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Point Forecast Matrices
National Weather Service Baltimore MD/Washington DC
1233 PM EST Thu Dec 14 2017

VAZ054-142100-
Reagan National Airport-Arlington VA
38.86N  77.03W Elev. 66 ft
1233 PM EST Thu Dec 14 2017

Date             Thu 12/14/17            Fri 12/15/17            Sat 12/16/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      45          26          37          29          44
Temp                   44 40 34 31 29 28 28 32 36 36 33 32 31 31 31 37 42 42 38
Dewpt                  20 16 17 16 16 15 16 15 16 19 20 20 20 20 20 21 21 23 24
RH                     38 37 49 53 58 58 60 49 43 50 58 61 63 63 63 52 43 46 57
Wind dir               NW NW  N  N  N NE  E SE  S SW  W  W  W  W  W  W  W  W  W
Wind spd               13 10  6  5  4  3  2  2  4  4  4  5  5  5  6  8 10  9  3
Clouds                 SC SC B2 B2 B2 B1 B1 OV OV B1 SC FW FW SC SC B1 SC SC FW
PoP 12hr                      5           5          30           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Snow                                         C  C  C
Sprinkles


Date          Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          31    48      39    54      40    55      37    47
Temp          35 33 46 44   42 41 52 47   44 42 53 46   42 39 46 40
Dewpt         25 25 29 33   37 36 40 41   40 37 40 37   34 29 25 25
PWind dir         W    SE      SW    SW       W     W       W    NW
Wind char        LT    LT      LT    LT      LT    LT      GN    GN
Avg clouds    FW FW SC B2   B2 B2 B1 B1   B1 SC B1 SC   SC SC FW FW
PoP 12hr          0    30      30    20      10    20      10     5
Rain shwrs                   C  C  S  S    S  S  S  S

$$
MDZ013-142100-
Baltimore/Washington Airport-Anne Arundel MD
39.19N  76.67W Elev. 154 ft
1233 PM EST Thu Dec 14 2017

Date             Thu 12/14/17            Fri 12/15/17            Sat 12/16/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      41          21          34          27          42
Temp                   41 38 31 27 25 23 25 29 33 33 31 30 29 28 29 35 40 40 35
Dewpt                  19 15 15 13 13 13 14 13 14 17 19 18 18 18 18 19 19 21 22
RH                     41 38 51 55 60 65 62 51 45 51 61 60 63 66 63 52 42 46 59
Wind dir               NW NW NW  N  N  N NE SE  S SW  W  W  W  W  W  W  W  W  W
Wind spd               12 11  6  4  2  3  2  2  4  4  3  5  6  6  8 10 12 11  3
Clouds                 SC SC B1 B1 B2 B1 B1 OV OV B2 SC FW FW SC SC B1 B1 SC FW
PoP 12hr                      5           5          40           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Snow                                         S  C  C


Date          Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          28    46      36    53      38    54      35    45
Temp          32 30 44 41   39 39 51 46   42 41 52 45   41 37 44 38
Dewpt         23 23 27 32   35 34 39 39   38 36 38 36   32 27 24 24
PWind dir        NW    SE      SW    SW       W     W       W    NW
Wind char        LT    LT      LT    LT      LT    LT      GN    BZ
Avg clouds    FW FW SC B1   B2 B2 B1 B1   B1 B1 B1 SC   SC SC SC FW
PoP 12hr          0    30      30    20      10    20      10     5
Rain shwrs                   C  C  S  S    S  S  S  S

$$
MDZ011-142100-
Baltimore Inner Harbor-Baltimore City MD
39.28N  76.61W Elev. 20 ft
1233 PM EST Thu Dec 14 2017

Date             Thu 12/14/17            Fri 12/15/17            Sat 12/16/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      42          27          34          28          41
Temp                   41 38 33 30 29 28 27 30 33 33 31 30 30 29 30 35 40 39 36
Dewpt                  18 15 15 14 13 13 14 13 15 17 19 19 19 18 18 19 20 21 22
RH                     39 38 47 51 51 53 57 49 47 51 61 63 63 63 60 52 44 48 56
Wind dir               NW NW NW NW  N  N NE SE  S SW  W  W  W  W  W  W  W  W  W
Wind spd               12 11  6  5  3  2  1  2  3  4  3  5  6  6  8 10 12 11  3
Clouds                 SC FW B1 B1 B2 B2 B1 OV OV B2 B1 FW FW SC SC B1 B1 SC FW
PoP 12hr                     10           5          40           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Snow                                         S  C  C


Date          Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          30    45      37    52      39    53      36    45
Temp          33 32 43 41   39 39 50 46   43 41 51 45   41 37 44 39
Dewpt         23 23 27 31   35 35 39 39   38 36 38 36   32 27 25 24
PWind dir        NW    SE      SW    SW       W     W       W    NW
Wind char        LT    LT      LT    LT      LT    LT      GN    BZ
Avg clouds    FW FW SC B1   B2 B2 B1 B1   B1 B1 B1 SC   SC SC SC SC
PoP 12hr          0    30      30    20      10    20      10     5
Rain shwrs                   C  C  S  S    S  S  S  S

$$
WVZ052-142100-
Martinsburg Airport-Berkeley WV
39.41N  77.98W Elev. 558 ft
1233 PM EST Thu Dec 14 2017

Date             Thu 12/14/17            Fri 12/15/17            Sat 12/16/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      38          19          35          25          42
Temp                   38 35 29 26 23 20 23 29 33 33 30 29 28 27 28 35 40 39 34
Dewpt                  16 12 14 14 13 13 13 14 15 17 17 18 17 18 17 20 20 20 22
RH                     40 38 53 60 65 74 65 53 47 51 58 63 63 68 63 54 44 46 61
Wind dir               NW NW NW  N NE  S  S  S SW SW  W  W  W  W  W  W  W NW  W
Wind spd               12 10  9  4  2  2  2  4  5  4  6  8  9  9  8  9 10  9  3
Wind gust                                                           19
Clouds                 SC SC B1 B2 B2 B2 B2 OV B2 B2 SC SC SC SC SC B1 SC SC FW
PoP 12hr                     10           5          20           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Snow                                         S


Date          Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          25    45      33    52      35    52      32    44
Temp          30 27 43 39   36 36 50 44   40 38 50 42   38 34 43 36
Dewpt         21 21 26 30   32 31 40 38   35 33 37 33   28 24 23 22
PWind dir        SW     S       S     W       W     W       W    NW
Wind char        LT    LT      LT    LT      LT    LT      GN    GN
Avg clouds    FW FW B1 B2   B2 B2 B2 B1   B1 B1 B1 SC   SC SC SC SC
PoP 12hr          0    30      30    20      10    20      10     5
Rain shwrs              S    C  C  S  S    S  S  S  S

$$
VAZ506-142100-
Washington Dulles Airport-Loudoun VA
38.96N  77.45W Elev. 321 ft
1233 PM EST Thu Dec 14 2017

Date             Thu 12/14/17            Fri 12/15/17            Sat 12/16/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      40          18          35          26          42
Temp                   40 37 31 27 24 21 23 29 33 34 31 29 29 28 29 35 40 40 35
Dewpt                  18 15 15 14 14 13 14 13 15 16 18 17 18 18 18 20 21 22 23
RH                     41 40 51 57 65 71 68 51 47 47 58 60 63 66 63 54 46 48 61
Wind dir               NW NW  N  N  N  E  S  S  S SW  W  W  W SW  W  W  W NW  W
Wind spd               13 11  8  4  2  2  1  3  6  5  5  5  6  5  6  8 10  9  3
Clouds                 SC SC B2 B2 B2 B2 B2 OV OV B1 SC FW FW SC SC B1 SC SC FW
PoP 12hr                     10           5          20           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Snow                                         S  S  S


Date          Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          27    46      35    54      37    54      34    46
Temp          31 29 44 41   38 38 52 46   42 40 52 44   40 36 45 38
Dewpt         23 23 27 31   35 34 40 39   38 36 38 35   31 26 24 24
PWind dir         W     S      SW    SW      SW     W       W    NW
Wind char        LT    LT      LT    LT      LT    LT      GN    GN
Avg clouds    FW FW SC B2   B2 B2 B1 B1   B1 SC B1 SC   SC SC FW FW
PoP 12hr          0    30      30    20      10    20      10     5
Rain shwrs              S    C  C  S  S    S  S  S  S

$$
VAZ037-142100-
Charlottesville Airport-Albemarle VA
38.14N  78.45W Elev. 640 ft
1233 PM EST Thu Dec 14 2017

Date             Thu 12/14/17            Fri 12/15/17            Sat 12/16/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      49          22          37          25          46
Temp                   49 46 35 29 27 24 24 30 35 35 31 30 28 28 28 37 44 43 37
Dewpt                  20 18 18 18 17 16 16 15 16 18 19 18 20 19 18 21 22 24 23
RH                     31 32 49 63 65 71 71 53 45 49 61 60 71 68 66 52 41 47 56
Wind dir               NW  N  N NE  E NE NE  S  S SW SW SW SW SW SW  W  W  W SW
Wind spd                6  5  4  3  2  2  2  2  4  6  5  5  4  5  5  6  8  5  3
Clouds                 SC SC B2 B2 B1 B1 B1 OV B2 SC FW FW FW SC FW FW FW FW CL
PoP 12hr                     10           5          30           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                         C


Date          Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          27    48      35    57      37    57      33    48
Temp          33 30 46 42   39 39 55 47   43 40 55 45   40 35 46 39
Dewpt         24 23 27 32   34 33 42 42   38 35 38 36   31 25 23 24
PWind dir        SW    SW      SW    SW       W     W       W     W
Wind char        LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    FW FW B1 B2   B2 B1 B1 B1   B1 SC SC SC   SC FW FW FW
PoP 12hr          0    30      30    20      10    20      10     5
Rain shwrs              S    C  C  C  C    S  S  S  S

$$
MDZ003-142100-
Hagerstown Airport-Washington MD
39.71N  77.73W Elev. 705 ft
1233 PM EST Thu Dec 14 2017

Date             Thu 12/14/17            Fri 12/15/17            Sat 12/16/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      35          18          33          26          39
Temp                   34 32 27 24 22 19 23 28 32 32 30 29 28 27 28 33 38 37 33
Dewpt                  15 12 13 13 12 12 13 13 14 16 17 17 17 17 17 19 19 19 21
RH                     45 43 55 62 65 74 65 53 47 51 58 60 63 65 63 56 46 48 61
Wind dir               NW NW NW  N NE SE  S  S SW SW  W  W  W  W  W  W  W NW  W
Wind spd               13 10  6  4  3  2  3  5  8  5  5  8  9  9  9 10 11 10  3
Wind gust                                                           20
Clouds                 SC SC SC B1 B2 B2 B2 B2 B2 B2 SC SC SC SC SC B1 B1 B1 SC
PoP 12hr                      5           5          20           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Snow                                         S


Date          Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          26    43      34    49      36    50      32    42
Temp          30 28 41 39   37 36 47 43   40 38 48 41   37 34 41 35
Dewpt         21 21 25 29   32 32 39 37   35 33 36 32   28 24 22 22
PWind dir         W     S       S    SW       W     W       W    NW
Wind char        LT    LT      LT    LT      LT    LT      GN    BZ
Avg clouds    SC FW SC B2   B2 B2 B2 B1   B1 B1 B1 SC   SC SC SC SC
PoP 12hr          0    30      30    20      10    20      10     5
Rain shwrs              S    C  C  S  S    S  S  S  S
Snowshwrs                    C  C

$$
MDZ017-142100-
Patuxent River NAS MD
38.29N  76.41W Elev. 39 ft
1233 PM EST Thu Dec 14 2017

Date             Thu 12/14/17            Fri 12/15/17            Sat 12/16/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      48          23          37          29          43
Temp                   47 43 35 31 28 25 27 32 36 36 33 32 31 31 31 37 41 41 38
Dewpt                  23 20 20 19 18 18 17 19 20 23 25 25 24 23 22 22 23 24 25
RH                     38 39 54 61 66 74 65 58 52 59 72 75 75 72 69 54 48 50 59
Wind dir               NW NW NW  N  N NE NE  E NE  W  W  W  W  W  W  W  W  W  W
Wind spd               17 11  9  9  8  6  4  4  3  4  4  9  9  8  9 11 11 11  5
Wind gust              27
Clouds                 SC FW SC B1 B2 B1 SC B2 OV B2 SC FW FW SC SC SC SC SC FW
PoP 12hr                      5           5          60           5           5
QPF 12hr                      0           0        0.04           0           0
Snow 12hr                 00-00       00-00           T
Snow                                         C  L  L


Date          Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          32    48      39    54      41    55      38    48
Temp          35 34 46 44   42 41 52 48   45 43 53 47   43 40 47 41
Dewpt         27 27 31 36   37 38 41 42   42 40 42 41   36 31 27 28
PWind dir         W     S      SW    SW      SW    SW       W    NW
Wind char        LT    LT      LT    LT      LT    LT      GN    BZ
Avg clouds    FW FW SC B1   B2 B2 B1 B1   B1 SC SC SC   SC SC FW FW
PoP 12hr          0    30      30    20      10    20      10     5
Rain shwrs                   C  C  C  C    S  S  S  S

$$
WVZ502-142100-
Petersburg WV
38.99N  79.15W Elev. 963 ft
1233 PM EST Thu Dec 14 2017

Date             Thu 12/14/17            Fri 12/15/17            Sat 12/16/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      37          21          36          27          42
Temp                   37 35 27 26 24 23 25 30 35 35 32 30 30 29 29 35 40 40 36
Dewpt                  18 16 17 17 17 17 16 17 19 18 18 18 18 19 18 21 22 23 23
RH                     46 45 65 68 74 77 68 58 52 49 56 60 60 66 63 56 48 50 59
Wind dir               NW NW  N  E  N  S SE  S  W  W  W  W  W SW  W  W  W  W SW
Wind spd                8  6  3  1  1  2  1  3  6  9  8  9  8  8  8  9  9  8  2
Wind gust                                                           19
Clouds                 B1 B1 B2 B2 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC FW
PoP 12hr                     10           5          20          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow
Snowshwrs                                    S


Date          Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          29    48      37    54      40    51      34    42
Temp          33 31 46 43   40 40 52 47   44 42 50 43   39 35 41 36
Dewpt         23 22 29 31   33 36 42 40   37 35 37 33   28 24 22 22
PWind dir        SW     S      SW    SW       W     W       W     W
Wind char        LT    LT      LT    LT      LT    LT      GN    GN
Avg clouds    FW FW B1 B2   B2 B2 B2 B1   B1 B1 B1 B1   B1 SC SC SC
PoP 12hr          0    40      40    30      30    30      30    10
Rain shwrs              S    C  C  C  C    C  C  C  C
Snowshwrs                                                C  C

$$
MDZ014-142100-
Annapolis MD
38.99N  76.49W Elev. 7 ft
1233 PM EST Thu Dec 14 2017

Date             Thu 12/14/17            Fri 12/15/17            Sat 12/16/17
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      43          24          35          29          42
Temp                   43 40 33 30 28 26 27 31 34 34 32 31 31 30 31 36 41 40 36
Dewpt                  21 18 17 16 14 14 14 16 17 20 21 20 20 21 19 20 21 23 23
RH                     41 41 51 55 55 60 57 53 49 56 63 63 63 69 61 52 44 50 59
Wind dir               NW NW NW  N  N  N  E  E  S SW  W  W  W  W  W  W  W  W  W
Wind spd               13 11  8  6  4  4  2  3  4  3  3  6  6  6  8 10 12 12  5
Clouds                 SC FW B2 B2 B2 B1 B1 OV OV B2 SC FW FW SC SC SC SC SC FW
PoP 12hr                      5           5          50           5           5
QPF 12hr                      0           0        0.03           0           0
Snow 12hr                 00-00       00-00           T
Flurries
Snow                                         C  C  C
Sprinkles


Date          Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
EST 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          30    46      38    53      40    54      37    46
Temp          33 32 44 42   40 40 51 47   44 42 52 46   42 38 45 40
Dewpt         25 24 29 34   37 36 40 41   40 38 40 38   34 29 26 26
PWind dir         W     S      SW    SW       W     W       W    NW
Wind char        LT    LT      LT    LT      LT    LT      GN    BZ
Avg clouds    FW FW SC B1   B2 B2 B1 B1   B1 SC B1 SC   SC SC FW FW
PoP 12hr          0    30      30    20      10    30      10     5
Rain shwrs                   C  C  S  S    S  S  C  C

$$



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