Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
434 FOUS51 KLWX 092042 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 442 PM EDT Thu May 9 2024 VAZ054-100800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 442 PM EDT Thu May 9 2024 Date 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 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 63 51 65 52 Temp 72 67 62 60 59 58 61 62 61 58 56 52 51 53 58 64 65 61 56 53 53 55 Dewpt 56 56 55 56 55 54 53 52 51 48 48 47 47 47 46 45 46 47 49 49 49 50 RH 57 68 78 87 87 86 75 70 70 69 74 83 86 80 64 50 50 60 77 86 86 83 Wind dir NE E E E NE NE E E NE NE NE N N N N N SE SE SE S SW NW Wind spd 11 10 8 5 4 6 9 10 12 10 8 5 5 5 4 5 8 6 5 5 4 8 Clouds B2 B2 B2 OV OV OV OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 OV B2 B2 SC PoP 12hr 60 70 50 40 60 QPF 12hr 0.26 0.11 0.06 0.01 0.14 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C C C C L L C C C C L L C C C Tstms S C S C C S S S S S Date 05/12 Mon 05/13/24 Tue 05/14/24 Wed 05/15/24 Thu 05/16/24 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 52 77 61 77 63 76 64 80 Temp 65 64 54 57 75 72 63 66 74 70 65 65 74 72 66 66 78 76 Dewpt 46 46 47 49 49 51 53 55 58 58 60 61 61 60 60 62 61 59 PWind dir NW W S S S SE E N NW Wind char GN LT GN GN GN GN GN GN GN Avg clouds SC SC FW FW SC SC SC B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 PoP 12hr 40 5 5 10 40 60 60 50 40 Rain shwrs C C S C L L L L C C C C Tstms C S C C C $$ MDZ013-100800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 442 PM EDT Thu May 9 2024 Date 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 54 59 48 64 50 Temp 69 65 59 57 56 57 57 59 58 55 52 50 48 49 57 62 64 59 55 51 51 52 Dewpt 56 56 56 55 54 54 53 51 51 49 48 47 46 47 47 46 46 48 49 50 49 50 RH 63 73 90 93 93 90 86 75 77 80 86 89 93 93 69 56 52 67 80 96 93 93 Wind dir E E E E E E E E E NE NE NE N N N SE SE SE SE S S NW Wind spd 9 8 8 6 5 8 10 10 9 6 6 5 4 5 4 5 5 5 6 8 8 10 Clouds B2 B2 OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 OV OV B2 B1 PoP 12hr 70 70 50 30 60 QPF 12hr 0.16 0.11 0.07 0.02 0.12 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C C L L L L C C C C L L C C C Tstms S S S S Date 05/12 Mon 05/13/24 Tue 05/14/24 Wed 05/15/24 Thu 05/16/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 66 48 75 59 77 60 74 61 78 Temp 63 62 51 53 74 70 60 64 74 69 63 62 72 70 64 64 76 74 Dewpt 48 48 48 49 50 52 54 56 58 59 60 61 62 61 61 62 61 61 PWind dir NW W S S S SE E N NE Wind char GN LT GN GN GN GN GN GN GN Avg clouds B1 SC FW FW SC SC SC B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 PoP 12hr 40 5 5 10 40 60 60 50 40 Rain shwrs C C S C C L L L C C C C Tstms S S C S S $$ MDZ011-100800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 442 PM EDT Thu May 9 2024 Date 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 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 62 52 67 54 Temp 72 66 64 61 60 58 62 62 62 57 57 53 53 55 61 65 67 61 59 55 55 58 Dewpt 55 55 55 54 54 52 51 50 49 48 47 47 46 46 45 45 45 46 48 48 48 48 RH 55 68 73 78 81 80 67 65 62 72 69 80 77 72 56 48 45 58 67 77 77 69 Wind dir NE E E E E E E E E NE NE NE N N N S SE SE SE S S NW Wind spd 9 6 6 6 5 8 9 9 9 5 5 5 4 5 4 5 5 5 6 8 8 10 Clouds B2 B2 OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 OV OV B2 B1 PoP 12hr 70 80 40 40 60 QPF 12hr 0.17 0.12 0.06 0.03 0.16 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C C L L D D C C C C L L C C C Tstms S S S S Date 05/12 Mon 05/13/24 Tue 05/14/24 Wed 05/15/24 Thu 05/16/24 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 70 55 79 64 77 66 80 67 83 Temp 67 64 57 59 77 71 65 66 75 67 67 68 77 73 68 69 81 76 Dewpt 46 46 47 48 49 50 53 54 57 57 59 60 60 59 60 60 59 59 PWind dir N W S S S SE E NE NE Wind char GN LT GN GN GN GN GN GN GN Avg clouds B1 SC FW FW SC SC SC B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 PoP 12hr 40 5 5 10 40 60 60 50 40 Rain shwrs C C S C C L L L C C C C Tstms S S C S S $$ WVZ052-100800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 442 PM EDT Thu May 9 2024 Date 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 54 60 45 63 47 Temp 65 63 57 56 54 54 54 57 59 56 50 48 46 47 57 62 63 58 51 49 48 50 Dewpt 55 55 55 53 53 52 51 51 49 47 46 45 44 45 45 44 45 46 47 46 45 47 RH 70 75 93 90 96 93 90 80 69 72 86 89 93 93 64 52 52 64 86 89 89 89 Wind dir NE NE NE E NE NE NE NE N N N N N N W SW SW S S SW W NW Wind spd 6 6 5 5 5 5 6 6 8 6 5 4 3 3 4 5 5 5 5 5 5 10 Clouds OV OV OV OV OV B2 OV OV OV OV OV B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 SC PoP 12hr 90 70 40 60 60 QPF 12hr 0.36 0.20 0.04 0.06 0.17 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L D L C L L L L C C S S L L L L C C C Tstms C C S S S S S S S S S Date 05/12 Mon 05/13/24 Tue 05/14/24 Wed 05/15/24 Thu 05/16/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 65 44 74 54 74 58 72 58 76 Temp 61 61 47 49 71 69 57 60 71 69 61 60 69 70 61 62 74 73 Dewpt 44 44 42 45 48 50 49 53 56 56 57 59 59 58 56 58 59 58 PWind dir NW SW S S S SE E N W Wind char GN LT GN GN GN GN GN GN GN Avg clouds SC SC FW FW SC SC SC B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 50 5 10 20 50 60 70 50 50 Rain shwrs C C S C C C L L L C C C C Tstms C C C C C $$ VAZ506-100800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 442 PM EDT Thu May 9 2024 Date 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 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 62 48 65 49 Temp 70 66 61 58 57 58 60 62 61 57 52 51 48 50 59 64 65 60 54 52 51 53 Dewpt 57 58 58 56 56 56 55 53 51 50 48 48 47 47 47 46 48 50 50 50 49 50 RH 63 75 90 93 96 93 84 72 70 77 86 89 96 89 64 52 54 69 86 93 93 89 Wind dir E E E E NE NE NE NE NE NE N N N N N W S S S S SW NW Wind spd 6 8 5 4 3 4 8 8 6 5 4 5 3 4 3 4 3 4 4 6 6 10 Clouds B2 B2 B2 B2 OV B2 OV OV OV OV OV B2 B2 B2 B1 B1 B2 OV B2 B2 B2 SC PoP 12hr 70 70 50 50 60 QPF 12hr 0.27 0.15 0.04 0.03 0.24 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C C C C L L C C C C L L C C C Tstms S C S C S S S S S S S S Date 05/12 Mon 05/13/24 Tue 05/14/24 Wed 05/15/24 Thu 05/16/24 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 47 76 57 76 60 74 61 78 Temp 64 63 50 53 74 71 60 62 73 69 63 62 73 71 64 63 77 75 Dewpt 47 48 46 48 50 52 53 55 58 59 60 61 62 62 60 62 62 62 PWind dir NW W S S S SE E N NW Wind char GN LT GN GN GN GN GN GN GN Avg clouds SC SC FW FW SC SC SC B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 PoP 12hr 40 5 5 20 40 60 60 50 40 Rain shwrs C C S S C L L L L C C C C Tstms C C C C C $$ VAZ037-100800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 442 PM EDT Thu May 9 2024 Date 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 59 72 50 69 49 Temp 78 70 65 62 59 61 70 72 68 62 56 51 50 54 63 68 68 61 57 51 51 55 Dewpt 61 60 59 58 56 55 54 52 50 46 46 45 44 44 44 43 44 47 46 46 44 45 RH 56 71 81 87 90 81 57 49 52 56 69 80 80 69 50 40 42 60 67 83 77 69 Wind dir E NE NE NE NE NW NW NW N N N N N N N SW SW W SW W W W Wind spd 6 6 4 4 3 5 6 9 9 8 5 5 4 4 4 5 5 4 3 4 4 8 Clouds OV B2 B1 B1 B1 B1 SC B1 B2 B1 B1 B1 B1 B1 SC B1 B2 B2 B1 SC SC FW PoP 12hr 60 50 40 50 40 QPF 12hr 0.22 0.10 0.03 0.09 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C C C C C C C C C C S Tstms C C C C C S S Date 05/12 Mon 05/13/24 Tue 05/14/24 Wed 05/15/24 Thu 05/16/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 73 49 78 59 76 63 78 63 82 Temp 70 66 52 55 76 72 61 65 73 71 66 66 76 73 65 66 80 77 Dewpt 41 42 42 44 46 49 50 53 55 56 58 59 60 59 58 58 60 59 PWind dir NW W S S S S SW NW SW Wind char GN LT GN LT GN LT GN LT GN Avg clouds FW FW FW FW FW SC SC B1 B1 B2 B2 B2 B2 B1 B1 B1 SC SC PoP 12hr 20 0 5 20 50 60 70 40 50 Rain shwrs S S S C C L C L L C S C C Tstms C C C C S $$ MDZ003-100800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 442 PM EDT Thu May 9 2024 Date 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 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 54 59 47 63 48 Temp 64 61 58 56 55 54 59 59 59 56 52 50 47 49 56 62 62 58 53 49 49 52 Dewpt 55 55 55 55 54 53 52 51 49 48 47 47 46 47 47 46 46 48 49 48 47 48 RH 73 81 90 96 96 96 78 75 69 74 83 89 96 93 72 56 56 69 86 96 93 86 Wind dir NE NE NE NE NE NE E NE NE NE NE N N N SW SW SW S SE S SW W Wind spd 6 8 8 6 6 8 8 8 8 6 5 5 3 3 3 5 5 5 6 6 5 10 Clouds OV OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 SC PoP 12hr 90 80 50 60 60 QPF 12hr 0.41 0.26 0.04 0.07 0.24 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L D L L L L D D C C S S L L L L C C C Tstms S S S S S S S S S S Date 05/12 Mon 05/13/24 Tue 05/14/24 Wed 05/15/24 Thu 05/16/24 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 65 46 75 55 74 59 73 59 76 Temp 62 61 49 51 73 69 57 60 71 68 61 61 71 69 61 62 75 73 Dewpt 46 46 45 47 51 52 51 54 58 59 58 60 60 59 58 60 61 60 PWind dir NW SW S S S SE E NE W Wind char GN LT GN GN GN GN GN GN GN Avg clouds SC SC FW FW SC SC SC B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 50 5 10 20 50 60 60 50 50 Rain shwrs C C S S C C C L L L C C C C Tstms C C C S S $$ MDZ017-100800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 442 PM EDT Thu May 9 2024 Date 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 58 65 52 65 53 Temp 73 65 60 59 58 60 63 64 62 57 55 53 52 54 60 64 64 60 56 53 55 57 Dewpt 59 59 58 58 57 57 56 54 52 51 50 48 47 47 47 46 46 48 50 51 50 51 RH 62 81 93 96 96 90 78 70 70 80 83 83 83 77 62 52 52 64 80 93 83 80 Wind dir E E E E NE NE NE E NE NE NE N N N N N SE SE SE S S NW Wind spd 9 10 10 5 5 6 10 11 11 10 10 9 8 6 6 6 6 8 9 9 10 11 Clouds B1 B1 OV B2 B2 B2 OV B2 B2 OV OV B2 B2 B1 B1 B1 SC B2 B2 B2 B2 SC PoP 12hr 70 70 50 30 50 QPF 12hr 0.20 0.11 0.04 0.01 0.12 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L S S C C L L C C C C C C C C C Tstms C S S S S S S Date 05/12 Mon 05/13/24 Tue 05/14/24 Wed 05/15/24 Thu 05/16/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 69 53 74 61 77 63 76 64 78 Temp 67 64 55 58 73 68 62 66 75 70 65 66 75 69 65 66 76 72 Dewpt 49 50 49 51 52 55 54 56 59 60 60 62 63 62 61 62 62 61 PWind dir NW S S S S S S NW W Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC FW FW FW SC SC B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 SC PoP 12hr 30 0 0 10 30 60 60 40 40 Rain shwrs C C S C C L L C C C C C Tstms S C S S C $$ WVZ502-100800- Petersburg WV 38.99N 79.15W Elev. 963 ft 442 PM EDT Thu May 9 2024 Date 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun 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 54 64 44 65 46 Temp 71 66 61 59 56 57 60 63 63 57 50 48 44 48 59 65 64 59 51 49 48 50 Dewpt 62 60 59 57 55 54 52 50 49 46 46 45 43 44 43 43 46 47 47 45 45 45 RH 73 81 93 93 96 90 75 62 60 67 86 89 96 86 55 45 52 64 86 86 89 83 Wind dir NE N NE NW N NW NW NW NW N NW NW NW W W W W W W W W NW Wind spd 5 5 4 4 4 5 6 8 10 8 4 3 2 2 4 6 9 6 4 5 5 10 Clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 SC B2 B2 B2 B2 B1 B1 SC PoP 12hr 70 70 40 70 40 QPF 12hr 0.39 0.05 0.02 0.06 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L L C C L L L L C C S S L L C C S S C Tstms C L C C S S S S S S S Date 05/12 Mon 05/13/24 Tue 05/14/24 Wed 05/15/24 Thu 05/16/24 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 79 55 76 58 76 59 81 Temp 65 62 48 51 76 71 58 59 73 69 62 60 73 71 62 62 77 74 Dewpt 43 44 42 44 48 51 50 53 56 58 58 58 60 60 58 58 61 60 PWind dir NW SW SW SW S S W W SW Wind char GN LT GN GN GN LT GN LT GN Avg clouds SC FW FW FW SC SC SC B1 B1 B1 B2 B2 B1 B1 B1 B1 SC SC PoP 12hr 30 0 10 20 50 60 70 40 50 Rain shwrs C C S S C C L C L L C S C C Tstms S C C S C C S $$ MDZ014-100800- Annapolis MD 38.99N 76.49W Elev. 7 ft 442 PM EDT Thu May 9 2024 Date 05/09/24 Fri 05/10/24 Sat 05/11/24 Sun EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 57 60 51 63 53 Temp 69 66 61 59 58 60 57 60 57 57 54 51 51 54 57 61 63 61 57 54 54 56 Dewpt 57 56 56 56 55 54 53 53 51 50 49 48 47 47 46 47 46 48 50 51 50 50 RH 66 70 84 90 90 81 86 78 80 77 83 89 86 77 67 60 54 62 77 90 86 80 Wind dir NE E E E E E E E E NE NE NE N N N N SE SE SE S S NW Wind spd 9 9 8 6 6 8 10 10 10 8 8 6 6 5 5 6 6 6 6 8 8 10 Clouds OV B2 OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 OV OV B2 B1 PoP 12hr 70 70 50 30 60 QPF 12hr 0.23 0.13 0.07 0.01 0.18 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L C C L L L L C C C C L L C C C Tstms S S S S S Date 05/12 Mon 05/13/24 Tue 05/14/24 Wed 05/15/24 Thu 05/16/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 66 53 73 61 75 63 74 64 76 Temp 62 62 55 56 70 68 62 65 72 69 65 65 71 70 65 66 73 71 Dewpt 49 48 50 51 52 54 56 56 59 59 61 61 63 61 62 62 62 60 PWind dir NW W S S S SE E NE NE Wind char GN LT GN GN GN GN GN GN GN Avg clouds SC SC FW FW SC SC SC B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 SC PoP 12hr 40 5 5 10 30 60 60 50 40 Rain shwrs C C S C C L L L C C C C Tstms S S C S S $$