Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
185 FOUS51 KLWX 171314 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 913 AM EDT Sat May 17 2025 VAZ054-172000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 913 AM EDT Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 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 88 65 79 60 79 Temp 80 86 86 80 73 69 67 67 72 76 78 74 68 63 61 62 71 76 78 73 Dewpt 63 61 58 56 55 54 52 52 51 51 52 51 52 51 50 50 50 51 50 48 RH 56 43 39 44 53 59 59 59 48 42 40 44 57 65 67 65 47 42 37 41 Wind dir SW SW W W W W W W W W W NW NW NW NW NW NW NW NW NW Wind spd 13 14 16 13 11 10 10 12 16 18 18 13 11 10 10 11 13 14 13 10 Wind gust 25 28 Clouds SC FW FW FW FW FW SC FW FW SC FW FW FW FW CL CL FW SC SC SC PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Heat index 81 86 80 Max heat 86 86 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 56 71 58 66 58 67 55 70 Temp 62 57 68 68 61 58 64 63 60 58 64 64 58 56 67 66 Dewpt 46 42 42 44 49 52 54 53 53 53 51 49 47 48 47 46 PWind dir N N E E NE NW NW NW Wind char GN LT LT GN GN GN GN GN Avg clouds SC SC SC SC B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 5 5 60 90 80 60 40 30 Rain shwrs C L L D D C C L C S S C Tstms S $$ MDZ013-172000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 913 AM EDT Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 61 77 57 77 Temp 78 85 85 78 70 65 62 64 70 75 77 72 66 60 58 59 69 75 77 71 Dewpt 65 62 58 58 56 54 53 53 52 53 53 53 53 51 50 50 51 51 50 49 RH 64 46 40 50 61 68 72 67 53 46 43 51 63 72 75 72 53 43 39 46 Wind dir W W W W W W W W W W W W NW NW NW NW NW NW NW NW Wind spd 10 12 11 10 8 5 6 10 13 14 14 10 8 6 6 9 10 11 11 8 Wind gust 21 25 25 Clouds SC CL FW FW FW FW FW FW FW FW FW FW FW FW CL CL FW SC SC SC PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Heat index 86 Max heat 86 85 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 72 55 63 53 65 51 68 Temp 57 54 69 66 57 56 61 60 55 55 63 62 53 55 66 64 Dewpt 45 41 42 46 49 52 54 54 53 53 52 51 50 50 49 48 PWind dir N N E E NE NW NW NW Wind char LT LT LT GN LT GN LT GN Avg clouds SC FW SC SC B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 5 5 60 80 80 60 40 30 Rain shwrs S L L D D L L L C S C C $$ MDZ011-172000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 913 AM EDT Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 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 90 65 80 60 80 Temp 81 87 89 82 75 70 67 67 73 78 79 75 69 64 61 62 72 77 79 74 Dewpt 62 59 55 55 54 53 51 51 49 49 50 50 50 49 49 48 48 48 46 46 RH 53 39 32 40 48 55 56 56 43 36 36 41 51 58 65 60 42 36 31 37 Wind dir W W W W W W W W W W W W NW NW NW NW NW NW NW NW Wind spd 10 12 12 10 6 5 5 9 13 14 14 11 8 5 6 8 10 11 11 6 Wind gust 25 25 Clouds SC CL FW FW FW FW SC FW FW SC FW FW FW FW CL CL FW SC SC SC PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Heat index 82 Max heat 86 87 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 56 74 57 68 57 69 57 72 Temp 62 56 71 70 62 57 65 64 59 57 66 66 59 57 69 68 Dewpt 43 39 40 43 48 50 51 51 52 51 50 48 47 48 45 45 PWind dir N N E E NE N NW NW Wind char LT LT LT GN LT GN LT GN Avg clouds SC FW SC SC B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 0 5 60 80 90 60 40 30 Rain shwrs S L L D D L L L C C C C $$ WVZ052-172000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 913 AM EDT Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 57 74 53 75 Temp 77 82 82 74 67 63 59 62 68 72 74 70 63 58 54 59 67 73 74 68 Dewpt 59 53 53 52 51 50 49 49 49 50 50 49 49 48 47 48 48 48 47 46 RH 54 37 37 46 56 62 69 62 51 46 43 47 60 69 77 67 50 41 38 45 Wind dir W W W W W W W W W W W NW NW NW NW NW NW NW NW NW Wind spd 13 14 16 10 8 6 8 10 13 17 17 11 9 8 8 10 11 12 12 8 Wind gust 27 28 25 27 28 Clouds FW FW FW SC SC B1 SC FW SC SC SC FW FW FW FW FW FW SC SC SC PoP 12hr 10 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 48 69 52 63 51 64 48 67 Temp 54 52 66 64 56 54 61 60 54 54 62 61 51 53 64 63 Dewpt 43 39 41 44 47 48 52 51 50 48 48 46 45 45 46 45 PWind dir NW NE E E NE NW NW NW Wind char LT LT LT GN LT GN LT GN Avg clouds SC SC SC B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC PoP 12hr 5 10 70 90 80 70 40 50 Rain shwrs C L D D D L L L C S C C Tstms S $$ VAZ506-172000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 913 AM EDT Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 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 86 60 76 56 76 Temp 78 84 84 76 70 65 62 63 70 74 76 71 65 60 57 59 69 74 76 71 Dewpt 65 61 58 58 55 54 53 54 54 54 55 54 53 53 51 52 53 53 52 52 RH 64 46 41 54 59 68 72 72 57 50 48 55 65 78 80 78 57 48 43 51 Wind dir W W W W W W W W W W W NW NW NW NW NW NW NW NW NW Wind spd 11 13 13 10 8 6 6 9 13 16 16 10 9 6 8 10 11 12 11 8 Wind gust 24 24 27 27 Clouds FW FW FW SC FW FW SC FW FW SC FW FW FW FW FW FW FW SC SC SC PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 84 84 Max heat 84 86 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 69 54 62 53 63 50 67 Temp 56 53 67 65 57 55 60 60 55 54 62 61 53 54 65 64 Dewpt 47 43 45 48 50 53 56 55 54 53 53 51 48 50 50 50 PWind dir N N E E N NW NW NW Wind char LT LT LT GN LT GN LT GN Avg clouds SC SC SC SC B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC SC PoP 12hr 5 10 70 90 80 60 40 30 Rain shwrs C L L D D L C L C S S C Tstms S $$ VAZ037-172000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 913 AM EDT Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 60 80 55 80 Temp 78 84 85 79 70 65 61 64 71 78 79 73 66 60 56 60 72 78 80 73 Dewpt 60 56 53 53 51 51 51 52 51 50 49 50 48 48 49 52 52 50 50 52 RH 54 38 33 41 51 60 70 65 49 37 35 44 52 64 77 75 49 37 35 48 Wind dir SW W W W SW SW SW SW W W W NW NW NW NW NW NW NW NW N Wind spd 11 13 13 10 8 6 5 8 10 11 11 8 5 4 2 2 4 6 6 5 Wind gust 21 25 26 20 21 Clouds FW CL FW FW FW FW SC SC SC FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 80 Max heat 83 83 80 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 69 56 67 55 67 48 69 Temp 59 56 67 65 59 57 64 63 57 57 65 63 52 53 67 64 Dewpt 48 45 48 51 51 53 54 54 51 50 48 46 43 45 44 45 PWind dir N E E NE N NW NW NW Wind char LT LT LT LT LT GN LT GN Avg clouds SC SC SC B1 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC SC PoP 12hr 10 20 70 90 60 50 30 30 Rain shwrs S L L L D L C C C C S C Tstms S S S $$ MDZ003-172000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 913 AM EDT Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 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 56 73 53 74 Temp 76 80 80 73 65 62 58 61 66 71 72 68 61 56 53 57 66 71 73 67 Dewpt 62 57 56 56 53 51 50 51 51 52 52 51 50 49 48 49 50 50 49 47 RH 62 45 44 55 65 67 75 70 58 51 49 54 67 77 83 75 56 47 43 49 Wind dir W W W W W W W W W W W NW NW NW NW NW NW NW NW NW Wind spd 13 13 16 10 8 6 8 10 13 16 17 10 9 6 6 9 10 12 11 8 Wind gust 27 28 20 20 26 28 28 23 Clouds FW FW FW SC SC B1 FW FW B1 SC SC FW FW FW FW CL FW SC SC SC PoP 12hr 10 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 80 80 Max heat 80 82 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 47 68 52 59 51 61 48 65 Temp 52 51 65 64 55 54 57 57 54 52 59 59 51 53 62 61 Dewpt 42 40 43 46 46 50 53 51 51 50 51 48 47 47 49 47 PWind dir NW N E E NE NW NW NW Wind char LT LT LT GN LT GN LT GN Avg clouds SC FW SC SC B2 B2 B2 B2 OV B2 B2 B2 B1 B1 SC SC PoP 12hr 5 10 70 90 90 70 50 50 Rain shwrs C L D D D L L L C S C C Tstms S $$ MDZ017-172000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 913 AM EDT Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 65 81 62 81 Temp 80 86 88 81 73 69 67 68 76 79 80 75 69 65 62 65 73 78 80 74 Dewpt 64 63 62 60 58 56 56 56 54 55 55 56 54 54 52 53 54 54 54 55 RH 58 46 42 49 59 63 68 65 46 44 42 52 59 68 70 65 51 43 41 51 Wind dir SW W W W W NW NW W W W W NW NW NW NW NW NW NW NW NW Wind spd 12 13 13 10 8 6 8 9 13 14 13 10 9 8 9 10 10 11 10 6 Clouds SC CL CL FW FW FW FW FW FW FW FW FW FW CL CL CL FW SC SC SC PoP 12hr 10 5 0 0 0 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Tstms Heat index 82 87 88 82 80 80 Max heat 87 88 80 80 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 72 57 70 57 69 55 71 Temp 64 58 70 66 61 60 68 65 59 60 68 65 58 58 69 66 Dewpt 51 46 45 46 51 54 57 58 56 56 55 53 50 50 51 52 PWind dir N N E E N NW NW NW Wind char GN LT LT GN GN GN GN GN Avg clouds SC SC SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC PoP 12hr 5 5 60 80 80 50 30 20 Rain shwrs C L L D D C C C C S S S Tstms S S $$ WVZ502-172000- Petersburg WV 38.99N 79.15W Elev. 963 ft 913 AM EDT Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 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 54 75 52 77 Temp 75 81 81 71 64 59 56 57 66 73 74 68 61 55 53 56 67 75 76 69 Dewpt 56 52 53 54 52 50 49 49 49 50 50 51 50 50 49 50 49 49 48 50 RH 52 37 38 55 65 72 77 75 54 44 43 54 67 83 86 80 52 40 37 51 Wind dir NW W W S W W SW W W W W NW NW NW W NW NW NW NW NW Wind spd 12 18 17 10 9 6 6 9 12 16 13 6 4 2 2 2 5 9 8 4 Wind gust 25 32 31 23 19 25 27 25 17 Clouds FW CL FW FW SC SC B1 SC SC SC FW FW SC SC SC SC SC SC SC SC PoP 12hr 10 10 5 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 47 73 51 66 48 63 45 66 Temp 52 50 70 66 55 53 64 61 52 49 61 58 48 48 63 60 Dewpt 47 43 48 51 51 52 55 53 51 48 48 46 45 45 46 45 PWind dir N NE E SE NW NW W W Wind char LT LT LT LT LT LT LT GN Avg clouds SC SC SC B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 5 30 80 90 80 70 40 50 Rain shwrs C L D D D D C C L C S C C Tstms S S S S $$ MDZ014-172000- Annapolis MD 38.99N 76.49W Elev. 7 ft 913 AM EDT Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 63 75 59 75 Temp 76 82 82 78 71 68 65 66 70 73 75 72 67 63 60 62 68 73 74 71 Dewpt 64 62 60 58 58 56 54 53 51 52 53 53 53 53 52 51 51 51 51 50 RH 66 51 47 50 63 65 68 63 51 48 46 51 61 70 75 67 54 46 44 47 Wind dir SW W W W W NW W W W W W W NW NW NW NW NW NW NW NW Wind spd 10 12 11 9 9 8 8 10 13 14 14 11 10 9 9 9 10 12 11 9 Wind gust 25 Clouds FW CL FW SC FW FW FW FW FW FW FW FW FW FW CL CL FW SC SC SC PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Heat index 83 82 Max heat 83 83 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 69 56 64 56 65 55 68 Temp 59 57 66 66 59 58 62 62 58 57 64 63 57 57 66 65 Dewpt 47 43 43 46 51 52 53 54 55 54 52 50 50 50 48 48 PWind dir N N E E NE N NW NW Wind char GN LT LT GN GN GN GN GN Avg clouds SC FW SC SC B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 5 5 50 80 80 60 40 30 Rain shwrs S C L D D L L L C S C C $$