Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
533 FOUS51 KLWX 302001 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 401 PM EDT Tue Apr 30 2024 VAZ054-010800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 401 PM EDT Tue Apr 30 2024 Date 04/30/24 Wed 05/01/24 Thu 05/02/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 66 82 61 85 61 Temp 84 78 72 69 67 67 75 80 81 76 68 63 62 65 76 83 83 78 71 65 62 63 Dewpt 55 56 60 61 60 59 55 52 52 52 55 54 56 56 57 55 55 55 56 55 55 54 RH 37 47 66 76 78 75 50 38 37 43 63 72 81 73 52 38 38 45 59 70 78 72 Wind dir SW SW W W NW NW NW NW N N S S S SW W W W NW NE NE NE NE Wind spd 14 11 9 5 6 8 10 10 10 5 4 4 3 3 5 8 10 6 5 4 5 6 Clouds OV OV OV B2 B2 SC FW FW FW FW FW FW FW SC FW FW FW FW SC SC SC SC PoP 12hr 50 10 0 0 0 QPF 12hr 0.08 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C Tstms S S Heat index 80 Max heat 84 80 80 82 83 Date 05/03 Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 Tue 05/07/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 58 67 58 71 60 80 62 85 Temp 77 70 59 59 65 63 58 58 66 66 61 62 76 73 64 64 81 78 Dewpt 53 51 50 52 52 50 52 54 55 55 56 57 56 56 57 58 59 60 PWind dir E E E E E E NW S S Wind char GN GN GN GN GN LT LT LT GN Avg clouds SC B1 B1 B2 B2 B2 B2 OV OV B2 B2 B1 B1 B1 SC SC SC SC PoP 12hr 5 30 50 70 50 30 20 20 30 Rain shwrs S C C C L L C C C S S C Tstms S S S S S $$ MDZ013-010800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 401 PM EDT Tue Apr 30 2024 Date 04/30/24 Wed 05/01/24 Thu 05/02/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 82 58 83 58 Temp 88 81 72 68 66 66 75 80 81 77 67 61 60 64 74 80 81 75 67 62 59 60 Dewpt 56 56 60 61 60 59 55 53 53 54 55 55 55 56 57 57 56 55 56 54 53 52 RH 34 42 66 78 81 78 50 39 38 45 65 81 84 75 55 45 42 50 68 75 80 75 Wind dir SW SW W W W NW NW NW N NE SE SE SE S SW W W W N NE NE NE Wind spd 10 9 6 5 5 6 8 8 6 3 3 3 3 3 5 9 8 5 5 5 5 8 Clouds B2 OV OV B2 B2 SC FW FW FW FW FW FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 50 10 0 0 0 QPF 12hr 0.08 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S Tstms C S S Heat index 81 80 81 80 81 Max heat 86 80 81 80 82 Date 05/03 Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 Tue 05/07/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 77 53 65 53 66 57 78 59 82 Temp 74 65 55 55 63 61 54 55 63 63 58 59 74 71 60 61 77 74 Dewpt 53 51 49 50 51 50 49 52 54 55 55 56 56 56 56 57 58 60 PWind dir E E E E E E NW S S Wind char GN GN GN GN GN GN LT LT GN Avg clouds SC SC B1 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 SC SC SC SC SC PoP 12hr 0 30 50 60 50 30 20 20 30 Rain shwrs S C C C L L C C C S S S S C Tstms S S S S $$ MDZ011-010800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 401 PM EDT Tue Apr 30 2024 Date 04/30/24 Wed 05/01/24 Thu 05/02/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 84 63 86 63 Temp 89 82 74 71 69 68 77 82 82 74 71 64 63 67 77 83 85 77 72 67 64 65 Dewpt 56 56 60 61 60 58 53 53 53 53 55 54 55 55 56 55 54 54 54 54 53 51 RH 33 41 62 71 73 70 43 37 37 48 57 70 75 65 48 38 35 45 53 63 67 60 Wind dir SW SW W W NW NW NW NW N N SE SE SE S SW W W NW N NE NE NE Wind spd 10 8 6 4 5 6 8 8 6 3 3 3 3 3 5 8 9 5 5 5 5 8 Clouds B2 OV OV B2 B2 SC FW FW FW FW FW FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 50 10 0 0 0 QPF 12hr 0.07 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S Tstms C S S Heat index 82 Max heat 87 81 82 82 83 Date 05/03 Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 Tue 05/07/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 59 70 59 72 62 83 66 87 Temp 79 67 60 61 68 62 59 60 68 65 62 64 79 73 66 68 82 76 Dewpt 51 49 48 48 49 48 49 51 53 54 54 55 55 55 56 57 57 59 PWind dir E E E E E NE W S S Wind char GN GN GN GN GN GN LT LT GN Avg clouds SC SC B1 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 SC SC SC SC SC PoP 12hr 5 30 50 60 50 30 20 20 30 Rain shwrs C C C L L C C C S S S C Tstms S S S $$ WVZ052-010800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 401 PM EDT Tue Apr 30 2024 Date 04/30/24 Wed 05/01/24 Thu 05/02/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 58 80 55 83 55 Temp 83 73 68 64 59 63 72 78 80 75 64 60 57 61 74 80 82 76 65 60 56 59 Dewpt 56 60 60 59 56 57 54 51 49 51 51 50 50 54 56 54 52 53 52 51 51 51 RH 40 64 76 84 90 81 53 39 34 43 63 69 77 78 53 41 35 45 63 72 83 75 Wind dir SW W NW W NW NW NW NW NW S SW SW SW W W W NW N N N N NE Wind spd 10 8 5 5 4 5 9 9 6 2 3 3 2 3 6 9 8 5 5 4 4 3 Clouds OV OV OV B2 SC FW FW FW FW FW CL FW SC FW FW FW FW FW FW SC SC SC PoP 12hr 50 10 0 0 0 QPF 12hr 0.09 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S Tstms C C Heat index 80 Max heat 82 80 81 Date 05/03 Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 Tue 05/07/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 54 63 53 67 54 78 57 82 Temp 76 71 58 55 60 61 55 54 63 65 56 56 73 72 59 60 78 76 Dewpt 53 51 49 50 51 50 49 51 53 53 53 54 55 54 54 56 58 58 PWind dir E SE SE SE E E SW S S Wind char GN GN GN GN GN LT LT LT GN Avg clouds SC B1 B1 B2 B2 B2 B2 OV B2 B2 B1 B2 B1 SC SC SC SC SC PoP 12hr 10 40 60 60 50 20 30 20 40 Rain shwrs S C L L L L C C S S C S S S C Tstms S S S S S S S S C $$ VAZ506-010800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 401 PM EDT Tue Apr 30 2024 Date 04/30/24 Wed 05/01/24 Thu 05/02/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 81 58 85 59 Temp 86 77 70 67 64 64 73 79 80 76 66 62 59 64 77 83 84 78 69 64 60 62 Dewpt 55 58 61 61 59 59 56 54 52 54 54 54 54 57 59 57 56 56 56 55 54 54 RH 35 52 73 81 84 84 55 42 38 46 65 75 83 78 54 41 38 47 63 73 81 75 Wind dir SW W W NW NW NW NW NW NW E N SW N W W W W N N N NE NE Wind spd 10 10 6 4 4 6 9 9 6 2 0 2 0 2 5 6 6 4 3 4 4 6 Clouds OV OV OV B2 B1 FW FW CL FW FW FW FW FW SC FW FW FW FW SC SC SC SC PoP 12hr 60 10 0 0 0 QPF 12hr 0.09 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C Tstms C S Heat index 80 Max heat 84 80 82 83 Date 05/03 Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 Tue 05/07/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 56 65 55 68 57 79 60 84 Temp 79 71 58 57 63 63 56 55 65 66 59 59 76 72 62 62 80 77 Dewpt 54 53 51 53 53 52 52 54 55 56 56 57 57 58 57 58 60 62 PWind dir E E E E E E NW S S Wind char GN GN GN GN GN LT LT LT GN Avg clouds SC B1 B1 B2 B2 B2 B2 OV B2 B2 B1 B1 B1 SC SC SC SC SC PoP 12hr 5 30 50 70 50 20 20 20 30 Rain shwrs S C C C L L C C S S S S C Tstms S S S S S S S $$ VAZ037-010800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 401 PM EDT Tue Apr 30 2024 Date 04/30/24 Wed 05/01/24 Thu 05/02/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 83 59 88 61 Temp 83 75 71 67 65 66 75 81 83 76 68 63 60 65 81 86 86 79 73 66 63 66 Dewpt 55 58 61 60 58 59 57 53 51 52 52 52 51 53 56 53 52 54 54 53 52 53 RH 38 55 71 78 78 78 54 38 33 43 57 67 72 65 42 32 31 42 51 63 67 63 Wind dir SW SW W W NW NW N N NE E W W W W SW SW S S NW NW N NE Wind spd 11 9 4 4 3 3 5 5 5 3 2 2 2 2 4 5 5 5 5 4 4 5 Clouds OV OV OV B2 B2 SC FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 50 10 0 0 5 QPF 12hr 0.05 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C Tstms C C Heat index 81 Max heat 83 80 81 84 85 Date 05/03 Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 Tue 05/07/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 61 71 60 76 62 82 63 87 Temp 84 76 64 62 67 66 62 61 71 70 63 64 78 75 65 66 84 80 Dewpt 54 54 52 53 54 53 54 54 56 56 55 56 57 57 56 57 59 59 PWind dir E E E E SE SE SE S SW Wind char LT GN GN LT LT LT LT LT GN Avg clouds SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 SC SC PoP 12hr 10 30 60 60 50 20 30 20 40 Rain shwrs C C C L L C C C S C S S C Tstms S S S C S C S S S C $$ MDZ003-010800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 401 PM EDT Tue Apr 30 2024 Date 04/30/24 Wed 05/01/24 Thu 05/02/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 58 80 57 83 56 Temp 79 70 67 64 60 62 71 78 80 75 66 60 58 62 74 81 82 75 66 61 57 60 Dewpt 56 60 61 60 57 56 54 53 51 53 52 53 53 55 58 56 54 55 53 52 52 52 RH 45 71 81 87 90 81 55 42 36 46 61 78 83 78 57 42 38 50 63 72 83 75 Wind dir W W W NW NW NW NW NW NW SE N S SW W W W NW N N NE NE NE Wind spd 10 9 5 5 4 5 8 9 8 3 0 4 2 4 8 10 9 6 5 5 5 5 Clouds OV OV OV B2 SC FW FW FW FW FW FW FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 70 10 0 0 0 QPF 12hr 0.09 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C Tstms C C Heat index 81 Max heat 82 81 81 Date 05/03 Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 Tue 05/07/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 54 63 53 66 55 77 57 82 Temp 78 70 58 55 61 61 55 54 62 63 57 57 74 71 59 60 78 75 Dewpt 55 54 51 50 52 51 50 51 54 54 54 55 56 56 56 57 59 60 PWind dir SE SE SE E SE E W S S Wind char GN GN GN GN GN LT LT LT GN Avg clouds SC B1 B1 B2 B2 B2 B2 OV B2 B2 B1 B2 B1 SC SC SC SC SC PoP 12hr 10 40 60 70 50 20 30 20 40 Rain shwrs S C L L L L C C S S C S S C C Tstms S S S S S S S S $$ MDZ017-010800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 401 PM EDT Tue Apr 30 2024 Date 04/30/24 Wed 05/01/24 Thu 05/02/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 77 58 77 58 Temp 81 74 70 66 65 65 72 75 76 69 63 60 59 61 71 74 75 69 64 61 59 60 Dewpt 56 58 58 60 59 60 58 57 56 57 57 56 55 57 59 57 57 57 56 55 54 55 RH 42 57 66 81 81 84 61 54 50 66 81 87 87 87 66 55 54 66 75 81 83 84 Wind dir SW SW SW W W NW N N E SE S S S S S S S S S SE NE NE Wind spd 11 9 8 6 6 6 8 8 6 4 5 4 3 4 5 6 8 6 5 5 5 8 Clouds B2 OV OV B1 B2 SC SC FW FW FW FW FW SC SC SC FW FW FW FW SC SC SC PoP 12hr 30 20 5 0 5 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C S S Tstms S S Heat index 81 Max heat 82 Date 05/03 Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 Tue 05/07/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 74 56 67 57 70 59 75 61 79 Temp 71 63 57 58 67 61 58 59 67 64 60 61 74 66 62 63 76 72 Dewpt 55 52 51 52 54 52 52 54 57 56 56 57 58 58 56 58 59 59 PWind dir E E E SE SE S N S S Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC B1 SC SC PoP 12hr 0 20 40 60 50 30 20 20 20 Rain shwrs S C C C L C C C S S S S Tstms S S S $$ WVZ502-010800- Petersburg WV 38.99N 79.15W Elev. 963 ft 401 PM EDT Tue Apr 30 2024 Date 04/30/24 Wed 05/01/24 Thu 05/02/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 56 81 55 87 58 Temp 76 69 65 62 57 59 71 79 81 74 63 58 57 61 75 84 85 78 68 62 59 61 Dewpt 57 60 59 57 55 57 53 49 49 51 50 49 49 52 55 53 52 56 54 53 52 53 RH 52 73 81 84 93 93 53 35 33 44 62 72 75 72 50 34 32 47 61 72 78 75 Wind dir W W W SW W SW NW NW NW W SW SW SW SW W W NW N NW W SW SE Wind spd 10 5 3 2 2 3 5 6 6 4 2 3 3 3 4 5 5 4 2 2 2 2 Clouds OV OV B2 B2 SC SC CL CL FW FW FW FW SC FW FW FW FW FW FW SC SC SC PoP 12hr 40 5 0 0 0 QPF 12hr 0.05 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C Tstms C C Date 05/03 Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 Tue 05/07/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 59 70 57 76 57 82 59 85 Temp 83 74 64 60 67 66 59 58 72 70 59 59 78 75 61 62 82 79 Dewpt 56 58 57 55 57 56 55 54 59 59 56 57 57 58 56 57 60 61 PWind dir SE SE SE SE S S SW SW SW Wind char LT LT GN LT LT LT LT LT GN Avg clouds SC B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC SC SC SC SC PoP 12hr 20 40 70 60 50 20 30 30 50 Rain shwrs S C C L L L C C C S S C C S C C Tstms S C S S C S S C S S S C $$ MDZ014-010800- Annapolis MD 38.99N 76.49W Elev. 7 ft 401 PM EDT Tue Apr 30 2024 Date 04/30/24 Wed 05/01/24 Thu 05/02/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 65 78 59 78 59 Temp 84 81 73 69 66 66 72 75 77 72 66 60 60 63 71 73 76 72 66 63 60 61 Dewpt 56 57 60 60 60 60 56 56 55 55 56 56 56 56 57 59 57 57 57 56 55 54 RH 38 44 64 73 81 81 57 52 47 55 70 87 87 78 61 62 52 59 73 78 84 78 Wind dir S SW W W W NW N N E S SE SE S S S SW SW S S NE NE NE Wind spd 11 8 6 5 5 6 8 8 8 4 3 4 4 4 5 9 9 6 5 4 5 8 Clouds B2 OV OV B2 B2 SC FW FW FW FW FW FW SC SC SC FW FW FW SC SC SC SC PoP 12hr 40 20 0 0 0 QPF 12hr 0.03 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S S S Tstms S S S Heat index 81 Max heat 84 Date 05/03 Sat 05/04/24 Sun 05/05/24 Mon 05/06/24 Tue 05/07/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 73 56 65 56 67 59 75 62 79 Temp 70 64 57 58 63 61 57 58 63 63 60 61 71 69 62 64 74 72 Dewpt 54 51 50 50 53 51 52 54 56 56 56 56 59 57 58 58 60 60 PWind dir E E E E E E E S S Wind char GN GN GN GN GN GN LT LT GN Avg clouds SC SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 SC SC SC SC SC PoP 12hr 0 20 40 60 50 30 20 20 30 Rain shwrs S C C C L C C C S S C Tstms S S S S $$