Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
806 FOUS51 KLWX 060839 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 439 AM EDT Mon May 6 2024 VAZ054-062000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 439 AM EDT Mon May 6 2024 Date Mon 05/06/24 Tue 05/07/24 Wed 05/08/24 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 66 79 67 88 Temp 65 67 71 76 77 73 70 68 67 68 73 77 78 74 71 69 68 70 79 85 86 79 Dewpt 64 65 66 65 66 65 65 65 65 65 65 65 64 64 65 64 64 65 63 59 58 58 RH 97 93 84 69 69 76 84 90 93 90 76 67 62 71 81 84 87 84 58 41 39 49 Wind dir S S S S S SE SE SW NW N NE S NE E S S SW W W W W SW Wind spd 6 4 5 5 8 6 5 4 3 4 5 5 9 6 5 5 5 5 10 11 12 6 Clouds OV OV OV OV OV OV OV OV OV B2 B1 B2 B1 B1 B1 B1 B1 B1 SC SC FW SC PoP 12hr 50 80 50 20 20 QPF 12hr 0.01 0.18 0.19 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D D C S S C C C S S S S S S S Tstms C C C C S S C C C S S S S S S Obvis F F+ Heat index 85 Max heat 85 86 Date Thu 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 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 67 81 61 73 54 70 54 72 Temp 69 68 80 71 64 61 71 64 57 54 67 65 57 57 69 67 Dewpt 60 61 63 58 56 54 49 47 47 46 44 45 47 49 49 48 PWind dir S SW NW NW NW NW S SW Wind char LT GN GN BZ GN GN LT GN Avg clouds SC B2 B2 B2 B1 SC SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 40 80 50 40 30 20 30 30 Rain shwrs S C C D C S C C S S S C S S C Tstms S C S C C S S S $$ MDZ013-062000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 439 AM EDT Mon May 6 2024 Date Mon 05/06/24 Tue 05/07/24 Wed 05/08/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 63 76 64 85 Temp 63 65 70 75 75 72 68 66 65 66 70 74 74 71 68 66 65 68 78 82 83 77 Dewpt 63 64 66 66 66 66 66 65 64 64 64 65 64 64 65 64 64 65 62 59 57 58 RH 100 97 87 74 74 81 93 97 97 93 81 74 71 79 90 93 97 90 58 46 41 52 Wind dir S S SW SW E SE E SE N N E E E SE S S SW W W W W W Wind spd 3 2 3 3 3 4 3 3 3 3 3 5 4 5 3 3 4 5 9 10 10 6 Clouds OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 B2 B2 B2 B2 B1 SC SC FW FW PoP 12hr 40 80 40 30 5 QPF 12hr 0.01 0.23 0.16 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C D C C S C C C S S C C Tstms C C C C C S S S S S S S Obvis F F PF Heat index 82 Max heat 82 83 Coast Flood Y Y Dense Fog Y Y Date Thu 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 78 58 73 51 69 52 71 Temp 66 66 77 68 60 60 70 66 54 53 66 64 54 55 68 65 Dewpt 58 60 62 59 56 54 50 48 47 47 45 47 48 49 49 50 PWind dir SW SW NW NW NW NW SW S Wind char LT GN GN BZ GN GN GN GN Avg clouds SC B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC SC B1 PoP 12hr 40 80 50 40 30 20 30 30 Rain shwrs C C D C S S C C S S S C S C C Tstms S S C C S S S S $$ MDZ011-062000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 439 AM EDT Mon May 6 2024 Date Mon 05/06/24 Tue 05/07/24 Wed 05/08/24 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 68 81 69 90 Temp 66 68 74 78 79 75 73 71 70 68 76 76 79 77 74 72 71 71 83 85 88 83 Dewpt 62 63 64 65 65 65 64 64 63 63 62 63 63 63 63 63 63 63 61 58 56 56 RH 87 84 71 64 62 71 73 79 78 84 62 64 58 62 69 73 76 76 47 40 34 40 Wind dir SE S S S SE SE NE E N NE NE E E SE S S SW W W W W W Wind spd 3 2 3 4 5 3 3 3 3 4 4 5 5 4 4 3 4 5 9 10 10 6 Clouds OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 B2 B2 B2 B2 B1 SC FW FW FW PoP 12hr 40 70 40 30 5 QPF 12hr 0.05 0.19 0.16 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C L C C S C C C S S C C Tstms C C C C C S S S S S S S Heat index 83 Max heat 82 85 86 Dense Fog Y Y Date Thu 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 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 82 62 77 55 74 57 76 Temp 72 69 79 74 66 62 74 70 60 55 70 69 61 57 72 70 Dewpt 57 58 61 57 55 52 48 47 46 45 43 45 47 48 48 49 PWind dir SW S NW NW NW NW SW SW Wind char LT GN GN BZ GN GN GN GN Avg clouds SC B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC SC B1 PoP 12hr 40 80 50 40 30 30 30 30 Rain shwrs C C D C S S C C S S C C S C C Tstms S S C C S S S S $$ WVZ052-062000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 439 AM EDT Mon May 6 2024 Date Mon 05/06/24 Tue 05/07/24 Wed 05/08/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 60 76 60 84 Temp 59 61 68 73 74 69 65 63 62 63 68 73 74 71 66 64 62 66 75 81 82 75 Dewpt 58 59 61 63 62 62 61 60 60 61 62 62 61 62 62 61 60 61 58 55 54 55 RH 96 93 78 71 66 78 87 90 93 93 81 68 64 73 87 90 93 84 55 41 38 50 Wind dir SW N NE NE E NE E NW N N NE NE NE SE S SW W W W W W W Wind spd 2 0 2 3 3 2 2 2 2 2 3 4 4 5 4 5 5 8 13 13 11 9 Clouds OV OV OV OV OV OV OV OV OV B2 B2 B2 B1 B1 B1 B2 B1 SC SC FW FW SC PoP 12hr 60 80 60 30 5 QPF 12hr 0.10 0.13 0.15 0.03 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C C S C L L C C C C S Tstms C C C C S S C C C S S S Obvis F F PF PF Heat index 81 Max heat 81 81 Dense Fog Y Y Date Thu 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 76 56 67 47 67 47 68 Temp 62 62 75 68 58 58 65 60 49 51 65 62 50 52 65 62 Dewpt 54 57 60 56 52 50 45 44 43 44 42 44 44 46 47 47 PWind dir W SW W NW NW NW SW SW Wind char LT GN GN BZ GN GN LT GN Avg clouds SC B2 B2 B1 SC SC SC SC SC SC SC SC SC SC B1 B1 PoP 12hr 60 80 40 50 30 30 30 40 Rain shwrs S L L D C S C C C S S C C C C C Tstms S S S C C S S S C $$ VAZ506-062000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 439 AM EDT Mon May 6 2024 Date Mon 05/06/24 Tue 05/07/24 Wed 05/08/24 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 63 79 64 86 Temp 63 65 71 76 77 73 68 66 65 66 72 76 77 73 69 67 66 69 78 84 85 78 Dewpt 63 64 66 65 66 65 65 65 64 65 66 65 64 65 65 64 64 65 62 58 57 59 RH 100 97 84 69 69 76 90 97 97 97 81 69 64 76 87 90 93 87 58 41 39 52 Wind dir S S SW S S S NE S N N NE N N E S SW W W W W W W Wind spd 3 2 2 2 2 2 2 2 0 2 2 3 4 4 3 3 3 4 10 11 9 5 Clouds OV OV OV OV B2 OV OV OV OV B2 B1 B2 B2 B1 B1 B2 B1 SC SC SC FW SC PoP 12hr 60 90 50 20 20 QPF 12hr 0.01 0.19 0.15 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D L C C S C C C S S S S S S S Tstms C C C C S S C C S S S S S S Obvis F F PF PF Heat index 84 Max heat 84 85 Date Thu 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 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 62 81 59 71 50 69 51 70 Temp 66 67 80 70 61 61 69 64 53 53 67 65 54 54 68 65 Dewpt 59 60 63 60 56 55 48 48 47 47 45 47 47 49 49 50 PWind dir S SW W NW NW NW S S Wind char LT GN GN BZ GN GN GN GN Avg clouds SC B2 B2 B1 SC SC SC SC SC SC SC SC SC SC B1 SC PoP 12hr 50 80 40 40 30 30 30 40 Rain shwrs S C C D C S S C C S S C C S S C Tstms S C S C C S S S S $$ VAZ037-062000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 439 AM EDT Mon May 6 2024 Date Mon 05/06/24 Tue 05/07/24 Wed 05/08/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 64 84 66 90 Temp 64 65 75 79 77 72 69 68 67 67 76 81 81 78 72 69 69 69 81 87 88 81 Dewpt 60 61 63 63 63 62 61 61 60 61 63 62 62 62 62 62 61 62 60 57 56 59 RH 87 87 66 58 62 71 76 78 78 81 64 53 53 58 71 78 76 78 49 36 34 47 Wind dir S S S S SW SW NW SW SW S NE SW W S SW W W SW W W W SW Wind spd 4 4 5 5 5 5 4 3 3 3 3 5 5 5 4 4 5 5 6 10 9 5 Clouds OV B2 OV OV OV OV OV B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC PoP 12hr 80 70 60 20 30 QPF 12hr 0.30 0.06 0.08 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L C S S C L L S S C C C Tstms L L C S S C C S S C C C Heat index 82 82 82 81 Max heat 82 83 86 86 Dense Fog Y Y Date Thu 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 85 61 75 52 73 52 74 Temp 69 67 82 78 65 61 72 69 56 53 70 67 56 53 70 68 Dewpt 58 61 61 58 53 49 44 43 43 42 41 43 43 44 46 47 PWind dir W SW W NW NW NW SW SW Wind char LT GN GN GN GN GN LT GN Avg clouds SC B2 B2 B1 SC SC SC SC FW FW SC SC SC SC SC SC PoP 12hr 60 80 30 40 20 20 30 30 Rain shwrs C L L D C S C S S C S S C Tstms C C S C C S S S S $$ MDZ003-062000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 439 AM EDT Mon May 6 2024 Date Mon 05/06/24 Tue 05/07/24 Wed 05/08/24 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 78 62 76 62 84 Temp 61 63 68 74 75 71 66 64 63 65 70 73 74 71 67 65 64 67 75 81 82 75 Dewpt 61 62 63 64 63 63 63 62 62 62 63 63 63 63 63 63 62 63 60 56 54 56 RH 100 97 84 71 66 76 90 93 97 90 78 71 69 76 87 93 93 87 60 42 38 52 Wind dir S SW W N NE SE N NW N N E NE E SE S SW SW W W W W W Wind spd 3 2 2 2 2 2 0 3 0 3 2 4 4 5 5 5 6 9 13 13 12 10 Clouds OV OV OV OV OV OV OV OV OV B2 B2 B2 B1 B2 B2 B2 B1 SC SC FW FW FW PoP 12hr 50 60 50 30 5 QPF 12hr 0.01 0.07 0.12 0.07 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C C S C C C C C C C Tstms S C C S S S C C C S S Obvis F F PF PF Heat index 81 Max heat 81 82 Dense Fog Y Y Date Thu 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 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 76 56 67 47 67 48 68 Temp 63 62 74 69 58 58 66 60 50 51 65 62 51 52 66 62 Dewpt 56 58 61 58 54 52 48 47 45 45 45 46 46 47 49 49 PWind dir W SW W NW NW NW S S Wind char LT GN GN BZ GN GN GN GN Avg clouds SC B2 B2 B1 SC SC B1 SC SC SC SC SC SC SC B1 B1 PoP 12hr 60 90 50 50 30 40 30 40 Rain shwrs L L D C S C C C S S C C C C C Tstms S S C C S S S $$ MDZ017-062000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 439 AM EDT Mon May 6 2024 Date Mon 05/06/24 Tue 05/07/24 Wed 05/08/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 64 78 65 83 Temp 64 67 73 75 74 69 68 66 65 67 72 76 75 70 67 67 66 69 77 81 81 73 Dewpt 62 64 66 65 65 65 65 64 63 64 65 65 64 64 64 64 63 64 64 63 62 63 RH 93 90 79 71 74 87 90 93 93 90 79 69 69 81 90 90 90 84 64 54 53 71 Wind dir S SW SW S SE S S S SW W NW S SE SE S S SW W W W SW S Wind spd 5 4 5 6 6 4 5 5 5 4 3 5 5 5 5 5 5 5 6 8 8 6 Clouds OV OV OV OV OV OV OV OV B2 OV B2 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC PoP 12hr 50 80 50 20 30 QPF 12hr 0.09 0.17 0.10 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L D C C S C C C S S S S C C S Tstms C C C C C S C C C S S S C C S Obvis F PF Heat index 82 82 Max heat 82 83 Date Thu 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 81 62 75 55 71 55 72 Temp 67 68 80 70 64 64 74 64 57 57 68 64 58 59 70 65 Dewpt 62 63 64 62 59 56 53 52 49 48 47 49 49 50 51 52 PWind dir S SW W NW NW NW S S Wind char GN GN GN GN GN GN GN GN Avg clouds B1 B2 B2 B2 SC SC SC B1 SC SC SC SC SC SC SC B1 PoP 12hr 40 80 50 40 30 20 20 30 Rain shwrs S C C D C C C S S S S S S C Tstms S C S C C S S S $$ WVZ502-062000- Petersburg WV 38.99N 79.15W Elev. 963 ft 439 AM EDT Mon May 6 2024 Date Mon 05/06/24 Tue 05/07/24 Wed 05/08/24 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 59 80 61 85 Temp 58 62 71 77 73 69 65 63 60 63 70 76 78 73 67 66 64 65 75 81 83 76 Dewpt 57 61 63 63 63 63 61 60 59 61 63 63 63 63 62 61 59 60 58 54 54 55 RH 96 97 76 62 71 81 87 90 96 93 78 64 60 71 84 84 84 84 55 39 37 48 Wind dir S N E NE SE NW SW S SW N E W W S SW W W W W W W W Wind spd 2 0 2 3 5 4 2 2 1 0 2 5 8 5 5 5 8 8 10 10 10 6 Clouds OV B2 B2 OV OV OV OV B2 B2 B2 B1 B2 B1 B1 B1 B2 B1 B1 SC FW FW SC PoP 12hr 80 70 60 50 20 QPF 12hr 0.09 0.04 0.10 0.03 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C S C L L C C C C S S C Tstms C C C C S C C C S C S S S S Obvis F F PF PF Heat index 81 Max heat 81 82 Date Thu 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 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 80 54 67 46 68 46 69 Temp 63 62 77 72 60 54 64 61 50 49 65 62 50 50 67 64 Dewpt 55 58 62 56 52 48 47 46 44 43 43 44 44 47 47 49 PWind dir SW W W NW NW W SW SW Wind char LT BZ GN BZ GN GN GN GN Avg clouds B1 OV B2 B1 SC B1 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 80 80 40 50 30 40 30 50 Rain shwrs C D D D C C C C S S C C S C C Tstms S C S C C S S C $$ MDZ014-062000- Annapolis MD 38.99N 76.49W Elev. 7 ft 439 AM EDT Mon May 6 2024 Date Mon 05/06/24 Tue 05/07/24 Wed 05/08/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 65 75 65 83 Temp 64 66 68 72 73 71 68 68 67 66 70 72 74 71 69 67 67 68 75 80 81 76 Dewpt 64 64 66 67 66 65 66 65 64 64 64 65 64 64 65 64 64 64 63 62 61 60 RH 100 93 93 84 79 81 93 90 90 93 81 79 71 79 87 90 90 87 66 54 51 58 Wind dir S S S SE SE S SE S N N NE E E E S S SW SW W W W SW Wind spd 5 3 5 6 5 4 5 4 4 4 4 6 6 5 4 4 5 4 8 9 9 6 Clouds OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 B2 B1 SC SC FW FW PoP 12hr 40 80 40 20 20 QPF 12hr 0 0.22 0.16 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C D C C S C C C S S S S S S Tstms C C C C C S C C S S S S S S Obvis F F PF Heat index 81 82 Max heat 81 82 Coast Flood Y Y Dense Fog Y Y Date Thu 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 05/12/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 76 61 71 54 68 55 70 Temp 68 67 74 70 63 61 68 65 57 54 65 65 59 56 67 66 Dewpt 60 60 63 60 57 55 52 49 49 48 47 48 50 50 51 51 PWind dir S SW NW NW NW NW SW S Wind char LT GN GN BZ GN GN GN GN Avg clouds SC B2 B2 B2 B1 SC SC B1 SC SC SC SC SC SC SC B1 PoP 12hr 40 80 50 40 30 20 30 30 Rain shwrs C C D C S S C C S S S C S C C Tstms C S C C S S S $$