Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
825 FOUS51 KLWX 132338 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 738 PM EDT Wed Aug 13 2025 VAZ054-140800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 738 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 75 89 75 89 73 Temp 81 79 77 76 77 83 87 86 83 80 77 75 77 84 87 87 83 79 76 74 76 Dewpt 73 73 74 74 73 73 71 71 72 72 71 71 70 70 68 68 70 71 71 72 72 RH 77 82 90 94 87 72 59 61 70 77 82 87 79 63 53 53 65 77 85 93 87 Wind dir W W SW W NW NW NW N E N N N N NE NE E E E E E E Wind spd 6 5 4 4 5 5 5 5 5 3 3 5 5 6 6 8 8 5 4 4 5 Clouds B2 B1 SC SC SC SC B1 SC SC SC SC SC FW FW SC SC SC FW FW SC SC PoP 12hr 50 30 20 20 10 QPF 12hr 0.21 0.11 0.03 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S S S S Tstms C S C S S Heat index 86 89 93 91 88 84 88 91 91 87 Max heat 88 84 94 93 87 91 91 86 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 92 74 91 72 89 70 84 Temp 86 82 75 76 89 84 78 77 88 81 75 75 85 79 73 72 81 76 Dewpt 67 68 69 69 67 68 70 69 66 67 69 68 65 65 66 66 64 64 PWind dir E S SW W NE SE SE E NE Wind char LT LT LT LT LT LT GN LT GN Avg clouds SC SC FW FW FW SC FW FW FW SC SC SC SC SC SC SC SC B1 PoP 12hr 20 5 10 10 20 10 30 20 30 Rain shwrs S S C S C Tstms S C S S $$ MDZ013-140800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 738 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 72 89 72 89 71 Temp 78 76 75 73 75 82 86 86 81 77 74 72 75 82 87 86 81 77 74 72 74 Dewpt 74 73 74 73 74 75 75 74 75 73 71 69 71 72 72 71 72 72 72 71 72 RH 88 90 97100 97 79 70 68 82 87 90 90 87 72 61 61 74 85 93 97 93 Wind dir NW SW W NW NW N N N N N N N N NE E E E E E E E Wind spd 4 2 2 2 2 3 4 4 2 2 2 2 4 5 5 5 4 2 2 2 3 Clouds B2 B2 B1 B1 SC SC B1 SC SC SC SC SC FW FW SC SC SC FW SC SC SC PoP 12hr 50 40 10 20 10 QPF 12hr 0.03 0.45 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C S S S Tstms C S C S S Heat index 89 95 94 87 87 94 91 85 Max heat 85 95 94 85 94 94 84 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 70 92 72 89 70 87 67 83 Temp 85 80 73 74 89 83 75 74 86 79 72 72 84 77 70 70 81 75 Dewpt 70 70 69 70 70 71 69 68 68 68 67 67 66 67 66 66 65 65 PWind dir E S S W NE SE SE E NE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC FW FW FW FW FW FW FW SC SC SC SC B1 B1 SC SC B1 PoP 12hr 20 5 10 20 20 20 30 30 30 Rain shwrs S S S S C C S C Tstms S S C S S $$ MDZ011-140800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 738 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 78 94 77 94 76 Temp 81 82 80 79 80 87 90 91 84 84 79 78 81 87 91 91 84 83 79 78 79 Dewpt 72 73 73 73 72 72 72 71 72 71 70 68 68 68 68 68 68 70 70 70 69 RH 74 74 79 82 77 61 56 52 67 65 74 71 65 53 47 47 59 65 74 76 72 Wind dir SW SW W NW NW N N N N N N N N NE NE E E E E E E Wind spd 5 2 1 2 2 3 4 4 2 1 2 2 3 5 5 5 3 2 2 2 2 Clouds OV B2 B1 B1 SC SC B1 B1 SC SC SC FW FW FW SC SC SC FW SC SC SC PoP 12hr 50 40 10 20 10 QPF 12hr 0.03 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C S S S Tstms C S C S S Heat index 85 87 84 84 94 97 98 90 89 84 91 95 95 87 87 Max heat 90 87 84 97 99 90 84 95 96 87 Flood A Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 76 96 77 94 75 93 73 88 Temp 90 83 79 79 94 85 81 80 90 82 78 78 89 79 75 75 85 77 Dewpt 67 67 68 68 67 67 68 67 66 66 67 66 64 65 65 64 62 63 PWind dir E S SW W NE SE SE E NE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC FW FW FW SC FW FW FW SC SC SC SC B1 B1 SC SC B1 PoP 12hr 20 5 20 20 20 20 30 30 30 Rain shwrs S S S S S C C S S C Tstms S S S S C S S $$ WVZ052-140800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 738 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 89 66 89 67 Temp 77 74 72 71 74 81 85 86 80 74 70 68 71 81 86 87 81 73 70 68 71 Dewpt 72 72 71 70 71 71 69 68 69 68 66 65 65 67 66 65 68 68 67 67 68 RH 85 93 97 97 90 72 59 55 69 82 87 90 81 63 51 48 65 84 90 97 90 Wind dir W W W W NW N NW N NW N N N N N NE NE E SE SE E E Wind spd 3 2 2 2 3 5 5 4 2 2 2 2 3 3 4 4 2 1 1 1 2 Clouds B2 B2 B1 B1 SC SC B1 SC SC SC SC FW FW FW SC SC FW FW FW SC SC PoP 12hr 40 30 10 20 10 QPF 12hr 0.06 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C S S Tstms C C Heat index 85 89 89 83 83 88 89 84 Max heat 89 90 88 89 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 67 92 69 90 67 88 64 82 Temp 86 80 70 71 89 83 72 73 87 79 69 70 84 77 68 67 79 73 Dewpt 67 67 67 68 66 68 67 67 66 66 65 65 64 65 63 63 62 63 PWind dir SE S W NW N SE SW E NE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC FW FW FW FW SC FW SC SC SC SC SC B1 B1 B1 B1 B1 PoP 12hr 20 5 20 10 20 20 30 30 40 Rain shwrs S S S S C C S S C Tstms S S S C S S $$ VAZ506-140800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 738 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 72 89 70 90 70 Temp 79 76 74 73 74 82 87 86 81 76 74 71 73 83 88 87 81 77 73 71 73 Dewpt 74 74 74 73 74 76 75 73 73 73 71 69 70 73 72 71 72 72 72 71 73 RH 85 94100100100 82 68 65 77 90 90 93 90 72 59 59 74 85 97100100 Wind dir NE SW W NW NW N N N N N N N N NE NE E E E SE E E Wind spd 3 3 2 2 3 5 5 5 3 2 2 3 3 4 5 5 4 2 2 2 2 Clouds B2 B2 B1 B1 SC SC B1 B1 SC SC SC SC FW FW SC SC SC SC FW SC SC PoP 12hr 40 30 20 20 10 QPF 12hr 0.05 0.01 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S S S Tstms C S C C S Heat index 89 96 93 86 89 95 93 85 Max heat 84 96 97 84 95 95 84 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 70 94 71 91 69 89 66 84 Temp 86 81 73 73 91 83 74 73 88 81 72 71 85 78 69 68 81 74 Dewpt 71 69 70 71 71 71 70 69 69 68 68 69 67 67 66 66 67 65 PWind dir E S SW W N SE S E NE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC FW FW FW FW SC FW FW SC SC SC SC B1 B1 SC SC B1 PoP 12hr 20 5 10 10 20 20 30 30 30 Rain shwrs S S S C C C Tstms S C S S $$ VAZ037-140800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 738 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 88 70 88 69 Temp 78 75 73 71 73 82 85 83 78 74 72 70 72 81 85 84 79 74 71 70 72 Dewpt 73 73 72 71 71 72 71 71 71 71 70 68 69 70 68 69 69 70 70 69 70 RH 85 94 97100 93 72 63 67 79 90 93 93 90 69 57 61 72 87 97 97 93 Wind dir SW SW W NW NW N NE NE NW NW N N N NE NE E E NE NE N NE Wind spd 4 2 1 1 1 2 2 3 2 1 1 2 2 4 5 5 3 2 1 1 2 Clouds B2 B1 SC B1 SC SC B1 B1 B1 B1 SC B1 FW FW B1 B1 FW SC SC SC SC PoP 12hr 30 50 30 30 20 QPF 12hr 0.04 0.03 0.02 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C C C C S S Tstms S S C S Obvis PF PF Heat index 87 90 88 85 88 88 Max heat 90 90 88 89 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 68 90 70 89 68 87 67 82 Temp 84 78 70 71 88 80 72 73 87 79 71 70 83 77 69 69 79 73 Dewpt 68 68 69 69 68 68 69 69 67 68 68 67 65 66 66 66 64 65 PWind dir E S SW W NE NE SE NE NE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 FW FW FW FW FW FW FW SC SC SC SC B1 B1 SC SC B1 PoP 12hr 30 5 10 10 20 20 30 30 40 Rain shwrs C S S C C C Tstms C S C S C $$ MDZ003-140800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 738 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 71 89 68 90 69 Temp 78 75 73 71 73 82 87 86 81 74 71 68 72 82 88 87 81 74 71 69 72 Dewpt 72 72 72 71 72 73 71 70 70 68 67 65 66 69 68 67 68 69 68 67 69 RH 82 90 97100 97 74 59 59 69 82 87 90 81 65 52 52 65 84 90 93 90 Wind dir SE W NW NW N N N N N N N N N NE NE E E E E E E Wind spd 3 3 2 2 3 4 5 5 3 2 3 3 4 3 4 4 4 2 2 2 2 Clouds B2 B2 B2 B1 B1 SC B1 SC SC SC FW FW FW FW SC SC FW FW SC SC SC PoP 12hr 40 30 10 10 10 QPF 12hr 0.05 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C Tstms C C Heat index 87 93 91 85 85 92 90 84 Max heat 84 93 93 92 92 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 68 93 70 91 67 89 65 83 Temp 86 81 71 72 90 83 73 72 88 80 70 70 86 77 68 67 79 73 Dewpt 69 68 68 69 70 69 68 67 67 65 64 65 66 65 63 63 64 62 PWind dir SE S W NW N E S E NE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC FW FW FW SC SC FW FW SC SC SC SC B1 B1 B1 B1 B1 PoP 12hr 20 5 20 20 20 20 30 30 30 Rain shwrs S S S S S C C S S C Tstms S S S S C S S $$ MDZ017-140800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 738 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 88 73 87 72 Temp 81 77 76 74 77 82 85 84 80 77 75 74 78 82 84 84 80 76 74 73 76 Dewpt 75 74 73 74 74 75 76 76 75 74 73 73 74 74 74 74 73 72 72 72 72 RH 82 90 90100 90 79 75 77 85 90 94 97 88 77 72 72 79 87 93 97 87 Wind dir S SW W W NW N N N N W NW N NE NE N NE E E E NE NE Wind spd 5 5 4 4 4 4 5 4 2 2 2 4 5 5 6 6 5 5 4 5 5 Clouds B1 B1 SC SC SC B1 SC SC SC SC SC SC SC SC SC SC FW FW FW SC SC PoP 12hr 50 30 20 30 5 QPF 12hr 0.03 0.07 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S S S S S C C Tstms C S S S S S S Heat index 87 89 94 93 85 88 91 91 84 Max heat 90 94 95 91 91 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 71 87 72 86 71 86 69 83 Temp 83 78 73 75 85 80 74 76 84 79 73 75 83 78 71 73 81 75 Dewpt 71 70 69 71 70 71 70 70 70 69 68 69 67 67 66 68 67 67 PWind dir E S S SW NE SE SE E NE Wind char LT LT LT LT LT LT GN LT GN Avg clouds FW FW CL CL CL FW FW FW FW FW FW FW FW SC SC SC SC SC PoP 12hr 10 5 5 10 20 10 20 20 20 Rain shwrs S S S S Tstms S S S $$ WVZ502-140800- Petersburg WV 38.99N 79.15W Elev. 963 ft 738 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 64 89 65 Temp 78 71 69 68 69 80 84 83 77 70 67 65 66 79 85 86 79 71 67 66 67 Dewpt 71 70 69 68 69 72 71 70 70 68 66 63 64 68 69 68 70 67 66 64 66 RH 79 97100100100 77 65 65 79 93 97 93 93 69 59 55 74 87 97 93 97 Wind dir NE SW W S SE N N N N NW W NW NW NE NE E E SE S SW S Wind spd 2 2 2 2 1 2 3 4 2 2 1 1 1 2 2 3 2 2 1 1 1 Clouds B2 B2 B1 B1 B2 SC B1 SC SC SC SC SC SC FW B1 B1 FW FW FW SC SC PoP 12hr 40 50 10 30 10 QPF 12hr 0.01 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S C S S S C C S Tstms S S S C S Obvis PF PF Heat index 84 89 87 89 89 Max heat 85 89 90 89 91 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 64 92 66 90 64 88 63 82 Temp 86 77 67 66 90 80 69 68 87 78 68 66 85 76 66 64 79 71 Dewpt 70 70 66 65 68 70 66 66 69 69 66 65 68 68 64 63 67 66 PWind dir SE SW NW W N S W SW N Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 FW FW FW SC FW SC SC B1 SC SC SC B1 B1 B1 B1 B1 PoP 12hr 30 5 20 10 30 20 40 30 50 Rain shwrs S C S C S S C C S C C Tstms C S C S C S C $$ MDZ014-140800- Annapolis MD 38.99N 76.49W Elev. 7 ft 738 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 86 75 85 73 Temp 79 78 76 76 77 81 83 83 81 79 77 75 77 81 83 84 81 77 75 73 75 Dewpt 74 75 75 74 74 74 74 73 73 75 73 73 72 72 72 71 72 73 72 72 72 RH 85 91 97 94 90 79 74 72 77 88 87 94 85 74 70 65 74 87 90 97 90 Wind dir W SW W NW NW N NE E NW N N N N NE NE E E E E E E Wind spd 8 3 2 2 3 4 5 4 2 1 2 3 5 6 8 6 5 4 2 3 4 Clouds B2 B2 B1 B1 SC SC B1 SC SC SC SC SC FW FW SC SC FW FW SC SC SC PoP 12hr 60 40 20 20 10 QPF 12hr 0.14 0.12 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C S C S S S S S Tstms C S C S S S Heat index 86 90 89 86 85 88 89 85 Max heat 89 90 90 84 88 90 84 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 72 87 73 85 72 84 70 80 Temp 82 80 75 75 84 81 76 76 83 80 74 75 81 78 72 72 78 75 Dewpt 70 69 71 70 70 70 71 69 69 68 70 69 67 67 68 67 65 65 PWind dir E S S W NE SE SE E NE Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC SC FW CL FW FW FW FW FW SC SC SC SC SC SC SC SC B1 PoP 12hr 20 5 10 20 20 20 20 30 30 Rain shwrs S S S S S C S C Tstms S S S S $$