Point Forecast Matrices Issued by NWS Sterling, VA
000
FOUS51 KLWX 200232
PFMLWX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1031 PM EDT SUN MAY 19 2013
VAZ054-200900-
REAGAN NATIONAL AIRPORT-ARLINGTON VA
38.86N 77.03W ELEV. 66 FT
1031 PM EDT SUN MAY 19 2013
DATE 05/19/13 MON 05/20/13 TUE 05/21/13 WED
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 66 80 68 86 69
TEMP 69 68 67 70 76 79 79 76 73 71 69 73 81 85 85 80 75 73 71 75
DEWPT 63 63 64 62 63 64 64 64 65 64 64 65 66 66 65 67 67 66 66 66
RH 81 84 90 76 64 60 60 66 76 79 84 76 60 53 51 65 76 79 84 74
WIND DIR SE S S S S S S S S S SW SW SW SW SW S S SW SW SW
WIND SPD 6 6 6 8 8 10 10 8 5 4 3 3 4 4 3 3 3 3 3 4
CLOUDS OV OV OV B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC B1 B1 B1 B1 B1 SC
POP 12HR 50 40 30 10 10
QPF 12HR 0.03 0.12 0.01 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE S
RAIN SHWRS C C S S C C C
TSTMS C C C
OBVIS PF PF PF
HEAT INDEX 83 87 87 82
MAX HEAT 81 87 87
DATE 05/22 THU 05/23/13 FRI 05/24/13 SAT 05/25/13 SUN 05/26/13
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 88 69 85 66 78 60 71 57 75
TEMP 86 81 73 74 84 78 70 70 77 72 64 63 70 66 60 63 74 69
DEWPT 66 66 66 66 66 66 65 63 60 54 50 47 44 49 46 47 47 47
PWIND DIR SW SW SW SW W N N N NW
WIND CHAR LT LT GN LT LT LT LT LT GN
AVG CLOUDS SC SC B1 SC B1 B2 B2 B2 B2 B1 SC SC SC SC B1 SC B1 B1
POP 12HR 10 10 30 40 40 10 10 5 5
RAIN SHWRS C C C C C C
TSTMS C C C C
$$
MDZ013-200900-
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD
39.19N 76.67W ELEV. 154 FT
1031 PM EDT SUN MAY 19 2013
DATE 05/19/13 MON 05/20/13 TUE 05/21/13 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 66 78 66 85 68
TEMP 68 67 66 70 75 77 77 74 71 69 67 72 80 83 84 79 74 72 70 73
DEWPT 62 62 63 62 62 63 63 64 64 64 63 64 66 66 65 67 66 66 66 66
RH 81 84 90 76 64 62 62 71 79 84 87 76 62 57 53 67 76 81 87 79
WIND DIR SE S S S S S S S S S SW SW SW SW S S S SW SW SW
WIND SPD 6 6 5 6 8 10 9 6 5 3 2 2 4 4 3 4 3 2 3 4
CLOUDS OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B1 SC SC B1 B1 B1 B1 B1 B1
POP 12HR 40 40 30 10 10
QPF 12HR 0.03 0.09 0.01 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE S
RAIN SHWRS C C S S C C C
TSTMS C C C
OBVIS PF PF
HEAT INDEX 82 85 86
MAX HEAT 85 86
DATE 05/22 THU 05/23/13 FRI 05/24/13 SAT 05/25/13 SUN 05/26/13
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 83 68 84 65 78 56 70 53 75
TEMP 82 78 71 73 83 77 69 69 77 70 61 60 69 64 57 60 73 68
DEWPT 66 66 66 66 66 66 64 62 60 54 49 46 43 48 45 46 46 46
PWIND DIR SW S SW SW W N N N NW
WIND CHAR LT LT GN LT LT LT LT LT GN
AVG CLOUDS B1 B1 B1 SC B1 B1 B2 B2 B2 B1 SC SC SC SC SC SC B1 B1
POP 12HR 20 20 30 40 40 10 10 5 5
RAIN SHWRS S S S C C C C C C
TSTMS S S S C C C C
$$
MDZ011-200900-
BALTIMORE INNER HARBOR-BALTIMORE CITY MD
39.28N 76.61W ELEV. 20 FT
1031 PM EDT SUN MAY 19 2013
DATE 05/19/13 MON 05/20/13 TUE 05/21/13 WED
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 69 81 71 89 72
TEMP 70 69 69 73 78 80 80 78 75 73 72 76 84 88 88 83 78 76 74 77
DEWPT 63 62 63 61 63 63 64 64 64 64 63 65 66 65 65 67 67 66 66 66
RH 78 78 81 66 60 56 58 62 69 73 73 69 55 47 47 59 69 71 76 69
WIND DIR SE S S S S S S S S SW SW SW S SW SW S S SW SW SW
WIND SPD 6 6 5 6 8 10 9 6 5 2 1 2 4 5 3 4 3 2 3 4
CLOUDS OV OV OV B2 B2 B2 B2 B2 B2 B2 B1 B1 SC B1 B1 B1 B1 B1 B1 B1
POP 12HR 30 40 30 10 10
QPF 12HR 0.03 0.07 0.01 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE S
RAIN SHWRS C C S C C C
TSTMS C C C
OBVIS PF PF
HEAT INDEX 81 82 86 90 90 86
MAX HEAT 81 82 90 90 83
DATE 05/22 THU 05/23/13 FRI 05/24/13 SAT 05/25/13 SUN 05/26/13
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 90 71 86 69 80 61 74 59 75
TEMP 89 83 75 76 85 80 73 72 79 73 65 65 73 69 62 64 74 70
DEWPT 67 66 66 66 67 66 65 63 60 54 49 46 43 48 45 46 46 46
PWIND DIR SW S SW SW W N N N NW
WIND CHAR LT LT GN LT LT LT LT LT GN
AVG CLOUDS B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 SC SC SC SC SC SC B1 B1
POP 12HR 20 20 30 40 40 10 10 5 5
RAIN SHWRS S S S C C C C C C
TSTMS S S S C C C C
$$
WVZ052-200900-
MARTINSBURG AIRPORT-BERKELEY WV
39.41N 77.98W ELEV. 558 FT
1031 PM EDT SUN MAY 19 2013
DATE 05/19/13 MON 05/20/13 TUE 05/21/13 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 65 82 63 85 65
TEMP 67 66 66 70 77 81 81 75 70 67 65 70 79 83 83 78 73 69 67 72
DEWPT 62 62 61 61 63 63 63 64 63 61 60 63 66 66 66 66 65 63 62 65
RH 84 87 84 73 62 54 54 69 78 81 84 78 64 57 57 67 76 81 84 79
WIND DIR SE S S S S S S S S SW W W SW S SW S S W W SW
WIND SPD 6 5 5 6 5 6 6 5 5 2 1 1 2 2 1 2 3 1 1 2
CLOUDS OV OV OV B2 B2 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1
POP 12HR 30 30 20 20 10
QPF 12HR 0.02 0.06 0 0.01 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE S
RAIN SHWRS C C S C C C S S S
TSTMS C C C S S
OBVIS PF PF
HEAT INDEX 82 82 85 85
MAX HEAT 82 82 85 86
DATE 05/22 THU 05/23/13 FRI 05/24/13 SAT 05/25/13 SUN 05/26/13
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 88 66 84 62 76 54 72 52 73
TEMP 86 80 71 71 83 76 67 66 75 68 59 60 71 65 56 58 71 66
DEWPT 66 65 65 65 67 65 61 59 59 53 48 46 43 49 44 44 44 44
PWIND DIR SW SW SW SW NW N N N NW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 SC B1 B2 B2 B2 B2 B1 SC SC SC SC B1 SC SC SC
POP 12HR 40 40 40 40 40 10 10 5 5
RAIN SHWRS C C S C C C C C C
TSTMS C C S C C C C
$$
VAZ042-200900-
WASHINGTON DULLES AIRPORT-LOUDOUN VA
38.96N 77.45W ELEV. 321 FT
1031 PM EDT SUN MAY 19 2013
DATE 05/19/13 MON 05/20/13 TUE 05/21/13 WED
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 65 81 65 85 66
TEMP 67 66 66 70 76 80 80 75 71 68 67 71 79 83 83 78 73 70 68 73
DEWPT 62 62 63 62 63 64 64 64 63 63 62 64 66 66 65 66 66 65 65 65
RH 84 87 90 76 64 58 58 69 76 84 84 79 64 57 55 67 79 84 90 76
WIND DIR SE S S S S S S S S S SW SW SW SW SW S SW SW SW SW
WIND SPD 5 6 6 8 8 9 10 8 5 3 2 2 2 3 2 2 3 2 2 3
CLOUDS OV OV OV B2 B2 B2 B2 B2 B1 B1 B1 B1 SC SC B1 B1 B1 B1 B1 SC
POP 12HR 40 40 30 10 10
QPF 12HR 0.02 0.10 0 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE S
RAIN SHWRS C C S C C C C
TSTMS C C C
OBVIS PF PF
HEAT INDEX 81 81 85 85
MAX HEAT 81 82 85 86
DATE 05/22 THU 05/23/13 FRI 05/24/13 SAT 05/25/13 SUN 05/26/13
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 88 67 84 64 77 56 71 53 74
TEMP 86 81 72 72 83 77 68 68 76 70 61 61 70 65 57 59 72 67
DEWPT 66 66 65 66 66 65 63 62 59 54 49 47 43 49 46 47 47 47
PWIND DIR SW SW SW SW W N N N NW
WIND CHAR LT LT GN LT LT LT LT LT GN
AVG CLOUDS SC B1 B1 SC B1 B2 B2 B2 B2 B1 SC SC SC SC B1 SC B1 B1
POP 12HR 10 10 30 40 40 10 10 5 5
RAIN SHWRS C C C C C C
TSTMS C C C C
$$
VAZ037-200900-
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA
38.14N 78.45W ELEV. 640 FT
1031 PM EDT SUN MAY 19 2013
DATE 05/19/13 MON 05/20/13 TUE 05/21/13 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 66 81 65 86 67
TEMP 68 67 67 71 77 80 80 75 71 68 67 71 80 84 84 79 74 71 69 72
DEWPT 63 62 62 62 63 64 64 64 63 62 61 63 66 66 66 66 65 64 63 65
RH 84 84 84 73 62 58 58 69 76 81 81 76 62 55 55 64 74 79 81 79
WIND DIR S S S S S S S S S W NW W SW S S S S SW SW SW
WIND SPD 5 6 5 5 6 8 8 6 4 2 2 2 2 4 4 3 3 2 3 4
CLOUDS OV OV OV B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC B1 B1 B1 SC SC SC
POP 12HR 60 40 30 10 10
QPF 12HR 0.06 0.14 0 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE S
RAIN SHWRS L C C C C C C
TSTMS S C C C
OBVIS PF PF
HEAT INDEX 81 81 82 86 86
MAX HEAT 81 82 86 87
DATE 05/22 THU 05/23/13 FRI 05/24/13 SAT 05/25/13 SUN 05/26/13
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 84 67 84 65 78 57 72 52 74
TEMP 83 78 71 72 83 77 69 69 77 71 62 62 71 65 56 59 72 67
DEWPT 66 66 65 65 65 64 62 61 59 55 51 47 43 50 44 47 47 47
PWIND DIR SW SW SW SW W N N N NW
WIND CHAR LT LT GN LT LT LT LT LT LT
AVG CLOUDS SC SC B1 SC B1 B2 B2 B1 B1 B1 SC FW SC SC B1 SC SC SC
POP 12HR 10 10 30 40 40 10 10 5 5
RAIN SHWRS C C C C C C
TSTMS C C C C
$$
MDZ003-200900-
HAGERSTOWN AIRPORT-WASHINGTON MD
39.71N 77.73W ELEV. 705 FT
1031 PM EDT SUN MAY 19 2013
DATE 05/19/13 MON 05/20/13 TUE 05/21/13 WED
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 64 80 65 84 67
TEMP 66 65 65 69 75 79 79 75 71 68 67 71 79 82 83 78 73 71 69 72
DEWPT 62 61 62 60 62 63 63 63 62 61 60 63 65 65 65 65 64 63 62 64
RH 87 87 90 73 64 58 58 66 73 78 78 76 62 56 55 64 73 76 78 76
WIND DIR SE S S S S S S S S S W W SW SW W S S W W SW
WIND SPD 8 8 6 6 5 6 6 5 5 1 1 1 3 2 2 2 3 1 1 2
CLOUDS OV OV OV B2 B2 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B2 B2 B1
POP 12HR 30 30 30 20 40
QPF 12HR 0.02 0.03 0 0.02 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE S
RAIN SHWRS C S S S C C C S S C
TSTMS C C C S S
OBVIS PF PF
HEAT INDEX 84 85
MAX HEAT 81 84 85
DATE 05/22 THU 05/23/13 FRI 05/24/13 SAT 05/25/13 SUN 05/26/13
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 85 67 82 62 74 55 71 52 74
TEMP 84 79 71 72 81 75 66 66 73 67 59 60 70 64 56 59 72 67
DEWPT 64 65 64 65 65 64 61 59 57 52 47 44 41 47 42 43 43 43
PWIND DIR SW SW SW SW NW N N N NW
WIND CHAR LT LT LT LT LT LT LT LT GN
AVG CLOUDS B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC
POP 12HR 40 40 40 40 40 10 10 5 5
RAIN SHWRS C C S C C C C C C
TSTMS C C S C C C C
$$