Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
824 FOUS51 KLWX 041807 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 207 PM EDT Sat May 4 2024 VAZ054-042000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 207 PM EDT Sat May 4 2024 Date Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 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 58 56 73 65 81 Temp 58 57 56 56 56 60 63 70 73 70 67 65 65 68 73 79 81 75 Dewpt 53 52 52 52 54 56 60 62 63 62 63 64 64 65 66 65 64 64 RH 83 83 86 86 93 87 90 76 71 76 87 97 97 90 79 62 56 69 Wind dir E E E E E E SE S S SE S S S SW SW SW SW SW Wind spd 10 10 10 10 10 10 10 9 10 8 6 5 4 4 6 6 6 4 Clouds OV OV OV OV OV OV OV OV OV OV B2 B2 OV B2 B2 B2 B2 B2 PoP 12hr 80 90 80 50 50 QPF 12hr 0.07 0.14 0.18 0.01 0.06 Snow 12hr 00-00 00-00 00-00 Drizzle AR Rain shwrs L C C L D D C L L C C S S C C L Tstms S C C S C C Obvis PF PF Heat index 83 Max heat 83 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 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 82 68 88 68 86 66 77 Temp 67 68 78 77 70 70 87 80 70 71 84 77 68 68 75 69 Dewpt 63 65 64 64 65 66 66 65 64 66 66 64 60 59 55 52 PWind dir W SE S SW SW SW W NW Wind char LT LT LT GN LT GN GN GN Avg clouds B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 SC SC B1 SC PoP 12hr 60 50 20 30 50 70 50 60 Rain shwrs L C C C S C C C C L C S L Tstms C S C C C S S C C S $$ MDZ013-042000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 207 PM EDT Sat May 4 2024 Date Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 57 53 70 63 81 Temp 56 56 54 53 53 55 60 66 68 67 64 63 63 65 71 79 80 74 Dewpt 52 51 51 52 52 54 59 61 62 62 63 63 62 64 66 66 65 66 RH 86 83 90 96 96 96 96 84 81 84 97100 97 97 84 64 60 76 Wind dir E E E E E E SE SE SE S S S S SW SW SW S S Wind spd 10 10 11 9 9 9 9 9 10 6 6 4 4 4 5 4 4 4 Clouds OV OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 PoP 12hr 80 80 80 50 50 QPF 12hr 0.05 0.13 0.24 0.04 0.04 Snow 12hr 00-00 00-00 00-00 Drizzle AR Rain shwrs D L C L D D L L L C C S S S C C C Tstms S C S C C Obvis PF PF Heat index 82 Max heat 83 Coast Flood W W W Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 79 64 85 64 82 62 74 Temp 65 65 77 75 66 67 83 79 68 68 81 74 66 64 72 67 Dewpt 63 64 64 64 64 66 66 66 64 65 67 65 61 59 54 53 PWind dir NW SE S SW SW SW W NW Wind char LT LT LT GN GN GN GN GN Avg clouds B2 B2 B1 SC B1 B1 B1 B1 B1 B1 B2 B2 SC SC B1 SC PoP 12hr 50 50 30 40 50 70 50 50 Rain shwrs C C C C C C C C C L C C C Tstms C S S C C S S C C S $$ MDZ011-042000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 207 PM EDT Sat May 4 2024 Date Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 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 59 57 73 66 85 Temp 58 58 58 57 58 58 63 69 73 69 71 66 67 67 76 82 84 75 Dewpt 51 49 50 50 51 53 56 59 61 61 61 62 63 64 64 64 64 64 RH 77 72 75 77 77 83 78 70 66 76 71 87 87 90 66 55 51 69 Wind dir E E E E E E E SE SE SE S S S SW SW SW S SW Wind spd 10 10 10 9 9 9 9 9 9 6 5 4 4 3 4 4 4 3 Clouds OV OV OV OV OV OV OV OV OV OV OV B2 OV B2 B2 B1 B2 B2 PoP 12hr 80 80 80 50 50 QPF 12hr 0.05 0.13 0.30 0.05 0.04 Snow 12hr 00-00 00-00 00-00 Drizzle AR Rain shwrs D L C L D D D L L C C S S S S C C C Tstms S C S C C Obvis PF PF Heat index 83 85 Max heat 83 86 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 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 85 71 91 71 87 68 81 Temp 68 69 82 78 72 73 89 82 73 74 85 76 70 70 78 69 Dewpt 63 62 62 62 63 64 65 64 63 64 65 63 60 58 54 51 PWind dir NW SE S SW SW SW W NW Wind char LT LT LT GN LT GN GN GN Avg clouds B2 B2 B1 SC B1 B1 B1 B1 B1 B1 B2 B2 SC SC B1 SC PoP 12hr 50 50 30 40 50 80 50 50 Rain shwrs C C C C C C C C C D C C C Tstms C S C C S S C C S $$ WVZ052-042000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 207 PM EDT Sat May 4 2024 Date Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 55 52 71 59 79 Temp 54 55 54 53 52 53 57 65 69 68 63 61 59 61 70 78 78 73 Dewpt 51 49 50 50 51 53 55 58 60 60 60 59 58 61 62 62 62 61 RH 90 80 86 89 96100 93 78 73 76 90 93 96100 76 58 58 66 Wind dir E E SE SE E E SE SE SE SE S S S SW W W W N Wind spd 9 9 10 6 6 5 5 8 9 6 5 3 2 3 3 4 4 4 Clouds OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B1 B2 B2 B2 PoP 12hr 90 100 90 40 60 QPF 12hr 0.05 0.34 0.24 0.01 0.08 Snow 12hr 00-00 00-00 00-00 Drizzle AR Rain shwrs D L D D D D C C C C C S S L L C Tstms S C C C C Obvis PF PF PF Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 60 79 61 84 62 80 59 71 Temp 63 62 76 75 64 65 82 78 65 64 77 74 64 60 68 65 Dewpt 60 60 62 62 61 63 64 61 60 63 63 59 56 57 52 49 PWind dir NW S S SW SW SW W NW Wind char LT LT LT GN LT GN GN GN Avg clouds B2 B2 B1 B1 B1 B2 B1 SC SC B2 B2 B1 SC SC B1 SC PoP 12hr 50 60 30 50 50 80 40 60 Rain shwrs C C C L C S S C C C L D C S C L Tstms C S C S C C S S C C S $$ VAZ506-042000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 207 PM EDT Sat May 4 2024 Date Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 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 56 54 73 63 81 Temp 56 56 55 55 55 57 63 68 73 69 65 65 63 65 74 79 80 74 Dewpt 53 53 53 53 54 56 61 63 64 64 64 64 63 65 66 66 65 66 RH 90 90 93 93 96 96 93 84 73 84 97 97100100 76 64 60 76 Wind dir E E E E E E SE S S SE S S S SW SW SW SW NW Wind spd 8 9 9 9 9 8 8 9 9 6 5 5 4 4 4 3 3 3 Clouds OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 80 100 90 50 60 QPF 12hr 0.06 0.21 0.17 0.01 0.08 Snow 12hr 00-00 00-00 00-00 Drizzle AR Rain shwrs D C L D D D L L C C C S S L L L Tstms S C C C C C Obvis PF PF PF Heat index 82 Max heat 83 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 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 80 64 87 64 83 62 74 Temp 65 65 78 76 66 68 86 79 68 68 81 76 66 64 72 67 Dewpt 63 65 64 65 65 66 66 67 64 65 67 64 59 59 54 53 PWind dir NW SW S SW SW SW W NW Wind char LT LT LT GN LT GN GN GN Avg clouds B2 B2 B1 SC SC B1 B1 B1 SC B2 B2 B1 SC SC B1 SC PoP 12hr 60 60 20 40 50 80 40 60 Rain shwrs L C C L S C C C C D C C L Tstms C S C C C S S C C S $$ VAZ037-042000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 207 PM EDT Sat May 4 2024 Date Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 59 59 75 64 84 Temp 57 59 59 59 60 60 65 70 75 72 68 64 64 67 77 83 82 75 Dewpt 53 52 54 54 55 56 59 61 61 61 61 61 60 62 63 63 62 62 RH 86 78 83 83 84 87 81 73 62 68 78 90 87 84 62 51 51 64 Wind dir NE NE NE NE NE NE S S S S S SW SW SW SW S S SW Wind spd 5 6 5 5 5 4 3 4 5 3 3 3 3 3 5 6 5 4 Clouds OV OV OV OV OV OV OV B2 B2 B2 B2 B2 OV B2 B1 B1 B2 B2 PoP 12hr 80 100 80 40 60 QPF 12hr 0.10 0.68 0.19 0.01 0.07 Snow 12hr 00-00 00-00 00-00 Drizzle AR Rain shwrs D L D D D D L L C C C S S L L C Tstms S C C C C C C Obvis PF PF PF Heat index 84 83 Max heat 84 85 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 85 67 91 67 88 65 79 Temp 66 67 81 78 69 71 90 81 70 71 85 78 68 68 77 70 Dewpt 61 62 63 62 62 63 62 62 61 63 63 60 56 57 54 51 PWind dir W SW SW SW SW SW W W Wind char LT LT LT GN LT GN GN GN Avg clouds B2 B2 B1 SC SC SC SC SC SC B1 B2 B1 SC SC B1 SC PoP 12hr 50 70 20 30 40 70 30 60 Rain shwrs C S C L S C C C C L C C L Tstms C S C C C S S C C S $$ MDZ003-042000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 207 PM EDT Sat May 4 2024 Date Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 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 55 52 69 61 79 Temp 55 55 53 52 52 53 57 64 67 66 63 61 61 62 69 77 78 70 Dewpt 51 51 51 51 51 53 56 60 61 61 62 61 60 62 65 64 62 63 RH 86 86 93 96 96100 96 87 81 84 97100 97100 87 64 58 78 Wind dir E E SE SE E E SE SE S SE S S S SW W W W N Wind spd 9 9 10 8 6 5 6 8 9 6 6 5 3 3 3 4 4 4 Clouds OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B1 B2 PoP 12hr 80 100 90 50 50 QPF 12hr 0.05 0.37 0.26 0.02 0.08 Snow 12hr 00-00 00-00 00-00 Drizzle AR Rain shwrs D L D D D D L C C C C S S C C C Tstms S C C C C Obvis PF PF PF Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 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 78 63 84 63 80 59 71 Temp 62 63 76 74 65 67 82 77 65 66 78 72 64 60 69 64 Dewpt 61 62 63 64 62 64 66 64 62 64 65 62 58 56 53 50 PWind dir N SW S SW SW SW W NW Wind char LT LT LT GN LT GN GN GN Avg clouds B2 B2 B1 B1 B1 B2 B1 SC B1 B2 B2 B1 SC SC B1 B1 PoP 12hr 40 60 30 50 50 80 40 60 Rain shwrs C C C L C S S C C C L D C S C L Tstms C S S S C C S S C C S $$ MDZ017-042000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 207 PM EDT Sat May 4 2024 Date Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 61 58 74 65 81 Temp 60 59 58 58 59 63 70 74 74 70 67 67 65 69 76 81 79 72 Dewpt 53 54 54 55 56 59 61 62 61 63 63 63 63 65 66 66 64 65 RH 78 83 86 90 90 87 73 66 64 78 87 87 93 87 71 60 60 79 Wind dir E E E E SE SE SE SE SE S S S S S SW S S S Wind spd 13 13 14 14 14 13 14 13 13 11 10 8 6 8 9 8 8 6 Clouds OV OV OV OV OV OV B2 OV OV OV OV B2 B2 B2 B2 B2 B1 B1 PoP 12hr 40 60 60 50 50 QPF 12hr 0.06 0.04 0.10 0.02 0.03 Snow 12hr 00-00 00-00 00-00 Drizzle AR Rain shwrs C S C L L C C L L C C S S S S C C C Tstms S S S S S C Obvis PF Heat index 83 Max heat 83 83 Coast Flood W W W Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 80 66 85 67 83 64 77 Temp 67 69 77 73 67 69 84 76 69 70 81 74 67 66 76 68 Dewpt 64 65 65 64 63 65 66 66 64 65 67 66 62 60 57 56 PWind dir SW S S SW SW SW W W Wind char LT LT LT GN GN GN GN GN Avg clouds B2 B2 B1 SC SC B1 B1 B1 B1 B1 B1 B1 SC SC SC B1 PoP 12hr 50 50 20 20 40 60 50 50 Rain shwrs C C C C S S C S S L C S C Tstms C S S S C S S C C S $$ WVZ502-042000- Petersburg WV 38.99N 79.15W Elev. 963 ft 207 PM EDT Sat May 4 2024 Date Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 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 59 55 77 59 82 Temp 59 58 57 56 55 56 65 74 77 71 65 61 59 61 76 81 81 74 Dewpt 56 55 55 55 55 56 60 62 64 63 61 60 58 61 64 63 62 62 RH 90 90 93 96100100 84 66 64 76 87 97 96100 66 54 53 66 Wind dir E NE NE N NE NE SE S S S S SW SW SW W W NW SW Wind spd 5 4 4 2 2 2 4 6 5 3 3 2 2 2 3 4 3 4 Clouds OV OV OV OV OV OV OV B2 B2 B2 B1 B1 B2 B1 B1 B2 B2 B2 PoP 12hr 80 90 80 40 70 QPF 12hr 0.04 0.26 0.31 0.01 0.19 Snow 12hr 00-00 00-00 00-00 Drizzle AR Rain shwrs D L D D D L L D D C C C C L L C Tstms S C C C S C C C Obvis PF PF PF Heat index 82 82 Max heat 82 83 Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 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 81 62 86 63 82 59 72 Temp 64 62 77 76 65 67 83 79 66 66 79 74 64 60 69 64 Dewpt 60 61 63 64 61 63 64 63 61 63 64 59 56 55 52 50 PWind dir SW SW SW W SW SW W W Wind char LT LT LT GN GN BZ BZ GN Avg clouds B2 B2 B1 B1 B1 B1 B1 SC B1 B1 B2 B1 B1 B1 B1 B1 PoP 12hr 50 70 30 50 60 80 40 60 Rain shwrs C C C L C C S C C L L D C S C L Tstms C S C S S C C S C C C S $$ MDZ014-042000- Annapolis MD 38.99N 76.49W Elev. 7 ft 207 PM EDT Sat May 4 2024 Date Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 57 55 71 64 79 Temp 57 56 55 56 56 59 62 67 69 66 64 64 64 66 72 76 79 74 Dewpt 53 52 52 53 53 56 59 62 62 61 63 63 64 65 66 67 66 65 RH 86 86 90 90 90 90 90 84 78 84 97 97100 97 81 74 64 74 Wind dir E E E E E SE SE S S S S S S S SW S S S Wind spd 11 11 12 11 11 11 11 12 12 10 9 6 5 5 5 6 5 5 Clouds OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 PoP 12hr 80 70 80 50 50 QPF 12hr 0.05 0.09 0.19 0.04 0.04 Snow 12hr 00-00 00-00 00-00 Drizzle AR Rain shwrs L C C L L L D L L C C S S S S C C C Tstms S S S C C Obvis PF PF Coast Flood W W W Date Tue 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 78 66 83 67 81 65 75 Temp 65 66 74 73 68 69 80 77 69 70 79 74 68 67 73 67 Dewpt 64 64 65 64 65 66 67 66 64 65 68 65 61 59 57 54 PWind dir W SE S SW SW SW W NW Wind char LT LT LT GN GN GN GN GN Avg clouds B2 B2 B1 SC B1 B1 B1 B1 B1 B1 B1 B2 B1 SC B1 SC PoP 12hr 50 50 20 30 50 70 50 50 Rain shwrs C C C C S C C C C L C S C Tstms C S S C C S S C C S $$