739
FOUS51 KLWX 201501
PFMLWX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1101 AM EDT WED MAY 20 2026
VAZ054-202000-
REAGAN NATIONAL AIRPORT-ARLINGTON VA
38.86N 77.03W ELEV. 66 FT
1101 AM EDT WED MAY 20 2026
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26
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 96 61 68 55 63
TEMP 92 90 80 74 70 66 63 63 66 64 63 60 58 57 57 58 60 60 58
DEWPT 62 62 70 69 65 59 56 54 55 56 55 56 55 54 54 54 54 52 51
RH 37 39 72 84 84 78 78 72 68 75 75 87 90 90 90 86 81 75 77
WIND DIR SW W N N N N NE NE NE NE NE NE NE NE NE E E E E
WIND SPD 8 9 12 8 10 10 12 12 12 11 10 9 9 10 11 13 13 14 13
CLOUDS SC B2 OV B2 OV OV OV OV OV OV OV B2 B2 B2 OV OV B2 B2 OV
POP 12HR 60 60 80 70 80
QPF 12HR 0.14 0.23 0.12 0.07 0.27
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L L L C C L C L C C C L L D D D D D
TSTMS C C S S S S S S
HEAT INDEX 93 90 83
MAX HEAT 93 94
DATE SAT 05/23/26 SUN 05/24/26 MON 05/25/26 TUE 05/26/26
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 53 66 57 70 62 79 65 81
TEMP 55 56 62 63 60 60 67 68 64 64 76 75 68 67 78 77
DEWPT 53 55 59 60 60 60 65 65 63 64 67 68 66 65 65 66
PWIND DIR E E NE NE E S E NW
WIND CHAR GN GN GN GN GN LT LT LT
AVG CLOUDS OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B2
POP 12HR 80 80 60 30 50 50 50 40
RAIN SHWRS D D D L L C C C C C S C C S S C
TSTMS S S S S C S S
MDZ013-202000-
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD
39.19N 76.67W ELEV. 154 FT
1101 AM EDT WED MAY 20 2026
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26
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 95 58 67 53 64
TEMP 93 89 78 72 69 63 59 63 65 64 61 59 57 56 56 60 62 61 57
DEWPT 63 65 72 69 63 56 52 54 55 56 57 57 55 54 54 53 53 52 52
RH 37 45 82 90 81 78 78 72 70 75 87 93 93 93 93 78 72 72 83
WIND DIR W W N NW N N NE N NE NE NE NE NE NE E E E E E
WIND SPD 8 6 5 3 4 6 9 9 9 8 4 3 3 5 8 10 11 11 9
CLOUDS SC B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 OV B2 OV OV OV
POP 12HR 60 60 80 50 80
QPF 12HR 0.20 0.18 0.18 0.03 0.33
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S L C C C C L L L C C C C C D D D D D
TSTMS S C C S S S S S
HEAT INDEX 94 91
MAX HEAT 94 95
DATE SAT 05/23/26 SUN 05/24/26 MON 05/25/26 TUE 05/26/26
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 50 64 54 70 59 79 62 82
TEMP 53 55 62 60 59 59 67 67 63 63 76 74 67 66 80 76
DEWPT 52 54 57 58 58 59 63 63 62 63 66 68 64 64 65 67
PWIND DIR E E NE NE E SW NE NW
WIND CHAR GN GN LT LT LT LT LT LT
AVG CLOUDS OV OV OV OV B2 OV OV B2 B2 OV B2 B2 B1 B2 B2 B2
POP 12HR 80 90 60 40 50 40 30 30
RAIN SHWRS D D D D L C C S C C S C C S S C
TSTMS S S S S S
MDZ011-202000-
BALTIMORE INNER HARBOR-BALTIMORE CITY MD
39.28N 76.61W ELEV. 20 FT
1101 AM EDT WED MAY 20 2026
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26
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 95 60 67 56 64
TEMP 93 89 78 72 69 64 61 63 65 64 63 60 58 57 58 61 62 61 58
DEWPT 63 64 71 69 61 55 49 51 52 53 54 55 53 53 51 50 49 49 48
RH 37 44 79 90 76 73 65 65 63 67 72 84 83 86 77 67 62 65 69
WIND DIR W W NW N N N NE N N NE NE NE NE NE E E E E E
WIND SPD 9 6 4 3 4 6 8 8 8 6 3 2 2 4 6 9 11 11 9
CLOUDS SC B2 OV OV OV OV OV OV OV OV B2 B2 B2 OV OV OV OV OV OV
POP 12HR 70 60 80 50 80
QPF 12HR 0.25 0.22 0.20 0.03 0.33
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S L C C C C C L L C C C C C D D D D D
TSTMS S L C S S S S
HEAT INDEX 94 90
MAX HEAT 94 94
DATE SAT 05/23/26 SUN 05/24/26 MON 05/25/26 TUE 05/26/26
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 53 64 57 70 61 79 64 82
TEMP 55 56 62 60 59 59 67 67 64 63 76 75 68 66 80 78
DEWPT 50 51 53 56 57 58 61 62 61 61 63 67 63 63 62 66
PWIND DIR E E NE NE E SW NE NW
WIND CHAR LT GN LT LT LT LT LT LT
AVG CLOUDS OV OV OV OV OV OV OV B2 B2 OV OV B2 B2 B2 B2 B2
POP 12HR 80 90 70 40 40 40 30 30
RAIN SHWRS D D D D L C C S C C C C C S S C
TSTMS S S S S
WVZ052-202000-
MARTINSBURG AIRPORT-BERKELEY WV
39.41N 77.98W ELEV. 558 FT
1101 AM EDT WED MAY 20 2026
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26
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 92 55 64 51 60
TEMP 88 84 76 69 65 60 59 60 62 61 61 58 57 54 55 57 58 58 57
DEWPT 63 64 65 62 56 51 49 51 50 50 51 52 52 51 51 51 51 51 50
RH 43 51 69 78 73 72 69 72 65 67 70 80 83 90 86 80 77 77 77
WIND DIR W NW NW N N N N NE N NE N N N E E E E E E
WIND SPD 9 8 8 8 6 9 10 9 8 5 0 0 0 4 6 9 9 9 8
CLOUDS B1 OV B2 B2 OV OV OV OV OV OV B2 B2 B2 OV OV OV OV OV OV
POP 12HR 70 70 80 60 90
QPF 12HR 0.16 0.13 0.32 0.06 0.42
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L C C C L D L C C C C L L D D D D D
TSTMS C L C S S S S
HEAT INDEX 89 85
MAX HEAT 89 90
DATE SAT 05/23/26 SUN 05/24/26 MON 05/25/26 TUE 05/26/26
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 48 62 53 70 59 79 61 81
TEMP 53 53 60 60 58 57 67 67 64 62 76 74 66 65 79 76
DEWPT 50 50 54 55 56 55 60 61 61 60 63 66 63 61 63 65
PWIND DIR E E E E SE W NE NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 B2
POP 12HR 90 90 60 30 50 60 30 40
RAIN SHWRS D D D L L C C C C C C L C S C C
TSTMS S S S C S
VAZ506-202000-
WASHINGTON DULLES AIRPORT-LOUDOUN VA
38.96N 77.45W ELEV. 321 FT
1101 AM EDT WED MAY 20 2026
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26
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 95 58 66 53 62
TEMP 92 88 78 73 68 65 61 62 64 62 61 59 58 56 56 58 60 60 58
DEWPT 64 65 69 67 63 58 54 56 56 57 56 56 56 55 55 55 55 55 53
RH 40 47 74 81 84 78 78 81 75 84 84 90 93 96 96 90 84 84 83
WIND DIR W NW N N N N N N NE NE N NE NE NE NE E E E E
WIND SPD 5 8 6 4 5 8 9 9 9 6 4 2 2 4 5 8 9 9 8
CLOUDS SC B2 OV B2 OV OV OV OV OV OV B2 B2 B2 OV OV OV OV OV OV
POP 12HR 70 70 80 70 90
QPF 12HR 0.26 0.26 0.18 0.10 0.30
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S L L C C C D L L C C C L L D D D D D
TSTMS S L C S S S S S S S
HEAT INDEX 94 90
MAX HEAT 94 94
DATE SAT 05/23/26 SUN 05/24/26 MON 05/25/26 TUE 05/26/26
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 50 65 55 71 60 80 63 81
TEMP 53 55 62 62 60 59 69 69 65 63 77 76 68 66 79 77
DEWPT 53 55 60 60 59 59 65 66 64 63 68 69 66 65 67 68
PWIND DIR E E NE E E SW NE NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS OV OV OV B2 B2 B2 OV B2 B2 B2 B2 B2 B1 B1 B2 B2
POP 12HR 90 90 60 40 50 50 40 40
RAIN SHWRS D D D L L C C C C C S C C S S C
TSTMS S S S S C S S
VAZ037-202000-
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA
38.14N 78.45W ELEV. 640 FT
1101 AM EDT WED MAY 20 2026
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26
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 97 61 69 53 61
TEMP 96 94 83 75 70 68 64 65 67 64 61 59 58 56 55 58 59 60 60
DEWPT 57 55 65 68 68 63 60 59 56 54 53 55 56 55 55 54 55 54 53
RH 27 27 55 79 93 84 87 81 68 70 75 87 93 96100 86 87 81 78
WIND DIR SW W N NE N NE NE NE NE NE NE NE NE NE NE NE NE NE NE
WIND SPD 8 10 5 5 4 6 9 10 10 10 9 8 6 8 9 8 8 8 9
CLOUDS SC B1 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV OV B2 B2 OV
POP 12HR 40 70 70 90 90
QPF 12HR 0.07 0.18 0.07 0.22 0.13
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C L C C L C C C L L D D D D D D D
TSTMS S C C C S S S S S
HEAT INDEX 85
MAX HEAT 95 94
DATE SAT 05/23/26 SUN 05/24/26 MON 05/25/26 TUE 05/26/26
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 51 67 57 74 61 81 63 83
TEMP 55 54 64 64 62 59 72 70 66 64 79 77 68 66 81 77
DEWPT 54 54 59 62 61 59 66 67 66 64 68 69 67 66 66 68
PWIND DIR NE NE NE E E S S NE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B2
POP 12HR 80 80 60 40 40 60 50 70
RAIN SHWRS D D D C L S S C C S S L C S C L
TSTMS C S S S C S C
MDZ003-202000-
HAGERSTOWN AIRPORT-WASHINGTON MD
39.71N 77.73W ELEV. 705 FT
1101 AM EDT WED MAY 20 2026
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26
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 90 54 65 51 61
TEMP 86 82 74 69 64 59 57 59 63 62 62 58 56 54 55 58 59 58 57
DEWPT 65 66 66 61 56 51 49 51 52 52 52 53 52 51 51 52 53 53 52
RH 50 58 76 76 75 75 75 75 67 70 70 83 86 90 86 80 80 83 83
WIND DIR W W N N N N NE NE NE NE E E NE E E E E E E
WIND SPD 9 8 8 8 6 9 10 8 6 5 3 2 2 4 6 8 8 8 6
CLOUDS B1 OV B2 B2 OV OV OV OV OV B2 B1 B2 B2 OV B2 B2 OV OV OV
POP 12HR 60 60 80 50 80
QPF 12HR 0.12 0.08 0.31 0.02 0.48
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L C C C L D L C C C L L D D D
TSTMS C L S S S S
HEAT INDEX 88 84
MAX HEAT 88 90
DATE SAT 05/23/26 SUN 05/24/26 MON 05/25/26 TUE 05/26/26
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 48 61 53 69 59 78 61 80
TEMP 52 53 58 59 57 57 66 66 63 62 74 74 65 64 78 76
DEWPT 51 51 55 56 56 56 62 62 61 60 66 66 63 62 65 66
PWIND DIR E E E E E SW E NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS OV OV OV B2 B2 OV B2 B2 B2 OV B2 B2 B1 B2 B1 B2
POP 12HR 90 90 70 30 50 50 30 40
RAIN SHWRS D D D L L C C C C C C C C C C C
TSTMS S S S S S
MDZ017-202000-
PATUXENT RIVER NAS MD
38.29N 76.41W ELEV. 39 FT
1101 AM EDT WED MAY 20 2026
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26
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 94 65 75 57 67
TEMP 90 89 80 74 72 68 69 72 73 71 66 63 61 59 61 65 65 65 61
DEWPT 65 64 65 67 68 65 60 58 57 57 56 55 55 55 55 55 54 54 53
RH 44 44 60 79 87 90 73 61 57 61 70 75 81 87 81 70 68 68 75
WIND DIR SE SE NE N NW N N N N NE NE NE NE NE NE E E E E
WIND SPD 9 12 6 4 3 6 10 12 12 11 8 8 8 9 11 12 13 12 10
CLOUDS FW SC B1 B2 B1 B2 OV OV OV OV OV B2 B2 OV OV OV B2 B2 B2
POP 12HR 20 50 50 70 80
QPF 12HR 0.05 0.10 0.07 0.06 0.15
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C S C C C L L D D D D L
TSTMS S S S S
HEAT INDEX 92 90 82
MAX HEAT 92 93
DATE SAT 05/23/26 SUN 05/24/26 MON 05/25/26 TUE 05/26/26
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 56 73 61 74 64 84 66 84
TEMP 59 63 71 67 66 67 73 71 69 70 81 76 72 71 83 77
DEWPT 56 59 62 62 64 63 65 65 65 66 67 67 67 66 66 66
PWIND DIR NE E NE NE E S SW N
WIND CHAR GN GN LT LT LT LT LT LT
AVG CLOUDS B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1
POP 12HR 80 70 70 40 50 50 50 50
RAIN SHWRS L D L L L C C C C C S C C C S C
TSTMS S C S S S S
WVZ502-202000-
PETERSBURG WV
38.99N 79.15W ELEV. 963 FT
1101 AM EDT WED MAY 20 2026
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26
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 92 56 67 50 63
TEMP 88 87 79 71 66 64 59 62 65 63 62 58 56 54 54 58 61 61 61
DEWPT 60 61 63 63 59 56 54 57 57 55 53 53 52 52 53 54 56 55 54
RH 39 42 58 76 78 75 83 84 75 75 72 83 86 93 96 86 84 81 78
WIND DIR W W N NE NE N NE NE NE NE NE E E E E E E E E
WIND SPD 9 8 4 3 2 2 3 3 4 4 3 2 1 1 2 2 3 4 4
CLOUDS B1 B2 B2 OV OV OV OV OV OV OV B2 B2 B2 B2 OV OV OV OV OV
POP 12HR 50 80 90 80 90
QPF 12HR 0.04 0.18 0.32 0.17 0.28
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C C L D L D L S C C D D D D D D D
TSTMS C C C S S S S S S S
HEAT INDEX 88 87
MAX HEAT 88 90
DATE SAT 05/23/26 SUN 05/24/26 MON 05/25/26 TUE 05/26/26
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 50 71 56 81 61 83 63 84
TEMP 55 54 67 68 61 60 77 76 66 65 79 78 68 66 80 79
DEWPT 53 53 60 60 58 59 65 65 62 62 66 66 62 62 65 65
PWIND DIR E E E E S W SW NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS OV B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B2 B2
POP 12HR 90 80 50 70 40 70 30 70
RAIN SHWRS D L D L C S C L C C C L C S L L
TSTMS S S S S C S
MDZ014-202000-
ANNAPOLIS MD
38.99N 76.49W ELEV. 7 FT
1101 AM EDT WED MAY 20 2026
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26
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 93 60 67 56 64
TEMP 91 88 78 71 69 65 64 66 66 66 63 60 59 58 59 64 63 62 59
DEWPT 63 65 72 70 66 59 54 54 54 55 56 56 55 54 53 52 51 51 51
RH 40 47 82 97 90 81 70 65 65 68 78 87 87 86 80 65 65 67 75
WIND DIR SW SW N N N N NE N N NE NE NE NE NE E E E E E
WIND SPD 8 9 6 0 5 9 10 11 11 10 6 5 5 8 10 12 13 12 11
CLOUDS FW B2 OV B2 OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 OV
POP 12HR 60 50 70 60 80
QPF 12HR 0.20 0.22 0.15 0.08 0.40
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L C C C C C C L C C C L L D D D D D
TSTMS C C S S S S
HEAT INDEX 92 90
MAX HEAT 93 94
DATE SAT 05/23/26 SUN 05/24/26 MON 05/25/26 TUE 05/26/26
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 54 65 58 71 61 80 64 82
TEMP 56 59 65 62 61 61 69 67 65 66 78 74 69 68 80 76
DEWPT 53 55 57 58 60 59 61 62 63 63 64 66 65 64 63 65
PWIND DIR E E NE NE E N NE NW
WIND CHAR GN GN LT LT LT LT LT LT
AVG CLOUDS OV OV OV OV B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR 90 90 70 40 50 50 40 30
RAIN SHWRS D D D D L C C S C C S C C C S C
TSTMS S S S S S S
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