Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
026 FOUS51 KLWX 230538 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 137 AM EDT Sun Jun 23 2024 VAZ054-232000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 137 AM EDT Sun Jun 23 2024 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 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 98 78 92 71 93 Temp 83 86 94 98 97 91 86 83 79 79 87 90 92 87 79 74 71 75 85 89 91 87 Dewpt 69 70 70 69 70 71 70 71 69 64 64 63 61 59 61 61 61 59 58 56 57 59 RH 63 59 46 39 42 52 59 67 72 60 46 41 36 39 54 64 71 58 40 33 32 39 Wind dir S SW SW SW SW SW SW SW W NW NW NW NW N N N N N W W S S Wind spd 10 12 14 17 17 14 11 11 10 13 12 12 13 12 9 8 6 6 5 5 6 9 Clouds FW SC B1 B2 B2 B2 B2 B2 SC FW FW SC SC FW FW FW CL CL CL FW FW FW PoP 12hr 40 50 30 5 0 QPF 12hr 0.06 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C S S Tstms C C C C C S S Heat index 87 91100104104 98 91 88 88 91 92 Max heat 91 104 104 96 86 91 93 84 87 90 Date Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 Sat 06/29/24 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 75 98 77 92 73 91 75 93 Temp 78 78 94 88 80 78 88 85 77 76 88 85 77 77 90 86 Dewpt 62 64 65 68 70 70 67 63 65 62 63 65 69 69 70 69 PWind dir S SW SW NW N E SE S Wind char GN GN LT LT LT GN LT GN Avg clouds SC SC SC SC B1 B2 B1 SC SC FW FW FW SC B1 SC SC PoP 12hr 5 30 60 30 10 10 20 20 Rain shwrs C L C S C S S Tstms C C C S S S $$ MDZ013-232000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 137 AM EDT Sun Jun 23 2024 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 99 75 90 68 92 Temp 81 83 95 99 96 91 83 80 77 76 84 90 89 84 77 71 68 73 83 89 90 85 Dewpt 68 70 70 69 69 70 70 71 69 65 64 63 60 59 60 61 60 60 59 58 57 59 RH 65 65 45 38 42 50 65 74 76 69 51 41 38 43 56 71 76 64 44 35 33 41 Wind dir SW SW SW SW SW SW SW SW W W NW NW NW N N N N N W S S S Wind spd 8 9 11 14 14 10 5 8 8 11 11 11 12 9 6 5 5 4 4 5 5 6 Clouds SC SC B1 B2 B2 B2 B2 B2 SC FW FW SC SC SC FW FW CL CL CL FW FW SC PoP 12hr 50 50 30 5 0 QPF 12hr 0.16 0.03 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S C C S S Tstms C C C C S S S Heat index 84 87102106102 97 87 83 85 91 89 84 83 85 Max heat 87 106 104 93 83 91 90 82 88 89 Heat Y Y Y Date Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 Sat 06/29/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 98 73 90 68 89 71 92 Temp 74 77 94 85 76 76 87 83 72 73 86 83 72 75 88 84 Dewpt 63 65 67 70 71 71 69 63 65 62 64 66 68 70 71 70 PWind dir S SW SW NW N E SE S Wind char LT GN LT LT LT LT LT LT Avg clouds SC SC SC B1 B2 B2 B1 SC FW FW FW SC SC B1 B1 SC PoP 12hr 5 30 60 30 5 10 10 20 Rain shwrs C L C S C S Tstms C C C S S S $$ MDZ011-232000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 137 AM EDT Sun Jun 23 2024 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 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 100 79 91 71 92 Temp 84 85 97100 98 91 88 83 81 79 87 90 90 84 80 74 71 75 87 91 92 87 Dewpt 68 68 69 67 69 69 70 70 68 63 63 62 59 59 60 61 60 57 56 56 55 57 RH 59 57 40 34 39 49 55 65 65 58 45 39 35 43 51 64 68 54 35 31 29 36 Wind dir S SW SW SW SW SW SW SW W W NW NW NW N N N N N W SW S S Wind spd 6 10 11 13 12 11 9 9 9 13 11 11 12 9 6 5 5 4 4 5 6 6 Clouds SC SC SC B2 B2 B2 B2 B2 SC FW FW SC SC FW FW FW CL CL CL FW FW SC PoP 12hr 50 50 30 5 0 QPF 12hr 0.18 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S C C S S Tstms C C C C S S S Heat index 87 88103105104 96 93 87 84 88 90 84 81 Max heat 88 106 105 96 87 91 92 83 89 90 Heat Y Y Y Date Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 Sat 06/29/24 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 99 77 93 73 92 75 95 Temp 79 79 95 87 81 79 90 86 77 76 89 84 77 76 90 86 Dewpt 62 63 65 67 70 69 67 61 62 60 62 64 67 68 69 68 PWind dir S SW SW NW N E SE S Wind char LT GN LT LT LT LT LT LT Avg clouds SC SC SC B1 B2 B2 B1 SC FW FW FW SC SC B1 B1 SC PoP 12hr 5 30 60 30 5 10 10 20 Rain shwrs C L C S C S Tstms C C C S S S $$ WVZ052-232000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 137 AM EDT Sun Jun 23 2024 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 94 68 86 62 90 Temp 74 82 91 94 91 86 77 74 69 74 81 86 85 81 71 66 62 69 80 86 88 83 Dewpt 67 68 68 68 66 68 67 67 64 62 62 60 58 59 58 59 59 57 57 55 54 57 RH 79 63 47 43 44 55 71 79 84 66 53 42 40 47 63 78 90 66 45 35 31 41 Wind dir SW SW SW SW W W SW W W NW NW NW NW NW NW NW NW NW W SW S SE Wind spd 3 5 11 14 14 11 9 8 8 12 12 13 12 10 6 4 3 3 4 5 5 5 Clouds B1 SC B1 B2 B2 B2 B1 SC FW CL FW FW SC FW FW FW CL CL FW CL FW SC PoP 12hr 30 40 20 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C S S Tstms S C C C Heat index 85 95 99 94 89 82 86 81 80 Max heat 85 99 97 84 86 85 84 86 Date Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 Sat 06/29/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 92 67 86 61 86 66 91 Temp 70 74 90 82 71 73 84 79 66 69 83 81 70 73 87 83 Dewpt 59 62 64 67 68 68 64 60 60 59 61 63 65 66 68 67 PWind dir S SW W N N E SE S Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 B2 B1 SC FW FW FW FW SC SC B1 B1 SC PoP 12hr 5 40 60 20 5 10 10 20 Rain shwrs C L C S S S Tstms C C C S S $$ VAZ506-232000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 137 AM EDT Sun Jun 23 2024 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 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 98 73 89 65 91 Temp 80 85 95 97 97 91 82 78 74 75 85 88 89 83 74 70 65 71 83 88 90 85 Dewpt 66 68 70 70 70 70 71 71 69 66 64 63 61 60 61 60 60 60 60 58 59 61 RH 62 57 45 42 42 50 69 79 84 74 50 43 39 46 64 71 84 68 46 36 35 45 Wind dir S SW SW SW SW SW SW SW W NW NW NW NW NW NW N N NW W W S S Wind spd 8 9 11 14 14 10 6 8 6 11 11 12 12 10 6 5 4 4 3 4 4 6 Clouds SC SC B1 B2 B2 B2 B2 B2 SC FW FW SC SC FW FW FW CL CL CL FW FW FW PoP 12hr 40 40 20 0 0 QPF 12hr 0.09 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S S S Tstms C C C C S S Heat index 82 88102104104 97 86 86 89 89 83 83 85 Max heat 88 105 105 92 89 89 81 87 89 Heat Y Y Y Date Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 Sat 06/29/24 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 98 72 89 67 91 70 94 Temp 73 76 94 86 75 75 86 83 72 72 87 84 73 75 90 86 Dewpt 62 64 67 69 70 71 70 65 65 63 66 67 68 70 72 70 PWind dir S SW W NW N E SE S Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 B2 B2 SC SC SC FW FW SC SC SC SC SC PoP 12hr 5 30 60 30 10 10 20 20 Rain shwrs C L S S C S S Tstms C C S S S S $$ VAZ037-232000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 137 AM EDT Sun Jun 23 2024 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 97 74 93 65 93 Temp 77 80 93 97 96 91 84 78 74 77 88 92 92 85 75 69 65 70 85 90 92 86 Dewpt 64 67 69 67 68 68 68 67 67 66 64 62 60 60 60 59 59 58 57 56 57 59 RH 64 65 46 38 40 47 59 69 79 69 45 37 34 43 60 70 81 66 39 32 31 40 Wind dir S SW SW SW SW SW SW SW W NW NW NW N N N NW NW N E S S S Wind spd 6 8 10 13 13 9 6 5 5 6 9 9 9 8 5 4 3 3 3 3 5 5 Clouds FW FW SC B2 B2 B1 B2 B1 SC CL FW FW FW FW CL CL CL CL CL FW FW FW PoP 12hr 30 40 20 0 0 QPF 12hr 0.02 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C S S Tstms C S S C S S Heat index 82 98101101 95 87 89 93 92 85 Max heat 82 101 102 91 93 94 82 88 91 Heat Y Y Y Date Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 Sat 06/29/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 98 72 93 68 92 71 95 Temp 74 74 94 88 77 75 89 84 73 73 88 85 75 73 91 87 Dewpt 60 62 64 64 67 69 68 65 65 64 64 65 67 68 69 68 PWind dir S SW W N N E SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC B1 B1 B1 SC SC FW FW SC SC SC SC SC PoP 12hr 5 30 50 40 10 20 20 20 Rain shwrs C C S S C S S S Tstms C C S C S S S $$ MDZ003-232000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 137 AM EDT Sun Jun 23 2024 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 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 70 86 62 90 Temp 78 82 91 93 93 86 79 77 71 74 80 85 85 81 71 66 62 69 81 86 88 84 Dewpt 69 69 71 68 66 69 69 69 64 63 62 61 58 59 59 59 59 59 58 57 57 60 RH 74 65 52 44 41 57 72 76 79 69 54 45 40 47 66 78 90 70 46 37 35 44 Wind dir S S SW SW SW W SW W W W NW NW NW NW NW N N NW W SW S SE Wind spd 4 5 11 17 14 11 9 6 8 12 12 12 11 9 5 4 3 3 4 5 5 5 Wind gust 25 Clouds B1 B1 B2 B2 B2 B2 B1 SC FW CL SC SC SC FW FW FW CL CL FW FW FW SC PoP 12hr 30 40 20 0 0 QPF 12hr 0.02 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C S S Tstms S C C C Heat index 85 98 97 96 90 81 85 81 81 84 Max heat 85 98 98 84 85 86 85 87 Heat Y Y Y Date Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 Sat 06/29/24 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 68 95 69 86 63 89 69 93 Temp 72 74 92 84 74 75 85 80 68 70 85 83 72 73 88 84 Dewpt 60 63 68 69 70 70 65 61 61 60 62 64 67 68 70 69 PWind dir S SW W NW N E SE S Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 B2 B1 SC FW FW FW FW SC SC SC B1 SC PoP 12hr 5 50 50 20 5 5 10 20 Rain shwrs C C S S S S Tstms C C S S $$ MDZ017-232000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 137 AM EDT Sun Jun 23 2024 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 99 77 89 71 90 Temp 82 86 95 99 98 92 86 82 78 79 85 88 89 82 78 74 71 77 84 86 88 82 Dewpt 71 73 73 71 71 72 71 72 72 71 70 68 67 66 65 64 63 62 61 60 61 63 RH 69 65 49 41 42 52 61 72 82 77 61 52 48 58 64 71 76 60 46 42 40 53 Wind dir SW SW SW SW SW SW SW SW SW W NW NW N N N N N N NE NE S S Wind spd 11 13 13 16 16 11 12 12 11 11 10 10 9 9 8 8 6 6 5 6 6 9 Clouds FW FW SC B2 B2 B2 B2 B1 B1 SC SC SC FW SC FW FW CL CL CL FW FW FW PoP 12hr 30 50 40 5 0 QPF 12hr 0.01 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C C Tstms C C C C C C C Heat index 86 93105108106100 91 87 90 92 92 84 84 86 88 83 Max heat 93 108 108 96 92 92 83 86 88 Heat Y Y Y Date Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 Sat 06/29/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 96 75 89 72 88 73 89 Temp 75 79 91 86 77 79 85 82 75 77 86 82 75 79 87 83 Dewpt 64 68 69 71 69 72 72 68 70 67 68 69 69 71 72 70 PWind dir S S SW N N E SE SE Wind char GN GN LT LT LT GN LT GN Avg clouds FW SC SC SC B1 B2 B1 B1 SC FW FW SC SC SC SC SC PoP 12hr 5 20 50 40 20 20 10 20 Rain shwrs S C C S C S S S Tstms S C C S C S S $$ WVZ502-232000- Petersburg WV 38.99N 79.15W Elev. 963 ft 137 AM EDT Sun Jun 23 2024 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 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 66 85 58 91 Temp 71 77 89 94 93 85 77 72 67 69 79 84 85 77 66 62 58 65 80 87 90 82 Dewpt 67 68 68 66 66 69 69 67 64 63 62 59 60 60 59 58 58 59 59 57 57 62 RH 87 74 50 40 41 59 76 84 90 81 56 43 43 56 78 87100 81 49 36 33 51 Wind dir S SW W W W SW SW SW W NW NW NW NW NW NW W W W S SW W SW Wind spd 3 4 10 12 11 6 5 5 4 6 9 10 11 6 3 3 2 2 3 4 4 3 Wind gust 21 Clouds SC B1 B2 B2 B2 B2 B2 SC SC SC SC SC SC FW FW CL FW FW CL FW FW FW PoP 12hr 40 50 20 5 0 QPF 12hr 0.01 0.04 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S Tstms C C C C Heat index 93 97 96 89 84 85 81 83 Max heat 97 97 83 84 85 86 89 Date Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 Sat 06/29/24 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 65 94 66 87 60 91 66 94 Temp 68 71 91 81 70 70 84 77 65 66 86 81 69 71 90 84 Dewpt 59 63 67 69 68 69 67 63 63 63 64 66 66 68 70 70 PWind dir SW SW W NW N SE S S Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 B2 B2 B1 FW FW SC FW SC SC SC SC SC PoP 12hr 10 50 60 30 5 10 10 30 Rain shwrs C L C S C C Tstms C C S S S C $$ MDZ014-232000- Annapolis MD 38.99N 76.49W Elev. 7 ft 137 AM EDT Sun Jun 23 2024 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 96 78 89 72 89 Temp 80 84 92 96 95 90 84 81 78 79 85 87 89 84 79 75 72 78 82 85 87 84 Dewpt 71 71 72 70 72 72 72 72 70 65 66 64 64 63 63 62 62 61 61 60 60 63 RH 74 65 52 43 48 56 67 74 76 62 53 46 44 49 58 64 71 56 49 43 40 49 Wind dir SW SW SW SW SW SW SW SW W W NW NW NW N N N N N E SE S S Wind spd 9 10 11 14 13 11 6 9 8 11 11 12 11 10 6 6 6 6 5 6 8 9 Clouds FW SC SC B2 B2 B2 B2 B2 B1 FW FW FW SC SC FW FW CL CL CL CL FW FW PoP 12hr 40 60 30 5 0 QPF 12hr 0.07 0.04 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L C C C C C Tstms C C L C C S S Heat index 83 89100103104 97 90 85 87 88 90 85 83 85 87 85 Max heat 89 103 104 94 89 90 83 85 87 Heat Y Y Y Date Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 Sat 06/29/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 94 75 88 72 87 74 89 Temp 77 79 90 85 79 78 85 83 75 75 84 82 75 77 85 83 Dewpt 66 66 69 71 71 71 70 66 67 64 66 67 69 70 72 71 PWind dir S S SW N N E SE S Wind char GN GN LT LT LT LT LT GN Avg clouds SC SC SC SC B1 B2 B1 SC FW FW FW FW SC B1 SC SC PoP 12hr 5 30 60 30 10 10 10 20 Rain shwrs C L C S C S Tstms C C C S S S $$