Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
205 FOUS51 KLWX 220239 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 1038 PM EDT Fri Jun 21 2024 VAZ054-220800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 1038 PM EDT Fri Jun 21 2024 Date 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 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 76 100 81 98 79 Temp 82 79 77 80 93 99 99 93 87 83 81 83 93 98 96 92 86 81 79 81 Dewpt 68 68 68 68 69 69 70 70 70 68 68 70 70 68 68 69 71 72 72 70 RH 63 69 74 67 46 38 39 47 57 61 65 65 47 38 40 47 61 74 79 69 Wind dir S S S SW S S S S S S SW SW SW SW SW SW SW SW SW W Wind spd 10 9 8 9 8 9 13 12 9 10 11 10 11 13 13 10 9 10 9 9 Clouds FW FW FW CL CL FW SC SC SC SC FW FW SC B1 B2 B2 B2 B1 B1 SC PoP 12hr 0 10 5 30 60 QPF 12hr 0 0 0 0.01 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L C C C Tstms C C C C C C S Heat index 85 83 98106107 99 92 86 84 87 99104101 97 91 85 85 Max heat 87 83 106 107 97 87 104 104 96 85 Date 06/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 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 93 74 94 74 99 76 88 71 89 Temp 91 87 76 77 91 88 77 78 97 89 80 79 85 83 74 74 86 83 Dewpt 64 60 59 61 58 61 63 65 62 66 68 69 68 66 61 59 57 58 PWind dir W NW W S SW W NW N N Wind char GN GN LT LT GN LT LT GN GN Avg clouds SC FW FW FW FW FW FW SC SC SC B1 B2 B1 B1 SC FW FW FW PoP 12hr 30 5 5 10 30 50 40 20 10 Rain shwrs C C C C C C C S Tstms S C C C C S C S $$ MDZ013-220800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 1038 PM EDT Fri Jun 21 2024 Date 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 100 79 98 75 Temp 79 76 74 79 93 99 99 90 82 81 79 82 93 98 95 90 83 78 75 77 Dewpt 68 68 67 68 70 69 69 70 71 69 68 71 72 70 69 70 71 72 71 70 RH 69 76 79 69 47 38 38 52 69 67 69 69 51 41 43 52 67 82 87 79 Wind dir S S S SW SW SW S S S S SW SW SW SW SW SW SW SW SW W Wind spd 5 3 2 3 5 8 8 6 6 5 5 5 8 10 10 6 5 5 5 6 Clouds FW FW FW CL FW SC SC SC SC SC FW SC SC B1 B2 OV OV B2 B1 SC PoP 12hr 0 10 5 40 60 QPF 12hr 0 0 0 0.01 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L C C C Tstms C C C C C C S Heat index 99106106 96 86 84 86101105101 96 88 Max heat 84 106 107 93 86 105 103 92 Heat Y Y Y Date 06/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 92 71 92 72 98 73 87 68 87 Temp 89 86 73 74 89 87 74 76 96 87 76 76 85 82 71 71 84 82 Dewpt 64 61 60 61 60 62 63 66 64 67 68 70 68 67 61 59 58 58 PWind dir W NW W S SW W NW N NE Wind char GN LT LT LT LT LT LT LT LT Avg clouds SC FW FW FW FW FW SC SC SC SC B1 B2 B1 B1 SC FW FW FW PoP 12hr 30 5 5 10 30 50 40 20 10 Rain shwrs C C C C C C C S Tstms S C C C C S C S $$ MDZ011-220800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 1038 PM EDT Fri Jun 21 2024 Date 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 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 77 102 82 99 77 Temp 84 80 77 81 94101100 91 86 83 82 84 94 99 97 89 84 80 77 79 Dewpt 68 68 68 68 70 69 69 68 71 69 68 69 69 68 67 69 70 70 71 68 RH 59 67 74 65 46 36 37 47 61 63 63 61 44 37 38 52 63 72 82 69 Wind dir S S S SW S S S S S S SW SW SW SW SW SW SW SW SW W Wind spd 4 2 2 3 4 6 8 6 5 4 5 5 8 10 10 6 5 4 4 8 Clouds FW FW FW CL FW SC SC SC SC SC FW SC SC B1 B2 OV B2 B2 B1 SC PoP 12hr 0 20 5 40 60 QPF 12hr 0 0 0 0.01 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C L L C C C Tstms S C C C C C C S Heat index 87 83 84100108107 95 91 87 85 88 99105101 94 88 83 Max heat 88 84 108 109 94 88 105 104 91 Heat Y Y Y Date 06/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 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 93 74 95 76 98 77 88 71 89 Temp 89 85 76 77 91 88 78 79 95 86 80 79 86 82 74 73 86 83 Dewpt 63 60 59 59 58 61 62 65 63 66 67 68 66 65 60 58 56 56 PWind dir W NW W S SW W NW N NE Wind char GN LT LT LT LT LT LT LT LT Avg clouds SC FW FW FW FW FW SC SC SC SC B2 B2 B1 B1 SC FW FW FW PoP 12hr 30 5 5 20 30 50 40 20 10 Rain shwrs C C S C C C C C S Tstms S C S C C C S C S $$ WVZ052-220800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 1038 PM EDT Fri Jun 21 2024 Date 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 97 73 94 70 Temp 79 73 70 78 93 97 96 91 82 77 73 81 91 94 92 86 78 74 70 74 Dewpt 67 67 67 69 70 68 68 69 70 69 68 69 68 66 65 66 68 68 68 67 RH 67 81 90 74 47 39 40 49 67 76 84 67 47 40 41 51 71 82 93 79 Wind dir S S N W W SW SW S S SW SW SW W W W W SW SW W W Wind spd 2 2 0 1 3 4 5 4 3 3 3 3 9 11 10 8 5 5 5 8 Clouds FW FW CL CL FW SC SC B1 B1 SC SC SC SC B1 B2 B2 B1 SC SC SC PoP 12hr 5 20 5 30 50 QPF 12hr 0 0.01 0 0.01 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C S S S Tstms S S C C C C S S S Heat index 99102101 96 86 84 95 97 94 88 Max heat 82 103 102 93 84 97 96 87 Heat Y Y Y Date 06/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 65 90 66 95 69 85 62 85 Temp 86 84 69 70 87 85 70 72 92 86 72 73 82 80 67 67 82 80 Dewpt 60 58 58 60 57 61 61 63 62 65 66 67 63 61 56 56 54 56 PWind dir NW NW W SW SW W NW NW N Wind char GN LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW SC SC SC B1 B2 B1 B1 SC FW FW CL FW PoP 12hr 20 0 5 20 30 50 40 10 5 Rain shwrs S S S C C C C C Tstms S S S C C C C C $$ VAZ506-220800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 1038 PM EDT Fri Jun 21 2024 Date 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 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 73 100 77 97 73 Temp 81 77 73 79 94 99 99 93 85 81 77 81 94 97 95 89 80 76 73 76 Dewpt 69 67 66 68 70 69 69 70 71 68 68 70 72 70 70 71 72 72 72 70 RH 67 71 79 69 46 38 38 47 63 65 74 69 49 42 45 56 77 87 97 82 Wind dir S S S SW SW SW SW S S S S SW SW SW SW SW SW SW SW W Wind spd 4 4 3 3 4 5 5 5 5 5 6 5 6 9 9 6 5 5 4 6 Clouds FW FW CL CL CL SC SC SC SC SC FW FW SC B1 B2 B2 B2 B1 SC SC PoP 12hr 0 20 5 40 60 QPF 12hr 0 0 0 0.01 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C L L C C S Tstms S C C C C C C S Heat index 84 100106106 99 90 84 85102104102 95 84 Max heat 86 106 107 96 85 105 103 91 Heat Y Y Y Date 06/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 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 92 69 92 70 98 72 86 66 87 Temp 90 86 73 73 89 88 72 75 96 89 75 75 84 82 70 70 85 82 Dewpt 64 61 59 62 59 63 63 66 63 67 69 70 68 66 60 59 57 60 PWind dir NW NW W S SW W NW NW N Wind char GN LT LT LT LT LT LT LT LT Avg clouds SC FW FW FW FW FW SC SC SC SC B2 B1 B1 B1 SC FW FW FW PoP 12hr 30 5 5 10 30 50 40 10 10 Rain shwrs S C C C C C C Tstms S C C C C S C $$ VAZ037-220800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 1038 PM EDT Fri Jun 21 2024 Date 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 72 100 74 97 75 Temp 80 75 72 76 93 99 98 89 81 77 74 79 92 96 95 89 82 78 75 79 Dewpt 65 64 64 66 68 67 67 68 67 65 66 68 69 67 67 68 68 68 68 69 RH 60 69 76 71 44 36 37 50 63 67 76 69 47 39 40 50 63 71 79 72 Wind dir S S S SW S S S SW S SW SW SW SW SW SW SW SW SW SW W Wind spd 3 3 3 3 4 5 8 5 5 6 5 5 8 10 9 6 5 5 5 5 Clouds CL CL CL CL CL SC SC SC FW FW FW FW SC B1 B1 B2 B1 SC SC SC PoP 12hr 0 20 0 30 40 QPF 12hr 0 0 0 0.02 0.08 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C S S S Tstms S S C C C C S S S Heat index 82 97104103 93 83 97100 99 93 85 Max heat 84 104 105 89 101 101 89 Heat Y Y Y Date 06/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 94 68 94 70 99 72 87 66 89 Temp 91 86 72 74 92 87 73 76 97 88 75 75 85 81 70 71 86 83 Dewpt 63 59 59 61 58 62 61 63 61 65 66 68 67 65 62 58 57 60 PWind dir W NW W SW SW W NW N NE Wind char GN LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW FW FW SC SC B1 B1 B1 B1 SC FW FW FW PoP 12hr 20 5 5 10 30 40 40 10 10 Rain shwrs S S C C S C C Tstms S S C C S C $$ MDZ003-220800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 1038 PM EDT Fri Jun 21 2024 Date 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 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 99 75 95 71 Temp 80 76 72 79 92 98 98 91 83 78 75 80 91 94 93 87 78 75 71 74 Dewpt 69 68 67 70 72 69 69 70 71 71 69 72 71 68 68 68 70 71 69 68 RH 69 76 84 74 52 39 39 50 67 79 82 77 52 43 44 53 76 87 93 82 Wind dir SE SE SE SW W SW SW S S S S SW SW W W W SW SW W W Wind spd 3 3 2 2 3 5 5 4 3 3 4 3 8 10 10 6 5 5 5 8 Wind gust 21 21 18 16 Clouds SC FW FW CL FW FW SC SC SC SC SC SC B1 B1 B2 B2 B1 SC SC SC PoP 12hr 5 20 5 40 50 QPF 12hr 0 0.01 0 0.01 0.08 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C S S S Tstms S S C C C C S S Heat index 83 100104104 97 88 84 98 99 97 91 Max heat 84 104 106 93 84 99 100 87 Heat Y Y Y Date 06/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 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 89 66 91 68 96 70 86 62 85 Temp 86 83 68 71 88 86 72 74 94 87 73 74 84 81 66 66 82 80 Dewpt 62 59 59 61 59 63 62 65 65 66 68 68 64 61 58 57 56 57 PWind dir W NW W S SW W NW N N Wind char GN LT LT LT LT LT LT LT LT Avg clouds SC FW FW FW FW FW SC SC SC B1 B2 B1 B1 SC FW FW CL FW PoP 12hr 20 0 5 20 30 40 30 5 5 Rain shwrs S S S S C C C C C Tstms S S S S C C C S C $$ MDZ017-220800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 1038 PM EDT Fri Jun 21 2024 Date 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 99 79 95 77 Temp 78 76 74 81 91 97 97 89 82 80 79 83 91 94 95 87 82 78 77 80 Dewpt 69 70 69 71 71 70 71 72 71 70 70 73 73 72 71 72 71 71 72 73 RH 74 82 84 72 52 42 43 57 69 72 74 72 56 49 46 61 69 79 85 79 Wind dir S S SW SW S S S S S S SW SW SW S SW S SW SW SW SW Wind spd 9 6 6 8 8 11 11 11 11 11 11 10 11 11 12 10 10 9 9 10 Clouds FW FW CL FW CL FW FW FW FW FW FW FW FW SC B1 B2 B2 B2 B1 B1 PoP 12hr 0 5 0 20 60 QPF 12hr 0 0 0 0 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S L L C C C Tstms S C C C C C Heat index 85 98104105 96 86 83 89100102103 94 86 84 Max heat 85 104 108 92 89 102 103 91 84 Heat Y Y Y Date 06/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 73 91 74 95 75 86 71 86 Temp 89 83 75 78 88 85 75 79 93 85 77 79 84 81 73 74 84 80 Dewpt 70 70 64 64 63 66 67 69 68 70 69 71 71 70 67 64 62 62 PWind dir W NW W S S SW NW N NE Wind char GN GN LT LT GN GN LT LT GN Avg clouds SC SC FW FW FW FW FW FW FW SC B1 B1 B1 B1 B1 SC FW FW PoP 12hr 50 10 5 10 20 40 50 30 10 Rain shwrs C C S C C C C C Tstms C C S C C S C C $$ WVZ502-220800- Petersburg WV 38.99N 79.15W Elev. 963 ft 1038 PM EDT Fri Jun 21 2024 Date 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon 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 68 97 71 92 68 Temp 76 72 68 75 90 95 95 87 78 74 71 77 88 92 91 84 75 71 68 70 Dewpt 68 67 65 69 70 70 70 70 70 68 66 69 69 67 67 68 68 68 66 66 RH 76 84 90 82 52 45 45 57 76 82 84 76 54 44 45 59 79 90 93 87 Wind dir SW S S SW SW W SW SW SW SW S SW W W W W SW SW W W Wind spd 2 2 2 1 2 3 4 2 2 2 2 3 6 10 10 5 5 4 4 5 Wind gust 17 Clouds SC FW FW FW FW SC SC SC SC FW SC SC SC B1 B2 B2 B1 SC SC SC PoP 12hr 10 20 5 40 50 QPF 12hr 0 0 0 0.01 0.18 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C C C C C S Tstms S S C C C C C S Obvis PF Heat index 96102102 92 92 96 94 87 Max heat 102 104 88 96 96 84 Heat Y Y Y Date 06/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 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 87 62 91 66 95 67 85 59 86 Temp 85 80 65 66 88 84 68 71 94 83 70 70 84 79 63 63 83 78 Dewpt 61 61 60 61 59 64 60 63 64 69 67 67 66 64 58 57 56 60 PWind dir W W W SW W W NW NW N Wind char GN LT LT LT LT LT LT LT LT Avg clouds SC FW FW FW FW FW SC SC SC B1 B2 B1 B1 SC FW FW FW FW PoP 12hr 20 0 10 20 40 50 40 10 10 Rain shwrs S S S S S C C C C C Tstms S S S C C C S C $$ MDZ014-220800- Annapolis MD 38.99N 76.49W Elev. 7 ft 1038 PM EDT Fri Jun 21 2024 Date 06/21/24 Sat 06/22/24 Sun 06/23/24 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 75 95 80 94 77 Temp 79 77 75 80 90 94 94 88 83 83 80 84 90 93 93 87 82 78 77 79 Dewpt 70 70 69 70 71 71 71 72 72 71 70 71 73 73 71 73 73 73 72 71 RH 74 79 82 72 54 47 47 59 70 67 72 65 58 52 49 63 74 85 85 77 Wind dir S S S SW S S S S S S S SW SW SW SW SW SW SW SW W Wind spd 8 5 5 5 8 11 11 11 9 6 8 8 10 11 10 9 6 6 6 6 Clouds CL FW FW CL CL FW FW FW SC FW FW FW FW SC B1 B2 B2 B1 B1 SC PoP 12hr 0 10 5 30 70 QPF 12hr 0 0 0 0.01 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L C C C Tstms S C C C C C S Heat index 83 96101101 95 88 88 83 89 98102100 94 87 Max heat 85 83 101 103 92 89 102 102 92 Heat Y Y Y Date 06/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 73 90 75 93 75 86 71 85 Temp 88 85 75 76 87 85 77 78 91 85 77 78 84 81 73 73 82 81 Dewpt 67 65 62 62 62 64 66 67 67 69 69 69 69 69 65 61 61 62 PWind dir W NW SW S S SW NW N NE Wind char GN GN LT LT GN GN GN LT GN Avg clouds SC FW FW FW FW FW FW SC SC SC B1 B2 B1 B1 SC FW FW FW PoP 12hr 40 5 5 10 30 50 40 20 10 Rain shwrs C C C C C C C S Tstms S C S C C S C S $$