470
FOUS51 KLWX 201738
PFMLWX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
137 PM EDT WED AUG 20 2025
VAZ054-202000-
REAGAN NATIONAL AIRPORT-ARLINGTON VA
38.86N 77.03W ELEV. 66 FT
137 PM EDT WED AUG 20 2025
DATE WED 08/20/25 THU 08/21/25 FRI 08/22/25
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 80 72 78 65 83
TEMP 78 80 79 77 75 74 72 73 75 75 72 70 68 67 69 75 80 81 74
DEWPT 69 69 72 72 72 71 70 68 67 66 64 63 62 61 61 58 57 57 58
RH 74 69 79 85 90 90 93 84 76 74 76 78 81 81 76 55 45 44 57
WIND DIR SE SE E NE NE NE NE N NE N NE N N N N N NE E SE
WIND SPD 6 9 9 8 8 10 12 13 13 13 11 9 8 8 6 6 5 6 6
CLOUDS OV OV OV B2 B2 OV OV OV OV OV OV SC SC SC SC FW FW FW FW
POP 12HR 20 30 20 0 0
QPF 12HR 0 0.16 0 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE
RAIN SHWRS S S S C C S S S
HEAT INDEX 83 80 81
MAX HEAT 83 80 82
DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 TUE 08/26/25
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 65 84 69 84 69 84 64 80
TEMP 69 70 81 76 72 72 82 76 72 71 81 74 68 66 77 72
DEWPT 60 62 60 62 64 65 66 67 68 67 62 58 56 55 51 50
PWIND DIR S S S S S NW NW NW
WIND CHAR LT GN GN GN LT GN GN GN
AVG CLOUDS FW FW FW FW FW SC B1 B2 B1 SC SC SC FW FW FW SC
POP 12HR 0 5 20 50 40 20 5 0
RAIN SHWRS S S C C S S
TSTMS S S S
MDZ013-202000-
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD
39.19N 76.67W ELEV. 154 FT
137 PM EDT WED AUG 20 2025
DATE WED 08/20/25 THU 08/21/25 FRI 08/22/25
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 69 76 64 83
TEMP 75 76 76 73 72 71 69 71 74 73 71 68 66 65 66 75 80 80 74
DEWPT 72 72 74 73 72 70 68 69 69 68 66 64 62 61 61 59 58 58 60
RH 90 87 94100100 97 97 93 84 84 84 87 87 87 84 58 47 47 62
WIND DIR E SE E NE NE NE NE NE NE NE N N N N N N NE E SE
WIND SPD 5 6 5 5 5 8 10 12 12 12 9 5 5 5 5 5 5 5 3
CLOUDS OV OV B2 B2 OV OV OV OV OV OV B2 B1 SC SC FW CL FW FW FW
POP 12HR 40 40 20 0 0
QPF 12HR 0.02 0.26 0 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE
RAIN SHWRS C C S C C S S
HEAT INDEX 81 81
MAX HEAT 81 81
DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 TUE 08/26/25
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 64 83 68 84 67 83 61 79
TEMP 67 67 81 75 70 70 81 76 70 69 81 73 66 64 77 71
DEWPT 60 62 63 65 66 67 69 70 68 69 65 60 56 57 54 53
PWIND DIR S S S S SW W NW NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW SC B1 B2 B2 B1 SC SC FW FW FW SC
POP 12HR 0 0 20 50 50 30 5 0
RAIN SHWRS S S C C C S C
TSTMS S S S
MDZ011-202000-
BALTIMORE INNER HARBOR-BALTIMORE CITY MD
39.28N 76.61W ELEV. 20 FT
137 PM EDT WED AUG 20 2025
DATE WED 08/20/25 THU 08/21/25 FRI 08/22/25
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 80 73 81 68 87
TEMP 78 80 80 79 77 75 73 76 77 77 73 74 70 70 72 79 84 85 77
DEWPT 69 69 72 71 71 69 67 66 67 65 63 62 61 60 59 56 55 55 56
RH 74 69 77 77 82 82 81 71 71 67 71 66 73 71 64 45 37 36 48
WIND DIR SE SE E NE NE NE NE NE NE NE N N N N N N NE NE SE
WIND SPD 6 8 5 5 5 8 10 12 12 12 9 5 5 5 5 5 5 5 2
CLOUDS OV OV B2 B2 OV OV OV OV OV OV OV B1 SC SC FW CL FW FW FW
POP 12HR 40 50 20 0 0
QPF 12HR 0.03 0.37 0 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE
RAIN SHWRS C C C C C S S
HEAT INDEX 83 84
MAX HEAT 84 83 83 84
DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 TUE 08/26/25
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 70 87 73 88 72 88 67 84
TEMP 72 73 85 78 76 76 85 78 75 75 85 76 72 69 81 73
DEWPT 59 60 60 61 64 65 66 66 67 67 62 58 56 55 52 51
PWIND DIR S S S S SW W NW NW
WIND CHAR LT LT LT GN LT LT LT LT
AVG CLOUDS CL CL FW SC FW SC B1 B2 B2 B1 SC SC FW FW FW SC
POP 12HR 0 0 20 50 50 30 5 0
RAIN SHWRS S S C C C S C
TSTMS S S S
WVZ052-202000-
MARTINSBURG AIRPORT-BERKELEY WV
39.41N 77.98W ELEV. 558 FT
137 PM EDT WED AUG 20 2025
DATE WED 08/20/25 THU 08/21/25 FRI 08/22/25
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 66 75 62 81
TEMP 75 76 76 72 70 69 68 70 72 72 70 66 65 63 65 74 78 79 73
DEWPT 67 68 70 70 69 68 66 66 66 65 64 64 63 61 62 61 60 59 61
RH 76 76 82 93 97 97 93 87 81 79 81 93 93 93 90 64 54 50 66
WIND DIR SE SE NE NE NE N NE NE N NE NE N N N N N N E SE
WIND SPD 5 5 4 3 4 6 8 9 10 10 5 3 2 2 2 3 3 3 2
CLOUDS OV OV B2 OV OV OV OV OV OV B2 B1 B1 B2 B1 SC SC FW FW FW
POP 12HR 40 50 30 5 0
QPF 12HR 0.01 0.06 0.01 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C C C C C S S
TSTMS C C
DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 TUE 08/26/25
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 60 84 64 82 62 81 55 76
TEMP 64 65 80 75 67 67 79 73 65 66 78 71 59 60 74 67
DEWPT 58 59 63 63 62 64 67 68 65 64 57 54 53 53 51 50
PWIND DIR SE S S S SW W W NW
WIND CHAR LT LT LT LT LT LT LT GN
AVG CLOUDS FW FW SC SC SC B1 B2 B2 B1 SC FW SC FW FW FW SC
POP 12HR 0 20 30 70 30 20 5 5
RAIN SHWRS S S C C L C S
TSTMS S S C S
VAZ506-202000-
WASHINGTON DULLES AIRPORT-LOUDOUN VA
38.96N 77.45W ELEV. 321 FT
137 PM EDT WED AUG 20 2025
DATE WED 08/20/25 THU 08/21/25 FRI 08/22/25
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 80 69 76 63 83
TEMP 78 80 79 74 72 71 70 72 75 74 71 67 65 65 66 74 80 80 74
DEWPT 72 71 74 73 72 71 70 71 71 69 68 66 64 63 64 65 64 63 63
RH 82 74 85 97100100100 97 87 84 90 97 97 93 93 74 58 56 69
WIND DIR SE SE E E NE NE N N N N N N N N N N N NE E
WIND SPD 4 5 5 4 4 6 9 10 10 11 8 5 4 4 4 5 4 4 3
CLOUDS OV OV B2 B2 B2 OV OV OV OV OV B2 B1 B1 B1 SC FW FW FW FW
POP 12HR 30 40 20 0 0
QPF 12HR 0.01 0.17 0 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE
RAIN SHWRS C C S S C C S S
HEAT INDEX 83 82 81
MAX HEAT 83 82 83
DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 TUE 08/26/25
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 63 84 67 84 66 83 59 78
TEMP 65 66 80 76 69 69 80 74 69 68 81 71 63 62 75 68
DEWPT 59 62 66 65 64 67 72 71 69 68 64 59 55 56 55 53
PWIND DIR S S S S SW NW NW NW
WIND CHAR LT LT LT LT LT LT LT GN
AVG CLOUDS FW FW SC SC SC B1 B1 B2 B2 SC SC SC SC FW FW SC
POP 12HR 0 10 20 60 40 20 5 0
RAIN SHWRS S S L C S
TSTMS C S S
VAZ037-202000-
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA
38.14N 78.45W ELEV. 640 FT
137 PM EDT WED AUG 20 2025
DATE WED 08/20/25 THU 08/21/25 FRI 08/22/25
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 83 69 80 64 80
TEMP 80 83 78 73 71 71 71 75 78 78 73 68 66 65 66 74 78 79 73
DEWPT 66 67 70 70 70 70 70 70 68 68 66 65 64 63 63 63 63 62 63
RH 62 59 76 90 97 97 97 84 71 71 79 90 93 93 90 69 60 56 71
WIND DIR SE E E NE N NE NE NE NE NE NE N N N N NE NE E E
WIND SPD 4 4 4 3 4 5 8 10 10 10 8 5 3 2 2 4 4 5 3
CLOUDS OV B2 B2 B2 OV OV OV OV B2 B1 SC B1 B1 B1 SC SC B1 SC SC
POP 12HR 30 30 40 10 5
QPF 12HR 0 0.01 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C S S C S S S C C
TSTMS C C
HEAT INDEX 82 86
MAX HEAT 82 86
DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 TUE 08/26/25
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 63 82 65 83 64 83 57 78
TEMP 66 66 79 74 67 67 80 73 68 67 80 72 61 60 75 68
DEWPT 62 62 64 63 63 65 67 68 66 65 59 57 54 54 51 50
PWIND DIR SE S S S SW W NW NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC B1 SC SC SC SC B1 B2 B1 SC FW SC FW FW FW SC
POP 12HR 5 20 20 60 30 20 5 0
RAIN SHWRS S S S C L C S
TSTMS C S
MDZ003-202000-
HAGERSTOWN AIRPORT-WASHINGTON MD
39.71N 77.73W ELEV. 705 FT
137 PM EDT WED AUG 20 2025
DATE WED 08/20/25 THU 08/21/25 FRI 08/22/25
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 75 66 76 62 83
TEMP 73 75 75 72 70 68 67 70 73 72 71 66 65 63 65 74 79 79 74
DEWPT 69 69 72 71 69 67 67 67 68 67 65 65 64 62 63 63 62 61 61
RH 87 82 90 97 97 97100 90 84 84 81 97 97 97 93 69 56 54 64
WIND DIR SE SE E NE NE NE NE NE NE NE NE N N N N N N E SE
WIND SPD 5 5 5 5 5 6 8 9 10 10 6 4 3 3 3 3 4 3 3
CLOUDS OV OV OV OV OV OV OV B2 OV OV B1 B1 B1 B1 SC FW FW FW FW
POP 12HR 50 70 20 5 0
QPF 12HR 0.03 0.03 0.02 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C L C L C S S S
TSTMS C C
DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 TUE 08/26/25
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 61 85 65 82 64 81 55 76
TEMP 64 65 80 76 68 67 79 73 67 66 78 70 60 59 74 67
DEWPT 58 59 66 63 63 65 70 69 67 66 59 55 53 55 53 50
PWIND DIR SE S S S SW W W W
WIND CHAR LT LT LT LT LT LT LT GN
AVG CLOUDS FW FW SC SC B1 B1 B2 B2 B1 SC FW SC FW CL FW SC
POP 12HR 0 20 40 70 40 20 5 5
RAIN SHWRS S C C C L C S
TSTMS S S S C S S
MDZ017-202000-
PATUXENT RIVER NAS MD
38.29N 76.41W ELEV. 39 FT
137 PM EDT WED AUG 20 2025
DATE WED 08/20/25 THU 08/21/25 FRI 08/22/25
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 80 72 79 66 80
TEMP 80 80 78 76 74 73 75 77 77 76 73 70 69 68 70 75 78 79 74
DEWPT 72 72 75 73 73 72 73 72 72 70 68 65 64 62 63 61 60 59 60
RH 77 77 91 90 97 97 94 85 85 82 84 84 84 81 78 62 54 50 62
WIND DIR SE SE E E NE NE NE N N N N N N N N N N N E
WIND SPD 8 9 5 8 10 13 16 18 19 18 14 13 11 10 10 10 9 6 4
CLOUDS SC SC B2 B1 B2 B2 B2 OV OV OV OV B2 SC SC CL CL CL CL CL
POP 12HR 30 20 30 5 0
QPF 12HR 0 0 0.01 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE
RAIN SHWRS C C S S S S
HEAT INDEX 84 84
MAX HEAT 84 84
DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 TUE 08/26/25
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 67 82 70 84 70 84 65 80
TEMP 69 72 80 75 72 74 82 77 73 73 82 76 69 68 78 73
DEWPT 62 65 64 65 66 68 69 70 69 70 68 67 60 60 56 57
PWIND DIR SE S S S S W NW NW
WIND CHAR LT GN GN GN LT LT LT LT
AVG CLOUDS CL CL CL FW FW FW SC B1 B1 B1 SC B1 FW FW FW FW
POP 12HR 0 0 10 30 40 30 10 0
RAIN SHWRS S C C C S C
TSTMS S
WVZ502-202000-
PETERSBURG WV
38.99N 79.15W ELEV. 963 FT
137 PM EDT WED AUG 20 2025
DATE WED 08/20/25 THU 08/21/25 FRI 08/22/25
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 66 78 61 83
TEMP 82 79 73 70 68 68 67 71 75 77 71 66 64 63 62 72 79 80 72
DEWPT 69 69 72 70 68 67 67 70 70 70 68 66 64 63 62 66 66 66 66
RH 65 72 97100100 97100 97 84 79 90100100100100 81 64 62 81
WIND DIR SE S N N N N N NE NE NE NE NE NE NE NE NE NE E E
WIND SPD 3 3 2 2 2 2 3 4 5 5 4 2 2 2 2 2 2 3 3
CLOUDS OV OV B2 B2 OV OV OV OV B2 B1 B1 OV OV OV B2 B1 SC SC SC
POP 12HR 80 50 50 20 10
QPF 12HR 0.29 0.18 0.03 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS O O C S C C C C C C S S
TSTMS O O
HEAT INDEX 85 82
MAX HEAT 86 85 83
DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 TUE 08/26/25
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 61 87 63 84 59 79 51 74
TEMP 64 63 83 74 65 65 79 72 62 60 76 66 54 54 72 63
DEWPT 63 62 68 68 64 65 69 68 62 60 56 54 51 50 51 51
PWIND DIR S S S SW W W W W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC B1 B1 B1 B2 B2 SC SC SC SC FW FW SC SC
POP 12HR 5 40 40 70 30 20 5 5
RAIN SHWRS C C C C L C S
TSTMS C S C S
MDZ014-202000-
ANNAPOLIS MD
38.99N 76.49W ELEV. 7 FT
137 PM EDT WED AUG 20 2025
DATE WED 08/20/25 THU 08/21/25 FRI 08/22/25
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 71 75 66 79
TEMP 75 76 76 75 75 73 72 72 73 73 73 70 69 68 69 74 76 78 75
DEWPT 71 71 73 74 73 72 70 69 69 67 65 65 64 62 61 58 58 57 58
RH 87 85 90 97 94 97 93 90 87 81 76 84 84 81 76 57 54 48 55
WIND DIR SE SE E E NE NE NE NE NE NE NE N N N N N N NE E
WIND SPD 9 9 6 6 8 10 11 14 16 14 11 10 9 9 8 9 8 5 4
CLOUDS B2 B2 B2 OV OV OV OV OV OV OV OV B1 SC SC FW CL FW FW FW
POP 12HR 30 30 20 5 0
QPF 12HR 0.02 0.17 0 0 0
SNOW 12HR 00-00 00-00 00-00
DRIZZLE
RAIN SHWRS C C S C C S S S
DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 TUE 08/26/25
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 67 80 70 81 69 81 65 77
TEMP 69 70 78 76 72 73 79 77 72 72 79 76 70 67 75 73
DEWPT 63 64 63 63 66 67 68 68 69 69 66 62 60 58 55 54
PWIND DIR S S S S SW W NW NW
WIND CHAR LT GN GN GN LT LT LT GN
AVG CLOUDS CL CL FW FW FW SC B1 B1 B1 B1 SC B1 SC FW FW SC
POP 12HR 0 0 20 40 50 30 10 0
RAIN SHWRS S S C C C S C
TSTMS S S
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