Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
850 FOUS51 KLWX 071139 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 738 AM EDT Tue May 7 2024 VAZ054-072000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 738 AM EDT Tue May 7 2024 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 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 81 67 89 67 82 Temp 65 72 76 80 76 71 68 68 69 80 87 85 79 73 69 67 69 72 78 80 76 Dewpt 65 66 65 66 64 65 64 64 65 64 59 58 58 59 60 60 63 65 64 64 63 RH 100 81 69 62 66 81 87 87 87 58 39 40 49 62 73 78 81 79 62 58 64 Wind dir NE NE SE SE SE SE S S SW W W W W SW SW S S S SW SW W Wind spd 2 4 5 6 6 5 5 4 5 8 10 11 6 4 4 4 5 9 13 16 11 Clouds OV B2 B1 B1 B1 B1 B2 B2 B2 SC SC SC FW SC B1 B2 B2 B2 B2 B1 B1 PoP 12hr 50 30 20 50 90 QPF 12hr 0.03 0 0 0.05 0.42 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C S S S S C C L L D D C Tstms C C C S S S S S S S S S C C Obvis PF Heat index 82 82 82 Max heat 82 86 86 83 Date Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 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 63 72 53 70 54 70 54 76 Temp 66 63 70 64 56 55 67 64 56 57 68 65 56 59 74 70 Dewpt 58 53 48 44 44 44 42 43 47 48 45 47 47 50 49 51 PWind dir W NW NW NW S W W SW Wind char GN BZ GN GN LT GN LT GN Avg clouds SC SC B1 SC SC SC SC B1 SC SC SC SC SC FW SC SC PoP 12hr 40 40 20 20 20 30 10 20 Rain shwrs C S C S S S S S C S Tstms C S $$ MDZ013-072000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 738 AM EDT Tue May 7 2024 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 64 86 62 78 Temp 66 71 75 76 74 68 66 65 66 76 84 82 76 69 64 62 65 70 75 77 72 Dewpt 64 65 64 64 64 65 64 64 65 63 59 57 58 58 58 58 61 63 63 63 62 RH 93 81 69 66 71 90 93 97 97 64 43 43 54 68 81 87 87 78 66 62 71 Wind dir N E E SE SE S S S S W W W W W W NE SE SE S SW S Wind spd 3 3 5 5 5 4 4 4 4 6 10 10 6 5 5 4 5 10 13 13 10 Clouds B2 B2 B1 B1 B1 B1 B2 B2 B2 SC SC FW FW SC B1 B2 B2 B2 B2 B2 B1 PoP 12hr 40 40 20 40 90 QPF 12hr 0.01 0.01 0 0.06 0.37 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C S S S S C C L L D D C Tstms C C C S S S S S S S S C C Obvis PF PF PF Heat index 84 82 Max heat 84 84 Date Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 70 51 68 52 70 52 74 Temp 63 59 68 62 54 53 66 64 54 55 68 64 54 56 73 70 Dewpt 58 53 50 47 45 45 43 45 48 49 46 48 48 50 50 53 PWind dir W NW NW NW SW W W SW Wind char GN BZ GN GN GN GN GN GN Avg clouds SC SC B1 SC SC SC SC SC SC SC SC B1 SC SC SC SC PoP 12hr 50 40 20 20 20 30 20 30 Rain shwrs C S S C S S S S S S C S S C Tstms C S S S $$ MDZ011-072000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 738 AM EDT Tue May 7 2024 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 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 81 68 91 68 84 Temp 67 74 77 79 77 71 70 69 68 79 87 89 81 75 69 68 71 76 80 82 75 Dewpt 64 64 62 63 63 63 63 63 63 62 58 56 56 57 57 57 60 61 62 62 61 RH 90 71 60 58 62 76 78 81 84 56 38 33 42 54 66 68 68 60 54 51 62 Wind dir N E E SE SE S SE SE S SW W W W W W N SE SE S SW S Wind spd 3 4 5 5 5 4 4 5 4 6 10 10 6 5 4 4 5 9 12 12 9 Clouds B2 B1 B1 B1 B1 B1 B2 OV B2 B1 SC FW FW SC B1 B2 B2 B2 B2 B2 B1 PoP 12hr 40 40 20 40 90 QPF 12hr 0.01 0.01 0 0.07 0.38 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C S S C C L L D D C Tstms C S C S S S S S S S C C Obvis PF Heat index 81 81 83 Max heat 81 86 88 81 84 Date Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 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 75 56 73 57 74 57 79 Temp 67 67 73 65 58 59 70 66 59 60 72 67 59 62 77 72 Dewpt 57 52 48 45 44 43 42 43 46 47 45 46 47 48 49 51 PWind dir W NW NW NW SW W W SW Wind char GN BZ GN GN GN GN GN GN Avg clouds SC SC B1 SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 40 20 20 20 40 20 30 Rain shwrs C S S C S S S S S S C S S C Tstms C S S S $$ WVZ052-072000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 738 AM EDT Tue May 7 2024 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 61 85 59 78 Temp 63 69 75 79 74 67 65 63 66 76 82 83 77 67 62 59 62 67 74 77 73 Dewpt 62 63 63 63 63 62 62 61 62 60 55 54 55 54 54 55 60 61 61 60 59 RH 97 81 66 58 69 84 90 93 87 58 40 37 47 63 75 87 93 81 64 56 62 Wind dir NE E E SE SE S S S SW W W W W W W S S S S SW W Wind spd 2 3 3 4 5 4 5 5 5 10 12 12 6 4 3 4 5 6 11 17 17 Clouds B2 B2 B2 B2 B1 B1 B2 B2 B1 SC FW FW FW SC B2 OV B2 B2 B2 B1 SC PoP 12hr 60 50 20 60 90 QPF 12hr 0.04 0.04 0 0.22 0.34 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C L C C C C S S S S L L D D D D C Tstms S C C C S S S S S S S S S C C C Obvis F PF Date Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 66 46 67 46 67 46 73 Temp 61 57 63 60 49 50 64 62 50 50 65 62 50 52 71 68 Dewpt 53 50 45 41 39 42 40 42 43 45 43 44 44 47 48 51 PWind dir W NW NW W W W W SW Wind char GN BZ GN GN LT GN LT GN Avg clouds SC SC B1 SC FW FW SC SC SC SC SC SC SC SC SC SC PoP 12hr 40 50 20 20 20 40 20 30 Rain shwrs C S C C S S S S C C S S C Tstms C S S S $$ VAZ506-072000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 738 AM EDT Tue May 7 2024 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 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 80 64 87 62 80 Temp 64 70 76 78 76 70 67 64 68 78 84 85 78 69 64 62 65 71 76 79 74 Dewpt 64 65 65 65 65 65 64 64 65 63 58 57 59 59 59 59 62 64 65 64 63 RH 100 84 69 64 69 84 90100 90 60 41 39 52 70 84 90 90 79 69 60 69 Wind dir NE E E SE SE SE S S SW W W W W SW SW S S S S SW W Wind spd 2 3 3 4 5 4 4 3 5 8 10 10 5 3 4 3 6 10 16 17 13 Clouds B2 B2 B2 B1 B1 B1 B2 B2 B1 SC SC FW FW SC B1 B2 B2 B2 B2 B1 SC PoP 12hr 50 40 20 50 90 QPF 12hr 0.01 0 0 0.08 0.31 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C C C C S S S S C C L L D D C Tstms S C C C S S S S S S S S S C C C Obvis PF PF Heat index 84 Max heat 84 85 Date Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 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 60 69 50 68 50 70 50 74 Temp 62 62 67 63 53 52 66 64 53 54 68 64 53 56 73 70 Dewpt 58 53 48 46 44 45 43 46 47 49 45 49 47 50 49 53 PWind dir W NW NW NW SW NW W SW Wind char GN BZ GN GN GN GN LT GN Avg clouds SC SC B1 SC SC FW SC B1 SC SC SC SC SC FW SC SC PoP 12hr 40 40 20 20 20 40 10 30 Rain shwrs C S C S S S S S C C Tstms C S $$ VAZ037-072000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 738 AM EDT Tue May 7 2024 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 66 91 66 85 Temp 65 75 79 82 77 73 69 67 70 83 88 89 82 74 68 67 69 75 81 84 79 Dewpt 62 64 63 64 63 63 62 62 63 62 57 56 59 58 58 57 61 63 62 61 59 RH 90 69 58 55 62 71 78 84 78 49 35 33 46 57 70 70 76 66 53 46 50 Wind dir S S S S SE SW SW SW SW W W W W W W W W SW SW SW SW Wind spd 2 2 4 4 4 3 4 4 5 6 10 9 5 3 4 4 6 8 17 19 13 Clouds B2 B1 B1 SC B1 B1 B1 B1 B1 SC SC SC SC SC B1 B2 B2 B2 B2 B1 SC PoP 12hr 40 20 30 60 90 QPF 12hr 0.15 0 0 0.14 0.27 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C S S C C C C L L D D D D S Tstms S C C S S C S C S S C C S C C S Obvis F Heat index 83 84 82 82 84 Max heat 84 87 88 82 84 Dense Fog Y Date Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 74 49 73 52 72 51 77 Temp 67 62 71 65 54 55 69 66 55 56 69 66 55 57 75 71 Dewpt 54 50 44 41 40 41 40 43 44 45 44 45 44 46 47 49 PWind dir W NW NW W W W W SW Wind char GN BZ GN GN LT GN LT GN Avg clouds SC SC SC SC FW FW SC SC SC SC SC SC SC FW SC SC PoP 12hr 20 40 20 20 20 30 10 20 Rain shwrs S S C S S S S C S Tstms S S S $$ MDZ003-072000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 738 AM EDT Tue May 7 2024 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 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 79 62 85 60 77 Temp 64 71 75 78 73 67 65 63 67 75 80 83 76 67 62 61 63 67 73 76 71 Dewpt 62 63 63 63 63 63 63 62 63 62 56 54 56 55 56 56 60 61 62 62 61 RH 93 76 66 60 71 87 93 97 87 64 44 37 50 65 81 84 90 81 68 62 71 Wind dir NE E SE SE SE S S S SW W W W NW NW W E S S S SW W Wind spd 3 3 4 5 5 5 6 5 6 11 13 12 8 5 4 4 5 10 11 14 13 Clouds B2 B2 B2 B1 B1 B1 B2 B2 B1 SC FW FW FW SC B2 OV OV B2 B2 B1 SC PoP 12hr 70 60 20 60 90 QPF 12hr 0.05 0.03 0 0.17 0.42 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C L C C L L S S L L D D D D C Tstms C C C S S S S S S C C C Obvis PF PF Heat index 80 Max heat 80 82 Date Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 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 56 65 47 66 48 68 47 72 Temp 61 57 64 60 50 51 64 61 51 52 65 61 51 53 71 67 Dewpt 55 52 47 44 42 44 42 45 45 47 46 48 46 49 50 53 PWind dir W W NW W SW W SW SW Wind char GN BZ GN GN LT GN LT GN Avg clouds SC SC B1 SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 40 50 20 20 30 40 20 30 Rain shwrs C S C C S S S C C C S S C Tstms C S S S S $$ MDZ017-072000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 738 AM EDT Tue May 7 2024 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 64 84 65 81 Temp 67 73 76 76 70 66 66 65 68 77 82 80 72 69 66 65 68 75 80 78 72 Dewpt 64 65 65 65 64 63 63 63 64 65 63 62 63 62 62 61 64 66 66 64 64 RH 90 76 69 69 81 90 90 93 87 67 53 54 73 78 87 87 87 74 62 62 76 Wind dir N NE E SE SE S S S S SW SW SW SW S SW S S S SW SW SW Wind spd 3 3 5 6 5 6 6 6 6 6 8 8 6 6 8 8 6 10 14 14 13 Clouds OV B2 B1 SC SC B1 B2 B2 B2 B1 SC SC SC SC B1 B2 B2 B2 B2 B2 B1 PoP 12hr 30 30 20 40 90 QPF 12hr 0 0.01 0.04 0.03 0.47 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S C C S S S S C C L L D D C Tstms C S S S S S S S S S S S S C C Obvis PF PF PF PF Heat index 83 81 82 Max heat 83 83 82 82 Date Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 74 54 70 55 71 55 75 Temp 65 65 72 65 57 56 69 63 57 58 69 64 57 59 73 68 Dewpt 60 56 53 50 46 46 45 47 48 50 49 51 50 51 52 54 PWind dir W NW NW NW S W NW SW Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC B1 SC SC SC SC SC SC SC SC SC SC FW SC PoP 12hr 40 40 20 20 20 30 10 20 Rain shwrs C C S S S S S C S Tstms C S $$ WVZ502-072000- Petersburg WV 38.99N 79.15W Elev. 963 ft 738 AM EDT Tue May 7 2024 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 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 82 62 86 59 80 Temp 61 70 77 80 77 70 66 65 66 76 82 85 77 66 62 59 61 69 76 79 74 Dewpt 61 63 64 64 63 62 61 60 60 59 54 54 55 56 55 56 60 63 62 61 58 RH 100 78 64 58 62 76 84 84 81 56 38 35 47 70 78 90 97 81 62 54 57 Wind dir NE NE W W S SW SW SW SW W W W W SW SW SW SW SW SW W W Wind spd 2 2 4 5 4 4 5 6 6 10 11 10 5 4 4 4 8 10 17 20 18 Clouds B2 B2 B1 B2 B1 B1 B1 B2 B2 SC FW FW SC SC B2 OV B2 B2 B2 B1 SC PoP 12hr 50 40 20 70 90 QPF 12hr 0.05 0.04 0 0.25 0.27 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C S S S S C C L L D D D D C Tstms S C C C C S S S S S S C S C C C C Obvis PF Heat index 82 Max heat 82 81 83 Date Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 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 54 65 45 68 46 68 46 75 Temp 61 54 63 58 49 48 64 61 50 50 65 62 50 52 73 69 Dewpt 52 48 47 44 41 41 41 45 45 45 45 46 45 47 48 52 PWind dir W W NW W W W SW W Wind char BZ BZ GN GN GN GN GN GN Avg clouds SC B1 B1 SC SC SC SC SC SC SC SC SC SC FW SC SC PoP 12hr 40 50 20 20 30 50 20 30 Rain shwrs C S C C S S C S C C S S C Tstms C S S S S S S $$ MDZ014-072000- Annapolis MD 38.99N 76.49W Elev. 7 ft 738 AM EDT Tue May 7 2024 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 65 84 65 77 Temp 65 70 74 75 73 69 66 65 67 73 80 82 77 71 67 66 68 70 73 76 71 Dewpt 64 65 65 64 64 65 64 64 64 63 62 61 60 62 60 60 62 64 66 64 62 RH 97 84 74 69 73 87 93 97 90 71 54 49 56 73 78 81 81 81 79 66 73 Wind dir NE NE E SE SE S S S S SW W W SW SW SW S SE S S SW NW Wind spd 4 5 5 5 5 5 5 5 6 6 9 8 6 5 5 5 5 9 10 13 10 Clouds B2 B1 B1 SC B1 B1 B2 B2 B2 B1 SC FW FW SC B1 B2 B2 B2 B2 B2 B1 PoP 12hr 30 40 20 40 90 QPF 12hr 0.01 0 0.01 0.04 0.56 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S C C C S S S S C C L L D D C Tstms C C S S S S S S S S S S C C Obvis PF PF PF Heat index 81 83 Max heat 81 83 Date Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 70 53 68 55 69 54 73 Temp 66 62 68 63 56 56 65 64 57 58 66 64 57 59 71 68 Dewpt 59 54 51 48 47 45 45 46 49 50 49 49 49 51 52 54 PWind dir W NW NW NW S W W SW Wind char GN BZ GN GN GN GN GN GN Avg clouds SC SC B1 SC SC SC SC SC SC SC SC SC SC FW SC SC PoP 12hr 50 40 20 20 20 30 10 20 Rain shwrs C S C S S S S S S C S Tstms C S $$