Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
256 FOUS51 KLWX 040837 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 437 AM EDT Mon Aug 4 2025 VAZ054-042000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 437 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 68 85 70 82 Temp 67 69 79 83 84 79 73 71 70 71 79 83 83 79 75 73 72 73 78 80 80 77 Dewpt 59 60 59 57 56 58 60 61 61 62 62 60 60 61 62 63 64 64 64 62 63 64 RH 75 73 50 41 38 49 64 71 73 73 56 46 46 54 64 71 76 73 62 54 56 64 Wind dir N N NE E E SE S S N N E E SE SE SE E NE NE E E E E Wind spd 2 4 5 5 8 5 3 2 2 2 3 6 8 6 5 4 5 5 8 10 10 10 Clouds FW FW FW CL FW SC SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 0 0 5 10 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C Heat index 83 83 81 81 Max heat 82 83 83 84 81 81 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 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 69 82 67 82 68 84 71 87 Temp 72 72 79 76 71 71 79 77 71 71 80 78 74 74 83 81 Dewpt 66 67 66 65 65 65 63 64 66 66 66 67 70 70 70 70 PWind dir E E E E E E E E Wind char LT GN LT GN LT LT LT LT Avg clouds B2 B1 B1 B1 SC SC SC B1 SC B1 B1 B1 B1 SC SC SC PoP 12hr 30 20 20 20 10 20 10 20 Rain shwrs C S S S S S S S S Tstms S S S S $$ MDZ013-042000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 437 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 67 86 70 83 Temp 65 67 81 84 84 78 72 69 67 70 81 83 83 79 75 73 71 73 78 81 81 77 Dewpt 59 60 60 59 58 60 61 61 60 63 64 63 62 64 64 64 66 66 67 65 65 66 RH 81 78 49 43 41 54 68 76 78 78 56 51 49 60 69 73 84 79 69 58 58 69 Wind dir NW N NE E E SE S W NW N E E SE SE SE E E NE E E E E Wind spd 1 2 3 4 4 2 2 1 1 2 2 5 5 4 2 2 2 4 5 6 8 5 Clouds CL CL CL SC FW SC SC SC B1 B2 B1 B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 0 0 0 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Heat index 82 84 84 83 84 84 83 83 Max heat 84 84 84 84 83 83 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 83 66 83 66 84 70 86 Temp 71 71 80 75 69 69 80 76 69 70 80 77 72 72 83 79 Dewpt 66 68 67 65 65 65 65 65 66 67 67 69 70 71 72 73 PWind dir E E E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B1 B1 B1 SC SC SC SC SC SC SC B1 B1 SC SC SC PoP 12hr 20 20 10 10 10 10 10 20 Rain shwrs S S S S S Tstms S S $$ MDZ011-042000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 437 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 91 73 91 74 88 Temp 69 72 85 88 89 83 80 77 74 74 86 88 88 84 80 78 76 74 83 84 85 81 Dewpt 58 57 57 56 56 57 59 59 60 61 61 60 60 60 62 63 64 64 63 62 63 63 RH 68 59 39 34 33 41 49 54 62 64 43 39 39 44 54 60 66 71 51 48 48 54 Wind dir NW N NE E E SE S NW N N E E SE SE SE E E NE E E E E Wind spd 1 2 3 4 4 2 1 1 1 1 2 5 5 3 2 2 2 3 5 6 8 5 Clouds CL CL FW SC FW SC SC SC B1 B2 B1 B2 OV B2 B2 B1 B2 B2 B2 B2 B2 B2 PoP 12hr 0 0 0 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Heat index 81 86 88 88 84 81 84 85 86 82 Max heat 86 88 82 88 88 83 85 86 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 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 73 87 70 87 71 89 74 92 Temp 77 73 84 80 74 71 84 80 75 72 85 82 78 74 87 84 Dewpt 65 65 64 63 63 63 62 62 65 65 64 65 68 68 69 69 PWind dir E E E E E E E SE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 SC SC SC SC SC SC SC B1 SC SC SC B1 PoP 12hr 20 20 10 10 10 10 10 20 Rain shwrs S S S S S Tstms S S $$ WVZ052-042000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 437 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 60 84 63 80 Temp 56 62 76 83 82 76 67 64 62 65 76 82 81 76 70 67 66 67 74 78 76 72 Dewpt 55 55 57 55 56 59 58 58 58 59 60 59 59 60 60 60 60 61 62 61 61 62 RH 96 78 52 38 41 56 73 81 87 81 58 46 47 58 71 78 81 81 66 56 60 71 Wind dir NW N NE E E E S N N N E SE SE S SE E E NE E E E E Wind spd 1 0 2 2 3 2 1 0 0 0 2 4 5 2 2 1 1 2 4 5 5 3 Clouds FW FW FW SC FW SC B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 0 0 5 20 30 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C C Obvis PF Heat index 82 82 81 Max heat 82 82 82 82 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 81 62 82 61 84 65 87 Temp 66 67 79 74 66 66 79 74 66 66 81 77 69 69 84 79 Dewpt 63 64 64 64 62 62 61 62 62 62 63 65 66 66 68 69 PWind dir E E E E E E SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 20 10 20 10 10 10 20 Rain shwrs C S S S S Tstms S S S $$ VAZ506-042000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 437 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 64 86 67 82 Temp 60 64 79 83 84 77 70 66 64 67 79 83 82 77 72 70 69 70 78 80 80 76 Dewpt 59 60 62 60 60 61 61 61 60 63 65 63 63 64 64 64 64 66 67 65 66 66 RH 96 87 56 46 44 58 73 84 87 87 62 51 53 64 76 81 84 87 69 60 62 71 Wind dir N N N NE E SE S W N N NE SE SE SE SE SE NE NE E E E E Wind spd 2 2 3 3 4 4 2 1 1 2 2 4 5 4 2 2 2 2 5 5 6 5 Clouds CL FW FW FW FW SC SC B1 B2 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 0 0 5 10 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C Heat index 83 84 84 83 82 82 Max heat 83 85 84 84 82 82 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 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 66 83 64 83 64 84 68 88 Temp 70 69 81 75 67 68 81 75 67 68 82 76 70 71 85 79 Dewpt 66 68 68 66 65 65 65 65 65 67 68 69 70 71 74 72 PWind dir E E E E E E E SE Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B1 B1 B1 SC SC SC SC SC SC SC B1 B1 SC SC B1 PoP 12hr 30 20 20 20 10 20 10 30 Rain shwrs C S S S S S S C Tstms S S S $$ VAZ037-042000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 437 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 61 79 62 77 Temp 59 62 76 80 79 73 67 64 63 65 75 77 75 71 67 65 65 65 73 75 73 69 Dewpt 56 57 58 56 56 59 58 58 58 59 60 59 59 60 60 60 61 61 62 62 62 62 RH 90 84 54 44 45 62 73 81 84 81 60 54 58 68 78 84 87 87 68 64 68 78 Wind dir NW NW NE E E E NE N N NW E SE SE NW N N N N NE NE NE N Wind spd 2 2 4 5 5 2 1 1 1 1 2 4 4 3 2 2 2 2 4 5 5 5 Clouds CL CL FW FW FW FW SC B2 OV B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 0 5 10 30 40 QPF 12hr 0 0 0 0.02 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C C C C Tstms S S Heat index 80 Max heat 80 80 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 78 64 79 64 81 66 85 Temp 66 66 76 72 67 66 76 72 66 66 78 73 69 69 83 76 Dewpt 64 65 66 65 65 64 63 64 64 65 66 67 68 68 69 70 PWind dir NE NE NE NE NE NE NE E Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 SC B1 B1 B1 PoP 12hr 40 40 30 30 20 30 10 30 Rain shwrs C C S C C S S C S C C Tstms S S S S S C $$ MDZ003-042000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 437 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 63 86 66 82 Temp 59 63 78 83 84 77 69 65 63 67 79 83 83 77 71 68 67 68 76 79 79 74 Dewpt 54 57 60 59 59 61 59 58 57 60 63 62 61 62 62 61 60 62 64 64 63 64 RH 83 81 54 44 43 58 70 78 81 78 58 49 47 60 73 78 78 81 66 60 58 71 Wind dir N N N E E SE SE E NE N E SE SE SE SE E E NE E E E E Wind spd 2 2 2 3 3 2 2 1 1 2 2 4 5 4 2 2 2 2 3 5 5 4 Clouds CL CL FW SC FW FW B1 B1 B2 B1 B1 B2 B2 B2 B2 B1 B2 B2 B1 B2 B2 B1 PoP 12hr 0 0 5 10 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C Heat index 83 84 84 83 Max heat 83 84 84 85 82 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 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 65 83 63 83 62 85 66 88 Temp 67 68 81 76 66 66 81 75 66 66 82 77 69 70 85 80 Dewpt 64 65 66 64 63 63 63 63 62 63 65 65 66 68 72 69 PWind dir E E E SE E SE SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 20 10 10 10 10 10 20 Rain shwrs C S S S Tstms S S $$ MDZ017-042000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 437 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 68 85 72 84 Temp 68 72 79 83 84 78 73 71 70 75 80 83 84 79 75 73 72 75 80 83 83 78 Dewpt 59 62 61 60 61 62 63 63 63 64 64 63 64 64 64 65 66 68 68 67 67 67 RH 73 71 54 46 46 58 71 76 78 69 58 51 51 60 69 76 81 79 67 59 59 69 Wind dir NE N NE NE E SE SE SE NE NE NE E E E E E E NE E E E E Wind spd 4 4 5 5 5 3 3 2 2 3 4 5 5 5 5 4 5 6 8 9 10 9 Clouds CL CL CL CL CL FW SC SC B2 B2 B2 B1 B1 B2 B1 B1 B1 B1 B1 B1 B2 B2 PoP 12hr 0 0 0 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Heat index 83 84 82 84 85 83 86 86 Max heat 83 84 84 85 86 87 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 83 69 83 70 84 72 86 Temp 73 75 82 77 71 73 81 77 71 74 81 78 74 77 83 80 Dewpt 67 69 68 67 66 67 67 67 68 70 70 71 71 73 74 74 PWind dir E E E E E E E E Wind char GN GN GN GN LT GN LT LT Avg clouds B2 B1 B1 B1 B1 SC SC B1 B1 B1 B1 B1 SC SC SC SC PoP 12hr 20 20 20 20 10 20 20 20 Rain shwrs S S S S S S S S S S S S S Tstms S S S $$ WVZ502-042000- Petersburg WV 38.99N 79.15W Elev. 963 ft 437 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 58 82 60 78 Temp 53 57 74 81 81 73 65 61 59 62 74 79 78 71 65 63 61 62 71 75 75 69 Dewpt 53 55 59 58 57 60 58 56 55 57 60 59 59 60 58 58 58 59 62 62 62 62 RH 100 93 59 46 44 64 78 84 87 84 62 50 52 68 78 84 90 90 73 64 64 78 Wind dir SW SW E E E SE SW S SW S SE SE SE SE S S S SE E E SE SE Wind spd 1 1 2 4 4 3 2 2 2 1 2 5 5 3 2 2 2 1 2 5 5 3 Clouds FW FW SC FW FW SC B1 B2 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 0 5 10 30 40 QPF 12hr 0 0 0 0.02 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C C C C Tstms S S Obvis F PF Heat index 81 81 Max heat 81 82 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 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 60 81 60 82 60 84 63 88 Temp 62 63 78 72 62 63 79 72 62 63 81 73 66 66 84 76 Dewpt 61 61 66 65 62 61 64 64 61 61 66 66 65 66 71 71 PWind dir SE E SE E SE SE S S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 SC B1 B1 B1 SC SC B1 B1 B1 B1 SC B1 PoP 12hr 30 30 20 30 10 20 10 30 Rain shwrs C S S C S S C S C Tstms S S S C $$ MDZ014-042000- Annapolis MD 38.99N 76.49W Elev. 7 ft 437 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 68 83 71 81 Temp 68 70 78 82 83 79 75 71 70 72 79 82 82 79 75 74 73 74 77 80 80 77 Dewpt 61 61 61 60 59 60 63 63 63 64 65 64 63 64 65 66 66 66 67 65 66 65 RH 78 73 56 47 44 52 66 76 78 76 62 55 53 60 71 76 79 76 71 60 62 67 Wind dir NW N N NE E SE S W NW N NE E E E SE E E NE E E E E Wind spd 1 2 5 6 4 2 2 1 1 2 3 5 5 5 4 2 3 5 8 10 10 9 Clouds CL CL CL SC CL SC FW SC B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 0 0 0 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Heat index 82 83 83 83 82 82 Max heat 82 83 83 83 82 82 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 81 68 80 69 81 71 83 Temp 73 73 79 76 72 71 79 76 71 72 79 77 74 74 81 79 Dewpt 67 68 67 65 66 66 65 65 67 68 68 68 70 71 72 71 PWind dir E E E E E E E E Wind char LT GN LT GN LT LT LT LT Avg clouds B2 B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 SC SC SC PoP 12hr 20 20 10 10 10 10 10 20 Rain shwrs S S S S S S Tstms S S $$