Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
738 FOUS51 KLWX 121740 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 140 PM EDT Sat Jul 12 2025 VAZ054-122000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 140 PM EDT Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 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 75 88 74 89 Temp 88 88 85 80 78 76 78 81 84 85 81 78 76 75 77 82 86 86 83 Dewpt 74 73 73 74 73 73 73 74 75 74 74 74 73 73 73 74 73 72 73 RH 63 61 67 82 85 90 85 79 74 70 79 88 90 94 87 77 65 63 72 Wind dir SE SE SE SE SE SE SE SE SE SE SE S SE S S W NW W E Wind spd 8 9 9 6 5 5 5 5 8 8 6 5 4 2 2 3 4 5 5 Clouds SC SC SC SC B1 B2 B2 B2 B1 B1 B2 B2 OV OV B2 B1 B1 B1 SC PoP 12hr 20 20 60 80 50 QPF 12hr 0.01 0 0.16 0.19 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C S C D D C C C C C C S Tstms S S C S C C C S S C C S Heat index 97 96 92 84 86 92 93 86 88 93 92 89 Max heat 97 97 89 92 94 84 93 93 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 91 76 90 76 91 77 92 Temp 77 78 88 84 78 78 88 83 79 79 89 84 79 80 89 83 Dewpt 73 73 72 73 74 74 74 74 74 74 74 74 74 74 74 74 PWind dir SW S S S S SW SW SW Wind char LT LT LT GN GN GN GN LT Avg clouds SC SC SC B1 SC SC SC B1 SC B1 B1 B1 B1 B1 SC B2 PoP 12hr 20 30 10 30 20 40 30 60 Rain shwrs S C C S C C S S L Tstms S C C S C C C $$ MDZ013-122000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 140 PM EDT Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 73 87 72 89 Temp 88 88 83 78 76 74 75 79 83 84 81 77 75 73 75 82 86 86 82 Dewpt 74 73 75 75 75 73 74 75 76 75 75 75 74 73 74 75 75 74 75 RH 63 61 77 91 97 97 97 88 80 74 82 94 97100 97 79 70 68 79 Wind dir SE SE SE SE SE SE SE E SE SE S S S S S SW S S SE Wind spd 6 6 5 4 3 3 3 5 5 6 4 3 2 2 2 2 3 3 2 Clouds SC SC FW SC B1 B2 B2 OV B2 B1 B2 B2 OV OV B2 B1 B1 B1 SC PoP 12hr 20 20 60 80 50 QPF 12hr 0 0 0.05 0.30 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C D D L L C C C C S Tstms S S C C C C S C C C S Heat index 97 96 90 91 92 87 89 95 94 89 Max heat 97 97 87 91 94 95 96 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 91 74 91 76 93 76 93 Temp 75 76 89 83 76 78 88 83 78 79 91 84 78 79 90 83 Dewpt 74 73 73 75 74 75 76 76 75 76 76 77 75 75 76 76 PWind dir SW SE S S SW SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC SC SC SC SC B1 SC B1 B1 B1 B1 B1 B1 B2 PoP 12hr 20 20 10 30 20 40 30 60 Rain shwrs S S S C S C C S S L Tstms S S S C S C C S C $$ MDZ011-122000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 140 PM EDT Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 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 95 79 91 77 93 Temp 91 92 86 84 80 79 79 83 87 88 83 83 78 78 80 86 89 90 84 Dewpt 73 72 72 74 73 72 72 72 73 73 73 73 72 72 72 73 73 72 72 RH 56 52 63 72 79 79 79 70 63 61 72 72 82 82 77 65 59 56 67 Wind dir SE SE SE SE SE SE SE SE SE SE S SE S S S S SW S SE Wind spd 6 6 5 3 2 2 3 5 5 6 4 2 2 2 2 2 3 3 2 Clouds SC SC FW SC B1 B2 OV B2 B2 B1 B2 B2 B2 OV B2 B1 B1 B1 SC PoP 12hr 20 20 60 80 50 QPF 12hr 0 0 0.01 0.34 0.11 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C D D L L C C C C S Tstms S C C C C S C C C S Heat index 100100 92 91 84 88 94 96 89 89 84 93 97 97 90 Max heat 100 101 93 86 94 97 90 84 97 98 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 78 95 79 95 81 96 80 96 Temp 79 81 92 85 81 83 93 85 82 84 94 85 82 83 93 85 Dewpt 72 71 71 71 73 73 73 73 74 73 74 74 74 73 73 73 PWind dir SW SE S S SW SW SW W Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC SC SC SC SC B1 SC B1 B1 B1 B1 SC B1 B2 PoP 12hr 20 20 10 30 20 50 30 60 Rain shwrs S S S C S C C S S L Tstms S S S C S C C S C $$ WVZ052-122000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 140 PM EDT Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 72 88 70 89 Temp 89 88 83 77 74 73 76 82 85 82 78 73 72 71 74 82 86 86 82 Dewpt 71 71 72 72 72 72 72 72 73 73 72 72 71 71 71 70 70 69 70 RH 56 57 70 85 93 97 87 72 67 74 82 97 97100 90 67 59 57 67 Wind dir SE SE SE S SE SE S SE SE S S S SW W W NW NW N N Wind spd 6 9 6 5 3 2 2 4 5 6 3 2 1 1 2 3 4 4 2 Clouds SC FW B1 SC B1 B2 B2 SC B1 OV B2 B2 B1 B1 SC FW B1 B1 FW PoP 12hr 30 30 80 70 30 QPF 12hr 0.01 0.08 0.41 0.23 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S C D L L S S C C Tstms S C C S C L C C C C Heat index 95 94 88 87 92 87 86 91 90 86 Max heat 96 96 84 92 92 91 92 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 89 70 91 72 91 72 90 Temp 71 73 87 81 73 75 88 83 75 76 89 82 74 76 87 80 Dewpt 67 68 69 70 70 71 72 72 72 71 72 72 72 72 72 72 PWind dir NW SE S S S SW SW W Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC SC SC B1 B1 B2 B1 B2 B1 B1 B1 B2 PoP 12hr 10 20 10 30 20 60 30 60 Rain shwrs S C S L C S S L Tstms S C S C S S C $$ VAZ506-122000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 140 PM EDT Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 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 93 73 90 72 90 Temp 91 88 84 78 75 74 76 81 87 86 80 76 74 73 75 83 88 87 83 Dewpt 75 74 76 75 75 74 75 77 77 77 75 75 74 73 75 76 75 74 75 RH 60 63 77 91100100 97 88 72 75 85 97100100100 80 66 65 77 Wind dir SE SE SE SE SE SE SE SE SE SE SE SE S W NW NW NW N NE Wind spd 6 8 5 4 3 2 3 4 5 6 5 3 2 2 2 3 4 4 3 Clouds B1 SC B1 B1 B1 B1 B2 B2 SC B1 B2 B2 B2 B2 B1 SC B1 B1 SC PoP 12hr 30 30 70 70 40 QPF 12hr 0.05 0.01 0.15 0.19 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S S S S C L L C C S S C C S Tstms S C C S S C C C S C C S Heat index 102 97 93 88 99 97 85 91 98 95 90 Max heat 102 99 87 99 102 98 98 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 92 73 91 75 94 75 93 Temp 74 75 89 82 75 76 88 83 77 78 91 83 77 78 90 83 Dewpt 73 73 74 75 74 75 77 76 75 76 77 76 75 75 77 76 PWind dir W SE S S S SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 SC SC SC B1 B1 B1 B1 B2 B1 B1 SC B2 PoP 12hr 20 30 10 30 20 50 30 60 Rain shwrs S C C S C C S L Tstms S C C S C C C $$ VAZ037-122000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 140 PM EDT Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 71 88 71 89 Temp 88 86 82 76 73 73 75 83 86 82 78 74 72 72 74 82 86 84 80 Dewpt 73 73 73 73 72 72 72 73 73 73 73 73 72 72 72 72 72 71 73 RH 61 65 74 90 97 97 90 72 65 74 85 97100100 93 72 63 65 79 Wind dir SE S SE E N N N E SE S E W SW NW NW N E E E Wind spd 5 5 3 1 0 0 0 2 4 3 2 1 1 1 1 2 2 3 3 Clouds SC SC B1 B1 B1 SC SC FW B1 B2 B1 B1 B2 B1 SC FW B1 B1 SC PoP 12hr 30 40 80 50 30 QPF 12hr 0.33 0.07 0.74 0.23 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C L C C C C S Tstms C C C S C L C S C C S Heat index 96 93 87 89 93 87 87 92 89 84 Max heat 96 96 93 92 92 92 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 89 72 88 73 89 72 90 Temp 73 74 85 80 74 75 85 81 75 76 86 80 75 76 86 80 Dewpt 72 72 72 72 72 72 73 72 73 73 72 73 73 73 73 73 PWind dir NW SE S S SW SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 SC SC SC B1 B1 B1 B1 B2 B1 B1 SC B2 PoP 12hr 20 40 20 40 20 60 30 70 Rain shwrs S C S C S L C S S L Tstms S C S C S C S C $$ MDZ003-122000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 140 PM EDT Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 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 92 72 89 71 90 Temp 90 89 84 76 74 74 76 81 85 85 79 74 72 72 74 82 86 87 82 Dewpt 73 72 74 73 72 72 74 75 76 75 73 73 72 71 73 73 71 69 70 RH 58 57 72 90 93 93 94 82 75 72 82 97100 97 97 74 61 55 67 Wind dir S SE SE S SE S S S SE S S W S SW W NW NW NW N Wind spd 6 6 5 5 4 3 3 4 5 6 4 2 2 2 2 3 4 4 2 Clouds SC FW SC B1 B1 B2 B2 B1 B1 B2 B2 B2 B2 B2 B1 SC B1 B1 FW PoP 12hr 40 30 80 80 30 QPF 12hr 0.01 0.14 0.06 0.48 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C S S S C D D D C C C C Tstms C C S C C L C C C S Heat index 98 96 91 87 94 94 87 91 91 86 Max heat 98 97 86 94 95 91 92 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 91 71 92 73 93 72 91 Temp 72 73 88 83 73 75 89 83 75 77 90 84 75 76 89 82 Dewpt 67 69 70 71 70 73 74 73 73 73 74 73 73 74 75 73 PWind dir NW S S S S SW SW W Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC SC SC B1 B1 B1 B1 B2 B1 B1 B1 B2 PoP 12hr 10 20 10 30 20 60 30 60 Rain shwrs S C S L C S L Tstms S C S C S S C $$ MDZ017-122000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 140 PM EDT Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 75 88 75 89 Temp 88 88 82 78 76 76 79 82 85 86 82 78 77 75 79 83 86 87 83 Dewpt 75 75 75 75 74 73 75 75 75 75 75 75 74 74 75 75 75 75 76 RH 66 66 79 91 94 90 88 79 72 70 79 91 90 97 88 77 70 68 80 Wind dir SE SE SE SE SE SE SE SE SE SE SE SE S S S S S S S Wind spd 6 9 6 5 4 4 5 6 8 9 6 5 4 3 3 3 5 5 4 Clouds FW FW FW FW SC B1 B1 B1 B1 SC B1 B1 B2 B2 B2 B1 B2 B2 B1 PoP 12hr 10 10 40 60 60 QPF 12hr 0 0 0 0.10 0.15 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S C C L L C C L L C Tstms S C S C C S S S C C C C Heat index 98 98 89 89 94 95 89 90 95 96 91 Max heat 98 98 87 94 95 85 95 96 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 90 77 91 78 93 78 94 Temp 77 80 88 83 78 80 88 83 79 81 91 85 80 82 91 85 Dewpt 75 76 76 75 75 76 76 76 75 76 76 76 75 76 77 77 PWind dir SW S S S SW SW SW SW Wind char LT LT LT GN GN GN GN GN Avg clouds B1 SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC B1 PoP 12hr 30 30 20 20 20 30 30 50 Rain shwrs C S S C S S S S C C S C Tstms C C S S C C C $$ WVZ502-122000- Petersburg WV 38.99N 79.15W Elev. 963 ft 140 PM EDT Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 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 93 67 91 66 91 Temp 90 88 80 73 70 68 71 84 86 83 77 71 69 67 70 82 87 85 79 Dewpt 68 70 73 71 69 67 70 73 74 73 73 71 69 67 69 72 70 69 71 RH 49 55 79 93 97 97 97 70 68 72 87100100100 97 72 57 59 77 Wind dir SE SE S SE S S S E W S SW SW SW W W NW NW NW W Wind spd 3 4 3 2 2 2 1 2 3 3 2 2 2 1 1 2 3 4 2 Clouds SC B1 SC SC SC SC SC SC B2 B2 B2 B1 SC SC SC SC SC SC FW PoP 12hr 40 20 80 30 20 QPF 12hr 0.08 0 0.49 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S L L C C S S Tstms C C S S L L C S S S Heat index 94 93 84 90 94 89 87 92 89 Max heat 94 95 94 94 92 91 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 91 68 93 69 93 69 92 Temp 67 68 87 80 70 72 89 81 72 73 89 81 72 73 87 80 Dewpt 66 66 71 73 70 70 72 73 70 71 74 74 71 71 74 73 PWind dir W S SW SW SW W SW W Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC B1 SC SC SC B1 B1 B1 B1 B2 B1 B1 B1 B2 PoP 12hr 10 30 20 40 30 70 40 70 Rain shwrs C S S C C C L C S C L Tstms C S S C S C S S C $$ MDZ014-122000- Annapolis MD 38.99N 76.49W Elev. 7 ft 140 PM EDT Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 75 84 74 85 Temp 85 86 83 79 77 76 76 79 81 83 81 78 76 75 76 80 82 83 82 Dewpt 75 74 74 75 74 74 73 74 75 75 74 75 74 73 74 74 75 74 74 RH 72 68 74 88 90 94 90 85 82 77 79 91 94 94 94 82 79 74 77 Wind dir SE SE SE SE SE SE SE SE SE S S S S S S S S S S Wind spd 8 8 6 5 4 4 4 5 8 8 5 5 3 2 2 3 5 5 3 Clouds FW FW SC SC SC B2 B2 B1 B1 B1 B2 B2 B2 B2 B2 B1 B2 B2 SC PoP 12hr 20 10 50 70 60 QPF 12hr 0 0 0.01 0.21 0.11 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C L L L L C C L L S Tstms S S C C C S S C C C S Heat index 94 94 90 87 90 86 84 89 90 88 Max heat 94 95 87 87 90 85 89 90 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 87 76 88 76 89 77 89 Temp 77 78 85 82 78 78 85 83 79 79 86 84 79 80 87 83 Dewpt 75 73 75 74 75 74 76 75 75 75 77 76 75 74 76 75 PWind dir SW S S S SW SW SW SW Wind char LT LT LT GN LT GN LT LT Avg clouds SC SC SC SC SC SC SC B1 SC B1 B1 B1 B1 B1 B1 B2 PoP 12hr 20 30 20 30 20 40 30 60 Rain shwrs S C S S C S C C S S L Tstms S C S C S C C C $$