Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
653 FOUS51 KLWX 122037 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 437 PM EDT Sun May 12 2024 VAZ054-130800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 437 PM EDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed 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 52 77 61 73 63 Temp 67 65 58 54 53 56 66 74 76 71 66 62 62 64 69 70 70 68 66 65 63 64 Dewpt 46 46 48 49 48 50 51 49 50 51 52 53 54 56 58 59 60 60 61 62 62 62 RH 47 50 69 83 83 80 58 41 40 49 61 72 75 75 68 68 71 76 84 90 97 93 Wind dir NW N NE S SE S S S S S S S S S S S S S SE SE E E Wind spd 17 9 6 4 4 5 11 11 14 13 10 9 9 9 12 13 14 11 10 6 5 6 Clouds B1 SC SC SC B1 SC FW FW FW SC SC SC B1 B2 OV OV OV OV OV OV OV OV PoP 12hr 10 0 20 70 90 QPF 12hr 0 0 0 0.09 0.55 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C L L D D L L D Tstms S C C S S S Date 05/15 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 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 62 75 61 76 62 72 62 79 Temp 70 69 64 64 73 72 63 63 74 71 63 64 70 70 64 64 77 75 Dewpt 62 60 59 57 57 57 57 57 58 57 57 59 61 60 59 59 58 60 PWind dir NE N N E SE SE SE NE N Wind char GN GN GN LT GN GN GN GN GN Avg clouds OV B2 B2 B2 B1 SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 80 40 20 5 20 50 50 30 20 Rain shwrs D D C C S S S S C C C C C C S S Tstms S C C S S S S S $$ MDZ013-130800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 437 PM EDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 50 75 58 73 61 Temp 64 61 56 53 52 54 64 72 74 68 63 60 59 62 69 69 69 67 65 63 61 62 Dewpt 49 50 51 50 50 52 53 51 52 53 54 54 54 56 59 59 60 61 62 62 61 62 RH 58 67 83 89 93 93 67 48 46 59 72 81 83 81 70 70 73 81 90 97100100 Wind dir N NE E SE SW S S S S S S S S S S S S S S SE E E Wind spd 12 4 3 3 2 3 5 8 10 9 9 5 5 6 10 12 11 9 8 6 5 10 Clouds B1 SC SC B1 B2 B1 SC SC FW SC SC SC B1 B2 OV OV OV OV OV OV OV OV PoP 12hr 10 0 10 70 90 QPF 12hr 0 0 0 0.06 0.57 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C L L D D L L D Tstms S S C C S S S Date 05/15 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 69 59 75 58 75 58 70 59 77 Temp 69 67 61 61 73 71 61 61 73 70 60 60 68 68 61 61 75 72 Dewpt 62 61 58 58 58 58 58 57 58 57 57 59 61 60 59 59 59 60 PWind dir NE N N E SE SE SE NE NW Wind char GN GN GN GN GN GN GN GN GN Avg clouds OV B2 B2 B2 B1 SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 80 40 20 10 20 50 50 30 20 Rain shwrs D D C C S S S S C C C C C C S S Tstms S C C S S S $$ MDZ011-130800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 437 PM EDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed 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 80 63 78 66 Temp 68 65 61 57 57 60 69 77 79 71 68 64 64 68 74 74 74 69 70 67 66 67 Dewpt 48 48 50 49 50 50 51 50 50 52 54 53 54 55 58 58 59 60 61 61 61 60 RH 49 54 67 75 77 69 53 39 36 51 61 67 70 63 57 57 59 73 73 81 84 78 Wind dir N NE E E S SE S S S S S S S S S S S S S SE SE E Wind spd 10 4 4 3 3 3 5 8 10 8 8 5 5 5 10 11 11 8 8 5 5 10 Clouds B1 SC SC B1 B2 B1 SC SC FW SC SC SC B1 B2 OV OV OV OV OV OV OV OV PoP 12hr 10 0 10 70 90 QPF 12hr 0 0 0 0.05 0.57 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C L L D D L L D Tstms S S S C S S S Date 05/15 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 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 75 64 79 64 79 64 75 65 82 Temp 73 70 66 66 77 72 66 67 77 72 66 66 73 70 67 67 80 75 Dewpt 61 59 58 57 56 57 56 56 56 56 56 57 59 59 58 58 58 59 PWind dir NE N NE E SE SE E NE NW Wind char GN GN GN LT GN GN GN GN GN Avg clouds OV B2 B2 B2 B1 SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 80 40 30 10 20 50 60 30 20 Rain shwrs D D C C C C S S C C L L C C S S Tstms S C S S S S $$ WVZ052-130800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 437 PM EDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 43 76 54 70 59 Temp 63 61 52 48 45 50 65 73 75 68 61 58 56 59 64 67 67 66 63 62 60 61 Dewpt 44 44 43 43 42 45 48 48 49 49 48 48 49 53 56 58 58 58 58 59 59 60 RH 50 53 71 83 89 83 54 41 40 51 62 69 77 80 75 73 73 75 84 90 96 97 Wind dir NW NW W SW SW S S S S S S S S S S S S S SE SE E NE Wind spd 14 5 3 2 2 3 6 9 10 11 9 5 4 6 9 11 12 10 9 5 5 5 Clouds B1 SC FW FW FW FW FW FW SC SC SC SC B1 B2 OV OV OV OV OV OV OV OV PoP 12hr 5 5 30 80 90 QPF 12hr 0 0 0 0.11 0.33 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L D D D D L L D Tstms S C C S S S Date 05/15 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 69 56 73 55 73 57 69 56 77 Temp 67 67 58 58 71 70 58 59 71 69 59 59 67 68 59 59 74 72 Dewpt 60 58 56 56 56 56 54 56 58 57 56 57 59 57 56 56 58 58 PWind dir NE N N E SE SE SE W NW Wind char LT GN GN LT GN GN GN LT GN Avg clouds OV B2 B2 B1 B1 SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 90 40 20 5 30 60 60 30 20 Rain shwrs D D C C S S C C L L L L C C S S Tstms S C C S C S S S S S $$ VAZ506-130800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 437 PM EDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed 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 47 77 57 71 62 Temp 66 63 55 51 48 53 66 74 76 71 64 61 59 62 67 68 68 67 65 64 62 63 Dewpt 47 47 48 48 47 49 51 50 51 52 52 53 53 56 59 59 60 61 62 62 62 63 RH 50 56 77 89 96 86 58 43 42 51 65 75 80 81 75 73 76 81 90 93100100 Wind dir NW N N N N S S S S S S S S S S S S S SE SE E NE Wind spd 14 4 0 0 0 2 6 9 9 8 8 5 6 9 11 13 13 10 6 5 4 8 Clouds B1 SC FW FW SC SC FW FW SC SC SC SC B1 B2 OV OV OV OV OV OV OV B2 PoP 12hr 5 0 20 80 90 QPF 12hr 0 0 0 0.08 0.45 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C D D D D L L D Tstms S C C S S S Date 05/15 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 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 60 75 58 75 59 71 59 77 Temp 68 68 61 62 73 72 61 61 73 71 61 61 69 70 61 62 75 74 Dewpt 62 61 59 58 58 59 58 58 59 59 59 60 61 61 59 59 59 62 PWind dir NE N N E SE SE SE N NW Wind char GN GN GN LT GN GN GN GN GN Avg clouds B2 B2 B2 B2 B1 SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 90 40 20 10 30 60 60 30 20 Rain shwrs D D C C S S C C L L L L C C S S Tstms S C C S C S S S S S $$ VAZ037-130800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 437 PM EDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 48 79 59 72 63 Temp 71 68 58 53 51 57 70 76 79 71 66 61 62 63 67 68 69 67 66 64 63 65 Dewpt 41 41 42 42 40 44 46 46 46 47 48 50 52 55 58 59 59 58 59 59 59 59 RH 34 37 55 66 66 62 42 34 31 42 52 67 70 75 73 73 70 73 78 84 87 81 Wind dir N N N W W SW S S S S SW S S S S S S SE SE E N N Wind spd 12 5 2 2 2 3 6 9 10 6 5 5 8 8 9 9 10 6 5 5 4 5 Clouds SC FW FW FW FW CL FW FW SC SC B1 B2 B2 OV OV OV OV OV OV OV B2 B2 PoP 12hr 0 0 50 90 90 QPF 12hr 0 0 0.05 0.29 0.57 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L D D D D L L D Tstms C C C S S S Date 05/15 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 75 61 78 60 78 63 77 61 82 Temp 73 71 63 64 76 72 63 64 76 72 65 65 74 73 63 65 80 76 Dewpt 61 59 58 57 56 56 55 56 58 57 58 58 60 58 56 57 58 59 PWind dir N N NE NE SE SE SE NW N Wind char LT LT GN LT GN GN GN LT GN Avg clouds B2 B2 B2 B1 SC SC SC B1 B2 B2 B2 B2 B1 B1 B1 B1 B1 SC PoP 12hr 90 30 20 5 40 60 60 20 30 Rain shwrs D D C C S S C C L L L L S S C C Tstms C C C S S C C S S C S S $$ MDZ003-130800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 437 PM EDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed 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 45 76 56 71 60 Temp 64 61 53 49 47 53 65 73 75 68 62 59 57 61 65 67 68 66 64 62 60 62 Dewpt 47 48 47 45 45 47 51 52 51 52 51 50 51 55 58 59 59 59 60 60 60 61 RH 54 62 80 86 93 80 60 48 43 57 67 72 80 81 78 75 73 78 87 93100 97 Wind dir NW NW N S S S S S S S S S S S S S S S SE SE E E Wind spd 12 5 0 2 2 4 8 10 10 13 11 9 6 8 12 13 14 12 10 9 5 5 Clouds B1 SC FW SC FW SC FW FW FW SC SC SC B1 B2 OV OV OV OV OV OV OV OV PoP 12hr 10 5 20 80 90 QPF 12hr 0 0 0 0.10 0.27 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S L L D D D D L L D Tstms S C C S S S Date 05/15 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 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 57 74 57 75 58 70 58 77 Temp 68 67 59 60 72 70 59 60 73 69 60 60 68 68 60 60 75 72 Dewpt 62 59 57 57 58 57 55 57 59 59 57 58 60 60 57 58 59 60 PWind dir NE N N E SE SE SE W NW Wind char GN GN GN LT GN GN GN GN GN Avg clouds OV B2 B2 B1 B1 SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 90 40 20 5 30 60 60 30 30 Rain shwrs D D C C S S C C L L L L C C C C Tstms S C C C S S S S $$ MDZ017-130800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 437 PM EDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 53 74 62 75 63 Temp 67 63 57 56 55 59 67 71 71 67 64 64 63 66 71 72 71 68 66 65 63 65 Dewpt 49 50 51 51 51 53 53 54 53 55 55 55 56 58 60 60 60 61 61 62 61 63 RH 52 62 80 83 86 80 61 55 53 65 73 73 78 75 68 66 68 78 84 90 93 93 Wind dir NW N E SE S S S SE SE S S S S S S S S S SE SE SE E Wind spd 14 6 4 4 4 4 5 10 11 12 11 10 10 9 10 11 12 11 10 10 8 12 Clouds B1 SC FW FW SC SC FW FW FW SC SC SC B1 B2 B2 OV OV OV OV OV OV B2 PoP 12hr 5 0 5 60 90 QPF 12hr 0 0 0 0.10 0.73 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C L L D D L L D Tstms S C C S S S S Coast Flood Y Y Date 05/15 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 73 61 75 60 75 61 74 61 77 Temp 73 68 63 63 73 69 62 63 74 68 63 64 72 69 63 64 77 70 Dewpt 63 61 59 59 58 59 57 58 58 57 57 60 62 61 59 59 60 60 PWind dir NE N N NE E SE SE NE N Wind char GN GN GN GN GN GN GN GN GN Avg clouds B2 B2 B2 B1 SC SC SC SC B1 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 80 30 20 10 20 50 50 30 20 Rain shwrs D D C C S S S S C C C C C C S S Tstms S C C S S S $$ WVZ502-130800- Petersburg WV 38.99N 79.15W Elev. 963 ft 437 PM EDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed 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 44 80 57 73 59 Temp 66 62 51 48 45 52 69 77 79 71 63 61 59 60 66 69 70 67 63 61 59 60 Dewpt 42 43 42 40 40 42 45 45 47 49 49 50 51 55 58 60 60 59 59 59 59 60 RH 42 50 71 74 82 69 42 32 32 46 60 67 75 84 75 73 71 75 87 93100100 Wind dir NW E SE S S S S S S S S S S S S S S S SE SE E N Wind spd 12 5 2 2 2 4 4 5 10 9 6 5 6 8 8 10 10 6 4 3 2 3 Clouds SC FW CL FW CL CL FW FW SC SC B1 B2 B2 B2 OV OV OV OV OV OV OV B2 PoP 12hr 0 5 40 80 80 QPF 12hr 0 0 0 0.12 0.34 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L D D D D L L D Tstms C C C C S S Date 05/15 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 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 57 77 55 78 59 75 57 80 Temp 70 67 61 58 74 71 58 59 75 71 61 61 73 70 60 60 77 73 Dewpt 62 59 58 57 58 57 55 56 60 60 59 60 61 60 57 58 60 60 PWind dir N N N S SE SE S W W Wind char LT LT GN LT GN GN GN GN GN Avg clouds B2 B2 B2 B2 B1 SC SC B1 B1 B2 B2 B2 B1 B1 B1 B1 SC SC PoP 12hr 90 40 30 5 40 60 60 20 30 Rain shwrs D D C C C C C C L L L L S S C C Tstms C C C S S C C S S C S S $$ MDZ014-130800- Annapolis MD 38.99N 76.49W Elev. 7 ft 437 PM EDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 53 72 61 72 63 Temp 63 62 58 55 55 57 64 68 71 67 64 63 63 65 69 69 69 67 66 65 64 65 Dewpt 50 50 52 51 51 52 53 54 54 54 56 56 56 58 60 61 61 61 62 62 61 62 RH 62 65 80 86 86 83 67 61 55 63 75 78 78 78 73 76 76 81 87 90 90 90 Wind dir N NE E SE S S S S S S S S S S S S S S S SE SE E Wind spd 11 5 4 4 4 4 8 10 11 12 10 9 8 8 10 10 12 11 9 9 8 10 Clouds B1 SC SC B1 B1 B1 SC SC FW SC SC SC B1 B2 OV OV OV OV OV OV OV OV PoP 12hr 10 0 10 70 90 QPF 12hr 0 0 0 0.08 0.67 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C L L D D L L D Tstms S S C C S S S S Date 05/15 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 70 61 73 60 73 60 70 61 76 Temp 69 68 64 62 70 69 62 63 71 69 62 62 68 68 63 64 73 72 Dewpt 63 61 60 59 59 59 58 58 59 58 58 59 61 60 59 59 61 60 PWind dir NE N N E SE SE SE NE N Wind char GN GN GN GN GN GN GN GN GN Avg clouds OV B2 B2 B2 B1 SC SC SC B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 80 40 20 10 20 50 50 30 20 Rain shwrs D D C C S S S S C C C C C C S S Tstms S C C S S S $$