Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
336 FOUS51 KLWX 040840 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 439 AM EDT Thu Sep 4 2025 VAZ054-042000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 439 AM EDT Thu Sep 4 2025 Date Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 66 89 72 89 Temp 66 66 78 85 84 75 72 69 68 68 79 85 88 83 78 76 74 74 82 86 83 75 Dewpt 59 59 60 59 60 64 65 66 65 65 66 63 62 63 65 67 66 66 67 66 66 67 RH 78 78 54 41 44 69 79 90 90 90 64 48 42 51 64 74 76 76 61 51 57 76 Wind dir S S S S S SW S S S S SW SW SW S S S S S S SW W NW Wind spd 8 9 12 14 16 12 9 8 5 6 9 11 11 9 8 9 8 8 9 10 11 9 Clouds FW FW FW FW B1 B1 B1 FW SC SC FW FW FW FW FW FW FW SC SC B2 B2 B2 PoP 12hr 50 40 0 0 60 QPF 12hr 0.25 0.05 0 0 0.20 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L L Tstms C C S C S Heat index 85 84 86 88 84 85 88 85 Max heat 85 85 86 88 82 88 88 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 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 75 57 74 56 77 58 77 Temp 67 63 71 68 62 59 71 67 61 58 73 69 62 60 74 69 Dewpt 62 55 51 51 50 49 46 47 50 50 48 50 54 54 51 51 PWind dir NW NW NW N N NE NE NE Wind char GN GN LT LT LT LT LT GN Avg clouds OV OV B1 SC SC SC FW FW FW FW FW SC SC SC SC SC PoP 12hr 60 20 5 0 0 0 0 5 Rain shwrs L C S Tstms S $$ MDZ013-042000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 439 AM EDT Thu Sep 4 2025 Date Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 64 88 70 89 Temp 62 63 76 84 82 72 68 66 65 66 77 85 87 81 74 71 71 72 82 86 80 72 Dewpt 59 59 61 62 64 68 67 66 65 66 68 67 66 68 67 67 66 68 69 70 71 70 RH 90 87 60 48 55 87 97100100100 74 55 50 65 79 87 84 87 65 59 74 93 Wind dir S S S S S S S SW SW SW SW S S S S S S S S S W NW Wind spd 4 5 11 12 12 8 5 3 3 3 6 8 9 5 5 4 4 4 5 8 9 5 Clouds FW FW FW FW B1 B2 B2 SC SC SC FW FW FW FW FW FW FW FW SC B2 B2 B2 PoP 12hr 50 50 0 0 60 QPF 12hr 0.20 0.20 0 0 0.26 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L L Tstms C C S C S Heat index 85 83 88 89 84 85 91 83 Max heat 85 86 88 89 91 90 Coast Flood Y A A Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 74 55 74 54 76 56 76 Temp 64 61 71 66 58 57 71 66 58 58 73 67 59 58 74 68 Dewpt 63 57 55 54 51 51 50 51 51 52 51 53 55 55 53 54 PWind dir NW NW NW N N NE NE NE Wind char LT LT LT LT LT LT LT LT Avg clouds OV OV B1 SC SC SC FW FW FW FW FW FW SC SC SC SC PoP 12hr 60 20 5 0 0 0 0 5 Rain shwrs L C S Tstms S $$ MDZ011-042000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 439 AM EDT Thu Sep 4 2025 Date Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 68 91 73 90 Temp 65 64 78 85 84 75 73 72 70 68 81 87 90 85 80 77 75 74 84 86 83 77 Dewpt 58 58 59 59 61 63 65 65 65 64 65 64 62 64 65 66 66 66 66 67 67 66 RH 78 81 52 41 46 66 76 79 84 87 58 46 39 50 60 69 74 76 55 53 59 69 Wind dir S S S S S S S SW SW SW SW S S S S S S S S S W NW Wind spd 4 6 11 12 12 10 5 4 3 3 8 9 9 6 6 4 4 4 5 9 9 5 Clouds FW FW CL SC B2 B2 B2 SC SC SC FW FW FW FW FW FW FW FW SC B2 B2 B2 PoP 12hr 50 50 0 0 60 QPF 12hr 0.14 0.14 0 0 0.29 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S L L L Tstms C C S C S Heat index 85 84 83 88 90 86 82 86 89 86 Max heat 85 86 88 90 83 89 89 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 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 59 76 58 78 59 79 Temp 69 63 73 71 64 60 73 70 63 59 75 71 64 60 76 72 Dewpt 60 55 51 50 49 48 47 46 49 48 48 49 53 52 51 51 PWind dir NW NW NW N N NE NE NE Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 SC SC SC FW FW FW FW FW SC SC SC SC SC PoP 12hr 60 20 5 0 0 0 0 5 Rain shwrs L C S Tstms S $$ WVZ052-042000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 439 AM EDT Thu Sep 4 2025 Date Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 58 87 63 82 Temp 57 62 78 81 75 68 65 63 60 60 75 84 86 79 71 68 65 66 78 80 76 70 Dewpt 54 56 57 61 62 63 63 62 60 60 62 60 59 60 62 62 62 63 64 65 63 62 RH 90 81 48 51 64 84 93 97100100 64 44 40 52 73 81 90 90 62 60 64 76 Wind dir S S S S SW S S SW SW SW S SW SW S S SW SW SW SW W NW NW Wind spd 4 4 9 12 10 5 2 2 2 2 5 8 8 3 3 3 2 2 4 6 9 6 Clouds FW CL FW B1 B2 B2 B1 SC B1 SC FW FW FW FW FW SC B1 SC B2 B2 B2 B2 PoP 12hr 80 30 0 5 70 QPF 12hr 0.14 0.01 0 0 0.22 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S L L C Tstms C C S S C C S Obvis PF PF PF Heat index 82 84 82 Max heat 82 82 84 85 82 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 75 48 73 46 75 49 76 Temp 61 57 71 64 54 53 70 63 53 51 72 64 54 53 74 66 Dewpt 55 52 47 46 46 46 45 45 46 46 47 48 49 49 50 50 PWind dir NW NW NW NW N E NE E Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B1 SC SC SC FW FW FW FW FW FW FW FW SC FW SC PoP 12hr 40 10 5 0 0 0 0 5 Rain shwrs C C Tstms S $$ VAZ506-042000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 439 AM EDT Thu Sep 4 2025 Date Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 62 88 68 88 Temp 64 63 77 84 81 71 67 66 64 65 76 85 87 81 74 71 69 70 81 86 78 70 Dewpt 57 58 62 64 65 68 67 66 64 65 69 67 65 66 66 66 65 67 71 70 71 70 RH 78 84 60 51 58 90100100100100 79 55 48 60 76 84 87 90 72 59 79100 Wind dir S S S S SW S S S S S SW SW SW S S S S S S SW W NW Wind spd 6 6 11 13 12 8 5 3 3 3 6 9 9 5 5 5 4 4 5 8 9 5 Clouds FW FW FW SC B2 B2 B1 SC SC B1 FW FW FW FW FW FW FW SC SC B2 B2 OV PoP 12hr 60 40 0 0 70 QPF 12hr 0.21 0.01 0 0 0.26 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L C L L C Tstms S C S C C S Heat index 85 83 88 89 83 85 91 Max heat 85 87 88 89 91 88 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 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 74 53 73 51 76 52 77 Temp 63 59 71 66 56 55 71 64 54 53 74 65 56 55 74 66 Dewpt 62 57 55 53 50 50 50 50 50 50 51 52 53 54 54 54 PWind dir NW NW NW N N NE NE NE Wind char LT LT LT LT LT LT LT LT Avg clouds OV B2 B1 SC SC SC FW FW FW FW FW FW SC SC SC SC PoP 12hr 50 20 5 0 0 0 0 5 Rain shwrs C C S Tstms S $$ VAZ037-042000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 439 AM EDT Thu Sep 4 2025 Date Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 61 87 65 86 Temp 59 61 75 82 78 70 66 64 63 63 76 85 86 80 71 69 67 67 80 85 81 73 Dewpt 56 57 60 61 62 63 64 63 62 63 65 62 62 63 64 64 63 65 66 65 66 67 RH 90 87 60 49 58 78 93 97 97100 69 46 45 56 79 84 87 93 62 51 60 81 Wind dir S S S S SW S SW S SW S SW SW SW S S SW SW SW S SW W W Wind spd 3 4 8 12 12 8 4 3 2 2 5 10 9 5 4 3 3 3 5 9 8 4 Clouds FW FW FW SC B1 B2 SC FW SC FW FW FW FW FW FW FW SC FW SC B1 B1 B2 PoP 12hr 50 20 0 0 50 QPF 12hr 0.27 0.03 0 0 0.23 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C C Tstms S C S S C Obvis PF Heat index 83 86 86 81 82 87 83 Max heat 83 83 86 87 87 87 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 73 51 73 49 75 52 75 Temp 66 60 71 64 56 53 71 62 54 52 72 64 55 54 73 65 Dewpt 62 57 52 52 49 48 46 48 47 48 49 51 50 51 51 53 PWind dir N NE N N N NE N NE Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 SC SC SC FW FW FW FW FW FW SC SC SC SC PoP 12hr 50 20 10 0 0 0 5 5 Rain shwrs C C S S $$ MDZ003-042000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 439 AM EDT Thu Sep 4 2025 Date Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 60 87 64 82 Temp 64 65 79 81 75 68 65 64 62 62 74 83 86 79 70 67 65 67 78 80 74 68 Dewpt 57 56 59 64 65 65 64 63 61 62 65 63 61 62 64 64 63 65 67 67 67 64 RH 78 73 50 56 71 90 97 97 97100 74 51 43 56 81 90 93 93 69 65 79 87 Wind dir S S S S SW S S S S S S SW SW S S S S SW SW W W NW Wind spd 5 5 11 13 9 6 3 2 2 3 6 9 9 5 4 3 2 2 5 8 9 6 Clouds FW CL FW B1 B2 B2 B1 B1 SC SC FW FW FW FW FW SC SC B1 B1 B2 B2 B2 PoP 12hr 80 40 0 10 70 QPF 12hr 0.41 0.02 0 0 0.19 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C C L L C Tstms C C S S C C S Obvis PF PF Heat index 83 84 86 82 Max heat 83 84 84 86 82 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 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 49 74 48 76 49 78 Temp 61 57 71 64 54 53 71 63 53 52 72 64 54 54 74 66 Dewpt 57 53 50 48 48 48 48 48 47 48 49 49 49 50 52 51 PWind dir NW NW NW NW N E E E Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B1 FW SC FW FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 40 10 5 0 0 0 0 5 Rain shwrs C C Tstms S $$ MDZ017-042000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 439 AM EDT Thu Sep 4 2025 Date Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 68 86 72 87 Temp 66 69 78 82 82 75 72 70 68 71 79 84 85 80 76 74 73 75 81 84 83 74 Dewpt 61 62 61 64 64 66 65 65 64 66 67 68 68 69 68 67 66 68 69 70 70 71 RH 84 78 56 55 55 74 79 84 87 84 67 59 57 69 76 79 79 79 67 63 65 90 Wind dir S S S S S S S SW SW SW S S S S S S S S S S S S Wind spd 8 9 11 13 16 13 9 9 8 6 8 10 10 10 9 9 9 8 9 10 10 9 Clouds FW FW FW CL FW SC B1 FW FW CL CL FW FW SC FW CL FW FW SC B1 B1 B1 PoP 12hr 20 30 0 0 30 QPF 12hr 0 0 0 0 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C C Tstms S S S Heat index 83 83 87 88 83 84 88 87 Max heat 83 84 87 89 88 88 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 73 60 73 59 76 60 75 Temp 68 66 71 67 64 64 71 66 62 63 74 68 63 64 73 68 Dewpt 67 60 57 56 53 54 52 52 54 56 53 55 57 58 56 56 PWind dir NE N N N NE NE NE NE Wind char GN GN LT GN LT GN LT GN Avg clouds B2 B2 B2 B1 SC SC SC FW FW FW SC SC SC B1 SC SC PoP 12hr 50 30 20 5 0 0 5 10 Rain shwrs C C C S S Tstms S $$ WVZ502-042000- Petersburg WV 38.99N 79.15W Elev. 963 ft 439 AM EDT Thu Sep 4 2025 Date Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 88 62 83 Temp 57 60 79 79 76 68 62 60 58 58 76 85 87 78 68 65 63 64 78 80 77 69 Dewpt 54 55 60 62 64 63 62 60 57 58 62 60 60 62 62 61 60 61 66 66 65 62 RH 90 84 52 56 66 84100100 96100 62 43 40 58 81 87 90 90 67 62 67 78 Wind dir S E SW W S SE SW S SW S SW SW SW S SW SW SW SW SW W W W Wind spd 3 3 8 10 6 4 3 2 2 2 6 8 6 4 4 4 3 2 4 6 6 5 Clouds SC SC B1 B2 B2 B2 SC FW FW SC FW FW FW FW SC SC B1 B1 B1 OV B2 B2 PoP 12hr 80 30 0 20 70 QPF 12hr 0.14 0.01 0 0 0.15 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C S S S C C L L C Tstms S C C S S C S Obvis PF PF PF PF Heat index 85 87 82 Max heat 81 81 85 88 82 82 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 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 75 45 74 45 77 46 79 Temp 58 52 72 62 50 47 71 61 48 47 73 64 50 49 76 65 Dewpt 54 50 48 47 45 44 46 48 45 44 49 51 47 46 51 53 PWind dir NW NW W N W SE S E Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B1 SC FW SC FW FW FW FW FW FW FW FW SC FW FW PoP 12hr 40 10 5 0 0 0 0 5 Rain shwrs C S $$ MDZ014-042000- Annapolis MD 38.99N 76.49W Elev. 7 ft 439 AM EDT Thu Sep 4 2025 Date Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 67 85 71 84 Temp 67 67 77 80 80 74 70 69 68 69 77 83 85 80 75 75 73 74 80 83 80 73 Dewpt 62 62 61 64 64 66 67 67 67 66 67 67 66 68 69 69 68 68 69 69 68 68 RH 84 84 58 58 58 76 90 93 97 90 71 59 53 67 82 82 84 82 69 63 67 84 Wind dir S S S S S S S SW SW SW S S S S S S S S S S S W Wind spd 8 9 12 14 14 10 8 5 5 4 6 10 10 8 8 6 6 5 8 10 10 6 Clouds FW FW CL FW B1 B1 B2 FW FW FW FW FW FW FW FW FW FW FW SC B1 B1 B2 PoP 12hr 40 50 0 0 50 QPF 12hr 0.01 0.14 0 0 0.23 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C L Tstms S C S C S Heat index 82 82 86 87 83 83 87 83 Max heat 82 83 86 87 87 87 Coast Flood Y A A Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 72 58 72 57 74 59 74 Temp 68 64 70 68 63 60 70 67 62 60 71 69 63 61 71 69 Dewpt 65 58 55 54 53 52 50 50 54 53 51 53 57 56 54 55 PWind dir NW NW NW N NE NE NE NE Wind char LT GN LT LT LT LT LT LT Avg clouds B2 B2 B2 SC SC SC FW FW FW FW FW SC SC SC SC SC PoP 12hr 60 20 10 0 0 0 5 5 Rain shwrs L C S Tstms S $$