B1 SC B1 SC SC SC SC
PoP 12hr                     10          20          10          10          10
QPF 12hr                      0        0.01           0           0           0
Rain shwrs                          S  S                                      S
Tstms                               S  S                                      S
Obvis                     PF PF


Date           04/30  Mon 05/01/17  Tue 05/02/17  Wed 05/03/17  Thu 05/04/17
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      62    73      52    77      55    78      56    71
Temp          81 78   67 64 71 67   55 52 73 71   58 58 75 72   61 58 69 66
Dewpt         64 64   61 59 47 48   46 47 45 53   53 53 51 53   51 53 55 54
PWind Dir         S       S    SW      SW     W       S     S       E    NE
Wind Char        GN      GN    GN      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 B1   B1 OV OV SC   SC FW FW SC   SC SC SC B1   B2 B2 OV OV
PoP 12hr         20      60    50      10    10      10    20      40    50
Rain shwrs     S  S    L  L  C  C                        S  S    C  C  C  C
Tstms          S  S    L  L  C  C

$$

NCZ060-280900-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
303 PM EDT Thu Apr 27 2017

Date           04/27/17      Fri 04/28/17            Sat 04/29/17            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                      53          86          62          85          64
Temp          73 68 60 56 54 56 70 81 85 74 68 64 64 65 77 84 84 77 70 67 65 65
Dewpt         63 59 56 55 53 54 56 59 61 61 63 62 62 63 63 64 64 63 63 63 62 62
RH            71 73 87 96 96 93 61 47 45 64 84 93 93 93 62 51 51 62 78 87 90 90
Max/Min RH                  100          45          97          50          90
Wind Dir      SW  W  E NE NW  E SW SW SW  S SE  S  S SE  S  S  S SE  S SE SE  S
Wind Dir Deg  20 25  8  5 31  9 23 21 21 17 15 16 17 15 19 18 18 15 16 15 15 16
Wind Spd       5  4  1  1  1  2  6  9  6  8  8  9  4  6  9 11 11  8  6  8  6  9
Clouds        B1 FW FW FW FW SC SC SC SC SC B1 B1 SC B1 SC SC SC B1 B2 B1 B1 B1
Clouds (%)    52 21 22 17 22 30 33 38 46 42 55 62 50 65 31 40 48 66 72 66 57 59
Vsby          10 10 10  6  3  3 10 10
PoP 12hr                     10          20          10          20          20
QPF 12hr                      0        0.01           0        0.07        0.04
Rain shwrs     C                    S  S                    S  S  S  S  S  S  C
Tstms          C                    S  S                    S  S  S  S  S  S  C
Obvis                     PF PF
Haines                                    4                       4
LAL               3     1     1     2     2     1     1     2     2     2     3
Max Mix Hgt                            5700                    7500
AGL Mix Hgt                            4000                    5900
Max Vent Rt                           78400                  134600
T Wind Dir                                S                       S
T Wind Spd                               19                      23
ADI                                      68                     117
Max LVORI                                 4                       4
Stability         A     G     G     B     B     E     E     B     B     E     E
Ceiling        5500  NONE  NONE  NONE  3200  NONE 23500  NONE  4700  3200  2400
Sta Pres      27.76 27.85 27.90 27.94 27.97 28.01 28.08 28.05 28.00 28.00 27.99


Date           04/30  Mon 05/01/17  Tue 05/02/17  Wed 05/03/17  Thu 05/04/17
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          81      62    73      49    73      51    76      55    69
Temp          77 75   66 64 71 66   53 50 69 67   54 54 73 70   60 57 67 65
Dewpt         64 62   60 59 49 48   46 45 43 49   49 50 51 52   52 52 56 55
PWind Dir         S       S    SW       W     W      SW     W       E     N
Wind Char        GN      GN    GN      LT    GN      LT    LT      LT    LT
Avg Clouds    B1 B1   B1 B2 OV SC   SC FW FW SC   SC SC SC B1   B2 B2 B2 OV
PoP 12hr         30      40    60      10    10      10    30      30    50
Rain shwrs     C  C    C  C  L  L                        C  C    C  C  C  C
Tstms          C  C    C  C  L  L

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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