Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
516 FOUS51 KLWX 182037 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 437 PM EDT Tue Jun 18 2024 VAZ054-190800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 437 PM EDT Tue Jun 18 2024 Date 06/18/24 Wed 06/19/24 Thu 06/20/24 Fri 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 90 71 92 73 Temp 91 85 79 74 72 76 84 89 89 84 79 76 73 76 86 90 91 88 81 78 73 77 Dewpt 66 63 63 64 65 65 64 61 62 61 63 65 66 66 65 64 64 64 65 66 66 67 RH 44 48 58 71 79 69 51 39 41 46 58 69 79 71 50 42 41 45 58 67 79 71 Wind dir SE SE SE S S S S SE SE SE SE S S S S S S S S S S SW Wind spd 12 12 10 8 8 6 6 9 10 10 9 8 6 6 6 8 8 9 9 8 8 5 Clouds FW FW FW FW SC SC SC SC SC FW SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 94 86 85 89 89 84 88 91 93 89 83 Max heat 96 83 89 90 83 91 93 87 Date 06/21 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 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 97 77 98 79 99 80 96 74 93 Temp 95 90 79 81 96 89 81 82 98 88 82 82 93 89 76 76 90 87 Dewpt 65 66 68 69 67 69 70 70 67 68 69 68 63 61 61 62 59 60 PWind dir S S S S SW SW W NW W Wind char LT LT LT LT GN GN GN GN LT Avg clouds SC SC FW FW FW SC SC SC SC B1 B1 B1 SC SC FW FW FW FW PoP 12hr 5 10 20 10 20 40 30 20 10 Rain shwrs S S C S C S Tstms S S C S C S $$ MDZ013-190800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 437 PM EDT Tue Jun 18 2024 Date 06/18/24 Wed 06/19/24 Thu 06/20/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 89 67 91 70 Temp 91 84 77 73 70 73 84 86 87 83 76 72 71 74 85 89 90 86 78 75 70 75 Dewpt 66 64 64 65 65 67 66 62 60 62 65 66 66 68 67 65 65 65 66 66 66 67 RH 44 51 64 76 84 81 55 45 40 49 69 81 84 82 55 45 44 50 67 74 87 76 Wind dir S S S S S S SE SE SE S S S S S S SE SE S S S SW SW Wind spd 12 10 8 5 4 4 8 10 10 8 6 5 4 4 8 9 10 8 6 5 4 2 Clouds FW FW FW FW B1 SC SC SC SC FW SC B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 94 85 86 86 87 84 88 91 92 88 Max heat 96 81 86 87 82 91 92 85 Date 06/21 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 95 72 96 75 98 76 95 69 92 Temp 93 88 75 77 94 86 77 79 97 87 78 78 93 85 72 73 88 85 Dewpt 67 68 69 70 69 70 71 71 69 70 70 69 65 63 62 62 61 61 PWind dir S S S S S SW W NW W Wind char LT LT LT LT GN LT GN LT LT Avg clouds SC SC SC FW SC SC SC SC SC B1 B2 B1 SC SC SC FW FW FW PoP 12hr 10 10 20 20 20 40 30 20 10 Rain shwrs S S S C S S C S Tstms S S S C S C S $$ MDZ011-190800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 437 PM EDT Tue Jun 18 2024 Date 06/18/24 Wed 06/19/24 Thu 06/20/24 Fri 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 73 92 74 94 76 Temp 94 87 81 76 75 77 86 90 90 84 80 77 75 77 87 92 93 87 82 79 76 79 Dewpt 65 63 63 65 65 65 64 60 59 60 64 65 66 65 65 63 62 63 65 65 66 66 RH 39 45 54 69 71 67 48 37 35 44 58 67 74 67 48 38 36 45 56 62 71 64 Wind dir S S S S S S SE SE SE S S S S S S S S S S S SW SW Wind spd 12 10 8 5 4 4 8 10 10 8 6 5 4 4 8 9 10 6 6 5 4 2 Clouds FW FW FW SC B1 SC SC SC FW FW SC B1 SC SC SC SC FW SC SC SC SC SC PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 97 88 82 87 90 84 82 89 93 94 88 84 Max heat 97 86 90 91 83 93 95 86 Date 06/21 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 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 98 79 99 80 101 81 97 74 95 Temp 96 89 81 81 96 87 81 83 97 90 83 83 94 87 76 77 91 87 Dewpt 65 67 69 69 68 68 70 69 67 67 69 67 62 61 60 60 58 60 PWind dir S S S S S SW W NW W Wind char LT LT LT LT GN LT GN LT LT Avg clouds SC SC SC SC SC SC SC SC SC B1 B2 B1 SC SC FW FW FW FW PoP 12hr 10 10 20 20 20 40 30 20 10 Rain shwrs S S S C S S C S Tstms S S S C S C S $$ WVZ052-190800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 437 PM EDT Tue Jun 18 2024 Date 06/18/24 Wed 06/19/24 Thu 06/20/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 89 63 91 65 Temp 91 86 77 73 67 71 81 86 88 84 74 70 67 72 82 89 90 87 78 73 66 72 Dewpt 69 68 64 61 61 63 65 63 61 62 61 62 61 64 65 64 63 65 64 64 64 66 RH 49 55 64 66 81 76 58 46 40 48 64 76 81 76 56 44 41 48 62 73 93 81 Wind dir S SE SE SE SE SE SE SE SE SE SE S S S S SE SE SE S S S N Wind spd 11 8 6 4 3 3 6 9 9 5 5 4 3 2 6 6 8 3 3 3 2 0 Clouds SC FW FW SC SC SC FW SC FW SC B1 SC SC SC SC SC SC SC SC FW SC SC PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF Heat index 96 89 83 87 88 85 84 90 91 89 Max heat 96 83 87 88 82 90 91 86 Heat Y Date 06/21 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 95 69 96 70 95 70 90 63 90 Temp 93 86 72 75 93 86 74 76 93 85 73 74 87 83 66 68 86 85 Dewpt 65 68 69 69 67 68 68 68 65 65 65 65 60 58 58 59 57 58 PWind dir SE S S S SW SW W NW W Wind char LT LT LT LT LT LT GN LT LT Avg clouds SC SC SC FW FW SC SC SC SC B1 B1 B1 SC FW FW FW FW FW PoP 12hr 10 10 20 10 30 40 30 10 10 Rain shwrs S C C S S C Tstms S C C S S $$ VAZ506-190800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 437 PM EDT Tue Jun 18 2024 Date 06/18/24 Wed 06/19/24 Thu 06/20/24 Fri 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 91 67 92 68 Temp 92 86 78 73 70 73 84 88 89 85 76 71 69 74 85 90 91 87 78 74 69 74 Dewpt 68 66 63 64 64 67 67 64 62 62 64 64 65 67 68 66 65 66 66 65 66 67 RH 46 51 60 73 81 81 57 45 41 46 66 79 87 79 57 45 42 50 67 74 90 79 Wind dir S SE SE S S S S SE S SE SE S S S S S S S S S S S Wind spd 11 10 8 5 5 5 8 9 10 6 6 5 4 4 6 6 8 5 5 5 4 2 Clouds FW CL FW FW SC SC FW FW SC FW SC SC SC SC SC SC SC SC SC 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 88 87 89 89 86 88 93 93 89 Max heat 98 84 89 90 84 93 94 86 Date 06/21 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 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 98 72 99 74 99 75 95 68 92 Temp 95 91 75 78 96 88 76 78 97 87 77 77 92 87 70 72 89 86 Dewpt 67 69 69 70 68 71 69 70 69 69 69 69 65 62 61 62 60 61 PWind dir S S S S SW SW W NW W Wind char LT LT LT LT LT LT GN LT LT Avg clouds SC SC SC FW FW SC SC SC SC B1 B1 B1 SC SC FW FW FW FW PoP 12hr 10 10 20 10 20 40 30 20 10 Rain shwrs S S C S S C S Tstms S S C S C S $$ VAZ037-190800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 437 PM EDT Tue Jun 18 2024 Date 06/18/24 Wed 06/19/24 Thu 06/20/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 91 67 92 68 Temp 92 88 79 75 70 73 84 89 91 86 77 74 71 74 85 91 91 87 79 75 69 74 Dewpt 67 67 63 62 61 63 64 62 62 62 62 62 62 64 65 64 63 65 64 63 63 64 RH 44 50 58 64 73 71 51 41 38 45 60 66 73 71 51 41 40 48 60 66 81 71 Wind dir SE SE SE SE SE S SE SE SE SE SE SE S S S SE S S S SW SW SW Wind spd 9 4 3 2 2 2 5 8 9 3 2 2 1 2 5 6 6 3 2 2 2 1 Clouds FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC FW SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 96 91 85 89 92 86 87 93 92 89 Max heat 97 86 89 92 84 93 93 86 Date 06/21 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 97 72 99 74 99 75 97 68 95 Temp 94 90 75 78 97 89 77 79 98 87 78 78 94 88 72 73 91 87 Dewpt 63 67 66 67 65 67 66 68 65 66 65 66 61 59 59 60 58 60 PWind dir S SW S S SW SW W NW SW Wind char LT LT LT LT LT LT GN LT LT Avg clouds FW SC FW FW FW SC SC SC SC B1 B1 SC SC SC FW FW FW FW PoP 12hr 5 5 20 5 20 30 30 20 10 Rain shwrs S S C S C S Tstms S S C S C S $$ MDZ003-190800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 437 PM EDT Tue Jun 18 2024 Date 06/18/24 Wed 06/19/24 Thu 06/20/24 Fri 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 90 66 92 68 Temp 94 90 80 74 70 73 84 89 89 86 76 71 68 72 83 90 92 88 79 75 68 74 Dewpt 70 69 66 62 61 65 67 65 63 63 62 63 63 66 67 66 64 66 66 66 65 68 RH 46 50 62 66 73 76 57 45 42 46 62 76 84 81 59 45 40 48 64 74 90 82 Wind dir S SE S S SE S S S S SE SE S S S S S S S S S S S Wind spd 11 8 8 5 5 4 6 10 10 5 5 4 4 3 6 8 8 4 4 4 3 1 Clouds FW FW FW SC SC FW SC SC FW SC SC SC SC SC SC SC SC SC SC FW SC SC PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 100 95 82 87 91 90 87 86 93 94 90 Max heat 100 87 91 91 84 93 94 87 Heat Y Date 06/21 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 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 71 97 72 96 72 91 64 91 Temp 94 89 74 76 94 86 75 77 95 86 74 75 90 82 67 70 87 84 Dewpt 68 70 70 72 70 71 70 71 68 66 67 67 62 59 60 61 58 60 PWind dir SW E S SE SW SW W NW W Wind char LT LT LT LT LT LT GN LT LT Avg clouds SC SC SC FW FW SC SC SC SC B1 B1 SC SC FW FW FW FW FW PoP 12hr 20 10 30 10 30 30 30 10 10 Rain shwrs S C C C S S C Tstms S C C C S S $$ MDZ017-190800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 437 PM EDT Tue Jun 18 2024 Date 06/18/24 Wed 06/19/24 Thu 06/20/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 86 70 87 70 Temp 88 84 77 75 74 77 83 85 85 81 77 74 73 77 84 86 86 82 77 75 70 75 Dewpt 66 66 66 66 66 67 67 64 65 66 66 67 66 68 67 66 66 66 66 67 66 67 RH 48 55 69 74 76 71 59 50 51 60 69 79 79 74 57 51 51 58 69 76 87 76 Wind dir SE SE S S S S SE SE SE SE S S S S S SE SE S S S SW SW Wind spd 14 13 12 9 6 5 9 10 12 11 10 8 5 4 8 9 11 11 11 9 8 5 Clouds FW FW FW FW SC SC FW SC SC FW SC SC SC SC SC SC SC SC FW SC FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 90 86 86 86 87 83 87 88 88 84 Max heat 90 86 87 88 89 82 Date 06/21 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 74 93 77 96 77 95 72 91 Temp 89 84 76 79 91 84 78 81 95 87 79 79 93 84 74 75 88 84 Dewpt 68 68 68 69 70 71 70 72 71 71 70 70 68 68 64 64 62 65 PWind dir S S S S S SW SW NW SW Wind char GN LT LT GN GN GN GN LT LT Avg clouds FW FW FW FW FW FW SC SC SC B1 B1 B1 SC SC SC FW FW FW PoP 12hr 0 5 10 10 20 30 30 30 10 Rain shwrs S C C C C Tstms S C C C C $$ WVZ502-190800- Petersburg WV 38.99N 79.15W Elev. 963 ft 437 PM EDT Tue Jun 18 2024 Date 06/18/24 Wed 06/19/24 Thu 06/20/24 Fri 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 65 91 64 93 66 Temp 92 87 77 73 69 72 85 90 91 84 74 69 68 71 85 91 92 85 75 71 66 71 Dewpt 69 69 68 66 64 65 67 64 64 65 64 62 61 64 66 65 65 68 66 65 63 67 RH 47 55 74 79 84 79 55 42 41 53 71 78 78 79 53 42 41 57 74 81 90 87 Wind dir SE SE S S S S E SE SE SE S S SW SW E E SE SE SW SW W W Wind spd 10 5 3 3 2 1 5 8 9 4 3 3 2 1 5 6 6 2 2 2 2 1 Clouds SC SC FW SC B1 SC SC SC SC SC SC SC SC B1 SC SC SC SC SC SC SC SC PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Obvis PF Heat index 97 91 88 91 93 86 87 93 94 88 Max heat 97 83 91 93 83 93 95 85 Heat Y Date 06/21 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 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 97 69 97 70 96 68 90 60 92 Temp 95 84 71 73 94 85 72 73 94 82 70 70 88 79 63 65 88 83 Dewpt 66 70 67 68 67 69 66 67 66 66 64 65 62 61 58 59 57 61 PWind dir NE SW SW SW SW SW W W W Wind char LT LT LT LT LT LT GN LT LT Avg clouds SC SC FW FW FW SC SC SC SC B1 B1 SC SC FW FW FW FW FW PoP 12hr 10 10 20 10 30 40 30 10 10 Rain shwrs S C C C S C Tstms S C C S S $$ MDZ014-190800- Annapolis MD 38.99N 76.49W Elev. 7 ft 437 PM EDT Tue Jun 18 2024 Date 06/18/24 Wed 06/19/24 Thu 06/20/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 86 70 87 73 Temp 85 81 78 75 73 77 81 83 84 81 76 74 73 76 82 85 86 82 77 75 73 76 Dewpt 67 66 67 67 67 67 67 65 64 66 67 67 67 68 68 68 66 67 68 67 67 68 RH 55 60 69 76 81 71 63 55 51 60 74 79 81 76 63 57 51 61 74 76 81 76 Wind dir S S S S S S S S S S S S S S S S S S S S SW SW Wind spd 13 12 11 8 6 5 8 10 11 10 10 6 5 5 8 9 11 9 10 8 6 3 Clouds FW CL FW FW B1 SC SC SC FW FW SC SC SC SC SC SC FW SC SC FW SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 88 83 83 85 85 83 85 88 88 85 Max heat 89 82 85 86 88 89 82 Date 06/21 Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 75 92 78 94 78 92 72 89 Temp 88 85 77 79 89 84 79 81 91 87 79 80 89 85 74 75 85 83 Dewpt 70 69 70 70 71 71 72 72 71 71 71 69 67 66 64 63 63 64 PWind dir S S S S S SW W NW SW Wind char LT LT LT LT GN GN GN LT LT Avg clouds SC SC FW FW FW SC SC SC SC B1 B1 B1 SC SC FW FW FW FW PoP 12hr 5 10 20 20 20 40 30 20 10 Rain shwrs S S S C S C S Tstms S S S C S C S $$