Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
997 FOUS51 KLWX 182038 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 438 PM EDT Fri Apr 18 2025 VAZ054-190800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 438 PM EDT Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 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 67 86 65 77 58 Temp 80 73 70 68 67 68 76 83 86 80 77 71 69 68 70 73 75 68 64 60 59 60 Dewpt 46 49 51 52 53 54 55 56 57 57 57 56 55 52 45 43 43 43 43 44 44 44 RH 30 43 51 57 61 61 48 40 37 45 50 59 61 57 41 34 32 40 46 55 57 55 Wind dir S S S S S SW SW SW SW SW W NW NW N N N NE E E E E SE Wind spd 20 13 13 13 14 14 14 14 16 12 10 10 10 10 10 8 8 8 6 6 6 9 Wind gust 31 24 25 25 25 26 25 Clouds FW SC B1 SC B1 B2 B1 B1 B1 B1 B1 B2 B2 OV B2 B2 B2 B2 B1 B2 OV OV PoP 12hr 0 0 5 5 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 80 Max heat 80 82 85 80 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 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 77 65 82 59 79 58 81 60 81 Temp 71 69 66 67 80 74 62 61 76 71 60 60 78 72 62 62 77 73 Dewpt 47 53 55 55 51 49 47 44 42 46 49 49 48 49 52 53 52 53 PWind dir SE S W NW E S SE SE S Wind char GN GN GN LT LT LT LT LT GN Avg clouds B2 B1 B1 B2 B1 B1 B1 B1 SC SC SC SC SC SC SC B1 B1 B1 PoP 12hr 5 30 30 10 10 10 10 20 30 Rain shwrs C C C S S S S C $$ MDZ013-190800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 438 PM EDT Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 84 62 73 53 Temp 75 69 67 66 65 66 74 82 84 79 74 69 66 63 65 70 71 65 60 56 55 55 Dewpt 50 51 52 52 53 55 56 57 57 57 58 58 56 49 43 40 39 41 42 43 43 41 RH 41 53 59 61 65 68 53 43 40 47 57 68 70 60 45 33 31 41 51 62 64 59 Wind dir SE S S SW SW SW SW SW SW SW W NW NW N N N N NE E E E E Wind spd 16 11 9 9 10 10 10 12 11 8 5 5 5 6 6 6 6 4 2 2 3 4 Wind gust 26 26 24 20 20 21 23 24 23 16 Clouds FW SC SC SC B1 B2 B1 B2 B1 B1 B1 B2 B2 OV B2 B1 B2 B2 B1 B2 OV B2 PoP 12hr 0 5 5 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 82 Max heat 82 83 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 71 59 79 55 75 53 77 55 76 Temp 66 65 61 63 77 72 59 55 72 68 55 55 74 69 57 57 73 69 Dewpt 44 52 55 55 51 49 46 43 43 46 48 49 48 49 52 52 53 52 PWind dir SE S W NW E S SE SE S Wind char GN LT LT LT LT LT LT LT LT Avg clouds B2 B1 B2 B2 B1 B1 B1 B1 SC SC SC SC SC SC SC B1 B1 B1 PoP 12hr 5 40 20 5 5 5 10 20 30 Rain shwrs C C S S S S C $$ MDZ011-190800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 438 PM EDT Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 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 86 65 75 56 Temp 73 70 69 67 67 68 76 83 86 79 77 71 68 66 67 71 73 66 63 59 58 58 Dewpt 48 49 50 51 52 53 54 55 56 56 57 56 53 47 41 39 38 40 40 41 41 40 RH 41 47 51 56 59 59 46 38 36 45 50 59 59 50 39 31 28 38 43 51 53 51 Wind dir S S S S SW SW SW SW SW SW W NW NW N N N N NE NE E E E Wind spd 16 11 8 6 8 9 10 11 11 6 5 5 5 5 5 6 5 3 2 2 2 3 Wind gust 26 27 24 20 20 21 23 25 23 17 16 16 Clouds FW SC SC SC B1 B2 B1 B2 B1 B1 B1 B2 B2 B2 B2 B1 B2 B2 B2 B2 OV B2 PoP 12hr 0 5 5 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 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 74 63 82 58 78 58 80 59 79 Temp 68 67 64 66 79 72 61 60 74 69 60 59 76 70 61 61 75 70 Dewpt 43 50 54 54 48 46 45 42 41 44 47 47 46 48 50 50 49 50 PWind dir SE S W NW E SE SE SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B1 B2 B2 B1 SC B1 B1 SC SC SC SC SC SC SC B1 B1 B1 PoP 12hr 5 40 20 5 5 5 10 20 30 Rain shwrs C C S S S S C $$ WVZ052-190800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 438 PM EDT Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 85 59 72 53 Temp 80 71 67 65 63 65 73 81 84 77 72 67 63 61 63 68 71 64 60 57 55 55 Dewpt 44 46 48 50 50 51 53 55 55 53 54 55 52 48 42 41 40 42 41 42 42 44 RH 28 41 50 58 62 60 49 41 37 43 53 65 67 62 46 37 32 45 49 57 61 66 Wind dir S S S S S S SW SW W W W NW NW N N N NE E E E E SE Wind spd 17 13 11 10 9 9 10 11 11 9 6 6 8 9 6 6 6 4 3 3 5 8 Wind gust 32 27 21 21 Clouds FW SC SC B1 B2 B2 B2 B1 SC B1 B1 B2 OV B2 B2 B2 B1 B2 B2 B2 OV B2 PoP 12hr 5 10 10 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Heat index 81 Max heat 80 81 83 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 76 58 78 50 76 51 79 55 77 Temp 69 69 62 62 76 69 54 53 72 68 55 56 76 72 59 58 75 70 Dewpt 48 52 54 53 46 44 44 44 44 46 46 47 48 49 50 51 52 52 PWind dir SE SW W NW E SE SE SE S Wind char GN LT GN LT LT LT LT LT LT Avg clouds B2 B1 B2 B1 B1 SC B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 PoP 12hr 10 40 20 5 10 5 20 20 40 Rain shwrs C C S S S S S C $$ VAZ506-190800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 438 PM EDT Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 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 85 62 74 56 Temp 81 73 69 67 65 66 74 81 85 80 74 69 66 64 67 71 73 67 62 59 57 56 Dewpt 45 51 52 53 54 56 57 57 58 58 58 58 56 53 47 44 45 45 44 44 45 45 RH 28 46 55 61 68 70 55 44 40 47 57 68 70 67 49 38 37 45 52 57 64 66 Wind dir S S S S S SW SW SW SW SW W NW NW N N N N NE E E SE SE Wind spd 20 13 13 12 12 12 12 13 12 9 6 5 6 8 8 6 6 5 4 4 4 6 Wind gust 34 29 24 23 23 24 23 Clouds FW SC SC SC B1 B2 B1 B2 B1 B1 B1 B2 OV OV B2 B2 B2 B2 B2 B2 OV B2 PoP 12hr 0 5 5 5 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 81 Max heat 80 81 84 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 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 77 62 80 54 77 54 80 57 79 Temp 70 71 64 63 78 72 57 56 74 70 56 57 78 72 59 59 76 72 Dewpt 50 55 56 57 51 49 47 45 45 49 50 51 51 51 54 55 54 57 PWind dir SE S W N NE S SE SE S Wind char GN LT GN LT LT LT LT LT LT Avg clouds B2 B1 B2 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC B1 B1 B1 PoP 12hr 5 40 20 10 10 10 10 20 30 Rain shwrs C C S S S C $$ VAZ037-190800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 438 PM EDT Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 85 62 79 58 Temp 80 73 68 65 63 64 73 81 84 79 73 69 66 66 72 76 76 70 65 61 60 60 Dewpt 45 46 47 49 50 52 53 55 53 54 53 52 52 53 54 52 51 50 49 47 47 48 RH 29 38 47 56 62 65 49 41 34 42 49 55 61 63 53 43 42 49 56 60 62 64 Wind dir S S SW S S S S SW SW SW SW W NW N NE E E E E E E E Wind spd 16 12 11 10 10 10 10 11 12 10 6 4 3 3 5 5 6 5 4 3 3 4 Wind gust 35 27 23 23 20 20 23 21 23 Clouds FW FW SC SC B1 B2 SC B1 SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV B2 PoP 12hr 0 0 0 10 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Heat index 81 Max heat 80 81 83 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 62 82 54 78 55 80 58 80 Temp 74 74 65 65 79 74 59 58 74 71 58 59 77 73 61 61 77 73 Dewpt 51 50 53 53 50 47 45 46 46 47 48 49 49 51 52 53 53 54 PWind dir S SW W NW E S SE S S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B2 B1 B1 B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 PoP 12hr 5 20 30 10 10 5 20 20 40 Rain shwrs S S C S S S S C $$ MDZ003-190800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 438 PM EDT Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 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 85 58 70 53 Temp 79 70 67 64 63 65 73 80 83 76 70 66 61 59 62 68 69 64 59 56 55 55 Dewpt 46 49 50 51 52 53 56 59 58 57 58 57 53 46 41 40 39 41 40 39 40 43 RH 31 47 54 63 67 65 55 49 43 52 66 73 75 62 46 36 33 43 49 53 57 64 Wind dir S S S S S S SW SW W W NW NW NW N N N N NE E E E SE Wind spd 13 13 11 10 9 9 10 11 11 8 8 6 8 8 6 6 5 4 3 3 4 5 Wind gust 29 27 23 23 23 Clouds FW SC SC SC B2 B2 B2 B1 SC B1 B1 B2 B2 B2 B2 B2 B1 B2 B2 B2 OV B2 PoP 12hr 5 20 20 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S Heat index 81 83 Max heat 80 81 83 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 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 73 58 76 50 75 53 79 56 76 Temp 68 68 61 61 74 68 53 53 71 68 55 56 76 72 59 58 73 70 Dewpt 49 53 55 54 48 45 43 42 46 49 46 48 50 51 51 52 55 55 PWind dir SE SW W NW W SE S SE S Wind char GN LT GN LT LT LT LT LT LT Avg clouds B2 B1 B2 B1 SC SC SC SC SC SC FW SC SC SC SC B1 B1 B1 PoP 12hr 10 50 10 5 10 5 20 20 40 Rain shwrs C C S S S S C $$ MDZ017-190800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 438 PM EDT Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 83 62 72 55 Temp 71 65 64 64 63 64 72 78 80 74 72 70 66 65 67 68 68 62 58 56 56 57 Dewpt 52 52 52 53 53 55 57 58 58 58 58 58 57 56 51 47 46 46 48 47 46 46 RH 51 63 65 67 70 73 59 50 47 57 61 66 73 73 56 47 45 56 69 72 69 67 Wind dir SE S S S SW SW SW SW SW SW SW W NW N N N N E E SE E SE Wind spd 17 12 11 12 13 13 13 13 13 10 10 8 6 6 9 9 6 5 5 5 5 5 Wind gust 24 Clouds FW FW SC SC SC SC SC SC SC B1 B1 B1 B2 OV B2 B2 B2 B2 B1 B2 B2 OV PoP 12hr 0 0 0 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 Max heat 81 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 71 61 77 57 71 55 73 57 74 Temp 66 64 63 64 74 68 60 58 68 63 56 57 70 64 57 59 71 66 Dewpt 50 54 56 57 56 55 52 48 48 49 50 51 51 51 54 55 56 55 PWind dir SE S SW NW NE SE SE SE S Wind char GN GN LT LT LT LT LT LT LT Avg clouds B2 B1 B1 B1 B2 B1 B1 B1 B1 SC SC SC SC SC SC B1 B1 B1 PoP 12hr 5 30 40 20 10 10 10 20 30 Rain shwrs S C C C S S S S C $$ WVZ502-190800- Petersburg WV 38.99N 79.15W Elev. 963 ft 438 PM EDT Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 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 59 79 56 Temp 82 73 66 66 65 66 74 83 84 77 70 66 63 61 67 74 76 69 63 60 58 58 Dewpt 44 50 50 48 47 51 56 57 53 54 55 56 56 54 54 54 54 55 54 52 51 51 RH 26 44 56 52 52 58 53 41 34 45 59 70 78 78 63 50 46 61 72 75 77 77 Wind dir S S S S SW SW W W W SW W W NW N N N NE E E SE SE SE Wind spd 14 9 8 6 6 5 8 11 11 5 4 3 2 2 2 3 3 2 2 2 2 3 Wind gust 18 19 21 23 Clouds FW SC SC B1 B2 B2 B2 B1 SC B1 B1 B1 OV OV B2 B2 B2 B2 B2 B2 B2 B1 PoP 12hr 0 5 20 20 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S S S Tstms S Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 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 57 76 48 79 52 81 55 79 Temp 76 73 62 59 74 67 52 52 76 70 55 55 77 72 59 59 76 72 Dewpt 54 55 55 52 47 47 45 44 46 51 49 49 53 54 53 54 57 58 PWind dir S SW W W SE S S S S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B2 B1 SC SC SC SC SC FW SC SC SC SC B1 B1 B1 PoP 12hr 20 50 10 5 10 5 20 20 50 Rain shwrs S C C S S S S C $$ MDZ014-190800- Annapolis MD 38.99N 76.49W Elev. 7 ft 438 PM EDT Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 60 78 60 69 53 Temp 68 64 64 63 64 64 71 76 78 76 72 67 65 63 63 65 67 63 58 55 55 55 Dewpt 50 51 52 53 53 54 55 57 57 57 58 56 55 51 44 43 42 43 45 46 45 44 RH 52 63 65 70 67 70 57 52 48 52 61 68 70 65 50 45 40 48 62 72 69 66 Wind dir S S S S S SW SW SW SW SW W NW NW N N N NE NE E E E E Wind spd 16 13 11 10 11 11 11 12 12 10 8 5 5 5 8 8 6 4 3 2 3 4 Wind gust 27 24 21 24 23 Clouds FW SC SC SC B1 B2 B1 B1 B1 B1 B1 B1 B2 OV B2 B1 B2 B2 B1 B2 OV OV PoP 12hr 0 0 5 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 68 59 75 55 70 54 72 55 72 Temp 63 64 60 63 72 69 58 56 67 65 56 56 68 65 57 57 68 66 Dewpt 46 52 55 54 52 50 49 45 45 46 49 49 49 49 52 52 52 52 PWind dir SE S W NW NE S SE SE S Wind char GN LT LT LT LT LT LT LT LT Avg clouds B2 B1 B1 B2 B1 B1 B1 B1 SC SC SC SC SC SC SC B1 B1 B1 PoP 12hr 5 40 30 10 10 10 10 20 30 Rain shwrs C C C S S S C $$