Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
372 FOUS51 KLWX 230837 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 437 AM EDT Thu May 23 2024 VAZ054-232000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 437 AM EDT Thu May 23 2024 Date Thu 05/23/24 Fri 05/24/24 Sat 05/25/24 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 67 86 68 84 Temp 73 73 77 82 82 78 73 70 68 70 78 82 83 78 73 70 69 71 77 81 81 76 Dewpt 66 66 66 66 64 66 66 65 64 64 60 60 60 63 66 65 65 67 67 68 68 69 RH 79 79 69 58 55 67 79 84 87 81 54 47 46 60 79 84 87 87 71 65 65 79 Wind dir SW W NW W SW SW W W W N N NW W S S S S S SE S S SE Wind spd 5 4 6 5 6 5 5 3 4 4 4 5 4 4 4 3 3 4 5 8 9 8 Clouds B2 B2 OV B2 B2 OV OV B2 B2 B1 SC SC SC SC SC B1 B1 B1 B2 B2 B1 B1 PoP 12hr 50 60 20 20 50 QPF 12hr 0.15 0.05 0.01 0.03 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S C C C C S S S C C C C C Tstms S S S S C S S S C C C Heat index 84 83 82 83 84 84 Max heat 84 84 82 84 84 85 Date Sun 05/26/24 Mon 05/27/24 Tue 05/28/24 Wed 05/29/24 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 69 83 65 78 62 78 Temp 68 70 83 79 71 69 80 77 70 66 76 74 65 64 75 72 Dewpt 65 65 64 65 66 67 67 67 63 60 57 57 56 57 55 54 PWind dir S SE S S SW W W W Wind char LT LT LT GN GN GN LT GN Avg clouds B1 B1 SC B1 B2 B2 B2 B2 B1 SC SC SC SC SC SC B1 PoP 12hr 50 30 50 70 60 30 20 30 Rain shwrs C S C C C L L L L C C S S C C Tstms C S S S C C S S $$ MDZ013-232000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 437 AM EDT Thu May 23 2024 Date Thu 05/23/24 Fri 05/24/24 Sat 05/25/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 66 86 65 84 Temp 71 72 76 81 82 77 72 68 66 69 78 83 83 78 71 68 66 69 76 81 80 75 Dewpt 66 66 66 65 64 65 66 64 63 61 58 57 59 61 63 64 64 65 66 68 67 68 RH 84 81 71 58 55 67 81 87 90 76 50 41 44 56 76 87 93 87 71 65 65 79 Wind dir SW W NW W W SW W W W N N NW W S S S SE SE SE S S S Wind spd 2 4 6 5 5 4 4 4 3 4 4 4 4 3 2 2 2 3 5 8 8 6 Clouds B2 B2 OV B2 B2 OV OV B2 B2 B1 SC FW SC SC SC B1 B1 B2 B2 B2 B1 B2 PoP 12hr 50 50 10 20 40 QPF 12hr 0.10 0.20 0 0.01 0.14 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C S S S C C C Tstms S S S S C S S C C C Heat index 83 83 83 84 82 Max heat 83 84 82 84 84 83 Coast Flood Y Y Date Sun 05/26/24 Mon 05/27/24 Tue 05/28/24 Wed 05/29/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 84 66 81 62 76 59 75 Temp 67 69 82 77 68 68 78 74 66 66 76 73 62 63 74 70 Dewpt 65 65 65 66 65 66 68 67 63 60 59 59 56 58 56 56 PWind dir SW SE S S SW W W W Wind char LT LT LT LT LT GN LT GN Avg clouds B1 B1 SC B1 B2 B2 B2 B2 B1 SC SC SC SC SC B1 SC PoP 12hr 40 30 50 70 60 40 20 40 Rain shwrs C C C C C L L L L C C S S C C Tstms C S S S C C S S $$ MDZ011-232000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 437 AM EDT Thu May 23 2024 Date Thu 05/23/24 Fri 05/24/24 Sat 05/25/24 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 85 69 88 69 85 Temp 73 74 78 83 83 78 74 71 69 71 79 84 84 79 74 71 69 71 77 81 80 76 Dewpt 67 66 66 65 64 65 66 63 62 61 56 56 57 61 64 64 64 64 66 67 67 67 RH 81 76 67 55 53 64 76 76 78 71 45 38 40 54 71 79 84 79 69 63 65 74 Wind dir W W NW W SW SW W NW NW N N NW S S S S SE SE SE SE SE S Wind spd 2 4 6 4 5 4 3 4 3 4 4 3 3 3 2 2 2 2 5 8 8 6 Wind gust 14 Clouds B2 B2 OV B2 B2 B2 OV B2 B2 B1 SC FW FW SC SC B1 B1 B2 B2 B2 B1 B2 PoP 12hr 50 50 10 20 40 QPF 12hr 0.09 0.20 0 0.01 0.15 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C S S S C C C Tstms S S S C C S S C C C Heat index 85 84 83 82 Max heat 85 85 83 84 83 83 Date Sun 05/26/24 Mon 05/27/24 Tue 05/28/24 Wed 05/29/24 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 88 69 86 68 82 65 80 Temp 69 70 85 82 74 69 82 80 73 68 79 77 69 65 77 75 Dewpt 64 64 64 64 65 65 66 66 63 59 56 57 56 56 55 54 PWind dir SW SE S S SW W W W Wind char LT LT LT LT LT GN LT LT Avg clouds B1 B1 SC B1 B2 B2 B2 B2 B1 SC SC SC SC SC B1 SC PoP 12hr 40 30 50 80 60 40 20 40 Rain shwrs C C C C C D D L L C C S S C C Tstms C S S S L C S S $$ WVZ052-232000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 437 AM EDT Thu May 23 2024 Date Thu 05/23/24 Fri 05/24/24 Sat 05/25/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 61 83 60 83 Temp 68 69 75 80 80 74 67 64 62 66 75 80 81 76 67 63 61 65 75 80 79 73 Dewpt 65 64 66 65 63 64 63 61 60 62 60 60 61 63 63 62 60 62 66 66 66 66 RH 90 84 74 60 56 71 87 90 93 87 60 51 51 64 87 97 97 90 74 62 64 79 Wind dir SW W W W W NW W W NW NW N NW S S S S SE S S S S S Wind spd 4 5 4 4 6 4 3 2 2 3 3 3 3 3 2 2 1 2 4 6 6 5 Wind gust 16 Clouds OV OV B2 B2 B1 B2 B2 B2 B1 B1 SC SC SC FW SC B1 B1 B2 B1 B1 B1 B1 PoP 12hr 50 50 10 20 70 QPF 12hr 0.08 0.14 0 0.03 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C C S S S S C C L L C Tstms S S S C C S C C C Obvis PF PF PF Heat index 82 81 81 82 82 Max heat 82 82 81 82 82 82 Date Sun 05/26/24 Mon 05/27/24 Tue 05/28/24 Wed 05/29/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 82 63 80 58 74 55 72 Temp 64 66 80 75 65 67 77 74 62 63 72 69 58 61 70 67 Dewpt 63 63 64 64 63 64 66 62 58 57 54 54 53 54 52 52 PWind dir SW SE SE S W W W W Wind char LT LT LT GN LT GN LT GN Avg clouds B1 SC SC B1 B1 B2 B2 B1 SC SC SC SC SC SC SC SC PoP 12hr 30 40 50 80 50 40 20 40 Rain shwrs C S C C C D D C C C C S S C C Tstms C S S S L S S S $$ VAZ506-232000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 437 AM EDT Thu May 23 2024 Date Thu 05/23/24 Fri 05/24/24 Sat 05/25/24 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 64 85 64 84 Temp 71 72 77 82 81 76 69 66 64 68 77 82 83 77 70 67 65 68 76 81 81 74 Dewpt 66 65 65 65 64 65 64 63 62 63 61 60 61 64 67 66 65 66 68 68 67 68 RH 84 79 67 56 56 69 84 90 93 84 58 47 47 64 90 97100 93 76 65 63 82 Wind dir SW W NW W W W W NW NW NW N NW NW S S S SE S S S S SE Wind spd 3 6 5 5 5 5 4 3 3 4 4 4 4 3 2 2 2 3 5 6 6 5 Clouds B2 B2 OV B2 B2 B2 B2 B2 B1 B1 SC SC SC SC SC B1 B1 B2 B2 B1 B1 B1 PoP 12hr 50 60 20 20 60 QPF 12hr 0.25 0.19 0 0.03 0.15 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C S S S C C L L C Tstms S S S C C S S S C C C Heat index 84 83 82 83 84 83 Max heat 84 84 82 83 84 85 Date Sun 05/26/24 Mon 05/27/24 Tue 05/28/24 Wed 05/29/24 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 64 85 66 83 61 77 58 75 Temp 67 68 83 78 68 68 79 76 66 66 75 73 61 62 74 70 Dewpt 65 66 66 66 66 67 69 67 63 60 57 57 56 57 55 55 PWind dir SW SE S S W W W W Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 B2 B2 B2 B1 B1 SC SC SC SC SC SC SC PoP 12hr 50 30 50 80 50 30 20 30 Rain shwrs C S C C C D D C C C C S S C C Tstms C S S S L S S S $$ VAZ037-232000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 437 AM EDT Thu May 23 2024 Date Thu 05/23/24 Fri 05/24/24 Sat 05/25/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 64 86 64 84 Temp 71 70 79 83 81 76 70 67 65 68 77 82 82 76 70 67 65 67 76 81 80 75 Dewpt 64 64 64 64 66 66 63 62 61 63 63 64 65 66 65 64 62 64 66 64 65 66 RH 79 81 60 53 60 71 78 84 87 84 62 55 56 71 84 90 90 90 71 56 60 74 Wind dir S SW NW SW SW W NW W W NW NE SE SE SE S W SW SW S S S SE Wind spd 2 3 4 3 4 5 3 2 2 2 3 3 4 3 2 2 2 2 4 6 5 5 Clouds SC B2 B2 B2 B2 OV B2 B2 B1 SC SC B1 B1 B1 B1 B2 B1 B2 B1 B1 B1 B1 PoP 12hr 40 60 30 40 70 QPF 12hr 0.33 0.12 0.08 0.11 0.08 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C C S S S C C S C C C C L L C Tstms C C S S C C S C C C C Obvis PF PF PF PF Heat index 84 83 83 84 83 82 Max heat 84 84 83 85 83 83 Date Sun 05/26/24 Mon 05/27/24 Tue 05/28/24 Wed 05/29/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 64 87 68 86 62 80 59 79 Temp 66 67 86 78 71 68 82 80 68 65 78 74 62 62 77 72 Dewpt 63 64 64 64 64 65 66 64 58 57 54 54 53 54 52 52 PWind dir W SE S S W W W W Wind char LT LT LT LT LT GN LT GN Avg clouds B1 SC SC B1 B2 B2 B1 B1 SC SC SC SC SC FW FW SC PoP 12hr 40 40 50 70 40 30 10 30 Rain shwrs C C C C L L C C C C C C Tstms C S S S C S S S $$ MDZ003-232000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 437 AM EDT Thu May 23 2024 Date Thu 05/23/24 Fri 05/24/24 Sat 05/25/24 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 62 83 62 82 Temp 70 70 75 80 80 74 69 65 63 66 75 80 81 76 69 66 63 67 75 79 78 73 Dewpt 66 64 65 65 63 64 63 61 59 61 58 58 59 61 62 62 61 64 65 66 66 66 RH 87 81 71 60 56 71 81 87 87 84 55 47 47 60 78 87 93 90 71 64 67 79 Wind dir S W W W W W SW N N NW N W W S SE SE E SE S S S S Wind spd 4 6 5 5 8 3 3 2 2 3 3 4 4 4 3 3 3 3 5 6 6 6 Clouds B2 OV B2 B2 B2 B2 B2 B2 B1 B1 FW FW FW FW SC SC B1 B2 B1 B1 B1 B2 PoP 12hr 60 40 5 20 50 QPF 12hr 0.07 0.04 0 0.03 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L S S C C S S C C C C C Tstms S S S S S S S C C C Obvis PF Heat index 82 81 81 81 Max heat 82 82 81 81 Date Sun 05/26/24 Mon 05/27/24 Tue 05/28/24 Wed 05/29/24 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 82 64 80 59 74 56 72 Temp 64 66 80 76 66 67 77 74 63 63 73 70 59 61 70 67 Dewpt 63 64 65 65 64 66 68 65 60 59 56 56 55 56 55 54 PWind dir SW SE SE S SW W SW W Wind char LT LT LT LT LT GN LT GN Avg clouds B1 SC SC B1 B2 B2 B2 B1 B1 SC SC SC SC SC B1 B1 PoP 12hr 40 40 50 80 50 40 20 40 Rain shwrs C S C C C D D C C C C S S C C Tstms C S S S L S S S $$ MDZ017-232000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 437 AM EDT Thu May 23 2024 Date Thu 05/23/24 Fri 05/24/24 Sat 05/25/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 67 82 66 81 Temp 73 72 78 80 79 74 71 69 68 70 75 79 78 73 70 68 66 69 74 77 76 72 Dewpt 65 65 66 66 65 66 66 65 64 66 66 65 63 63 64 65 63 66 68 68 66 66 RH 76 79 67 62 62 76 84 87 87 87 74 62 60 71 81 90 90 90 82 74 71 81 Wind dir SW SW NW NE SE S S W W W N NE E S S S S S S SE SE S Wind spd 9 9 6 6 5 4 5 4 4 5 4 5 5 4 5 4 4 4 5 8 9 8 Clouds SC B2 OV B2 B2 B2 OV B2 B2 B1 SC SC SC SC SC SC B1 B1 B2 B2 B1 B1 PoP 12hr 40 60 30 20 30 QPF 12hr 0.19 0.17 0.01 0.03 0.09 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S C L C C C S S S S S C C C Tstms S S C C S S C C C Obvis PF PF Heat index 82 Max heat 82 82 Date Sun 05/26/24 Mon 05/27/24 Tue 05/28/24 Wed 05/29/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 82 66 82 65 78 62 78 Temp 67 69 81 73 68 68 79 75 67 67 76 72 64 65 77 70 Dewpt 64 65 66 65 63 66 68 67 64 62 61 60 58 58 58 58 PWind dir S SE S S SW W SW W Wind char LT LT LT GN GN GN LT GN Avg clouds B1 B1 SC SC B1 B2 B2 B2 B1 SC SC SC SC SC SC SC PoP 12hr 50 20 50 60 60 30 20 20 Rain shwrs C C S C C L L L L C C S S S S Tstms C S S C C S $$ WVZ502-232000- Petersburg WV 38.99N 79.15W Elev. 963 ft 437 AM EDT Thu May 23 2024 Date Thu 05/23/24 Fri 05/24/24 Sat 05/25/24 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 60 84 60 84 Temp 66 68 75 79 79 72 65 63 61 64 73 79 82 74 66 63 60 64 74 80 81 73 Dewpt 63 62 63 61 61 62 61 60 58 60 62 62 63 64 62 61 58 60 63 63 63 65 RH 90 81 66 54 54 71 87 90 90 87 68 56 53 71 87 93 93 87 69 56 54 76 Wind dir S SW NW W W W SW S W NW N NW N NE SW S W SW SW SW W W Wind spd 2 3 3 3 5 3 2 2 1 1 2 2 2 2 1 1 1 1 3 4 4 3 Clouds OV OV B2 B1 B2 B2 B2 B2 B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 B2 B2 B1 PoP 12hr 40 60 30 30 70 QPF 12hr 0.09 0.03 0.02 0.02 0.08 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C L C C C C C S C S S C C C C L L C Tstms S S C C S S C S S C C C C Obvis PF PF PF Heat index 83 81 82 Max heat 81 83 81 82 Date Sun 05/26/24 Mon 05/27/24 Tue 05/28/24 Wed 05/29/24 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 58 86 64 84 57 76 54 73 Temp 63 64 84 78 66 67 82 76 62 60 74 69 58 58 71 66 Dewpt 62 63 64 65 63 65 66 63 57 56 55 54 54 54 54 53 PWind dir W S S SW W W W W Wind char LT LT LT LT LT GN LT GN Avg clouds B1 SC SC B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC PoP 12hr 30 40 50 80 40 40 20 50 Rain shwrs C S C C C D D C C C C S S C C Tstms C S S S L S S S $$ MDZ014-232000- Annapolis MD 38.99N 76.49W Elev. 7 ft 437 AM EDT Thu May 23 2024 Date Thu 05/23/24 Fri 05/24/24 Sat 05/25/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 67 83 66 80 Temp 71 72 76 79 79 75 72 70 68 70 76 80 80 76 71 69 67 69 74 77 76 73 Dewpt 66 66 67 67 67 66 66 65 64 64 63 60 60 61 64 64 64 65 67 70 68 67 RH 84 81 74 67 67 74 81 84 87 81 64 51 51 60 79 84 90 87 79 79 76 81 Wind dir S W NW S S S W W W NW NE E SE S S S SE SE SE SE SE S Wind spd 4 5 5 4 6 5 3 3 3 4 5 5 5 4 4 3 3 4 6 9 9 8 Clouds SC OV OV B2 B2 B2 OV B2 B2 B1 SC FW FW FW SC B1 B1 B2 B2 B2 B1 B2 PoP 12hr 50 60 20 20 30 QPF 12hr 0.13 0.06 0 0.01 0.14 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S C C C C S S S S C C C Tstms S S S S C S S C C C Heat index 81 81 Max heat 81 81 Coast Flood Y Y Date Sun 05/26/24 Mon 05/27/24 Tue 05/28/24 Wed 05/29/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 81 68 80 65 76 62 75 Temp 67 69 78 76 69 68 77 75 70 66 74 73 66 63 73 72 Dewpt 64 66 67 66 66 67 68 67 64 61 60 59 58 59 58 57 PWind dir SW SE S S SW W SW W Wind char LT LT LT GN LT GN LT GN Avg clouds B1 B1 SC SC B2 B2 B2 B2 B1 SC SC SC SC SC SC SC PoP 12hr 40 20 50 70 60 40 20 30 Rain shwrs C C S C C L L L L C C S S C C Tstms C S S C C S S $$