Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
020 FOUS51 KLWX 212102 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 502 PM EDT Mon Sep 21 2026 VAZ054-220800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 502 PM EDT Mon Sep 21 2026 Date 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 66 57 66 57 Temp 69 68 67 65 64 64 64 64 64 61 60 59 57 59 63 65 65 63 61 60 58 Dewpt 63 63 63 63 60 60 61 61 60 58 57 56 55 55 57 59 57 56 54 54 53 RH 81 84 87 93 87 87 90 90 87 90 90 90 93 87 81 81 75 78 78 81 83 Wind dir NE E E NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Wind spd 9 10 9 11 13 14 14 14 13 13 16 14 14 14 14 14 14 14 16 13 13 Wind gust 25 25 24 24 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 OV B2 B2 PoP 12hr 90 90 80 70 20 QPF 12hr 0.32 0.56 0.55 0.21 0.01 Snow 12hr 00-00 00-00 00-00 Rain D L L L C C S S Rain shwrs S C C D L L L L D L Tstms C S S S S S Obvis PF PF Date 09/24 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 68 55 67 56 68 56 71 58 73 Temp 65 61 56 55 65 63 58 56 66 64 58 57 69 66 59 59 73 67 Dewpt 56 52 50 47 48 48 48 48 51 51 50 50 53 54 54 54 56 58 PWind dir NE N N NW NW NW NW N N Wind char GN GN BZ BZ BZ GN BZ GN GN Avg clouds B1 B1 B2 SC FW SC SC SC SC SC SC SC FW SC SC SC SC SC PoP 12hr 5 5 10 10 5 5 5 0 0 $$ MDZ013-220800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 502 PM EDT Mon Sep 21 2026 Date 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 64 55 66 55 Temp 67 66 64 63 61 62 63 62 62 60 58 57 55 59 64 65 63 59 57 56 55 Dewpt 61 62 61 59 58 59 60 59 58 56 55 53 52 54 56 58 55 54 52 52 52 RH 81 87 90 87 90 90 90 90 87 87 90 86 90 83 75 78 75 83 83 86 90 Wind dir NE E E NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Wind spd 9 10 10 11 13 13 13 14 13 13 13 13 13 13 14 14 13 12 13 12 12 Wind gust 23 25 25 24 24 24 24 25 25 24 23 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 PoP 12hr 90 80 70 50 20 QPF 12hr 0.30 0.44 0.32 0.12 0 Snow 12hr 00-00 00-00 00-00 Rain L L C C C C S S Rain shwrs C C L D L D L D L C Tstms S S S S S Obvis PF PF PF Date 09/24 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 68 52 68 54 69 55 72 55 74 Temp 66 61 55 52 66 62 56 55 67 64 56 56 71 66 58 56 72 66 Dewpt 56 54 50 48 50 51 49 50 53 54 51 52 55 56 55 56 58 59 PWind dir NE N N NW N NW N N N Wind char GN GN GN GN GN GN GN LT LT Avg clouds B1 SC B1 SC FW SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 5 5 20 10 5 10 5 0 5 Rain shwrs S $$ MDZ011-220800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 502 PM EDT Mon Sep 21 2026 Date 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 63 55 67 56 Temp 67 65 64 62 61 62 63 62 62 60 58 56 56 60 65 66 64 61 59 57 57 Dewpt 61 61 61 59 58 58 59 58 57 54 54 52 51 53 56 56 54 52 51 51 50 RH 81 87 90 90 90 87 87 87 84 81 86 86 83 78 73 70 70 72 75 80 77 Wind dir NE E E NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Wind spd 8 10 10 10 13 13 13 14 13 13 13 13 13 13 14 16 13 12 12 12 12 Wind gust 20 20 23 24 24 25 25 25 24 25 26 25 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 PoP 12hr 90 80 60 50 10 QPF 12hr 0.26 0.41 0.27 0.10 0 Snow 12hr 00-00 00-00 00-00 Rain L L C C C C Rain shwrs C C L D D D L D L C Tstms S S S S Date 09/24 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 69 54 69 57 70 56 73 57 74 Temp 67 63 56 55 67 64 57 57 67 65 58 57 71 67 59 58 73 67 Dewpt 55 49 49 46 46 47 48 48 49 50 50 50 51 52 54 53 53 55 PWind dir NE N N NW N NW N N N Wind char GN GN GN GN GN GN GN LT LT Avg clouds B1 SC B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 5 10 20 10 5 10 5 0 5 Rain shwrs S $$ WVZ052-220800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 502 PM EDT Mon Sep 21 2026 Date 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 59 60 52 62 51 Temp 63 62 61 61 59 59 59 59 58 57 56 55 53 55 59 61 59 56 54 53 52 Dewpt 61 60 60 59 58 57 57 56 55 54 53 52 50 51 53 54 53 52 50 49 47 RH 93 93 97 93 96 93 93 90 90 90 90 90 89 86 80 78 80 86 86 86 83 Wind dir NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Wind spd 5 4 8 8 9 10 10 10 9 9 10 9 9 10 10 9 8 8 9 9 9 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 B2 PoP 12hr 90 90 80 60 30 QPF 12hr 0.50 0.53 0.23 0.18 0.01 Snow 12hr 00-00 00-00 00-00 Rain D D L L C C C C Rain shwrs S L D D D D D D L L Tstms S S Obvis PF PF PF PF PF Date 09/24 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 65 47 66 48 68 50 71 51 72 Temp 63 56 50 49 64 59 52 50 66 62 53 52 70 63 54 52 71 63 Dewpt 52 50 48 46 45 47 46 46 49 49 49 48 50 52 52 52 53 56 PWind dir NE N N NW NW NW NW NW N Wind char GN LT GN GN GN GN GN LT LT Avg clouds B1 SC SC SC FW SC FW SC SC SC SC FW FW SC SC SC SC SC PoP 12hr 5 0 5 5 0 0 0 0 5 $$ VAZ506-220800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 502 PM EDT Mon Sep 21 2026 Date 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 64 54 64 53 Temp 67 65 64 64 62 62 62 61 61 59 58 56 55 57 61 63 62 59 57 55 54 Dewpt 62 62 62 62 59 59 60 60 59 57 55 54 53 54 55 59 57 55 52 51 51 RH 84 90 93 93 90 90 93 97 93 93 90 93 93 90 81 87 84 87 83 86 90 Wind dir NE E E NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE N Wind spd 6 6 8 9 11 12 11 11 11 11 12 12 12 12 11 11 11 11 11 11 11 Wind gust 21 21 23 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 PoP 12hr 90 90 90 70 30 QPF 12hr 0.35 0.71 0.62 0.21 0 Snow 12hr 00-00 00-00 00-00 Rain D D L L C C C C Rain shwrs S C L D D L D D D D Tstms S S S S S S Obvis PF PF PF PF PF Date 09/24 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 67 49 66 51 68 52 70 53 73 Temp 65 58 52 50 64 60 54 52 66 62 55 53 69 64 55 54 72 63 Dewpt 54 56 51 48 52 51 48 48 55 55 51 50 57 58 55 54 59 61 PWind dir NE N N NW NW NW NW NW N Wind char GN LT GN GN GN GN GN LT LT Avg clouds B1 SC B1 SC FW SC FW SC SC SC SC SC FW SC SC SC SC SC PoP 12hr 10 5 10 5 5 5 5 5 5 $$ VAZ037-220800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 502 PM EDT Mon Sep 21 2026 Date 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 66 55 62 54 Temp 68 66 65 64 64 65 64 62 62 60 59 57 56 56 59 61 59 59 58 56 54 Dewpt 64 63 64 64 63 63 62 61 60 58 57 56 54 55 56 59 58 56 54 53 53 RH 87 90 97100 97 93 93 97 93 93 93 96 93 96 90 93 96 90 86 90 96 Wind dir NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE N Wind spd 8 6 6 6 6 9 10 12 10 11 11 11 11 12 11 11 9 10 11 10 10 Wind gust 23 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV PoP 12hr 90 80 90 80 50 QPF 12hr 0.55 0.62 0.77 0.41 0.21 Snow 12hr 00-00 00-00 00-00 Rain D D D D L L C C C C S Rain shwrs S L D D D L L D L D Tstms S C C C S S S S Obvis PF PF PF PF PF PF PF PF PF PF PF PF PF PF Date 09/24 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 64 48 67 48 69 50 71 51 73 Temp 62 56 52 49 65 59 52 49 68 60 54 51 70 62 55 52 72 64 Dewpt 54 54 52 49 49 49 47 46 50 51 50 49 52 55 53 52 56 59 PWind dir N N N NW NW NW N NW N Wind char GN LT GN LT GN LT LT LT LT Avg clouds B2 B1 B1 SC FW FW FW FW FW FW FW FW FW SC SC SC SC SC PoP 12hr 20 0 5 0 0 0 0 0 5 Rain S $$ MDZ003-220800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 502 PM EDT Mon Sep 21 2026 Date 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 58 60 51 63 49 Temp 63 61 60 60 59 59 59 58 58 56 55 53 52 56 61 62 60 56 54 52 50 Dewpt 59 58 58 58 56 56 56 55 54 53 52 50 48 50 52 53 53 50 48 47 47 RH 87 90 93 93 90 90 90 90 86 90 90 89 86 80 72 72 78 80 80 83 89 Wind dir NE NE E NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Wind spd 6 6 8 9 11 11 11 10 9 9 10 11 10 11 11 10 9 9 10 10 10 Wind gust 19 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 B1 B2 B1 PoP 12hr 90 80 70 50 20 QPF 12hr 0.45 0.43 0.16 0.09 0 Snow 12hr 00-00 00-00 00-00 Rain L L C C C C S S Rain shwrs S L D D D D L C C C Tstms S Obvis PF PF PF PF Date 09/24 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 65 47 67 49 68 49 71 51 72 Temp 63 57 49 48 65 60 51 50 65 61 52 51 69 63 54 52 71 64 Dewpt 52 51 48 46 48 49 47 47 51 52 49 49 54 55 53 52 56 58 PWind dir NE N N N N NW NW N N Wind char GN LT GN GN GN LT GN LT LT Avg clouds SC SC SC SC FW SC SC SC SC SC SC SC FW SC SC SC SC SC PoP 12hr 5 5 5 5 0 0 0 0 5 $$ MDZ017-220800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 502 PM EDT Mon Sep 21 2026 Date 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 70 63 69 61 Temp 71 69 69 69 69 70 69 67 66 65 65 64 64 65 67 67 65 64 63 62 62 Dewpt 64 64 66 66 67 66 65 64 62 61 61 61 60 61 61 61 60 59 59 58 57 RH 79 84 90 90 93 87 87 90 87 87 87 90 87 87 81 81 84 84 87 87 84 Wind dir E E E E E E NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Wind spd 14 13 13 14 17 17 18 20 20 20 21 20 20 20 20 21 23 21 23 21 21 Wind gust 28 31 31 33 33 33 34 34 34 35 36 36 35 35 33 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 PoP 12hr 80 80 70 80 40 QPF 12hr 0.12 0.45 0.31 0.27 0.04 Snow 12hr 00-00 00-00 00-00 Rain L C D D C C C C S S Rain shwrs S L D L C L C L Tstms S S S S C S Obvis PF PF Date 09/24 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 69 58 69 58 70 59 71 60 72 Temp 68 64 62 60 67 65 61 59 67 65 61 61 69 67 62 62 71 67 Dewpt 59 57 54 53 53 52 52 53 54 55 55 54 55 57 57 58 57 59 PWind dir NE N N N N NW NW N N Wind char BZ BZ BZ GN BZ GN GN LT GN Avg clouds B2 B1 B2 B1 SC SC SC SC SC SC SC SC FW SC SC SC SC SC PoP 12hr 10 10 10 10 10 10 5 5 5 $$ WVZ502-220800- Petersburg WV 38.99N 79.15W Elev. 963 ft 502 PM EDT Mon Sep 21 2026 Date 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 60 63 52 59 49 Temp 63 62 61 62 61 62 62 60 58 57 55 54 53 54 57 58 55 54 53 51 50 Dewpt 60 60 60 60 60 60 59 57 56 54 54 53 52 51 54 54 52 51 51 50 49 RH 90 93 97 93 97 93 90 90 93 90 96 96 96 90 90 86 90 90 93 96 96 Wind dir N N NE NE NE NE NE NE NE NE N N NE NE NE NE NE N N NE NE Wind spd 4 3 3 3 3 4 6 6 5 5 5 5 5 5 5 5 4 4 5 4 4 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV PoP 12hr 90 100 100 80 60 QPF 12hr 0.42 0.62 0.31 0.36 0.14 Snow 12hr 00-00 00-00 00-00 Rain D D D D L L L L C C S Rain shwrs C D D D D D D D L D Tstms C C S S S Obvis PF PF PF PF PF PF PF PF PF PF PF PF PF Date 09/24 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 63 44 68 44 69 46 71 48 75 Temp 59 55 48 45 65 59 49 45 66 60 50 47 69 61 51 49 73 63 Dewpt 53 51 48 45 48 48 45 43 50 50 47 46 53 53 50 49 57 58 PWind dir NE N N NW NW W NW W N Wind char LT LT LT LT LT LT LT LT LT Avg clouds OV B1 SC SC FW FW FW FW FW SC SC SC SC SC SC SC SC SC PoP 12hr 20 5 5 5 0 0 0 5 5 Rain S $$ MDZ014-220800- Annapolis MD 38.99N 76.49W Elev. 7 ft 502 PM EDT Mon Sep 21 2026 Date 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 66 58 68 58 Temp 70 68 66 65 64 64 65 64 63 61 61 59 59 63 66 67 65 62 61 59 60 Dewpt 63 62 63 62 60 61 61 60 60 58 58 56 55 57 58 58 56 56 55 55 55 RH 78 81 90 90 87 90 87 87 90 90 90 90 87 81 75 73 73 81 81 87 84 Wind dir E E E E NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Wind spd 11 12 12 14 16 16 16 17 18 18 18 19 18 17 18 19 19 18 18 18 17 Wind gust 25 26 26 27 28 29 29 31 32 31 29 31 32 33 32 32 32 28 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 OV B2 B1 PoP 12hr 80 80 80 60 10 QPF 12hr 0.32 0.48 0.38 0.16 0 Snow 12hr 00-00 00-00 00-00 Rain L L L L C C Rain shwrs S C C D L L L L D L Tstms S S S S S Obvis PF Date 09/24 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 68 56 71 57 71 58 74 58 74 Temp 67 65 59 56 68 66 60 58 70 66 60 59 72 68 61 60 73 68 Dewpt 57 55 52 50 52 52 51 52 54 55 53 53 56 57 56 57 58 60 PWind dir NE N N N N NW N N N Wind char BZ GN BZ GN GN GN GN LT LT Avg clouds B2 B1 B2 SC SC SC SC SC SC SC SC SC SC SC B1 SC SC SC PoP 12hr 5 10 10 10 10 10 5 0 5 $$