Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
354 FOUS51 KLWX 181737 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 136 PM EDT Tue Jun 18 2024 VAZ054-182000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 136 PM EDT Tue Jun 18 2024 Date Tue 06/18/24 Wed 06/19/24 Thu 06/20/24 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 72 90 73 92 Temp 90 91 85 79 74 72 76 84 89 89 84 79 76 73 76 86 90 91 88 Dewpt 67 66 63 63 64 65 65 64 61 62 61 63 65 66 66 65 64 64 64 RH 47 44 48 58 71 79 69 51 39 41 46 58 69 79 71 50 42 41 45 Wind dir S SE SE SE S S S S SE SE SE SE S S S S S S S Wind spd 11 12 12 10 8 8 6 6 9 10 10 9 8 6 6 6 8 8 9 Clouds FW FW FW FW FW SC SC FW FW FW FW FW SC SC FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 93 94 86 85 89 89 84 88 91 93 89 Max heat 94 95 83 89 90 83 91 93 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 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 96 76 97 77 97 78 93 Temp 78 79 95 90 79 80 95 89 81 80 94 89 81 80 90 85 Dewpt 66 67 65 66 68 68 68 67 70 71 68 69 70 71 66 66 PWind dir S S S S S S SW SW Wind char GN LT LT LT LT GN GN GN Avg clouds FW SC SC SC SC FW FW SC SC SC SC B1 B1 B1 SC SC PoP 12hr 0 5 10 20 20 20 30 40 Rain shwrs S S S C S S C Tstms S S S C S C $$ MDZ013-182000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 136 PM EDT Tue Jun 18 2024 Date Tue 06/18/24 Wed 06/19/24 Thu 06/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 68 89 71 91 Temp 90 91 84 77 73 70 73 84 86 87 83 76 72 71 74 85 89 90 86 Dewpt 69 66 64 64 65 65 67 66 62 60 62 65 66 66 68 67 65 65 65 RH 50 44 51 64 76 84 81 55 45 40 49 69 81 84 82 55 45 44 50 Wind dir SE S S S S S S SE SE SE S S S S S S SE SE S Wind spd 12 12 10 8 5 4 4 8 10 10 8 6 5 4 4 8 9 10 8 Clouds FW FW FW FW FW B1 SC FW FW FW FW FW SC SC SC FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 95 94 85 86 86 87 84 88 91 92 88 Max heat 95 96 81 86 87 82 91 92 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 95 72 95 74 95 76 93 Temp 75 77 94 88 75 78 93 86 75 78 92 85 78 78 90 83 Dewpt 66 67 67 68 69 70 70 68 70 72 70 71 70 71 68 68 PWind dir S S S S S S SW SW Wind char LT LT LT LT LT LT LT GN Avg clouds FW SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC PoP 12hr 0 10 10 20 20 20 30 40 Rain shwrs S S S C S S C Tstms S S S C S S C $$ MDZ011-182000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 136 PM EDT Tue Jun 18 2024 Date Tue 06/18/24 Wed 06/19/24 Thu 06/20/24 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 74 92 75 94 Temp 92 94 87 81 76 75 77 86 90 90 84 80 77 75 77 87 92 93 87 Dewpt 67 65 63 63 65 65 65 64 60 59 60 64 65 66 65 65 63 62 63 RH 44 39 45 54 69 71 67 48 37 35 44 58 67 74 67 48 38 36 45 Wind dir SE S S S S S S SE SE SE S S S S S S S S S Wind spd 12 12 10 8 5 4 4 8 10 10 8 6 5 4 4 8 9 10 6 Clouds FW FW FW FW SC B1 SC FW FW FW FW SC SC SC SC FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 96 97 88 82 87 90 84 82 89 93 94 88 Max heat 96 97 86 90 91 83 93 95 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 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 77 97 78 97 79 97 79 95 Temp 79 80 95 89 81 81 94 88 81 80 94 87 83 80 91 85 Dewpt 65 66 65 67 68 68 68 66 69 70 68 69 69 69 66 66 PWind dir S S S S S S SW SW Wind char LT LT LT LT LT LT LT GN Avg clouds FW SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC PoP 12hr 5 10 20 20 20 20 40 40 Rain shwrs S S S S C S S C Tstms S S S S C S S C $$ WVZ052-182000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 136 PM EDT Tue Jun 18 2024 Date Tue 06/18/24 Wed 06/19/24 Thu 06/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 65 89 67 91 Temp 90 91 86 77 73 67 71 81 86 88 84 74 70 67 72 82 89 90 87 Dewpt 70 69 68 64 61 61 63 65 63 61 62 61 62 61 64 65 64 63 65 RH 52 49 55 64 66 81 76 58 46 40 48 64 76 81 76 56 44 41 48 Wind dir SE S SE SE SE SE SE SE SE SE SE SE S S S S SE SE SE Wind spd 11 11 8 6 4 3 3 6 9 9 5 5 4 3 2 6 6 8 3 Clouds FW SC SC FW SC SC SC FW SC FW FW SC SC SC SC SC FW FW FW PoP 12hr 10 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF Heat index 96 96 89 83 87 88 85 84 90 91 89 Max heat 96 97 83 87 88 82 90 91 Heat Y Y Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 93 68 94 69 92 69 90 Temp 73 76 93 87 71 76 90 86 73 76 90 84 73 75 86 82 Dewpt 64 67 65 67 66 67 67 66 66 69 66 64 66 66 63 63 PWind dir S SE SW SW S S SW W Wind char LT LT LT LT LT LT LT GN Avg clouds FW SC SC SC SC FW FW SC SC SC SC B1 B1 B1 SC SC PoP 12hr 5 20 10 30 20 30 30 40 Rain shwrs S C S C C S S C Tstms S C S C C S S C $$ VAZ506-182000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 136 PM EDT Tue Jun 18 2024 Date Tue 06/18/24 Wed 06/19/24 Thu 06/20/24 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 68 91 69 92 Temp 92 92 86 78 73 70 73 84 88 89 85 76 71 69 74 85 90 91 87 Dewpt 70 68 66 63 64 64 67 67 64 62 62 64 64 65 67 68 66 65 66 RH 49 46 51 60 73 81 81 57 45 41 46 66 79 87 79 57 45 42 50 Wind dir S S SE SE S S S S SE S SE SE S S S S S S S Wind spd 11 11 10 8 5 5 5 8 9 10 6 6 5 4 4 6 6 8 5 Clouds FW FW FW FW FW SC SC FW FW SC FW SC SC SC FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 98 96 88 87 89 89 86 88 93 93 89 Max heat 98 98 84 89 90 84 93 94 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 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 72 97 72 98 74 97 74 93 Temp 74 76 95 90 75 78 95 89 76 79 94 87 78 78 90 84 Dewpt 65 67 68 68 68 70 70 68 69 71 70 68 69 71 68 67 PWind dir S S S S S S SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC FW FW SC SC SC SC B1 B1 B1 SC SC PoP 12hr 0 10 10 30 20 20 30 40 Rain shwrs C S S C S S C Tstms C S S C S C $$ VAZ037-182000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 136 PM EDT Tue Jun 18 2024 Date Tue 06/18/24 Wed 06/19/24 Thu 06/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 93 68 91 70 92 Temp 90 92 88 79 75 70 73 84 89 91 86 77 74 71 74 85 91 91 87 Dewpt 69 67 67 63 62 61 63 64 62 62 62 62 62 62 64 65 64 63 65 RH 50 44 50 58 64 73 71 51 41 38 45 60 66 73 71 51 41 40 48 Wind dir S SE SE SE SE SE S SE SE SE SE SE SE S S S SE S S Wind spd 9 9 4 3 2 2 2 5 8 9 3 2 2 1 2 5 6 6 3 Clouds SC FW FW FW FW SC FW FW SC FW SC SC FW SC FW FW FW FW FW PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 95 96 91 85 89 92 86 87 93 92 89 Max heat 95 97 86 89 92 84 93 93 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 96 71 99 73 97 74 94 Temp 75 75 94 89 76 77 95 89 77 77 94 87 78 78 91 84 Dewpt 63 65 64 67 64 66 66 65 65 68 65 65 66 68 64 64 PWind dir SW S SW S S SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC FW FW FW SC SC SC SC SC B1 B1 SC SC PoP 12hr 0 5 5 20 10 20 20 40 Rain shwrs S S S S C Tstms S S S C $$ MDZ003-182000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 136 PM EDT Tue Jun 18 2024 Date Tue 06/18/24 Wed 06/19/24 Thu 06/20/24 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 68 90 68 92 Temp 93 94 90 80 74 70 73 84 89 89 86 76 71 68 72 83 90 92 88 Dewpt 72 70 69 66 62 61 65 67 65 63 63 62 63 63 66 67 66 64 66 RH 51 46 50 62 66 73 76 57 45 42 46 62 76 84 81 59 45 40 48 Wind dir S S SE S S SE S S S S SE SE S S S S S S S Wind spd 11 11 8 8 5 5 4 6 10 10 5 5 4 4 3 6 8 8 4 Clouds FW FW SC FW SC SC FW FW FW FW FW SC SC SC SC SC SC FW FW PoP 12hr 10 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 101100 95 82 87 91 90 87 86 93 94 90 Max heat 101 100 87 91 91 84 93 94 Heat Y Y Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 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 95 71 95 71 94 71 91 Temp 75 76 94 86 75 78 93 87 75 77 92 86 76 77 87 83 Dewpt 66 68 68 70 68 69 70 69 68 71 69 65 67 68 66 65 PWind dir S SW SE SW SE S S W Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC SC FW FW SC SC SC SC B1 B1 B1 SC SC PoP 12hr 5 20 10 30 20 30 30 40 Rain shwrs S C S C C S S C Tstms S C S C C S S C $$ MDZ017-182000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 136 PM EDT Tue Jun 18 2024 Date Tue 06/18/24 Wed 06/19/24 Thu 06/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 72 86 73 87 Temp 86 88 84 77 75 74 77 83 85 85 81 77 74 73 77 84 86 86 82 Dewpt 68 66 66 66 66 66 67 67 64 65 66 66 67 66 68 67 66 66 66 RH 55 48 55 69 74 76 71 59 50 51 60 69 79 79 74 57 51 51 58 Wind dir SE SE SE S S S S SE SE SE SE S S S S S SE SE S Wind spd 13 14 13 12 9 6 5 9 10 12 11 10 8 5 4 8 9 11 11 Clouds FW FW FW FW FW SC SC FW FW FW FW FW SC SC FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 89 90 86 86 86 87 83 87 88 88 84 Max heat 89 90 86 87 88 89 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 91 73 93 75 94 77 93 Temp 75 79 90 84 75 79 90 84 77 80 91 86 78 80 89 82 Dewpt 67 68 68 68 68 70 71 70 71 72 71 71 70 72 71 69 PWind dir S S S S S S S S Wind char GN LT LT GN LT GN GN GN Avg clouds FW FW SC SC FW FW FW SC SC SC SC SC B1 B1 SC B1 PoP 12hr 0 0 5 10 10 20 30 40 Rain shwrs S C S C Tstms S C S C $$ WVZ502-182000- Petersburg WV 38.99N 79.15W Elev. 963 ft 136 PM EDT Tue Jun 18 2024 Date Tue 06/18/24 Wed 06/19/24 Thu 06/20/24 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 67 91 68 93 Temp 91 92 87 77 73 69 72 85 90 91 84 74 69 68 71 85 91 92 85 Dewpt 70 69 69 68 66 64 65 67 64 64 65 64 62 61 64 66 65 65 68 RH 50 47 55 74 79 84 79 55 42 41 53 71 78 78 79 53 42 41 57 Wind dir SE SE SE S S S S E SE SE SE S S SW SW E E SE SE Wind spd 9 10 5 3 3 2 1 5 8 9 4 3 3 2 1 5 6 6 2 Clouds SC SC SC SC FW B1 SC FW SC SC SC SC SC SC SC FW FW FW FW PoP 12hr 30 0 0 0 0 QPF 12hr 0.05 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C Tstms C C Obvis PF Heat index 97 97 91 88 91 93 86 87 93 94 88 Max heat 97 97 83 91 93 83 93 95 Heat Y Y Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 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 96 67 95 69 94 68 90 Temp 71 73 94 82 71 73 92 84 72 73 91 83 73 73 86 79 Dewpt 65 67 66 70 65 67 68 68 64 68 65 66 66 66 64 64 PWind dir SW NW SW W SW SW SW W Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC SC FW FW SC SC SC SC B1 B1 B1 SC SC PoP 12hr 5 20 10 30 20 30 40 50 Rain shwrs S C S C C C C C Tstms S C S C C S S C $$ MDZ014-182000- Annapolis MD 38.99N 76.49W Elev. 7 ft 136 PM EDT Tue Jun 18 2024 Date Tue 06/18/24 Wed 06/19/24 Thu 06/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 72 86 73 87 Temp 85 85 81 78 75 73 77 81 83 84 81 76 74 73 76 82 85 86 82 Dewpt 69 67 66 67 67 67 67 67 65 64 66 67 67 67 68 68 68 66 67 RH 59 55 60 69 76 81 71 63 55 51 60 74 79 81 76 63 57 51 61 Wind dir S S S S S S S S S S S S S S S S S S S Wind spd 12 13 12 11 8 6 5 8 10 11 10 10 6 5 5 8 9 11 9 Clouds FW FW FW FW FW SC SC FW FW FW FW FW SC SC FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 89 88 83 83 85 85 83 85 88 88 85 Max heat 89 89 82 85 86 88 89 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 90 75 91 76 91 77 90 Temp 75 78 88 85 77 79 88 84 77 79 88 84 79 79 87 82 Dewpt 67 68 70 69 70 70 72 70 72 72 73 72 71 71 70 69 PWind dir S S S S S S S SW Wind char GN LT LT LT LT GN GN GN Avg clouds FW FW SC SC SC FW FW SC SC SC SC SC B1 B1 SC SC PoP 12hr 0 5 10 20 20 20 30 40 Rain shwrs S S S C S S C Tstms S S S C S S C $$