Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
566 FOUS51 KLWX 220536 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 136 AM EDT Sun Sep 22 2024 VAZ054-222000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 136 AM EDT Sun Sep 22 2024 Date Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 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 75 64 75 64 72 Temp 68 67 69 72 74 71 69 67 66 65 70 71 72 70 68 66 66 64 67 69 70 69 Dewpt 66 64 65 64 62 62 62 61 60 60 60 60 60 58 59 60 60 61 61 61 61 61 RH 93 90 87 76 66 73 78 81 81 84 71 68 66 66 73 81 81 90 81 76 73 76 Wind dir E E E E E E E SE E E SE SE SE SE SE E E E E E E E Wind spd 6 6 9 8 5 5 5 5 5 5 9 9 10 9 9 9 8 8 10 10 10 9 Clouds OV OV OV OV B1 B1 B1 B2 B1 B1 B2 B2 B2 B2 B2 OV B2 OV OV OV OV OV PoP 12hr 20 0 10 40 50 QPF 12hr 0.01 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs D S S S S C C C C C C L Tstms S Date Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 Sat 09/28/24 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 76 67 79 65 77 63 76 Temp 67 67 74 73 69 68 77 74 68 65 75 71 66 63 73 70 Dewpt 63 64 66 65 66 65 64 63 61 60 60 58 58 59 58 56 PWind dir SE SE SE N NE NE NE NE Wind char GN GN GN GN GN GN GN GN Avg clouds OV OV OV OV B2 B2 B2 B1 B1 B1 B1 B1 B1 SC B1 SC PoP 12hr 60 50 50 30 20 20 20 20 Rain shwrs L L C C C C C C S S S S S S S S Tstms S S S S S $$ MDZ013-222000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 136 AM EDT Sun Sep 22 2024 Date Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 61 72 62 71 Temp 66 66 67 71 72 69 65 63 63 63 68 70 71 67 64 63 63 62 67 69 69 67 Dewpt 63 63 65 65 64 64 63 61 60 60 61 60 61 61 59 59 59 61 63 62 63 62 RH 90 90 93 81 76 84 93 93 90 90 78 71 71 81 84 87 87 97 87 78 81 84 Wind dir E E E E E NE SE E E E E SE SE E E E E E E E E E Wind spd 6 6 5 5 4 2 4 3 3 4 5 6 6 5 5 4 4 5 6 8 9 8 Clouds OV OV OV B1 SC SC B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 OV OV B2 B2 OV OV PoP 12hr 20 5 10 40 30 QPF 12hr 0.01 0 0 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L S S C C C C C C C C L Tstms S Coast Flood W W W W W W W W Flood A Date Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 Sat 09/28/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 73 64 77 61 76 60 74 Temp 64 65 71 69 66 66 75 71 64 63 74 68 63 61 72 68 Dewpt 62 64 68 68 66 66 68 65 63 62 62 61 60 60 61 60 PWind dir SE SE SE NE NE NE NE NE Wind char LT LT LT LT LT GN LT GN Avg clouds OV OV OV OV B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC PoP 12hr 60 60 50 30 20 20 20 20 Rain shwrs L L C L C C C C S S S S S S S S Tstms S S S S $$ MDZ011-222000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 136 AM EDT Sun Sep 22 2024 Date Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 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 78 64 75 64 74 Temp 67 66 70 73 75 72 70 68 66 64 70 71 73 71 68 66 66 64 69 70 71 70 Dewpt 63 62 63 62 61 61 60 60 59 59 58 58 58 58 58 59 59 59 60 60 61 60 RH 87 87 78 68 62 68 71 76 78 84 66 63 59 63 70 78 78 84 73 71 71 71 Wind dir E E E E E E SE SE E E E SE SE SE E E E E E E E E Wind spd 6 6 5 5 3 2 3 2 2 4 5 6 6 5 5 4 4 5 6 9 9 8 Clouds OV OV B2 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 OV B2 B2 OV B2 B2 PoP 12hr 20 5 10 40 30 QPF 12hr 0 0 0 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C C C C C C C L Tstms S Coast Flood Y Y Y Y Y Y Y Y Flood A Date Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 Sat 09/28/24 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 76 67 79 63 78 63 77 Temp 67 66 74 74 70 67 77 75 69 63 76 71 67 63 74 71 Dewpt 62 62 66 65 65 64 64 63 60 59 59 58 58 58 58 57 PWind dir SE SE SE NE NE NE NE NE Wind char LT GN LT GN LT GN LT GN Avg clouds OV OV B2 OV B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC PoP 12hr 60 60 50 30 20 20 20 20 Rain shwrs L L L L C C C C S S S S S S S S Tstms S S S S $$ WVZ052-222000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 136 AM EDT Sun Sep 22 2024 Date Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 71 59 69 58 66 Temp 65 66 66 69 70 65 62 62 61 62 64 67 68 64 61 61 59 59 62 64 65 62 Dewpt 64 64 65 65 64 63 62 62 61 61 61 62 62 61 61 60 59 59 61 62 62 62 RH 97 93 97 87 81 93100100100 97 90 84 81 90100 97100100 97 93 90100 Wind dir NE E E E E E SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE Wind spd 3 4 5 5 5 4 3 4 6 8 10 10 10 6 5 6 8 6 9 9 10 6 Clouds B2 OV OV B2 B2 B2 B1 OV B2 OV B2 B2 B2 OV OV OV OV OV B2 OV B2 OV PoP 12hr 30 10 50 60 70 QPF 12hr 0.01 0 0.01 0.10 0.16 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C C C C C L L C C L L L Tstms S S S S S Obvis PF PF PF PF PF Date Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 Sat 09/28/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 72 60 75 57 73 54 71 Temp 61 61 70 67 63 62 73 67 60 59 71 64 57 57 69 64 Dewpt 61 61 65 65 63 62 63 62 60 58 60 58 56 56 58 57 PWind dir SE SE SE NE N NE NE E Wind char LT LT LT LT LT GN LT GN Avg clouds OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC PoP 12hr 70 70 50 40 20 20 20 20 Rain shwrs L L L L C C C C S S S S S S S S Tstms S S S S S $$ VAZ506-222000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 136 AM EDT Sun Sep 22 2024 Date Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 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 72 62 72 61 69 Temp 68 67 68 70 72 68 65 64 63 63 67 70 70 67 64 63 61 62 65 67 68 67 Dewpt 66 65 68 67 66 65 65 63 62 62 63 63 63 63 62 62 61 62 64 64 64 64 RH 93 93100 90 81 90100 97 97 97 87 78 78 87 93 97100100 97 90 87 90 Wind dir E E E E E E SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE Wind spd 4 8 5 5 4 3 2 4 4 5 6 6 8 5 5 5 5 5 6 6 6 5 Clouds OV OV OV OV B1 B1 B1 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV OV PoP 12hr 20 5 30 50 50 QPF 12hr 0.01 0 0 0.01 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C C C C C C C C C L Tstms S Obvis PF PF PF Date Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 Sat 09/28/24 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 73 63 77 61 75 58 73 Temp 64 64 71 71 66 65 75 72 64 62 73 68 61 60 71 68 Dewpt 64 64 69 68 66 65 68 66 64 62 64 62 60 60 62 60 PWind dir SE SE SE NW NE NE NE NE Wind char LT LT LT LT LT LT LT LT Avg clouds OV OV B2 OV B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC PoP 12hr 60 60 50 40 20 20 20 20 Rain shwrs L L C L C C C C S S S S S S S S Tstms S S S S S $$ VAZ037-222000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 136 AM EDT Sun Sep 22 2024 Date Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 61 72 61 69 Temp 65 65 70 73 73 69 66 64 64 62 66 70 71 68 66 64 63 62 65 67 68 65 Dewpt 64 64 66 66 65 65 65 64 63 62 62 63 63 63 63 63 62 62 63 64 63 63 RH 97 97 87 79 76 87 97100 97100 87 78 76 84 90 97 97100 93 90 84 93 Wind dir N N NE NE E NE E SE SE SE SE S SE SE SE SE E E SE E E E Wind spd 2 3 5 5 5 4 2 2 2 3 5 6 5 4 3 3 3 3 4 5 5 3 Clouds B1 B2 B2 B1 SC B2 B2 B2 OV B2 B2 B2 B2 B2 B2 B2 OV B2 OV OV B2 OV PoP 12hr 10 10 40 40 50 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C C C C C C C L Tstms S S Obvis PF PF PF PF PF PF Date Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 Sat 09/28/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 74 63 77 59 74 56 73 Temp 64 63 72 70 66 63 75 71 64 60 72 67 61 57 71 67 Dewpt 64 63 67 65 65 63 64 63 62 60 60 59 58 57 59 58 PWind dir E SE E N NE NE NE NE Wind char LT LT LT LT LT LT LT LT Avg clouds OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC PoP 12hr 70 60 40 40 20 20 20 20 Rain shwrs L L C L C C C C S S S S S S S S Tstms S S S S S S $$ MDZ003-222000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 136 AM EDT Sun Sep 22 2024 Date Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 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 71 61 69 59 67 Temp 66 65 67 69 70 67 64 63 62 62 64 66 68 65 62 61 61 60 63 64 66 64 Dewpt 64 63 66 67 66 65 63 62 61 61 63 63 63 62 61 60 59 60 63 63 63 62 RH 93 93 97 93 87 93 97 97 97 97 97 90 84 90 97 97 93100100 97 90 93 Wind dir E E E E E SE SE SE SE SE SE SE SE E SE SE SE E SE SE SE SE Wind spd 4 5 3 4 4 3 2 4 5 6 9 9 8 5 5 5 5 5 6 8 8 5 Clouds B2 B2 OV B2 B2 B1 B2 OV OV B2 OV B2 B2 OV OV OV OV B2 OV B2 OV OV PoP 12hr 20 10 50 60 60 QPF 12hr 0.01 0 0.01 0.14 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C C C L L L L C C L L D Obvis PF PF Date Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 Sat 09/28/24 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 71 62 76 58 75 56 72 Temp 62 62 69 69 64 64 74 70 62 59 73 66 60 57 70 66 Dewpt 62 62 68 67 64 64 67 64 62 59 62 60 58 57 60 59 PWind dir SE SE SE W NE NE NE NE Wind char LT LT LT LT LT LT LT LT Avg clouds OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC PoP 12hr 80 70 50 40 20 20 20 20 Rain shwrs D D L L C C C C S S S S S S S S Tstms S S S S $$ MDZ017-222000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 136 AM EDT Sun Sep 22 2024 Date Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 63 76 64 75 Temp 69 68 71 73 74 70 66 64 64 66 71 73 73 69 66 65 65 67 71 73 73 70 Dewpt 65 65 65 64 63 62 60 60 59 60 59 59 59 59 59 59 59 61 61 62 62 62 RH 87 90 81 73 69 76 81 87 84 81 66 62 62 70 78 81 81 81 71 68 68 76 Wind dir SE E E E E E E E E E E E SE SE E E E E E E E E Wind spd 11 11 9 6 6 5 5 5 4 5 6 6 8 8 8 6 5 6 8 8 10 9 Clouds OV OV B2 B1 B1 B1 SC B1 B1 SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 20 0 5 30 50 QPF 12hr 0.01 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs D S S C C C C S S C Tstms S Coast Flood Y Y Y Y Y Date Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 Sat 09/28/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 78 67 79 66 77 64 77 Temp 67 68 76 72 69 69 77 73 68 68 75 70 66 66 75 70 Dewpt 64 65 67 67 67 67 67 65 65 63 62 61 62 62 61 60 PWind dir SE SE SE SE E NE E NE Wind char LT GN LT GN GN GN GN GN Avg clouds B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 50 40 40 30 20 20 20 20 Rain shwrs C C C C C C C C S S S S S S S S Tstms S S S S $$ WVZ502-222000- Petersburg WV 38.99N 79.15W Elev. 963 ft 136 AM EDT Sun Sep 22 2024 Date Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 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 60 77 59 73 Temp 61 61 69 78 80 71 66 64 61 62 69 74 75 70 66 63 61 61 67 72 72 68 Dewpt 60 60 64 63 62 63 63 63 61 62 63 64 64 63 64 63 61 61 63 64 63 62 RH 97 97 84 60 54 76 90 97100100 81 71 69 78 93100100100 87 76 73 81 Wind dir W W NE E E E SE SE SE SE S SE SE SE SE SE SE SE SE SE SE SE Wind spd 2 2 1 3 4 3 2 3 4 4 5 6 6 4 3 2 2 2 4 5 5 5 Clouds SC B2 B2 SC SC B1 OV B2 OV B2 OV B2 B2 B2 OV B2 OV OV OV B2 B2 OV PoP 12hr 10 20 70 70 80 QPF 12hr 0 0 0.07 0.02 0.26 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C L L L L L L L L D D L Tstms S S C S S S S S S C Obvis PFPF+ PF PF PF PF Heat index 81 Max heat 81 Date Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 Sat 09/28/24 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 59 78 58 79 55 77 53 75 Temp 62 61 76 72 63 60 77 72 60 58 75 67 58 54 73 68 Dewpt 62 61 64 64 63 60 63 62 60 58 59 58 56 54 57 56 PWind dir SE S S N NE NE E NE Wind char LT LT LT LT LT LT LT LT Avg clouds OV B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC PoP 12hr 60 60 40 30 20 20 20 20 Rain shwrs L L L L C C C C S S S S S S S S Tstms C S S S S $$ MDZ014-222000- Annapolis MD 38.99N 76.49W Elev. 7 ft 136 AM EDT Sun Sep 22 2024 Date Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 73 64 72 64 71 Temp 67 67 68 71 72 70 67 66 65 65 68 70 71 69 66 66 65 64 67 69 70 68 Dewpt 64 63 63 63 62 62 62 61 60 60 59 59 59 59 60 60 60 61 61 62 62 61 RH 90 87 84 76 71 76 84 84 84 84 73 68 66 70 81 81 84 90 81 78 76 78 Wind dir E E E E NE E SE SE E E E E SE SE E E E E E E E E Wind spd 9 9 8 6 5 3 5 4 3 5 8 8 8 8 8 5 5 6 9 10 10 10 Clouds OV OV B2 B1 SC SC B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B2 PoP 12hr 20 0 10 30 30 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L S S S S C C C C C C L Tstms S Coast Flood W W W W W W W W Flood A Date Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 Sat 09/28/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 73 66 76 64 74 62 72 Temp 67 66 72 71 68 68 74 72 67 64 72 69 65 62 71 69 Dewpt 63 65 67 67 66 66 66 64 63 62 61 60 60 60 60 59 PWind dir SE SE SE SE E NE NE NE Wind char GN GN LT GN LT GN LT GN Avg clouds B2 OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 SC B1 SC SC PoP 12hr 60 50 50 30 20 20 20 20 Rain shwrs L L C C C C C C S S S S S S S S Tstms S S S S $$