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

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Point Forecast Matrices
National Weather Service Morristown TN
352 AM EDT Fri Apr 20 2018

TNZ017-202145-
Tri Cities Airport-Sullivan TN
36.50N  82.41W Elev. 1536 ft
352 AM EDT Fri Apr 20 2018

Date             Fri 04/20/18            Sat 04/21/18            Sun 04/22/18
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                      63          35          67          43          68
Temp          32 33 49 58 62 56 48 42 39 37 53 62 66 61 54 49 46 43 57 64 67 63
Dewpt         29 29 27 26 26 28 27 27 28 30 32 34 35 35 35 35 36 37 40 40 41 41
RH            88 85 42 29 25 34 44 55 64 75 44 35 32 38 48 58 68 79 53 41 39 44
Wind Dir      NE NE NE  N  N  N NE NE  E  E  S  W NW NE  E  E  E  E SE SE SE SE
Wind Spd       2  1  4  5  5  4  3  4  3  3  3  3  3  2  2  2  2  1  3  5  6  6
Clouds        CL CL CL CL CL CL CL CL CL CL CL FW FW FW FW SC SC B1 B1 B2 B2 B2
PoP 12hr                      0           0           0           0          10
QPF 12hr                      0           0           0           0           0
Rain shwrs                                                        S  S  S  S  C
Freeze         W  W


Date          Mon 04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18
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          46    61      47    66      49    66      46    65
Temp          52 47 59 57   50 48 63 62   53 50 64 61   51 47 62 60
Dewpt         40 41 44 44   44 44 46 49   47 47 49 47   45 44 44 43
PWind Dir         E     E       E    SE       S    SW       W     W
Wind Char        LT    GN      GN    GN      LT    GN      LT    GN
Avg Clouds    B2 OV OV OV   OV OV B2 B2   B2 B2 B2 B2   B2 B2 B2 B2
PoP 12hr         40    70      70    60      40    50      40    40
Rain shwrs     C  C  L  L    L  L  L  L    C  C  C  C    C  C  C  C

$$

TNZ071-202145-
Knoxville McGhee Tyson Airport-Blount TN
35.80N  83.98W Elev. 979 ft
352 AM EDT Fri Apr 20 2018

Date             Fri 04/20/18            Sat 04/21/18            Sun 04/22/18
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                      65          39          70          48          67
Temp          37 37 52 60 64 59 51 46 42 41 56 65 69 65 58 54 51 48 58 64 66 63
Dewpt         30 31 31 31 32 32 32 32 33 34 37 40 41 42 41 41 41 42 44 44 44 44
RH            75 79 44 33 30 36 48 58 70 76 49 40 36 43 53 61 68 80 59 48 45 50
Wind Dir      NE NE NE NE NE NE NE NE NE  E  N  N  N NE  E  S  E NE  E NE NE NE
Wind Spd       4  4  8  8  8  4  4  5  4  3  3  3  3  3  2  1  2  3  4  6  8  6
Clouds        CL CL CL CL CL CL CL CL CL CL CL FW FW SC SC B1 B1 B1 B2 B2 OV OV
PoP 12hr                      0           0           0           0          40
QPF 12hr                      0           0           0           0        0.05
Rain shwrs                                                        C  C  C  C  L
Frost          Y  Y


Date          Mon 04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18
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          49    63      51    68      52    68      49    68
Temp          54 50 60 60   54 52 65 64   56 52 65 63   54 50 65 63
Dewpt         44 46 48 48   47 48 50 52   50 50 50 49   47 46 47 47
PWind Dir         E     E      NE     E       S     W       W     W
Wind Char        GN    GN      GN    LT      LT    GN      GN    GN
Avg Clouds    OV OV OV OV   OV B2 B2 B2   B2 B2 B2 B1   B2 B2 B1 B1
PoP 12hr         70    70      60    60      40    50      30    30
Rain shwrs     L  L  L  L    L  L  L  L    C  C  C  C    C  C  C  C

$$

TNZ036-202145-
Oak Ridge-Anderson TN
36.00N  84.24W Elev. 913 ft
352 AM EDT Fri Apr 20 2018

Date             Fri 04/20/18            Sat 04/21/18            Sun 04/22/18
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                      66          38          70          47          69
Temp          38 37 52 61 65 59 51 45 42 40 56 65 69 64 57 53 50 47 59 65 68 64
Dewpt         31 31 31 31 31 32 31 31 32 34 36 39 41 41 41 41 41 41 43 44 45 45
RH            76 79 44 32 28 36 46 58 67 79 47 38 36 43 55 64 71 79 55 46 43 50
Wind Dir      NE NE NE NE NE NE NE NE NE NE  E  S SE  E  E SE  E NE  E  E  E  E
Wind Spd       4  3  6  6  5  4  4  5  4  3  3  2  2  1  1  1  2  2  3  4  4  2
Clouds        CL CL CL CL CL CL CL CL CL CL CL FW FW SC SC B1 B1 B1 B2 B2 OV OV
PoP 12hr                      0           0           0           0          30
QPF 12hr                      0           0           0           0        0.05
Rain shwrs                                                        C  C  C  C  D
Frost          Y  Y


Date          Mon 04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18
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          49    63      50    68      51    68      48    68
Temp          54 50 61 60   53 51 65 64   56 52 65 63   53 49 64 63
Dewpt         44 46 48 49   48 48 50 52   50 49 50 48   46 46 47 46
PWind Dir         E     E      NE    NE       N     W       W     W
Wind Char        LT    LT      LT    LT      LT    LT      LT    LT
Avg Clouds    OV OV OV OV   OV B2 B2 OV   B2 B2 B2 B2   B2 B2 B1 B1
PoP 12hr         70    70      60    60      40    50      30    30
Rain shwrs     D  D  L  L    L  L  L  L    C  C  C  C    C  C  C  C

$$

TNZ099-202145-
Chattanooga Airport-Hamilton TN
35.03N  85.22W Elev. 688 ft
352 AM EDT Fri Apr 20 2018

Date             Fri 04/20/18            Sat 04/21/18            Sun 04/22/18
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                      69          41          71          50          66
Temp          42 41 56 64 68 62 54 48 45 43 58 66 70 66 59 55 53 51 59 63 65 62
Dewpt         30 31 32 33 34 34 34 35 36 37 39 40 42 43 43 42 42 43 45 46 47 47
RH            62 67 40 31 28 35 46 60 70 79 49 38 36 43 55 61 66 74 60 54 52 58
Wind Dir       N NE NE NE NE NE NE NE NE NE  E SE SE SE SE SE SE  E  E  E  E  E
Wind Spd      11  5  5  3  4  4  4  4  3  3  5  6  5  3  2  2  4  3  8 10 10  9
Clouds        CL CL CL CL CL CL CL CL CL CL CL FW FW FW FW B2 B2 B2 OV OV OV OV
PoP 12hr                      0           0           0          20          70
QPF 12hr                      0           0           0        0.01        0.24
Rain                                                        S  S
Rain shwrs                                                        L  L  L  L  D


Date          Mon 04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18
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    65      52    69      52    69      48    69
Temp          55 52 63 62   55 53 66 65   57 53 66 64   53 49 66 65
Dewpt         47 48 50 50   50 49 52 52   50 49 49 48   46 45 47 47
PWind Dir         E    NE      NE    NE       N    NW      NW    NW
Wind Char        GN    GN      GN    LT      LT    GN      GN    GN
Avg Clouds    OV OV OV OV   OV OV OV B2   B2 B1 B1 B1   B1 B1 B1 B1
PoP 12hr         80    60      60    50      30    40      30    20
Rain shwrs     D  D  L  L    L  L  C  C    C  C  C  C    C  C  S  S

$$

NCZ060-202145-
Tusquitee RAWS-Forestry-Cherokee NC
35.07N  84.12W Elev. 1600 ft
352 AM EDT Fri Apr 20 2018

Date             Fri 04/20/18            Sat 04/21/18            Sun 04/22/18
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                      67          39          68          45          66
Temp          35 34 51 61 66 60 52 46 43 40 55 63 67 62 55 51 48 46 57 63 65 62
Dewpt         29 29 29 30 32 34 34 34 34 34 35 37 39 41 40 40 40 41 42 43 44 44
RH            78 82 42 31 28 37 50 63 70 79 47 38 36 46 57 66 74 83 57 48 46 52
Min/Max RH                   28          79          36          83          45
Wind Dir       W  E  S NW NW NW NE  E  E  E SE  S SE SE SE SE SE SE SE SE SE SE
Wind Dir Deg  24  7 18 29 31 32  4 10 11 11 13 16 15 15 14 12 12 13 13 14 13 12
Wind Spd       1  2  0  3  5  4  4  3  4  4  5  5  4  4  3  4  6  4  6  8  9 10
Clouds        CL CL CL CL CL CL CL CL CL CL CL FW FW FW FW B1 B1 B2 B2 OV OV OV
Clouds (%)     0  0  0  0  0  1  2  3  3  4  4  9  9 24 24 59 59 77 82 92100 99
Vsby          10 10 10 10 10 10 10 10
PoP 12hr                      0           0           0           5          50
QPF 12hr                      0           0           0           0        0.12
Rain shwrs                                                        C  C  C  C  D
Freeze         W  W
Haines                        5                       6
LAL               1     1     1     1     1     1     1     1     1     1     1
Max Mix Hgt                4600                    5700
AGL Mix Hgt                2900                    4000
Max Vent Rt               16600                   32200
T Wind Dir                   NW                      SE
T Wind Spd                    5                       8
ADI                          14                      28
Max LVORI                     4                       3
Stability         G     A     A     G     G     B     A     F     F     C     D
Ceiling        NONE  NONE  NONE  NONE  NONE  NONE 23500 18200 15900 12700  8000
Sta Pres      28.20 28.21 28.18 28.23 28.22 28.22 28.17 28.22 28.16 28.12 28.03


Date          Mon 04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18
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          48    62      48    67      49    67      45    68
Temp          53 49 59 58   52 49 64 62   53 50 64 62   51 46 64 62
Dewpt         44 46 47 47   47 47 49 51   49 48 48 49   46 44 45 46
PWind Dir         E     E       E     E       N    NW      NW    NW
Wind Char        GN    GN      GN    LT      LT    LT      LT    LT
Avg Clouds    OV OV OV OV   OV OV B2 B2   B2 B2 B1 B1   B2 B2 B1 B1
PoP 12hr         80    70      60    60      30    40      20    30
Rain shwrs     D  D  L  L    L  L  L  L    C  C  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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