Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
058 FOUS51 KLWX 180836 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 436 AM EDT Sat Oct 18 2025 VAZ054-182000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 436 AM EDT Sat Oct 18 2025 Date Sat 10/18/25 Sun 10/19/25 Mon 10/20/25 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 71 57 77 55 66 Temp 51 51 61 69 71 65 60 58 58 58 69 75 75 70 66 61 57 55 60 65 64 59 Dewpt 38 41 43 45 48 51 52 53 54 55 57 55 54 56 58 55 52 48 47 43 41 41 RH 61 68 51 42 44 60 75 83 86 90 66 50 48 61 75 81 83 77 62 45 43 51 Wind dir NW S S S S SE S S S S S S S S S W W W W W W W Wind spd 1 3 6 8 10 9 9 9 10 11 16 19 21 18 18 16 17 16 18 19 17 11 Wind gust 31 34 29 Clouds SC B2 B2 SC SC CL FW SC SC SC SC B1 B2 OV OV B2 B1 SC SC FW FW CL PoP 12hr 10 0 20 90 10 QPF 12hr 0 0 0 0.55 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S D D C C Date Tue 10/21/25 Wed 10/22/25 Thu 10/23/25 Fri 10/24/25 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 48 71 51 63 46 63 46 65 Temp 53 49 69 63 57 51 61 56 50 46 61 56 51 46 63 58 Dewpt 42 43 44 47 47 42 39 39 39 39 37 39 40 40 41 43 PWind dir SW S W W W W W W Wind char GN GN GN BZ GN GN GN GN Avg clouds CL FW FW SC B1 SC FW FW FW FW FW SC FW SC SC SC PoP 12hr 0 5 30 5 0 5 5 10 Rain shwrs C $$ MDZ013-182000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 436 AM EDT Sat Oct 18 2025 Date Sat 10/18/25 Sun 10/19/25 Mon 10/20/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 54 75 52 65 Temp 42 44 57 67 67 59 56 55 54 55 68 74 72 67 64 59 54 52 58 63 64 58 Dewpt 37 41 46 48 50 53 53 53 54 55 60 60 59 60 60 58 52 50 51 48 46 45 RH 82 89 67 50 54 80 90 93100100 76 62 64 78 87 96 93 93 77 58 52 62 Wind dir NW S S S SE S S S SE S S S S S S SW W W W W W W Wind spd 1 1 3 5 6 4 3 3 4 5 11 13 13 12 10 9 10 9 13 13 10 5 Wind gust 24 28 25 23 20 Clouds SC B1 B2 B1 SC FW FW FW B1 SC B1 B1 B2 OV OV B2 B2 SC SC FW FW CL PoP 12hr 5 0 20 90 20 QPF 12hr 0 0 0 0.52 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S D D L L S S Coast Flood Y Y Y Y Y Y Y Date Tue 10/21/25 Wed 10/22/25 Thu 10/23/25 Fri 10/24/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 45 70 48 62 44 63 45 64 Temp 49 47 68 60 54 49 60 53 47 44 61 54 48 45 62 55 Dewpt 43 43 46 50 48 44 42 42 41 40 41 42 41 41 44 46 PWind dir W S W W W W W W Wind char LT LT LT GN LT LT LT LT Avg clouds CL CL FW SC B1 SC FW FW FW FW FW SC FW SC SC SC PoP 12hr 0 10 30 5 0 5 10 10 Rain shwrs C S $$ MDZ011-182000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 436 AM EDT Sat Oct 18 2025 Date Sat 10/18/25 Sun 10/19/25 Mon 10/20/25 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 71 58 77 56 67 Temp 52 51 62 69 69 63 61 59 58 58 69 75 75 70 67 64 59 56 60 64 66 61 Dewpt 37 40 42 44 46 48 51 52 54 54 56 56 55 56 58 56 52 48 46 44 42 41 RH 56 66 48 40 44 58 70 78 86 86 63 52 50 61 73 75 78 74 60 48 42 48 Wind dir SW NE S SE SE SE S S SE SE S S S S S SW W W W W W W Wind spd 1 1 2 5 6 4 3 3 4 5 12 16 18 14 12 10 10 10 13 13 12 5 Wind gust 28 25 25 21 21 24 Clouds SC B1 B2 SC SC FW CL FW SC SC B1 SC B2 OV OV B2 B2 SC SC FW FW CL PoP 12hr 5 0 20 90 20 QPF 12hr 0 0 0 0.56 0.11 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S D D L L S S Date Tue 10/21/25 Wed 10/22/25 Thu 10/23/25 Fri 10/24/25 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 50 72 52 64 47 64 48 66 Temp 54 50 69 64 58 52 62 57 52 47 62 57 52 48 64 58 Dewpt 42 41 43 47 47 42 39 39 39 39 38 39 39 39 40 42 PWind dir W S W W W W W W Wind char LT GN LT GN LT GN LT LT Avg clouds CL CL FW SC B1 SC FW SC FW FW FW SC FW SC SC SC PoP 12hr 0 10 30 5 0 5 10 10 Rain shwrs C S $$ WVZ052-182000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 436 AM EDT Sat Oct 18 2025 Date Sat 10/18/25 Sun 10/19/25 Mon 10/20/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 74 50 76 49 65 Temp 41 43 58 71 73 64 55 53 50 52 67 74 74 66 59 54 50 49 57 62 64 55 Dewpt 37 38 40 42 45 47 49 50 50 51 55 54 53 54 54 50 46 45 43 41 39 38 RH 85 82 51 35 37 54 80 89100 96 65 50 48 65 83 86 86 86 59 46 40 53 Wind dir N SW S SE SE SE SE SE E SE S S S S SW W W W W W W W Wind spd 0 1 2 5 6 4 3 2 3 5 13 19 19 14 12 10 12 12 14 13 12 5 Wind gust 24 34 33 26 23 20 23 25 26 Clouds B1 B2 B1 FW FW FW FW SC SC SC B1 B1 B2 OV OV B1 B1 SC SC FW FW CL PoP 12hr 5 5 50 80 10 QPF 12hr 0 0 0.04 0.56 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C D D C C Date Tue 10/21/25 Wed 10/22/25 Thu 10/23/25 Fri 10/24/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 39 70 43 60 39 62 39 64 Temp 44 41 68 58 49 44 58 51 44 40 60 51 43 40 62 53 Dewpt 38 36 42 45 43 39 37 37 37 36 36 37 37 36 39 40 PWind dir SW SW W W W NW W SW Wind char LT LT LT GN LT GN LT LT Avg clouds CL FW FW SC SC SC SC SC FW FW FW SC FW SC SC SC PoP 12hr 0 10 20 5 5 5 10 10 Rain shwrs S $$ VAZ506-182000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 436 AM EDT Sat Oct 18 2025 Date Sat 10/18/25 Sun 10/19/25 Mon 10/20/25 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 72 54 76 50 65 Temp 41 43 57 69 71 62 58 56 56 56 68 75 74 69 61 56 52 50 59 65 63 55 Dewpt 36 40 46 49 51 53 54 54 54 56 60 58 57 59 60 55 50 49 50 46 44 43 RH 82 89 67 49 49 72 86 93 93100 76 55 55 70 97 96 93 96 72 50 50 64 Wind dir E S S S S SE S S S S S S S S S W W W W W W W Wind spd 1 2 4 5 6 5 5 4 5 8 14 19 19 14 12 10 10 11 13 14 11 5 Wind gust 26 33 33 25 24 25 21 Clouds SC B2 B2 SC FW FW CL SC SC FW SC B1 B2 OV OV B1 B1 SC SC FW CL CL PoP 12hr 10 0 30 90 10 QPF 12hr 0 0 0 0.64 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C D D C C Date Tue 10/21/25 Wed 10/22/25 Thu 10/23/25 Fri 10/24/25 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 42 71 46 62 41 63 42 65 Temp 46 43 69 61 51 46 60 52 45 42 61 53 46 42 63 55 Dewpt 42 40 46 49 47 42 41 40 40 39 40 41 40 40 44 45 PWind dir SW S W W W W W W Wind char LT GN LT GN LT GN LT LT Avg clouds CL FW FW SC SC SC FW FW FW FW FW SC FW SC SC SC PoP 12hr 0 5 20 0 0 5 10 5 Rain shwrs S $$ VAZ037-182000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 436 AM EDT Sat Oct 18 2025 Date Sat 10/18/25 Sun 10/19/25 Mon 10/20/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 53 75 49 67 Temp 46 46 62 74 76 67 58 56 55 54 67 73 72 65 59 54 51 49 59 65 66 57 Dewpt 37 41 45 46 49 52 55 54 54 54 55 53 54 55 53 47 44 42 41 39 37 37 RH 71 83 54 37 39 59 90 93 96100 65 49 53 70 80 77 77 77 51 38 34 47 Wind dir S SW S S S S S S S S S S S S SW W W W W W W W Wind spd 1 2 3 5 5 3 2 2 3 6 14 18 17 13 10 9 9 9 10 10 9 4 Wind gust 32 29 25 23 19 Clouds B1 B2 B1 SC FW CL FW SC SC B1 B1 B1 B2 B2 B2 SC SC FW CL CL CL CL PoP 12hr 5 0 40 70 5 QPF 12hr 0 0 0.05 0.33 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L S S Date Tue 10/21/25 Wed 10/22/25 Thu 10/23/25 Fri 10/24/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 41 72 44 63 39 64 40 67 Temp 45 42 70 61 51 44 61 52 44 40 62 53 45 41 65 55 Dewpt 37 37 42 44 42 38 35 35 36 36 36 37 38 37 39 40 PWind dir W SW W W W W W SW Wind char LT GN LT GN LT LT LT LT Avg clouds CL FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 5 10 0 0 0 5 5 $$ MDZ003-182000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 436 AM EDT Sat Oct 18 2025 Date Sat 10/18/25 Sun 10/19/25 Mon 10/20/25 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 72 51 76 49 64 Temp 46 47 60 70 70 60 56 54 53 53 66 74 74 66 59 53 49 51 57 62 63 55 Dewpt 36 39 44 46 48 49 51 52 51 53 59 58 55 58 58 53 48 47 48 45 43 42 RH 68 74 55 42 45 67 83 93 93100 78 57 51 75 96100 96 86 72 54 48 61 Wind dir SE SW S S S SE S SE S SE S S S S S W W W W W W W Wind spd 1 2 3 5 6 5 4 4 4 5 14 20 20 16 12 10 12 12 17 16 13 5 Wind gust 32 32 27 23 Clouds B1 B1 B1 SC FW CL FW SC SC SC B1 B1 B2 OV OV B2 B1 B1 SC SC FW CL PoP 12hr 5 5 50 90 20 QPF 12hr 0 0 0.04 0.64 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C D D C C S S Date Tue 10/21/25 Wed 10/22/25 Thu 10/23/25 Fri 10/24/25 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 40 69 43 59 40 61 39 64 Temp 45 42 67 57 49 44 57 50 44 41 59 50 43 40 61 52 Dewpt 40 38 44 48 45 41 39 40 39 38 40 39 39 39 43 43 PWind dir SW S W W W W W W Wind char LT GN LT GN LT GN LT LT Avg clouds CL FW FW SC SC SC SC SC FW FW SC SC FW SC SC SC PoP 12hr 0 20 20 10 5 5 10 10 Rain shwrs S S $$ MDZ017-182000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 436 AM EDT Sat Oct 18 2025 Date Sat 10/18/25 Sun 10/19/25 Mon 10/20/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 58 74 54 67 Temp 49 51 61 66 67 61 61 60 59 60 68 72 72 67 66 61 56 55 60 64 66 60 Dewpt 43 45 45 47 51 53 54 54 54 56 58 58 59 60 59 58 52 49 48 47 46 46 RH 80 80 56 50 56 75 78 81 83 87 70 61 64 78 78 90 86 80 64 54 48 60 Wind dir W W SW SE SE S S S S S S S S S S SW W W W W W W Wind spd 4 3 4 6 9 9 9 9 10 10 12 16 18 17 14 13 13 11 13 12 10 6 Clouds FW B1 B2 B1 FW FW CL FW SC SC SC SC B1 OV OV B1 B1 FW FW FW FW FW PoP 12hr 5 0 5 90 10 QPF 12hr 0 0 0 0.33 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D D C C Date Tue 10/21/25 Wed 10/22/25 Thu 10/23/25 Fri 10/24/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 70 52 64 47 64 49 64 Temp 53 53 68 63 58 52 62 55 51 48 62 55 51 51 62 56 Dewpt 45 46 48 51 50 46 42 42 42 42 42 43 43 44 46 47 PWind dir W S SW NW NW NW W W Wind char LT GN GN GN GN GN LT GN Avg clouds CL CL FW FW B1 SC FW FW FW CL FW FW SC FW SC SC PoP 12hr 0 5 30 5 0 0 5 5 Rain shwrs C S $$ WVZ502-182000- Petersburg WV 38.99N 79.15W Elev. 963 ft 436 AM EDT Sat Oct 18 2025 Date Sat 10/18/25 Sun 10/19/25 Mon 10/20/25 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 51 78 43 64 Temp 37 38 60 78 80 65 58 55 53 52 68 76 73 60 52 47 45 43 54 61 64 54 Dewpt 36 34 43 46 51 53 54 53 53 52 57 53 54 56 50 44 41 41 43 39 38 39 RH 96 85 53 32 36 65 86 93100100 68 45 51 87 93 89 86 93 66 44 38 57 Wind dir S NE S E SE S S SE SE SE S S S S W W W W W W W W Wind spd 2 2 2 2 3 3 3 3 4 5 14 19 18 13 10 9 10 9 12 13 10 5 Wind gust 28 28 23 19 20 19 Clouds B1 B2 SC SC CL FW SC SC SC SC B1 B2 B2 B2 B2 B1 B1 B1 SC FW CL CL PoP 12hr 0 5 70 80 10 QPF 12hr 0 0 0.18 0.38 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L D D C C Heat index 80 Max heat 81 Date Tue 10/21/25 Wed 10/22/25 Thu 10/23/25 Fri 10/24/25 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 37 72 39 58 35 63 36 67 Temp 42 39 70 56 45 39 56 49 40 36 61 50 40 37 65 53 Dewpt 36 32 44 45 39 35 37 38 36 34 36 38 36 35 38 41 PWind dir SW SW W W W W W W Wind char LT GN LT GN LT LT LT LT Avg clouds CL FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 0 10 20 5 5 5 10 10 Rain shwrs S $$ MDZ014-182000- Annapolis MD 38.99N 76.49W Elev. 7 ft 436 AM EDT Sat Oct 18 2025 Date Sat 10/18/25 Sun 10/19/25 Mon 10/20/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 67 58 72 55 65 Temp 51 52 61 65 67 63 61 60 59 60 68 72 71 68 65 61 57 55 59 63 64 59 Dewpt 41 44 45 47 49 53 54 56 56 57 58 59 58 60 60 57 53 50 48 46 45 45 RH 68 74 56 52 52 70 78 87 90 90 70 64 63 76 84 87 86 83 67 54 50 60 Wind dir SW SW S S S S S S S S S S S S S SW W W W W W W Wind spd 1 1 4 9 9 8 6 6 8 9 12 17 16 13 13 11 11 10 13 14 12 6 Wind gust 27 24 Clouds FW B1 B2 B1 FW FW FW FW B1 SC SC SC B2 OV OV B2 B2 SC SC FW FW CL PoP 12hr 5 0 10 90 20 QPF 12hr 0 0 0 0.49 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs D D L L S S Coast Flood Y Y Y Y Y Y Y Date Tue 10/21/25 Wed 10/22/25 Thu 10/23/25 Fri 10/24/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 68 51 62 47 61 48 63 Temp 53 51 66 62 58 51 60 56 52 48 60 56 52 48 61 57 Dewpt 45 45 47 51 50 45 42 42 42 42 41 42 43 43 43 45 PWind dir W S W W W W W W Wind char LT GN LT GN LT GN LT GN Avg clouds CL CL FW SC B1 SC FW FW CL FW FW SC FW FW SC SC PoP 12hr 0 5 30 5 0 5 10 10 Rain shwrs C S $$