Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
697 FOUS51 KLWX 220538 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 137 AM EDT Sat Jun 22 2024 VAZ054-222000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 137 AM EDT Sat Jun 22 2024 Date Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 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 81 98 79 93 Temp 77 80 93 99 99 93 87 83 81 83 93 98 96 92 86 81 79 81 86 91 92 87 Dewpt 68 68 69 69 69 69 72 71 71 72 70 68 68 69 71 72 72 70 66 64 62 60 RH 74 67 46 38 38 46 61 67 72 70 47 38 40 47 61 74 79 69 51 41 37 40 Wind dir S SW SW S S S S S S SW SW SW SW SW SW SW SW W W W NW NW Wind spd 5 6 6 8 9 10 9 10 10 11 11 13 13 10 9 10 9 9 11 11 12 12 Clouds FW FW FW SC SC SC SC SC FW FW SC B1 B2 B2 B2 B2 B1 SC FW FW FW FW PoP 12hr 20 10 30 60 30 QPF 12hr 0 0 0.01 0.06 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C L L C C C C C C Tstms S C C C C C C S S S C Heat index 83 98106106 98 94 88 85 88 99104101 97 91 85 85 88 93 93 87 Max heat 83 106 107 98 88 104 104 96 85 93 93 Date Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 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 93 75 97 78 91 73 90 Temp 76 75 89 87 78 78 95 90 82 79 88 85 76 74 87 84 Dewpt 59 62 59 61 63 66 66 67 70 70 68 66 64 62 61 62 PWind dir NW W S S SW NW N NE Wind char GN LT LT GN LT LT LT LT Avg clouds FW FW CL FW FW SC SC SC B1 B1 B1 B1 SC FW FW FW PoP 12hr 5 0 5 20 50 30 10 10 Rain shwrs S C S C C Tstms S C S S C $$ MDZ013-222000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 137 AM EDT Sat Jun 22 2024 Date Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 100 79 98 75 92 Temp 75 79 93 99 99 90 82 81 79 82 93 98 95 90 83 78 75 77 84 89 91 86 Dewpt 68 69 70 69 70 71 72 71 70 71 72 70 69 70 71 72 71 70 67 64 62 61 RH 79 72 47 38 39 54 72 72 74 69 51 41 43 52 67 82 87 79 57 44 38 43 Wind dir SW SW SW SW S S S S SW SW SW SW SW SW SW SW SW W W W W NW Wind spd 3 3 5 5 9 5 5 5 6 8 8 10 10 6 5 5 5 6 9 12 12 10 Clouds FW FW FW SC B1 B1 B1 SC SC FW SC B1 B2 OV B2 B2 B1 SC FW FW FW FW PoP 12hr 20 20 40 60 30 QPF 12hr 0 0 0.01 0.06 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C L L C C C C C C Tstms S S C C C C C C S S S C Heat index 99106107 96 87 85 86101105101 96 88 87 90 92 86 Max heat 106 108 93 86 105 103 92 90 92 Heat Y Y Y Date Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 92 72 96 74 90 69 89 Temp 73 74 89 85 74 76 95 87 77 78 87 83 73 72 86 82 Dewpt 60 62 60 62 64 67 69 71 70 71 70 67 64 63 62 62 PWind dir NW W S S SW NW N E Wind char LT LT LT GN LT LT LT LT Avg clouds FW FW FW FW SC SC SC SC B2 B2 B1 B1 SC FW FW SC PoP 12hr 5 0 0 20 50 30 10 10 Rain shwrs S C S C C Tstms S C S S C $$ MDZ011-222000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 137 AM EDT Sat Jun 22 2024 Date Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 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 102 82 99 77 93 Temp 77 81 94101100 91 86 83 82 84 94 99 97 89 84 80 77 79 85 89 92 85 Dewpt 69 68 69 69 69 70 73 71 70 71 69 68 67 69 70 70 71 68 65 63 61 60 RH 76 65 44 36 37 50 65 67 67 65 44 37 38 52 63 72 82 69 51 42 36 43 Wind dir S SW SW S S S S S SW SW SW SW SW SW SW SW SW W W W W NW Wind spd 4 4 4 6 11 6 6 4 6 9 8 10 10 6 5 4 4 8 10 11 12 10 Clouds FW CL FW SC SC B1 B1 SC SC FW SC B1 B2 B2 B2 B2 SC SC FW FW FW FW PoP 12hr 20 20 40 60 30 QPF 12hr 0 0 0.01 0.06 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C L L C C C C C C Tstms S S S C C C C C C S S S C Heat index 84 99108107 97 93 88 86 89 99105101 94 88 83 87 90 92 85 Max heat 84 108 109 96 89 105 104 91 90 92 Heat Y Y Y Date Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 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 76 99 79 94 73 91 Temp 76 75 91 88 79 78 96 90 82 79 90 87 78 74 88 85 Dewpt 59 60 59 60 63 65 66 68 70 68 67 65 64 61 60 60 PWind dir NW W S S SW NW N E Wind char LT LT LT GN LT LT LT LT Avg clouds FW FW FW FW SC SC SC SC B2 B2 B1 SC SC FW FW SC PoP 12hr 5 0 5 20 50 30 10 10 Rain shwrs S C S C C Tstms S C S S C $$ WVZ052-222000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 137 AM EDT Sat Jun 22 2024 Date Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 97 73 94 70 89 Temp 71 78 93 97 96 91 82 77 73 81 91 94 92 86 78 74 70 74 81 86 87 84 Dewpt 68 70 69 68 68 69 71 70 68 70 68 66 65 66 68 68 68 67 64 60 58 58 RH 90 76 46 39 40 49 69 79 84 69 47 40 41 51 71 82 93 79 56 42 38 41 Wind dir SW SW W W S S S SW S SW W W W W SW SW W W W W NW NW Wind spd 1 1 3 4 6 4 2 3 4 5 9 11 10 8 5 5 5 8 11 13 13 10 Clouds CL CL FW SC SC B1 B1 SC SC SC SC B1 B2 B2 B1 SC SC FW FW FW FW FW PoP 12hr 30 20 30 50 20 QPF 12hr 0.01 0 0.01 0.06 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C C C S S S S Tstms C C S C C C C S S S S Heat index 98102101 96 86 85 95 97 94 88 83 86 84 Max heat 102 101 93 85 97 96 87 86 87 Heat Y Y Y Date Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 89 65 94 68 87 63 86 Temp 69 70 86 82 69 74 91 84 72 74 83 80 67 69 83 81 Dewpt 58 60 57 60 60 63 64 67 68 68 64 62 60 59 59 60 PWind dir NW W S SW W NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds FW CL CL FW SC SC SC B1 B2 B1 B1 SC FW FW FW FW PoP 12hr 0 0 5 30 50 30 5 5 Rain shwrs C C C C S Tstms C C C S S $$ VAZ506-222000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 137 AM EDT Sat Jun 22 2024 Date Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 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 77 97 73 92 Temp 74 79 94 99 99 93 85 81 77 81 94 97 95 89 80 76 73 76 85 90 91 86 Dewpt 67 68 70 70 69 70 72 71 70 70 72 70 70 71 72 72 72 70 67 64 62 61 RH 79 69 46 39 38 47 65 72 79 69 49 42 45 56 77 87 97 82 55 42 38 43 Wind dir S SW SW SW SW S S S S SW SW SW SW SW SW SW SW W W W NW NW Wind spd 3 3 3 5 6 5 4 6 6 8 6 9 9 6 5 5 4 6 9 11 11 9 Clouds CL CL FW SC SC SC SC SC FW SC SC B1 B2 B2 B2 B2 SC FW FW FW FW FW PoP 12hr 20 10 40 60 30 QPF 12hr 0 0 0.01 0.07 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C L L C C S S C C Tstms S S C C C C C C S S S C Heat index 100107106 99 91 85 85102104102 95 84 88 91 92 86 Max heat 107 107 96 85 105 103 91 91 92 Heat Y Y Y Date Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 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 69 91 70 98 72 89 67 89 Temp 73 72 88 85 73 76 96 88 76 77 85 83 72 71 86 83 Dewpt 59 63 61 63 63 67 68 69 70 71 71 68 64 63 63 64 PWind dir NW W S S SW NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds FW CL CL FW SC SC SC SC B1 B1 B1 SC FW FW FW FW PoP 12hr 5 0 5 30 50 40 10 10 Rain shwrs C C S C C Tstms C C S S C $$ VAZ037-222000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 137 AM EDT Sat Jun 22 2024 Date Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 100 74 97 75 94 Temp 73 76 93 99 98 89 81 77 74 79 92 96 95 89 82 78 75 79 88 91 92 86 Dewpt 65 66 68 66 65 65 68 67 69 69 69 67 67 68 68 68 68 69 66 63 60 59 RH 76 71 44 34 34 45 65 71 84 72 47 39 40 50 63 71 79 72 48 40 34 40 Wind dir S S S S S S SW S SW SW SW SW SW SW SW SW SW W W W NW NW Wind spd 3 3 5 8 9 6 5 5 5 6 8 10 9 6 5 5 5 5 8 9 9 8 Clouds CL CL CL SC SC SC SC FW FW FW SC B1 B1 B1 B1 B1 SC FW FW FW FW FW PoP 12hr 20 10 30 40 20 QPF 12hr 0 0 0.02 0.08 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C S S S S S S Tstms S S C C C C S S S S S S Heat index 97103101 91 84 97100 99 93 85 90 92 92 Max heat 103 104 89 101 101 89 92 93 Heat Y Y Y Date Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 93 70 99 73 92 70 91 Temp 72 72 90 87 74 74 96 90 79 76 88 85 74 72 88 84 Dewpt 59 61 59 61 61 64 64 65 66 68 67 66 64 63 61 63 PWind dir NW SE S SW SW N N NE Wind char LT LT LT LT LT LT LT LT Avg clouds FW CL CL FW FW FW FW SC B1 B1 B1 B1 SC FW FW SC PoP 12hr 5 0 5 30 40 40 10 10 Rain shwrs C C S C C Tstms C C S C $$ MDZ003-222000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 137 AM EDT Sat Jun 22 2024 Date Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 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 95 71 89 Temp 74 79 92 98 98 91 83 78 75 80 91 94 93 87 78 75 71 74 82 86 88 83 Dewpt 68 70 72 69 68 70 72 71 70 72 71 68 68 68 70 71 69 68 66 62 60 59 RH 82 74 52 39 38 50 70 79 84 77 52 43 44 53 76 87 93 82 58 45 39 44 Wind dir S SW W W S S SE S S S SW W W W SW SW W W W W NW NW Wind spd 2 3 4 5 5 5 3 3 4 5 8 10 10 6 5 5 5 8 11 13 12 9 Wind gust 21 21 18 16 Clouds CL CL FW SC SC B1 B1 SC SC SC B1 B2 B2 B2 B1 SC SC FW FW FW FW FW PoP 12hr 30 20 40 50 20 QPF 12hr 0 0 0.01 0.08 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C C C S S S S S S Tstms S C S C C C C S S S S S Heat index 100104104 97 88 84 98 99 97 91 84 86 88 83 Max heat 104 106 94 84 99 100 87 86 88 Heat Y Y Y Date Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 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 66 89 68 96 70 88 64 87 Temp 68 71 86 84 72 75 94 85 74 74 84 82 69 69 84 82 Dewpt 59 61 59 62 61 65 67 69 70 70 66 64 61 61 60 61 PWind dir NW W S SW SW NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds FW CL CL FW SC SC SC B1 B2 B1 SC FW FW FW FW FW PoP 12hr 0 0 5 40 50 30 5 5 Rain shwrs C C S C S Tstms C C S S S $$ MDZ017-222000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 137 AM EDT Sat Jun 22 2024 Date Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 99 79 95 77 90 Temp 75 81 91 97 97 89 82 80 79 83 91 94 95 87 82 78 77 80 87 89 88 83 Dewpt 69 70 70 70 70 73 73 71 71 73 73 72 71 72 71 71 72 73 72 70 70 70 RH 82 69 50 42 42 59 74 74 77 72 56 49 46 61 69 79 85 79 61 54 55 65 Wind dir SW SW SW S S S S S SW SW SW S SW S SW SW SW SW W W W W Wind spd 8 8 8 10 11 11 10 10 10 12 11 11 12 10 10 9 9 10 10 10 9 9 Clouds CL FW CL FW FW FW FW FW FW FW FW SC B1 B2 B2 B2 B2 B1 FW SC FW FW PoP 12hr 5 5 20 60 50 QPF 12hr 0 0 0 0.10 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S L L C C C C C C Tstms S C C C C C S C C Heat index 85 97104104 97 87 83 89100102103 94 86 84 94 94 93 87 Max heat 85 104 107 92 89 102 103 91 84 94 94 Heat Y Y Y Date Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 90 73 94 76 90 73 89 Temp 75 77 86 82 75 79 92 85 78 80 87 83 75 77 86 81 Dewpt 64 65 63 65 65 69 71 72 70 73 72 70 68 66 66 66 PWind dir NW NE S S S NW N NE Wind char GN LT LT GN GN LT LT GN Avg clouds FW FW CL FW FW FW FW SC B1 B1 B1 B1 SC FW FW FW PoP 12hr 10 0 0 20 40 40 20 10 Rain shwrs S C C C C S Tstms S C C S C S $$ WVZ502-222000- Petersburg WV 38.99N 79.15W Elev. 963 ft 137 AM EDT Sat Jun 22 2024 Date Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 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 71 92 68 87 Temp 69 75 90 95 95 87 78 74 71 77 88 92 91 84 75 71 68 70 79 85 86 80 Dewpt 67 69 69 68 69 72 71 68 67 69 69 67 67 68 68 68 66 66 65 61 60 61 RH 93 82 50 42 43 61 79 82 87 76 54 44 45 59 79 90 93 87 62 45 42 52 Wind dir SW SW NW NW SW SW SW SW SW SW W W W W SW SW W W W W NW NW Wind spd 2 1 2 2 5 3 2 3 3 4 6 10 10 5 5 4 4 5 9 11 10 6 Wind gust 17 Clouds FW FW FW SC SC B1 B1 SC SC SC SC B1 B2 B1 B1 B1 SC SC FW FW FW FW PoP 12hr 30 20 40 50 20 QPF 12hr 0.04 0 0.01 0.18 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C C C C C S S S S Tstms C C S C C C C C S S S S Heat index 95100101 94 92 96 94 87 85 86 81 Max heat 100 102 89 96 96 84 85 86 Heat Y Y Y Date Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 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 62 91 65 96 67 88 60 90 Temp 65 66 87 82 68 71 93 83 71 71 84 79 65 66 86 81 Dewpt 60 61 59 64 60 63 67 69 67 68 67 64 62 61 61 63 PWind dir W SW SW SW W NW NW E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC SC SC B1 B2 B2 B1 SC FW FW FW FW PoP 12hr 0 0 10 40 50 30 5 10 Rain shwrs C C C C C Tstms C C S S C $$ MDZ014-222000- Annapolis MD 38.99N 76.49W Elev. 7 ft 137 AM EDT Sat Jun 22 2024 Date Sat 06/22/24 Sun 06/23/24 Mon 06/24/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 95 80 94 77 91 Temp 75 80 90 94 94 88 83 83 80 84 90 93 93 87 82 78 77 79 85 88 90 85 Dewpt 70 70 71 71 72 72 74 72 72 72 73 73 71 73 73 73 72 71 69 67 66 65 RH 84 72 54 47 49 59 74 70 77 67 58 52 49 63 74 85 85 77 59 50 45 51 Wind dir S SW S S S S S S S SW SW SW SW SW SW SW SW W W W W NW Wind spd 5 6 6 10 11 10 9 8 9 9 10 11 10 9 6 6 6 6 10 11 11 10 Clouds CL CL CL FW SC SC SC SC FW FW SC B1 B1 B2 B2 B2 B1 SC FW FW FW FW PoP 12hr 10 10 30 70 40 QPF 12hr 0 0 0.01 0.07 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L C C C C C C Tstms S C C C C C S S S C Heat index 83 96101102 95 90 88 84 90 98102100 94 87 89 91 93 87 Max heat 83 101 104 94 90 102 102 92 91 93 Heat Y Y Y Date Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 Fri 06/28/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 89 75 93 77 89 73 87 Temp 75 75 85 84 77 78 90 85 79 79 85 83 76 75 83 81 Dewpt 62 63 63 65 67 68 71 72 71 71 71 69 67 64 64 65 PWind dir NW E S S SW NW N NE Wind char GN LT LT GN LT LT LT LT Avg clouds FW CL CL FW FW SC SC SC B1 B1 B1 SC SC FW FW FW PoP 12hr 5 0 5 20 50 40 10 10 Rain shwrs S C S C C Tstms S C S S C $$