Point Forecast Matrices
Issued by NWS Sterling, VA

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240
FOUS51 KLWX 191309
PFMLWX

Point Forecast Matrices
National Weather Service Baltimore MD/Washington DC
909 AM EDT Thu Apr 19 2018

VAZ054-192100-
Reagan National Airport-Arlington VA
38.86N  77.03W Elev. 66 ft
909 AM EDT Thu Apr 19 2018

Date             Thu 04/19/18            Fri 04/20/18            Sat 04/21/18
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                      58          37          56          39          59
Temp                56 55 53 50 45 42 39 41 50 54 55 50 46 43 41 44 52 57 58 53
Dewpt               42 34 29 28 27 26 26 27 26 27 28 30 31 31 29 30 30 30 29 32
RH                  59 45 39 42 49 53 59 57 39 35 35 46 55 62 62 57 43 35 33 44
Wind dir            NW NW NW NW NW NW NW NW NW NW NW NW  N NW NW NW NW NW NW NW
Wind spd            20 23 23 23 19 16 14 20 18 18 16 13 11  6  6  9  9  6 10  8
Wind gust              39 39
Clouds              B2 B2 B1 SC FW FW FW FW FW FW FW FW FW FW CL FW FW SC SC SC
PoP 12hr                     80           5           0           0           0
QPF 12hr                   0.02           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           S


Date          Sun 04/22/18  Mon 04/23/18  Tue 04/24/18  Wed 04/25/18
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          42    63      44    64      45    63      51    65
Temp          46 47 61 56   48 49 62 57   49 49 61 59   54 54 64 60
Dewpt         33 33 34 36   34 37 37 37   37 41 44 45   46 48 51 51
PWind dir         N     E      SE     E      SE     E       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC SC SC   SC SC SC SC   SC B1 B1 B2   B2 B2 B2 B2
PoP 12hr          0     0       0     5      30    50      70    60
Rain shwrs                                 C  C  C  C    L  L  L  L

$$
MDZ013-192100-
Baltimore/Washington Airport-Anne Arundel MD
39.19N  76.67W Elev. 154 ft
909 AM EDT Thu Apr 19 2018

Date             Thu 04/19/18            Fri 04/20/18            Sat 04/21/18
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                      56          36          55          37          58
Temp                54 53 51 49 44 41 38 40 49 53 54 48 44 41 40 42 51 56 57 52
Dewpt               42 37 29 27 26 25 25 25 25 27 27 27 29 29 28 29 29 29 29 30
RH                  64 54 42 42 49 52 59 55 39 36 35 44 55 62 62 60 42 35 34 43
Wind dir             W NW NW NW NW NW NW NW NW NW NW NW  N NW NW NW NW NW NW NW
Wind spd            11 20 20 17 14 12 12 12 14 13 14 10  8  4  6  5  8  6  8  3
Wind gust           21 37 36 31 26 23 23 23 26 25 26
Clouds              OV B2 B2 SC FW FW FW FW FW FW FW FW FW FW CL FW FW SC SC SC
PoP 12hr                     70           5           0           0           0
QPF 12hr                   0.04           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           C


Date          Sun 04/22/18  Mon 04/23/18  Tue 04/24/18  Wed 04/25/18
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          41    61      41    64      43    64      49    64
Temp          45 46 59 54   46 46 62 56   48 48 62 58   52 52 63 58
Dewpt         32 31 32 33   33 35 35 35   36 39 42 44   44 47 51 50
PWind dir         N     N      SE     E      SE     E       E     E
Wind char        LT    LT      LT    LT      LT    LT      GN    LT
Avg clouds    SC SC FW FW   FW FW FW SC   SC SC B1 B2   B2 B2 B2 B2
PoP 12hr          0     0       0     5      20    40      60    60
Rain shwrs                                 S  S  C  C    L  L  L  L

$$
MDZ011-192100-
Baltimore Inner Harbor-Baltimore City MD
39.28N  76.61W Elev. 20 ft
909 AM EDT Thu Apr 19 2018

Date             Thu 04/19/18            Fri 04/20/18            Sat 04/21/18
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                      56          36          55          37          58
Temp                54 53 52 48 43 40 38 40 49 53 54 48 44 41 40 42 51 56 57 52
Dewpt               40 35 28 28 26 25 25 25 25 27 27 27 29 29 29 28 29 30 29 31
RH                  59 50 39 46 51 55 59 55 39 36 35 44 55 62 64 57 42 37 34 44
Wind dir             W NW NW NW NW NW NW NW NW NW NW NW  N NW NW NW NW NW NW NW
Wind spd            20 23 23 19 18 14 14 13 14 13 14 10  8  4  6  5  6  5  8  2
Wind gust              39 39 35 33 26 26 25 26 25 26
Clouds              OV B2 B2 SC FW FW FW CL FW FW FW FW FW FW CL FW FW SC SC SC
PoP 12hr                     60           5           0           0           0
QPF 12hr                   0.04           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           L


Date          Sun 04/22/18  Mon 04/23/18  Tue 04/24/18  Wed 04/25/18
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          41    61      42    64      44    64      49    64
Temp          45 46 59 54   46 47 62 57   49 49 62 58   52 52 63 59
Dewpt         33 31 32 34   33 35 35 35   36 39 42 44   44 47 50 50
PWind dir         N     N       E     E      SE    SE       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC FW FW   FW FW FW SC   SC SC B1 B2   B2 B2 B2 OV
PoP 12hr          0     0       0     5      20    40      60    60
Rain shwrs                                 S  S  C  C    L  L  L  L

$$
WVZ052-192100-
Martinsburg Airport-Berkeley WV
39.41N  77.98W Elev. 558 ft
909 AM EDT Thu Apr 19 2018

Date             Thu 04/19/18            Fri 04/20/18            Sat 04/21/18
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                      52          33          54          34          58
Temp                51 51 50 46 41 38 36 38 47 52 52 47 42 39 37 40 50 56 56 49
Dewpt               39 31 28 25 24 23 23 25 25 27 28 27 28 27 26 28 29 29 29 30
RH                  63 46 42 43 50 54 59 59 42 38 39 45 57 62 64 62 44 35 35 48
Wind dir            NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW  N
Wind spd            19 25 24 17 16 12 11 13 16 14 16 10  6  4  5  4  6  4  6  3
Wind gust           35 46 43 31 28 23    25 28 26 28
Clouds              B1 B1 B1 SC FW FW FW FW CL FW FW FW CL FW CL FW FW SC SC SC
PoP 12hr                     50           5           0           0           0
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           S
Freeze                              A  A  A


Date          Sun 04/22/18  Mon 04/23/18  Tue 04/24/18  Wed 04/25/18
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          35    61      38    64      41    62      46    63
Temp          40 41 59 52   43 44 62 55   46 46 60 56   50 50 61 57
Dewpt         29 32 35 36   33 35 39 38   34 37 42 44   42 44 48 48
PWind dir         N     E       E    SE      SE    SE       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC SC SC   SC SC SC SC   SC B1 B1 B2   B2 B2 OV OV
PoP 12hr          0     5       0     5      30    50      60    50
Rain shwrs                                 C  C  C  C    L  L  C  C

$$
VAZ506-192100-
Washington Dulles Airport-Loudoun VA
38.96N  77.45W Elev. 321 ft
909 AM EDT Thu Apr 19 2018

Date             Thu 04/19/18            Fri 04/20/18            Sat 04/21/18
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                      56          34          56          36          59
Temp                54 53 51 48 43 39 37 39 49 54 54 49 44 41 39 41 51 57 57 52
Dewpt               41 33 28 26 25 24 24 25 26 28 28 28 30 29 28 29 29 29 29 31
RH                  61 46 41 42 49 54 59 57 40 36 36 44 57 62 64 62 42 34 34 44
Wind dir            NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW  N
Wind spd            14 23 24 18 16 11 11 13 16 14 16 11  8  4  5  5  6  4  6  3
Wind gust           26 41 43 33 28       25 28 26 28
Clouds              B1 B1 B1 SC FW FW FW CL FW FW FW FW CL FW CL FW FW SC SC SC
PoP 12hr                     80           5           0           0           0
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           S
Freeze                              A  A  A


Date          Sun 04/22/18  Mon 04/23/18  Tue 04/24/18  Wed 04/25/18
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          40    62      42    65      44    63      49    64
Temp          44 45 60 55   47 47 63 57   49 48 61 58   52 52 63 58
Dewpt         32 33 35 37   35 37 37 37   36 39 43 45   45 47 50 50
PWind dir         N     E      SE    SE      SE     E       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC SC SC   SC SC SC SC   SC B1 B1 B2   B2 B2 B2 B2
PoP 12hr          0     0       0    10      30    50      70    60
Rain shwrs                                 C  C  C  C    L  L  L  L

$$
VAZ037-192100-
Charlottesville Airport-Albemarle VA
38.14N  78.45W Elev. 640 ft
909 AM EDT Thu Apr 19 2018

Date             Thu 04/19/18            Fri 04/20/18            Sat 04/21/18
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                      60          34          60          36          64
Temp                58 58 55 50 44 40 37 40 51 58 58 51 45 42 39 42 55 61 62 55
Dewpt               38 29 26 25 25 24 23 23 24 26 26 26 28 28 27 29 30 31 30 32
RH                  47 33 32 37 47 52 56 50 34 29 29 37 51 57 62 60 38 32 30 41
Wind dir             W NW NW NW NW NW NW NW NW NW NW  N  N  N NW NW  N  N NE  E
Wind spd            16 19 18 11  8  6  6  8 10 10 11  8  5  2  3  2  2  2  3  3
Wind gust           28 35 34
Clouds              B1 SC SC FW CL FW CL CL CL CL CL CL CL CL CL FW FW FW FW SC
PoP 12hr                     70           5           0           0           0
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs
Freeze                              A  A  A


Date          Sun 04/22/18  Mon 04/23/18  Tue 04/24/18  Wed 04/25/18
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          40    64      41    65      43    62      48    65
Temp          46 46 62 55   46 47 63 57   48 47 60 57   51 52 63 59
Dewpt         31 33 37 39   36 38 38 39   36 39 44 45   44 46 49 50
PWind dir        NE     E       E     E       E     E      NE    NE
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1 B1 SC   SC SC SC B1   B1 B2 B2 B2   B2 B2 B2 B2
PoP 12hr          0     5       5    20      50    60      70    50
Rain shwrs                         S  S    C  C  L  L    L  L  C  C

$$
MDZ003-192100-
Hagerstown Airport-Washington MD
39.71N  77.73W Elev. 705 ft
909 AM EDT Thu Apr 19 2018

Date             Thu 04/19/18            Fri 04/20/18            Sat 04/21/18
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                      50          32          52          33          56
Temp                48 48 47 43 39 36 34 37 45 50 50 45 40 37 36 38 48 54 54 49
Dewpt               39 31 27 25 24 23 23 25 25 27 28 27 27 26 25 27 29 28 29 30
RH                  71 51 45 49 54 59 64 61 45 41 42 49 59 64 64 64 47 36 38 48
Wind dir            NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW
Wind spd            17 25 24 18 16 12 12 13 17 14 17 11  8  4  5  4  6  5  8  4
Wind gust           31 44 43 33 28 23 23 25 31 26 31
Clouds              B1 B1 B2 B1 SC FW FW FW FW FW FW FW CL FW CL FW FW SC SC SC
PoP 12hr                     50           5           0           0           0
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           S
Freeze                              A  A  A


Date          Sun 04/22/18  Mon 04/23/18  Tue 04/24/18  Wed 04/25/18
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          36    60      39    62      42    61      47    61
Temp          41 42 58 52   44 44 60 55   47 46 59 56   50 50 60 55
Dewpt         29 31 33 34   32 34 38 37   33 36 41 42   42 44 47 48
PWind dir         N     W       E    SE      SE    SE       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC FW FW   FW FW SC SC   SC SC B1 B2   B2 B2 B2 B2
PoP 12hr          0     0       0     5      20    40      60    50
Rain shwrs                                 S  S  C  C    L  L  C  C

$$
MDZ017-192100-
Patuxent River NAS MD
38.29N  76.41W Elev. 39 ft
909 AM EDT Thu Apr 19 2018

Date             Thu 04/19/18            Fri 04/20/18            Sat 04/21/18
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                      58          38          57          43          58
Temp                54 55 55 52 47 43 40 42 51 55 56 52 48 46 45 46 53 57 57 54
Dewpt               44 39 34 32 30 28 27 28 28 29 30 32 33 33 32 32 32 32 32 34
RH                  69 55 45 46 51 55 59 57 41 37 37 46 56 60 60 58 44 38 38 46
Wind dir            NW NW NW NW NW NW NW NW NW NW NW NW  N  N  N  N  N NW  N  S
Wind spd            20 23 24 21 21 19 19 17 16 13 13 11 10  8 10  9  9  6  4  2
Wind gust              39 39 39 39 35 35 31 28 25 25
Clouds              B2 B2 B1 SC FW FW CL CL CL FW FW FW FW FW CL FW FW SC SC SC
PoP 12hr                     80           5           0           0           0
QPF 12hr                   0.03           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           L


Date          Sun 04/22/18  Mon 04/23/18  Tue 04/24/18  Wed 04/25/18
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      44    63      47    63      52    65
Temp          49 49 60 55   48 48 61 57   51 51 62 59   55 55 64 60
Dewpt         37 36 35 36   39 39 38 38   40 44 45 46   48 50 53 52
PWind dir         W    NE      SE     E       E     E       E     E
Wind char        LT    LT      LT    LT      GN    GN      GN    GN
Avg clouds    SC SC SC SC   SC SC SC SC   SC B1 B1 B2   B2 B2 B2 B2
PoP 12hr          0     0       0     5      30    50      70    60
Rain shwrs                                 C  C  C  C    L  L  L  L

$$
WVZ502-192100-
Petersburg WV
38.99N  79.15W Elev. 963 ft
909 AM EDT Thu Apr 19 2018

Date             Thu 04/19/18            Fri 04/20/18            Sat 04/21/18
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                      53          33          53          33          60
Temp                47 47 47 44 40 37 35 38 46 51 51 46 41 38 36 39 51 58 58 52
Dewpt               32 28 27 26 24 23 22 24 24 27 28 27 28 26 25 26 28 29 30 30
RH                  56 47 45 49 52 56 59 57 42 39 41 47 59 62 64 59 41 33 34 43
Wind dir             W NW NW NW NW NW NW NW NW NW NW NW NW NW NW  W NW  N  N  N
Wind spd            19 23 19 13 12  8  9  9 11 11 12  8  5  1  3  2  3  2  5  3
Wind gust           35 40 35 25 23                23
Clouds              B2 B2 B1 SC FW SC FW FW FW FW CL FW FW FW FW FW FW SC SC SC
PoP 12hr                     70          20           0           0           0
QPF 12hr                   0.02        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           C  S  S
Snowshwrs                     S  S  S  S


Date          Sun 04/22/18  Mon 04/23/18  Tue 04/24/18  Wed 04/25/18
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          38    63      40    64      43    61      47    62
Temp          43 44 61 54   45 46 62 56   48 47 59 56   50 50 61 56
Dewpt         29 32 38 40   36 38 41 40   35 37 43 45   43 45 48 48
PWind dir         N     E      SE    SE      SE    SE      SE     S
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC SC SC   SC SC SC SC   B1 B1 B1 B2   B2 B2 OV OV
PoP 12hr          0     5       5    20      40    60      60    50
Rain shwrs                         S  S    C  C  L  L    L  L  C  C

$$
MDZ014-192100-
Annapolis MD
38.99N  76.49W Elev. 7 ft
909 AM EDT Thu Apr 19 2018

Date             Thu 04/19/18            Fri 04/20/18            Sat 04/21/18
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                      57          37          56          39          58
Temp                53 54 52 49 44 41 39 41 50 54 55 50 46 43 41 43 52 56 57 52
Dewpt               41 36 31 30 28 27 27 27 26 28 29 30 31 30 30 30 30 32 31 32
RH                  64 50 44 48 53 57 62 57 39 36 37 46 55 60 65 60 43 40 37 46
Wind dir            NW NW NW NW NW NW NW NW NW NW NW NW  N  N  N  N NW NW NW NW
Wind spd            11 18 18 18 16 13 14 14 14 13 13 11 10  5  8  6  8  6  6  3
Wind gust           21 33 34 33 28 25 26 26 26 25 25
Clouds              OV B2 B2 SC FW FW CL CL FW FW FW FW FW FW CL FW FW SC SC SC
PoP 12hr                     80           5           0           0           0
QPF 12hr                   0.04           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           L


Date          Sun 04/22/18  Mon 04/23/18  Tue 04/24/18  Wed 04/25/18
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          43    60      43    63      45    63      50    64
Temp          46 47 58 54   47 48 61 56   49 49 61 58   53 53 63 59
Dewpt         34 32 34 34   35 37 36 37   37 40 43 45   46 48 51 51
PWind dir         N    NW      SE     E      SE     E       E     E
Wind char        LT    LT      LT    LT      LT    GN      GN    GN
Avg clouds    SC SC FW FW   FW FW FW SC   SC SC B1 B2   B2 B2 B2 B2
PoP 12hr          0     0       0     5      20    40      60    60
Rain shwrs                                 S  S  C  C    L  L  L  L

$$



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