Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
038 FOUS51 KLWX 140540 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 140 AM EDT Thu Aug 14 2025 VAZ054-142000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 140 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 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 75 88 73 87 Temp 76 77 84 86 85 82 79 78 76 76 83 85 86 82 78 76 74 75 81 84 85 81 Dewpt 74 73 73 72 72 73 73 73 72 72 73 71 71 72 72 72 72 72 71 69 68 68 RH 94 87 70 63 65 74 82 85 87 87 72 63 61 72 82 87 93 90 72 61 57 65 Wind dir W NW N NW N N NE N NE NE NE E E E E E E E E E E SE Wind spd 4 5 5 5 5 5 3 3 5 5 6 8 9 8 5 5 5 5 6 6 8 6 Clouds SC B1 SC B1 B1 B1 SC SC FW SC SC B1 B1 SC SC SC B1 B1 SC SC SC FW PoP 12hr 50 20 30 10 20 QPF 12hr 0.03 0 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C S S Tstms C C S C C S S Heat index 90 92 91 87 89 90 91 87 85 88 88 84 Max heat 94 94 86 91 91 85 88 89 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 91 74 89 72 86 70 85 Temp 75 74 88 83 77 76 87 81 75 73 84 79 73 71 82 79 Dewpt 70 70 69 69 70 70 68 69 70 69 67 67 68 69 66 67 PWind dir S S SW NE E SE SE E Wind char LT LT LT LT LT GN LT GN Avg clouds FW FW FW FW SC FW SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 5 10 10 30 20 30 20 30 Rain shwrs C S C S S C Tstms C S S S S $$ MDZ013-142000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 140 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 72 88 71 86 Temp 73 75 84 86 84 81 76 74 73 75 82 86 85 80 75 73 72 73 80 84 84 79 Dewpt 73 73 75 75 74 75 74 73 71 73 75 74 74 74 73 72 72 72 72 72 70 70 RH 100 94 74 70 72 82 94 97 93 94 79 68 70 82 94 97100 97 77 67 63 74 Wind dir NW NW N N N N N N N NE NE E E E E E E E E E E SE Wind spd 2 2 3 4 4 2 2 2 2 4 5 5 5 5 3 2 3 3 4 5 5 4 Clouds B1 SC SC B1 B2 SC SC SC SC SC SC B1 B1 SC SC SC B1 B1 SC SC SC FW PoP 12hr 50 20 30 10 20 QPF 12hr 0.06 0.01 0.03 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S C C S S Tstms C C S S C C S S Heat index 92 95 91 87 89 94 93 84 84 90 88 Max heat 95 95 94 94 90 90 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 69 90 71 88 70 86 68 85 Temp 72 72 88 81 74 74 85 79 72 72 83 77 70 70 81 76 Dewpt 69 71 71 71 69 69 70 70 69 69 68 68 67 68 68 68 PWind dir S S SW NE E SE SE E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC FW SC B1 SC SC SC SC B1 B1 SC B1 PoP 12hr 5 20 20 30 20 30 20 30 Rain shwrs S S C S C S S C Tstms S C S S S S $$ MDZ011-142000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 140 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 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 94 78 93 76 91 Temp 79 79 88 90 89 85 83 81 79 78 87 89 88 85 82 79 78 76 85 88 88 84 Dewpt 73 72 71 72 72 72 72 72 71 70 71 71 71 71 72 71 72 70 69 69 68 68 RH 82 79 57 56 57 65 70 74 77 76 59 56 57 63 72 77 82 82 59 54 52 59 Wind dir NW NW N N N N N N N NE NE E E E E E E E E E E SE Wind spd 2 2 3 4 4 2 1 2 2 3 5 5 5 5 3 2 2 3 4 5 5 3 Clouds B1 SC SC B1 B2 SC SC FW SC SC SC B1 B1 SC SC SC B1 B1 SC SC FW FW PoP 12hr 50 20 30 10 20 QPF 12hr 0.05 0 0.26 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S S S C C S S Tstms C S S S C C S S Heat index 94 97 96 91 88 85 93 95 94 90 87 89 92 92 87 Max heat 84 97 97 90 83 95 95 89 92 92 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 75 95 77 93 75 91 73 90 Temp 79 76 92 87 82 77 90 84 79 75 86 82 77 73 86 82 Dewpt 69 69 68 68 69 68 68 67 68 68 65 66 66 66 66 65 PWind dir S S W NE E SE SE E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC FW SC B1 SC SC SC SC B1 B1 SC B1 PoP 12hr 5 20 20 30 20 30 30 30 Rain shwrs S S C S C C S C Tstms S C S S S S $$ WVZ052-142000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 140 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 68 87 68 87 Temp 71 73 82 85 85 80 73 71 69 72 81 86 85 80 73 70 69 71 80 84 84 79 Dewpt 70 71 71 70 70 70 71 69 67 67 69 68 69 70 70 70 69 70 70 69 68 68 RH 97 93 69 61 61 72 93 93 93 84 67 55 59 72 90100100 97 72 61 59 69 Wind dir W NW NW N N N N N N N NE NE E E SE E E E SE SE SE SE Wind spd 2 2 5 5 5 2 1 1 2 3 3 4 4 2 2 1 1 2 3 4 4 2 Clouds B1 SC SC B1 B1 SC SC SC SC SC SC B1 B1 SC SC SC B1 B1 SC SC SC FW PoP 12hr 40 10 30 10 20 QPF 12hr 0.15 0 0.03 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S Tstms C C C C S S Heat index 86 90 90 83 84 89 89 83 83 88 87 Max heat 90 90 89 90 88 89 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 92 69 89 67 87 65 85 Temp 70 71 90 83 72 72 86 79 69 70 84 77 68 68 81 76 Dewpt 68 68 67 68 68 67 67 67 67 67 67 67 67 66 66 66 PWind dir S SW W N E SE SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC SC SC B1 SC SC SC B1 B1 B1 SC B1 PoP 12hr 5 20 10 30 20 40 30 40 Rain shwrs S C S C C S S C Tstms S C S S S S $$ VAZ506-142000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 140 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 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 71 88 71 87 Temp 73 74 83 86 85 81 75 73 72 73 83 86 85 80 76 73 72 73 80 84 85 80 Dewpt 73 73 76 75 74 75 74 73 71 73 76 75 74 74 74 73 72 73 74 73 72 71 RH 100 97 80 70 70 82 97100 97100 80 70 70 82 94100100100 82 70 65 74 Wind dir NW NW NW NW N NE NW N N N NE NE NE E E E E E E E E SE Wind spd 2 3 5 5 5 3 2 2 2 3 4 5 5 4 2 2 2 2 4 4 5 4 Clouds B1 B1 SC B1 B1 SC SC SC SC SC SC B1 B1 SC SC SC B1 B1 SC SC SC FW PoP 12hr 50 20 30 10 20 QPF 12hr 0.02 0.01 0.04 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S Tstms C C C C S S Heat index 91 95 93 87 91 95 93 84 84 90 91 83 Max heat 96 96 95 95 90 92 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 92 71 90 69 88 67 85 Temp 72 72 89 83 74 74 87 80 72 71 84 78 70 69 81 76 Dewpt 70 72 72 72 71 70 71 70 69 69 69 69 69 69 71 69 PWind dir S SW W N E SE SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC FW SC B1 SC SC SC B1 B1 B1 B1 B1 PoP 12hr 5 20 10 30 20 30 30 40 Rain shwrs S C S C C S C Tstms S C S S S S $$ VAZ037-142000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 140 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 69 87 69 86 Temp 71 72 82 85 81 77 73 71 71 72 81 85 84 79 74 72 70 71 79 83 83 78 Dewpt 71 71 72 71 72 72 72 71 70 70 72 71 71 71 72 71 70 71 71 69 69 69 RH 100 97 72 63 74 85 97100 97 93 74 63 65 77 93 97100100 77 63 63 74 Wind dir NW N E NE S W NW N N NE NE NE NE NE NE NE NE NE NE E E E Wind spd 1 1 2 2 3 2 2 2 2 3 4 5 5 3 2 1 2 2 3 5 4 2 Clouds B1 SC SC B1 B1 B1 SC SC SC SC SC B1 B1 SC SC SC B1 B1 SC B1 B1 FW PoP 12hr 60 30 30 20 30 QPF 12hr 0.10 0.01 0.01 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C S S C C Tstms C C C S C S C Obvis PF Heat index 87 90 85 85 90 89 87 87 Max heat 90 89 90 90 87 88 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 90 69 89 69 86 67 84 Temp 69 70 87 80 72 72 87 79 71 70 84 77 70 69 81 74 Dewpt 69 69 69 70 70 70 69 69 69 68 68 68 68 68 67 67 PWind dir S S W NE E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC FW FW FW SC FW B1 SC SC SC B1 B1 B1 SC B1 PoP 12hr 5 10 10 30 20 40 30 40 Rain shwrs C S C C C Tstms C C S C $$ MDZ003-142000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 140 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 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 69 89 69 88 Temp 71 72 82 86 85 81 75 72 70 73 82 86 86 80 75 72 70 72 80 84 86 80 Dewpt 71 71 73 73 72 72 71 69 68 69 71 70 70 71 71 71 70 71 72 72 69 69 RH 100 97 74 65 65 74 87 90 93 87 69 59 59 74 87 97100 97 77 67 57 69 Wind dir NW NW N N N N N N N N NE E E E E SE E E SE SE SE SE Wind spd 2 2 4 5 5 3 2 2 3 3 3 4 4 4 2 2 2 2 2 4 4 4 Clouds B1 B1 SC B1 B1 SC SC FW SC SC SC SC SC SC SC SC B1 B1 SC SC SC FW PoP 12hr 40 10 20 20 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S S S S S S Tstms C S S S S S S Heat index 87 93 91 85 86 91 91 83 84 90 90 83 Max heat 93 92 91 92 90 91 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 93 69 90 67 88 65 85 Temp 71 72 90 83 73 73 87 80 70 70 84 77 68 68 81 75 Dewpt 68 69 69 70 68 68 68 66 67 66 69 68 67 66 68 66 PWind dir S SW NW NE E SE SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 PoP 12hr 5 20 20 30 20 30 40 40 Rain shwrs S S C S C C S S C Tstms S S C S S S S $$ MDZ017-142000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 140 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 73 86 72 85 Temp 74 77 82 85 85 79 76 75 74 78 82 84 83 79 76 74 73 76 80 83 83 79 Dewpt 74 75 75 75 75 75 74 73 74 75 75 75 75 74 72 72 72 72 72 72 71 70 RH 100 94 79 72 72 88 94 94100 91 79 74 77 85 87 93 97 87 77 70 67 74 Wind dir W NW N NE N NE SW NW N NE NE NE E E E E NE NE NE NE E E Wind spd 4 4 4 5 4 2 2 2 4 5 5 6 6 5 5 5 5 6 6 6 6 5 Clouds SC B1 SC B1 B1 SC SC FW FW B1 B1 B1 B1 SC SC SC SC SC SC FW FW FW PoP 12hr 40 20 30 10 10 QPF 12hr 0.01 0.01 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C C C Tstms C C S S S C C Heat index 89 94 94 89 92 90 84 88 88 Max heat 94 94 92 92 88 88 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 87 71 86 71 83 70 84 Temp 72 74 84 80 74 77 84 78 73 75 81 77 72 74 81 76 Dewpt 69 71 70 70 70 71 71 70 69 70 69 69 68 69 68 69 PWind dir E SE SW NE E E SE E Wind char LT LT LT LT LT GN LT GN Avg clouds CL FW FW CL FW FW FW SC SC SC FW FW FW SC SC SC PoP 12hr 5 10 10 20 20 20 20 20 Rain shwrs S S S S S Tstms S S S S $$ WVZ502-142000- Petersburg WV 38.99N 79.15W Elev. 963 ft 140 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 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 65 88 65 89 Temp 68 68 79 84 83 77 70 68 66 67 79 86 86 77 71 67 66 67 79 86 86 78 Dewpt 68 68 72 72 72 71 69 67 66 67 71 70 69 71 69 67 66 67 72 70 70 70 RH 100100 79 67 70 82 97 97100100 77 59 57 82 93100100100 79 59 59 76 Wind dir S SW N N N NW W W NW NE N NE E E SE S S S E E E SE Wind spd 2 1 2 4 4 3 2 1 1 1 2 2 3 2 2 1 1 1 1 2 3 2 Clouds B1 OV B1 B1 B1 SC SC SC B1 B1 SC B1 B1 SC SC FW SC SC FW B1 B1 FW PoP 12hr 50 10 30 10 40 QPF 12hr 0.01 0 0.01 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S C C Tstms C C S C C C Obvis PF PF Heat index 90 88 91 90 91 91 Max heat 90 90 91 92 91 92 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 93 66 91 65 90 64 85 Temp 67 67 90 80 69 69 87 78 67 68 86 77 67 66 81 73 Dewpt 67 66 69 70 67 66 70 70 67 66 69 70 67 66 68 68 PWind dir S NW W N S E S W Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC SC SC B1 SC SC SC B1 B1 B1 B1 B1 PoP 12hr 5 20 10 40 20 50 30 50 Rain shwrs S C S S C C S C C Tstms S C S C S S $$ MDZ014-142000- Annapolis MD 38.99N 76.49W Elev. 7 ft 140 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 75 85 73 83 Temp 76 77 82 84 83 81 78 77 76 77 80 83 83 80 77 75 74 76 78 82 83 79 Dewpt 74 73 74 74 74 74 76 74 74 74 74 73 73 73 74 74 73 72 72 70 70 70 RH 94 87 77 72 74 79 94 90 94 90 82 72 72 79 90 97 97 87 82 67 65 74 Wind dir NW NW N E W N N N N NE NE NE E E E E E NE E E E SE Wind spd 2 2 4 5 4 2 1 2 3 5 6 8 8 5 5 3 4 5 5 6 6 5 Clouds B1 SC SC B1 B1 SC SC SC SC B1 SC B1 B1 SC SC SC B1 B1 SC FW FW CL PoP 12hr 50 20 30 10 10 QPF 12hr 0.06 0.01 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S S S C C Tstms S C C S S C C Heat index 88 91 90 86 84 89 89 84 86 87 Max heat 91 90 89 89 86 87 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 85 74 84 72 83 71 82 Temp 74 74 84 80 76 76 83 79 75 74 81 77 73 73 81 77 Dewpt 71 71 71 70 71 70 70 70 70 70 69 68 70 69 68 67 PWind dir S S SW NE E SE SE E Wind char LT LT LT LT LT GN LT GN Avg clouds CL FW FW FW SC FW SC B1 SC SC SC SC SC SC SC B1 PoP 12hr 5 10 20 30 20 20 20 30 Rain shwrs S C S S S S C Tstms C S S S S $$