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

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Point Forecast Matrices
National Weather Service Morristown TN
643 AM EDT Wed Apr 17 2024

TNZ017-172000-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
643 AM EDT Wed Apr 17 2024

Date             Wed 04/17/24            Thu 04/18/24            Fri 04/19/24
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                      77          58          81          57          75
Temp             61 71 76 74 68 63 60 58 60 68 77 81 75 64 60 58 59 67 73 73 68
Dewpt            54 56 53 51 52 53 55 56 57 59 57 53 54 54 53 52 55 60 60 59 57
RH               78 59 45 44 57 70 84 93 90 73 50 38 48 70 78 80 87 78 64 62 68
Wind Dir         SE SW SW  W SW SW SW SW SW SW  W SW SE  E SE  S SW SW  W  W NW
Wind Spd          3  8 13 13 10  8  9  8  6  5  5  5  3  4  5  5  8  9 10 10 10
Clouds           OV B2 B2 OV B1 B1 B1 B1 B2 SC FW FW FW SC B1 B2 OV B2 B1 B1 B1
PoP 12hr                     20           5           0          40          80
QPF 12hr                   0.01           0           0        0.08        0.23
Rain shwrs        S     S  S                                C  C  D  D  L  L
Tstms                                                          S  S  S  C  C


Date          Sat 04/20/24  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24
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          51    68      43    61      42    65      43    69
Temp          57 51 65 62   48 44 58 57   47 43 61 59   46 45 66 64
Dewpt         51 45 42 37   37 37 41 40   38 38 42 42   40 41 45 47
PWind Dir         N    NW       N    NW       N    NW      SE    SW
Wind Char        GN    GN      LT    LT      LT    LT      LT    GN
Avg Clouds    B1 B1 SC SC   B1 B1 B1 B1   B1 SC SC SC   SC SC SC SC
PoP 12hr         10     5      10    40      20    20       5    20
Rain shwrs                         C  C    S        S             S

$$

TNZ071-172000-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
643 AM EDT Wed Apr 17 2024

Date             Wed 04/17/24            Thu 04/18/24            Fri 04/19/24
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                      76          61          84          62          76
Temp             66 74 76 73 71 65 63 62 62 71 81 84 79 69 65 64 63 69 73 75 70
Dewpt            56 55 53 57 58 58 59 59 60 62 61 58 60 59 58 58 60 64 64 62 60
RH               70 51 45 57 63 78 87 90 93 73 51 41 52 70 78 81 90 84 73 64 71
Wind Dir         SW SW SW SW SW SW SW SW SW SW  W  W SW  S SW SW SW  W  W NW  N
Wind Spd         10 17 18 14 11  9  6  5  4  5  5  5  4  5  5  8  9  9 10  9  9
Clouds           B2 B2 OV B2 B2 SC B1 B1 B1 FW CL CL FW SC B2 B2 OV B2 B1 B1 B2
PoP 12hr                     30           5           5          60          80
QPF 12hr                   0.16           0           0        0.32        0.21
Rain shwrs              C  C                                L  L  D  D  C  C
Tstms                   S  S                                S  C  C  C  C  C


Date          Sat 04/20/24  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24
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          53    69      47    62      46    67      45    72
Temp          59 54 66 64   52 47 59 59   50 46 63 62   49 48 70 68
Dewpt         54 48 45 42   41 40 43 43   41 41 44 45   44 44 48 50
PWind Dir         N     N       N     N       N     N      SE    SW
Wind Char        GN    GN      GN    LT      LT    GN      LT    GN
Avg Clouds    B2 B2 B1 B1   B1 B2 B2 B2   B1 B1 B1 SC   FW SC SC SC
PoP 12hr         10     5      20    40      10    10       5    10
Rain shwrs                      S  C  C

$$

TNZ036-172000-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
643 AM EDT Wed Apr 17 2024

Date             Wed 04/17/24            Thu 04/18/24            Fri 04/19/24
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                      75          61          85          62          76
Temp             66 73 74 74 70 65 62 62 62 70 81 85 79 69 65 63 62 69 73 75 69
Dewpt            55 55 56 57 58 59 59 60 60 62 61 58 57 57 57 59 60 64 64 60 57
RH               68 53 53 55 66 81 90 93 93 76 51 40 47 66 75 87 93 84 73 60 66
Wind Dir         SW SW SW SW SW SW SW SW SW SW SW SW SW  S SW SW SW SW  W NW  N
Wind Spd         10 16 14 13 10  9  6  5  5  5  5  6  5  5  5  6  6  8  8  9  9
Clouds           B1 B2 OV B2 B2 B1 B1 B1 B2 B1 FW CL FW SC B1 OV OV B2 B1 B1 B1
PoP 12hr                     50           5           5          60          70
QPF 12hr                   0.22           0           0        0.43        0.15
Rain shwrs           S  C  S                          S  S  L  L  L  L  C  C
Tstms                   C  S                          S     S  C  C  C  C  S


Date          Sat 04/20/24  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24
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          53    70      47    63      44    68      45    73
Temp          58 53 67 64   51 47 60 59   47 46 65 63   47 48 70 68
Dewpt         50 45 42 39   39 38 41 41   39 38 42 44   43 43 48 49
PWind Dir         N     N       N     N       N     N       W    SW
Wind Char        GN    GN      GN    GN      LT    GN      LT    GN
Avg Clouds    B1 B2 B1 B1   B1 B2 B2 B1   B1 SC SC SC   FW SC SC SC
PoP 12hr          5     5      20    40      10    10       5    10
Rain shwrs                      S  C  C

$$

TNZ099-172000-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
643 AM EDT Wed Apr 17 2024

Date             Wed 04/17/24            Thu 04/18/24            Fri 04/19/24
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                      78          63          86          64          79
Temp             66 75 78 75 74 68 66 64 64 73 83 86 80 71 67 66 64 71 77 78 73
Dewpt            56 56 58 62 62 62 61 62 62 64 63 60 61 62 61 62 63 65 64 62 59
RH               70 52 50 64 66 81 84 93 93 73 51 42 52 73 81 87 97 81 64 58 62
Wind Dir          S  S SW SW  S  S  S  S  S  S  S  S  S  S SW SW SW SW  W NW  N
Wind Spd          9 12 11 10  6  5  3  3  2  4  6  9  8  5  8  8  5  8  9 10 10
Clouds           OV OV B2 OV B2 B2 B1 B1 B1 B1 FW FW SC B1 SC B2 OV B1 B1 B1 B1
PoP 12hr                     60           5          10          60          60
QPF 12hr                   0.47           0           0        0.36        0.08
Rain shwrs           S  L  C                          S  S  L  L  L  L  C  C
Tstms                   C  C                          S     C  C  C  C  C  C
Obvis                                    PF


Date          Sat 04/20/24  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24
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          56    73      50    64      47    72      48    75
Temp          62 57 70 67   55 50 61 60   50 47 68 66   52 49 72 70
Dewpt         54 49 45 42   41 41 43 44   43 41 44 46   45 45 48 52
PWind Dir         N     N       N     N       N     N      SW    SW
Wind Char        GN    GN      GN    GN      LT    GN      LT    GN
Avg Clouds    B1 B1 B1 B1   B1 B2 B2 B2   B1 SC SC FW   FW FW SC SC
PoP 12hr          5     5      20    50      20     5       5    10
Rain shwrs                      S  C  C    S
Tstms                                 S

$$

NCZ060-172000-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
643 AM EDT Wed Apr 17 2024

Date             Wed 04/17/24            Thu 04/18/24            Fri 04/19/24
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                      76          56          86          57          77
Temp             62 71 75 72 66 62 58 57 58 70 82 85 78 66 60 58 59 67 74 76 71
Dewpt            54 53 49 52 57 57 57 57 57 61 56 53 56 56 56 56 59 63 63 61 60
RH               75 53 40 49 73 84 96100 96 73 41 33 47 70 87 93100 87 69 60 68
Min/Max RH                   39         100          33         100          60
Wind Dir         SE SW SW SW  S SE  N  N  N SW SW SW SW  S  S  N  N  W  W NW NW
Wind Dir Deg     15 20 21 21 18 14  0  0  0 21 21 21 22 16 17  0  0 24 27 29 30
Wind Spd          5 11 12 10  5  2  0  0  0  2  4  6  5  3  3  0  0  5  8  9 10
Clouds           B2 OV OV OV B2 B2 B1 B1 B1 SC FW FW FW SC B1 B2 OV B2 B1 B1 B1
Clouds (%)       79 89 92 93 79 77 61 63 59 27  6  6 15 43 52 72 88 79 59 61 62
Vsby             10 10 10 10 10  7  7  7  7
PoP 12hr                     50          10           5          50          80
QPF 12hr                   0.37           0           0        0.28        0.14
Rain shwrs                 C                          S  S  C  C  D  D  L  L
Tstms                      S                          S     S  C  C  C  C  C
Obvis                                                            PF
Haines                        5                       5                       3
LAL               1     1     2     1     1     1     2     2     3     3     3
Max Mix Hgt
AGL Mix Hgt                4200                    6400                    3300
Max Vent Rt               87300                   44000                   45300
T Wind Dir                   SW                      SW                       W
T Wind Spd                   14                       4                      11
ADI                          76                      38                      39
Max LVORI                     4                       9                      10
Stability         E     C     B     F     F     A     B     F     D     B     B
Ceiling        NONE  NONE  NONE  NONE     0  NONE  NONE  NONE  NONE  NONE  NONE
Sta Pres      27.99 27.94 27.95 27.96 27.98 27.95 27.89 27.90 27.91 27.88 27.89


Date          Sat 04/20/24  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24
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          52    72      45    63      45    67      43    73
Temp          58 52 69 64   49 46 60 57   48 45 63 61   47 44 70 66
Dewpt         56 52 48 43   41 42 46 46   44 44 46 45   42 42 46 48
PWind Dir        NW    NW       N    NW      NW    NW       E    SW
Wind Char        LT    GN      LT    LT      LT    GN      LT    GN
Avg Clouds    B1 B1 B1 B1   B1 B2 B2 B2   B2 B2 B2 SC   FW FW FW SC
PoP 12hr          5    10      20    50      20    10       5    10
Rain shwrs                      S  C  C    S
Tstms                                 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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