Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
787 FOUS51 KLWX 211137 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 737 AM EDT Fri Jun 21 2024 VAZ054-212000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 737 AM EDT Fri Jun 21 2024 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 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 77 100 81 99 Temp 77 87 93 95 90 83 80 78 81 91 97 98 93 87 85 83 84 92 96 97 91 Dewpt 66 65 64 63 66 67 67 66 67 67 67 67 68 68 68 68 70 70 68 68 69 RH 69 48 38 35 45 59 65 67 63 45 38 37 44 53 57 61 63 49 40 39 49 Wind dir S S S S S S S S SW S S S S S S SW SW SW SW SW SW Wind spd 5 6 8 10 11 10 9 8 6 6 8 10 10 9 10 10 9 10 12 12 10 Clouds FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC FW SC SC B1 B2 B2 PoP 12hr 0 0 20 10 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C L Tstms S S C C L Heat index 89 95 96 93 86 82 83 94101103 97 91 88 86 88 98101102 96 Max heat 95 98 89 83 101 105 95 88 101 105 Date Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 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 93 74 94 75 98 76 88 Temp 82 80 92 86 77 76 92 89 78 78 97 88 78 78 86 84 Dewpt 72 72 67 63 61 63 60 61 64 66 64 67 68 68 65 63 PWind dir SW W NW W S SW W NW Wind char GN GN GN LT LT GN LT LT Avg clouds B2 B1 B1 SC FW FW CL FW FW SC SC B1 B2 B2 B1 B1 PoP 12hr 60 40 5 5 10 30 40 30 Rain shwrs L C C C C C S C C Tstms L C S C C C S S C $$ MDZ013-212000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 737 AM EDT Fri Jun 21 2024 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 95 73 98 79 99 Temp 75 87 92 93 87 80 76 74 79 92 96 96 90 83 81 79 82 92 97 96 87 Dewpt 67 66 66 66 67 68 69 68 68 70 69 70 71 71 69 68 70 72 70 69 70 RH 76 50 43 41 52 67 79 82 69 49 42 43 54 67 67 69 67 52 42 42 57 Wind dir SW S S S S S S S SW SW SW S S S S SW SW SW SW SW SW Wind spd 3 4 6 9 6 5 3 2 3 5 8 8 6 6 5 5 5 8 10 10 6 Clouds FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC B1 B2 B2 PoP 12hr 0 5 20 20 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C L Tstms S S S S C C L Heat index 89 95 96 90 83 98102103 96 88 84 86100104102 92 Max heat 95 98 86 102 105 93 86 104 106 Excess Heat A A Date Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 94 70 93 72 98 73 87 Temp 79 78 93 86 74 74 91 87 74 77 96 85 75 75 85 82 Dewpt 72 72 68 64 61 63 62 63 64 68 66 69 69 69 67 64 PWind dir SW W NW W S SW W NW Wind char LT GN LT LT LT LT LT LT Avg clouds B2 B1 B1 SC FW FW FW FW SC SC SC B1 B2 B2 B1 B1 PoP 12hr 60 40 5 5 10 30 40 30 Rain shwrs L C C C C C S C C Tstms L C S C C C S S C $$ MDZ011-212000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 737 AM EDT Fri Jun 21 2024 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 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 75 98 80 99 Temp 76 88 92 93 88 81 78 76 81 92 96 96 90 84 82 81 84 93 97 96 88 Dewpt 66 64 65 65 65 68 67 67 67 67 67 67 69 71 69 68 68 69 68 67 69 RH 71 45 41 40 47 65 69 74 63 44 39 39 50 65 65 65 59 46 39 39 54 Wind dir SW S SE SE S S S S SW S S S S S S SW SW SW SW SW SW Wind spd 2 4 6 8 6 4 2 2 3 4 6 8 6 5 4 5 5 8 10 10 6 Clouds FW FW FW FW FW SC FW FW FW FW SC SC SC SC SC SC SC SC B1 B2 B2 PoP 12hr 0 5 20 20 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C L Tstms S S S S C C L Heat index 89 94 95 90 84 83 96100100 95 89 85 84 87 98102100 92 Max heat 94 98 87 83 100 103 93 87 102 104 Excess Heat A A Date Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 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 95 75 95 77 100 77 91 Temp 80 77 91 89 79 75 92 90 79 79 98 88 80 77 88 85 Dewpt 71 70 66 62 61 60 59 61 63 65 64 67 68 66 64 61 PWind dir SW W NW W S S W NW Wind char LT GN LT LT LT LT LT LT Avg clouds B2 B1 B1 SC FW FW FW FW SC SC SC B1 B2 B2 B1 B1 PoP 12hr 60 40 5 5 10 30 40 30 Rain shwrs L C C C C C S C C Tstms L C S C C C S S C $$ WVZ052-212000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 737 AM EDT Fri Jun 21 2024 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 94 70 96 72 94 Temp 73 85 90 92 87 79 74 71 78 89 94 94 88 80 76 74 79 89 92 92 84 Dewpt 66 67 65 64 67 68 67 66 68 69 66 66 69 70 69 68 69 68 66 66 66 RH 79 55 44 40 52 69 79 84 71 52 40 40 54 72 79 82 72 50 43 43 55 Wind dir S S S SE SE S S N W W SW SW S S SW SW SW W W W W Wind spd 1 1 4 4 3 2 2 0 1 3 4 5 4 3 3 3 3 9 11 10 8 Clouds FW FW FW FW SC SC FW FW FW FW SC SC B1 SC SC SC SC SC B1 B2 B2 PoP 12hr 20 10 30 20 30 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S S C C C Tstms S S C C S S C C C Heat index 88 92 94 90 94 97 97 92 83 93 95 95 86 Max heat 92 95 85 97 100 90 95 97 Excess Heat A A Date Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 90 64 89 65 93 67 84 Temp 74 74 88 84 67 70 87 84 69 72 92 81 70 72 82 79 Dewpt 68 68 62 59 59 60 57 59 61 63 64 66 66 65 61 59 PWind dir W W NW W SW SW W NW Wind char LT GN LT LT LT LT LT LT Avg clouds B2 SC SC FW FW CL FW FW SC SC SC B1 B2 B1 SC SC PoP 12hr 50 20 0 5 20 30 40 30 Rain shwrs C S S S S S C C S C C Tstms C S S S S S C C S S C $$ VAZ506-212000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 737 AM EDT Fri Jun 21 2024 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 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 73 99 77 98 Temp 75 87 92 94 90 81 78 75 79 92 97 97 92 85 81 79 82 92 96 95 87 Dewpt 67 68 66 65 68 68 67 66 68 71 70 70 71 71 69 68 70 72 70 70 70 RH 76 53 43 39 49 65 69 74 69 51 42 42 51 63 67 69 67 52 43 45 57 Wind dir S S SW S S S S S SW SW SW SW S S S S SW SW SW SW SW Wind spd 3 3 5 5 5 4 4 3 3 4 5 5 5 5 5 6 5 6 9 9 6 Clouds FW FW FW FW FW SC FW FW FW FW SC SC SC B1 SC FW SC SC B1 B2 B2 PoP 12hr 0 5 30 20 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C L Tstms C C S S C C L Heat index 91 95 97 94 84 99104104 99 90 84 86100103102 92 Max heat 95 98 89 104 107 96 86 103 105 Excess Heat A A Date Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 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 93 68 93 70 98 71 86 Temp 77 77 91 86 72 74 91 88 73 76 97 86 74 74 84 82 Dewpt 72 72 68 63 61 64 61 64 64 67 66 69 69 69 67 64 PWind dir SW W NW W S SW NW NW Wind char LT GN LT LT LT LT LT LT Avg clouds B2 B1 SC SC FW CL CL FW SC SC SC B1 B2 B1 B1 SC PoP 12hr 60 30 5 5 10 30 40 30 Rain shwrs L C C C C C S C C Tstms L C S C C C S S C $$ VAZ037-212000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 737 AM EDT Fri Jun 21 2024 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 96 72 99 76 98 Temp 75 88 93 95 88 81 77 73 78 92 96 97 90 84 80 77 79 91 96 95 88 Dewpt 65 66 65 64 65 65 64 64 66 67 66 66 66 67 65 66 68 69 67 67 68 RH 71 48 40 36 47 58 64 73 67 44 38 36 45 57 60 69 69 49 39 40 52 Wind dir S S S S S S S S SW S S S SW S SW SW SW SW SW SW SW Wind spd 2 3 5 5 5 3 3 3 3 4 5 8 5 5 6 5 5 8 10 9 6 Clouds FW CL FW FW FW FW FW CL CL FW SC SC SC SC FW FW FW SC B1 B1 B2 PoP 12hr 5 5 20 10 20 QPF 12hr 0 0 0.04 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C Tstms S S S S C Heat index 90 95 97 90 83 96100101 93 87 82 96100 99 92 Max heat 95 98 88 100 103 90 100 103 Excess Heat A A Date Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 95 67 94 70 98 72 89 Temp 80 77 93 88 72 72 92 89 74 75 97 88 77 73 86 83 Dewpt 68 70 65 61 60 62 59 62 61 63 63 66 67 67 65 63 PWind dir SW W NW W SW SW W N Wind char LT GN LT LT LT LT LT LT Avg clouds B1 SC SC FW FW CL FW FW FW SC SC B1 B1 B1 B1 B1 PoP 12hr 40 30 5 5 10 30 40 40 Rain shwrs C S S C C C S C C Tstms C S S C C C S S C $$ MDZ003-212000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 737 AM EDT Fri Jun 21 2024 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 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 72 97 75 96 Temp 76 87 92 93 88 81 77 73 79 90 95 95 90 82 79 76 81 91 94 93 85 Dewpt 66 69 66 66 70 70 69 68 71 72 69 69 70 72 71 69 72 71 68 68 68 RH 71 55 43 41 55 69 76 84 77 56 43 43 52 72 77 79 74 52 43 44 57 Wind dir S S SW W SE SE SE SE SW W SW SW S S S S SW SW W W W Wind spd 2 3 5 5 3 3 3 2 2 3 5 5 4 3 3 4 3 8 10 10 6 Wind gust 21 21 18 Clouds FW FW FW SC SC SC SC FW FW FW SC SC SC SC SC SC SC B1 B1 B2 B2 PoP 12hr 20 10 30 20 30 QPF 12hr 0.01 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S S C C C Tstms S S C C S S C C C Heat index 91 95 96 93 85 97101101 96 87 85 98 99 97 88 Max heat 95 97 90 102 103 93 85 99 101 Excess Heat A A Date Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 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 90 65 91 68 95 69 85 Temp 75 75 88 85 69 71 88 86 71 74 94 83 72 72 83 80 Dewpt 71 70 64 61 61 62 61 63 63 66 67 68 68 67 63 59 PWind dir W W NW W S SW W NW Wind char LT GN LT LT LT LT LT LT Avg clouds B2 SC SC FW FW CL FW FW SC SC SC B1 B2 B1 SC SC PoP 12hr 40 20 0 5 20 30 40 20 Rain shwrs C S S S S S C C S S S Tstms C S S S S S C C S S S $$ MDZ017-212000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 737 AM EDT Fri Jun 21 2024 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 74 95 79 97 Temp 77 85 89 89 83 78 75 74 80 89 93 93 86 82 81 79 83 91 95 95 87 Dewpt 67 68 69 69 70 69 69 68 71 71 70 70 71 71 69 69 73 73 71 71 72 RH 71 57 52 52 65 74 82 82 74 56 47 47 61 69 67 72 72 56 46 46 61 Wind dir SW S SE SE S S S SW SW S S S S S S SW SW SW S SW S Wind spd 6 6 11 11 10 9 6 6 8 8 11 11 11 11 11 11 10 11 11 12 10 Clouds FW FW FW FW FW FW FW CL FW FW FW FW FW FW FW FW FW FW SC B1 B2 PoP 12hr 0 0 5 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C Tstms S S C Heat index 88 94 94 87 83 95 99 99 91 86 84 89100103103 94 Max heat 94 96 84 83 99 102 89 89 103 105 Date Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 91 72 91 74 95 74 86 Temp 80 80 90 82 75 77 89 85 76 78 94 85 76 77 84 81 Dewpt 71 74 72 72 65 65 64 67 68 71 69 71 69 71 70 68 PWind dir SW SW NW W S S SW N Wind char GN GN GN LT LT GN LT LT Avg clouds B2 B2 B1 B1 FW FW CL FW FW SC FW SC B2 B2 B1 B1 PoP 12hr 50 50 10 0 10 20 40 40 Rain shwrs C C C C S C C C C Tstms C C C C S C C S C $$ WVZ502-212000- Petersburg WV 38.99N 79.15W Elev. 963 ft 737 AM EDT Fri Jun 21 2024 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 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 69 96 71 94 Temp 72 86 92 92 85 76 72 69 74 89 94 94 85 76 73 71 75 87 91 91 82 Dewpt 67 70 67 67 70 69 67 65 68 69 67 68 71 70 68 66 69 69 67 67 68 RH 84 59 44 44 61 79 84 87 82 52 41 43 63 82 84 84 82 55 45 45 63 Wind dir SW N NW N W SW S S SW SW W SW SW SW SW S SW W W W W Wind spd 1 1 2 3 2 2 2 2 1 2 3 4 2 2 2 2 3 6 10 10 5 Wind gust 17 Clouds FW FW SC SC SC SC FW FW FW FW SC SC B1 SC SC SC SC SC B1 B2 B2 PoP 12hr 40 10 20 20 40 QPF 12hr 0.06 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S S C C C Tstms C C S S S S C C C Heat index 91 96 96 90 94 98 99 90 91 94 94 85 Max heat 96 98 85 98 100 85 94 98 Excess Heat A A Date Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 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 88 61 92 65 93 66 85 Temp 72 70 86 81 65 66 89 85 68 71 91 83 68 68 83 78 Dewpt 68 68 64 62 61 62 60 64 61 64 67 70 67 66 64 61 PWind dir W W W W SW W W NW Wind char LT GN LT LT LT LT LT LT Avg clouds B1 B1 SC FW FW CL FW FW SC SC SC B1 B2 B1 SC SC PoP 12hr 50 20 0 5 20 40 50 30 Rain shwrs C C S S S S S C C C C C Tstms C C S S S S S C C S S C $$ MDZ014-212000- Annapolis MD 38.99N 76.49W Elev. 7 ft 737 AM EDT Fri Jun 21 2024 Date Fri 06/21/24 Sat 06/22/24 Sun 06/23/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 75 94 80 95 Temp 77 83 87 89 83 79 78 76 80 88 91 92 87 83 82 81 83 89 93 93 87 Dewpt 68 70 70 69 69 70 70 69 68 71 71 71 72 72 71 69 71 73 73 71 73 RH 74 65 57 52 63 74 76 79 67 57 52 51 61 70 69 67 67 59 52 49 63 Wind dir SW S S S S S S S SW S S S S S S S SW SW SW SW SW Wind spd 5 6 10 10 10 8 5 5 5 8 11 11 11 9 6 8 8 10 11 10 9 Clouds FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC FW SC SC B1 B2 B2 PoP 12hr 0 0 20 10 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C L Tstms S S C C L Heat index 87 92 94 87 83 94 98 99 94 88 86 84 88 97102100 94 Max heat 92 95 85 83 98 101 91 88 102 103 Excess Heat A A Date Mon 06/24/24 Tue 06/25/24 Wed 06/26/24 Thu 06/27/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 92 73 89 75 93 75 86 Temp 80 80 91 86 76 75 87 85 77 78 92 84 77 77 84 82 Dewpt 73 72 71 67 64 63 64 65 67 68 69 70 69 68 68 66 PWind dir SW W NW W S S W NW Wind char LT GN GN LT LT GN LT LT Avg clouds B2 B2 B1 SC FW CL CL FW FW SC SC SC B2 B2 B1 B1 PoP 12hr 60 40 5 5 10 30 40 30 Rain shwrs L C C C C C C C C Tstms L C S C C C C S C $$