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

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Point Forecast Matrices
National Weather Service Morristown TN
1028 PM EDT Fri Apr 20 2018

TNZ017-210900-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
1028 PM EDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      32          70          43          71          46
Temp                47 39 35 34 54 64 69 63 55 50 47 44 58 67 70 65 57 53 49 47
Dewpt               25 28 28 30 34 34 33 36 39 37 38 39 40 40 40 40 40 41 41 41
RH                  42 64 75 85 46 32 26 36 55 61 71 82 51 37 33 40 53 64 74 79
Wind Dir            NE NE  E  E SE  S  W NE  E SE SE  E SE SE SE SE SE SE  E  E
Wind Spd             4  3  3  3  4  3  1  2  3  5  4  4  6  8  8 10  9 10 11  8
Clouds              CL CL CL CL CL CL FW FW FW SC SC SC B1 B1 B2 B2 B2 OV OV OV
PoP 12hr                      0           0           0           5          40
QPF 12hr                      0           0           0           0        0.06
Rain shwrs                                                              C  C  C
Frost                      Y  Y


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          61      46    66      49    65      47    63      44    66
Temp          59 57   50 47 63 62   53 50 62 61   52 48 60 58   49 45 62 59
Dewpt         45 46   44 45 47 50   49 49 51 51   47 45 48 46   46 45 46 45
PWind Dir         E       E     E      SE     W       W     W      SW    SW
Wind Char        GN      GN    GN      LT    GN      LT    GN      LT    LT
Avg Clouds    OV OV   OV OV OV OV   OV OV OV B2   B2 B2 B2 B2   B1 B1 B1 B1
PoP 12hr         70      60    60      40    50      40    40      20    40
Rain shwrs     C  L    L  L  L  L    C  C  C  C    C  C  C  C    S  S  C  C

$$

TNZ071-210900-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
1028 PM EDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      39          71          48          68          50
Temp                53 45 41 40 58 66 70 65 58 54 51 49 59 65 67 64 58 55 52 51
Dewpt               32 33 35 36 38 37 38 41 42 41 42 43 46 47 48 47 48 46 48 47
RH                  44 62 79 85 47 34 31 41 55 61 71 80 62 52 50 54 69 72 86 86
Wind Dir            NE NE  E  E  E NE  N NE  E SE SE  E  E  E  E  E  E NE  E  E
Wind Spd             5  4  2  2  2  4  2  3  3  4  2  1  4  6  6  8  9 12  8  8
Clouds              CL CL CL CL CL FW FW FW SC B1 B1 B2 B2 OV OV OV OV OV OV OV
PoP 12hr                      0           0           0          20          70
QPF 12hr                      0           0           0        0.09        0.47
Rain shwrs                                                  S  S  C  C  L  L  L


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          62      51    66      52    67      49    66      47    68
Temp          60 59   54 52 64 63   56 53 65 63   54 50 63 61   52 48 65 62
Dewpt         50 50   48 49 52 53   52 51 53 51   47 47 49 50   47 46 47 47
PWind Dir         E      NE    NE       N     W      NW     W      SW    SW
Wind Char        GN      LT    LT      LT    LT      LT    LT      LT    GN
Avg Clouds    OV OV   OV OV OV OV   OV B2 B2 B2   B2 B1 B2 B1   B1 SC B1 B1
PoP 12hr         70      50    70      30    40      30    20      20    30
Rain shwrs     L  L    C  C  L  L    C  C  C  C    C  C  S  S    S  S  C  C

$$

TNZ036-210900-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
1028 PM EDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      39          71          48          67          49
Temp                54 44 41 39 57 66 70 65 58 54 51 49 58 64 66 63 57 54 51 50
Dewpt               30 33 35 36 37 36 37 40 41 43 43 44 45 46 48 48 49 46 48 48
RH                  40 65 79 89 47 33 30 40 53 66 74 83 62 52 52 58 75 74 89 93
Wind Dir            NE NE NE NE  E SE SE  E NE  E  E NE NE  E  E  E  E NE  E  E
Wind Spd             3  4  3  3  2  3  2  2  2  2  1  2  4  8  8  9  9 11  9  5
Clouds              CL CL CL CL FW FW FW SC SC B1 B1 B2 OV B2 OV OV OV OV OV OV
PoP 12hr                      0           0           0          30          60
QPF 12hr                      0           0           0        0.14        0.62
Rain shwrs                                                  C  C  C  C  L  L  L


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          62      50    66      52    67      48    66      46    68
Temp          60 59   53 51 63 63   56 53 65 62   53 49 63 61   51 47 64 62
Dewpt         51 50   48 49 52 53   51 51 53 50   47 47 49 49   47 46 47 46
PWind Dir         E      NE    NE       N    NW       W     W      SW     W
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    OV OV   OV OV OV OV   OV B2 B2 B2   B2 B1 B2 B1   B1 SC B1 B1
PoP 12hr         70      50    60      30    40      30    20      20    20
Rain shwrs     L  L    C  C  L  L    C  C  C  C    C  C  S  S    S  S  S  S

$$

TNZ099-210900-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
1028 PM EDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      41          73          51          64          52
Temp                52 46 43 41 59 68 72 68 61 57 54 52 58 62 63 61 57 55 54 53
Dewpt               38 36 36 37 38 36 37 40 41 43 44 45 48 49 49 48 49 48 50 49
RH                  59 68 76 85 45 31 28 36 48 59 69 77 69 62 60 62 75 77 86 86
Wind Dir            NW NE NE  N SE SE SE  S  S SE  E SE  E  E  E  E NE  E  E  E
Wind Spd             2  3  2  2  8  9  8  3  3  5  4  5  8 10  9 11 10  4  9  6
Clouds              CL CL CL CL CL FW FW FW SC B2 OV OV OV OV OV OV OV OV OV OV
PoP 12hr                      0           0          20          80          90
QPF 12hr                      0           0        0.01        0.52        0.77
Rain shwrs                                         S  L  L  D  D  D  D  D  D  L
Tstms                                                                         S


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          64      53    67      52    68      49    68      48    70
Temp          62 61   56 54 65 63   56 53 65 63   54 50 65 63   53 49 66 64
Dewpt         52 52   50 50 52 53   50 50 50 49   46 45 49 49   47 46 45 47
PWind Dir         E      NE    NE       N    NW      NW    NW      NW     W
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    OV OV   OV OV OV OV   B2 B2 B2 B2   B1 B1 B1 B1   SC SC SC B1
PoP 12hr         70      50    50      30    40      20    20      10    30
Rain shwrs     L  L    C  C  C  C    C  C  C  C    S  S  S  S          C  C
Tstms          S  S

$$

NCZ060-210900-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
1028 PM EDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      38          71          46          63          47
Temp                47 45 41 39 57 66 70 65 57 53 49 47 55 60 62 59 54 51 49 48
Dewpt               32 33 33 35 37 36 37 39 38 38 41 42 45 44 45 43 46 46 47 47
RH                  56 62 73 85 47 33 30 38 49 57 74 83 69 55 54 55 74 83 93 96
Max/Min RH                   85          30          83          51          96
Wind Dir             N SE  E SE SE SE SE SE SE SE SE SE SE  E  E  E  E  E  E  E
Wind Dir Deg        33 12 11 12 13 14 15 15 12 12 12 13 12 11 11 11 11 11 11 10
Wind Spd             3  3  3  4  8  8  5  5  5  8 10  9 11 13 13 14 18 20 12 10
Wind Gust                                                              31
Clouds              CL CL CL CL CL CL FW FW SC B2 B2 B2 OV OV OV OV OV OV OV OV
Clouds (%)           0  0  0  0  0  5 14 17 33 72 82 84 94 98 99 99 99100100 94
Vsby                10 10 10 10 10 10
PoP 12hr                      0           0          10          70          90
QPF 12hr                      0           0           0        0.11        0.72
Rain shwrs                                            C  C  L  L  D  D  D  D  L
Haines                                    5                       2
LAL                     1     1     1     1     1     1     1     1     1     1
Max Mix Hgt                            5400                    5100
AGL Mix Hgt                            3700                    3400
Max Vent Rt                           34000                   77600
T Wind Dir                               SE                      SE
T Wind Spd                                9                      23
ADI                                      30                      67
Max LVORI                                 4                       3
Stability               G     G     B     B     E     D     D     D     D     D
Ceiling              NONE  NONE  NONE  NONE 20800 17100  8000  6300  9800  3200
Sta Pres            28.23 28.22 28.21 28.16 28.19 28.15 28.13 28.06 28.03 27.97


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          61      50    65      50    66      46    66      43    66
Temp          59 58   53 51 63 61   54 51 63 61   51 47 63 60   49 44 62 60
Dewpt         48 47   48 49 50 52   50 50 49 49   46 46 46 46   45 44 45 45
PWind Dir         E       E     E       N    NW      NW    NW       W    SW
Wind Char        GN      GN    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    OV OV   OV OV OV OV   OV B2 B2 B2   B2 B1 B2 B1   SC SC B1 B1
PoP 12hr         70      60    70      30    40      20    20      10    40
Rain shwrs     L  L    L  L  L  L    C  C  C  C    S  S  S  S          C  C
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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