Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
870 FOUS51 KLWX 222337 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 737 PM EDT Fri Aug 22 2025 VAZ054-230800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 737 PM EDT Fri Aug 22 2025 Date 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 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 69 85 70 Temp 77 71 69 67 67 77 82 82 76 74 71 70 71 79 83 82 77 75 73 71 72 Dewpt 56 55 57 59 60 60 58 60 62 63 65 66 66 66 65 66 67 68 68 68 67 RH 48 57 66 75 78 56 44 47 62 69 81 87 84 64 55 58 71 79 84 90 84 Wind dir SE S S S S S S S SE S S S S S S S S S S SW NW Wind spd 5 4 4 4 4 8 10 12 10 11 10 9 8 10 11 12 10 9 8 8 9 Clouds FW CL CL CL FW FW FW SC SC SC SC SC SC B2 B2 B2 B2 B1 B1 SC SC PoP 12hr 0 0 5 30 30 QPF 12hr 0 0 0 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S Tstms S S S Heat index 82 82 85 84 Max heat 82 84 85 85 Date 08/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 82 63 79 60 77 60 79 62 81 Temp 81 75 68 66 76 71 65 64 75 69 63 63 77 71 65 65 79 72 Dewpt 58 54 53 53 50 49 51 52 48 48 51 52 49 51 54 54 53 54 PWind dir NW NW NW NW NW NW W S SW Wind char GN GN GN GN GN LT LT LT LT Avg clouds SC FW FW SC SC SC SC FW FW FW FW FW SC SC SC SC SC SC PoP 12hr 10 5 0 0 0 0 0 0 5 $$ MDZ013-230800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 737 PM EDT Fri Aug 22 2025 Date 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 83 68 84 68 Temp 75 68 65 63 64 76 81 81 74 71 69 68 70 78 82 81 77 72 70 69 70 Dewpt 55 57 58 58 61 61 61 62 64 65 65 66 67 68 68 68 69 69 69 68 69 RH 50 68 78 84 90 60 51 53 71 81 87 93 90 71 63 65 76 90 97 97 97 Wind dir SE S SW SW S S SE S S S S S S S S S S S S SW W Wind spd 3 2 3 2 2 6 10 11 9 6 4 4 5 8 10 10 8 5 4 4 5 Clouds FW CL CL CL FW FW FW SC SC SC SC B1 SC B2 B2 B2 B2 B1 B1 B1 SC PoP 12hr 0 0 5 30 40 QPF 12hr 0 0 0 0.01 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C Tstms S C S S Heat index 82 82 85 84 Max heat 82 83 85 85 Coast Flood W W W W W W W W W W W W W Date 08/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 62 78 58 78 58 79 61 81 Temp 81 73 66 64 76 70 63 61 75 69 61 61 77 71 63 64 79 72 Dewpt 62 57 54 54 53 53 52 53 50 52 52 52 51 53 54 54 55 56 PWind dir NW NW NW NW NW NW SW SW SW Wind char GN LT LT LT LT LT LT LT LT Avg clouds SC FW FW SC SC SC SC FW FW SC FW FW SC SC SC SC SC SC PoP 12hr 10 5 0 0 0 0 0 0 5 $$ MDZ011-230800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 737 PM EDT Fri Aug 22 2025 Date 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 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 69 87 73 88 73 Temp 77 74 71 69 69 81 85 85 79 77 75 73 73 82 86 86 80 79 75 75 76 Dewpt 54 57 57 58 59 59 58 58 60 64 65 65 65 65 65 65 66 67 68 68 66 RH 45 55 61 68 70 47 40 40 52 64 71 76 76 56 50 50 62 67 79 79 71 Wind dir SE S S SW S S SE S S S S S S S S S S S S SW W Wind spd 3 2 2 2 2 6 11 12 10 9 6 5 5 8 10 11 9 5 4 4 5 Clouds FW CL CL CL FW FW FW SC SC SC SC SC SC B2 OV OV B2 B2 B1 B1 SC PoP 12hr 0 0 5 30 50 QPF 12hr 0 0 0 0 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C Tstms S C C S Heat index 81 84 88 88 82 Max heat 84 85 88 89 Coast Flood Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date 08/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 87 66 82 63 81 63 83 66 84 Temp 84 76 71 69 79 72 68 66 78 71 66 67 80 73 69 69 82 75 Dewpt 59 54 53 52 50 50 51 51 48 49 51 51 49 51 53 54 53 54 PWind dir NW NW NW NW NW NW SW SW SW Wind char GN LT GN LT LT LT LT LT LT Avg clouds SC SC FW FW SC SC SC FW FW SC FW FW SC SC SC SC SC SC PoP 12hr 10 5 0 0 0 0 0 0 5 $$ WVZ052-230800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 737 PM EDT Fri Aug 22 2025 Date 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 59 84 65 82 63 Temp 74 66 63 61 63 75 81 83 77 71 69 67 68 75 80 79 73 69 66 65 66 Dewpt 59 57 56 55 56 61 62 62 61 61 62 62 63 66 67 67 67 67 65 63 63 RH 59 73 78 81 78 62 53 49 58 71 78 84 84 74 65 67 81 93 97 93 90 Wind dir SE S S S S S S S S S S S S S S S S S SW W NW Wind spd 3 4 3 3 4 9 11 13 10 8 6 5 5 8 8 9 6 4 4 5 6 Clouds FW CL FW SC SC SC SC SC SC SC B1 B1 B2 B2 B2 OV B2 B1 SC SC SC PoP 12hr 0 5 30 60 30 QPF 12hr 0 0 0 0.08 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L L C C Tstms S C C C Heat index 82 84 82 Max heat 82 84 82 82 Date 08/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 55 75 52 74 51 77 54 79 Temp 77 69 59 59 73 65 56 56 72 65 54 55 75 68 58 58 76 69 Dewpt 55 51 50 51 49 49 49 49 48 48 48 49 48 50 51 52 53 54 PWind dir NW W NW NW NW W W SW W Wind char GN LT GN LT LT LT LT LT LT Avg clouds FW FW FW FW FW SC FW FW FW SC FW FW FW SC SC SC SC SC PoP 12hr 5 0 5 0 0 0 0 0 5 $$ VAZ506-230800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 737 PM EDT Fri Aug 22 2025 Date 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 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 61 84 66 85 66 Temp 74 68 64 62 64 75 82 82 76 71 68 67 69 77 82 81 75 71 69 68 68 Dewpt 58 56 56 57 60 64 64 63 63 64 65 64 66 70 69 69 70 69 69 68 67 RH 57 65 75 84 87 69 55 53 64 79 90 90 90 79 65 67 84 93100100 97 Wind dir SE S S S S S S S SE S S S S S S S S S S W NW Wind spd 4 4 4 4 5 8 10 11 9 9 6 5 6 8 9 9 8 5 4 6 8 Clouds FW FW CL FW FW SC FW SC SC SC SC SC B1 B2 B2 B2 B2 B2 B1 SC SC PoP 12hr 0 0 10 40 30 QPF 12hr 0 0 0 0.03 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C Tstms S S S Heat index 83 83 85 84 Max heat 83 85 85 85 Date 08/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 81 59 77 55 76 55 79 57 81 Temp 79 71 63 61 75 68 60 58 73 66 58 58 76 68 60 59 78 71 Dewpt 61 56 52 54 54 52 51 52 52 51 51 52 53 53 53 54 57 56 PWind dir NW NW NW NW NW NW W S W Wind char GN LT GN LT LT LT LT LT LT Avg clouds SC FW FW FW SC SC SC FW FW FW FW FW SC SC SC SC SC SC PoP 12hr 10 0 0 0 0 0 0 0 5 $$ VAZ037-230800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 737 PM EDT Fri Aug 22 2025 Date 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 83 64 83 64 Temp 76 69 68 65 65 76 81 81 76 69 66 64 66 76 80 79 74 69 66 66 66 Dewpt 64 62 59 58 59 62 62 62 62 62 62 61 63 65 65 66 67 67 66 64 64 RH 66 78 73 78 81 62 53 53 62 78 87 90 90 69 60 64 79 93100 93 93 Wind dir E SE SE S S S S S S S S S S S S S S SW W W NW Wind spd 3 2 2 2 2 6 8 9 5 4 2 2 2 6 8 8 5 4 4 4 5 Clouds SC B2 B1 B1 SC SC SC SC SC SC SC SC B1 B2 B2 B2 B2 B1 SC SC SC PoP 12hr 0 0 10 50 20 QPF 12hr 0 0 0 0.03 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S S Tstms S C S S Heat index 82 82 82 Max heat 82 83 82 82 Date 08/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 56 77 53 75 53 77 55 79 Temp 79 71 60 59 74 68 58 56 73 66 57 57 75 68 59 59 76 69 Dewpt 56 53 52 51 49 50 49 49 47 49 50 50 49 51 52 53 53 55 PWind dir NW NW NW NW N NW SW SW SW Wind char GN LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC SC SC FW FW SC FW FW FW SC FW SC SC SC PoP 12hr 10 0 0 0 0 0 0 0 5 $$ MDZ003-230800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 737 PM EDT Fri Aug 22 2025 Date 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 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 60 85 66 83 64 Temp 76 66 64 62 64 75 83 83 77 71 69 67 68 76 79 79 73 69 67 65 66 Dewpt 57 57 54 53 57 63 65 64 62 61 63 63 65 68 69 69 68 67 66 65 64 RH 52 73 70 72 78 66 55 53 60 71 81 87 90 76 72 72 84 93 97100 93 Wind dir SE S S S S S S S S S S S S S S S S S S W NW Wind spd 4 4 5 5 5 9 12 13 10 10 9 6 6 8 9 9 6 4 4 4 5 Clouds FW CL FW SC SC B1 SC FW SC SC B1 B1 B2 B2 B2 B2 B2 B1 B1 SC SC PoP 12hr 0 5 40 60 50 QPF 12hr 0 0 0.02 0.09 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L L C C Tstms S S C C C Heat index 85 84 Max heat 85 85 83 Date 08/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 79 55 76 53 75 52 79 55 81 Temp 77 69 59 59 73 66 56 56 72 65 56 56 75 68 59 59 77 70 Dewpt 58 53 52 53 52 50 50 51 50 50 50 50 51 51 51 52 55 55 PWind dir NW NW W NW NW W W S SW Wind char GN LT GN LT LT LT LT LT LT Avg clouds FW FW FW FW FW SC FW CL FW SC FW FW FW SC FW FW SC SC PoP 12hr 5 0 5 0 0 0 0 0 5 $$ MDZ017-230800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 737 PM EDT Fri Aug 22 2025 Date 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 65 81 70 83 70 Temp 74 70 69 66 69 76 79 80 76 73 74 71 74 79 81 80 76 74 72 71 74 Dewpt 57 59 59 60 64 63 63 64 65 67 67 66 69 68 69 69 70 70 70 70 71 RH 55 68 70 81 84 64 58 58 69 81 79 84 84 69 67 69 82 87 93 97 90 Wind dir E SE S S S SE SE SE SE S S S S S SE SE S S S SW W Wind spd 3 9 6 4 4 8 11 12 11 10 8 5 5 9 11 13 10 9 6 6 8 Clouds CL CL CL CL CL FW FW SC SC SC SC SC SC B1 B2 B2 SC SC SC SC SC PoP 12hr 0 0 0 10 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S Heat index 82 84 83 Max heat 82 84 84 Coast Flood Y Y Y Y Y Y Y Y Date 08/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 65 80 63 78 62 79 64 81 Temp 81 76 69 69 77 72 67 66 75 70 64 66 76 70 67 68 78 72 Dewpt 67 62 57 58 55 56 56 56 53 53 55 57 54 56 58 59 57 59 PWind dir NW NW NW NW N N SW SW SW Wind char GN LT LT LT LT LT LT LT LT Avg clouds SC SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW PoP 12hr 20 5 0 0 0 0 0 0 5 Rain shwrs S S $$ WVZ502-230800- Petersburg WV 38.99N 79.15W Elev. 963 ft 737 PM EDT Fri Aug 22 2025 Date 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 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 87 64 84 59 Temp 75 68 66 63 64 78 84 84 76 69 66 64 65 76 81 79 72 66 63 60 60 Dewpt 67 64 62 60 62 67 67 67 66 65 64 63 64 69 68 68 68 66 63 60 59 RH 76 87 87 90 93 69 57 57 71 87 93 97 97 79 65 69 87100100100 96 Wind dir E S S S S S S S S S S S S SW SW SW SW SW W W W Wind spd 3 3 2 2 2 5 6 8 6 4 4 3 2 3 4 5 4 3 3 3 3 Clouds B1 B2 B1 SC FW SC SC SC B1 SC B1 B1 B2 B2 B2 B2 B1 B1 SC SC SC PoP 12hr 10 30 50 70 30 QPF 12hr 0 0.02 0.03 0.25 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C L L C C Tstms S S S S C C S Obvis PF Heat index 87 87 84 Max heat 87 89 84 84 Date 08/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 78 51 74 48 74 48 78 51 80 Temp 75 65 55 54 71 63 51 51 71 62 51 50 75 65 54 54 76 67 Dewpt 54 52 49 49 49 50 48 46 48 50 47 46 49 52 48 49 55 56 PWind dir W W W W NW W W W W Wind char GN LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC FW FW FW FW FW FW FW FW FW SC SC SC SC SC PoP 12hr 5 0 5 0 0 0 0 0 10 $$ MDZ014-230800- Annapolis MD 38.99N 76.49W Elev. 7 ft 737 PM EDT Fri Aug 22 2025 Date 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 66 80 70 81 70 Temp 76 72 70 68 68 76 78 80 77 74 74 72 72 77 79 79 77 74 72 71 72 Dewpt 58 60 60 60 61 62 62 62 64 67 67 67 67 68 68 67 68 70 70 69 69 RH 54 66 71 76 78 62 58 54 64 79 79 84 84 74 69 67 74 87 93 93 90 Wind dir SE S S SW S S S S S S S S S S S S S S S SW W Wind spd 3 8 5 4 3 9 11 13 11 11 8 6 6 10 12 13 10 9 6 6 6 Clouds CL CL CL CL FW FW FW FW SC SC SC SC SC B1 B2 B2 B1 B2 B1 B1 SC PoP 12hr 0 0 5 20 40 QPF 12hr 0 0 0 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C S Tstms S S S Heat index 81 Max heat 81 Coast Flood W W W W W W W W W W W W W Date 08/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 64 77 61 75 61 77 63 77 Temp 79 76 69 67 74 72 65 64 73 71 64 64 74 72 66 66 76 73 Dewpt 63 58 57 56 52 53 54 54 51 52 55 55 52 54 57 57 55 57 PWind dir NW NW NW NW N NW SW SW S Wind char GN LT GN LT LT LT LT LT LT Avg clouds SC FW FW SC SC SC SC FW FW FW FW FW FW SC SC SC SC SC PoP 12hr 20 5 0 0 0 0 0 0 5 Rain shwrs S $$