Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
639 FOUS51 KLWX 081249 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 849 AM EDT Mon Jul 8 2024 VAZ054-082000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 849 AM EDT Mon Jul 8 2024 Date Mon 07/08/24 Tue 07/09/24 Wed 07/10/24 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 79 97 80 96 Temp 93 98 98 91 85 83 80 81 89 95 96 91 85 83 81 81 89 94 93 89 Dewpt 70 70 70 72 73 73 74 74 74 71 72 73 74 75 75 75 75 74 73 74 RH 47 41 41 54 67 72 82 79 61 46 46 56 70 77 82 82 64 53 52 61 Wind dir SE S S S S S S S S S S S S S S S S S S S Wind spd 5 6 8 6 5 5 4 4 5 6 9 8 6 6 8 9 11 13 16 14 Clouds B1 B1 B1 B1 SC B1 SC SC SC B1 B1 B1 SC SC SC B1 SC B1 B1 B1 PoP 12hr 20 10 30 20 50 QPF 12hr 0.01 0 0.03 0.07 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S S S S C C C Tstms S S C C S S S C C C Heat index 99105105 99 92 89 84 86 98103105100 93 90 87 87 99105102 98 Max heat 87 105 105 94 86 103 105 96 89 105 103 Date Thu 07/11/24 Fri 07/12/24 Sat 07/13/24 Sun 07/14/24 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 80 93 77 87 76 90 76 94 Temp 83 80 90 89 81 77 85 84 78 77 88 86 78 78 92 90 Dewpt 73 74 73 73 72 71 71 70 72 71 70 72 72 71 68 69 PWind dir S S S S S SW SW SW Wind char GN GN GN GN LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC FW SC FW FW PoP 12hr 50 50 60 70 50 50 20 20 Rain shwrs C C C C L C L L C C C C S S S Tstms C C S C L C C C C C S C S S $$ MDZ013-082000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 849 AM EDT Mon Jul 8 2024 Date Mon 07/08/24 Tue 07/09/24 Wed 07/10/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 98 77 95 76 95 Temp 91 96 98 91 85 81 78 81 89 94 94 88 82 79 76 79 89 94 93 88 Dewpt 69 69 70 71 73 74 74 76 74 73 73 74 75 75 75 76 76 76 74 74 RH 49 42 41 52 67 79 88 85 61 51 51 63 79 88 97 91 66 56 54 63 Wind dir E SE SE SE S S S S S S S S S S S S S S S S Wind spd 4 6 8 6 4 3 3 3 5 6 9 6 5 4 4 5 9 12 16 13 Clouds SC SC SC SC SC B1 SC SC SC B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 PoP 12hr 20 10 30 20 50 QPF 12hr 0.01 0 0.03 0.05 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S S C C C C C Tstms S C C S S S C C C Heat index 96102105 97 92 86 87 98103103 97 89 100107103 97 Max heat 83 102 105 93 87 103 103 94 107 106 Heat Y Y Date Thu 07/11/24 Fri 07/12/24 Sat 07/13/24 Sun 07/14/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 92 75 86 73 90 73 94 Temp 81 79 90 87 77 77 85 83 75 75 88 85 76 77 92 89 Dewpt 74 75 75 75 74 74 74 73 73 74 74 73 73 73 70 71 PWind dir S S S S S S SW SW Wind char GN GN LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC FW FW SC PoP 12hr 50 50 60 70 50 50 20 20 Rain shwrs C C C C L C L L C C C C S S S Tstms C C S C L C C C C C S C S S $$ MDZ011-082000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 849 AM EDT Mon Jul 8 2024 Date Mon 07/08/24 Tue 07/09/24 Wed 07/10/24 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 80 96 80 97 Temp 92 97 98 91 87 84 82 82 91 94 95 90 85 83 81 80 90 94 94 89 Dewpt 69 68 68 70 71 73 74 74 73 72 72 73 75 75 75 75 75 74 73 74 RH 47 39 38 50 59 70 77 77 56 49 48 58 72 77 82 85 62 53 51 61 Wind dir E SE SE SE S S S S S SE SE S S S S S S S S S Wind spd 5 6 8 5 4 3 3 3 5 8 9 8 5 3 3 5 9 13 17 14 Clouds SC SC SC SC SC B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 10 30 20 50 QPF 12hr 0.01 0 0.02 0.03 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C S S C C C C C Tstms S S C C S S S C C C Heat index 97102104 96 93 90 88 88100102104 98 94 90 87 85101105103 98 Max heat 84 102 104 95 90 102 104 98 89 105 105 Heat Y Y Date Thu 07/11/24 Fri 07/12/24 Sat 07/13/24 Sun 07/14/24 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 94 78 89 77 92 77 95 Temp 83 79 91 89 82 78 88 86 80 77 89 88 81 78 93 91 Dewpt 73 74 73 73 72 71 71 70 72 71 70 71 71 71 68 69 PWind dir S S S S S S SW SW Wind char GN GN LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC FW FW FW PoP 12hr 50 60 60 70 50 60 30 30 Rain shwrs C C C L L C L L C C C L C S C Tstms C C C C L C C C C C S C C C $$ WVZ052-082000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 849 AM EDT Mon Jul 8 2024 Date Mon 07/08/24 Tue 07/09/24 Wed 07/10/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 95 71 96 72 95 Temp 88 95 95 90 78 74 71 76 88 95 94 87 78 75 72 78 87 93 92 87 Dewpt 67 67 68 70 70 70 70 72 72 68 69 71 72 72 71 72 72 71 70 71 RH 50 40 42 52 76 87 97 87 59 42 44 59 82 90 97 82 61 49 49 59 Wind dir SE S S S S S S S S S S S S S S S S S S S Wind spd 3 5 5 4 3 2 2 1 2 4 5 5 3 3 3 4 9 13 14 12 Clouds SC B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 SC SC SC B1 B1 B1 PoP 12hr 20 10 30 20 60 QPF 12hr 0.02 0 0 0 0.11 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S S C C L L L Tstms S S C C S S S C C L Obvis PF Heat index 91 99100 96 95100 99 93 94100 98 93 Max heat 99 101 87 100 100 90 100 100 Date Thu 07/11/24 Fri 07/12/24 Sat 07/13/24 Sun 07/14/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 89 69 84 68 89 68 92 Temp 77 77 87 83 71 73 82 81 70 73 87 85 70 74 90 87 Dewpt 71 71 69 68 69 68 67 68 68 68 65 66 68 68 63 66 PWind dir S SW W SE S W SW W Wind char GN GN LT LT LT LT LT LT Avg clouds B1 B1 SC SC B1 B1 B1 B1 B1 SC SC FW FW FW FW FW PoP 12hr 70 50 50 60 40 50 10 20 Rain shwrs L C C C C C C L C S C C S S Tstms L C S S S S S C C S C S $$ VAZ506-082000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 849 AM EDT Mon Jul 8 2024 Date Mon 07/08/24 Tue 07/09/24 Wed 07/10/24 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 76 96 76 96 Temp 93 96 97 91 83 80 78 79 91 95 95 89 83 79 76 80 89 94 93 88 Dewpt 68 69 70 71 72 74 73 75 74 72 72 74 74 75 74 76 76 75 74 73 RH 44 42 42 52 70 82 85 88 58 48 48 61 74 88 94 88 66 54 54 61 Wind dir SE S S S S S S S S S S S S S S S S S S S Wind spd 3 5 6 6 4 3 3 3 4 5 6 6 5 4 5 6 10 12 13 12 Clouds SC B1 B1 B1 SC B1 SC SC SC B1 B1 B1 B1 SC SC B1 SC B1 B1 B1 PoP 12hr 20 10 30 20 50 QPF 12hr 0.01 0 0.01 0.01 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S S C C C C C Tstms S S C C S S S C C C Heat index 97102104 98 88 84 101104104 98 90 86100106103 96 Max heat 82 102 104 94 104 105 97 86 106 105 Heat Y Y Date Thu 07/11/24 Fri 07/12/24 Sat 07/13/24 Sun 07/14/24 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 74 84 72 90 71 93 Temp 80 79 90 87 76 76 83 82 74 74 88 86 74 76 92 89 Dewpt 73 75 75 73 72 73 74 73 72 73 73 73 73 73 69 71 PWind dir S S SW S S SW SW SW Wind char GN GN LT LT LT LT LT LT Avg clouds B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC FW FW FW SC PoP 12hr 50 60 60 70 50 50 20 30 Rain shwrs C C C L L C L L C S C C S S C Tstms C C S C C C C C C S C S C $$ VAZ037-082000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 849 AM EDT Mon Jul 8 2024 Date Mon 07/08/24 Tue 07/09/24 Wed 07/10/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 95 75 95 76 94 Temp 89 95 95 88 80 78 76 78 90 95 94 87 82 79 77 79 86 92 91 86 Dewpt 70 72 72 72 72 72 71 73 73 71 72 73 73 72 73 74 74 73 72 71 RH 54 48 48 59 77 82 85 85 58 46 49 63 74 79 87 85 68 54 54 61 Wind dir E SE SE W S SW SW S S S S S S S S S S S S S Wind spd 3 4 5 4 2 2 1 2 3 5 6 4 4 4 4 5 8 11 12 10 Clouds B1 B1 SC B1 SC SC SC SC SC B1 B1 B1 SC SC SC SC SC B1 SC B1 PoP 12hr 40 20 30 20 60 QPF 12hr 0.05 0 0.17 0.04 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S C C S S C C L L C Tstms S C C S C C S S S C L C Heat index 94104104 95 84 98103102 94 87 94101 99 91 Max heat 104 105 88 103 103 93 101 100 Date Thu 07/11/24 Fri 07/12/24 Sat 07/13/24 Sun 07/14/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 92 72 83 70 90 70 93 Temp 77 74 88 86 76 72 82 81 73 71 87 85 74 73 92 87 Dewpt 71 71 70 69 69 70 69 69 70 70 69 70 69 69 65 68 PWind dir S S S SE S SW SW SW Wind char GN LT LT LT LT LT LT LT Avg clouds B1 B1 B1 SC B1 B1 B1 B1 B1 B1 SC SC SC FW FW FW PoP 12hr 50 50 50 70 40 60 10 30 Rain shwrs C C C C C C C L C S C L S C Tstms C C S C C C C C C S C C $$ MDZ003-082000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 849 AM EDT Mon Jul 8 2024 Date Mon 07/08/24 Tue 07/09/24 Wed 07/10/24 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 73 95 74 95 Temp 90 95 95 90 81 78 75 77 86 94 95 90 80 77 75 78 87 93 90 85 Dewpt 67 67 67 69 71 72 71 73 73 69 69 71 73 72 72 74 75 73 72 72 RH 47 40 40 50 72 82 87 87 65 44 43 54 79 85 90 88 68 52 56 65 Wind dir S S S S S S S S SW S S S SE SE S S S S S S Wind spd 3 5 5 4 4 3 2 2 3 5 5 4 4 3 3 4 8 11 13 11 Clouds SC SC B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B1 B1 B1 PoP 12hr 20 10 30 20 70 QPF 12hr 0.01 0 0 0 0.14 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S S C C L L L Tstms S S C C S S S C C L Heat index 93 99 99 95 85 93 99101 96 84 96102 97 91 Max heat 99 100 90 99 101 94 102 101 Date Thu 07/11/24 Fri 07/12/24 Sat 07/13/24 Sun 07/14/24 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 89 72 85 71 90 70 94 Temp 78 77 87 84 74 74 83 82 73 73 88 86 73 75 92 88 Dewpt 72 74 73 71 71 70 71 70 71 71 69 70 70 70 67 68 PWind dir S SW W S S SW SW W Wind char GN GN LT LT LT LT LT LT Avg clouds B2 B1 B1 SC B1 B1 B1 B1 B1 SC SC FW FW FW FW FW PoP 12hr 70 60 40 60 40 50 10 20 Rain shwrs L C C L C C C L C S C C S Tstms L C S S S S S C C S S S $$ MDZ017-082000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 849 AM EDT Mon Jul 8 2024 Date Mon 07/08/24 Tue 07/09/24 Wed 07/10/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 93 77 90 77 92 Temp 91 93 92 86 81 80 77 81 87 89 89 84 80 78 77 81 88 90 90 85 Dewpt 74 74 75 74 75 75 75 76 75 75 75 75 76 75 75 75 76 77 75 75 RH 58 54 58 68 82 85 94 85 68 64 64 74 88 91 94 82 68 66 62 72 Wind dir SE SE SE SE S S S S S SE SE S S S S S S S S S Wind spd 4 6 8 6 5 4 4 5 6 11 11 11 8 8 8 9 11 16 18 16 Clouds SC SC SC B1 SC B1 SC SC B1 SC SC B1 SC SC SC B1 SC SC SC SC PoP 12hr 20 10 20 20 30 QPF 12hr 0.03 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S S S S S C C C Tstms S S S S S S S S S C C Heat index 100103103 94 87 85 87 96 99 99 92 86 87 99103101 94 Max heat 89 103 105 90 87 99 99 90 87 103 103 Heat Y Y Date Thu 07/11/24 Fri 07/12/24 Sat 07/13/24 Sun 07/14/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 91 77 87 75 90 75 92 Temp 80 81 89 86 79 80 87 82 77 78 88 84 77 79 90 86 Dewpt 74 76 76 76 74 75 75 74 73 74 75 74 73 74 73 73 PWind dir S S S S S S SW S Wind char GN GN GN GN LT LT LT LT Avg clouds SC SC SC SC SC B1 B1 B1 B1 B1 SC SC FW SC FW FW PoP 12hr 30 50 50 70 40 60 30 30 Rain shwrs C C C C C C L L C C C L C S S C Tstms C C C C C C C C C C S C C S C $$ WVZ502-082000- Petersburg WV 38.99N 79.15W Elev. 963 ft 849 AM EDT Mon Jul 8 2024 Date Mon 07/08/24 Tue 07/09/24 Wed 07/10/24 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 69 94 70 94 Temp 87 93 94 87 76 73 70 74 89 93 91 83 76 72 70 75 87 92 91 84 Dewpt 68 68 69 71 71 69 67 69 69 68 70 70 71 68 68 70 71 71 71 71 RH 53 44 44 59 85 87 90 84 52 44 50 65 85 87 93 84 59 51 52 65 Wind dir E SE S SW SW S SW W W S S S SW S S S S S S S Wind spd 1 3 3 2 2 2 2 1 1 3 4 3 2 3 3 2 5 8 11 9 Clouds SC B1 B1 B1 SC B1 SC SC SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 PoP 12hr 30 20 30 20 70 QPF 12hr 0.04 0 0 0 0.25 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C S S S S C C L L L Tstms C C S C C S S S S C L L L Heat index 91 97 99 92 94 97 97 87 93 99 98 89 Max heat 97 101 83 97 97 83 99 99 Date Thu 07/11/24 Fri 07/12/24 Sat 07/13/24 Sun 07/14/24 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 89 65 87 65 91 65 94 Temp 73 72 87 82 67 69 85 80 67 69 89 84 68 70 92 85 Dewpt 68 69 69 69 67 67 67 69 67 67 65 67 65 65 64 67 PWind dir SW W W SE SW NW W W Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC SC SC SC SC B1 SC SC FW FW FW FW FW FW PoP 12hr 60 60 40 60 30 50 10 30 Rain shwrs L C C L C C C L C S C C S C Tstms L C C C S C $$ MDZ014-082000- Annapolis MD 38.99N 76.49W Elev. 7 ft 849 AM EDT Mon Jul 8 2024 Date Mon 07/08/24 Tue 07/09/24 Wed 07/10/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 94 79 91 79 91 Temp 90 91 94 87 83 81 80 81 87 90 90 86 82 81 79 81 87 89 89 85 Dewpt 72 73 73 74 76 75 75 76 76 75 75 75 77 76 76 76 77 77 76 76 RH 56 56 51 65 80 82 85 85 70 62 62 70 85 85 91 85 72 68 66 75 Wind dir E SE S S S S S S S S S S S S S S S S S S Wind spd 4 6 6 6 5 4 4 4 6 10 11 11 8 6 6 8 12 16 17 17 Clouds SC SC SC SC SC SC SC SC SC B1 B1 B1 SC SC SC B1 SC SC SC SC PoP 12hr 20 10 30 20 40 QPF 12hr 0.01 0 0 0.09 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C S S C C C C C Tstms S S C C S S S C C C Heat index 97100103 96 91 87 85 87 98101101 95 90 87 87 99102100 94 Max heat 86 100 104 94 87 101 101 94 87 102 103 Heat Y Y Date Thu 07/11/24 Fri 07/12/24 Sat 07/13/24 Sun 07/14/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 90 77 85 75 88 75 90 Temp 81 81 89 86 81 78 84 83 77 77 86 85 78 78 89 87 Dewpt 74 75 77 76 74 74 74 73 74 74 75 75 73 73 73 73 PWind dir S S S S S S SW SW Wind char GN GN LT GN LT LT LT LT Avg clouds SC B1 SC B1 B1 B1 B1 B1 B1 B1 B1 SC FW FW FW FW PoP 12hr 50 60 60 70 50 60 30 30 Rain shwrs C C C L L C L L C C C L C S C Tstms C C C C L C C C C C S C C C $$