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

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Point Forecast Matrices
National Weather Service Morristown TN
330 PM EDT Mon Apr 23 2018

TNZ017-240900-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
330 PM EDT Mon Apr 23 2018

Date           04/23/18      Tue 04/24/18            Wed 04/25/18            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                      51          67          51          65          45
Temp          61 57 57 54 53 52 60 63 66 63 58 54 52 52 59 63 65 60 54 49 47 46
Dewpt         47 49 49 50 50 51 53 56 55 53 52 50 51 50 51 52 51 50 49 48 45 46
RH            60 75 75 86 89 96 78 78 68 70 80 86 96 93 75 67 60 69 83 96 93100
Wind Dir       E  E  E  E  E  E SE  S  W SW SW  W  W  W  W  W NW NW NW  N  N  N
Wind Spd      17 14 17 14 11  9  9  3  6  3  3  4  4  5  8  6  8  5  3  2  2  2
Clouds        B2 B1 B1 B2 OV OV OV OV OV OV OV OV OV OV B2 OV B2 B2 B1 B2 B1 B2
PoP 12hr                     40          60          50          50          40
QPF 12hr                   0.02        0.28        0.11        0.05        0.02
Rain shwrs     C  S  S  C  C  C  C  L  L  C  C  C  C  C  C  C  C  C  C  S  S
Wind           Y  Y  Y


Date           04/26  Fri 04/27/18  Sat 04/28/18  Sun 04/29/18  Mon 04/30/18
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          66      44    69      44    69      45    71      46    77
Temp          63 60   49 45 66 63   49 45 66 63   50 46 68 65   51 48 73 70
Dewpt         45 45   40 42 44 44   43 43 41 43   43 44 42 46   45 46 49 51
PWind Dir        NW      SW    SW      NW    NW      NW    NW      NE    SW
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B1 B1   SC B1 B1 B1   B1 SC B1 SC   FW FW FW FW   FW CL FW FW
PoP 12hr         10      20    20      10    20       5     5      10    10
Rain shwrs             S  S  S  S          S  S

$$

TNZ071-240900-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
330 PM EDT Mon Apr 23 2018

Date           04/23/18      Tue 04/24/18            Wed 04/25/18            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                      54          66          53          67          49
Temp          58 60 59 57 56 55 60 63 65 63 58 56 54 54 60 65 67 62 56 53 51 50
Dewpt         55 56 55 55 56 55 57 58 57 55 54 52 52 52 53 53 53 52 51 50 48 48
RH            90 87 87 93100100 90 84 75 75 86 86 93 93 78 65 61 70 83 89 89 93
Wind Dir       E  E NE  E NE  W SW  W SW  W  W  W  W  W  W NW NW  N NE NE  E NE
Wind Spd       5  5  5  6  4  1  3  6  8  4  5  5  4  5  6  6  6  4  1  1  2  3
Clouds        OV B2 OV OV OV OV OV OV OV OV OV B2 OV OV OV OV B2 B2 B2 B2 B2 B2
PoP 12hr                     70          70          40          40          20
QPF 12hr                   0.31        0.38        0.03        0.02        0.01
Rain shwrs     C  C  L  L  L  L  L  L  L  C  C  C  C  C  C  C  C  S  S
Tstms                               C  C
Wind           Y  Y  Y


Date           04/26  Fri 04/27/18  Sat 04/28/18  Sun 04/29/18  Mon 04/30/18
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          67      47    71      48    71      48    75      51    77
Temp          64 62   52 48 67 65   54 49 67 65   54 50 70 69   57 53 72 71
Dewpt         49 48   45 44 44 45   47 46 45 47   46 46 48 51   49 49 53 53
PWind Dir         N      NE    SW      SW     N       E    NE       E     S
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B2 B1   B1 SC B1 B1   B2 B1 SC SC   FW CL FW FW   FW FW FW SC
PoP 12hr         10      10    10      10    10       5     5      10    10

$$

TNZ036-240900-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
330 PM EDT Mon Apr 23 2018

Date           04/23/18      Tue 04/24/18            Wed 04/25/18            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                      54          67          53          67          48
Temp          60 59 59 57 56 56 60 64 66 64 59 57 54 54 60 65 67 63 56 53 50 50
Dewpt         55 57 56 55 55 56 56 58 57 55 53 52 52 52 53 53 52 51 50 49 47 47
RH            84 93 90 93 96100 87 81 73 73 80 83 93 93 78 65 59 65 80 86 89 89
Wind Dir      NE  E NE  E NE NE  S SW  W  W  W  W  W  W NW NW NW  N  N  N  N  N
Wind Spd       6  6  8  8  5  2  2  5  6  4  4  5  3  4  6  6  6  4  2  2  1  2
Clouds        OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 OV OV OV B2 B2 B2 OV OV B2
PoP 12hr                     70          70          30          30          10
QPF 12hr                   0.45        0.30        0.03        0.02           0
Rain shwrs     L  L  L  L  L  L  L  L  L  C  C  C  C  C  C  S  S
Tstms                               C  C


Date           04/26  Fri 04/27/18  Sat 04/28/18  Sun 04/29/18  Mon 04/30/18
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          68      46    70      47    71      47    74      50    78
Temp          65 63   52 48 67 65   53 49 68 66   53 49 70 69   56 52 74 73
Dewpt         48 49   44 44 42 46   47 46 42 48   47 46 48 51   48 49 52 54
PWind Dir        NE       N     W      NW     N       N    NE      NE     S
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B2 B1   SC SC B1 B1   B2 B1 SC SC   FW CL FW FW   CL FW FW FW
PoP 12hr         10      10    10      10    10       5     5      10    10

$$

TNZ099-240900-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
330 PM EDT Mon Apr 23 2018

Date           04/23/18      Tue 04/24/18            Wed 04/25/18            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                      55          69          55          69          51
Temp          67 63 60 58 57 56 63 67 68 67 62 57 56 55 60 67 69 66 59 54 52 51
Dewpt         56 58 58 57 55 53 53 55 55 55 55 53 52 52 52 53 53 53 51 51 49 49
RH            68 84 93 96 93 90 70 65 63 65 78 86 86 90 75 61 57 63 75 90 89 93
Wind Dir       E  E  E NW  W  W  W  W  W  W NW NW NW NW  N NW  N  N  N  N  N  N
Wind Spd       5  3  1  2  2  4  6 10 10  6  6  5  4  6 10  9 10  6  3  2  2  3
Clouds        B2 OV OV OV OV OV OV OV OV OV B2 B2 B1 B2 B2 B2 B2 B2 B2 OV B2 OV
PoP 12hr                     70          50          20          20          10
QPF 12hr                   0.75        0.18        0.01        0.02           0
Rain shwrs     L  L  L  C  C  C  C  C  C  S  S        S  S  S  S              C
Tstms          S  S                 S  S


Date           04/26  Fri 04/27/18  Sat 04/28/18  Sun 04/29/18  Mon 04/30/18
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          69      49    70      48    72      50    76      53    77
Temp          67 66   52 49 67 67   51 48 69 69   53 50 73 73   57 53 74 74
Dewpt         50 48   45 44 44 47   47 46 46 47   46 46 48 52   50 50 50 53
PWind Dir         N      NW     W      NW     N       N     N      NE    SE
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B2 B1   B1 SC B1 B1   B1 SC SC FW   FW CL FW FW   FW SC FW FW
PoP 12hr         40      10    20      20     5       5     5      10    10
Rain shwrs     C  C          S  S    S  S

$$

NCZ060-240900-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
330 PM EDT Mon Apr 23 2018

Date           04/23/18      Tue 04/24/18            Wed 04/25/18            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                      53          67          51          65          47
Temp          58 61 59 57 55 54 61 64 66 64 58 55 52 55 59 63 65 61 55 51 48 53
Dewpt         55 54 55 55 54 53 55 54 55 53 53 51 50 50 51 51 51 50 48 48 46 47
RH            90 78 87 93 96 96 81 70 68 67 83 86 93 83 75 65 60 67 77 89 93 80
Max/Min RH                   96          65          96          60          96
Wind Dir      SE  E  E  E SE SW SW  W  W  W NW NW NW NW NW NW NW  N  N  N  N NE
Wind Dir Deg  12 11 11 11 14 21 21 25 26 27 29 29 30 30 32 29 32 33  0  0  1  3
Wind Spd      16 13 14 10  5  3  3  5  8  4  4  5  5  6  8  9  9  8  4  2  2  1
Clouds        B2 OV OV OV OV OV OV OV OV OV B2 OV B2 B2 B2 B2 B2 B2 B2 OV B2 OV
Clouds (%)    84 88 93 93 98 92 90 92 98 95 87 92 83 83 84 79 80 75 71 91 87 93
Vsby           4  4  3  3  2  1  5  5
PoP 12hr                     70          70          30          20          20
QPF 12hr                   0.38        0.28        0.03        0.02        0.02
Rain shwrs     L  L  L  L  L  L  L  L  L  C  C  S  S  S  S  S  S  S  S  S  S  C
Tstms          S  S                 S  C
Haines                                    4                       3
LAL               2     1     1     2     3     1     1     1     1     1     1
Max Mix Hgt                            6100                    5700
AGL Mix Hgt                            4400                    4000
Max Vent Rt                           45300                   74000
T Wind Dir                                W                       N
T Wind Spd                               10                      18
ADI                                      39                      64
Max LVORI                                 4                       4
Stability         C     D     D     C     D     D     D     B     B     D     D
Ceiling        3200  3200  1000  4700  2400  1000  1700  3200  3200  1000 12700
Sta Pres      27.80 27.79 27.78 27.76 27.76 27.78 27.80 27.84 27.85 27.86 27.85


Date           04/26  Fri 04/27/18  Sat 04/28/18  Sun 04/29/18  Mon 04/30/18
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          67      45    70      44    70      44    76      48    76
Temp          64 63   50 52 67 65   50 51 67 65   50 53 72 70   54 56 72 71
Dewpt         48 46   44 44 43 46   44 44 44 47   44 45 47 50   48 49 47 50
PWind Dir        NW      NE     W      NW    NW      NE     N      NE    SE
Wind Char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    B2 B2   B1 SC B1 B1   B1 SC B1 SC   FW FW FW FW   FW SC FW FW
PoP 12hr         30      20    20      20    20       5    10      10     5
Rain shwrs     C  C    S  S  S  S    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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