179
FOUS51 KLWX 181055
PFMLWX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
655 AM EDT SAT APR 18 2026
VAZ054-182000-
REAGAN NATIONAL AIRPORT-ARLINGTON VA
38.86N 77.03W ELEV. 66 FT
655 AM EDT SAT APR 18 2026
DATE SAT 04/18/26 SUN 04/19/26 MON 04/20/26
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 84 55 58 44 57
TEMP 63 72 80 82 72 67 64 62 56 54 54 58 56 51 48 45 46 53 55 56 52
DEWPT 56 56 56 55 54 55 55 55 46 40 33 28 26 27 29 30 30 26 23 19 17
RH 78 57 44 40 53 65 73 78 69 59 45 32 31 39 47 55 53 35 29 23 25
WIND DIR E SE SE SE SE SE SE NW NW NW NW NW NW NW W W NW NW NW NW NW
WIND SPD 9 10 16 18 18 13 9 16 24 21 16 16 14 10 8 10 12 16 16 17 14
WIND GUST 33 26
CLOUDS FW FW SC SC B2 B2 B2 B2 OV OV B2 SC FW FW FW SC FW SC SC SC FW
POP 12HR 5 50 80 5 10
QPF 12HR 0 0.07 0.12 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C D D S S
HEAT INDEX 80
MAX HEAT 80 82
DATE TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 60 50 74 54 77 56 82
TEMP 41 40 56 57 52 52 69 68 59 56 73 70 60 59 79 75
DEWPT 20 21 21 26 33 38 44 46 45 44 43 44 46 48 49 51
PWIND DIR N SW S W N N S SW
WIND CHAR GN LT GN GN LT LT LT LT
AVG CLOUDS FW CL CL FW FW SC SC B1 SC FW FW FW SC FW FW SC
POP 12HR 5 0 10 30 5 5 5 10
RAIN SHWRS S C
MDZ013-182000-
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD
39.19N 76.67W ELEV. 154 FT
655 AM EDT SAT APR 18 2026
DATE SAT 04/18/26 SUN 04/19/26 MON 04/20/26
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 79 54 57 42 55
TEMP 60 66 76 77 69 63 59 59 55 53 53 57 54 49 45 43 44 52 53 54 50
DEWPT 57 57 57 56 56 55 56 55 49 44 38 31 29 30 31 30 31 30 26 22 21
RH 90 73 52 48 63 75 90 87 80 71 57 37 38 48 58 60 60 43 35 28 31
WIND DIR E E SE SE SE SE E N NW NW NW NW NW NW W W NW NW NW NW NW
WIND SPD 5 6 10 11 10 6 4 6 13 14 13 11 6 5 4 5 6 10 12 11 8
WIND GUST 27
CLOUDS B1 B1 SC FW B1 B2 OV OV OV OV B2 B1 FW FW SC SC FW SC SC SC FW
POP 12HR 5 50 80 5 20
QPF 12HR 0 0.09 0.11 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C D D C C S S
DATE TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 59 48 71 50 75 53 79
TEMP 39 39 55 55 50 51 68 64 56 53 72 68 57 57 76 72
DEWPT 23 22 23 31 36 38 47 48 45 44 44 46 46 47 51 52
PWIND DIR N SE S W N N SE S
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW CL CL FW FW SC SC B1 SC FW CL FW SC SC FW SC
POP 12HR 5 0 10 20 5 5 5 10
RAIN SHWRS S S
MDZ011-182000-
BALTIMORE INNER HARBOR-BALTIMORE CITY MD
39.28N 76.61W ELEV. 20 FT
655 AM EDT SAT APR 18 2026
DATE SAT 04/18/26 SUN 04/19/26 MON 04/20/26
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 78 55 58 45 55
TEMP 62 67 75 76 69 64 61 60 55 55 55 58 55 51 48 45 46 52 53 55 51
DEWPT 54 54 54 52 52 52 53 53 46 39 33 27 26 26 28 28 28 24 20 17 17
RH 75 63 48 43 55 65 75 78 72 55 43 30 32 37 46 51 49 33 27 22 26
WIND DIR E SE SE SE SE SE E NW NW NW NW NW NW NW W W NW NW NW NW NW
WIND SPD 4 6 10 11 10 6 3 5 13 16 12 11 6 4 3 4 5 10 12 11 6
WIND GUST 28
CLOUDS B1 SC SC FW B2 B2 OV OV OV OV B2 B1 FW FW SC SC FW SC SC SC FW
POP 12HR 5 60 80 5 20
QPF 12HR 0 0.08 0.10 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C D D C C S S
DATE TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 37 58 50 71 53 74 55 78
TEMP 41 39 55 56 51 52 68 67 58 55 71 68 60 57 75 72
DEWPT 20 20 19 26 34 37 42 44 44 42 40 42 45 45 46 49
PWIND DIR N S S W N N SE S
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW CL CL FW FW SC SC B1 SC FW FW FW SC SC FW SC
POP 12HR 5 0 20 20 5 5 5 10
RAIN SHWRS S S S
WVZ052-182000-
MARTINSBURG AIRPORT-BERKELEY WV
39.41N 77.98W ELEV. 558 FT
655 AM EDT SAT APR 18 2026
DATE SAT 04/18/26 SUN 04/19/26 MON 04/20/26
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 84 50 57 38 53
TEMP 60 74 82 83 79 70 66 57 51 50 55 57 52 47 43 40 42 47 51 52 47
DEWPT 53 55 53 53 54 56 55 47 40 34 29 26 24 25 28 28 27 25 19 17 15
RH 78 51 37 36 42 61 68 69 66 54 37 30 33 42 55 62 55 42 28 25 27
WIND DIR SE SE S S S S NW NW NW NW NW NW NW W W W NW NW NW NW NW
WIND SPD 3 10 14 14 11 8 6 13 17 14 14 16 10 8 5 6 10 12 13 14 9
WIND GUST 25 29 28 27 27 25
CLOUDS FW FW SC B1 B2 B2 OV OV OV B2 SC FW FW SC B1 SC FW SC SC SC FW
POP 12HR 20 90 60 20 20
QPF 12HR 0 0.36 0.04 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C D C L L S S S S
TSTMS S
DATE TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 30 61 45 71 48 76 50 82
TEMP 34 35 57 57 48 49 69 66 54 52 73 69 56 55 78 73
DEWPT 17 18 21 25 30 36 44 43 43 43 43 44 44 45 49 51
PWIND DIR NW S S W NW NE S SW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW CL FW FW FW SC B1 B1 FW FW FW FW FW FW FW SC
POP 12HR 0 0 20 30 5 5 5 20
RAIN SHWRS S C C S
TSTMS S S
VAZ506-182000-
WASHINGTON DULLES AIRPORT-LOUDOUN VA
38.96N 77.45W ELEV. 321 FT
655 AM EDT SAT APR 18 2026
DATE SAT 04/18/26 SUN 04/19/26 MON 04/20/26
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 86 51 58 41 55
TEMP 63 76 84 86 78 70 66 60 53 52 54 58 54 49 44 43 44 51 53 54 49
DEWPT 57 59 57 57 57 57 59 55 46 42 35 30 29 28 31 32 31 30 26 22 20
RH 81 56 40 37 48 63 78 84 77 69 48 34 38 44 60 65 60 44 35 28 31
WIND DIR E SE S S SE SE N NW NW NW NW NW NW NW W W NW NW NW NW NW
WIND SPD 4 6 11 12 13 9 6 11 17 16 13 13 9 6 5 5 8 11 13 13 9
WIND GUST 28 28 24
CLOUDS FW FW SC SC SC B1 B2 OV OV OV B1 SC FW FW SC SC FW SC SC SC FW
POP 12HR 5 70 70 10 10
QPF 12HR 0 0.12 0.13 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S L C L L S S
DATE TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 33 62 49 73 51 76 53 83
TEMP 37 37 56 58 51 52 70 67 56 53 73 69 57 57 80 76
DEWPT 21 22 25 29 34 38 47 48 46 45 46 47 47 49 52 55
PWIND DIR N SW S W NW N S SW
WIND CHAR LT LT LT GN LT LT LT LT
AVG CLOUDS FW CL FW FW FW SC B1 B1 SC FW FW FW FW FW FW SC
POP 12HR 0 0 20 30 5 5 5 10
RAIN SHWRS S S C
VAZ037-182000-
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA
38.14N 78.45W ELEV. 640 FT
655 AM EDT SAT APR 18 2026
DATE SAT 04/18/26 SUN 04/19/26 MON 04/20/26
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 88 56 61 41 59
TEMP 62 77 85 88 82 75 70 64 57 55 58 61 56 50 46 43 45 54 58 57 51
DEWPT 52 54 52 50 50 52 54 53 45 38 30 24 22 22 24 28 29 25 21 17 16
RH 70 45 32 27 33 45 57 67 64 53 34 24 26 33 42 55 53 32 23 21 24
WIND DIR NE S S S S S W NW NW NW NW NW NW NW W W NW NW NW NW N
WIND SPD 2 6 10 11 6 6 6 8 10 10 9 11 8 5 4 4 5 9 10 11 8
WIND GUST 21 19
CLOUDS CL FW SC FW SC B2 B2 OV OV B2 SC FW FW CL FW SC FW SC SC FW FW
POP 12HR 10 60 60 5 5
QPF 12HR 0 0.16 0.09 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L C L L
DATE TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 33 64 46 77 51 80 54 85
TEMP 39 37 60 59 50 51 75 71 56 55 76 73 60 59 83 77
DEWPT 19 20 19 24 30 36 42 44 44 46 46 45 45 48 47 47
PWIND DIR N SW SW W NW E N SW
WIND CHAR LT LT LT GN LT LT LT LT
AVG CLOUDS FW CL CL FW FW FW SC SC FW FW FW FW FW FW FW SC
POP 12HR 0 0 5 20 5 5 0 10
RAIN SHWRS S S
TSTMS S
MDZ003-182000-
HAGERSTOWN AIRPORT-WASHINGTON MD
39.71N 77.73W ELEV. 705 FT
655 AM EDT SAT APR 18 2026
DATE SAT 04/18/26 SUN 04/19/26 MON 04/20/26
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 82 47 55 38 50
TEMP 60 72 79 82 76 68 64 56 48 48 52 55 50 45 41 40 41 47 49 50 45
DEWPT 56 59 58 57 57 59 59 50 43 38 32 28 26 27 31 30 30 27 22 19 19
RH 87 64 49 43 52 73 84 80 83 68 46 35 39 49 67 67 65 45 34 29 35
WIND DIR SE S S S S S SW NW NW NW NW NW NW W W W NW NW NW NW NW
WIND SPD 3 8 13 13 10 8 6 10 13 12 13 13 10 6 5 4 8 10 12 12 8
WIND GUST 24 20 20 26 26 25 27 20 23 23
CLOUDS FW FW SC B1 B2 B2 OV OV OV B2 SC FW FW SC B1 SC FW FW SC SC FW
POP 12HR 20 90 60 20 20
QPF 12HR 0 0.56 0.05 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C D L L L S S S S
TSTMS S
HEAT INDEX 82
MAX HEAT 82
DATE TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 30 59 46 70 47 74 51 80
TEMP 33 35 55 55 49 50 67 64 53 51 72 67 55 56 78 72
DEWPT 18 20 26 30 33 38 47 45 44 44 45 46 45 47 53 54
PWIND DIR NW SW S W N N SE SW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW CL FW FW SC B1 B1 SC FW FW FW FW FW FW FW SC
POP 12HR 0 0 20 30 5 5 5 20
RAIN SHWRS S S C S S
TSTMS S S
MDZ017-182000-
PATUXENT RIVER NAS MD
38.29N 76.41W ELEV. 39 FT
655 AM EDT SAT APR 18 2026
DATE SAT 04/18/26 SUN 04/19/26 MON 04/20/26
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 76 61 62 46 60
TEMP 61 68 73 72 64 64 65 64 62 60 56 58 55 53 51 48 50 57 60 58 52
DEWPT 56 57 57 57 56 57 58 57 52 46 42 38 35 35 35 34 34 32 31 30 27
RH 84 68 57 59 75 78 78 78 70 60 59 47 47 50 54 58 54 38 33 34 38
WIND DIR E SE SE SE SE SE S SW NW NW NW NW NW NW W W NW NW NW NW N
WIND SPD 5 6 11 12 11 11 9 10 14 18 14 11 5 6 6 8 9 10 12 11 9
CLOUDS CL FW SC SC SC B2 B1 B2 OV OV B2 B1 FW FW CL FW SC SC SC SC FW
POP 12HR 5 30 80 5 20
QPF 12HR 0 0 0.07 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C D D C C S S
DATE TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 61 51 76 54 73 55 79
TEMP 44 44 58 56 55 56 72 66 59 57 70 66 60 60 75 70
DEWPT 27 28 27 33 40 41 49 51 50 47 47 48 51 50 53 54
PWIND DIR N E S SW NW NE S S
WIND CHAR GN LT GN GN LT LT LT LT
AVG CLOUDS FW FW CL FW FW FW FW SC SC FW FW FW FW FW FW SC
POP 12HR 5 0 10 20 10 0 5 5
RAIN SHWRS S
WVZ502-182000-
PETERSBURG WV
38.99N 79.15W ELEV. 963 FT
655 AM EDT SAT APR 18 2026
DATE SAT 04/18/26 SUN 04/19/26 MON 04/20/26
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 88 44 57 36 52
TEMP 57 76 85 88 79 70 64 51 44 48 54 57 52 46 42 38 38 45 50 52 46
DEWPT 51 53 51 52 56 59 58 46 38 33 27 24 24 27 30 28 28 27 22 19 19
RH 80 45 31 29 45 68 81 83 79 56 35 28 33 47 62 67 67 49 33 27 34
WIND DIR S S SW S S W W NW NW NW NW NW NW W W W NW NW NW NW NW
WIND SPD 4 8 11 10 8 6 6 10 12 12 13 16 9 6 5 6 6 9 10 11 5
WIND GUST 21 24 26 27 19 19 20
CLOUDS FW SC SC B1 B2 OV OV OV OV B1 FW FW SC SC B1 B1 FW SC SC SC FW
POP 12HR 30 90 30 30 10
QPF 12HR 0.04 0.11 0.01 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C D D C C C S S C C
TSTMS S S
DATE TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 27 69 47 74 49 81 52 85
TEMP 32 33 65 62 52 51 71 67 53 52 78 72 56 56 82 75
DEWPT 20 21 25 35 37 42 48 47 47 47 46 47 47 48 51 51
PWIND DIR W SW SW W W NW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW CL FW FW FW SC B1 B1 FW FW FW FW FW FW FW SC
POP 12HR 0 0 20 30 5 10 5 20
RAIN SHWRS S C C S
TSTMS S S
MDZ014-182000-
ANNAPOLIS MD
38.99N 76.49W ELEV. 7 FT
655 AM EDT SAT APR 18 2026
DATE SAT 04/18/26 SUN 04/19/26 MON 04/20/26
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 74 57 58 44 56
TEMP 59 64 72 72 65 62 59 59 58 55 54 57 54 50 47 45 46 50 54 55 51
DEWPT 55 55 57 56 56 55 54 54 49 43 38 33 32 32 32 33 32 29 26 24 24
RH 87 73 59 57 73 78 83 83 72 64 54 40 43 50 56 62 58 44 34 30 34
WIND DIR E SE SE SE SE SE SE N NW NW NW NW NW NW W W W NW NW NW NW
WIND SPD 5 6 9 12 11 8 5 6 13 16 13 11 8 5 5 5 8 10 12 11 9
WIND GUST 28
CLOUDS SC SC SC FW SC B2 OV B2 OV B2 B2 B1 FW FW FW SC FW FW SC SC FW
POP 12HR 5 50 80 5 20
QPF 12HR 0 0.03 0.11 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C D D C C S S
DATE TUE 04/21/26 WED 04/22/26 THU 04/23/26 FRI 04/24/26
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 57 49 69 52 70 54 75
TEMP 41 40 52 54 50 51 65 65 57 55 68 66 57 56 71 69
DEWPT 25 24 24 31 37 40 46 48 47 45 44 47 48 48 49 51
PWIND DIR N SE S W N NE SE SE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW CL CL FW FW SC SC B1 SC FW CL FW FW SC FW SC
POP 12HR 5 0 10 20 5 0 5 10
RAIN SHWRS S S
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