Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
817 FOUS51 KLWX 212339 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 639 PM EST Thu Nov 21 2024 VAZ054-220900- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 639 PM EST Thu Nov 21 2024 Date 11/21/24 Fri 11/22/24 Sat 11/23/24 Sun EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 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 33 44 38 55 42 Temp 42 40 36 34 34 39 40 41 41 41 40 39 39 48 54 54 50 47 45 44 42 Dewpt 36 34 30 27 26 29 35 36 36 35 35 34 34 38 40 39 38 37 36 36 36 RH 79 79 79 75 72 67 82 82 82 79 82 82 82 68 59 57 63 68 70 73 79 Wind dir W W W W W W SW W W W NW NW NW NW NW W W W W W W Wind spd 13 13 13 13 13 14 17 17 16 16 14 14 12 14 18 17 16 13 12 11 10 Clouds B2 SC FW SC SC B2 OV OV OV B1 SC SC FW SC B1 B1 SC SC SC SC SC PoP 12hr 20 70 40 0 0 QPF 12hr 0.01 0.25 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L L C Snowshwrs S Date 11/24 Mon 11/25/24 Tue 11/26/24 Wed 11/27/24 Thu 11/28/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 58 42 62 51 59 41 52 39 50 Temp 56 49 45 42 59 55 55 52 57 50 45 41 49 44 41 39 47 43 Dewpt 35 35 37 37 41 42 45 44 37 33 31 30 29 31 30 31 31 31 PWind dir W W S SW W NW NW N NW Wind char GN LT LT GN GN GN GN LT GN Avg clouds SC SC SC FW SC B1 B2 B2 B1 SC SC SC SC B1 SC B1 B1 B1 PoP 12hr 0 0 0 30 10 5 20 30 50 Rain shwrs C S S C C C $$ MDZ013-220900- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 639 PM EST Thu Nov 21 2024 Date 11/21/24 Fri 11/22/24 Sat 11/23/24 Sun EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 33 41 37 54 40 Temp 42 40 36 34 33 38 39 40 39 40 40 39 38 47 53 53 48 45 43 42 41 Dewpt 35 34 31 27 27 30 36 36 36 35 34 34 33 38 40 40 39 37 36 36 36 RH 76 79 82 75 78 73 89 85 89 82 79 82 82 71 61 61 71 73 76 79 82 Wind dir W W W W W W SW W W W NW NW NW NW W W W W W W W Wind spd 6 9 10 10 11 14 13 14 12 11 11 11 10 12 14 14 12 11 10 10 9 Wind gust 19 21 23 23 26 26 25 26 23 24 24 27 27 24 Clouds B2 B1 FW FW SC B2 OV OV B2 B1 B1 SC FW SC B1 B1 B1 SC SC SC SC PoP 12hr 20 80 40 0 0 QPF 12hr 0 0.21 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D L C S Snowshwrs C Date 11/24 Mon 11/25/24 Tue 11/26/24 Wed 11/27/24 Thu 11/28/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 56 37 60 46 58 36 50 33 47 Temp 54 46 40 37 57 51 50 49 56 47 40 37 46 41 35 34 44 39 Dewpt 38 37 36 36 42 44 44 45 39 34 30 30 31 33 30 29 32 32 PWind dir W W S SW W NW NW NW NW Wind char GN LT LT LT GN LT GN LT LT Avg clouds SC SC SC SC SC B1 B2 B2 SC SC SC SC SC B1 B1 B1 B1 B1 PoP 12hr 0 0 0 30 10 5 20 30 50 Rain shwrs S C S S C C C $$ MDZ011-220900- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 639 PM EST Thu Nov 21 2024 Date 11/21/24 Fri 11/22/24 Sat 11/23/24 Sun EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 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 34 42 37 55 44 Temp 43 41 37 35 35 38 40 41 40 41 40 40 39 48 54 54 50 49 46 45 46 Dewpt 35 34 31 28 27 31 36 37 36 36 34 34 33 37 40 39 39 38 36 36 35 RH 73 76 79 75 72 76 85 85 85 82 79 79 79 65 59 57 66 66 68 70 65 Wind dir W W W W W W SW W W NW NW NW NW NW W W W W W W W Wind spd 6 9 9 11 12 13 13 14 12 10 11 12 10 12 14 14 12 11 10 10 10 Wind gust 17 19 21 23 24 25 26 26 26 23 24 24 27 28 24 Clouds B2 B1 FW SC SC OV OV OV B2 B1 B1 SC FW SC B1 B1 B1 SC SC SC SC PoP 12hr 20 80 40 0 0 QPF 12hr 0 0.21 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D L C S Snowshwrs S Date 11/24 Mon 11/25/24 Tue 11/26/24 Wed 11/27/24 Thu 11/28/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 58 43 62 50 59 41 52 38 50 Temp 56 48 45 43 59 53 54 51 58 49 46 41 49 43 41 38 46 42 Dewpt 35 35 36 36 40 43 43 44 36 33 30 29 28 30 29 29 29 29 PWind dir W NW S SW W NW NW NW NW Wind char GN LT LT LT GN LT GN LT LT Avg clouds SC SC SC SC SC B1 B2 B2 SC SC SC SC SC B1 B1 B1 B1 B1 PoP 12hr 0 0 0 40 10 5 20 30 50 Rain shwrs S C S S C C C $$ WVZ052-220900- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 639 PM EST Thu Nov 21 2024 Date 11/21/24 Fri 11/22/24 Sat 11/23/24 Sun EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 32 43 37 53 38 Temp 39 36 33 32 33 38 40 40 41 41 40 38 39 49 52 51 46 44 44 41 38 Dewpt 33 31 27 24 25 31 35 35 36 35 35 34 34 39 40 39 37 36 36 35 34 RH 79 82 78 72 72 76 82 82 82 79 82 85 82 68 63 63 71 73 73 79 85 Wind dir W W W W W W W W NW NW NW NW NW NW W W W W W W W Wind spd 8 10 10 10 12 14 14 16 13 13 10 10 9 13 16 13 11 10 9 9 9 Wind gust 20 21 24 28 31 28 27 25 20 26 31 26 23 Clouds B2 SC FW SC B2 OV OV OV B2 B1 B1 SC SC B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 70 30 5 0 QPF 12hr 0 0.13 0.03 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L L C S Snowshwrs C Date 11/24 Mon 11/25/24 Tue 11/26/24 Wed 11/27/24 Thu 11/28/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 54 34 58 42 53 33 47 31 44 Temp 51 45 38 34 55 51 48 45 51 43 38 34 44 39 34 32 42 38 Dewpt 33 34 34 32 38 41 43 41 32 31 28 26 28 28 28 27 29 29 PWind dir W W S SW W NW NW NW NW Wind char GN LT LT LT GN LT GN LT LT Avg clouds SC SC SC SC B1 B2 B2 B2 SC SC SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 0 5 40 10 5 20 40 50 Rain shwrs C C S S C C C $$ VAZ506-220900- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 639 PM EST Thu Nov 21 2024 Date 11/21/24 Fri 11/22/24 Sat 11/23/24 Sun EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 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 31 43 37 54 39 Temp 40 37 34 32 31 39 40 40 41 41 40 38 38 48 53 52 47 44 43 42 40 Dewpt 35 32 28 26 26 30 34 35 36 35 35 34 34 38 40 39 38 37 37 36 35 RH 82 82 78 78 81 70 79 82 82 79 82 85 85 68 61 61 71 76 79 79 82 Wind dir W W W W W W W W W NW NW NW NW NW NW W W W W W W Wind spd 5 9 9 8 9 12 13 14 13 12 12 11 10 13 16 14 11 10 8 8 8 Wind gust 20 23 25 25 25 26 28 28 Clouds B2 SC FW FW SC OV OV OV B2 B1 SC SC SC SC B1 B1 SC SC SC SC SC PoP 12hr 40 70 40 0 0 QPF 12hr 0.01 0.17 0.03 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L C Snowshwrs C Date 11/24 Mon 11/25/24 Tue 11/26/24 Wed 11/27/24 Thu 11/28/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 56 34 60 46 57 36 49 33 46 Temp 54 46 39 35 57 52 51 49 56 47 40 36 46 41 36 33 43 39 Dewpt 38 37 36 34 43 44 46 46 39 35 31 29 33 33 30 30 33 32 PWind dir W W S SW W NW NW NW NW Wind char GN LT LT LT GN GN GN LT LT Avg clouds SC SC SC SC SC B1 B2 B2 B1 SC SC SC B1 B1 B1 B1 B1 B1 PoP 12hr 0 0 5 30 10 5 20 40 50 Rain shwrs S C S S S C C C $$ VAZ037-220900- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 639 PM EST Thu Nov 21 2024 Date 11/21/24 Fri 11/22/24 Sat 11/23/24 Sun EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 30 47 39 56 37 Temp 39 36 33 32 33 40 45 44 43 42 42 41 40 49 55 54 47 43 41 39 38 Dewpt 29 24 21 20 21 24 27 28 29 31 33 33 34 35 36 35 34 34 34 33 32 RH 67 61 61 61 61 52 49 53 57 65 70 73 79 58 49 48 60 70 76 79 79 Wind dir W W W W SW W W W W W W NW W W W W W W W W W Wind spd 6 6 5 5 5 9 13 14 11 9 8 8 5 10 11 10 6 5 4 3 4 Wind gust 24 Clouds SC FW FW FW FW B1 B2 B2 B2 SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 5 20 10 0 0 QPF 12hr 0 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Date 11/24 Mon 11/25/24 Tue 11/26/24 Wed 11/27/24 Thu 11/28/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 59 38 64 46 59 35 52 34 48 Temp 56 49 41 38 61 56 51 49 58 48 41 36 49 43 36 35 46 41 Dewpt 33 35 36 34 39 43 44 43 34 33 29 28 29 30 30 29 30 31 PWind dir W W SW SW W NW NW N W Wind char LT LT LT LT GN LT LT LT LT Avg clouds SC SC SC FW SC B1 B2 B2 B1 SC SC SC SC SC B1 B1 B1 B1 PoP 12hr 0 0 5 20 10 10 20 40 50 Rain shwrs S S S C C C C $$ MDZ003-220900- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 639 PM EST Thu Nov 21 2024 Date 11/21/24 Fri 11/22/24 Sat 11/23/24 Sun EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 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 33 42 35 51 39 Temp 38 35 33 33 33 36 38 40 40 40 39 37 37 46 50 51 47 44 43 41 39 Dewpt 35 32 28 26 27 34 37 37 37 36 35 34 34 41 41 40 39 37 37 36 35 RH 89 89 82 75 78 92 96 89 89 85 85 89 89 83 71 66 74 76 79 82 85 Wind dir W W W W W W W W NW NW NW NW NW NW W W W W W W W Wind spd 5 9 10 11 13 16 14 13 11 10 9 9 8 13 17 14 10 10 9 10 9 Wind gust 20 20 24 24 26 27 26 24 21 19 18 25 29 27 23 23 20 20 Clouds B2 B1 FW SC B2 OV OV OV B2 B1 B1 SC SC B1 B2 B2 B1 B1 B1 B1 SC PoP 12hr 30 90 30 5 0 QPF 12hr 0.01 0.21 0.02 0 0 Snow 12hr T T 00-00 Rain shwrs S S D L C C Snowshwrs S C D Date 11/24 Mon 11/25/24 Tue 11/26/24 Wed 11/27/24 Thu 11/28/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 53 33 56 43 53 33 46 30 43 Temp 51 44 38 34 54 50 48 46 51 43 37 33 43 38 33 32 41 37 Dewpt 36 35 34 32 40 43 44 43 35 32 29 27 30 30 28 27 30 30 PWind dir W W S SW W NW NW NW NW Wind char GN LT LT LT GN LT GN LT LT Avg clouds SC SC SC SC B1 B2 B2 B2 B1 SC SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 0 5 50 10 5 20 40 50 Rain shwrs C C S S C C C $$ MDZ017-220900- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 639 PM EST Thu Nov 21 2024 Date 11/21/24 Fri 11/22/24 Sat 11/23/24 Sun EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 35 48 39 56 42 Temp 44 42 38 36 36 41 45 45 42 41 42 41 41 49 55 55 49 46 45 44 43 Dewpt 36 35 31 28 27 29 31 34 37 37 36 36 36 37 39 40 39 37 36 36 36 RH 73 76 76 72 69 62 58 65 82 85 79 82 82 63 55 57 68 71 70 73 76 Wind dir W W W W W W W W W W NW NW NW NW W W W W W W W Wind spd 9 11 13 14 13 14 17 19 18 18 18 18 14 16 16 16 14 13 11 11 10 Wind gust 25 27 33 35 33 33 31 25 26 27 26 25 Clouds B1 SC FW SC FW SC B2 B2 OV B2 B1 SC SC SC SC SC SC SC FW SC FW PoP 12hr 10 60 40 0 0 QPF 12hr 0 0.09 0.06 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L C C Snowshwrs S Date 11/24 Mon 11/25/24 Tue 11/26/24 Wed 11/27/24 Thu 11/28/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 59 43 63 51 62 41 54 40 52 Temp 56 49 46 44 60 55 54 54 59 51 44 42 50 44 42 41 48 44 Dewpt 38 39 39 39 43 45 45 48 44 38 33 33 33 35 33 34 34 35 PWind dir W W S SW W NW NW N N Wind char GN LT GN GN GN GN GN LT GN Avg clouds FW FW FW FW FW SC B2 B2 B1 SC SC SC SC SC SC B1 B1 B1 PoP 12hr 0 0 0 20 10 10 20 30 40 Rain shwrs S S S C C C $$ WVZ502-220900- Petersburg WV 38.99N 79.15W Elev. 963 ft 639 PM EST Thu Nov 21 2024 Date 11/21/24 Fri 11/22/24 Sat 11/23/24 Sun EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 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 29 42 38 48 33 Temp 35 31 29 29 30 36 38 39 39 40 39 38 38 45 48 48 43 41 39 36 33 Dewpt 27 24 22 21 22 25 28 30 32 34 34 34 34 36 37 35 35 34 35 34 31 RH 72 75 75 72 72 64 67 70 76 79 82 85 85 70 65 60 73 76 85 92 92 Wind dir W W SW W SW W W W W W W NW W W W W W W W W W Wind spd 6 6 6 9 9 11 11 10 10 10 9 8 6 12 11 11 10 10 9 8 5 Wind gust 19 17 18 21 24 23 23 24 25 23 21 21 20 25 24 23 21 20 18 Clouds B1 B1 SC SC B2 OV B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 40 70 60 30 20 QPF 12hr 0 0.10 0.06 0.03 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L L C C C C S S S S Snowshwrs C S S S C C L S S C C C Date 11/24 Mon 11/25/24 Tue 11/26/24 Wed 11/27/24 Thu 11/28/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 56 33 63 39 54 29 49 28 47 Temp 51 43 35 34 60 55 50 44 50 42 34 31 44 38 31 29 43 38 Dewpt 35 35 31 29 43 47 47 40 33 32 27 24 29 30 28 26 31 31 PWind dir W SW SW SW W W NW NW W Wind char LT LT LT LT GN LT LT LT LT Avg clouds B1 SC SC B1 B1 B2 B2 B2 B1 SC SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 0 20 50 10 10 20 40 60 Rain shwrs S C C S S C C L Snowshwrs C $$ MDZ014-220900- Annapolis MD 38.99N 76.49W Elev. 7 ft 639 PM EST Thu Nov 21 2024 Date 11/21/24 Fri 11/22/24 Sat 11/23/24 Sun EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 35 42 37 54 44 Temp 43 41 37 36 35 39 39 41 40 41 41 39 40 48 53 53 48 48 46 45 45 Dewpt 35 35 32 28 27 29 35 37 36 36 35 34 34 37 40 40 39 38 37 36 36 RH 73 79 82 72 72 67 85 85 85 82 79 82 79 65 61 61 71 68 71 70 70 Wind dir W W W W W W SW W W W NW NW NW NW W W W W W W W Wind spd 8 9 10 12 12 14 16 16 14 13 13 13 12 12 14 16 13 12 11 11 10 Wind gust 21 24 26 25 25 27 29 29 27 28 26 23 24 26 28 27 25 Clouds B2 B1 SC SC SC B2 OV OV OV B2 B1 SC FW FW B1 B1 B1 SC SC SC SC PoP 12hr 10 80 40 0 0 QPF 12hr 0 0.19 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D L C C Snowshwrs S S Date 11/24 Mon 11/25/24 Tue 11/26/24 Wed 11/27/24 Thu 11/28/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 55 42 58 48 57 40 49 38 48 Temp 53 48 45 42 55 52 52 50 55 48 44 41 46 43 41 38 44 42 Dewpt 37 39 40 39 42 45 45 45 39 37 33 32 32 33 33 32 32 34 PWind dir W W S SW W NW NW NW NW Wind char GN LT LT LT GN GN GN LT GN Avg clouds SC SC SC FW SC B1 B2 B2 B1 SC SC SC SC SC SC B1 B1 B1 PoP 12hr 0 0 0 30 10 5 20 30 50 Rain shwrs S C S S C C C $$