Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
855 FOUS51 KLWX 200301 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 1101 PM EDT Sat Sep 19 2026 VAZ054-200800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 1101 PM EDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 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 68 84 66 74 64 Temp 69 70 69 76 81 83 78 73 71 68 67 71 73 72 70 68 66 66 64 Dewpt 65 66 66 66 69 70 71 70 68 65 61 61 61 61 61 62 62 62 61 RH 87 87 90 71 67 65 79 90 90 90 81 71 66 68 73 81 87 87 90 Wind dir SE S S S SW SW SW SW N N N NE NE NE NE NE NE NE NE Wind spd 8 8 9 11 11 8 5 4 4 8 9 10 8 11 9 10 10 10 11 Clouds B2 OV B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 B2 OV OV OV OV OV OV PoP 12hr 10 40 60 20 50 QPF 12hr 0 0.07 0.11 0.03 0.16 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C L L C C S S C C C C C Tstms S C C S S Heat index 84 87 Max heat 84 87 Date 09/22 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 66 59 66 56 68 56 71 Temp 67 65 61 60 64 64 61 60 64 64 59 57 66 64 58 57 70 66 Dewpt 60 58 56 54 56 55 56 54 56 54 53 52 52 52 52 51 53 53 PWind dir NE NE NE NE NE N N N N Wind char GN BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC SC SC PoP 12hr 50 50 40 30 30 30 20 20 20 Rain shwrs C C C C C C C C C C C C S S S S S S Tstms S $$ MDZ013-200800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 1101 PM EDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 83 63 74 60 Temp 68 69 68 75 80 80 74 70 67 64 64 70 73 71 67 64 63 61 60 Dewpt 66 66 66 67 69 70 71 70 67 63 61 62 61 62 61 62 61 60 59 RH 93 90 93 76 69 72 90100100 97 90 76 66 73 81 93 93 97 96 Wind dir SE SE S S SW SW SW W N N N NE NE NE NE NE NE NE NE Wind spd 6 5 8 11 10 9 4 3 5 9 9 10 10 11 9 9 9 10 11 Clouds OV OV OV OV B2 B2 B2 B2 B2 B1 B2 B2 OV B2 OV OV OV OV OV PoP 12hr 10 50 60 20 50 QPF 12hr 0 0.14 0.19 0.05 0.26 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C L L S S S S S S C C C C C Tstms S C S Heat index 83 83 Max heat 83 85 Coast Flood Y Date 09/22 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 69 56 67 56 67 54 69 55 72 Temp 67 63 58 57 65 63 58 57 65 63 56 55 66 63 56 56 70 65 Dewpt 61 58 55 54 57 57 55 54 58 55 53 52 54 54 52 52 55 55 PWind dir NE NE NE NE NE N N N N Wind char GN GN BZ GN GN GN GN GN GN Avg clouds OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC PoP 12hr 60 50 40 30 30 30 30 20 20 Rain shwrs C L C C C C C C S C C C C S S S S S $$ MDZ011-200800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 1101 PM EDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 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 83 63 75 62 Temp 69 70 70 76 80 82 76 70 68 64 64 70 74 72 68 65 63 62 63 Dewpt 65 65 65 66 68 69 69 69 67 62 59 59 57 58 56 58 59 58 56 RH 87 84 84 71 67 65 79 97 97 93 84 68 55 61 65 78 87 87 78 Wind dir SE SE S S S SW SW W N N N NE NE NE NE NE NE NE NE Wind spd 8 6 8 11 10 8 4 3 5 8 9 10 10 11 8 9 9 11 11 Clouds OV OV OV OV OV B2 B2 OV B2 B1 B2 B2 B2 B2 OV OV OV OV OV PoP 12hr 10 50 60 20 50 QPF 12hr 0 0.17 0.12 0.02 0.25 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L L S S C C C C C Tstms S C S Heat index 83 85 Max heat 83 85 Date 09/22 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 58 68 58 68 56 70 56 73 Temp 68 64 59 58 65 65 59 58 66 64 58 57 68 64 58 57 71 66 Dewpt 55 52 53 51 52 51 53 51 52 50 52 50 49 49 51 50 50 50 PWind dir NE NE NE NE NE N N N N Wind char GN GN BZ GN GN GN GN GN GN Avg clouds OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC PoP 12hr 60 50 40 30 30 30 30 20 20 Rain shwrs C L C C C C C C S C C C C S S S S S $$ WVZ052-200800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 1101 PM EDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 65 81 60 69 55 Temp 68 67 67 76 79 80 74 68 67 63 61 65 67 68 65 61 60 58 56 Dewpt 63 64 64 68 68 69 69 68 66 61 57 55 56 56 57 58 58 58 56 RH 84 90 90 76 69 69 84100 97 93 87 70 68 65 75 90 93100100 Wind dir S S S S SW SW NW NW N N N N N NE NE NE NE NE NE Wind spd 8 8 8 10 10 6 3 3 8 8 8 9 9 10 5 5 6 5 6 Clouds B2 B2 B2 OV OV B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV PoP 12hr 20 60 60 40 70 QPF 12hr 0.01 0.21 0.09 0.18 0.09 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L L L C C S S C C C C L L D Tstms C C S Heat index 83 Max heat 83 Date 09/22 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 63 51 57 51 60 49 66 49 69 Temp 61 58 55 53 56 55 53 52 59 57 53 52 64 60 53 52 68 63 Dewpt 56 55 54 51 51 52 52 51 52 52 51 50 50 50 50 50 51 52 PWind dir NE NE NE NE NE N N NW N Wind char GN GN GN GN GN LT GN LT GN Avg clouds OV OV B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC B1 PoP 12hr 80 60 50 30 20 30 30 20 20 Rain shwrs D L L L C C C C S S C S S C S S S S Tstms S S $$ VAZ506-200800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 1101 PM EDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 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 67 83 62 73 60 Temp 70 68 69 77 81 79 73 69 68 63 62 69 72 70 67 65 63 62 61 Dewpt 65 65 65 67 69 71 71 69 68 63 61 62 63 64 63 63 63 62 61 RH 84 90 87 71 67 77 93100100100 97 78 73 81 87 93100100100 Wind dir S S S S SW SW S W N N N N NE NE NE NE NE N NE Wind spd 8 8 9 12 10 8 3 3 4 8 9 9 8 10 6 6 8 8 8 Clouds B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV OV OV PoP 12hr 10 40 60 30 50 QPF 12hr 0 0.11 0.11 0.02 0.12 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C L L C C C C C C C C L Tstms S C C Heat index 84 Max heat 84 86 Date 09/22 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 55 63 55 64 52 68 52 70 Temp 65 62 57 56 61 61 57 56 62 60 55 54 65 61 55 54 69 64 Dewpt 64 61 57 54 58 58 56 54 59 58 54 52 56 55 53 52 57 57 PWind dir NE NE NE NE NE N N N N Wind char GN GN GN GN GN GN GN GN GN Avg clouds OV OV B2 OV B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC B1 PoP 12hr 60 50 40 30 30 20 20 20 20 Rain shwrs L L C C C C C C C C S S S S S S S S Tstms S $$ VAZ037-200800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 1101 PM EDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 65 85 66 74 61 Temp 69 67 66 76 83 82 75 71 70 68 66 71 73 70 68 66 64 63 62 Dewpt 65 64 65 68 70 71 70 69 68 67 65 63 62 62 63 63 63 63 62 RH 87 90 97 76 65 69 84 93 93 97 97 76 68 76 84 90 97100100 Wind dir S S S S S S S SW NW N NE NE NE NE NE NE NE N NE Wind spd 3 3 4 9 8 6 4 2 2 3 6 9 8 9 4 5 5 5 5 Clouds B2 B2 B1 B2 B2 B2 B2 SC B1 B1 B1 B2 B2 OV OV OV OV OV OV PoP 12hr 10 40 20 40 60 QPF 12hr 0 0.13 0.06 0.06 0.14 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S S C C L L C C L Tstms S C S S S S Heat index 87 86 Max heat 87 90 Date 09/22 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 67 55 58 54 61 52 67 51 70 Temp 66 62 59 56 57 56 56 55 61 58 55 53 67 61 55 52 69 62 Dewpt 64 62 59 56 57 56 56 55 57 57 55 53 54 54 52 51 53 54 PWind dir NE NE NE NE N N N N N Wind char GN GN GN GN GN GN GN LT GN Avg clouds OV OV B2 OV B2 B2 B2 B2 B2 B2 B2 B2 SC SC SC SC SC SC PoP 12hr 70 70 50 50 40 20 20 10 20 Rain shwrs L L L L C C C C C C S S S S S Tstms S S $$ MDZ003-200800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 1101 PM EDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 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 80 59 71 55 Temp 67 67 66 74 79 77 72 67 64 61 60 65 69 70 66 61 60 58 56 Dewpt 64 63 64 67 69 69 68 67 64 59 56 56 57 58 58 58 57 57 56 RH 90 87 93 79 72 76 87100100 93 87 73 66 66 75 90 90 96100 Wind dir S S S S SW SW NW N N N N NE NE NE NE NE NE NE NE Wind spd 10 11 10 11 10 9 3 3 9 9 9 10 9 10 6 6 8 8 9 Clouds OV OV OV OV OV OV B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV PoP 12hr 40 70 50 30 70 QPF 12hr 0.03 0.21 0.09 0.14 0.14 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S L C L L C C S S S S C C C C L L L Tstms S C C S S Date 09/22 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 64 51 58 51 61 50 67 50 70 Temp 62 58 54 52 57 56 53 52 59 57 52 52 65 60 53 52 68 63 Dewpt 58 56 53 50 53 54 52 50 54 53 51 50 53 52 50 51 54 55 PWind dir NE NE NE NE NE N N N N Wind char GN GN GN GN GN LT GN GN GN Avg clouds OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 SC B1 PoP 12hr 70 60 40 30 20 20 30 20 20 Rain shwrs L L L L C C C C S S S S C C S S S Tstms S $$ MDZ017-200800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 1101 PM EDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 83 69 76 66 Temp 71 71 72 79 82 83 78 73 72 70 70 74 75 74 69 68 68 66 68 Dewpt 65 65 67 66 67 69 70 70 70 69 67 66 66 66 65 64 64 64 64 RH 81 81 84 64 61 63 76 90 93 97 90 76 74 76 87 87 87 93 87 Wind dir SE SE S S S S S SW W NW N N NE NE NE NE NE NE NE Wind spd 10 9 9 12 12 10 8 6 4 6 11 12 11 14 12 12 11 12 13 Clouds SC B1 B2 B2 B2 SC B2 B2 B2 B1 B2 B2 B2 B2 OV OV OV OV OV PoP 12hr 5 10 30 30 40 QPF 12hr 0 0 0.07 0.04 0.22 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C C C C C C Tstms C S S Heat index 85 87 Max heat 85 87 Date 09/22 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 74 63 71 62 70 60 69 60 71 Temp 73 68 66 65 69 67 65 65 68 66 63 61 67 65 62 61 70 66 Dewpt 64 61 60 60 61 61 60 60 61 59 58 57 57 56 55 55 56 56 PWind dir NE NE NE NE NE N N N N Wind char BZ BZ BZ BZ BZ BZ BZ GN BZ Avg clouds OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC B1 SC SC PoP 12hr 50 40 40 40 40 40 30 20 20 Rain shwrs C C C C C C C C C C C C C C S S S S Tstms S $$ WVZ502-200800- Petersburg WV 38.99N 79.15W Elev. 963 ft 1101 PM EDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 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 84 62 71 55 Temp 67 67 67 78 81 83 75 68 66 65 62 64 68 70 66 61 59 58 56 Dewpt 64 65 65 69 69 69 68 67 66 65 62 62 62 62 60 60 59 58 56 RH 90 93 93 74 67 63 79 97100100100 93 81 76 81 97100100100 Wind dir S S S SW SW SW SW W N N NE NE NE NE NE NE NE NE NE Wind spd 4 4 4 5 5 5 2 2 2 3 4 4 4 6 3 3 2 3 4 Clouds B2 B2 B2 OV OV B2 B1 B1 B2 OV OV OV OV OV OV OV OV OV OV PoP 12hr 20 70 60 60 70 QPF 12hr 0.01 0.17 0.06 0.19 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C C C L L C C L L L L L L D Tstms C C C S S S S S Heat index 84 87 Max heat 84 87 Date 09/22 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 51 57 50 60 49 68 48 70 Temp 65 60 55 51 56 55 52 50 58 56 51 50 65 61 52 49 68 61 Dewpt 64 60 55 51 56 55 52 50 57 55 51 50 56 53 50 49 55 54 PWind dir NE NE E NE NE N N NW N Wind char LT LT LT LT LT LT LT LT LT Avg clouds OV OV OV OV B2 B2 OV B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 SC PoP 12hr 80 80 60 60 40 30 20 20 20 Rain shwrs D D D L L C C L C S C C S S S S S Tstms S S $$ MDZ014-200800- Annapolis MD 38.99N 76.49W Elev. 7 ft 1101 PM EDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 82 66 73 64 Temp 70 70 72 78 82 82 78 71 71 68 67 73 73 72 69 65 64 64 64 Dewpt 65 66 66 66 69 70 71 71 69 65 62 63 62 61 61 64 62 61 60 RH 84 87 81 67 65 67 79100 93 90 84 71 68 68 76 97 93 90 87 Wind dir SE S S S S S S SW NW N N NE NE NE NE NE NE NE NE Wind spd 9 9 10 12 11 10 6 4 4 10 11 12 11 13 11 12 12 14 14 Clouds OV OV OV B2 B2 B2 OV B2 B2 B2 B2 B2 OV OV OV OV OV OV OV PoP 12hr 5 40 70 30 40 QPF 12hr 0 0.12 0.13 0.07 0.46 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C L L C C S S C C C C C C C Tstms S C C S Heat index 85 86 Max heat 85 86 Coast Flood Y Date 09/22 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 71 59 70 59 70 57 71 58 73 Temp 71 66 60 61 69 66 62 60 68 66 59 58 69 66 60 60 72 67 Dewpt 60 59 57 56 59 58 57 57 59 57 55 54 55 55 54 54 56 56 PWind dir NE NE NE NE NE N N N N Wind char BZ GN BZ BZ BZ GN BZ GN GN Avg clouds OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC SC B1 PoP 12hr 50 40 40 30 30 30 30 20 20 Rain shwrs C C C C C C C C C C C C C C S S S S $$