Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
387 FOUS51 KLWX 201856 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 256 PM EDT Fri Sep 20 2024 VAZ054-202000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 256 PM EDT Fri Sep 20 2024 Date Fri 09/20/24 Sat 09/21/24 Sun 09/22/24 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 66 83 67 76 Temp 84 78 72 69 67 66 75 80 80 74 71 69 68 67 70 73 74 71 Dewpt 60 60 62 63 63 63 63 63 63 63 64 64 64 65 64 63 63 62 RH 44 54 71 81 87 90 66 56 56 69 79 84 87 93 81 71 69 73 Wind dir SE SE SE S S S S S S SE SE SE E E E E E E Wind spd 6 8 8 5 4 4 5 8 8 8 8 6 8 8 9 9 9 9 Clouds SC SC FW SC SC SC SC B1 B1 B2 B2 B2 B2 OV B2 B2 B2 B1 PoP 12hr 0 0 40 60 10 QPF 12hr 0 0 0.03 0.14 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L L C C Tstms S C C C S Heat index 84 81 81 Max heat 83 84 81 83 Date Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 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 64 75 66 78 66 78 Temp 66 65 72 70 66 66 73 70 68 68 76 72 68 66 75 72 Dewpt 60 61 59 57 58 60 60 60 62 63 65 63 63 62 61 60 PWind dir E SE SE SE SE SE E NE Wind char LT GN GN GN GN GN LT GN Avg clouds B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 0 10 30 30 40 50 50 40 Rain shwrs C C C C C C C C C C C C Tstms S S S S S $$ MDZ013-202000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 256 PM EDT Fri Sep 20 2024 Date Fri 09/20/24 Sat 09/21/24 Sun 09/22/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 63 81 64 73 Temp 81 74 69 66 65 65 73 79 79 72 68 67 65 65 69 71 71 68 Dewpt 60 63 64 64 63 64 64 64 64 65 65 64 64 65 65 64 64 63 RH 49 69 84 93 93 97 73 60 60 79 90 90 97100 87 79 79 84 Wind dir E SE SE S S SE SE SE SE SE SE SE E E E E E E Wind spd 5 6 3 2 2 3 5 6 6 5 3 3 4 5 8 6 6 6 Clouds SC SC SC FW SC SC SC SC B1 B2 OV B2 OV OV B2 B2 B2 B1 PoP 12hr 0 0 30 60 10 QPF 12hr 0 0 0.18 0.21 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C C Tstms C C C Heat index 82 Max heat 83 83 82 Coast Flood Y Y Y Y Y Y Y Y Y A A A A A A A A A Date Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 73 61 73 62 75 63 76 Temp 62 62 71 68 62 62 71 69 63 64 73 70 65 63 74 70 Dewpt 60 60 60 61 59 60 62 63 62 64 67 66 65 63 64 64 PWind dir E SE SE SE SE SE SE NE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 0 10 30 30 40 50 50 40 Rain shwrs C C C C C C C C C C C C Tstms S S S S $$ MDZ011-202000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 256 PM EDT Fri Sep 20 2024 Date Fri 09/20/24 Sat 09/21/24 Sun 09/22/24 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 85 67 83 67 76 Temp 85 79 74 70 68 67 75 81 81 74 72 70 68 67 72 74 74 70 Dewpt 59 61 63 63 63 63 62 62 62 63 64 64 64 63 63 61 61 60 RH 41 54 69 78 84 87 64 53 53 69 76 81 87 87 73 64 64 71 Wind dir E SE SE S SE SE SE SE SE SE SE SE E E E E E E Wind spd 5 6 4 3 3 3 4 6 6 5 6 6 6 8 8 8 6 5 Clouds SC SC SC FW SC SC SC SC B1 B2 B2 B2 OV OV B2 B2 B1 B1 PoP 12hr 0 0 30 60 10 QPF 12hr 0 0 0.30 0.19 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C C Tstms C S C Heat index 85 82 82 Max heat 83 85 82 83 Coast Flood Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 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 75 63 75 65 78 66 79 Temp 66 64 73 69 66 65 73 70 67 67 76 72 69 67 78 71 Dewpt 60 58 58 57 58 58 59 59 62 62 64 63 63 62 61 60 PWind dir E SE SE SE SE SE E NE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 0 10 30 30 50 50 50 40 Rain shwrs C C C C C C C C C C C C Tstms S S S S $$ WVZ052-202000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 256 PM EDT Fri Sep 20 2024 Date Fri 09/20/24 Sat 09/21/24 Sun 09/22/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 58 79 61 73 Temp 80 72 64 61 60 61 70 77 78 70 64 63 62 62 67 72 72 67 Dewpt 59 60 61 61 60 61 63 65 65 65 64 63 62 62 65 64 64 63 RH 49 66 90100100100 78 67 64 84100100100100 93 76 76 87 Wind dir SE SE S SE SE SE S SE SE SE E E E E E E E E Wind spd 4 3 2 3 2 4 8 8 6 4 2 2 2 3 6 6 6 5 Clouds FW FW FW SC SC B1 SC B1 B2 B1 B2 B1 B2 B2 B2 B2 B2 B2 PoP 12hr 0 5 60 50 10 QPF 12hr 0 0 0.28 0.40 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C S S Tstms S C C S S Heat index 81 Max heat 81 Date Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 68 58 70 59 73 58 73 Temp 62 59 68 66 60 59 68 65 61 61 71 68 62 58 71 67 Dewpt 61 59 61 61 59 58 63 61 61 61 64 63 61 58 59 58 PWind dir SE SE SE SE SE SE SE S Wind char LT GN LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 10 30 50 50 60 60 40 40 Rain shwrs C C C C C C L L L L C C C C Tstms S S C S S S $$ VAZ506-202000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 256 PM EDT Fri Sep 20 2024 Date Fri 09/20/24 Sat 09/21/24 Sun 09/22/24 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 63 83 64 74 Temp 82 74 68 66 64 65 74 81 81 73 69 67 65 64 69 72 72 68 Dewpt 60 62 64 64 63 64 66 67 67 67 66 66 65 64 68 67 66 65 RH 47 66 87 93 97 97 76 63 63 81 90 97100100 97 84 81 90 Wind dir E SE SE S S S S S S SE SE SE E E E E E E Wind spd 4 4 4 3 2 3 5 6 6 5 3 3 3 4 6 6 6 5 Clouds SC SC SC SC B1 B1 SC SC B1 B2 B2 B2 OV B2 B2 B2 B2 B2 PoP 12hr 0 0 40 60 10 QPF 12hr 0 0 0.16 0.22 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L C C Tstms S C S C S Heat index 82 83 83 Max heat 83 83 83 86 Date Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 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 72 61 74 62 77 62 77 Temp 63 62 71 69 63 62 71 70 64 63 74 71 65 62 74 71 Dewpt 62 61 63 61 60 60 65 63 62 63 69 66 65 62 64 63 PWind dir SE SE SE SE SE SE SE N Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 5 20 30 40 50 50 50 40 Rain shwrs S S C C C C C C C C C C C C Tstms S S S S $$ VAZ037-202000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 256 PM EDT Fri Sep 20 2024 Date Fri 09/20/24 Sat 09/21/24 Sun 09/22/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 60 81 62 79 Temp 80 71 66 63 62 61 73 78 77 70 66 65 63 63 72 77 76 69 Dewpt 60 61 62 62 61 61 64 66 66 66 66 65 63 63 66 65 65 64 RH 51 71 87 97 97100 73 67 69 87100100100100 81 67 69 84 Wind dir SE SE SW S S S S S S S S SW N NE NE NE NE E Wind spd 4 2 1 1 1 2 5 6 5 4 2 2 1 2 4 6 6 5 Clouds FW FW FW SC SC SC SC SC B1 B1 B1 SC B1 B1 B1 SC B1 B1 PoP 12hr 0 0 50 40 10 QPF 12hr 0 0 0.24 0.19 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C Tstms C C C S Obvis PF PF PF Heat index 81 Max heat 81 82 82 Date Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 72 60 73 62 76 59 75 Temp 65 62 70 69 64 62 71 69 64 63 74 70 64 60 73 69 Dewpt 63 61 63 62 62 60 63 63 63 63 65 63 62 60 59 59 PWind dir E SE SE SE SE S N N Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 B1 PoP 12hr 10 20 30 40 50 50 40 40 Rain shwrs S S C C C C C C C C C C C C Tstms S C S S S $$ MDZ003-202000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 256 PM EDT Fri Sep 20 2024 Date Fri 09/20/24 Sat 09/21/24 Sun 09/22/24 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 61 81 63 73 Temp 81 73 66 64 62 63 73 79 80 73 67 65 64 63 67 71 72 68 Dewpt 59 62 61 62 62 63 66 67 67 67 66 65 64 63 66 66 65 64 RH 47 68 84 93100100 79 67 65 81 97100100100 97 84 79 87 Wind dir SE SE SE S S SE S S S SE E SE E E E E E E Wind spd 4 4 3 4 3 4 6 6 6 4 2 2 2 3 5 5 6 5 Clouds FW FW FW SC B1 B1 SC B1 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 PoP 12hr 0 5 60 60 10 QPF 12hr 0 0 0.06 0.24 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L L C C Tstms S S C S S Heat index 81 82 Max heat 82 83 82 Date Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 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 70 59 71 61 74 60 75 Temp 62 61 69 67 62 60 69 67 63 62 71 69 63 61 72 68 Dewpt 62 60 63 61 60 60 64 63 62 62 67 65 63 61 64 62 PWind dir SE SE SE SE SE SE SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 10 30 50 50 60 60 50 40 Rain shwrs C C C C C C L L L L C C C C Tstms S S S S S $$ MDZ017-202000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 256 PM EDT Fri Sep 20 2024 Date Fri 09/20/24 Sat 09/21/24 Sun 09/22/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 65 80 65 76 Temp 80 73 69 67 65 67 74 77 77 71 68 66 65 67 70 73 74 70 Dewpt 63 65 63 63 62 63 63 63 63 63 64 64 64 65 64 64 63 61 RH 56 76 81 87 90 87 69 62 62 76 87 93 97 93 81 73 69 73 Wind dir E SE SE SE SE E E SE SE SE SE SE SE E E E E E Wind spd 6 10 5 3 3 5 5 6 8 8 5 5 5 6 10 10 10 10 Clouds SC SC FW FW FW SC FW SC SC B1 B1 B2 OV B2 B2 B2 B2 B1 PoP 12hr 0 0 10 40 10 QPF 12hr 0 0 0 0.12 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C Tstms S S S S Heat index 81 Max heat 82 83 Coast Flood Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 75 63 76 66 79 65 79 Temp 64 65 73 70 64 66 74 70 66 68 76 72 67 67 77 72 Dewpt 60 60 60 58 59 60 61 61 62 65 66 65 65 65 64 63 PWind dir E SE E SE SE SE SE E Wind char LT LT LT LT LT LT LT GN Avg clouds B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 PoP 12hr 0 5 20 20 30 40 40 40 Rain shwrs S S S S C C C C C C C C Tstms S S C C S $$ WVZ502-202000- Petersburg WV 38.99N 79.15W Elev. 963 ft 256 PM EDT Fri Sep 20 2024 Date Fri 09/20/24 Sat 09/21/24 Sun 09/22/24 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 85 58 87 57 84 Temp 85 76 65 62 60 60 76 85 82 72 67 63 59 58 71 81 82 72 Dewpt 57 59 59 59 58 59 63 63 64 65 65 63 59 58 63 62 61 62 RH 39 56 81 90 93 96 64 48 55 79 93100100100 76 53 49 71 Wind dir SE S S S S S S S S S SW W NW E NE NE E E Wind spd 4 3 2 2 2 2 2 4 4 3 2 1 1 1 3 4 5 3 Clouds SC SC SC SC SC SC SC B1 B1 B1 SC SC B1 B1 SC FW SC B1 PoP 12hr 10 5 60 30 10 QPF 12hr 0 0 0.07 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C C C Tstms C C C Obvis PF PF PF Heat index 86 83 82 83 Max heat 84 84 86 87 82 84 Date Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 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 77 59 79 58 80 56 78 Temp 63 61 76 71 63 61 77 73 63 60 79 70 61 57 75 69 Dewpt 62 60 63 62 62 61 65 63 62 60 63 61 60 57 59 57 PWind dir SE S S SE S SW SW W Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 B1 B1 B1 PoP 12hr 10 40 40 60 50 50 30 40 Rain shwrs C C C C L L C C C C C C C C Tstms S C S S C C S S S $$ MDZ014-202000- Annapolis MD 38.99N 76.49W Elev. 7 ft 256 PM EDT Fri Sep 20 2024 Date Fri 09/20/24 Sat 09/21/24 Sun 09/22/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 66 77 65 71 Temp 80 74 70 68 67 66 72 75 76 73 69 68 67 65 68 70 71 68 Dewpt 62 63 64 64 63 63 63 63 64 64 65 65 65 64 63 63 62 62 RH 54 69 81 87 87 90 73 66 66 73 87 90 93 97 84 78 73 81 Wind dir E SE SE S S SE SE SE SE SE SE SE E E E E E E Wind spd 6 8 5 3 2 3 5 8 6 6 4 4 5 5 10 10 9 9 Clouds FW FW FW FW SC SC SC SC SC B2 B2 B2 OV OV B2 B2 B1 B1 PoP 12hr 0 0 30 60 10 QPF 12hr 0 0 0.07 0.25 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C C Tstms C C C Heat index 81 Max heat 81 Coast Flood Y Y Y Y Y Y Y Y Y A A A A A A A A A Date Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 Thu 09/26/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 71 63 71 65 74 65 74 Temp 65 65 70 69 64 65 70 69 66 67 72 71 67 65 72 70 Dewpt 60 60 59 58 59 60 60 60 62 64 66 64 65 65 64 62 PWind dir E SE SE SE SE SE SE NE Wind char LT GN LT GN LT GN LT GN Avg clouds B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 0 10 30 30 40 50 50 40 Rain shwrs C C C C C C C C C C C C Tstms S S S S $$