Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
761 FOUS51 KLWX 311739 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 139 PM EDT Sun Aug 31 2025 VAZ054-312000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 139 PM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 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 58 80 61 80 Temp 77 77 70 64 60 58 60 74 78 78 72 68 64 62 64 72 77 77 72 Dewpt 46 45 47 49 51 51 53 53 50 49 53 56 57 56 56 55 52 50 51 RH 33 32 44 58 72 77 78 48 37 36 51 65 78 81 75 55 42 39 48 Wind dir NE NE E NE N N N NE NE NE E E NE N N NE NE E SE Wind spd 8 9 5 4 3 4 5 9 11 10 8 5 3 4 5 5 6 6 5 Clouds B1 B1 FW FW FW FW CL FW FW FW FW FW FW FW FW FW SC B1 SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 61 79 64 84 67 82 64 83 Temp 65 65 78 72 67 67 81 74 70 69 79 74 69 68 80 74 Dewpt 55 55 53 54 59 60 59 62 65 65 62 61 60 58 56 55 PWind dir S S S S S SW SW W Wind char LT LT GN GN GN GN LT GN Avg clouds B1 SC SC B1 B1 B1 SC B1 B1 B1 SC B1 SC SC FW SC PoP 12hr 0 5 10 30 50 30 10 10 Rain shwrs C C C S C Tstms S S S $$ MDZ013-312000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 139 PM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 56 80 59 78 Temp 76 76 69 62 59 56 60 73 77 77 70 65 61 59 61 71 76 77 70 Dewpt 46 47 51 52 52 53 56 55 55 54 57 58 58 56 58 57 55 54 55 RH 34 36 53 70 78 90 87 53 47 45 63 78 90 90 90 61 48 45 59 Wind dir NE NE NE NW N N N NE E E E E NE N N NE NE E SE Wind spd 8 8 3 2 2 2 3 6 8 8 5 3 2 2 3 4 4 4 2 Clouds B1 B1 SC SC SC FW FW CL FW SC FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 78 63 82 64 80 62 81 Temp 63 62 77 70 65 65 80 72 67 66 77 72 66 65 78 72 Dewpt 57 57 56 58 60 62 63 64 65 65 64 63 60 60 58 58 PWind dir S S S S S S SW W Wind char LT LT LT GN LT LT LT LT Avg clouds SC SC SC B1 SC B1 SC B1 B2 B1 B1 B1 SC FW FW SC PoP 12hr 0 5 10 30 60 30 10 10 Rain shwrs C L C C C Tstms S C S $$ MDZ011-312000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 139 PM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 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 61 83 63 82 Temp 78 79 73 69 63 62 64 77 79 80 74 71 65 64 66 75 78 80 74 Dewpt 45 46 47 50 50 52 53 52 51 50 53 56 56 56 55 53 52 50 51 RH 31 31 40 51 62 70 67 42 38 35 48 59 73 75 68 46 40 35 44 Wind dir NE NE NE N N N N NE E E E E NE N N NE E E SE Wind spd 6 6 2 2 1 2 3 5 8 8 5 2 2 2 2 4 4 4 2 Clouds B1 B1 SC B1 SC FW CL CL SC B1 FW FW FW FW FW FW SC B1 SC PoP 12hr 0 0 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 80 80 Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 64 81 66 85 69 84 66 84 Temp 68 67 78 73 70 70 82 75 72 71 81 75 71 70 81 74 Dewpt 56 54 53 53 58 59 59 61 65 63 62 61 59 58 56 55 PWind dir S S S S S S SW W Wind char LT LT LT GN LT LT LT LT Avg clouds SC SC SC B1 SC B1 SC B1 B2 B1 B1 B1 SC FW FW SC PoP 12hr 0 5 10 30 60 30 10 10 Rain shwrs C L C C C Tstms S C S $$ WVZ052-312000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 139 PM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 48 78 54 78 Temp 75 76 66 57 52 49 54 71 77 76 69 62 59 56 57 71 76 76 69 Dewpt 45 44 46 48 47 47 49 51 49 49 50 52 53 52 54 54 50 49 51 RH 34 32 48 72 83 93 83 49 37 39 51 70 80 86 90 55 40 39 53 Wind dir NE NE NE N N N N NE E E E NE N N N NE E E SE Wind spd 6 8 4 2 2 2 3 5 5 6 3 2 0 1 1 2 3 2 2 Clouds SC SC FW FW FW FW CL CL SC B1 SC SC SC FW FW FW SC SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 76 58 81 60 80 56 79 Temp 58 58 75 69 62 62 79 69 65 63 76 70 61 60 77 68 Dewpt 52 53 54 54 55 57 60 62 62 60 58 56 56 55 53 51 PWind dir S S S S S SW SW W Wind char LT LT LT GN LT LT LT LT Avg clouds SC SC SC B1 B1 B1 B1 B1 B2 B1 B1 B1 FW SC FW FW PoP 12hr 0 10 20 50 50 30 10 10 Rain shwrs S C C C C C Tstms S S S $$ VAZ506-312000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 139 PM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 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 52 79 56 79 Temp 76 76 68 61 56 54 55 72 77 77 69 64 60 57 58 71 77 77 70 Dewpt 47 47 51 51 51 50 53 57 54 54 55 56 58 56 57 58 55 54 54 RH 36 36 54 70 83 86 93 59 45 45 61 75 93 96 96 63 47 45 57 Wind dir N NE NE N N N N NE NE NE E E N N N NE NE NE SE Wind spd 6 8 4 2 2 3 4 5 6 6 4 2 1 2 2 3 4 3 3 Clouds SC SC SC FW FW FW FW FW SC SC SC SC FW FW FW FW SC B1 B1 PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 77 61 83 63 80 60 82 Temp 60 59 77 69 64 63 80 72 66 65 77 72 64 62 78 71 Dewpt 55 56 57 58 59 61 64 66 65 65 64 62 59 59 58 57 PWind dir S S S S S SW SW W Wind char LT LT LT GN LT LT LT LT Avg clouds SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 SC FW FW SC PoP 12hr 0 5 10 40 50 30 10 5 Rain shwrs C C C S C Tstms S S $$ VAZ037-312000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 139 PM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 51 77 54 77 Temp 74 74 66 58 54 51 54 70 74 74 67 61 57 56 57 70 75 74 67 Dewpt 49 48 50 49 48 48 50 51 50 50 52 52 52 53 54 54 52 52 54 RH 41 40 56 72 80 89 86 51 43 43 59 72 83 90 90 57 45 46 63 Wind dir NE NE NE N N N N NE NE NE NE N N NW N NE NE E SE Wind spd 6 6 4 2 2 3 4 6 8 8 4 2 2 2 2 3 5 4 2 Clouds SC SC CL CL FW FW CL FW SC FW FW FW FW SC FW FW B1 B1 SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 75 58 80 61 80 58 81 Temp 58 59 73 68 61 61 78 70 65 64 78 70 63 62 78 70 Dewpt 53 54 54 56 56 58 61 62 63 63 60 59 57 57 54 55 PWind dir SW S S S SW SW SW W Wind char LT LT LT GN LT LT LT LT Avg clouds SC SC SC B1 B1 B1 SC B1 B1 B1 SC SC FW SC FW FW PoP 12hr 0 10 20 40 50 20 10 10 Rain shwrs S S C C S S S Tstms C S S $$ MDZ003-312000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 139 PM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 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 77 51 80 55 79 Temp 75 76 67 58 54 51 56 72 77 76 69 63 59 56 58 72 76 76 69 Dewpt 46 45 50 49 49 48 51 54 52 52 52 53 54 53 55 56 54 52 54 RH 36 33 54 72 83 89 83 53 42 43 55 70 83 90 90 57 46 43 59 Wind dir NE NE NE NE N N N NE NE NE NE E NE N N NE E E SE Wind spd 5 6 4 3 3 4 4 5 6 6 4 2 2 2 2 2 3 3 2 Clouds SC SC FW FW FW CL CL CL SC SC SC SC FW FW FW FW B1 B1 SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 77 60 82 60 78 57 79 Temp 59 58 76 69 63 63 79 70 64 63 75 69 61 60 76 68 Dewpt 53 54 56 55 56 58 62 64 63 61 60 56 56 55 55 52 PWind dir SE S S S S SW SW W Wind char LT LT LT GN LT LT LT LT Avg clouds SC SC SC B1 B1 B1 B1 B2 B2 B1 B1 B1 FW FW FW FW PoP 12hr 0 10 20 60 60 30 10 10 Rain shwrs S L L C C C Tstms S S S $$ MDZ017-312000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 139 PM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 60 78 61 76 Temp 74 76 68 64 63 60 64 72 76 75 70 66 63 62 65 71 74 75 70 Dewpt 51 52 55 56 56 57 59 58 58 57 58 58 59 59 61 59 57 56 57 RH 44 43 63 75 78 90 84 61 54 54 66 75 87 90 87 66 55 52 63 Wind dir N N NE E NE NE NE NE NE NE E E NE NE NE N N N E Wind spd 10 11 5 5 5 6 9 10 10 10 9 6 5 6 8 8 6 5 3 Clouds B2 B1 SC SC CL CL CL FW SC SC FW CL FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 78 65 80 67 81 66 82 Temp 64 65 76 70 68 69 79 73 70 71 79 73 69 69 80 72 Dewpt 60 61 59 60 62 64 64 66 67 68 67 67 64 64 61 62 PWind dir S S S S S S S SW Wind char LT LT LT GN GN GN LT LT Avg clouds SC SC SC SC SC SC FW SC B1 B1 SC SC FW FW FW FW PoP 12hr 0 5 5 20 40 30 10 5 Rain shwrs S C C S C Tstms S $$ WVZ502-312000- Petersburg WV 38.99N 79.15W Elev. 963 ft 139 PM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 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 77 46 78 50 78 Temp 75 77 64 55 50 47 48 69 76 76 67 58 54 51 52 69 76 75 67 Dewpt 50 50 51 49 47 45 46 53 51 52 52 51 50 48 49 55 52 52 55 RH 41 39 63 80 89 93 93 57 42 43 59 77 86 89 89 61 43 45 65 Wind dir NE NE NE NW NW NW NW NE NE NE E W SW SW SW E E E SE Wind spd 3 4 3 2 2 2 2 2 5 5 3 2 2 2 1 2 2 2 2 Clouds SC FW FW FW CL FW FW FW SC SC SC SC FW FW SC SC B1 B1 B1 PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF PF Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 76 56 82 56 79 54 80 Temp 56 54 75 68 60 58 78 69 60 58 76 68 58 56 77 67 Dewpt 52 52 56 58 56 56 61 63 60 57 55 54 53 52 54 54 PWind dir S S S SW SW SW SW W Wind char LT LT LT LT LT LT LT LT Avg clouds B1 SC B1 B2 B1 SC B1 B2 B2 B1 B1 SC SC SC SC SC PoP 12hr 5 30 30 70 60 30 10 10 Rain shwrs C C S C L L C C S Tstms S C S S $$ MDZ014-312000- Annapolis MD 38.99N 76.49W Elev. 7 ft 139 PM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 60 77 61 75 Temp 73 76 71 64 61 60 63 72 74 75 72 67 64 63 65 70 73 75 71 Dewpt 49 49 51 56 57 57 58 56 56 54 57 58 58 58 59 57 56 53 55 RH 43 39 49 75 87 90 84 57 53 48 59 73 81 84 81 63 55 46 57 Wind dir NE NE NE SE E N N NE NE NE E E NE NE N NE NE E SE Wind spd 9 8 4 2 1 3 5 9 10 10 8 5 2 4 5 5 6 5 2 Clouds B1 B1 SC SC SC FW CL CL FW SC FW FW CL FW FW FW SC SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 76 64 79 67 79 65 79 Temp 65 65 75 71 68 68 77 74 70 70 76 74 69 68 76 73 Dewpt 59 58 57 57 62 62 63 64 66 65 66 63 63 61 59 59 PWind dir S S S S S S SW SW Wind char LT LT LT GN GN GN LT LT Avg clouds SC SC SC SC SC B1 SC B1 B2 B1 B1 B1 FW FW FW SC PoP 12hr 0 5 10 30 60 30 10 10 Rain shwrs C L C C C Tstms S S $$