Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
328 FOUS51 KLWX 102038 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 437 PM EDT Sun Aug 10 2025 VAZ054-110800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 437 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed 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 87 72 90 75 Temp 85 78 73 69 68 71 79 84 86 81 77 74 73 75 83 87 87 83 80 77 76 78 Dewpt 55 57 61 64 65 67 68 63 63 65 68 69 70 71 72 69 69 70 72 72 72 73 RH 36 48 66 84 90 87 69 49 46 58 74 84 90 87 70 55 55 65 77 85 87 85 Wind dir SE SE S S S SE SE SE SE SE S S S S S S S S S S S S Wind spd 8 8 5 4 2 1 3 6 10 10 6 5 4 3 5 6 9 9 6 5 5 4 Clouds CL CL CL CL SC SC SC FW FW FW FW FW SC SC FW FW SC SC FW FW SC SC PoP 12hr 0 0 0 20 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S Obvis PF Heat index 85 87 83 88 91 91 87 84 Max heat 84 85 87 91 92 86 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 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 92 76 91 74 90 73 89 71 91 Temp 90 83 78 79 88 83 78 77 88 83 76 76 87 82 74 75 88 83 Dewpt 71 72 73 73 69 70 70 68 67 67 70 70 67 67 69 69 65 66 PWind dir S SW NW N E SE SE S SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 B1 SC B1 SC SC SC SC FW SC SC SC FW FW FW SC PoP 12hr 40 20 30 10 20 10 20 5 10 Rain shwrs C S C S S Tstms C S C S $$ MDZ013-110800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 437 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 87 69 89 73 Temp 85 77 69 66 64 68 79 84 84 78 73 71 70 73 83 87 87 82 77 75 73 76 Dewpt 52 57 61 64 64 67 68 65 64 66 67 68 69 72 73 72 71 71 72 73 72 74 RH 32 50 76 93100 97 69 53 51 67 81 90 97 97 72 61 59 69 85 94 97 94 Wind dir SE SE S SW W W SE SE SE SE S S S S S SE SE S S S S SW Wind spd 5 3 2 2 1 1 2 5 5 5 3 2 2 2 3 5 6 5 4 2 2 2 Clouds CL CL CL CL FW SC FW FW FW FW FW FW FW SC FW SC FW FW FW FW FW SC PoP 12hr 0 0 0 10 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Heat index 86 85 89 94 93 86 Max heat 83 86 86 94 95 83 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 92 73 90 72 90 70 89 69 90 Temp 90 81 75 76 87 82 75 75 87 81 74 74 86 80 72 72 87 81 Dewpt 73 74 74 73 73 72 70 67 68 69 70 71 69 69 69 70 68 68 PWind dir S W NW N E SE SE S SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 B1 SC B1 SC FW FW SC FW FW SC SC FW FW FW SC PoP 12hr 40 30 30 10 20 10 20 5 10 Rain shwrs S C C C S S Tstms C C C $$ MDZ011-110800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 437 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed 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 91 74 93 78 Temp 86 79 78 73 71 74 84 89 89 82 80 75 75 79 87 91 91 85 84 80 79 82 Dewpt 50 56 59 62 64 64 65 61 61 62 66 67 69 69 70 69 68 68 70 71 71 72 RH 29 45 52 68 79 71 53 39 39 51 62 76 82 72 57 49 47 57 63 74 77 72 Wind dir SE SE SE SW W N SE SE SE SE S S S S S S SE S S S S S Wind spd 5 3 2 1 1 0 2 5 6 4 2 2 1 1 3 5 6 5 3 2 2 2 Clouds CL CL CL CL FW FW FW FW FW FW FW FW FW FW FW SC SC FW FW FW FW SC PoP 12hr 0 0 0 10 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Heat index 86 89 89 83 82 92 96 95 88 88 83 87 Max heat 84 81 89 89 83 96 97 88 87 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 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 96 78 95 76 94 75 94 75 95 Temp 94 84 81 82 92 84 80 80 92 84 79 79 91 83 77 79 92 84 Dewpt 71 71 72 71 68 68 68 65 65 66 69 68 66 65 67 68 65 65 PWind dir S W NW N NE E SE S S Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 SC SC B1 SC FW FW SC FW FW SC SC FW FW FW SC PoP 12hr 40 30 30 10 20 10 20 5 10 Rain shwrs S C C S C S S Tstms C C C S $$ WVZ052-110800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 437 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 59 88 66 91 69 Temp 86 77 68 63 61 65 79 85 86 80 73 69 67 71 82 88 88 82 76 72 71 74 Dewpt 52 54 58 59 59 61 65 63 63 65 66 67 67 67 70 68 67 68 70 69 69 70 RH 31 45 70 87 93 87 62 48 46 60 79 93100 87 67 52 50 63 82 90 93 87 Wind dir SE SE S S N N S SE SE SE S S S S S SE SE S S S S SW Wind spd 5 4 2 1 0 0 2 5 6 5 4 2 1 1 2 5 5 4 3 2 1 1 Clouds CL CL CL CL CL CL CL FW FW FW CL CL FW FW FW SC SC SC SC FW SC SC PoP 12hr 0 0 0 20 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C Tstms S S Heat index 86 87 82 86 92 91 85 Max heat 84 86 87 92 92 83 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 69 90 67 89 67 90 66 91 Temp 88 80 72 73 88 81 71 71 86 80 71 72 87 81 71 72 89 81 Dewpt 69 71 71 70 68 68 67 65 64 66 67 67 66 67 67 66 65 67 PWind dir W W NW NW NE SE SE SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B2 B1 B1 SC B1 SC FW FW SC SC SC FW SC FW FW FW SC PoP 12hr 60 20 30 5 20 10 20 5 20 Rain shwrs C L S C S S S Tstms C S C S S S $$ VAZ506-110800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 437 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed 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 64 88 69 91 73 Temp 86 78 69 66 64 68 79 85 87 80 75 72 70 72 83 88 89 83 78 75 73 75 Dewpt 55 58 62 64 64 67 72 68 67 68 69 71 70 72 75 73 71 72 72 73 73 74 RH 35 50 78 93100 97 79 57 52 67 82 97100100 77 61 56 70 82 94100 97 Wind dir SE SE SE S S S S S S S S S S S S S S S S S S SW Wind spd 5 5 3 2 2 1 3 5 6 6 4 3 2 2 3 5 6 5 4 3 2 2 Clouds CL CL CL CL FW SC SC FW FW FW FW FW FW SC FW SC SC FW SC FW SC SC PoP 12hr 0 5 0 20 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Tstms S Heat index 88 90 83 90 96 95 88 Max heat 84 88 90 96 96 85 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 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 94 73 91 71 90 70 90 69 91 Temp 90 82 75 75 89 82 74 74 88 82 74 73 87 81 72 72 89 83 Dewpt 74 75 74 73 73 72 70 68 69 69 70 70 70 69 68 70 69 68 PWind dir SW W NW N NE SE SE S S Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 B1 SC B1 SC SC SC SC SC SC SC SC SC FW FW SC PoP 12hr 50 20 30 10 20 10 20 10 20 Rain shwrs S C S C S S S Tstms C S C S S $$ VAZ037-110800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 437 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 85 67 87 70 Temp 85 78 69 65 65 67 77 83 82 77 72 70 69 71 80 85 84 80 75 72 71 73 Dewpt 56 59 62 63 64 65 68 66 66 68 70 70 69 70 71 70 70 71 72 71 71 71 RH 37 52 78 93 97 93 74 57 58 74 93100100 97 74 61 63 74 90 97100 93 Wind dir SE SE NE N N N S S SE SE S SW SW SW S S S S S SW SW SW Wind spd 5 3 1 0 0 0 2 5 5 5 2 1 1 1 3 5 6 4 2 2 2 2 Clouds CL CL CL FW B1 SC SC SC SC FW FW SC SC SC SC B1 B1 FW FW SC SC SC PoP 12hr 0 20 10 30 10 QPF 12hr 0 0 0 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S Tstms S S S Obvis PF PF Heat index 85 84 83 90 88 83 Max heat 84 85 85 90 90 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 70 89 70 88 69 86 67 88 Temp 87 78 72 74 87 80 73 73 85 78 72 72 85 77 70 70 85 78 Dewpt 70 71 71 71 70 71 70 70 68 69 69 70 68 68 68 68 68 67 PWind dir SW W N N NE NE SE S S Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B2 B1 B1 SC B1 SC SC SC B1 SC SC SC B1 FW SC FW SC PoP 12hr 60 20 40 20 30 20 30 10 20 Rain shwrs S L S C S C S C S Tstms S C S C S C S S $$ MDZ003-110800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 437 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed 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 61 89 67 92 71 Temp 85 77 68 64 61 66 79 86 87 80 73 70 68 71 82 89 89 83 77 74 71 74 Dewpt 52 55 56 57 59 63 68 66 64 66 66 67 67 69 72 71 69 69 70 70 69 71 RH 32 47 65 78 93 90 69 51 46 62 79 90 97 93 72 56 52 63 79 87 93 90 Wind dir SE SE SE S SE S S S SE SE S S S S S S S S S S S S Wind spd 6 4 3 2 2 1 2 5 5 5 4 3 2 2 2 5 5 4 3 3 2 2 Clouds CL CL FW CL CL FW CL CL CL CL FW FW FW FW FW FW FW FW SC SC SC SC PoP 12hr 0 0 0 10 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Heat index 88 88 82 87 95 94 87 Max heat 83 88 88 95 96 84 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 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 93 71 91 68 90 68 91 68 93 Temp 89 81 73 73 88 82 71 71 88 81 71 72 88 82 72 72 89 83 Dewpt 72 71 71 71 70 68 66 65 66 66 67 68 68 67 67 67 68 67 PWind dir SW W NW N NE SE SE SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 SC SC SC FW FW SC FW FW FW SC FW FW FW FW PoP 12hr 50 30 30 10 20 10 20 10 20 Rain shwrs S C C C S S S Tstms S C C C S S S $$ MDZ017-110800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 437 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 83 71 86 73 Temp 79 76 72 69 69 73 77 80 82 77 74 72 71 75 80 83 83 79 76 75 73 78 Dewpt 63 68 67 67 67 70 70 67 67 70 70 70 70 72 73 74 73 73 72 72 72 74 RH 58 76 84 93 93 90 79 65 61 79 87 93 97 90 79 74 72 82 87 90 97 88 Wind dir SE SE SE S S E E SE SE S S S S S S SE S S S S SW SW Wind spd 6 6 5 3 2 2 3 5 8 6 5 4 3 2 4 6 9 8 6 5 5 4 Clouds CL CL FW CL FW FW FW FW FW FW FW FW SC SC SC FW FW FW FW FW FW FW PoP 12hr 0 5 5 10 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 82 85 84 90 89 Max heat 81 82 85 90 90 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 73 87 73 88 72 86 70 86 Temp 85 81 75 78 85 81 76 77 85 80 74 76 84 79 72 75 84 79 Dewpt 76 75 73 74 75 74 73 73 72 72 71 72 70 69 69 71 69 70 PWind dir S SW N N NE SE SE SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 SC SC B1 SC FW FW SC FW FW FW FW FW FW FW FW PoP 12hr 30 20 30 10 20 10 20 5 10 Rain shwrs C S S S C S S Tstms S S C $$ WVZ502-110800- Petersburg WV 38.99N 79.15W Elev. 963 ft 437 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed 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 59 90 65 91 67 Temp 87 78 67 63 61 63 79 87 86 78 70 67 65 68 82 88 87 79 73 70 68 70 Dewpt 57 59 60 59 59 61 66 66 66 69 68 66 65 66 70 70 70 71 70 68 66 68 RH 36 52 78 87 93 93 64 50 51 74 93 97100 93 67 55 57 77 90 93 93 93 Wind dir SE SE SW S S S S E SE SE S S SW S SE SE S S SW SW SW W Wind spd 5 4 3 2 2 2 2 3 5 5 3 2 2 1 2 3 3 3 2 2 2 2 Clouds FW CL CL CL FW FW FW FW FW FW FW FW FW SC FW B1 B1 SC SC SC SC B1 PoP 12hr 0 10 5 30 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S S C Tstms S C S Obvis PF Heat index 89 88 86 93 92 Max heat 86 89 90 93 94 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 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 90 67 89 65 90 66 91 66 91 Temp 87 77 69 69 86 78 67 67 87 78 69 69 88 78 69 69 89 79 Dewpt 72 72 69 68 71 70 66 65 69 69 67 67 69 69 67 67 70 70 PWind dir W W NW W NE S SE S S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B2 B1 B1 B1 B1 SC SC SC B1 SC SC SC B1 SC SC SC SC PoP 12hr 70 30 50 10 30 10 30 10 20 Rain shwrs C L C S C C C S Tstms C C C C C C S $$ MDZ014-110800- Annapolis MD 38.99N 76.49W Elev. 7 ft 437 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 82 71 84 74 Temp 82 77 72 69 68 70 77 80 81 78 75 72 72 74 80 83 83 80 78 76 75 77 Dewpt 57 61 66 67 66 67 68 65 64 67 70 70 71 71 72 71 71 71 73 73 73 73 RH 43 58 81 93 93 90 74 60 56 69 84 93 97 90 77 67 67 74 85 90 94 87 Wind dir SE SE S S SW N SE SE SE S S S S S S S S S S S S SW Wind spd 4 3 3 2 1 0 2 6 6 5 5 3 2 2 4 8 9 8 5 5 3 3 Clouds CL CL CL CL FW SC SC FW CL FW FW FW FW SC FW FW FW FW FW FW FW SC PoP 12hr 0 0 5 10 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 82 82 83 84 88 88 83 Max heat 82 82 83 88 88 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 75 86 73 85 73 85 71 86 Temp 85 81 77 78 84 82 77 77 84 81 75 75 83 80 74 74 84 80 Dewpt 74 74 74 74 73 72 72 69 69 69 72 71 69 69 70 70 68 68 PWind dir S SW N NW NE SE SE S S Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 B1 SC B1 SC FW FW SC FW FW SC SC FW FW FW FW PoP 12hr 30 30 30 10 20 10 20 5 10 Rain shwrs C C S S C S S Tstms C S C $$