Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
924 FOUS51 KLWX 200836 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 436 AM EDT Thu Jun 20 2024 VAZ054-202000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 436 AM EDT Thu Jun 20 2024 Date Thu 06/20/24 Fri 06/21/24 Sat 06/22/24 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 96 77 99 Temp 72 76 84 89 90 85 79 75 73 77 86 92 93 90 83 80 77 80 91 96 95 92 Dewpt 64 66 65 63 62 63 64 65 65 66 66 64 63 65 66 67 66 67 68 68 69 70 RH 76 71 53 42 39 48 60 71 76 69 51 40 37 44 57 65 69 65 47 40 43 49 Wind dir S S S S S S S S S SW S S S S S S S SW SW S S S Wind spd 3 4 5 6 9 9 8 5 5 5 6 8 9 9 8 8 6 8 6 6 9 10 Clouds SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW SC B1 SC PoP 12hr 0 0 0 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Tstms S S S Heat index 86 90 90 86 88 94 94 92 85 82 82 95101101 98 Max heat 90 91 84 94 94 90 82 101 102 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 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 81 100 80 94 74 93 74 97 Temp 84 83 99 90 84 80 91 87 76 76 91 88 76 76 94 90 Dewpt 70 69 66 70 69 70 67 64 63 62 60 62 65 67 64 64 PWind dir S SW SW W NW W S SW Wind char GN GN GN GN LT LT LT LT Avg clouds SC SC B1 B2 B2 B2 B1 SC FW FW FW FW SC SC SC SC PoP 12hr 20 20 50 40 10 5 10 10 Rain shwrs S S C C C C Tstms S S C C S C $$ MDZ013-202000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 436 AM EDT Thu Jun 20 2024 Date Thu 06/20/24 Fri 06/21/24 Sat 06/22/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 69 95 73 97 Temp 69 73 84 89 89 82 76 72 69 75 86 92 93 87 79 76 74 79 89 95 94 89 Dewpt 64 67 67 64 63 63 65 65 65 67 67 66 65 68 68 68 67 68 70 70 70 71 RH 84 81 57 44 42 53 69 79 87 76 53 43 40 53 69 76 79 69 54 45 46 56 Wind dir SW SW S SE SE S S S SW SW S S S S S S S SW S S S S Wind spd 2 3 5 6 8 6 5 4 3 3 4 8 9 8 5 4 3 3 4 6 9 8 Clouds SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW SC FW SC SC SC SC SC PoP 12hr 0 0 0 5 30 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S Tstms C C S Heat index 87 90 90 83 89 95 95 91 94102100 95 Max heat 90 90 95 95 87 102 102 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 99 76 94 70 92 72 96 Temp 80 82 98 87 79 78 93 85 73 74 90 86 73 75 93 89 Dewpt 72 70 68 70 70 72 68 65 64 63 62 63 65 67 66 66 PWind dir S SW SW W NW NE S SW Wind char LT GN LT GN LT LT LT LT Avg clouds SC SC B1 B2 B2 B2 B1 SC SC FW FW FW SC SC SC SC PoP 12hr 20 20 50 40 10 0 10 10 Rain shwrs S S C C C C Tstms S S C C S C $$ MDZ011-202000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 436 AM EDT Thu Jun 20 2024 Date Thu 06/20/24 Fri 06/21/24 Sat 06/22/24 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 75 98 79 100 Temp 72 76 87 90 91 86 81 78 75 77 89 93 95 90 84 81 79 81 92 96 97 92 Dewpt 64 65 64 62 60 61 64 65 65 65 65 64 64 65 68 67 67 67 68 68 67 69 RH 76 69 46 39 36 43 56 64 71 67 45 38 36 44 59 63 67 63 46 40 38 47 Wind dir S S S SE SE S S SW S SW S S S S S S S SW S S S S Wind spd 2 3 5 8 8 5 4 3 2 3 5 8 9 6 4 3 3 3 4 6 8 8 Clouds SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW SC FW SC SC SC SC SC PoP 12hr 0 0 0 5 30 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S Tstms C C S Heat index 88 90 91 86 83 91 95 97 92 87 83 83 96101101 97 Max heat 91 92 85 95 97 90 83 101 102 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 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 83 100 80 96 74 95 75 98 Temp 85 85 99 90 83 80 95 88 79 75 92 89 79 76 95 91 Dewpt 70 68 67 69 69 69 66 62 61 61 60 61 63 65 63 64 PWind dir S SW SW W NW NE S SW Wind char LT GN LT GN LT LT LT LT Avg clouds SC SC B1 B2 B2 B2 B1 SC FW FW FW FW SC SC SC SC PoP 12hr 20 20 60 40 5 0 10 10 Rain shwrs S S L C C C Tstms S S C C S C $$ WVZ052-202000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 436 AM EDT Thu Jun 20 2024 Date Thu 06/20/24 Fri 06/21/24 Sat 06/22/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 64 93 70 95 Temp 64 71 81 87 89 84 74 69 65 73 85 91 92 87 78 74 70 77 88 94 93 87 Dewpt 63 64 65 63 62 63 63 63 63 65 66 65 64 67 68 68 67 69 69 67 67 69 RH 97 79 58 45 41 49 69 81 93 76 53 42 40 52 71 82 90 76 54 41 43 55 Wind dir S S S S SE SE S S S S S S S SE S S SW W W W W S Wind spd 2 3 4 5 6 5 4 3 2 1 2 5 6 5 3 2 2 1 2 3 5 4 Clouds B1 SC B1 SC FW FW FW FW FW FW FW FW SC SC SC SC FW FW FW SC SC SC PoP 12hr 0 0 20 10 30 QPF 12hr 0 0 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S Tstms S S C C S Heat index 83 88 89 85 87 93 94 90 92 98 97 91 Max heat 88 89 93 94 87 98 98 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 96 71 88 64 89 64 92 Temp 75 79 95 87 75 76 86 81 67 70 87 83 67 71 90 86 Dewpt 69 68 64 65 65 67 63 59 59 59 57 59 60 63 59 63 PWind dir S W SW W NW NW S SW Wind char LT LT LT GN LT LT LT LT Avg clouds SC SC B1 B1 B1 B1 SC FW FW FW FW FW SC SC SC SC PoP 12hr 20 20 50 20 0 5 10 20 Rain shwrs S S C C S S S Tstms S S C C S S S $$ VAZ506-202000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 436 AM EDT Thu Jun 20 2024 Date Thu 06/20/24 Fri 06/21/24 Sat 06/22/24 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 91 68 96 73 99 Temp 68 73 84 89 90 85 77 72 69 75 87 93 94 90 81 77 74 79 91 97 96 91 Dewpt 62 66 67 66 65 65 66 65 65 67 68 66 66 67 67 67 66 69 72 71 70 72 RH 81 79 57 47 44 51 69 79 87 76 53 41 40 47 63 71 76 72 54 43 43 54 Wind dir S S S S S S S S S S S S S S S S S SW SW SW SW S Wind spd 3 4 4 5 6 6 5 5 4 3 4 5 6 6 4 4 3 3 3 4 5 4 Clouds B1 SC SC SC SC SC FW FW FW FW FW FW FW FW FW SC FW FW FW SC B1 SC PoP 12hr 0 0 5 5 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S Tstms C C S Heat index 87 92 92 87 91 96 97 93 83 99105103 99 Max heat 92 93 84 96 97 90 105 104 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 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 99 75 93 68 92 69 97 Temp 80 81 98 89 78 78 91 86 71 73 90 87 72 74 94 90 Dewpt 70 70 68 70 69 72 69 64 63 63 62 64 64 67 65 65 PWind dir S SW SW W NW NW S SW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC B1 B2 B2 B1 SC SC FW FW FW FW SC SC SC SC PoP 12hr 20 20 50 30 5 5 10 20 Rain shwrs S S C C C C S Tstms S S C C S C S $$ VAZ037-202000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 436 AM EDT Thu Jun 20 2024 Date Thu 06/20/24 Fri 06/21/24 Sat 06/22/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 68 96 72 99 Temp 68 72 84 89 90 85 77 73 69 73 87 92 94 89 80 77 74 77 91 96 95 90 Dewpt 63 64 65 63 63 63 63 62 62 64 65 64 64 65 65 64 64 67 68 66 67 69 RH 84 76 53 42 41 48 62 68 78 73 48 40 37 45 60 64 71 71 47 38 40 50 Wind dir NW W SE SE SE S S S S S S S S S S SW SW SW S S SW SW Wind spd 1 1 4 4 5 4 3 3 3 3 4 4 5 5 3 3 3 2 3 3 5 5 Clouds SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 5 5 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S Tstms C C S Heat index 86 90 91 86 89 94 96 91 82 95100 99 95 Max heat 90 91 83 94 96 88 100 100 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 98 75 95 68 93 69 97 Temp 80 79 97 89 79 77 94 87 73 71 91 87 73 73 95 90 Dewpt 67 68 65 67 66 68 65 62 61 61 58 62 61 63 61 63 PWind dir SW SW SW W NW E SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 B1 B1 SC SC FW FW FW FW FW FW SC B1 PoP 12hr 20 20 40 30 5 5 10 20 Rain shwrs S S C C S C S Tstms S S C C C S $$ MDZ003-202000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 436 AM EDT Thu Jun 20 2024 Date Thu 06/20/24 Fri 06/21/24 Sat 06/22/24 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 91 67 95 72 97 Temp 70 73 83 89 91 86 77 72 69 75 86 92 93 89 80 77 73 78 89 95 94 90 Dewpt 63 66 67 66 64 65 65 64 64 67 69 67 66 68 69 69 68 71 72 69 69 71 RH 78 79 59 47 41 50 67 76 84 76 57 44 41 50 69 76 84 79 57 43 44 54 Wind dir SE S S S S S S S S S S S S S S S S SW W W W SW Wind spd 3 3 4 6 5 4 5 4 3 2 3 5 5 4 3 3 3 2 3 5 5 3 Clouds SC SC SC SC FW FW FW FW FW FW FW FW SC SC SC SC SC SC FW SC SC SC PoP 12hr 0 0 20 20 30 QPF 12hr 0 0 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C S Tstms S S S S C C S Heat index 86 92 93 88 90 96 96 93 83 96101 99 96 Max heat 92 93 83 96 96 89 101 101 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 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 96 72 90 66 91 67 94 Temp 78 78 95 87 77 76 89 82 69 71 88 85 69 73 92 87 Dewpt 71 70 66 66 67 70 65 61 61 62 60 63 63 65 63 65 PWind dir S SW SW W NW NW S SW Wind char LT LT LT GN LT LT LT LT Avg clouds SC SC B1 B1 B1 B1 SC FW FW CL FW FW SC SC SC SC PoP 12hr 20 20 40 20 0 5 10 20 Rain shwrs S S C C S S S Tstms S S C C S S S $$ MDZ017-202000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 436 AM EDT Thu Jun 20 2024 Date Thu 06/20/24 Fri 06/21/24 Sat 06/22/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 70 90 74 94 Temp 69 76 82 84 85 80 76 73 71 76 86 88 88 82 78 75 74 79 88 92 91 85 Dewpt 66 68 67 66 65 66 66 67 66 67 69 68 68 68 68 67 67 69 70 71 70 72 RH 90 76 61 55 51 62 71 81 84 74 57 52 52 63 71 76 79 72 55 51 50 65 Wind dir S SW SE SE SE S S S SW SW S SE SE S S S S SW S S SE S Wind spd 4 4 6 11 11 10 9 6 8 8 6 10 12 12 9 8 8 6 6 10 12 12 Clouds FW FW FW FW FW SC FW FW FW FW FW FW CL FW CL FW FW FW CL FW SC SC PoP 12hr 0 0 0 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 85 86 87 82 90 92 92 85 93 99 97 91 Max heat 87 87 92 92 83 99 99 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 95 78 93 72 89 72 94 Temp 80 82 94 86 79 81 92 83 75 76 87 84 74 77 93 85 Dewpt 70 72 71 73 71 73 71 70 66 66 65 67 68 69 68 70 PWind dir S S SW SW NW NE S S Wind char GN GN GN GN LT LT LT GN Avg clouds SC SC SC B1 B2 B2 B1 B1 SC FW FW FW FW SC SC SC PoP 12hr 10 10 50 50 20 5 5 10 Rain shwrs C C C C S Tstms C C C S $$ WVZ502-202000- Petersburg WV 38.99N 79.15W Elev. 963 ft 436 AM EDT Thu Jun 20 2024 Date Thu 06/20/24 Fri 06/21/24 Sat 06/22/24 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 66 95 68 96 Temp 65 69 83 89 91 84 73 69 66 72 86 92 92 85 75 72 68 74 88 93 93 86 Dewpt 63 64 67 65 64 67 66 64 62 66 69 67 68 71 70 68 66 69 70 68 68 71 RH 93 84 59 45 41 57 79 84 87 81 57 44 46 63 84 87 93 84 55 44 44 61 Wind dir S S E E E SE S S S SW E N NW NW W W W W W W W SW Wind spd 2 1 2 2 3 3 2 3 3 1 1 2 2 2 2 3 2 2 2 3 4 3 Clouds B2 B1 SC B1 SC SC SC FW FW FW SC SC SC SC SC SC FW FW FW SC SC SC PoP 12hr 0 0 40 20 30 QPF 12hr 0 0 0.01 0.02 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C S Tstms C C S S C C S Heat index 86 91 93 87 90 96 96 90 93 97 97 91 Max heat 91 93 96 97 85 97 99 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 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 94 69 88 61 92 64 94 Temp 73 75 92 83 72 71 87 79 65 66 88 84 67 69 92 86 Dewpt 67 67 65 66 65 68 66 62 60 61 59 64 60 63 61 65 PWind dir SW SW SW W NW W SW W Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC B1 B2 B1 B1 SC FW FW FW FW FW SC SC SC SC PoP 12hr 20 30 60 30 0 5 10 20 Rain shwrs S C L C C C S Tstms S C C S S C S $$ MDZ014-202000- Annapolis MD 38.99N 76.49W Elev. 7 ft 436 AM EDT Thu Jun 20 2024 Date Thu 06/20/24 Fri 06/21/24 Sat 06/22/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 72 90 75 93 Temp 72 76 81 84 85 81 77 74 72 76 83 87 88 84 79 77 76 79 86 90 90 86 Dewpt 64 69 68 66 65 66 68 67 66 67 69 70 68 69 70 69 68 69 71 71 71 72 RH 76 79 65 55 51 60 74 79 81 74 63 57 52 61 74 76 76 72 61 54 54 63 Wind dir S S S S S S S S S SW S S S S S S S SW S S S S Wind spd 3 4 6 10 10 10 9 6 5 5 8 11 12 12 9 6 5 5 8 10 12 11 Clouds SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Tstms S S S Heat index 84 86 87 83 87 92 92 88 91 96 96 92 Max heat 86 87 92 92 86 96 96 Date Sun 06/23/24 Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 96 79 91 73 88 74 92 Temp 81 82 95 87 81 80 90 84 75 75 86 84 75 76 89 86 Dewpt 72 70 71 72 71 71 71 67 65 64 65 66 67 68 69 69 PWind dir S S SW W NW E S S Wind char GN GN GN GN LT LT LT GN Avg clouds SC SC B1 B1 B2 B1 B1 SC FW FW FW FW SC SC SC SC PoP 12hr 20 20 50 40 10 0 10 10 Rain shwrs S S C C C C Tstms S S C C S C $$