Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
724 FOUS51 KLWX 151424 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 1023 AM EDT Thu May 15 2025 VAZ054-152000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 1023 AM EDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 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 79 69 88 73 89 Temp 71 76 78 75 71 69 69 71 79 85 87 82 77 74 73 74 80 86 88 83 Dewpt 64 65 65 66 65 65 65 67 69 70 69 69 68 67 66 66 65 62 60 58 RH 79 69 64 74 81 87 87 87 72 61 55 65 74 79 79 76 60 45 39 43 Wind dir W SW S SE SE SE S S S W SW SW SW SW SW SW SW W W W Wind spd 4 4 4 4 3 2 3 4 5 10 9 6 5 5 5 9 12 14 14 11 Clouds B2 B1 SC SC B1 B1 B2 B2 B2 B1 SC B1 B1 B1 B1 B2 SC FW FW SC PoP 12hr 30 40 50 40 40 QPF 12hr 0 0.07 0.13 0.13 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C C C C C C C C S S Tstms S S C C C C C C C C S S Heat index 90 91 85 82 86 88 83 Max heat 90 92 83 86 88 Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 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 67 79 61 76 55 75 58 74 Temp 72 68 77 73 64 62 73 70 60 58 71 70 61 61 71 70 Dewpt 56 55 52 52 50 49 48 46 43 42 43 46 47 49 52 54 PWind dir W W NW NW N N NE SE Wind char GN GN GN GN GN GN LT GN Avg clouds SC SC SC SC FW FW FW FW FW FW FW SC SC B1 B1 B2 PoP 12hr 5 5 0 0 0 5 20 50 Rain shwrs S C C $$ MDZ013-152000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 1023 AM EDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 64 86 67 87 Temp 69 74 77 74 67 66 65 67 76 83 85 80 73 69 68 70 78 85 86 80 Dewpt 65 66 65 65 66 65 65 67 68 69 70 69 69 68 67 67 67 64 61 59 RH 87 76 67 74 97 97100100 76 63 61 69 87 97 97 90 69 50 43 49 Wind dir SW W S SE S S SW S S W SW S SW SW SW SW SW W W W Wind spd 4 4 3 3 1 1 1 2 4 6 6 3 2 2 2 4 10 12 12 8 Clouds OV B1 B1 SC SC B1 B2 OV B2 SC SC B1 B1 B1 B2 B1 B1 SC FW SC PoP 12hr 30 30 60 50 50 QPF 12hr 0.01 0.01 0.12 0.09 0.11 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C L C C C C C C C C C S S Tstms S S C S C C C C C C C C S S Obvis PF Heat index 87 90 83 86 86 81 Max heat 87 90 86 87 Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 77 56 75 52 75 54 73 Temp 67 66 76 71 61 60 73 69 56 56 70 68 58 59 70 67 Dewpt 57 55 53 53 50 49 49 48 43 42 43 46 47 49 51 54 PWind dir W W NW NW N N NE SE Wind char LT GN LT GN LT LT LT LT Avg clouds SC SC FW FW FW FW FW FW FW FW FW SC SC B1 B1 B2 PoP 12hr 10 5 0 0 0 5 20 50 Rain shwrs S C C $$ MDZ011-152000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 1023 AM EDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 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 78 69 88 73 89 Temp 68 74 76 74 70 69 70 70 77 84 87 81 77 74 73 74 81 87 89 83 Dewpt 64 64 64 64 64 64 64 66 67 68 67 68 67 66 65 65 63 60 57 57 RH 87 71 66 71 81 84 81 87 71 59 52 65 71 76 76 74 54 40 34 41 Wind dir SW SW SE SE SE N S S S SW SW S SW SW SW SW SW W W W Wind spd 4 3 3 2 1 0 1 1 4 6 5 3 2 2 2 3 10 12 12 9 Clouds OV B2 B1 B1 B1 B1 B2 B2 B2 SC SC B1 B1 B1 B2 B1 B1 SC FW SC PoP 12hr 40 30 60 50 50 QPF 12hr 0.02 0.01 0.13 0.09 0.13 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L C C C C C C C C C S S Tstms S C C S S C C C C C C C C S S Heat index 87 90 84 82 87 Max heat 87 91 87 88 Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 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 67 80 60 77 56 76 59 76 Temp 72 68 78 75 65 60 74 71 60 57 72 70 62 60 72 71 Dewpt 56 54 50 49 48 46 45 44 41 40 41 43 46 47 48 51 PWind dir W W NW NW N N N SE Wind char LT GN LT GN LT LT LT LT Avg clouds SC SC FW FW FW FW FW FW FW FW FW SC SC B1 B1 B2 PoP 12hr 10 5 0 0 0 5 20 50 Rain shwrs S C C $$ WVZ052-152000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 1023 AM EDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 63 86 65 84 Temp 69 75 78 74 67 66 64 67 77 84 85 79 71 67 65 68 77 82 83 77 Dewpt 63 63 63 64 64 63 63 65 68 67 66 65 64 63 62 62 62 58 56 54 RH 81 66 60 71 90 90 97 93 74 57 53 62 79 87 90 81 60 44 40 45 Wind dir S S SE SE SE SE S S SW W W SW SW SW SW SW W W W W Wind spd 3 2 3 3 1 1 1 2 5 9 9 4 2 2 5 8 11 16 14 11 Wind gust 21 26 26 Clouds B2 B1 B1 SC B1 B2 B2 B2 B1 B1 SC B1 B1 B1 B2 B2 SC FW FW SC PoP 12hr 40 60 60 60 40 QPF 12hr 0 0.16 0.02 0.09 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L C C C C C L L C C S S Tstms C S C C S C C C C C C S S S S Obvis PF PF Heat index 87 87 82 Max heat 87 87 82 83 Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 75 53 73 47 72 51 71 Temp 64 63 73 69 59 58 70 65 53 54 68 66 55 57 68 67 Dewpt 53 51 51 49 47 47 46 44 41 40 42 47 46 47 50 52 PWind dir W W NW NW NW N NE SE Wind char GN GN GN GN LT LT LT LT Avg clouds SC SC SC SC FW FW FW FW FW FW FW SC B1 B1 B1 B2 PoP 12hr 5 10 0 0 0 10 30 60 Rain shwrs S C C L $$ VAZ506-152000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 1023 AM EDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 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 79 64 87 67 86 Temp 70 75 78 74 69 66 64 67 77 85 86 80 72 69 68 70 79 84 86 79 Dewpt 66 66 66 67 67 66 64 67 71 71 70 70 69 68 66 67 68 65 62 60 RH 87 74 67 79 93100100100 82 63 59 72 90 97 93 90 69 53 45 52 Wind dir SW SW S SE S S S S SW W W S SW SW SW SW SW W W W Wind spd 3 3 3 3 2 2 2 2 5 8 8 4 3 3 4 5 11 13 12 10 Wind gust 24 23 Clouds B2 B1 B1 SC B1 B1 B2 OV B1 B1 B1 B1 B1 B1 B2 B2 SC FW FW SC PoP 12hr 30 40 60 50 30 QPF 12hr 0.03 0.11 0.04 0.11 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C L C C C C C C C C C S S Tstms C C C C C C C S S S S Obvis PF PF Heat index 90 91 83 86 86 Max heat 90 92 86 87 Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 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 62 76 56 74 49 73 53 71 Temp 66 64 75 70 61 60 72 68 56 55 70 67 57 58 69 68 Dewpt 56 56 55 54 52 50 51 49 44 44 46 51 48 50 55 57 PWind dir W W NW NW NW N NE SE Wind char LT GN GN GN LT LT LT LT Avg clouds SC SC SC FW FW FW FW FW FW FW FW SC SC B1 B1 B2 PoP 12hr 5 5 0 0 0 5 20 50 Rain shwrs S S C C $$ VAZ037-152000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 1023 AM EDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 66 87 68 87 Temp 72 79 80 76 70 68 67 69 81 86 84 79 75 70 68 70 78 85 86 80 Dewpt 64 64 65 65 64 64 63 65 68 67 66 66 64 63 62 63 63 58 55 55 RH 76 60 60 69 81 87 87 87 65 53 55 64 69 78 81 78 60 40 35 42 Wind dir S S S S S SW SW SW SW W W SW SW SW SW SW W W W W Wind spd 3 6 6 4 2 2 2 3 6 10 8 5 4 3 5 6 11 12 12 10 Wind gust 21 23 Clouds B1 SC B1 B1 SC B2 B2 B1 SC B1 B1 B1 B1 B1 B1 B2 SC FW FW FW PoP 12hr 50 30 40 40 20 QPF 12hr 0.22 0.03 0.03 0.12 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C C C C C S S Tstms C C C C C C S S Heat index 82 84 89 86 80 Max heat 82 89 88 84 86 Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 80 55 79 51 75 54 73 Temp 67 65 78 72 61 60 76 70 58 56 72 69 59 59 70 69 Dewpt 51 54 51 51 50 51 49 49 45 43 45 50 48 49 53 54 PWind dir W W NW NW N N NE SE Wind char LT GN LT LT LT LT LT LT Avg clouds SC SC SC FW FW FW FW FW FW FW FW SC SC B1 B1 B1 PoP 12hr 0 5 0 0 0 5 20 50 Rain shwrs S S C C $$ MDZ003-152000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 1023 AM EDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 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 78 63 84 64 83 Temp 69 74 78 74 67 65 64 67 75 83 84 79 70 67 65 68 76 81 83 76 Dewpt 64 64 64 64 64 64 63 66 69 70 67 67 66 65 63 65 64 61 59 58 RH 84 71 62 71 90 97 97 97 82 65 57 67 87 93 93 90 66 51 44 54 Wind dir SW SW S SE SE SE SW S SW W W SW SW S SW SW SW W W W Wind spd 2 3 3 3 2 2 2 2 5 9 9 5 3 3 4 6 11 14 14 11 Wind gust 21 26 26 Clouds OV B1 B1 B1 SC B1 B2 B2 B1 B1 SC B1 B1 B1 B2 B1 SC FW FW SC PoP 12hr 40 60 60 60 40 QPF 12hr 0 0.20 0.15 0.13 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C L L C C C C C L L C C S S Tstms S S C S C C S C C C C C C S S S S Obvis PF PF PF Heat index 87 87 82 83 Max heat 87 88 82 83 Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 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 58 72 52 72 47 72 50 70 Temp 63 62 71 67 58 57 70 65 53 53 68 66 55 56 67 66 Dewpt 55 53 53 52 49 47 49 46 41 41 45 48 45 47 53 54 PWind dir W W NW NW NW N NE SE Wind char GN GN GN GN LT LT LT LT Avg clouds SC SC SC SC FW FW FW FW FW FW FW SC B1 B1 B1 B2 PoP 12hr 10 5 0 0 0 10 30 60 Rain shwrs S C C L $$ MDZ017-152000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 1023 AM EDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 66 84 69 88 Temp 74 78 79 73 69 67 67 70 78 82 83 77 71 70 69 73 81 86 87 81 Dewpt 65 66 66 66 66 66 66 68 69 69 70 68 67 67 66 69 68 66 63 62 RH 74 67 64 79 90 97 97 93 74 65 65 74 87 90 90 87 65 51 45 53 Wind dir SW S SE SE S S S SW S SW SW SW SW SW S SW SW W W SW Wind spd 5 5 5 4 3 2 3 3 6 9 9 5 5 5 5 6 12 13 12 8 Clouds B2 SC SC SC SC SC B2 B2 B1 SC B1 B1 B1 SC B1 B1 B1 SC FW FW PoP 12hr 20 30 50 40 40 QPF 12hr 0 0.05 0.12 0.19 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C S C C C C C C C C S S Tstms C C C C C C C C S S Heat index 85 87 84 88 88 82 Max heat 85 88 88 89 Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 82 61 78 56 76 59 75 Temp 70 69 79 73 65 64 75 70 62 60 72 68 63 64 72 69 Dewpt 58 58 56 56 54 52 52 52 47 46 46 50 51 52 53 56 PWind dir W W NW NW N N NE SE Wind char LT GN GN GN GN GN LT GN Avg clouds FW FW FW FW FW FW CL FW FW FW FW SC SC SC B1 B2 PoP 12hr 5 5 5 0 0 5 20 40 Rain shwrs S C C $$ WVZ502-152000- Petersburg WV 38.99N 79.15W Elev. 963 ft 1023 AM EDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 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 83 61 86 61 84 Temp 71 79 80 73 67 64 62 66 78 83 84 77 69 64 62 65 76 82 83 76 Dewpt 63 62 64 66 64 63 62 66 67 66 64 63 62 61 60 60 59 55 54 54 RH 76 56 58 79 90 97100100 69 57 51 62 78 90 93 84 56 40 37 46 Wind dir E E SE E SW S SE S W W W SW SW SW SW SW W W W W Wind spd 1 1 2 2 2 2 2 2 8 10 8 4 4 4 5 5 12 14 14 10 Wind gust 16 23 26 26 Clouds SC SC B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 B2 B1 SC FW SC SC PoP 12hr 40 60 50 70 40 QPF 12hr 0.04 0.43 0.03 0.17 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C L C C C C C C L L C C C C Tstms C C S S C C S C C C C C C C C S S Heat index 82 85 85 Max heat 83 85 87 81 83 Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 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 57 76 51 76 45 78 50 75 Temp 61 59 73 68 56 55 72 67 51 51 73 68 55 56 73 69 Dewpt 52 51 51 51 49 48 48 48 44 43 44 50 49 50 55 56 PWind dir W W NW NW NW N SE S Wind char LT GN LT LT LT LT LT LT Avg clouds B1 B1 SC SC SC SC FW FW FW FW SC SC B1 B1 B2 B1 PoP 12hr 10 10 0 0 0 10 30 60 Rain shwrs S C C L $$ MDZ014-152000- Annapolis MD 38.99N 76.49W Elev. 7 ft 1023 AM EDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 66 82 68 84 Temp 69 73 75 73 69 67 67 69 74 80 82 78 72 70 68 70 77 82 83 79 Dewpt 64 65 66 65 66 65 65 67 68 69 69 68 68 67 66 67 65 63 62 59 RH 84 76 74 76 90 93 93 93 82 69 65 71 87 90 93 90 67 53 49 50 Wind dir SW S S S S S S SW S SW SW S SW SW SW SW SW W W W Wind spd 5 4 4 3 1 1 1 2 5 8 6 4 2 2 3 5 10 12 11 9 Clouds B2 B1 B1 SC SC SC B2 B2 B2 SC B1 B1 B1 B1 B2 B1 B1 SC FW SC PoP 12hr 40 30 50 40 50 QPF 12hr 0.02 0.02 0.10 0.12 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C C C C C C C C C C S S Tstms S S C S C C C C C C C C S S Obvis PF Heat index 83 85 83 84 Max heat 83 85 83 84 Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 76 58 73 55 72 57 71 Temp 69 67 74 70 63 61 70 68 59 58 68 66 60 61 68 66 Dewpt 58 56 53 53 52 49 48 48 46 43 43 47 50 50 51 54 PWind dir W W NW NW N N NE SE Wind char LT GN GN GN GN LT LT LT Avg clouds SC FW FW FW FW FW FW FW FW FW FW SC SC B1 B1 B2 PoP 12hr 10 5 0 0 0 5 20 40 Rain shwrs S C C $$