Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
360 FOUS51 KLWX 091738 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 138 PM EDT Sat Aug 9 2025 VAZ054-092000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 138 PM EDT Sat Aug 9 2025 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 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 64 86 66 87 Temp 81 83 78 71 67 65 68 79 84 85 79 73 68 66 69 79 85 87 81 Dewpt 55 53 55 57 58 59 61 61 57 55 57 60 62 62 64 64 62 62 64 RH 41 36 45 61 73 81 78 54 40 36 47 64 81 87 84 60 46 43 56 Wind dir E E SE SE SE S NE E SE SE SE SE S S S SE SE SE SE Wind spd 8 8 6 3 2 2 1 3 6 9 8 5 3 2 1 3 6 9 9 Clouds FW CL CL CL CL CL CL FW FW FW FW CL FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 86 87 83 Max heat 81 82 83 84 86 87 Date Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 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 90 75 92 76 92 75 90 Temp 72 73 88 83 77 77 91 85 78 78 90 84 77 77 88 82 Dewpt 67 70 69 69 72 72 71 71 73 73 69 69 71 71 70 71 PWind dir S S S SW W NW E E Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC SC FW SC B1 B1 SC SC B1 SC SC SC B1 PoP 12hr 5 10 5 30 20 30 20 40 Rain shwrs C S C S S S C Tstms C S S S $$ MDZ013-092000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 138 PM EDT Sat Aug 9 2025 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 62 85 64 86 Temp 81 82 77 68 64 62 66 79 83 83 76 70 66 64 67 79 84 85 79 Dewpt 57 54 57 59 60 60 63 63 59 58 60 62 63 62 65 66 63 63 64 RH 44 38 50 73 87 93 90 58 44 43 58 76 90 93 93 64 49 48 60 Wind dir E E SE SE W W NE E E SE SE S SW SW SW S SE SE S Wind spd 5 5 2 2 1 1 1 2 5 5 3 2 2 1 1 2 5 5 4 Clouds FW CL CL CL CL CL CL FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 83 83 85 86 Max heat 81 81 83 84 85 87 Date Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 90 72 92 74 91 73 89 Temp 70 71 88 82 74 75 91 82 76 76 89 83 75 75 87 81 Dewpt 67 70 71 70 71 73 74 74 73 73 72 72 72 72 73 73 PWind dir S S S S SW N NE E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC FW FW FW SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 5 10 5 30 20 30 20 40 Rain shwrs C S C S S S C Tstms C S S S $$ MDZ011-092000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 138 PM EDT Sat Aug 9 2025 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 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 88 68 90 71 91 Temp 85 86 80 76 71 69 73 84 88 88 81 78 72 71 73 85 89 90 84 Dewpt 53 52 53 57 59 59 60 59 55 56 56 59 60 61 62 62 60 59 60 RH 33 31 39 52 66 70 64 43 33 34 42 52 66 71 68 46 38 35 44 Wind dir E E SE SE NW NW NE SE SE SE SE S SW SW SW SE SE SE S Wind spd 5 5 2 1 1 1 1 2 5 5 3 2 1 1 1 2 5 5 4 Clouds FW CL CL CL CL CL CL FW FW FW FW CL FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 80 84 81 86 89 84 Max heat 83 86 86 87 80 89 89 Date Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 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 73 94 78 97 79 95 78 94 Temp 75 77 92 85 80 81 96 85 81 81 93 86 80 80 92 84 Dewpt 66 67 67 67 70 71 70 71 71 70 69 69 69 69 69 69 PWind dir S S S S W N NE E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC FW FW FW SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 5 10 5 30 20 30 20 40 Rain shwrs C S C S S S C Tstms C S S S $$ WVZ052-092000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 138 PM EDT Sat Aug 9 2025 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 58 86 59 88 Temp 81 83 78 67 61 58 61 77 84 85 79 69 62 59 63 78 86 87 81 Dewpt 59 58 60 58 56 55 56 59 54 56 57 57 57 57 58 62 61 62 63 RH 47 43 54 73 84 90 84 54 36 37 47 66 84 93 84 58 43 43 54 Wind dir E SE SE S SW N N SE SE SE SE S SE N N SE SE SE SE Wind spd 4 4 2 2 1 0 0 2 5 5 3 2 1 0 0 2 5 5 5 Clouds CL CL CL CL CL FW FW FW FW CL CL FW CL FW FW CL FW FW CL PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 83 86 87 82 Max heat 81 83 83 84 86 88 Date Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 91 70 92 70 91 68 89 Temp 67 69 89 82 72 73 91 81 72 73 89 81 70 70 87 80 Dewpt 64 65 66 68 68 69 69 71 70 70 67 68 67 67 68 69 PWind dir S S S W W NW N E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC SC SC B1 B1 SC SC B1 SC SC SC B1 PoP 12hr 0 10 10 40 20 40 20 40 Rain shwrs C S C S S C Tstms C S S S $$ VAZ506-092000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 138 PM EDT Sat Aug 9 2025 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 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 85 59 87 62 88 Temp 82 83 76 67 63 60 63 79 85 86 79 69 64 62 64 80 86 87 81 Dewpt 63 59 57 57 57 57 60 64 60 59 58 60 61 62 64 69 66 65 67 RH 53 44 52 70 81 90 90 60 43 40 49 73 90100100 69 51 48 63 Wind dir NE E SE SE S SE N SE SE SE SE SE S S S S SE S SE Wind spd 4 5 5 2 1 1 1 2 4 5 5 3 2 1 1 2 4 5 5 Clouds CL FW CL CL CL CL CL CL FW FW FW FW CL FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 83 83 85 83 88 89 83 Max heat 83 85 85 85 88 90 Date Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 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 68 92 72 94 73 93 72 91 Temp 70 70 90 83 74 74 93 82 75 75 91 84 74 74 89 82 Dewpt 68 70 72 71 72 73 74 73 74 74 73 72 72 72 73 72 PWind dir S S S SW W NW NE E Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC FW SC SC FW SC B1 B1 SC SC B1 SC SC SC B1 PoP 12hr 5 10 5 40 20 40 20 40 Rain shwrs C S C S S C Tstms C S S S $$ VAZ037-092000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 138 PM EDT Sat Aug 9 2025 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 59 84 61 86 Temp 80 81 76 66 62 60 63 77 82 83 77 68 63 62 65 78 85 83 77 Dewpt 59 59 60 60 59 58 59 61 59 59 61 62 62 62 63 67 66 67 67 RH 49 47 58 81 90 93 87 58 46 44 58 81 97100 93 69 53 59 71 Wind dir E E E N N N N SE E SE E E N N N SE SE SE SE Wind spd 5 5 3 0 0 0 0 2 4 4 3 1 0 0 0 2 4 5 4 Clouds FW FW CL CL CL FW CL CL CL CL CL CL FW FW FW FW FW FW FW PoP 12hr 0 0 0 5 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF Heat index 81 81 82 83 87 86 Max heat 81 81 82 83 87 87 Date Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 87 70 90 70 88 70 88 Temp 69 70 86 80 72 73 89 79 72 73 87 79 72 72 86 79 Dewpt 68 69 69 69 70 71 70 72 71 71 70 70 71 70 69 70 PWind dir S S SW SW W NE N E Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC SC SC SC B1 B1 B1 SC B1 B1 B1 SC B1 PoP 12hr 5 20 5 40 20 40 30 40 Rain shwrs S C S C C S C Tstms S C S C S C $$ MDZ003-092000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 138 PM EDT Sat Aug 9 2025 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 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 85 59 87 60 89 Temp 82 84 79 67 63 59 64 78 85 86 80 69 63 60 64 79 87 88 82 Dewpt 63 61 61 57 55 54 57 61 57 58 59 56 56 57 60 66 64 63 64 RH 53 46 54 70 75 83 78 56 39 39 49 63 78 90 87 64 46 43 55 Wind dir E SE SE SE SE E NW S SE SE SE SE SE SE SE S S SE SE Wind spd 4 4 3 2 2 1 1 2 5 5 4 3 2 2 1 2 5 5 5 Clouds CL CL CL FW CL CL CL FW CL CL CL FW FW CL FW CL FW FW CL PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 83 84 81 88 89 83 Max heat 83 84 84 85 88 90 Date Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 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 66 93 70 94 71 92 70 90 Temp 68 70 91 84 73 73 93 82 73 73 90 82 72 72 88 81 Dewpt 63 67 70 68 68 70 71 72 71 71 70 69 68 68 70 70 PWind dir SE S S W W N NE E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW SC SC B1 B1 SC SC B1 SC SC SC B1 PoP 12hr 0 10 10 40 20 30 30 40 Rain shwrs C S C C S S C Tstms C S S S $$ MDZ017-092000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 138 PM EDT Sat Aug 9 2025 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 66 82 66 83 Temp 79 81 76 71 68 66 70 76 79 80 77 71 68 66 70 77 81 82 77 Dewpt 59 59 61 64 64 65 67 65 62 62 65 66 65 66 68 68 66 67 69 RH 50 47 60 79 87 97 90 69 56 54 67 84 90100 93 74 60 61 76 Wind dir N NE NE SE SE N NE E E SE SE S S S E E SE SE S Wind spd 6 5 3 3 2 2 2 3 4 5 4 4 3 2 2 3 5 6 6 Clouds CL FW CL CL CL FW FW FW FW CL FW CL FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 81 83 85 Max heat 81 82 83 85 Date Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 87 73 90 74 89 74 87 Temp 71 74 85 80 75 77 89 82 76 77 87 81 76 77 85 79 Dewpt 69 72 73 72 72 74 75 75 73 75 75 74 72 73 75 74 PWind dir S S S S SW NE SE E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW FW SC B1 SC SC B1 SC SC SC B1 PoP 12hr 5 10 5 20 20 30 20 30 Rain shwrs S S C S S S C Tstms S S S S $$ WVZ502-092000- Petersburg WV 38.99N 79.15W Elev. 963 ft 138 PM EDT Sat Aug 9 2025 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 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 86 57 88 59 90 Temp 83 84 74 65 61 58 60 77 86 86 75 66 61 60 62 81 89 87 78 Dewpt 63 61 63 60 59 57 58 64 60 59 62 59 58 58 60 66 66 66 67 RH 51 46 69 84 93 96 93 64 42 40 64 78 90 93 93 60 47 50 69 Wind dir E E SE NW SE S W E SE SE SE S S SW SW SE SE SE S Wind spd 3 4 3 2 2 2 1 2 4 5 4 2 2 2 1 2 2 4 4 Clouds FW CL FW CL CL FW SC CL CL CL FW CL CL FW FW FW FW FW FW PoP 12hr 0 0 0 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PFPF+PF+ Heat index 84 84 86 83 92 89 Max heat 84 85 86 86 92 92 Date Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 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 92 67 91 67 91 66 90 Temp 67 67 90 80 69 69 90 79 69 69 88 79 68 68 88 78 Dewpt 66 65 69 70 68 68 71 72 69 69 71 71 68 67 71 71 PWind dir SW S SW W W NW W S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC SC B1 B1 B1 B1 B1 B1 SC SC SC B1 PoP 12hr 5 20 10 50 20 50 30 50 Rain shwrs S C C S S S C C S C Tstms S C S S C S C $$ MDZ014-092000- Annapolis MD 38.99N 76.49W Elev. 7 ft 138 PM EDT Sat Aug 9 2025 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 66 82 66 82 Temp 78 80 77 71 68 67 69 77 79 80 78 73 68 67 69 77 80 82 79 Dewpt 57 56 58 63 64 64 64 64 60 60 62 65 65 65 65 66 64 64 65 RH 48 44 52 76 87 90 84 64 52 51 58 76 90 93 87 69 58 55 62 Wind dir NE NE E SE S N E E E SE SE S S SW SW SE SE S S Wind spd 8 5 2 2 1 0 1 2 5 4 2 2 2 1 1 2 6 6 5 Clouds CL CL CL CL CL CL FW FW FW CL FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 80 81 82 83 Max heat 80 82 82 83 Date Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 85 74 88 75 88 74 85 Temp 72 72 83 80 76 76 86 83 77 77 86 82 76 76 84 81 Dewpt 68 70 71 71 73 73 74 73 74 73 72 72 72 72 72 72 PWind dir S S S S SW NE E E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC FW FW FW SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 5 10 5 30 20 30 20 40 Rain shwrs C S C S S S C Tstms C S S S $$