Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
033 FOUS51 KLWX 211738 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 138 PM EDT Sat Sep 21 2024 VAZ054-212000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 138 PM EDT Sat Sep 21 2024 Date Sat 09/21/24 Sun 09/22/24 Mon 09/23/24 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 83 68 75 65 76 Temp 81 81 73 71 70 69 68 70 71 73 71 69 67 65 67 70 74 75 71 Dewpt 64 65 67 66 66 66 65 64 63 63 62 62 61 60 61 59 59 59 58 RH 56 58 81 84 87 90 90 81 76 71 73 78 81 84 81 68 59 58 63 Wind dir S S S S SE E E E E E E SE SE SE E SE SE SE SE Wind spd 6 6 9 6 6 6 9 10 8 6 6 5 5 5 6 9 9 10 9 Clouds SC B1 OV B1 B2 B2 B2 B2 B2 SC B1 B1 B1 B2 B2 B2 B2 B2 B2 PoP 12hr 40 60 20 0 10 QPF 12hr 0.02 0.24 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C S S S Tstms S C C C S S Obvis PF Heat index 83 83 Max heat 83 83 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 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 64 72 66 75 66 78 64 77 Temp 66 66 70 70 68 68 73 71 68 68 76 72 67 66 75 71 Dewpt 60 61 61 61 62 64 65 65 65 64 63 61 61 60 59 57 PWind dir SE SE SE SE S NW NW N Wind char GN GN GN GN LT GN GN GN Avg clouds B2 B2 OV OV OV OV OV B2 B2 B2 B2 B1 SC SC SC SC PoP 12hr 40 50 60 70 50 30 20 20 Rain shwrs S C C C L L L L C C C C S S S S Tstms S S C C S $$ MDZ013-212000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 138 PM EDT Sat Sep 21 2024 Date Sat 09/21/24 Sun 09/22/24 Mon 09/23/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 64 75 62 73 Temp 78 78 71 67 66 65 65 67 72 74 70 64 63 63 62 68 71 72 69 Dewpt 66 65 67 67 66 65 65 65 64 64 63 62 61 60 61 61 60 60 60 RH 67 64 87100100100100 93 76 71 78 93 93 90 97 78 68 66 73 Wind dir SE SE SE SE SE E E E E E E E SE E E E SE SE SE Wind spd 6 6 4 4 4 5 5 5 5 4 3 4 3 3 4 5 6 6 5 Clouds B1 B1 OV B2 B2 OV B2 B2 B1 SC B1 B1 B2 B2 B2 B1 B2 B2 B2 PoP 12hr 40 60 20 5 10 QPF 12hr 0.01 0.59 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C S S C Tstms S C C C S S S Obvis PF PF Coast Flood W W W W W W W W W W W W Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 69 62 73 63 76 61 76 Temp 63 63 68 67 63 64 72 69 65 65 75 71 64 63 74 70 Dewpt 60 61 63 63 62 64 68 67 65 65 66 64 62 62 62 61 PWind dir SE E SE SE S NW NW N Wind char LT LT LT LT LT LT LT LT Avg clouds B2 OV OV OV OV OV OV B2 B2 B2 B2 B1 SC SC SC SC PoP 12hr 40 30 60 70 60 30 20 20 Rain shwrs C C C C L L L L L L C C S S S S Tstms C C C S $$ MDZ011-212000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 138 PM EDT Sat Sep 21 2024 Date Sat 09/21/24 Sun 09/22/24 Mon 09/23/24 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 80 67 77 65 76 Temp 79 79 74 71 68 68 67 70 74 75 72 69 67 66 65 70 73 75 70 Dewpt 65 64 65 65 66 65 63 62 62 61 60 60 60 59 58 58 58 58 58 RH 62 60 74 81 93 90 87 76 66 62 66 73 78 78 78 66 59 55 66 Wind dir SE SE SE E SE E E E E E E SE SE E E E SE SE SE Wind spd 6 6 3 3 4 4 5 5 5 4 2 3 2 2 4 6 6 6 5 Clouds B1 B1 OV B2 B2 OV B2 B2 SC SC B1 B1 B2 B1 B2 B2 B1 B2 B2 PoP 12hr 40 60 20 5 10 QPF 12hr 0.01 0.50 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C S S C Tstms S C C C S S S Coast Flood Y Y Y Y Y Y Y Y Y Y Y Y Y Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 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 64 73 65 76 65 79 64 78 Temp 66 65 71 69 67 67 74 71 68 67 77 73 68 66 77 72 Dewpt 59 59 61 61 62 63 65 64 64 63 63 61 61 59 59 58 PWind dir SE E SE SE S NW NW N Wind char LT LT LT LT LT LT LT GN Avg clouds B2 OV OV OV OV OV OV B2 B2 B2 B1 B1 SC SC SC SC PoP 12hr 40 30 60 70 60 30 20 20 Rain shwrs C C C C L L L L L L C C S S S S Tstms C C C S $$ WVZ052-212000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 138 PM EDT Sat Sep 21 2024 Date Sat 09/21/24 Sun 09/22/24 Mon 09/23/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 61 72 59 70 Temp 77 77 67 65 65 63 63 66 68 70 67 62 62 61 60 65 68 70 66 Dewpt 65 67 67 65 64 63 63 65 65 64 63 62 62 61 60 61 62 61 62 RH 67 71100100 97100100 97 90 81 87100100100100 87 81 73 87 Wind dir SE SE E S E N E E E E E SE SE SE SE SE SE SE SE Wind spd 6 5 2 2 2 2 2 4 5 6 3 3 5 6 8 10 10 10 5 Clouds SC B2 B2 B1 B2 B2 B2 B2 B2 B1 B1 B1 B2 OV B2 B2 B2 B2 OV PoP 12hr 60 50 30 10 50 QPF 12hr 0.24 0.28 0.02 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S C C S S C C C C C Tstms C C C S S S Obvis PF PF PF PF Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 66 60 71 59 73 56 72 Temp 61 60 65 64 61 61 69 66 62 61 71 67 59 58 70 66 Dewpt 61 60 63 62 61 61 65 64 61 61 63 60 58 57 59 57 PWind dir SE SE SE SE S NW NW N Wind char LT GN LT LT LT LT LT LT Avg clouds OV OV B2 B2 OV OV B2 B2 B2 B2 B1 SC SC B1 SC SC PoP 12hr 60 70 70 70 40 30 20 20 Rain shwrs C L C L L L L L C C C C S S S S Tstms S S S S S C C $$ VAZ506-212000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 138 PM EDT Sat Sep 21 2024 Date Sat 09/21/24 Sun 09/22/24 Mon 09/23/24 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 65 73 61 73 Temp 81 81 71 67 68 66 65 68 70 72 69 64 63 62 61 68 71 72 69 Dewpt 66 66 70 67 67 66 65 68 67 66 65 64 63 62 61 63 63 63 62 RH 60 60 97100 97100100100 90 81 87100100100100 84 76 73 78 Wind dir S S S SE SE E E E E E NE SE SE SE SE SE SE SE SE Wind spd 8 6 4 3 2 3 5 5 5 5 3 2 4 4 5 6 6 6 5 Wind gust 14 Clouds SC B2 OV B2 B1 B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 OV PoP 12hr 60 50 20 5 30 QPF 12hr 0.07 0.20 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C S S C C C Tstms C C C C S S Obvis PF PF PF Heat index 83 83 Max heat 83 84 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 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 61 69 62 73 63 76 59 75 Temp 63 62 68 67 64 64 71 70 65 65 74 70 63 61 75 68 Dewpt 62 62 66 64 64 64 68 67 65 64 67 64 62 61 63 61 PWind dir SE SE SE SE S NW NW N Wind char LT LT LT LT LT LT LT LT Avg clouds OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 SC SC SC SC PoP 12hr 50 50 60 70 50 30 20 20 Rain shwrs C C C C L L L L C C C C S S S S Tstms S S C C S $$ VAZ037-212000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 138 PM EDT Sat Sep 21 2024 Date Sat 09/21/24 Sun 09/22/24 Mon 09/23/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 63 77 61 73 Temp 80 78 70 66 66 64 65 70 74 75 68 65 64 63 61 67 70 72 69 Dewpt 66 66 67 66 66 64 64 66 65 65 64 64 64 62 61 61 62 62 62 RH 62 67 90100100100 97 87 74 71 87 97100 97100 81 76 71 78 Wind dir S S SW SW SW W NE NE NE NE NE E SE SE SE SE S S SE Wind spd 6 6 3 2 1 2 3 4 5 6 5 2 2 2 3 5 5 5 2 Clouds SC B2 B2 B2 SC B1 B1 B2 B1 SC B1 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 60 50 10 10 40 QPF 12hr 0.21 0.27 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S C C C Tstms C C C Obvis PF PF F F Heat index 82 Max heat 82 82 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 71 62 74 61 76 57 75 Temp 64 62 69 68 64 64 72 69 64 62 74 69 61 59 73 69 Dewpt 63 61 63 64 64 64 66 65 64 62 62 60 59 57 58 57 PWind dir SE SE SE S NW NW NW NE Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 OV B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC SC PoP 12hr 40 50 70 60 40 30 20 20 Rain shwrs C C C C L L L L C C C C S S S S Tstms S S S S S S $$ MDZ003-212000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 138 PM EDT Sat Sep 21 2024 Date Sat 09/21/24 Sun 09/22/24 Mon 09/23/24 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 80 63 73 60 71 Temp 79 79 70 66 66 64 65 67 69 71 68 63 63 62 61 65 69 70 67 Dewpt 66 67 69 66 66 64 65 66 67 66 64 63 62 61 61 62 63 63 62 RH 64 67 97100100100100 97 93 84 87100 97 97100 90 81 78 84 Wind dir S SE SE SE E NE E E E E E SE SE SE SE SE SE SE SE Wind spd 8 6 3 2 2 2 3 3 4 4 3 3 4 5 6 9 10 9 5 Clouds SC B2 B2 B1 B2 B2 B2 B2 B2 B1 B1 B2 B2 OV B2 B2 B2 B2 OV PoP 12hr 60 50 20 10 50 QPF 12hr 0.10 0.20 0.02 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C S S C C C C L Tstms C C C C S Obvis PF PF PF PF Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 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 67 60 71 60 74 57 74 Temp 62 60 66 65 62 62 69 68 64 62 73 69 61 59 72 68 Dewpt 61 60 64 63 62 62 67 66 64 62 65 63 60 59 62 60 PWind dir SE SE SE SE S NW NW N Wind char LT LT LT LT LT LT LT LT Avg clouds OV OV B2 B2 OV OV B2 B2 B2 B2 B1 SC B1 SC B1 SC PoP 12hr 60 60 80 70 50 30 20 20 Rain shwrs L L C L D D L L C C C C S S S S Tstms S C C C $$ MDZ017-212000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 138 PM EDT Sat Sep 21 2024 Date Sat 09/21/24 Sun 09/22/24 Mon 09/23/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 66 76 63 76 Temp 75 74 70 67 67 66 66 70 73 75 70 66 65 63 65 70 74 75 70 Dewpt 64 64 65 66 66 65 66 65 64 63 62 60 59 59 60 59 59 58 59 RH 69 71 84 97 97 97100 84 73 66 76 81 81 87 84 68 59 55 68 Wind dir SE SE SE SE SE SE E E E E E E E E E E E SE E Wind spd 8 8 6 6 6 6 8 9 8 6 6 6 5 5 5 6 6 8 8 Clouds SC SC OV B2 B2 B2 B2 B2 B2 B1 SC SC SC B1 B1 SC SC B1 B1 PoP 12hr 10 50 20 0 5 QPF 12hr 0 0.16 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C S S Tstms S C C S S Obvis PF Coast Flood Y Y Y Y Y Y Y Y Y Y Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 64 74 66 77 65 78 64 78 Temp 65 66 73 70 67 68 75 72 68 67 76 72 67 66 76 71 Dewpt 60 61 62 62 63 65 67 66 66 66 66 65 63 62 62 61 PWind dir E SE SE SE S N NW NE Wind char LT GN LT GN LT GN LT GN Avg clouds B1 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B1 SC SC SC SC PoP 12hr 30 50 50 60 50 30 20 20 Rain shwrs C C S C C L L C C C C S S S S Tstms S S C S $$ WVZ502-212000- Petersburg WV 38.99N 79.15W Elev. 963 ft 138 PM EDT Sat Sep 21 2024 Date Sat 09/21/24 Sun 09/22/24 Mon 09/23/24 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 84 58 83 59 78 Temp 83 79 69 65 62 59 60 70 80 81 71 65 63 61 60 70 76 77 72 Dewpt 61 65 66 65 62 59 60 64 62 61 63 63 62 61 60 62 63 63 63 RH 47 62 90100100100100 81 54 51 76 93 97100100 76 64 62 73 Wind dir E E W SW SW SE NW NE NE NE E SE S S SE S S SE SE Wind spd 3 5 2 2 1 1 1 1 3 4 3 3 3 4 4 5 6 6 5 Clouds SC B2 SC SC SC SC B1 B1 SC SC B1 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 60 40 10 20 70 QPF 12hr 0.22 0.02 0 0 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C S S C C L L L Tstms C C C S S S C Obvis F F F Heat index 83 81 82 Max heat 83 82 81 83 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 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 76 60 79 58 78 53 77 Temp 63 61 74 71 62 61 77 72 61 59 76 70 58 55 75 69 Dewpt 62 61 64 64 62 61 65 62 61 59 60 58 56 55 57 56 PWind dir S SE SE S SW NW W N Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 SC SC SC SC SC PoP 12hr 70 80 60 60 30 30 20 20 Rain shwrs L L L D L L L L C C C C S S S S Tstms C S S S C S S C C $$ MDZ014-212000- Annapolis MD 38.99N 76.49W Elev. 7 ft 138 PM EDT Sat Sep 21 2024 Date Sat 09/21/24 Sun 09/22/24 Mon 09/23/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 66 73 63 72 Temp 76 77 74 70 68 67 66 68 70 72 70 67 65 65 64 68 70 72 69 Dewpt 65 64 66 67 66 65 65 64 63 63 62 62 61 60 60 59 58 58 59 RH 69 64 76 90 93 93 97 87 78 73 76 84 87 84 87 73 66 61 70 Wind dir SE SE SE SE SE E E E E NE E SE E E E E E SE SE Wind spd 6 6 4 5 5 5 6 9 8 6 5 5 3 4 5 8 8 9 9 Clouds SC B1 OV B2 B2 OV B2 B2 B1 SC SC B1 B1 B1 B1 B1 B1 B2 B2 PoP 12hr 30 60 20 0 10 QPF 12hr 0 0.53 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S S Tstms C C C S S Obvis PF Coast Flood W W W W W W W W W W W W Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 Fri 09/27/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 64 70 65 73 65 75 63 74 Temp 65 65 68 68 66 67 72 71 68 67 73 71 67 65 72 70 Dewpt 60 60 61 62 63 65 67 66 66 65 65 63 63 62 61 60 PWind dir SE E SE SE S W NW N Wind char LT GN LT GN LT GN LT GN Avg clouds B2 OV B2 B2 B2 OV B2 B2 B2 B2 B1 SC SC SC SC SC PoP 12hr 30 30 60 70 60 30 20 20 Rain shwrs S C C C L L L L L L C C S S S S Tstms S C C S $$