Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
658 FOUS51 KLWX 151438 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 1038 AM EDT Tue Jul 15 2025 VAZ054-152000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 1038 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 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 76 89 77 93 Temp 82 86 85 83 79 78 76 78 83 87 86 82 80 80 78 80 86 90 89 86 Dewpt 74 74 74 74 74 74 74 74 76 75 75 74 75 74 74 74 76 74 74 75 RH 77 68 70 74 85 88 94 88 80 68 70 77 85 82 88 82 72 60 61 70 Wind dir N S S S S S S S SW SW S S S SW SW SW SW SW SW SW Wind spd 2 4 5 5 5 5 5 8 10 10 11 10 9 9 10 10 10 10 10 10 Clouds B1 B1 B1 SC SC SC B1 B1 B1 B2 B2 B2 B1 B1 SC SC SC B1 B1 SC PoP 12hr 50 20 70 20 40 QPF 12hr 0.03 0 0.11 0.02 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C L L S S C C Tstms C C S C L L S S C C Heat index 88 94 93 90 91 96 95 88 85 84 84 96 99 98 95 Max heat 94 94 86 96 96 86 84 99 99 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 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 90 75 87 76 89 76 89 Temp 81 81 87 82 78 77 85 81 78 78 86 82 78 78 86 82 Dewpt 75 74 74 74 73 72 72 73 73 74 75 74 73 72 72 72 PWind dir SW NW NW NE S SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B2 B1 SC B1 B1 B1 B1 B1 B2 B1 B1 SC B1 PoP 12hr 10 60 30 40 30 60 40 40 Rain shwrs L C C C C C L C S S C Tstms C C C S C C C $$ MDZ013-152000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 1038 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 74 91 76 94 Temp 82 86 85 82 78 76 75 77 84 88 86 83 79 77 76 78 87 91 90 86 Dewpt 75 76 75 76 76 75 74 75 77 77 76 77 76 75 74 76 76 75 74 76 RH 79 72 72 82 94 97 97 94 80 70 72 82 91 94 94 94 70 60 60 72 Wind dir NE SE SE S S S S SW S S S S S SW SW SW SW SW SW SW Wind spd 2 3 4 3 2 2 2 3 5 8 9 5 4 5 5 5 8 8 8 5 Clouds B1 SC B1 SC SC SC B1 B1 B1 B2 B2 B2 B2 B1 B1 SC SC B1 B1 SC PoP 12hr 50 20 70 30 40 QPF 12hr 0.07 0 0.13 0.04 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C L L C C S S C C S Tstms S C C L L C C S C C S Heat index 89 96 94 89 94100 96 92 98102 99 96 Max heat 96 98 87 100 100 90 102 102 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 90 73 87 73 89 73 89 Temp 80 79 87 81 75 75 84 79 76 76 86 81 75 76 86 81 Dewpt 75 75 76 75 73 73 73 74 74 74 76 76 74 73 73 73 PWind dir W NW NW NE S SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC B1 B2 B1 SC SC B1 B1 B1 B1 B2 B1 SC SC B1 PoP 12hr 20 60 30 40 30 60 40 40 Rain shwrs S S L C C C C C L C S S C Tstms S S L C C S S C C C $$ MDZ011-152000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 1038 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 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 80 94 80 98 Temp 86 89 89 86 84 82 81 80 88 89 90 86 84 82 81 81 91 93 94 90 Dewpt 72 74 74 73 75 74 74 73 74 75 75 74 75 74 74 74 74 74 73 74 RH 63 61 61 65 74 77 79 79 63 64 62 68 74 77 79 79 58 54 51 60 Wind dir NE S SE S S SW S S S S S S S SW SW SW SW SW SW SW Wind spd 2 3 4 3 2 2 2 3 5 8 8 5 4 4 4 5 6 8 8 5 Clouds B1 B1 B1 SC SC SC B1 B1 B1 B2 B2 B2 B2 B1 B1 SC SC B1 B1 SC PoP 12hr 50 20 70 30 40 QPF 12hr 0.03 0.01 0.15 0.06 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C L L C C S S C C S Tstms S C C L L C C S C C S Heat index 92 98 98 93 92 88 86 84 97 99101 94 92 88 86 86101103103 99 Max heat 98 99 94 86 99 101 94 88 103 103 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 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 82 94 77 91 78 93 78 93 Temp 85 82 90 85 81 77 87 84 80 78 89 85 81 78 89 86 Dewpt 74 73 74 73 72 70 71 71 73 73 74 73 73 71 71 71 PWind dir W NW N NE S SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC B1 B2 B1 SC B1 B1 B1 B1 B1 B2 B1 SC SC B1 PoP 12hr 20 60 30 40 30 60 40 40 Rain shwrs S S L C C C C C L C S S C Tstms S S C C C S S C C C $$ WVZ052-152000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 1038 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 71 89 72 92 Temp 80 86 85 81 76 73 72 75 83 87 84 79 75 74 73 77 85 90 89 84 Dewpt 72 72 72 73 72 72 71 72 73 73 73 72 72 71 71 72 73 73 72 72 RH 77 63 65 77 87 97 97 90 72 63 70 79 90 90 93 85 67 58 57 67 Wind dir NE SE SE SE S S S S S S SW S S SW SW SW W W W W Wind spd 2 3 4 3 2 2 2 3 4 5 6 5 4 4 3 4 5 8 8 5 Clouds SC SC B1 SC B1 SC B1 SC B1 B2 B2 B1 B2 B1 B1 SC SC B1 B1 SC PoP 12hr 40 20 80 30 40 QPF 12hr 0.01 0.14 0.33 0.03 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S S D D C C C C S Tstms S C S S L L C S C C S Heat index 84 92 91 86 89 94 90 92 98 96 90 Max heat 92 91 94 94 98 97 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 87 70 86 70 87 70 88 Temp 76 78 85 79 72 73 83 79 72 74 84 80 72 73 85 80 Dewpt 71 72 73 72 70 69 72 72 71 71 73 72 70 69 70 70 PWind dir W NW NW E S SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 B2 B1 B1 B1 B1 B1 B1 B1 B2 B1 SC SC B1 PoP 12hr 20 70 20 40 30 60 40 40 Rain shwrs S S L S S C C C C L C S S C Tstms S S C S C S S C S C $$ VAZ506-152000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 1038 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 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 73 91 74 94 Temp 82 87 86 82 77 75 74 76 84 88 86 81 77 77 75 78 87 90 88 84 Dewpt 76 77 76 76 76 75 74 75 78 78 77 77 75 75 74 76 76 76 75 76 RH 82 72 72 82 97100100 97 82 72 75 88 94 94 97 94 70 64 66 77 Wind dir N SE S S S S S S S S S S S S SW SW SW SW SW SW Wind spd 2 3 4 4 3 2 3 5 6 9 10 6 5 5 5 5 6 8 8 6 Clouds SC SC B1 SC B1 B1 B1 B1 B1 B2 B2 B2 B1 B1 SC SC SC B1 B1 SC PoP 12hr 50 20 70 20 40 QPF 12hr 0.01 0.01 0.10 0.17 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C L L S S C C Tstms C C S C L L S S C C Heat index 89 99 96 89 95102 97 88 98102 98 93 Max heat 99 99 102 102 102 101 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 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 74 89 72 87 72 89 72 90 Temp 77 79 87 80 75 74 85 80 74 76 86 81 75 76 87 80 Dewpt 75 75 78 75 73 73 76 75 74 75 78 76 74 74 75 74 PWind dir W NW NW N S SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC B1 B2 B1 SC B1 B1 B1 B1 B1 B2 B1 SC SC B1 PoP 12hr 10 70 30 40 30 60 40 40 Rain shwrs L C C C S C L C S C Tstms C C C S S C C C $$ VAZ037-152000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 1038 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 72 88 74 91 Temp 80 84 81 78 74 73 72 73 81 85 83 79 77 75 75 75 84 88 85 81 Dewpt 73 73 74 73 73 73 72 73 73 74 74 73 73 72 72 73 74 74 74 73 RH 79 70 79 85 97100100100 77 70 74 82 87 90 90 94 72 63 70 77 Wind dir E SE SE S S SW S S S S S S S SW SW SW SW SW SW SW Wind spd 1 3 3 3 2 2 2 5 8 9 9 6 5 5 5 6 8 8 9 6 Clouds SC B1 B1 B1 B1 B1 B1 SC B1 B2 B2 B1 B1 B1 SC SC SC B1 B1 SC PoP 12hr 70 40 70 20 50 QPF 12hr 0.26 0.05 0.14 0.02 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S L L S S C C Tstms C C C S L L S S C C Heat index 84 90 86 86 93 90 91 97 93 86 Max heat 90 88 93 93 97 97 Flood A A A A Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 89 71 87 72 88 71 87 Temp 76 76 87 79 74 74 85 78 74 74 85 80 74 74 85 78 Dewpt 73 73 73 73 73 73 74 74 73 73 73 73 73 72 72 72 PWind dir SW W NW SE W SW W W Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B2 B1 B1 B1 B2 B1 B1 B1 B2 B1 B1 SC B1 PoP 12hr 10 70 20 60 30 60 30 50 Rain shwrs L S L C S S L C S C Tstms L S C C C S C $$ MDZ003-152000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 1038 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 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 91 72 94 Temp 81 86 86 83 77 74 73 76 84 88 86 79 75 74 73 76 84 90 90 84 Dewpt 74 74 74 73 73 73 72 74 75 76 75 74 74 73 72 74 75 74 74 74 RH 79 68 68 72 87 97 97 94 74 68 70 85 97 97 97 94 74 60 60 72 Wind dir N SE SE SE SE S S S S S S S S SW SW SW W W W SW Wind spd 2 3 4 3 2 2 2 3 4 5 6 5 4 4 4 4 5 8 8 5 Clouds FW SC B1 SC SC SC B1 SC B1 B2 B2 B1 B2 B1 B1 SC SC B1 B1 SC PoP 12hr 40 20 80 40 40 QPF 12hr 0.01 0.03 0.32 0.07 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S D D C C C C S Tstms S S S S L L C S C C S Heat index 86 94 94 89 92 99 95 92 99 99 91 Max heat 94 95 84 99 99 99 100 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 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 74 88 70 86 71 88 69 88 Temp 76 77 84 80 73 72 83 80 73 74 85 80 72 73 86 81 Dewpt 73 74 74 73 70 70 72 72 71 72 75 73 71 71 71 70 PWind dir W W NW NW SE SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 B2 B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 SC B1 PoP 12hr 20 60 20 40 40 60 40 40 Rain shwrs S S L S C C C C L C S S C Tstms S S C S C S S C S C $$ MDZ017-152000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 1038 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 76 92 78 95 Temp 82 86 87 83 79 77 76 81 85 88 89 85 81 80 79 83 87 92 92 86 Dewpt 75 76 77 76 75 74 74 76 77 77 76 77 76 75 74 77 77 77 76 77 RH 79 72 72 80 88 90 94 85 77 70 66 77 85 85 85 82 72 62 60 75 Wind dir SW SE SE S S SW SW SW SW S S S SW SW SW SW SW SW SW SW Wind spd 3 5 6 5 5 5 5 8 9 10 10 8 9 10 11 12 12 11 11 8 Clouds B1 B1 B1 B1 SC B1 SC B1 B1 B1 B1 B1 B1 B1 SC B1 SC B1 B1 B1 PoP 12hr 60 30 50 20 30 QPF 12hr 0.03 0 0.11 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S C S C C C C S S C C S Tstms C C C C S S S S C C C S S S C S Heat index 89 96 99 91 87 96100100 96 87 85 92 99106105 97 Max heat 96 99 86 87 100 102 94 92 106 106 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 93 76 88 76 90 76 90 Temp 81 82 90 82 77 80 85 81 77 80 87 83 78 80 87 83 Dewpt 75 77 76 75 74 75 76 75 74 76 76 76 75 76 75 74 PWind dir SW W NW NE S S SW N Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 B1 SC B1 B1 B1 B1 B1 B1 B1 SC SC B1 PoP 12hr 20 50 40 30 30 50 40 40 Rain shwrs S C C S C C C C C C S S C Tstms S C C C S C C C $$ WVZ502-152000- Petersburg WV 38.99N 79.15W Elev. 963 ft 1038 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 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 67 91 69 93 Temp 81 86 83 77 72 70 69 71 83 87 85 79 73 71 70 73 84 89 88 81 Dewpt 73 74 74 73 72 70 69 70 74 75 74 74 72 71 70 72 72 72 70 72 RH 77 68 74 87100100100 97 74 68 70 85 97100100 97 67 57 55 74 Wind dir E E SE SE S S S S SW SW SW S SW SW SW SW W W W W Wind spd 1 3 3 2 2 2 2 2 2 4 5 4 4 3 3 3 5 8 6 4 Clouds SC B1 B2 B2 B1 SC B1 B1 B1 B2 B2 B2 B1 SC B1 SC B1 B1 B1 B1 PoP 12hr 60 20 80 40 50 QPF 12hr 0.14 0.07 0.19 0.09 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L S C C D D C C S S S S C C C Tstms C C S C L L C S S C C C Heat index 86 94 90 90 96 93 90 96 93 85 Max heat 94 93 96 96 96 95 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 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 88 68 90 68 89 67 90 Temp 72 73 84 78 70 71 86 79 70 71 86 78 70 70 86 78 Dewpt 70 71 75 73 70 71 73 73 70 70 74 72 70 69 72 72 PWind dir W W W W SW W W W Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B2 B2 B2 B1 B1 B1 B2 B1 B1 B1 B2 B1 B1 B1 B1 PoP 12hr 30 80 30 60 30 70 40 50 Rain shwrs C S C D C S S L C C C L C S C C Tstms C S C S C S S C S S C $$ MDZ014-152000- Annapolis MD 38.99N 76.49W Elev. 7 ft 1038 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 76 87 77 91 Temp 80 84 84 82 79 78 77 78 82 85 84 83 80 80 78 80 84 89 88 84 Dewpt 75 75 74 75 76 76 75 75 76 77 76 76 76 75 75 75 76 76 76 76 RH 85 74 72 79 91 94 94 91 82 77 77 80 88 85 91 85 77 66 68 77 Wind dir NE SE S S S S SW SW S S S S SW SW SW SW SW SW SW SW Wind spd 2 5 6 5 3 2 4 5 8 10 11 8 6 8 9 9 10 11 10 6 Clouds SC B1 B1 SC SC SC B1 B1 B1 B2 B2 B2 B2 B1 B1 SC SC B1 B1 SC PoP 12hr 50 20 60 30 40 QPF 12hr 0.01 0.02 0.11 0.04 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S C C L L C C S S C C S Tstms S C C S S C L L C C S C C S Heat index 85 92 91 89 89 96 93 91 86 85 85 93100 99 93 Max heat 92 92 86 96 96 89 85 100 100 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 88 75 85 75 86 76 86 Temp 81 81 87 81 78 77 83 80 77 78 84 81 78 78 84 81 Dewpt 76 75 76 75 74 73 73 73 75 74 76 75 75 73 73 73 PWind dir SW W NW E S S W W Wind char LT LT LT LT LT LT LT LT Avg clouds SC B1 SC B2 B1 SC SC B1 B1 B1 B1 B2 B1 B1 B1 B1 PoP 12hr 20 60 30 30 30 60 40 40 Rain shwrs S L C C C C C L C S S C Tstms S L C C S S C C C $$