Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
131 FOUS51 KLWX 080842 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 441 AM EDT Wed May 8 2024 VAZ054-082000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 441 AM EDT Wed May 8 2024 Date Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 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 90 67 79 60 70 Temp 67 70 80 87 90 83 76 72 69 69 72 75 74 67 65 63 61 60 64 66 66 62 Dewpt 65 66 66 62 60 60 61 61 61 62 62 62 62 60 58 57 55 54 52 49 48 47 RH 93 87 62 43 37 46 60 68 76 78 71 64 66 78 78 81 81 81 65 54 52 58 Wind dir S S W W W W SW SW S S S SW W N N W W NW NW NW NW NW Wind spd 5 4 9 12 13 6 4 4 4 5 9 11 12 8 6 6 6 9 13 14 14 11 Clouds B2 B2 SC SC SC SC SC SC B1 OV OV B2 B2 B1 B1 B1 B2 B1 B1 B1 B1 SC PoP 12hr 20 50 90 40 40 QPF 12hr 0 0.01 0.19 0.02 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S S C C C L L D D C C C C C C S Tstms S S S S S C C C S S S Heat index 82 87 90 83 Max heat 87 90 81 Date Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 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 52 71 53 72 53 75 57 79 Temp 54 54 67 63 57 57 68 66 58 58 72 70 61 61 75 72 Dewpt 47 46 43 46 48 49 46 45 47 48 48 48 51 54 55 55 PWind dir NW W SW W NW W S S Wind char GN GN LT GN LT GN GN GN Avg clouds SC FW SC B1 B1 SC SC SC SC FW SC SC SC SC SC SC PoP 12hr 20 30 40 30 10 10 20 30 Rain shwrs S C C S S C S S C Tstms S S S S $$ MDZ013-082000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 441 AM EDT Wed May 8 2024 Date Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 63 74 56 66 Temp 64 69 79 87 89 83 73 68 64 65 68 71 70 65 62 59 57 57 61 64 64 60 Dewpt 64 66 66 62 60 59 60 59 58 59 60 60 61 60 58 56 55 54 52 50 49 48 RH 100 90 64 43 38 44 64 73 81 81 76 68 73 84 87 90 93 90 72 60 58 64 Wind dir S SW W W W W W W NE E SW SW N N NE W NW W NW NW NW N Wind spd 4 5 9 12 12 6 5 4 4 4 8 9 10 8 5 6 6 11 13 14 14 11 Clouds OV OV SC SC SC FW SC SC B1 OV OV B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 20 40 90 50 40 QPF 12hr 0 0.01 0.20 0.05 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C L L D D C C S S C C C C S Tstms S S S C C C S S S S S S Heat index 87 89 83 Max heat 87 89 Coast Flood Y Y Date Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 69 51 70 51 74 54 77 Temp 52 52 67 63 55 56 67 65 55 57 71 68 59 60 73 69 Dewpt 47 47 44 48 49 50 47 48 49 50 48 50 52 54 55 56 PWind dir NW W SW NW W W S S Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC B1 B1 SC SC SC SC FW SC SC SC SC SC SC PoP 12hr 20 30 50 30 10 10 20 30 Rain shwrs S C C S C C S S S C Tstms S S S $$ MDZ011-082000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 441 AM EDT Wed May 8 2024 Date Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 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 88 69 79 60 72 Temp 67 70 82 88 88 84 79 72 70 70 73 75 74 67 66 65 62 60 65 67 68 62 Dewpt 64 65 64 61 58 58 59 58 57 58 58 60 59 58 56 55 54 52 50 49 48 47 RH 90 84 55 40 36 41 50 61 63 66 59 60 59 73 70 70 75 75 58 52 49 58 Wind dir S SW W W W W W W N E E S NW NE NE NW NW NW NW NW NW N Wind spd 3 5 8 12 12 6 5 4 4 5 6 10 10 8 5 5 6 10 13 13 13 10 Clouds OV OV SC SC SC FW SC SC B1 OV OV B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 20 40 90 50 50 QPF 12hr 0 0.01 0.23 0.05 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C L L D D C C S S C C C C S Tstms S S S C C C S S S S S S Heat index 83 88 84 Max heat 89 88 83 Date Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 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 54 74 57 76 57 78 60 81 Temp 59 55 70 68 61 59 72 68 62 59 74 72 65 62 77 74 Dewpt 47 46 43 46 48 48 45 46 47 47 47 48 51 53 54 54 PWind dir NW W SW NW W SW S S Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC B1 B1 SC SC SC SC FW SC SC SC SC SC SC PoP 12hr 20 30 50 40 10 10 20 30 Rain shwrs S C C C C C S S S C Tstms S S S S $$ WVZ052-082000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 441 AM EDT Wed May 8 2024 Date Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 59 71 53 65 Temp 62 65 75 82 84 78 68 63 61 62 64 67 68 64 60 56 54 55 58 62 61 57 Dewpt 62 63 61 57 55 55 54 54 55 58 59 59 58 56 53 52 50 50 47 46 43 43 RH 100 93 62 43 37 45 61 72 81 87 84 75 70 75 78 86 86 83 67 56 51 59 Wind dir SW SW W W W W W W S E E S NW NW NW W NW NW NW NW NW NW Wind spd 4 5 11 14 13 6 4 3 4 3 6 9 9 9 8 8 9 12 16 16 16 14 Clouds OV B2 SC SC SC SC B1 B2 B2 OV OV B2 B1 B1 B2 B2 B1 B1 B1 B1 SC SC PoP 12hr 10 50 90 40 50 QPF 12hr 0 0.03 0.30 0.08 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C C C D D D D C C S S C C C C S Tstms S S S S C C C S S S S S Heat index 82 Max heat 82 83 Date Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 45 67 46 69 45 72 49 75 Temp 48 50 64 58 51 53 65 62 50 53 69 66 55 57 73 68 Dewpt 42 43 42 45 45 47 43 43 43 46 46 48 48 51 53 53 PWind dir NW W W NW W SW S S Wind char GN GN LT GN LT GN LT GN Avg clouds FW SC SC B1 B1 SC SC SC FW FW SC SC SC SC SC SC PoP 12hr 20 50 40 40 10 20 20 40 Rain shwrs S S C C S C C S S S S C Tstms S S S S S $$ VAZ506-082000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 441 AM EDT Wed May 8 2024 Date Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 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 89 63 76 57 68 Temp 64 67 78 86 89 82 72 68 65 65 70 74 73 68 63 61 58 59 63 66 66 61 Dewpt 64 66 66 62 60 60 59 59 59 61 62 62 62 60 58 57 55 54 52 51 48 48 RH 100 97 67 45 38 47 64 73 81 87 76 66 68 76 84 87 90 83 67 58 52 62 Wind dir S S W W NW W SW SW S S SW SW NW N NW W W W NW NW NW NW Wind spd 3 4 9 12 11 5 3 3 2 4 9 10 11 8 5 6 6 11 16 18 18 13 Clouds OV B1 SC SC SC SC SC B1 B1 OV OV B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC PoP 12hr 20 50 90 40 50 QPF 12hr 0.01 0.01 0.21 0.04 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C C L L D D C C S S C C C C S Tstms S S S S C C C S S S S S Heat index 86 89 82 Max heat 86 89 Date Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 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 48 69 49 70 49 74 53 78 Temp 51 52 66 62 54 55 68 64 54 56 72 69 59 60 75 70 Dewpt 45 46 44 49 48 50 46 48 47 49 48 50 52 54 55 56 PWind dir NW W SW NW NW W S S Wind char GN GN LT GN LT GN GN GN Avg clouds SC FW SC B1 B1 SC SC SC SC FW SC SC SC SC SC SC PoP 12hr 20 40 50 30 10 10 20 30 Rain shwrs S C C S S C S S S C Tstms S S S S S $$ VAZ037-082000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 441 AM EDT Wed May 8 2024 Date Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 66 84 60 74 Temp 66 69 81 87 90 84 74 70 68 67 74 80 82 74 69 65 63 61 69 71 72 65 Dewpt 62 63 63 60 58 59 58 58 58 60 62 62 61 59 57 56 53 52 50 46 43 42 RH 87 81 54 40 34 43 57 66 70 78 66 54 49 59 66 73 70 72 51 41 35 43 Wind dir SW SW W W W W W W W SW SW SW SW W W W W W W NW NW NW Wind spd 4 5 8 9 8 5 3 3 4 5 8 11 12 10 5 5 4 9 13 12 16 12 Clouds B1 B1 SC SC SC SC SC B1 B2 B2 B2 B2 B1 SC SC SC B1 B1 SC SC SC SC PoP 12hr 20 60 80 20 40 QPF 12hr 0.01 0.08 0.12 0.01 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C L D D D D S S C C C C Tstms S S S S S C S S C C S S S Heat index 82 87 84 81 83 Max heat 87 89 81 81 83 Date Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 72 50 75 50 78 55 80 Temp 53 53 69 65 56 56 70 66 56 57 74 71 60 60 77 73 Dewpt 42 43 41 45 45 46 42 43 43 45 44 48 49 51 53 53 PWind dir NW W W W W SW S S Wind char GN GN LT GN LT GN LT GN Avg clouds FW FW SC B1 SC SC FW FW SC FW FW FW SC SC SC SC PoP 12hr 10 30 30 20 5 10 20 40 Rain shwrs C C S S S C Tstms S S S $$ MDZ003-082000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 441 AM EDT Wed May 8 2024 Date Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 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 60 70 54 64 Temp 63 66 75 82 84 77 68 63 62 62 64 67 68 65 61 58 55 57 59 63 63 58 Dewpt 63 64 64 58 56 57 55 54 55 58 59 59 59 57 55 54 52 51 50 48 45 45 RH 100 93 69 44 38 50 63 72 78 87 84 75 73 75 81 86 90 80 72 58 52 62 Wind dir S SW W W W W NW NW E E E SE N N N W NW NW NW NW NW NW Wind spd 5 8 11 14 13 8 4 4 3 4 6 9 11 9 6 10 10 14 17 14 17 14 Clouds OV B2 SC SC FW SC SC B2 B1 B2 OV B2 B1 B1 B2 B2 B2 B1 B1 B1 SC SC PoP 12hr 10 40 90 40 50 QPF 12hr 0 0.03 0.34 0.07 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs L S C C D D D D C C C C C C C C S Tstms S S S C C C S S S S Obvis PF Heat index 82 Max heat 82 83 Date Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 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 45 66 47 68 47 72 51 76 Temp 48 50 64 59 52 54 65 61 51 53 70 66 57 58 72 68 Dewpt 44 44 43 47 48 48 45 47 45 47 48 50 50 53 55 56 PWind dir NW W SW NW W W S S Wind char GN GN LT GN LT GN LT GN Avg clouds SC SC SC B1 B1 SC SC SC SC FW SC SC SC SC SC SC PoP 12hr 20 50 50 40 10 20 20 30 Rain shwrs S S C C S C C S S S C C Tstms S S S S S $$ MDZ017-082000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 441 AM EDT Wed May 8 2024 Date Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 64 78 59 71 Temp 65 68 79 85 84 75 70 68 66 67 73 75 74 67 64 61 60 62 67 69 68 62 Dewpt 64 65 66 65 64 64 64 62 61 63 64 64 62 62 59 58 57 56 55 54 52 50 RH 97 90 64 51 51 69 81 81 84 87 73 69 66 84 84 90 90 81 65 59 57 65 Wind dir S SW SW W W SW S S S SW SW SW W NW NW N N NW NW NW NW N Wind spd 6 5 9 8 6 6 6 8 6 8 10 11 12 9 8 8 9 10 13 11 12 11 Clouds B2 B2 B1 SC B1 SC B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC PoP 12hr 30 40 90 40 40 QPF 12hr 0.03 0 0.28 0.13 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C L L D D C C C C C C S Tstms S C S S C S S S S C C S S S S Obvis PF Heat index 87 85 Max heat 87 87 Date Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 71 54 72 54 75 57 76 Temp 56 56 68 63 58 59 68 64 58 60 72 67 61 63 73 68 Dewpt 49 49 47 50 49 50 49 51 50 51 51 52 53 55 57 57 PWind dir NW SW SW W W SW S S Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC FW FW FW SC SC SC SC SC PoP 12hr 20 20 40 20 5 5 10 20 Rain shwrs S S C S S S S S Tstms S S S $$ WVZ502-082000- Petersburg WV 38.99N 79.15W Elev. 963 ft 441 AM EDT Wed May 8 2024 Date Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 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 86 60 77 53 66 Temp 64 66 76 83 85 78 68 65 62 62 69 74 75 69 62 59 55 53 58 63 64 58 Dewpt 62 62 61 58 56 58 58 57 57 60 62 62 61 59 56 54 52 50 48 47 45 45 RH 93 87 60 43 37 50 70 75 84 93 78 66 62 70 81 83 90 89 69 56 50 62 Wind dir S SW W W W W SW SW SW S SW W W W W W W W W NW NW NW Wind spd 6 5 10 12 11 6 3 4 4 5 8 11 13 10 8 6 6 11 12 13 13 12 Clouds OV B2 SC SC SC SC B1 B1 OV B2 OV B2 B1 SC B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 10 60 90 40 60 QPF 12hr 0 0.02 0.26 0.07 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C C L D D D D C C S S C C L L Tstms S C C S C C C C C S S Heat index 83 Max heat 83 84 Date Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 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 44 68 45 69 45 76 50 79 Temp 48 48 63 59 51 51 66 61 50 53 72 67 56 57 73 70 Dewpt 43 43 42 46 45 45 43 45 45 46 46 50 50 51 55 56 PWind dir W W W W W W SW S Wind char GN GN GN BZ GN GN GN GN Avg clouds SC SC SC B1 SC SC SC SC FW FW FW SC SC SC SC SC PoP 12hr 10 60 40 30 10 20 20 40 Rain shwrs S L C S C S S S S C Tstms S S S S $$ MDZ014-082000- Annapolis MD 38.99N 76.49W Elev. 7 ft 441 AM EDT Wed May 8 2024 Date Wed 05/08/24 Thu 05/09/24 Fri 05/10/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 66 74 59 67 Temp 65 68 76 81 84 80 73 70 68 67 68 70 70 66 63 62 61 60 62 63 64 61 Dewpt 64 65 66 64 62 62 61 61 61 61 62 62 62 60 59 57 56 54 53 52 50 49 RH 97 90 71 56 48 54 66 73 78 81 81 76 76 81 87 84 84 81 72 67 60 65 Wind dir S S SW W W SW SW SW S S S S NW N NE NW N NW NW NW NW N Wind spd 5 5 8 11 10 6 5 5 5 5 8 10 11 9 6 9 9 12 14 13 13 11 Clouds B2 B2 B1 SC SC SC SC SC SC B2 OV B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 SC PoP 12hr 20 40 90 50 40 QPF 12hr 0 0.01 0.28 0.02 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S S C C L L D D C C C C C C S Tstms S S S C C C S S S S Heat index 83 85 81 Max heat 83 86 Coast Flood Y Y Date Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 69 54 70 54 73 57 75 Temp 56 54 65 63 58 58 65 66 59 58 68 68 62 61 71 70 Dewpt 49 48 47 48 50 50 49 49 50 50 51 51 54 55 57 56 PWind dir NW SW SW W W SW S S Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC B1 B1 SC SC SC SC FW SC SC FW SC SC SC PoP 12hr 20 30 40 30 10 10 20 30 Rain shwrs S C C S S C S S S C Tstms S S S $$