Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
235 FOUS51 KLWX 241141 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 740 AM EDT Tue Sep 24 2024 VAZ054-242000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 740 AM EDT Tue Sep 24 2024 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 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 70 67 75 70 82 Temp 65 67 67 69 69 68 68 67 68 71 73 75 73 72 72 71 71 75 80 81 77 Dewpt 62 62 63 63 64 63 64 65 65 67 68 69 68 68 68 68 69 70 69 68 68 RH 90 84 87 81 84 84 87 93 90 87 84 82 84 87 87 90 93 84 69 65 74 Wind dir E E E SE E SE SE SE SE SE SE SE SE SE S S S S S S S Wind spd 10 12 11 13 12 12 10 9 9 10 11 11 9 8 6 5 5 8 8 9 8 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 B2 OV OV B2 B2 B2 PoP 12hr 40 70 60 40 20 QPF 12hr 0.02 0.31 0.09 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C L L L L L L L L C C S S S S S Tstms S S S S S Obvis PF Heat index 83 84 Max heat 83 84 Date Fri 09/27/24 Sat 09/28/24 Sun 09/29/24 Mon 09/30/24 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 71 77 68 76 62 74 60 74 Temp 73 71 76 75 70 69 74 71 65 63 72 70 64 62 73 71 Dewpt 68 69 69 67 67 66 66 64 62 61 60 60 60 60 60 60 PWind dir SE E E E E E E E Wind char LT GN GN GN LT GN LT LT Avg clouds B2 OV B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 40 30 20 20 20 20 30 Rain shwrs S S C C C C S S S S S S S S C C Tstms S S $$ MDZ013-242000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 740 AM EDT Tue Sep 24 2024 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 64 72 67 79 Temp 63 64 66 68 66 64 64 64 65 68 71 72 70 69 69 68 68 73 78 79 74 Dewpt 62 64 64 64 63 63 64 64 65 68 70 71 70 69 68 68 68 72 71 72 72 RH 97100 93 87 90 97100100100100 97 97100100 97100100 97 79 79 93 Wind dir E E E E E SE SE E SE SE SE SE SE SE S S S S S S S Wind spd 5 9 9 10 9 8 5 6 6 9 9 8 5 5 4 3 3 5 6 5 4 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 B2 PoP 12hr 40 60 60 50 20 QPF 12hr 0.02 0.18 0.12 0.03 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C L L L L L L C C C C S S Tstms S S S Obvis PF PF PF PF Coast Flood W W W W W W W Date Fri 09/27/24 Sat 09/28/24 Sun 09/29/24 Mon 09/30/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 76 65 74 60 74 58 73 Temp 69 67 75 72 68 67 73 69 62 61 72 68 60 60 70 66 Dewpt 68 67 67 67 65 65 65 63 61 60 60 60 58 58 59 60 PWind dir E E E E E E E E Wind char LT GN GN GN LT LT LT LT Avg clouds B2 OV B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 30 30 20 20 20 20 30 Rain shwrs S C C C S S S S S S S S S S C Tstms S S $$ MDZ011-242000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 740 AM EDT Tue Sep 24 2024 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 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 67 75 70 82 Temp 63 66 69 71 69 68 68 67 67 71 74 75 73 72 72 71 70 76 80 82 78 Dewpt 60 61 61 62 61 61 63 64 65 66 68 68 68 68 68 68 68 69 69 68 68 RH 90 84 76 73 76 78 84 90 93 84 82 79 84 87 87 90 93 79 69 63 71 Wind dir E E E SE E E SE E SE SE SE SE SE SE S S S S S S SE Wind spd 5 9 9 10 10 9 6 6 6 9 9 9 5 5 3 3 3 5 6 6 4 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 PoP 12hr 40 60 60 50 20 QPF 12hr 0.02 0.18 0.14 0.03 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C L L L L L L C C C C S S Tstms S S S Obvis PF Heat index 83 85 Max heat 83 85 Coast Flood Y Y Y Y Y Y Y Y Date Fri 09/27/24 Sat 09/28/24 Sun 09/29/24 Mon 09/30/24 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 70 79 68 76 62 75 61 75 Temp 72 70 77 75 71 68 74 70 65 62 72 69 66 63 73 71 Dewpt 67 65 65 64 63 63 63 61 59 58 58 57 58 57 59 60 PWind dir E E E E E E E E Wind char LT GN GN GN LT GN LT LT Avg clouds B2 OV B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 30 30 20 20 20 20 30 Rain shwrs S C C C S S S S S S S S S S C Tstms S S $$ WVZ052-242000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 740 AM EDT Tue Sep 24 2024 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 64 61 71 64 77 Temp 60 61 63 63 63 62 62 61 62 66 69 71 68 66 67 65 65 70 76 77 71 Dewpt 60 61 63 63 63 62 62 61 62 66 68 68 67 66 67 65 65 69 69 67 67 RH 100100100100100100100100100100 97 90 97100100100100 97 79 71 87 Wind dir SE SE SE SE SE SE SE SE SE SE SE SE SE SE S S S S S SE E Wind spd 8 10 10 10 8 9 9 9 8 8 8 6 4 3 2 2 2 5 5 5 3 Clouds OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 OV OV B2 B2 B1 B2 PoP 12hr 80 90 60 50 20 QPF 12hr 0.10 0.20 0.08 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L L D D L D L L L L C C C C S S Tstms S S S S S S S Obvis PF PF PF PF PF PF PF PF PF PF Date Fri 09/27/24 Sat 09/28/24 Sun 09/29/24 Mon 09/30/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 73 62 72 57 71 53 71 Temp 65 64 73 68 64 64 69 67 59 58 70 65 55 54 68 65 Dewpt 65 64 66 64 62 62 65 62 58 58 60 58 55 54 59 59 PWind dir E E E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds B2 OV B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 50 30 30 30 30 30 40 Rain shwrs S C C C S C C C C C S C C C C Tstms S S $$ VAZ506-242000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 740 AM EDT Tue Sep 24 2024 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 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 68 64 74 67 79 Temp 62 64 65 67 65 64 64 64 65 69 71 73 71 69 69 68 68 73 78 79 74 Dewpt 62 64 65 66 65 64 64 64 65 69 71 72 71 69 69 68 68 72 73 72 71 RH 100100100 97100100100100100100100 97100100100100100 97 85 79 90 Wind dir E SE SE SE SE SE SE SE SE SE SE SE SE SE S S S S S S S Wind spd 5 9 8 9 6 8 6 6 6 6 6 6 5 4 3 3 4 5 5 5 4 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 OV OV OV B2 B2 B2 PoP 12hr 60 70 60 50 20 QPF 12hr 0.06 0.34 0.07 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L C L L L L L L L L C C C C S S S Tstms S S S S S Obvis PF PF PF PF PF PF PF PF PF PF Date Fri 09/27/24 Sat 09/28/24 Sun 09/29/24 Mon 09/30/24 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 68 76 65 75 60 73 57 72 Temp 69 69 75 74 68 67 73 70 63 61 71 68 59 58 70 66 Dewpt 69 67 69 68 66 65 67 65 62 60 61 60 58 58 60 60 PWind dir SE E E E E E E E Wind char LT GN GN LT LT LT LT LT Avg clouds B2 OV B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 40 40 30 30 20 30 30 Rain shwrs S S C C C C C C C C S S C C C C Tstms S S $$ VAZ037-242000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 740 AM EDT Tue Sep 24 2024 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 66 64 74 66 78 Temp 63 63 64 65 65 64 64 64 64 67 71 73 70 68 68 67 66 72 76 77 73 Dewpt 62 63 64 64 64 64 64 64 64 66 68 69 69 68 68 67 66 68 68 67 68 RH 97100100 97 97100100100100 97 90 87 97100100100100 87 76 71 84 Wind dir E E E E E E E NE E SE SE SE SE SE S S S S S S SE Wind spd 4 5 5 5 4 4 3 2 2 3 3 3 2 2 1 1 2 4 5 5 3 Clouds OV OV OV OV OV OV OV OV B2 OV B2 B2 OV B2 B2 B2 B2 OV B2 B2 B2 PoP 12hr 70 80 60 40 20 QPF 12hr 0.28 0.62 0.12 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L L L D D L L C C L L C C C C S S S Tstms S S S C C S C C S S Obvis PF PF PF PF PF PF PF PF F PF Date Fri 09/27/24 Sat 09/28/24 Sun 09/29/24 Mon 09/30/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 74 64 74 60 71 58 72 Temp 67 66 71 72 68 65 73 70 64 61 69 67 61 59 71 67 Dewpt 67 66 68 67 66 64 65 63 62 60 60 59 59 57 58 59 PWind dir E E NE NE NE NE NE E Wind char LT GN LT LT LT LT LT LT Avg clouds B2 OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 40 60 50 40 30 30 30 30 Rain shwrs S C L L C C C C C C C C C C C C Tstms C C S $$ MDZ003-242000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 740 AM EDT Tue Sep 24 2024 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 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 66 62 71 66 78 Temp 60 62 64 65 64 63 63 62 63 67 70 71 70 68 68 67 67 71 76 78 73 Dewpt 60 62 64 64 64 63 63 62 63 67 70 70 69 68 68 67 67 71 71 70 70 RH 100100100 97100100100100100100100 97 97100100100100100 85 76 90 Wind dir E SE SE SE SE SE SE SE SE SE SE SE SE SE S S S SW SW S E Wind spd 5 9 9 10 6 8 8 8 5 6 6 6 5 4 3 3 3 4 5 5 3 Wind gust 18 18 Clouds OV OV OV OV OV OV OV OV OV OV B2 B2 OV OV OV OV B2 OV B2 B2 B2 PoP 12hr 80 90 60 50 20 QPF 12hr 0.13 0.18 0.07 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L D D L D L L L L C C C C S S Tstms S S S S S S S Obvis PF PF PF PF PF PF PF PF PF PF Date Fri 09/27/24 Sat 09/28/24 Sun 09/29/24 Mon 09/30/24 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 63 74 56 73 54 70 Temp 67 66 74 71 64 65 71 68 60 57 70 65 57 55 69 64 Dewpt 66 65 67 66 62 63 65 63 59 57 62 59 57 55 60 60 PWind dir NE E E E E E E NE Wind char LT LT LT LT LT LT LT LT Avg clouds B2 OV B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B2 B1 B1 B1 PoP 12hr 20 40 20 20 30 20 30 30 Rain shwrs S C C S S S S C S S S S C C C Tstms S $$ MDZ017-242000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 740 AM EDT Tue Sep 24 2024 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 73 67 77 69 81 Temp 66 69 71 72 69 67 67 67 69 73 75 77 73 71 71 70 71 76 79 80 75 Dewpt 62 63 64 64 63 63 64 65 68 68 69 69 69 68 68 68 69 71 70 69 69 RH 87 81 79 76 81 87 90 93 97 84 82 76 87 90 90 93 93 85 74 69 82 Wind dir E E SE SE SE SE SE SE SE SE SE SE SE SE S S S S S S S Wind spd 6 9 9 10 10 10 9 9 9 10 11 11 10 9 6 5 5 6 9 9 6 Clouds OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 20 40 50 30 10 QPF 12hr 0.01 0.15 0.10 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C C C C C C C C C S S S Tstms S S Obvis PF Heat index 83 Max heat 83 Coast Flood W W W W W Date Fri 09/27/24 Sat 09/28/24 Sun 09/29/24 Mon 09/30/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 78 67 77 64 75 62 76 Temp 71 72 77 73 69 70 77 70 66 65 74 68 63 63 73 69 Dewpt 69 70 70 68 68 67 66 62 62 61 60 59 59 61 62 61 PWind dir SE E E E E E E E Wind char LT GN GN GN GN GN GN GN Avg clouds B2 OV B2 B2 B2 B2 B1 B1 B1 SC SC SC B1 B1 B1 B1 PoP 12hr 20 30 30 20 20 20 20 20 Rain shwrs S S C C C C S S S S S S S S S Tstms S S S $$ WVZ502-242000- Petersburg WV 38.99N 79.15W Elev. 963 ft 740 AM EDT Tue Sep 24 2024 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 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 61 78 62 81 Temp 62 66 69 71 68 64 63 61 62 69 76 77 72 66 66 63 63 72 79 80 74 Dewpt 62 64 64 64 63 64 63 61 62 66 68 66 67 66 65 63 63 66 66 65 66 RH 100 93 84 79 84100100100100 90 76 69 84100 97100100 81 64 60 76 Wind dir NE N SE SE N SE E SE E S SE SE SE S S S S S SE SE E Wind spd 3 5 6 8 5 4 2 2 2 3 4 4 3 2 2 2 2 2 4 5 3 Clouds OV OV OV OV OV OV OV OV OV OV B2 B2 B2 OV B2 B2 B2 B2 B2 B2 B2 PoP 12hr 80 90 60 50 20 QPF 12hr 0.27 0.52 0.11 0.05 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L D D D L D C C L L C C C C S S S S S Tstms S S S C C C C C C C S Obvis PF PF PF PF PF PF PF PF F PF Heat index 82 Max heat 83 Date Fri 09/27/24 Sat 09/28/24 Sun 09/29/24 Mon 09/30/24 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 75 61 74 57 73 53 73 Temp 64 63 74 71 66 62 73 68 61 58 70 65 57 55 70 64 Dewpt 64 63 65 65 64 62 63 61 59 58 60 59 57 55 56 56 PWind dir E E E E E E SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds B2 OV B2 B2 B2 B2 B1 B1 B1 B2 B1 B1 B1 B1 B1 B1 PoP 12hr 40 60 50 30 30 40 30 40 Rain shwrs S C L C C C C C C C C C C C C C Tstms S S $$ MDZ014-242000- Annapolis MD 38.99N 76.49W Elev. 7 ft 740 AM EDT Tue Sep 24 2024 Date Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 70 66 73 69 78 Temp 65 66 68 69 67 66 66 67 68 70 71 72 72 71 71 70 69 73 77 78 74 Dewpt 62 62 63 62 62 63 64 65 66 67 69 69 69 69 69 69 69 70 70 69 69 RH 90 87 84 78 84 90 93 93 93 90 93 90 90 93 93 97100 90 79 74 84 Wind dir E E E SE E SE SE SE SE SE SE SE SE SE S S S S S S S Wind spd 6 10 10 11 11 10 8 8 8 10 11 10 9 8 5 5 5 8 9 9 5 Clouds OV OV OV OV OV OV OV OV B2 OV OV OV B2 B2 B2 OV B2 OV B2 B2 B2 PoP 12hr 30 60 60 40 20 QPF 12hr 0.01 0.16 0.16 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C C L L L L L C C C C S S Tstms S S S Obvis PF PF Coast Flood W W W W W W W Date Fri 09/27/24 Sat 09/28/24 Sun 09/29/24 Mon 09/30/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 69 75 67 74 63 73 62 72 Temp 71 69 73 72 70 68 71 71 66 63 70 69 64 62 70 68 Dewpt 69 68 68 67 66 66 66 62 61 61 60 59 59 59 60 61 PWind dir SE E E E E E E E Wind char LT GN GN GN GN GN GN GN Avg clouds B2 OV B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 30 30 20 20 20 20 30 Rain shwrs S C C C C S S S S S S S S C C Tstms S S $$