379
FOUS51 KLWX 172102
PFMLWX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
502 PM EDT FRI APR 17 2026
VAZ054-180800-
REAGAN NATIONAL AIRPORT-ARLINGTON VA
38.86N 77.03W ELEV. 66 FT
502 PM EDT FRI APR 17 2026
DATE 04/17/26 SAT 04/18/26 SUN 04/19/26 MON
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 61 81 53 60 43
TEMP 76 70 65 63 63 71 79 81 71 66 63 60 56 55 54 57 55 50 46 44 46
DEWPT 53 55 56 57 57 57 56 56 56 56 56 55 49 42 37 31 28 28 30 30 31
RH 45 59 73 81 81 61 45 42 59 70 78 84 77 61 52 37 35 42 53 57 55
WIND DIR N NE NE NE E SE SE SE SE SE SE NW NW NW NW NW NW NW W W NW
WIND SPD 8 4 3 4 8 9 14 17 17 12 8 14 24 21 16 16 14 10 8 10 12
WIND GUST 33 26
CLOUDS FW FW FW FW SC SC SC SC B1 B2 B2 OV OV OV B2 B1 FW FW FW SC SC
POP 12HR 0 20 60 80 5
QPF 12HR 0 0 0.09 0.14 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S L L D D C C
HEAT INDEX 81
MAX HEAT 80 81
DATE 04/20 TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 57 38 63 52 76 54 76 54 79
TEMP 55 52 41 42 58 59 53 54 73 70 60 57 74 70 58 58 76 73
DEWPT 25 19 20 23 23 28 36 41 44 45 45 45 43 44 46 48 46 47
PWIND DIR NW N SW S W N NE SE NW
WIND CHAR BZ LT LT GN GN LT LT LT LT
AVG CLOUDS SC FW FW CL CL FW SC SC SC SC SC FW SC FW FW FW SC SC
POP 12HR 10 5 0 10 20 10 10 5 10
RAIN SHWRS S
TSTMS S
MDZ013-180800-
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD
39.19N 76.67W ELEV. 154 FT
502 PM EDT FRI APR 17 2026
DATE 04/17/26 SAT 04/18/26 SUN 04/19/26 MON
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 58 77 50 61 41
TEMP 73 68 63 59 59 65 74 77 70 62 58 57 55 55 54 56 53 48 43 42 44
DEWPT 54 56 56 56 56 57 57 56 56 55 54 55 50 43 37 32 29 29 30 31 31
RH 51 65 78 90 90 75 55 48 61 78 86 93 83 64 52 40 39 47 60 65 60
WIND DIR N N NE E E E SE SE SE SE E N NW NW NW NW NW NW W W NW
WIND SPD 3 2 2 3 4 5 9 10 9 5 3 5 13 14 13 11 6 5 4 5 6
WIND GUST 27
CLOUDS FW FW SC SC B1 B1 SC SC B1 B2 OV OV OV OV B2 B1 FW FW FW SC SC
POP 12HR 0 20 50 80 5
QPF 12HR 0 0 0.12 0.14 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C C D D C C
DATE 04/20 TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 55 36 61 49 74 52 73 52 78
TEMP 53 50 40 39 56 56 51 52 72 69 57 55 71 67 56 56 76 71
DEWPT 27 22 23 23 25 32 37 41 47 48 47 45 45 47 48 48 48 49
PWIND DIR NW N S S W N NE E NW
WIND CHAR GN LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC FW CL CL FW SC SC SC SC SC FW FW FW FW FW SC SC
POP 12HR 10 0 0 10 20 10 5 5 10
RAIN SHWRS S
TSTMS S
MDZ011-180800-
BALTIMORE INNER HARBOR-BALTIMORE CITY MD
39.28N 76.61W ELEV. 20 FT
502 PM EDT FRI APR 17 2026
DATE 04/17/26 SAT 04/18/26 SUN 04/19/26 MON
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 61 77 53 62 44
TEMP 75 69 65 61 62 66 73 77 71 63 59 59 55 56 55 57 54 50 46 44 46
DEWPT 52 53 54 54 54 53 53 53 52 53 51 54 46 39 33 28 26 26 27 29 29
RH 45 57 68 78 75 63 49 43 51 70 75 83 72 53 43 33 34 39 47 55 51
WIND DIR N N NE E E SE SE SE SE SE E NW NW NW NW NW NW NW W W NW
WIND SPD 2 2 2 2 3 5 9 10 9 5 2 4 13 16 12 11 6 4 3 4 5
WIND GUST 28
CLOUDS FW FW SC B1 B1 B1 SC SC B1 B2 OV OV OV OV B2 B1 FW FW FW SC SC
POP 12HR 0 20 60 80 10
QPF 12HR 0 0 0.14 0.14 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S L L D D C C
DATE 04/20 TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 56 38 61 51 74 53 73 54 76
TEMP 53 50 42 41 56 56 52 53 71 68 58 55 70 67 57 56 73 70
DEWPT 22 18 20 21 21 28 36 39 43 44 44 41 40 42 44 44 44 45
PWIND DIR NW N S S W N NE E NW
WIND CHAR GN LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC FW CL CL FW SC SC SC SC SC FW FW FW FW FW SC SC
POP 12HR 10 0 0 20 20 10 5 5 10
RAIN SHWRS S S
TSTMS S
WVZ052-180800-
MARTINSBURG AIRPORT-BERKELEY WV
39.41N 77.98W ELEV. 558 FT
502 PM EDT FRI APR 17 2026
DATE 04/17/26 SAT 04/18/26 SUN 04/19/26 MON
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 56 84 49 60 39
TEMP 72 64 58 56 60 72 82 84 77 70 65 56 51 50 55 57 52 47 42 39 42
DEWPT 49 50 50 50 53 55 54 53 54 56 55 48 40 34 29 25 23 24 26 26 27
RH 44 60 75 80 78 55 38 34 45 61 70 74 66 54 37 29 32 40 53 59 55
WIND DIR N N N N SE SE S S S S NW NW NW NW NW NW NW W W W NW
WIND SPD 3 1 0 0 2 9 13 13 10 6 5 12 17 14 14 16 10 8 5 6 10
WIND GUST 29 28 27 27
CLOUDS FW FW SC FW SC SC SC B1 B2 OV OV OV OV B2 B1 SC FW FW B1 SC SC
POP 12HR 0 50 90 60 10
QPF 12HR 0 0.04 0.33 0.05 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L L D D L L S S
DATE 04/20 TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 55 30 64 47 75 48 75 49 79
TEMP 52 49 36 36 58 58 49 52 71 67 54 53 71 68 55 54 75 72
DEWPT 20 16 17 19 23 28 34 40 44 45 43 43 43 44 44 44 44 45
PWIND DIR NW NW S S W NW N N NW
WIND CHAR GN LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW CL FW FW SC SC SC SC SC FW FW FW FW FW FW SC
POP 12HR 10 0 5 20 20 10 10 5 20
RAIN SHWRS S S S S
TSTMS S
VAZ506-180800-
WASHINGTON DULLES AIRPORT-LOUDOUN VA
38.96N 77.45W ELEV. 321 FT
502 PM EDT FRI APR 17 2026
DATE 04/17/26 SAT 04/18/26 SUN 04/19/26 MON
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 59 84 51 60 41
TEMP 75 68 62 61 61 72 80 82 75 69 64 58 53 53 54 57 54 48 43 42 44
DEWPT 54 55 56 56 58 58 56 57 57 58 58 54 47 41 37 31 28 28 30 31 32
RH 48 63 81 84 90 61 44 43 54 68 81 86 80 64 52 37 36 46 60 65 62
WIND DIR N NE N NE E SE S S SE SE N NW NW NW NW NW NW NW W W NW
WIND SPD 4 2 2 2 3 5 10 11 12 8 5 10 17 16 13 13 9 6 5 5 8
WIND GUST 28 28 24
CLOUDS CL FW SC FW SC SC SC SC B1 B2 B2 OV OV OV B2 B1 FW FW FW SC SC
POP 12HR 0 20 70 80 10
QPF 12HR 0 0 0.15 0.11 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C L L D D C C
HEAT INDEX 80 82
MAX HEAT 80 80 82
DATE 04/20 TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 55 34 63 50 76 51 76 53 81
TEMP 53 50 39 38 57 59 52 53 73 70 58 55 73 70 58 57 78 74
DEWPT 24 21 21 23 26 31 37 41 49 50 47 48 48 48 49 51 50 50
PWIND DIR NW N SW S W N NW SE N
WIND CHAR GN LT LT LT GN LT LT LT LT
AVG CLOUDS SC SC FW CL FW FW SC SC SC SC SC SC SC FW FW FW SC SC
POP 12HR 10 0 0 10 20 10 10 5 10
RAIN SHWRS S
TSTMS S
VAZ037-180800-
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA
38.14N 78.45W ELEV. 640 FT
502 PM EDT FRI APR 17 2026
DATE 04/17/26 SAT 04/18/26 SUN 04/19/26 MON
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 58 90 56 64 40
TEMP 76 68 62 60 62 76 86 88 83 74 68 63 57 57 58 59 55 50 45 42 44
DEWPT 47 48 49 50 52 52 49 48 51 51 52 51 46 37 31 26 23 24 26 25 27
RH 36 49 62 69 70 43 28 25 33 44 57 65 67 47 36 28 29 36 47 50 51
WIND DIR NE N N NE NE S S S S S W NW NW NW NW NW NW NW W W NW
WIND SPD 2 2 2 1 1 5 9 10 5 5 5 6 10 10 9 11 8 5 4 4 5
WIND GUST 21 19
CLOUDS FW FW SC SC FW FW FW SC B1 B2 OV OV OV B2 B1 B1 FW FW FW FW SC
POP 12HR 0 10 60 70 5
QPF 12HR 0 0 0.11 0.08 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C L L L L C C
DATE 04/20 TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 61 34 66 48 80 52 79 52 82
TEMP 58 53 39 39 61 60 52 53 77 73 58 56 77 72 58 57 79 74
DEWPT 19 17 19 21 23 27 32 39 42 43 44 45 45 45 45 47 46 46
PWIND DIR NW N S SW W NW E N SW
WIND CHAR GN LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW CL CL CL FW FW FW FW SC SC FW FW SC FW FW FW FW
POP 12HR 5 0 0 5 20 5 10 5 10
RAIN SHWRS S
MDZ003-180800-
HAGERSTOWN AIRPORT-WASHINGTON MD
39.71N 77.73W ELEV. 705 FT
502 PM EDT FRI APR 17 2026
DATE 04/17/26 SAT 04/18/26 SUN 04/19/26 MON
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 81 46 56 38
TEMP 71 64 59 56 59 71 78 81 75 68 64 55 48 48 52 54 49 44 40 39 41
DEWPT 54 54 53 54 57 59 59 58 58 59 60 52 44 39 33 29 27 27 29 29 30
RH 55 70 80 93 93 66 52 46 55 73 87 90 86 71 48 38 42 51 64 67 65
WIND DIR NE E NE NE SE S S S S S SW NW NW NW NW NW NW W W W NW
WIND SPD 3 2 2 2 2 6 12 12 9 6 5 9 13 12 13 13 10 6 5 4 8
WIND GUST 20 20 26 26 25 27
CLOUDS FW FW SC FW FW FW SC B1 B2 OV OV OV OV B2 B1 SC FW FW B1 B1 SC
POP 12HR 0 50 90 60 10
QPF 12HR 0 0.03 0.32 0.06 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L L D D L L S S
HEAT INDEX 81
MAX HEAT 81
DATE 04/20 TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 50 31 61 47 73 48 73 50 78
TEMP 49 47 35 36 56 56 50 51 70 66 54 53 71 66 54 55 76 72
DEWPT 24 19 20 21 27 31 36 41 48 47 45 45 46 47 46 46 49 49
PWIND DIR NW NW S S W N N NE NW
WIND CHAR GN LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW CL FW SC SC B1 SC SC SC SC FW FW FW FW SC SC
POP 12HR 10 0 5 20 20 10 10 5 10
RAIN SHWRS S S
TSTMS S
MDZ017-180800-
PATUXENT RIVER NAS MD
38.29N 76.41W ELEV. 39 FT
502 PM EDT FRI APR 17 2026
DATE 04/17/26 SAT 04/18/26 SUN 04/19/26 MON
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 58 72 55 66 45
TEMP 70 66 62 60 61 66 72 68 59 62 64 62 61 62 57 56 54 52 50 47 49
DEWPT 55 55 55 55 56 56 56 56 55 56 56 56 53 47 43 38 36 34 35 34 33
RH 59 68 78 84 84 70 57 65 87 81 75 81 75 58 59 51 50 50 56 60 54
WIND DIR N NE NW NE E SE SE SE SE SE S SW NW NW NW NW NW NW W W NW
WIND SPD 2 2 2 3 4 5 10 11 10 10 8 9 14 18 14 11 5 6 6 8 9
CLOUDS FW FW FW FW SC SC FW SC SC B1 B2 B2 OV OV OV B2 SC FW FW FW SC
POP 12HR 0 5 30 80 10
QPF 12HR 0 0 0.01 0.10 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C D D L L
DATE 04/20 TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 61 40 62 52 75 56 73 55 77
TEMP 59 54 45 44 58 56 55 55 73 68 61 58 70 66 58 58 74 69
DEWPT 30 28 28 29 29 35 41 43 50 51 50 49 49 50 50 51 51 52
PWIND DIR NW N SE S W N NE S SE
WIND CHAR GN LT LT GN GN LT LT LT LT
AVG CLOUDS SC SC FW CL CL FW FW SC SC SC SC FW FW FW FW FW FW SC
POP 12HR 10 5 0 10 20 10 5 5 10
RAIN SHWRS S
WVZ502-180800-
PETERSBURG WV
38.99N 79.15W ELEV. 963 FT
502 PM EDT FRI APR 17 2026
DATE 04/17/26 SAT 04/18/26 SUN 04/19/26 MON
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 87 43 58 35
TEMP 74 63 58 55 56 75 85 85 76 69 62 50 44 48 54 56 51 45 42 37 37
DEWPT 49 51 50 49 51 52 51 53 57 59 57 48 38 33 28 25 24 25 29 28 27
RH 41 65 75 80 83 45 31 33 52 70 84 93 79 56 36 30 34 45 60 70 67
WIND DIR NE SW SW S S S SW S S W W NW NW NW NW NW NW W W W NW
WIND SPD 2 1 1 2 3 6 10 9 6 5 5 9 12 12 13 16 9 6 5 6 6
WIND GUST 19 24 26 27 19
CLOUDS FW SC SC FW SC B1 SC B1 OV OV OV OV OV B2 SC FW SC SC SC SC SC
POP 12HR 0 30 90 40 20
QPF 12HR 0 0.05 0.14 0.01 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S D D D D C C S S S S
TSTMS S S
DATE 04/20 TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 54 29 71 48 75 48 80 50 83
TEMP 50 48 34 33 66 64 54 53 73 69 55 53 77 72 57 55 80 74
DEWPT 21 20 21 21 28 35 39 42 47 47 47 47 49 49 48 48 49 49
PWIND DIR NW W SW SW W W NW SW W
WIND CHAR GN LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW CL FW FW SC SC SC B1 SC SC FW SC SC FW FW SC
POP 12HR 10 0 5 10 30 10 20 5 20
RAIN SHWRS S C S S
TSTMS S S
MDZ014-180800-
ANNAPOLIS MD
38.99N 76.49W ELEV. 7 FT
502 PM EDT FRI APR 17 2026
DATE 04/17/26 SAT 04/18/26 SUN 04/19/26 MON
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 57 72 50 62 43
TEMP 72 65 62 59 59 65 70 71 63 60 58 57 58 57 55 56 54 49 46 44 47
DEWPT 55 55 55 55 54 56 57 57 55 54 54 54 51 45 40 36 32 32 32 33 32
RH 55 70 78 87 83 73 63 61 75 81 86 90 77 64 57 47 43 52 58 65 56
WIND DIR N N NE E E SE SE SE SE SE SE N NW NW NW NW NW NW W W W
WIND SPD 2 2 2 3 4 5 8 11 10 6 4 5 13 16 13 11 8 5 5 5 8
WIND GUST 28
CLOUDS FW FW SC SC B1 SC SC SC B1 B2 OV OV OV OV B2 B1 SC FW FW FW SC
POP 12HR 0 10 50 80 10
QPF 12HR 0 0 0.05 0.14 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C D D C C
DATE 04/20 TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 56 38 59 50 71 53 70 52 72
TEMP 54 52 42 41 52 55 52 52 67 66 57 54 66 64 56 55 69 68
DEWPT 30 24 25 25 27 33 39 41 46 47 47 45 44 45 47 47 47 49
PWIND DIR NW N SE S W N NE SE S
WIND CHAR GN LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC FW CL CL FW SC SC SC SC SC FW SC FW FW FW SC SC
POP 12HR 10 5 0 10 20 10 5 5 10
RAIN SHWRS S
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