685
FOUS51 KLWX 151831
PFMLWX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
230 PM EDT SAT AUG 15 2026
VAZ054-152000-
REAGAN NATIONAL AIRPORT-ARLINGTON VA
38.86N 77.03W ELEV. 66 FT
230 PM EDT SAT AUG 15 2026
DATE SAT 08/15/26 SUN 08/16/26 MON 08/17/26
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 74 84 74 89
TEMP 86 81 77 76 75 76 79 80 80 77 76 76 75 76 83 87 88 83
DEWPT 67 65 66 68 70 70 70 72 72 72 73 74 74 74 75 75 72 70
RH 53 58 69 76 84 82 74 77 77 85 90 94 97 94 77 68 59 65
WIND DIR SE SE SE S S S S S S S S SW SW W NW NW NW NW
WIND SPD 5 8 6 6 8 9 12 12 12 10 9 9 8 9 12 12 11 9
WIND GUST 24
CLOUDS B2 FW FW SC B1 B2 OV OV B2 B1 B1 OV B2 SC SC SC B1 SC
POP 12HR 10 10 90 70 20
QPF 12HR 0 0 0.74 0.09 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L D C C C S S S
TSTMS S C C C S S S
HEAT INDEX 89 83 84 84 90 96 95 87
MAX HEAT 89 90 82 85 87 96 97
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26 FRI 08/21/26
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 73 87 70 89 73 87 70 84
TEMP 76 73 85 81 73 72 87 83 76 75 85 80 72 71 81 77
DEWPT 69 67 64 62 62 63 65 66 69 69 68 65 63 62 63 62
PWIND DIR NW NW NW SW SW NW N NE
WIND CHAR GN GN LT GN GN GN GN GN
AVG CLOUDS SC FW FW FW FW FW FW FW SC SC SC B1 B1 B1 B1 B1
POP 12HR 5 5 0 0 20 30 30 30
RAIN SHWRS S S C C C C C
TSTMS S S S
MDZ013-152000-
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD
39.19N 76.67W ELEV. 154 FT
230 PM EDT SAT AUG 15 2026
DATE SAT 08/15/26 SUN 08/16/26 MON 08/17/26
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 71 82 71 89
TEMP 86 80 76 74 73 73 79 80 77 73 74 73 72 74 84 88 87 81
DEWPT 68 67 68 69 70 71 72 74 74 73 74 73 72 74 76 77 75 74
RH 55 65 76 84 90 93 79 82 90100100100100100 77 70 68 79
WIND DIR E E SE S SE S S S S S S SW SW W NW NW NW NW
WIND SPD 4 3 2 3 3 4 8 10 11 8 9 6 4 5 9 9 8 4
WIND GUST 21 21 19 25 19
CLOUDS SC FW SC SC B2 B2 B2 OV OV B2 B2 OV B2 SC SC SC SC SC
POP 12HR 5 10 100 70 20
QPF 12HR 0 0 0.94 0.14 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L D C C L C S S
TSTMS S C C C S S S
HEAT INDEX 89 82 84 93100 96 86
MAX HEAT 90 91 84 86 100 100
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26 FRI 08/21/26
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 70 87 68 89 71 86 66 83
TEMP 74 71 86 80 70 71 87 81 74 73 84 78 69 69 81 75
DEWPT 70 69 67 66 64 66 68 69 69 70 70 68 64 63 65 65
PWIND DIR NW NW W SW SW NW N NE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW FW FW SC B1 SC B1 B1 B1 B1 B1
POP 12HR 5 5 0 5 30 30 30 30
RAIN SHWRS S C S C C C C C
TSTMS S S S
MDZ011-152000-
BALTIMORE INNER HARBOR-BALTIMORE CITY MD
39.28N 76.61W ELEV. 20 FT
230 PM EDT SAT AUG 15 2026
DATE SAT 08/15/26 SUN 08/16/26 MON 08/17/26
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 89 74 83 74 90
TEMP 87 82 77 75 74 75 79 80 78 75 74 74 74 76 85 89 88 82
DEWPT 64 62 64 68 69 70 68 71 72 70 72 73 73 74 74 74 74 72
RH 46 51 64 79 84 84 69 74 82 84 93 97 97 94 70 61 63 72
WIND DIR E E SE SE SE SE S S S S S SW SW W NW NW NW NW
WIND SPD 4 2 2 2 2 3 8 10 10 8 6 4 3 4 8 9 8 4
WIND GUST 18 23 21 21 17
CLOUDS B1 SC SC SC B2 B2 OV OV OV B2 B2 B2 B2 SC SC SC B1 SC
POP 12HR 0 10 100 70 20
QPF 12HR 0 0 0.94 0.19 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L D C C L C S S
TSTMS C C C S S S
HEAT INDEX 88 83 83 93 98 97 87
MAX HEAT 89 89 81 83 85 98 98
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26 FRI 08/21/26
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 72 88 70 89 73 87 68 84
TEMP 74 73 87 81 72 72 87 82 75 74 84 79 70 69 81 77
DEWPT 68 66 63 62 62 62 64 66 68 68 67 64 62 60 61 60
PWIND DIR NW NW NW SW SW NW N NE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW FW FW FW FW SC B1 SC B1 B1 B1 B1 B1
POP 12HR 5 0 0 5 30 30 30 30
RAIN SHWRS S C S C C C C C
TSTMS S S S
WVZ052-152000-
MARTINSBURG AIRPORT-BERKELEY WV
39.41N 77.98W ELEV. 558 FT
230 PM EDT SAT AUG 15 2026
DATE SAT 08/15/26 SUN 08/16/26 MON 08/17/26
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 69 81 70 86
TEMP 85 79 75 73 71 71 75 79 79 77 73 72 71 73 83 86 84 79
DEWPT 66 65 66 67 68 70 72 74 74 74 72 72 71 72 73 72 71 70
RH 53 62 74 81 90 97 90 85 85 90 97100100 97 72 63 65 74
WIND DIR N N SE SE SE S S S SW S S SW W W NW NW NW NW
WIND SPD 0 0 2 3 5 8 10 10 6 5 4 5 5 5 9 10 9 5
CLOUDS SC SC B1 B2 OV OV OV OV B2 B1 B2 B2 B2 FW SC SC SC SC
POP 12HR 0 50 90 80 20
QPF 12HR 0 0.05 0.82 0.17 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S D D D L C D C S S
TSTMS S C C C C S S S
HEAT INDEX 87 89 92 89
MAX HEAT 87 87 84 92 92
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26 FRI 08/21/26
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 65 84 61 86 66 82 61 80
TEMP 69 68 84 78 65 67 85 80 70 69 82 76 64 64 78 74
DEWPT 67 65 61 61 61 62 65 66 66 66 65 63 60 59 61 60
PWIND DIR NW NW W SW W NW N NE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW FW SC B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 5 0 0 5 30 30 30 30
RAIN SHWRS C C C C C C C C
TSTMS S S
VAZ506-152000-
WASHINGTON DULLES AIRPORT-LOUDOUN VA
38.96N 77.45W ELEV. 321 FT
230 PM EDT SAT AUG 15 2026
DATE SAT 08/15/26 SUN 08/16/26 MON 08/17/26
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 87 70 83 71 88
TEMP 85 80 75 74 72 72 77 80 79 76 74 73 72 74 84 88 86 80
DEWPT 71 70 69 70 70 71 74 76 76 75 74 73 72 74 76 77 75 74
RH 63 72 82 87 93 97 90 88 91 97100100100100 77 70 70 82
WIND DIR SE SE SE S S S S S S S S SW SW W NW NW NW NW
WIND SPD 3 3 3 3 4 6 10 11 9 6 4 4 3 5 10 9 8 4
WIND GUST 21 21 17
CLOUDS B1 SC SC B1 B1 B2 OV OV B2 B1 B2 OV B2 SC SC SC SC SC
POP 12HR 10 20 90 70 20
QPF 12HR 0 0.01 0.98 0.06 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L D D C C C S S S
TSTMS S S C C C S S S
HEAT INDEX 90 83 86 93100 95 84
MAX HEAT 91 94 86 89 100 100
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26 FRI 08/21/26
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 68 85 65 88 69 85 65 82
TEMP 72 70 83 79 68 69 86 81 73 71 83 78 67 67 80 75
DEWPT 70 68 69 67 64 65 70 70 69 70 72 68 64 63 67 66
PWIND DIR NW NW NW SW W NW N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW FW FW FW FW SC B1 SC B1 B1 B1 B1 B1
POP 12HR 5 5 0 5 30 30 30 30
RAIN SHWRS S C C C C C C
TSTMS S S S
VAZ037-152000-
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA
38.14N 78.45W ELEV. 640 FT
230 PM EDT SAT AUG 15 2026
DATE SAT 08/15/26 SUN 08/16/26 MON 08/17/26
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 85 70 86 72 90
TEMP 83 78 75 73 72 72 79 84 84 79 75 74 73 74 86 90 88 80
DEWPT 71 70 71 71 71 72 73 76 76 75 74 73 72 73 73 72 72 72
RH 67 76 87 93 97100 82 77 77 88 97 97 97 97 65 56 59 77
WIND DIR E N N N S S S S S S SW SW SW SW W W NW NW
WIND SPD 3 0 0 0 2 5 8 8 6 4 5 5 4 4 5 6 5 3
CLOUDS B1 SC SC B1 B2 B2 B1 B2 B2 B1 B1 B2 B1 SC SC SC SC SC
POP 12HR 20 20 80 60 20
QPF 12HR 0 0 0.27 0.03 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S L C L L C C S S
TSTMS S S C C C C S S S
HEAT INDEX 88 93 93 93 97 95 84
MAX HEAT 88 89 93 96 97 97
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26 FRI 08/21/26
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 69 87 66 89 69 86 65 82
TEMP 72 71 87 79 69 69 87 82 73 71 85 77 69 66 81 75
DEWPT 70 69 66 66 64 63 65 67 68 68 67 68 65 63 62 63
PWIND DIR NW NE NE S W N N NE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC FW SC SC SC FW FW FW SC SC B1 B1 B1 SC B1
POP 12HR 10 10 5 5 20 50 40 40
RAIN SHWRS S C C C S C
TSTMS C S S
MDZ003-152000-
HAGERSTOWN AIRPORT-WASHINGTON MD
39.71N 77.73W ELEV. 705 FT
230 PM EDT SAT AUG 15 2026
DATE SAT 08/15/26 SUN 08/16/26 MON 08/17/26
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 87 69 81 70 87
TEMP 85 79 75 73 71 71 74 77 76 76 73 72 71 73 82 86 84 78
DEWPT 67 66 66 66 67 70 72 75 74 73 73 72 71 73 74 74 73 71
RH 55 64 74 79 87 97 93 94 94 90100100100100 77 68 70 79
WIND DIR NE E SE SE SE S S S S S S SW SW W NW NW NW NW
WIND SPD 3 3 3 4 5 8 12 11 8 6 5 4 4 4 8 9 9 4
WIND GUST 21
CLOUDS B1 SC SC B2 B2 OV OV OV OV B2 B2 OV B1 SC SC B1 B1 SC
POP 12HR 0 40 100 80 30
QPF 12HR 0 0.06 1.26 0.17 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S D D D C L D C C C
TSTMS S S C C C S C S
HEAT INDEX 88 88 94 90
MAX HEAT 88 89 94 94
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26 FRI 08/21/26
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 64 84 62 86 66 82 61 80
TEMP 69 67 83 78 65 67 84 80 71 69 81 76 64 64 78 74
DEWPT 67 66 64 63 62 63 67 67 66 67 67 64 60 60 62 61
PWIND DIR NW NW NW SW W NW N NE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW FW FW B1 B1 B1 B1 SC SC B1 B1
POP 12HR 0 0 0 5 30 30 30 30
RAIN SHWRS C C C C S C C S
TSTMS S S
MDZ017-152000-
PATUXENT RIVER NAS MD
38.29N 76.41W ELEV. 39 FT
230 PM EDT SAT AUG 15 2026
DATE SAT 08/15/26 SUN 08/16/26 MON 08/17/26
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 87 74 85 74 91
TEMP 85 80 77 76 75 77 82 83 81 77 76 76 75 78 86 91 89 82
DEWPT 70 69 70 70 71 72 71 72 73 74 75 75 75 77 76 76 75 75
RH 61 69 79 82 87 85 69 70 77 90 97 97100 97 72 62 64 79
WIND DIR E SE SE SE S S S S S S S SW SW W W NW W NW
WIND SPD 4 4 5 4 4 5 10 14 14 12 10 10 9 8 9 8 6 3
WIND GUST 26 21 19
CLOUDS FW FW CL SC B1 B1 B2 OV B2 B2 B1 B2 B1 SC SC SC SC SC
POP 12HR 10 5 80 70 30
QPF 12HR 0 0 0.53 0.13 0.02
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S D L L C C C C S
TSTMS C C C S S
HEAT INDEX 90 83 86 88 86 96103 99 89
MAX HEAT 90 92 88 90 103 103
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26 FRI 08/21/26
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 74 87 71 87 74 86 71 82
TEMP 76 76 85 80 74 75 86 81 77 76 84 80 74 73 80 77
DEWPT 73 71 69 67 66 67 68 70 72 73 71 70 68 67 67 66
PWIND DIR NW N NW SW SW NW N NE
WIND CHAR LT LT LT LT GN LT LT GN
AVG CLOUDS SC FW FW FW FW FW FW FW SC SC SC B1 B1 B1 B1 B1
POP 12HR 20 5 0 5 20 40 50 40
RAIN SHWRS S S S S C C S C C
TSTMS S S S
WVZ502-152000-
PETERSBURG WV
38.99N 79.15W ELEV. 963 FT
230 PM EDT SAT AUG 15 2026
DATE SAT 08/15/26 SUN 08/16/26 MON 08/17/26
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 68 87 70 87
TEMP 82 77 73 71 70 70 79 85 85 79 75 72 71 71 82 87 85 77
DEWPT 73 72 70 69 68 69 75 76 74 73 71 70 69 70 73 72 71 71
RH 74 85 90 93 93 97 88 75 70 82 87 93 93 97 74 61 63 82
WIND DIR E SE SE S S E SW SW SW S SW SW SW SW W W NW NW
WIND SPD 1 1 1 2 3 4 4 5 5 4 4 3 3 3 3 5 5 2
CLOUDS B1 SC B1 B1 B2 OV B2 B2 B1 B1 B2 B2 SC FW SC SC SC SC
POP 12HR 40 60 90 70 20
QPF 12HR 0.03 0.06 0.48 0.13 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C D L L C C L C S S
TSTMS C S S C C C C S S S
HEAT INDEX 87 94 93 87 94 90
MAX HEAT 88 87 94 94 94 94
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26 FRI 08/21/26
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 64 85 59 89 64 84 59 81
TEMP 69 65 85 75 62 63 87 79 69 66 81 74 63 61 78 73
DEWPT 68 65 64 63 61 61 65 67 65 65 68 65 61 60 63 62
PWIND DIR NW NW W SW W NW NW N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC FW FW FW FW FW FW SC SC B1 B1 B1 B1 SC B1
POP 12HR 10 5 0 5 30 40 30 40
RAIN SHWRS S C S C C C C C
TSTMS S S S
MDZ014-152000-
ANNAPOLIS MD
38.99N 76.49W ELEV. 7 FT
230 PM EDT SAT AUG 15 2026
DATE SAT 08/15/26 SUN 08/16/26 MON 08/17/26
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 87 74 82 74 90
TEMP 87 83 78 76 75 76 82 82 80 77 75 75 74 76 87 90 89 84
DEWPT 66 65 69 70 71 71 71 72 72 72 73 74 74 74 75 75 74 74
RH 50 55 74 82 87 85 69 72 77 85 94 97100 94 68 62 61 72
WIND DIR E N SE S S S S S S S S SW SW W W NW NW NW
WIND SPD 5 0 4 4 4 6 11 13 13 11 9 6 6 6 10 10 9 4
WIND GUST 24 25 21 20 18 17
CLOUDS FW FW SC SC B1 B2 B2 OV B2 B2 B2 OV B2 SC SC SC SC SC
POP 12HR 5 5 90 70 20
QPF 12HR 0 0 0.77 0.16 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C D L L L C S S
TSTMS C C C S S S
HEAT INDEX 89 85 86 87 84 96101 98 91
MAX HEAT 91 91 83 87 87 101 101
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26 FRI 08/21/26
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 74 87 70 89 73 87 69 83
TEMP 76 75 87 82 73 73 88 82 76 75 86 81 72 72 81 77
DEWPT 71 68 66 66 65 66 68 70 70 71 71 68 65 64 65 64
PWIND DIR NW N W SW SW NW N NE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW FW FW FW FW SC SC SC B1 B1 B1 B1 B1
POP 12HR 5 0 0 0 20 30 30 30
RAIN SHWRS S S S C C C C C
TSTMS S S S
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