599
FOUS51 KLWX 130300
PFMLWX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1100 PM EDT SAT SEP 12 2026
VAZ054-130800-
REAGAN NATIONAL AIRPORT-ARLINGTON VA
38.86N 77.03W ELEV. 66 FT
1100 PM EDT SAT SEP 12 2026
DATE 09/12/26 SUN 09/13/26 MON 09/14/26 TUE
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 72 87 71 81 59
TEMP 76 73 73 73 79 85 85 80 76 74 73 72 75 79 79 71 65 61 59 60
DEWPT 72 72 72 72 73 71 70 71 71 69 67 64 60 56 52 51 50 50 49 50
RH 87 97 97 97 82 63 61 74 85 84 81 76 60 45 39 49 58 67 69 69
WIND DIR SE S SW W W NW NW W W W NW N N N N N NE NE N NE
WIND SPD 4 1 1 2 5 5 4 2 2 3 6 9 14 14 14 10 9 9 8 8
CLOUDS OV OV OV B2 B2 B1 SC SC SC SC SC B1 SC FW FW FW FW FW FW FW
POP 12HR 80 30 5 5 0
QPF 12HR 0.17 0.01 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L L L C
TSTMS S S S
HEAT INDEX 90 90 83
MAX HEAT 90 91 80
DATE 09/15 WED 09/16/26 THU 09/17/26 FRI 09/18/26 SAT 09/19/26
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 81 62 82 65 85 68 86 68 83
TEMP 79 72 64 64 80 75 67 66 83 77 70 70 84 79 70 69 80 76
DEWPT 53 56 59 60 62 61 62 62 63 64 64 64 67 66 65 63 63 63
PWIND DIR E SE S S S SW W NE SE
WIND CHAR LT LT LT LT GN GN GN GN GN
AVG CLOUDS FW FW FW FW FW FW FW FW FW CL FW FW FW B1 B1 B1 SC SC
POP 12HR 0 0 0 5 10 10 30 30 20
RAIN SHWRS C C S
MDZ013-130800-
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD
39.19N 76.67W ELEV. 154 FT
1100 PM EDT SAT SEP 12 2026
DATE 09/12/26 SUN 09/13/26 MON 09/14/26 TUE
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 70 86 68 79 57
TEMP 74 72 72 71 78 84 84 79 74 72 70 69 74 77 77 68 63 59 57 59
DEWPT 71 72 72 71 73 72 71 72 71 70 67 64 60 55 53 53 52 50 49 51
RH 90100100100 85 67 65 79 90 93 90 84 62 47 43 59 67 72 75 75
WIND DIR SE SE W W W NW NW W W W NW N N N N N N NE NE NE
WIND SPD 4 2 2 2 5 5 4 2 2 3 6 9 11 11 11 6 4 4 4 4
CLOUDS OV OV OV B2 B2 B1 SC SC SC SC SC B1 SC FW FW CL CL FW FW FW
POP 12HR 90 30 5 5 0
QPF 12HR 0.34 0.01 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L D C
TSTMS C C C
OBVIS PF
HEAT INDEX 90 89
MAX HEAT 90 92
DATE 09/15 WED 09/16/26 THU 09/17/26 FRI 09/18/26 SAT 09/19/26
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 79 60 81 63 84 66 85 65 81
TEMP 76 70 63 63 79 74 65 65 83 77 68 67 82 77 67 66 79 75
DEWPT 54 59 61 62 65 64 63 64 67 67 65 66 69 68 65 64 65 65
PWIND DIR E S S S S SW NW N E
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW SC B1 B1 B1 SC SC
POP 12HR 0 0 0 0 10 10 30 30 30
RAIN SHWRS C C C
MDZ011-130800-
BALTIMORE INNER HARBOR-BALTIMORE CITY MD
39.28N 76.61W ELEV. 20 FT
1100 PM EDT SAT SEP 12 2026
DATE 09/12/26 SUN 09/13/26 MON 09/14/26 TUE
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 72 87 70 80 59
TEMP 76 73 73 73 79 85 85 80 76 74 72 70 75 78 77 69 64 61 59 60
DEWPT 70 73 72 72 71 71 70 70 70 69 66 62 58 53 51 50 50 50 48 49
RH 82100 97 97 77 63 61 72 82 84 81 76 55 42 40 51 60 67 67 67
WIND DIR SE SE W W W NW NW W W W NW N N N N N N N N NE
WIND SPD 5 2 1 1 4 5 4 2 2 3 8 10 11 12 11 6 4 4 3 3
CLOUDS OV OV OV B2 B2 B1 SC SC SC SC SC B1 SC FW FW CL FW FW FW FW
POP 12HR 90 30 5 5 0
QPF 12HR 0.41 0.01 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L D C
TSTMS C C C
OBVIS PF
HEAT INDEX 90 90 83
MAX HEAT 90 92
DATE 09/15 WED 09/16/26 THU 09/17/26 FRI 09/18/26 SAT 09/19/26
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 79 63 82 66 85 69 86 67 83
TEMP 77 71 64 65 79 75 66 67 84 78 70 70 84 78 69 68 80 75
DEWPT 51 53 59 59 60 59 61 61 63 63 64 63 65 64 63 61 60 61
PWIND DIR SE SE S S S SW NW N E
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW SC SC B1 B1 B1 B1 SC
POP 12HR 0 0 0 0 10 10 40 30 20
RAIN SHWRS C C S
WVZ052-130800-
MARTINSBURG AIRPORT-BERKELEY WV
39.41N 77.98W ELEV. 558 FT
1100 PM EDT SAT SEP 12 2026
DATE 09/12/26 SUN 09/13/26 MON 09/14/26 TUE
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 85 65 78 50
TEMP 72 70 69 69 78 84 85 79 71 70 67 66 72 77 76 65 57 53 51 53
DEWPT 71 70 69 69 71 70 69 68 67 66 64 61 57 52 50 51 50 49 48 49
RH 97100100100 79 63 59 69 87 87 90 84 59 42 40 60 77 86 89 86
WIND DIR SE N N N NW NW NW W W W NW NW N N N N N N N N
WIND SPD 3 0 0 0 5 6 5 3 3 4 9 9 11 11 10 5 0 0 0 0
CLOUDS OV OV OV B2 B1 B1 SC SC SC B1 SC SC SC FW FW CL FW FW FW FW
POP 12HR 90 5 20 0 0
QPF 12HR 0.22 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C D L S
TSTMS C C S
OBVIS PF PF PF
HEAT INDEX 88 89
MAX HEAT 88 89
DATE 09/15 WED 09/16/26 THU 09/17/26 FRI 09/18/26 SAT 09/19/26
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 78 55 82 60 85 63 83 60 80
TEMP 76 70 59 58 80 73 63 62 83 76 66 66 81 75 64 63 78 72
DEWPT 52 54 55 56 62 63 61 61 65 65 64 64 67 65 62 61 61 61
PWIND DIR SE SE SE S S SW NW N W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW SC SC SC B1 B1 SC SC B1
POP 12HR 0 0 0 0 20 20 30 20 30
RAIN SHWRS S S S C S C
TSTMS S
VAZ506-130800-
WASHINGTON DULLES AIRPORT-LOUDOUN VA
38.96N 77.45W ELEV. 321 FT
1100 PM EDT SAT SEP 12 2026
DATE 09/12/26 SUN 09/13/26 MON 09/14/26 TUE
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 68 87 68 80 53
TEMP 74 72 70 71 79 85 85 77 73 71 70 68 74 78 77 67 61 56 54 55
DEWPT 72 72 70 71 73 73 72 72 70 68 67 64 61 57 54 54 52 50 49 50
RH 93100100100 82 67 65 85 90 90 90 87 64 48 45 63 72 80 83 83
WIND DIR SE S W SW NW NW NW W W W NW N N N N N N N N N
WIND SPD 4 2 1 2 5 6 4 2 3 3 9 10 12 12 11 5 3 3 3 3
CLOUDS OV OV OV B2 B1 B1 SC SC SC SC SC B1 SC FW FW CL FW FW FW FW
POP 12HR 90 20 5 5 0
QPF 12HR 0.29 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L L D S
TSTMS C S S
OBVIS PF PF
HEAT INDEX 92 91
MAX HEAT 92 92
DATE 09/15 WED 09/16/26 THU 09/17/26 FRI 09/18/26 SAT 09/19/26
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 81 57 82 61 86 64 86 63 82
TEMP 79 70 60 60 81 74 63 64 84 77 68 66 83 77 67 65 79 74
DEWPT 54 60 60 60 66 66 63 63 68 67 65 65 71 69 65 63 67 66
PWIND DIR SE S S S S S NW NE W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW SC FW B1 B1 B1 B1 B1
POP 12HR 0 0 0 5 10 10 30 30 30
RAIN SHWRS C C C
VAZ037-130800-
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA
38.14N 78.45W ELEV. 640 FT
1100 PM EDT SAT SEP 12 2026
DATE 09/12/26 SUN 09/13/26 MON 09/14/26 TUE
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 68 86 66 81 54
TEMP 73 71 70 69 79 85 84 76 72 69 68 68 75 79 80 68 61 58 56 55
DEWPT 72 71 70 69 73 71 71 71 70 68 66 66 64 60 56 55 51 51 49 50
RH 97100100100 82 63 65 85 93 97 93 93 69 52 44 63 70 77 77 83
WIND DIR N N N N N NW NW N N W NW N N N N NE N N N N
WIND SPD 0 0 0 0 0 2 2 0 0 1 3 5 8 8 8 6 4 3 4 4
CLOUDS OV OV B2 B2 SC SC B1 SC SC SC SC SC SC SC FW FW FW FW FW FW
POP 12HR 90 20 5 10 0
QPF 12HR 0.05 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L L L S S
TSTMS C S S S
OBVIS PF PF PF PF
HEAT INDEX 90 89 80
MAX HEAT 90 91 81
DATE 09/15 WED 09/16/26 THU 09/17/26 FRI 09/18/26 SAT 09/19/26
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 78 56 83 60 86 63 85 63 81
TEMP 76 69 59 58 82 74 64 62 85 76 67 65 84 76 68 64 79 73
DEWPT 53 58 57 57 62 64 62 61 64 66 64 63 66 68 66 64 64 65
PWIND DIR E N SE N S W S N SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW CL FW FW FW CL CL FW FW FW B1 SC SC SC B1
POP 12HR 0 0 5 0 10 5 40 20 30
RAIN SHWRS C S C
MDZ003-130800-
HAGERSTOWN AIRPORT-WASHINGTON MD
39.71N 77.73W ELEV. 705 FT
1100 PM EDT SAT SEP 12 2026
DATE 09/12/26 SUN 09/13/26 MON 09/14/26 TUE
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 67 85 64 77 50
TEMP 72 71 69 68 77 82 85 79 71 70 67 65 70 75 75 64 57 53 51 53
DEWPT 70 70 69 68 71 70 70 69 67 66 63 60 57 53 51 51 50 48 47 48
RH 93 97100100 82 67 61 72 87 87 87 84 63 46 43 63 77 83 86 83
WIND DIR SE S SW W NW NW NW W W W NW NW N N N N NE NE N NE
WIND SPD 4 3 2 2 4 5 5 3 3 4 9 9 11 11 10 4 3 3 3 2
CLOUDS OV OV OV B2 B1 B1 SC SC SC B2 SC SC SC FW FW CL FW FW FW FW
POP 12HR 90 10 20 0 0
QPF 12HR 0.26 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C D C S
TSTMS C C S
OBVIS PF PF PF
HEAT INDEX 86 90
MAX HEAT 86 90
DATE 09/15 WED 09/16/26 THU 09/17/26 FRI 09/18/26 SAT 09/19/26
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 79 56 82 61 85 64 83 60 79
TEMP 76 69 59 59 79 75 64 64 83 77 68 66 80 74 65 61 77 72
DEWPT 52 56 55 58 65 65 61 62 68 66 64 64 69 66 62 61 63 62
PWIND DIR SE SE S SE S S NW NE NW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW SC SC SC B1 B1 B1 B1 B1
POP 12HR 0 0 0 0 10 20 40 20 30
RAIN SHWRS S S C S C
MDZ017-130800-
PATUXENT RIVER NAS MD
38.29N 76.41W ELEV. 39 FT
1100 PM EDT SAT SEP 12 2026
DATE 09/12/26 SUN 09/13/26 MON 09/14/26 TUE
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 71 85 72 80 63
TEMP 74 73 73 73 79 83 85 79 75 74 73 74 77 78 78 72 69 65 63 65
DEWPT 73 73 73 73 74 74 74 73 73 72 71 69 65 61 59 57 55 55 55 57
RH 97100100100 85 74 70 82 94 93 93 84 67 56 52 59 61 70 75 75
WIND DIR SE S SW SW W NW W S SW W NW N N N N N N NE NE NE
WIND SPD 8 6 6 8 8 5 4 3 4 5 6 12 16 14 13 10 9 10 9 8
CLOUDS B2 OV OV B2 B2 SC SC SC SC SC SC SC B1 SC FW FW CL FW CL CL
POP 12HR 80 40 5 10 0
QPF 12HR 0.12 0.01 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L L C S
TSTMS C C S
HEAT INDEX 90 93
MAX HEAT 90 93
DATE 09/15 WED 09/16/26 THU 09/17/26 FRI 09/18/26 SAT 09/19/26
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 79 64 78 66 81 68 84 68 81
TEMP 77 73 67 68 77 73 69 69 80 76 72 71 82 77 72 70 79 75
DEWPT 56 60 63 63 61 63 66 65 64 66 68 67 68 69 68 67 66 66
PWIND DIR E SE SE S S S S NE E
WIND CHAR LT LT LT LT LT LT LT LT GN
AVG CLOUDS FW FW FW FW FW CL FW FW FW CL FW SC FW SC SC SC SC SC
POP 12HR 0 0 0 0 5 10 20 30 20
RAIN SHWRS S C S S
WVZ502-130800-
PETERSBURG WV
38.99N 79.15W ELEV. 963 FT
1100 PM EDT SAT SEP 12 2026
DATE 09/12/26 SUN 09/13/26 MON 09/14/26 TUE
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 87 63 80 50
TEMP 72 69 67 67 77 85 86 77 69 68 65 63 70 78 78 64 58 54 52 51
DEWPT 71 68 67 67 71 69 68 68 67 66 64 62 59 55 53 54 51 49 48 49
RH 97 97100100 82 59 55 74 93 93 97 97 68 45 42 70 77 83 86 93
WIND DIR SW N N SE NW NW NW W SW SW N N N NW N N N N N N
WIND SPD 1 0 0 1 1 3 4 3 2 1 2 3 5 6 6 3 1 0 0 0
CLOUDS OV OV B2 B1 B1 B1 SC SC B1 B1 B1 B1 B1 FW CL FW FW SC FW FW
POP 12HR 90 10 20 5 0
QPF 12HR 0.10 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D D S
TSTMS C S
OBVIS PF PF PF
HEAT INDEX 89 89
MAX HEAT 89 89
DATE 09/15 WED 09/16/26 THU 09/17/26 FRI 09/18/26 SAT 09/19/26
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 83 56 88 61 90 63 86 60 82
TEMP 79 72 59 58 85 76 65 63 87 79 68 64 83 75 65 61 79 72
DEWPT 57 60 56 56 66 67 62 61 68 69 64 63 70 68 64 61 65 64
PWIND DIR SE S SE S SW SW NW W W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW SC FW FW SC SC SC B1 B1 B1 B1 SC B1
POP 12HR 0 0 5 5 20 20 50 30 40
RAIN SHWRS S S C C C S S C
TSTMS S
MDZ014-130800-
ANNAPOLIS MD
38.99N 76.49W ELEV. 7 FT
1100 PM EDT SAT SEP 12 2026
DATE 09/12/26 SUN 09/13/26 MON 09/14/26 TUE
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 72 86 70 78 62
TEMP 76 73 72 73 80 85 86 81 75 74 72 71 76 78 78 72 67 64 62 64
DEWPT 72 73 72 73 73 72 72 73 73 71 68 65 61 56 54 53 54 54 52 53
RH 87100100100 79 65 63 77 94 90 87 81 60 47 43 51 63 70 70 67
WIND DIR SE SE SW W W NW NW SW W W NW N N N N N N NE NE NE
WIND SPD 6 4 4 4 6 5 5 4 3 4 8 11 13 13 13 10 9 9 8 8
CLOUDS OV OV OV B2 B2 B1 SC SC SC SC SC B1 SC FW FW FW FW FW FW FW
POP 12HR 80 30 5 5 0
QPF 12HR 0.27 0.07 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L D C
TSTMS C C C
HEAT INDEX 84 91 92 86
MAX HEAT 91 92
DATE 09/15 WED 09/16/26 THU 09/17/26 FRI 09/18/26 SAT 09/19/26
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 77 62 80 64 83 66 85 66 82
TEMP 76 73 65 65 79 74 67 67 82 77 70 69 83 78 68 68 79 75
DEWPT 53 59 61 61 64 63 64 64 67 67 66 66 70 69 66 65 66 65
PWIND DIR E S S S S SW N NE E
WIND CHAR LT LT LT LT LT LT LT LT GN
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW SC B1 B1 B1 SC B1
POP 12HR 0 0 0 0 5 10 30 30 20
RAIN SHWRS C C S
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