Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
775 FOUS51 KLWX 111439 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 1039 AM EDT Mon Aug 11 2025 VAZ054-112000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 1039 AM EDT Mon Aug 11 2025 Date Mon 08/11/25 Tue 08/12/25 Wed 08/13/25 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 87 73 90 76 92 Temp 80 86 87 82 77 75 74 75 83 88 88 84 80 78 76 77 85 89 88 84 Dewpt 69 67 67 68 70 71 72 71 71 69 69 71 73 73 73 72 73 71 70 72 RH 69 53 52 63 79 87 93 87 67 54 54 65 79 85 90 85 67 56 55 67 Wind dir SE SE SE S S S S S S S S S S S S SW SW SW SW S Wind spd 4 6 10 10 6 5 4 4 5 8 10 9 6 5 5 5 5 6 6 5 Clouds B2 B1 SC SC FW FW B1 SC FW SC SC SC FW FW SC SC SC B1 B2 B2 PoP 12hr 5 0 20 10 50 QPF 12hr 0 0 0 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C C Tstms S C C S Heat index 83 89 90 85 88 92 92 89 84 92 95 93 90 Max heat 89 90 92 94 88 95 94 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 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 76 90 74 90 72 89 71 91 Temp 79 78 88 83 78 75 87 83 76 75 87 82 75 74 89 83 Dewpt 73 73 69 69 69 67 65 67 69 69 66 65 68 69 64 65 PWind dir W N N E SE SE S S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 SC FW FW SC SC FW FW SC FW FW FW SC PoP 12hr 30 30 10 20 10 10 5 10 Rain shwrs C C S Tstms S C S $$ MDZ013-112000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 1039 AM EDT Mon Aug 11 2025 Date Mon 08/11/25 Tue 08/12/25 Wed 08/13/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 71 89 74 91 Temp 77 85 86 80 74 72 71 73 83 87 87 82 78 76 74 76 85 89 88 82 Dewpt 68 69 68 69 70 71 71 73 74 73 72 73 73 73 73 74 75 74 75 75 RH 74 59 55 69 87 97100100 74 63 61 74 85 90 97 94 72 61 66 79 Wind dir S SE SE S S S S S S SE S S S S S SW S S S S Wind spd 2 5 6 5 3 2 2 2 3 5 6 5 3 2 2 2 3 5 5 3 Clouds B1 SC SC FW FW FW SC SC FW SC SC FW FW SC SC B1 B1 B1 B1 B2 PoP 12hr 0 0 20 20 50 QPF 12hr 0 0 0 0 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C C C C Tstms S S C C S Obvis PF Heat index 89 89 83 90 94 94 87 94 98 98 89 Max heat 89 89 94 96 84 98 99 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 90 71 89 70 89 69 91 Temp 76 75 88 82 74 73 87 81 73 73 86 81 72 73 88 82 Dewpt 74 74 71 71 68 66 66 67 69 69 67 68 68 69 66 67 PWind dir W N N E SE SE S S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 SC FW FW SC FW FW FW SC FW FW FW SC PoP 12hr 40 30 10 20 10 10 5 10 Rain shwrs C S S C S Tstms S C S $$ MDZ011-112000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 1039 AM EDT Mon Aug 11 2025 Date Mon 08/11/25 Tue 08/12/25 Wed 08/13/25 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 92 76 94 79 96 Temp 81 92 92 85 81 79 77 77 87 90 91 88 84 82 80 80 90 92 91 87 Dewpt 69 65 65 66 69 70 71 71 70 70 70 70 72 72 72 73 72 71 72 72 RH 67 41 41 53 67 74 82 82 57 52 50 55 67 72 77 79 56 51 54 61 Wind dir S SE SE SE S S S S S SE SE S S S S SW S S S S Wind spd 2 5 6 5 3 2 1 2 3 6 8 5 3 2 2 2 3 5 5 3 Clouds B1 SC SC FW FW FW SC FW FW SC SC FW FW SC SC B1 B1 B1 B1 B2 PoP 12hr 0 0 20 20 50 QPF 12hr 0 0 0 0 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C C C C Tstms S S C C C Heat index 84 94 94 87 84 92 96 97 93 90 87 84 84 97 99 99 94 Max heat 94 95 86 96 97 93 85 99 99 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 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 78 95 75 94 75 94 75 95 Temp 83 79 91 86 81 76 90 86 79 76 90 86 80 76 92 87 Dewpt 72 71 69 68 66 64 64 66 68 68 65 65 67 66 64 64 PWind dir W N N E SE SE S S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 SC SC B1 SC FW FW SC FW FW FW SC FW FW FW SC PoP 12hr 40 30 10 20 10 10 5 10 Rain shwrs C S S C S Tstms C C S $$ WVZ052-112000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 1039 AM EDT Mon Aug 11 2025 Date Mon 08/11/25 Tue 08/12/25 Wed 08/13/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 67 91 70 91 Temp 78 88 88 82 74 70 69 71 83 89 87 82 76 73 72 74 83 89 87 81 Dewpt 66 66 66 68 69 69 69 69 70 69 69 70 71 70 70 70 71 70 69 71 RH 67 48 48 63 84 97100 93 65 52 55 67 85 90 93 87 67 54 55 72 Wind dir SE SE SE S S S SE S S SE S S S S S SW W W W W Wind spd 3 5 8 5 5 2 2 1 3 5 5 4 3 2 2 1 2 4 4 2 Clouds SC SC SC FW FW CL SC FW FW SC SC SC SC FW SC SC SC B2 B2 B1 PoP 12hr 0 0 20 20 60 QPF 12hr 0 0 0 0 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S L L C Tstms S S S C C S Obvis PF Heat index 90 90 85 87 94 91 86 88 94 91 85 Max heat 90 90 94 94 83 94 94 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 89 66 89 67 90 66 92 Temp 74 73 87 81 70 70 87 80 70 71 88 82 70 71 90 83 Dewpt 71 70 66 66 64 64 63 65 66 67 65 66 66 66 64 65 PWind dir NW NW N NE SE SE S S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 SC FW FW SC SC FW FW SC FW FW FW SC PoP 12hr 30 30 10 20 5 10 5 10 Rain shwrs C C S Tstms S C S $$ VAZ506-112000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 1039 AM EDT Mon Aug 11 2025 Date Mon 08/11/25 Tue 08/12/25 Wed 08/13/25 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 87 71 91 74 93 Temp 78 85 86 81 74 72 72 73 83 89 89 84 79 76 74 75 85 90 88 82 Dewpt 72 70 69 71 72 72 72 73 74 72 71 72 74 74 73 75 75 74 73 75 RH 82 61 57 72 93100100100 74 57 56 67 85 94 97100 72 60 61 79 Wind dir S S S S S S S S S S S S S S S SW SW SW SW SW Wind spd 3 5 8 8 5 3 2 2 4 5 6 5 4 3 3 2 3 4 4 4 Clouds B2 SC B1 SC FW FW B2 SC FW SC SC FW SC FW SC SC SC B1 B1 B2 PoP 12hr 5 0 30 10 50 QPF 12hr 0 0 0 0 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C C Tstms S S C C S Obvis PF Heat index 90 90 85 90 96 95 90 94 99 96 89 Max heat 90 92 96 96 87 99 99 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 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 74 91 70 90 69 91 68 93 Temp 76 75 88 82 73 72 87 82 72 72 88 82 72 71 90 83 Dewpt 74 74 72 70 68 67 67 67 68 69 69 68 68 69 67 66 PWind dir W N N NE SE SE S S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 SC FW FW SC SC FW FW SC FW FW FW SC PoP 12hr 30 30 10 20 10 20 5 10 Rain shwrs C C S S Tstms S C S S $$ VAZ037-112000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 1039 AM EDT Mon Aug 11 2025 Date Mon 08/11/25 Tue 08/12/25 Wed 08/13/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 69 87 71 89 Temp 77 85 85 79 73 71 70 71 81 85 83 79 74 73 71 73 83 87 84 79 Dewpt 68 65 67 69 71 71 70 71 71 69 69 70 72 72 71 70 70 68 70 71 RH 74 51 55 72 93100100100 72 59 63 74 93 97100 90 65 53 63 77 Wind dir SE SE SE SE S S S S S S S S SW SW SW SW SW S SW SW Wind spd 2 5 5 5 2 1 1 1 3 5 5 5 3 2 2 2 2 3 4 3 Clouds B2 B1 B1 B1 SC SC SC SC SC B1 B1 FW FW SC SC SC SC B2 B2 B1 PoP 12hr 20 10 40 20 50 QPF 12hr 0 0 0.03 0 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S S S S S S C C S Tstms S C C S S C C S Obvis PF PF Heat index 87 88 85 89 87 87 91 88 Max heat 87 88 89 89 91 91 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 88 69 87 68 86 66 88 Temp 73 73 85 78 72 72 85 78 70 70 85 78 70 69 86 78 Dewpt 71 71 70 71 69 68 68 68 68 69 68 68 67 67 65 65 PWind dir W N N NE NE SE SW S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 SC SC SC B1 SC SC FW B1 FW FW FW SC PoP 12hr 20 40 20 30 10 20 5 10 Rain shwrs S C S C S Tstms S C S C S $$ MDZ003-112000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 1039 AM EDT Mon Aug 11 2025 Date Mon 08/11/25 Tue 08/12/25 Wed 08/13/25 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 89 69 92 71 93 Temp 79 87 89 82 74 71 70 72 83 89 89 84 77 74 72 75 84 89 88 83 Dewpt 69 69 68 68 69 70 69 71 73 73 71 70 72 72 70 72 75 73 72 72 RH 72 55 50 63 84 97 97 97 72 59 56 63 85 93 93 90 74 59 59 70 Wind dir S S S SE S S SE S S S S S S S S SW SW W W W Wind spd 3 5 5 5 5 3 2 2 3 5 5 5 4 3 2 2 3 4 5 4 Clouds SC FW FW FW FW FW SC FW FW SC SC SC SC SC SC SC SC B2 B2 B1 PoP 12hr 0 0 20 20 60 QPF 12hr 0 0 0 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S S S L L C Tstms S S S S C C C Obvis PF PF Heat index 91 93 85 89 97 95 88 92 97 95 88 Max heat 91 93 97 97 86 97 96 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 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 71 90 67 90 68 91 68 93 Temp 74 73 87 81 70 70 87 81 71 71 88 82 71 71 91 83 Dewpt 72 71 68 65 64 64 64 64 64 67 66 66 65 66 66 65 PWind dir NW NW N NE SE S S S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 FW FW FW SC SC FW FW SC FW FW FW FW PoP 12hr 40 30 10 10 10 10 5 10 Rain shwrs C S C Tstms C S $$ MDZ017-112000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 1039 AM EDT Mon Aug 11 2025 Date Mon 08/11/25 Tue 08/12/25 Wed 08/13/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 71 86 74 88 Temp 79 81 82 77 74 72 72 75 80 84 84 80 77 75 74 77 83 86 85 81 Dewpt 70 70 70 71 72 71 71 72 73 74 74 74 74 73 72 73 74 74 75 74 RH 74 69 67 82 93 97 97 90 79 72 72 82 90 94 93 87 74 68 72 79 Wind dir E SE SE S S S SW SW S S S S S S SW SW S S S S Wind spd 4 6 9 8 5 4 3 3 5 8 9 6 5 5 5 5 5 6 8 5 Clouds B2 B1 SC SC SC FW SC SC SC SC SC FW FW FW FW SC SC B1 B1 B1 PoP 12hr 10 5 20 20 40 QPF 12hr 0 0 0 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S S S C C C Tstms S S S C S Obvis PF Heat index 85 86 84 91 91 84 90 94 94 86 Max heat 85 86 91 93 94 95 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 88 73 87 71 86 70 87 Temp 76 78 85 81 75 77 85 80 73 76 84 79 72 74 84 79 Dewpt 73 74 74 73 71 70 70 70 69 71 69 68 68 69 67 69 PWind dir SW N NE NE E E SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 SC SC B1 SC FW FW SC SC FW FW FW FW FW FW FW PoP 12hr 30 30 10 20 10 10 5 5 Rain shwrs C S C S Tstms S C S $$ WVZ502-112000- Petersburg WV 38.99N 79.15W Elev. 963 ft 1039 AM EDT Mon Aug 11 2025 Date Mon 08/11/25 Tue 08/12/25 Wed 08/13/25 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 90 66 91 67 90 Temp 78 90 89 79 71 68 67 68 83 88 86 78 72 70 68 70 82 86 86 79 Dewpt 66 66 67 69 68 68 66 67 70 70 71 71 70 69 67 69 72 72 71 71 RH 67 45 48 72 90100 97 97 65 55 61 79 93 97 97 97 72 63 61 77 Wind dir S SE SE SE S S S S SE SE S S SW SW W W W W W W Wind spd 2 3 5 5 3 2 2 1 2 3 4 3 2 2 2 2 2 3 4 3 Clouds FW FW B1 B1 FW FW FW SC FW B1 B1 SC SC SC SC B1 B1 B2 B2 B1 PoP 12hr 10 5 40 20 70 QPF 12hr 0 0 0.20 0 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S S C C L L C Tstms C C S S S C C C Obvis PFPF+ Heat index 93 92 87 93 91 87 92 91 Max heat 93 93 93 94 92 94 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 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 88 64 90 64 90 65 92 Temp 69 69 84 77 67 67 87 77 67 66 87 78 68 67 89 79 Dewpt 69 69 71 69 64 63 67 68 64 64 69 69 66 65 67 68 PWind dir W NW W E S S SW S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 SC SC SC B1 SC FW SC B1 FW FW SC SC PoP 12hr 30 50 10 30 10 20 5 20 Rain shwrs C S C C C S S Tstms C C C S S $$ MDZ014-112000- Annapolis MD 38.99N 76.49W Elev. 7 ft 1039 AM EDT Mon Aug 11 2025 Date Mon 08/11/25 Tue 08/12/25 Wed 08/13/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 72 85 75 87 Temp 77 81 82 79 76 74 73 75 80 84 84 81 79 77 76 77 83 86 85 82 Dewpt 69 67 67 70 72 72 72 72 73 73 72 73 75 74 74 74 73 74 73 74 RH 76 63 61 74 87 93 97 90 79 70 67 77 88 90 94 90 72 68 67 77 Wind dir SE SE S S S S SW S S S S S S S S SW S S S S Wind spd 3 6 8 8 5 3 2 2 5 9 10 8 5 4 4 3 5 8 8 5 Clouds B1 FW FW FW FW FW SC SC FW SC SC FW FW SC SC B1 B1 B1 B1 B1 PoP 12hr 5 0 20 20 50 QPF 12hr 0 0 0 0 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C C C C Tstms S S C C S Obvis PF Heat index 83 85 84 90 90 86 89 94 92 88 Max heat 83 85 90 90 85 94 94 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 87 73 85 72 85 71 86 Temp 78 77 85 81 77 75 84 80 75 75 83 80 74 74 84 80 Dewpt 75 74 72 71 71 68 68 69 70 70 68 68 69 69 67 68 PWind dir W N N NE SE E S S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 SC FW FW SC FW FW FW SC FW FW FW FW PoP 12hr 40 30 20 20 10 10 5 10 Rain shwrs C S S C S S Tstms S C S $$