Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
505 FOUS51 KLWX 072341 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 741 PM EDT Tue May 7 2024 VAZ054-080800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 741 PM EDT Tue May 7 2024 Date 05/07/24 Wed 05/08/24 Thu 05/09/24 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 67 89 67 82 63 Temp 74 70 68 67 69 79 85 86 79 73 70 68 69 75 78 81 77 72 68 65 64 Dewpt 66 66 65 65 66 66 63 61 60 59 60 60 63 65 64 64 63 61 58 56 54 RH 76 87 90 93 90 64 48 43 52 62 71 76 81 71 62 56 62 68 70 73 70 Wind dir S S S S S W W W W SW SW S S S SW SW W W W W W Wind spd 5 5 5 5 4 9 12 13 6 4 4 4 6 9 13 14 11 12 11 12 13 Clouds B2 B1 B2 B2 OV B1 SC SC SC SC SC B1 B2 B2 B2 B1 B1 SC SC SC B1 PoP 12hr 30 20 50 90 40 QPF 12hr 0.02 0 0.10 0.35 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C S S S S C C L L D D C C C Tstms S S S S S S S C C C S Heat index 86 86 83 Max heat 86 88 83 Date 05/10 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 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 53 70 53 70 53 76 59 80 Temp 70 64 56 55 68 64 55 56 68 66 56 58 74 71 61 62 78 73 Dewpt 49 46 45 45 41 44 47 47 44 44 45 48 48 50 51 53 54 54 PWind dir NW NW W SW W W SW SW SW Wind char GN GN GN LT GN LT GN GN GN Avg clouds B1 B1 SC FW SC B1 B1 SC B1 SC FW FW FW SC SC SC SC SC PoP 12hr 40 20 20 30 30 10 10 10 20 Rain shwrs C C S S C S S C S Tstms S S S S S S $$ MDZ013-080800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 741 PM EDT Tue May 7 2024 Date 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 86 62 78 59 Temp 73 68 66 64 66 77 84 84 77 70 66 64 65 71 75 78 74 68 64 61 60 Dewpt 65 65 65 64 66 67 62 59 59 58 58 59 61 63 63 63 62 61 58 55 55 RH 76 90 97100100 71 48 43 54 66 75 84 87 76 66 60 66 78 81 81 84 Wind dir S S S S SW W W W W W W NE SE SE S SW SW W W W W Wind spd 5 4 4 4 5 9 12 12 6 5 4 4 6 9 12 12 10 12 13 16 16 Clouds B2 B2 B2 OV OV B1 SC SC FW SC SC B1 B2 B2 B2 B2 B1 SC SC SC B1 PoP 12hr 40 20 40 90 50 QPF 12hr 0.03 0 0.17 0.34 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C L L D D C C S S C Tstms S S C C C S S Obvis PF Heat index 85 84 Max heat 85 85 Date 05/10 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 72 49 68 51 69 51 75 56 79 Temp 70 61 54 53 66 63 53 54 67 64 54 56 73 70 59 60 78 71 Dewpt 51 48 46 46 43 46 47 48 46 46 47 49 49 51 52 54 55 56 PWind dir NW NW W SW W W SW SW SW Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 B1 SC FW SC B1 B1 B1 B1 SC FW FW SC SC SC SC SC SC PoP 12hr 40 20 20 30 30 10 10 20 20 Rain shwrs C C S S C S C C S S Tstms S S S S S $$ MDZ011-080800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 741 PM EDT Tue May 7 2024 Date 05/07/24 Wed 05/08/24 Thu 05/09/24 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 67 90 68 84 65 Temp 73 71 69 67 68 80 86 88 82 75 71 69 69 77 81 84 78 75 72 68 66 Dewpt 64 65 64 64 65 65 62 58 58 57 57 58 60 61 62 62 61 60 57 54 53 RH 73 81 84 90 90 60 45 36 44 54 61 68 73 58 53 48 56 60 59 61 63 Wind dir SE S SE S SW W W W W W W N SE SE S SW SW W W W W Wind spd 4 4 3 3 5 8 12 12 6 5 4 4 6 9 12 12 10 12 13 16 16 Clouds B2 B2 B2 OV OV B1 SC FW FW SC SC B1 B2 B2 B2 B2 B1 SC SC SC B1 PoP 12hr 50 20 40 90 50 QPF 12hr 0.03 0 0.09 0.34 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C L L D D C C S S C Tstms S S C C C S S Heat index 82 86 82 82 85 Max heat 87 88 81 82 85 Date 05/10 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 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 76 55 73 57 74 57 79 62 83 Temp 72 64 59 59 71 66 59 60 72 67 59 62 77 72 64 65 81 74 Dewpt 49 47 45 45 41 44 47 47 45 45 45 47 48 50 51 53 53 54 PWind dir NW NW W W W W SW SW SW Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 B1 SC SC SC B1 B1 B1 B1 SC FW FW SC SC SC SC SC SC PoP 12hr 50 20 20 40 30 10 20 20 20 Rain shwrs C C S S C S C C S S S Tstms S S S S S $$ WVZ052-080800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 741 PM EDT Tue May 7 2024 Date 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 85 59 78 56 Temp 72 67 64 62 66 76 83 83 75 67 63 61 64 68 73 76 72 65 60 57 58 Dewpt 64 64 63 62 63 62 58 56 55 54 54 55 60 61 61 60 59 56 53 50 50 RH 76 90 97100 90 62 43 40 50 63 72 81 87 78 66 58 64 73 78 77 75 Wind dir S S S SW SW W W W W W W S S S S SW W W W W W Wind spd 4 4 4 4 5 11 14 13 6 4 3 4 5 8 11 14 16 12 12 13 14 Clouds B2 B2 B2 OV B2 B1 SC FW SC B1 B2 B1 B2 B2 B2 B1 SC SC SC B1 B1 PoP 12hr 60 10 50 90 40 QPF 12hr 0.09 0 0.07 0.34 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S L C C C D D D D C C S S C Tstms C S S S S S C C C S S Obvis PF Heat index 83 Max heat 83 83 Date 05/10 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 68 45 65 46 66 45 73 51 76 Temp 65 59 50 50 63 60 49 50 64 63 50 51 71 69 55 57 74 71 Dewpt 47 43 41 42 40 43 44 45 42 43 43 45 47 48 49 50 52 52 PWind dir NW NW W W NW W SW SW SW Wind char GN GN GN LT GN LT GN LT GN Avg clouds B1 B1 SC SC SC B1 B1 B1 B1 SC FW FW SC SC SC SC SC SC PoP 12hr 50 20 40 30 40 10 20 20 30 Rain shwrs C C S C C S C C S S C Tstms S S S S S S S S $$ VAZ506-080800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 741 PM EDT Tue May 7 2024 Date 05/07/24 Wed 05/08/24 Thu 05/09/24 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 87 62 80 60 Temp 74 69 66 64 67 79 85 86 77 71 68 64 66 72 75 79 75 69 66 62 61 Dewpt 64 66 65 64 66 65 61 60 60 59 59 59 62 64 65 64 63 61 58 55 55 RH 71 90 97100 97 62 45 42 56 66 73 84 87 76 71 60 66 76 75 78 81 Wind dir S S S S S W W NW W SW SW S S S S SW W W W W W Wind spd 5 5 5 3 4 9 12 11 5 3 3 2 6 9 14 14 12 13 12 14 14 Clouds B2 B1 B2 OV B2 SC SC SC SC SC B1 B1 B2 B2 B2 B1 SC SC SC SC B1 PoP 12hr 40 20 50 90 40 QPF 12hr 0.02 0 0.10 0.27 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S S S S C C L L D D C C S S C Tstms S S S S S S S S S C C C S S S Heat index 85 86 Max heat 85 86 Date 05/10 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 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 71 49 67 49 69 49 75 54 79 Temp 69 61 53 52 65 63 52 53 67 64 53 55 73 71 58 59 77 73 Dewpt 50 47 45 45 43 47 47 47 45 46 46 48 49 51 52 54 55 56 PWind dir NW NW W SW NW W SW SW SW Wind char GN GN GN LT GN GN GN LT GN Avg clouds B1 SC SC FW SC B1 B1 B1 B1 SC FW FW FW SC SC SC SC SC PoP 12hr 50 20 30 30 30 10 20 20 20 Rain shwrs C C S C C S S C S S S Tstms S S S S S S S S $$ VAZ037-080800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 741 PM EDT Tue May 7 2024 Date 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 66 90 66 85 61 Temp 76 71 67 67 69 80 87 87 80 74 69 67 68 74 81 84 78 72 67 64 62 Dewpt 64 64 63 62 64 65 61 60 60 58 58 58 61 63 62 61 59 57 54 51 52 RH 66 79 87 84 84 60 42 40 51 57 68 73 78 69 53 46 52 59 63 63 70 Wind dir SE NW S SW SW W W W W W W W SW SW SW SW SW W W W W Wind spd 3 3 3 4 5 8 9 8 5 3 3 4 6 8 16 18 14 10 10 10 12 Clouds B1 B2 B1 B2 B1 SC B1 SC SC SC B1 B2 B2 B2 B2 B1 SC FW SC SC SC PoP 12hr 30 20 60 80 20 QPF 12hr 0.01 0 0.12 0.23 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S S C C L L D D D D S S C Tstms S S S C S S C S S C C S S Heat index 82 87 87 81 82 84 Max heat 87 89 82 84 Date 05/10 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 74 50 70 50 72 50 78 56 81 Temp 70 64 53 55 68 63 53 55 70 66 54 56 76 71 60 62 79 74 Dewpt 48 42 41 42 39 42 43 44 41 42 43 44 45 48 49 50 52 54 PWind dir NW NW W W W W SW SW SW Wind char GN GN GN LT GN LT GN LT GN Avg clouds SC SC SC FW SC B1 SC SC SC SC FW FW FW SC SC SC SC B1 PoP 12hr 40 10 30 20 20 5 10 10 30 Rain shwrs C C C S S S C Tstms S S S S C $$ MDZ003-080800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 741 PM EDT Tue May 7 2024 Date 05/07/24 Wed 05/08/24 Thu 05/09/24 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 85 60 77 56 Temp 76 69 66 63 67 78 83 84 76 68 64 62 64 68 74 76 72 64 60 56 58 Dewpt 63 65 64 63 64 64 58 56 56 55 55 55 60 61 62 62 61 58 55 52 52 RH 64 87 93100 90 62 43 38 50 63 73 78 87 78 66 62 68 81 84 86 80 Wind dir S S S S SW W W W W NW NW E S S S SW W W W W W Wind spd 5 4 5 5 8 11 14 13 8 4 4 3 6 10 11 13 14 12 12 14 16 Clouds B2 B2 B2 OV B2 SC SC FW SC SC B2 B1 OV B2 B2 B1 SC SC SC B1 B1 PoP 12hr 70 10 40 90 40 QPF 12hr 0.14 0 0.15 0.40 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C C D D D D C C C C C Tstms C S S S S C C C S S Obvis PF PF Heat index 83 Max heat 83 84 Date 05/10 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 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 67 46 66 47 66 47 73 52 77 Temp 65 59 50 50 64 59 50 51 64 62 50 53 71 68 55 58 75 71 Dewpt 49 46 44 43 42 45 46 47 45 45 45 47 50 51 50 53 54 55 PWind dir NW NW W SW W W SW SW SW Wind char BZ GN GN GN GN LT GN LT GN Avg clouds B1 B1 SC SC SC B1 B1 B1 B1 SC FW FW SC SC SC SC SC SC PoP 12hr 50 20 40 30 40 10 20 20 30 Rain shwrs C C S C C S C C S S C Tstms S S S S S S S S $$ MDZ017-080800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 741 PM EDT Tue May 7 2024 Date 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 83 65 81 63 Temp 71 66 66 64 68 77 81 79 70 68 66 65 69 76 78 80 74 69 66 64 63 Dewpt 64 63 63 64 66 66 66 65 65 62 62 62 64 66 66 64 64 63 60 57 57 RH 79 90 90100 93 69 60 62 84 81 87 90 84 71 67 58 71 81 81 78 81 Wind dir SE S S S SW SW W W SW S S S S S SW SW SW W W W W Wind spd 6 5 5 6 5 9 8 6 6 6 8 6 6 10 13 14 13 12 13 14 16 Clouds B1 B2 B2 B2 B2 B1 SC B1 SC B1 B1 B1 B2 B2 B2 B2 B1 SC SC SC SC PoP 12hr 20 30 40 90 40 QPF 12hr 0 0.01 0.10 0.44 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C C C C L L D D C C C Tstms S S S S C S S S S C C C S Obvis PF PF Heat index 83 82 Max heat 83 84 82 Date 05/10 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 74 53 70 54 71 54 76 59 77 Temp 71 63 56 56 68 63 57 57 70 63 57 58 74 69 61 62 76 69 Dewpt 54 51 48 47 44 48 49 49 48 49 48 50 50 53 53 55 57 58 PWind dir NW NW W SW W W SW SW S Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC B1 SC SC SC SC B1 SC SC SC FW FW FW SC SC FW SC SC PoP 12hr 40 20 20 30 20 5 10 10 20 Rain shwrs C C S S C S S S S Tstms S S S S $$ WVZ502-080800- Petersburg WV 38.99N 79.15W Elev. 963 ft 741 PM EDT Tue May 7 2024 Date 05/07/24 Wed 05/08/24 Thu 05/09/24 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 85 59 80 54 Temp 73 68 65 64 66 76 83 84 76 68 64 61 62 68 75 79 73 65 60 56 54 Dewpt 64 62 61 62 62 62 58 57 57 56 56 57 60 63 62 61 58 55 52 49 50 RH 73 81 87 93 87 62 43 40 52 65 75 87 93 84 64 54 59 70 75 77 86 Wind dir SW S S S SW W W W W SW SW SW SW SW SW W W W W W W Wind spd 3 3 3 6 5 10 12 11 6 3 4 4 8 11 16 19 18 16 16 17 17 Clouds B1 B2 B2 OV B2 B1 SC SC SC B1 B1 OV B2 B2 B2 B1 SC SC SC B1 B1 PoP 12hr 70 10 60 90 40 QPF 12hr 0.10 0 0.12 0.28 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L C S S S S L L D D D D C C S S C Tstms S S S S S S S S S S C C C S S Heat index 83 Max heat 83 84 Date 05/10 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 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 66 44 66 45 66 45 76 51 80 Temp 63 58 48 47 63 59 49 49 64 62 50 51 74 69 55 57 78 73 Dewpt 48 45 42 42 41 45 45 45 44 46 45 46 48 51 49 51 54 54 PWind dir W W W W W W W SW SW Wind char BZ GN GN GN BZ GN GN GN GN Avg clouds B1 SC SC SC SC B1 B1 B1 B1 SC SC FW FW SC SC SC SC B1 PoP 12hr 60 10 50 30 40 10 20 20 30 Rain shwrs C L S C C C C S S S C Tstms S S S S S S C $$ MDZ014-080800- Annapolis MD 38.99N 76.49W Elev. 7 ft 741 PM EDT Tue May 7 2024 Date 05/07/24 Wed 05/08/24 Thu 05/09/24 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 65 84 65 77 61 Temp 72 68 66 65 66 74 80 81 76 72 68 67 67 69 73 75 72 67 66 63 62 Dewpt 64 65 64 64 65 66 65 62 61 61 60 60 62 64 66 64 62 62 59 57 55 RH 76 90 93 97 97 76 60 53 60 68 76 78 84 84 79 69 71 84 78 81 78 Wind dir S S S S S SW W W SW SW SW S SE S S SW NW W W W W Wind spd 5 6 5 5 5 8 11 10 6 5 5 5 5 9 10 12 11 10 12 13 17 Clouds B1 B2 B2 B2 OV B1 SC SC SC SC SC SC B2 B2 B2 B2 B1 SC SC SC B1 PoP 12hr 40 20 40 90 50 QPF 12hr 0.02 0 0.21 0.45 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C S S C C L L D D C C C Tstms S S S S C C C S Obvis PF Heat index 82 82 Max heat 82 83 Date 05/10 Sat 05/11/24 Sun 05/12/24 Mon 05/13/24 Tue 05/14/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 71 53 68 54 69 54 73 59 76 Temp 67 63 56 56 65 63 56 57 67 65 57 58 71 69 61 62 73 71 Dewpt 53 49 47 46 45 47 49 49 48 48 48 49 51 52 54 54 57 57 PWind dir NW NW W SW W W SW SW S Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 B1 SC SC SC B1 B1 SC SC SC FW FW FW SC SC SC SC SC PoP 12hr 40 20 20 30 30 10 10 20 20 Rain shwrs C C S S C S S C S S Tstms S S S S $$