Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
400 FOUS51 KLWX 050238 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 938 PM EST Wed Dec 4 2024 VAZ054-050900- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 938 PM EST Wed Dec 4 2024 Date 12/04/24 Thu 12/05/24 Fri 12/06/24 Sat 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 37 39 28 41 27 Temp 41 41 41 39 35 35 33 31 30 29 29 28 36 39 38 33 32 30 30 29 Dewpt 21 23 25 27 12 9 9 11 13 15 16 16 16 14 12 13 14 15 14 14 RH 44 48 52 62 38 33 36 43 49 55 58 60 43 35 34 43 47 53 51 53 Wind dir SW SW SW W W W W W W W W W NW NW NW W W W W W Wind spd 16 14 16 18 23 20 17 14 14 14 13 11 14 14 13 9 9 8 8 9 Wind gust 27 25 26 34 50 39 28 27 29 Clouds OV B1 B1 B2 SC FW FW CL CL CL CL FW FW SC FW FW FW FW FW FW PoP 12hr 40 30 0 0 0 QPF 12hr 0.01 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C Snowshwrs S C S Date 12/07 Sun 12/08/24 Mon 12/09/24 Tue 12/10/24 Wed 12/11/24 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 43 31 54 41 55 50 64 48 56 Temp 41 35 33 33 52 45 43 43 53 53 52 52 62 59 54 49 55 48 Dewpt 15 18 21 22 26 32 34 37 43 44 46 48 50 49 45 41 37 34 PWind dir W SW SW SW S S S W W Wind char GN LT GN LT GN GN GN GN GN Avg clouds FW FW FW SC FW FW SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 0 0 0 30 80 60 60 60 50 Rain shwrs C L D L C C L L L C C $$ MDZ013-050900- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 938 PM EST Wed Dec 4 2024 Date 12/04/24 Thu 12/05/24 Fri 12/06/24 Sat EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 36 38 27 38 24 Temp 40 40 40 38 33 34 32 29 28 28 28 27 34 37 37 31 27 26 26 25 Dewpt 20 23 26 27 11 10 10 12 14 17 17 17 18 17 16 17 16 16 15 15 RH 44 50 57 64 39 36 39 48 55 63 63 65 51 44 42 56 63 65 62 65 Wind dir SW SW SW W W W W W W W W W NW NW NW W W W W W Wind spd 16 14 16 18 24 23 18 17 17 16 13 12 13 13 10 6 5 5 6 6 Wind gust 28 25 27 35 49 40 32 27 29 Clouds OV B2 B1 B2 SC SC FW CL CL CL CL FW FW SC SC FW FW FW FW FW PoP 12hr 50 40 0 0 0 QPF 12hr 0.02 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain S Rain shwrs C C Sleet S Snow S Snowshwrs S C S Wind Y Y Y Date 12/07 Sun 12/08/24 Mon 12/09/24 Tue 12/10/24 Wed 12/11/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 40 26 51 35 54 47 63 45 55 Temp 39 33 28 28 49 42 37 37 51 51 48 48 60 57 50 45 54 46 Dewpt 18 21 21 21 28 32 34 36 45 46 46 48 53 51 45 41 40 37 PWind dir W SW SW SW S SW S W W Wind char GN LT LT LT LT LT LT LT GN Avg clouds FW FW SC SC FW FW SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 0 0 0 30 80 60 60 60 50 Rain shwrs C L D L C C L L L C C $$ MDZ011-050900- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 938 PM EST Wed Dec 4 2024 Date 12/04/24 Thu 12/05/24 Fri 12/06/24 Sat 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 37 38 28 40 27 Temp 40 40 40 38 34 34 33 30 29 29 29 28 36 39 39 33 33 30 30 30 Dewpt 21 23 26 27 11 10 10 12 14 17 17 17 16 14 13 15 15 15 15 14 RH 46 50 57 64 38 36 38 46 53 60 60 63 43 35 34 47 47 53 53 51 Wind dir SW SW SW W W W W W W W W W NW NW NW W W W W W Wind spd 12 12 13 17 24 21 19 17 16 14 12 11 13 13 11 6 5 5 6 6 Wind gust 26 24 26 34 48 40 32 27 29 Clouds OV B2 B1 B2 SC SC FW CL CL CL CL FW FW SC SC FW FW FW FW FW PoP 12hr 50 40 0 0 0 QPF 12hr 0.02 0.01 0 0 0 Snow 12hr T 00-00 00-00 Rain S Rain shwrs C C Sleet S Snow S Snowshwrs S C S Wind Y Y Y Date 12/07 Sun 12/08/24 Mon 12/09/24 Tue 12/10/24 Wed 12/11/24 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 42 31 52 40 55 50 63 47 55 Temp 41 34 33 33 51 44 42 42 53 50 52 52 61 57 53 48 54 46 Dewpt 15 18 20 21 26 30 33 35 41 43 45 46 49 48 43 39 36 34 PWind dir W SW SW SW S SW S W W Wind char GN LT LT LT LT LT LT LT GN Avg clouds FW SC SC SC FW FW SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 0 0 0 30 80 60 60 60 50 Rain shwrs C L D L C C L L L C C $$ WVZ052-050900- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 938 PM EST Wed Dec 4 2024 Date 12/04/24 Thu 12/05/24 Fri 12/06/24 Sat EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 29 31 24 36 20 Temp 39 38 37 31 29 31 29 25 26 26 25 24 31 34 33 28 26 25 24 23 Dewpt 24 28 30 17 9 8 10 11 14 15 15 14 15 13 12 13 13 13 12 11 RH 54 67 75 56 42 37 44 55 60 62 65 65 51 41 41 53 57 60 60 59 Wind dir S S SW W W W W W W W W W NW NW NW W W W W W Wind spd 11 12 11 18 23 20 16 13 13 12 12 11 13 13 11 5 5 5 6 6 Wind gust 21 28 51 40 28 27 29 Clouds OV B1 B2 B1 SC SC FW FW FW FW FW FW SC SC FW FW FW FW FW SC PoP 12hr 50 20 0 0 0 QPF 12hr 0.02 0 0 0 0 Snow 12hr T 00-00 00-00 Rain shwrs C Sleet Snow C Snowshwrs C S S Wind Y Y Y Date 12/07 Sun 12/08/24 Mon 12/09/24 Tue 12/10/24 Wed 12/11/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 39 22 53 33 51 42 60 39 49 Temp 37 31 25 24 51 42 37 36 49 49 45 44 58 54 45 40 49 41 Dewpt 14 16 17 18 28 31 32 34 42 43 42 43 47 44 40 36 34 30 PWind dir W SW SW SW S S S W W Wind char GN LT LT LT LT LT LT LT GN Avg clouds SC FW SC SC FW FW SC B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 B1 PoP 12hr 0 0 0 40 80 50 50 50 40 Rain shwrs C D D C C C C C C C C $$ VAZ506-050900- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 938 PM EST Wed Dec 4 2024 Date 12/04/24 Thu 12/05/24 Fri 12/06/24 Sat 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 36 25 37 22 Temp 40 39 39 36 32 32 31 27 27 27 26 25 33 36 35 29 26 25 24 23 Dewpt 21 23 26 23 10 8 9 10 13 15 15 15 18 17 15 16 16 15 14 14 RH 46 52 59 59 39 36 39 48 55 60 62 65 53 45 43 58 65 65 65 68 Wind dir S S SW W W W W W W W W W NW NW NW W W W W W Wind spd 17 14 16 18 23 20 17 13 14 14 14 11 13 13 11 5 5 4 5 5 Wind gust 28 26 34 50 37 29 27 29 Clouds OV SC B1 B1 SC SC FW CL CL CL CL FW FW SC FW FW FW FW FW FW PoP 12hr 40 30 0 0 0 QPF 12hr 0.02 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C Snowshwrs C C S Wind Y Y Y Date 12/07 Sun 12/08/24 Mon 12/09/24 Tue 12/10/24 Wed 12/11/24 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 41 23 52 35 54 47 63 45 54 Temp 38 31 25 25 50 42 37 37 50 52 49 48 61 57 51 45 53 46 Dewpt 18 21 20 20 30 34 34 37 46 47 47 48 55 52 47 42 41 37 PWind dir W SW S S S S S W W Wind char LT LT LT LT GN GN GN GN GN Avg clouds FW FW SC FW FW FW SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 0 0 0 40 80 60 60 60 40 Rain shwrs C D D L C C L L C C C $$ VAZ037-050900- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 938 PM EST Wed Dec 4 2024 Date 12/04/24 Thu 12/05/24 Fri 12/06/24 Sat EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 35 38 24 38 20 Temp 39 38 39 38 32 33 31 26 26 25 25 24 32 37 36 29 26 24 23 22 Dewpt 22 25 26 24 7 5 6 7 9 9 10 10 10 9 8 9 9 10 10 10 RH 50 59 59 57 34 30 34 44 48 50 52 54 39 31 30 42 48 54 57 59 Wind dir SW S SW W W W W W W W W W NW NW NW W W W W W Wind spd 13 11 13 13 17 17 10 9 8 8 8 6 9 9 8 4 3 3 3 3 Wind gust 29 35 34 20 20 Clouds B2 SC B1 B1 FW FW CL CL CL CL CL CL FW FW CL CL CL CL FW FW PoP 12hr 30 20 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Snowshwrs S S Date 12/07 Sun 12/08/24 Mon 12/09/24 Tue 12/10/24 Wed 12/11/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 43 26 56 38 54 46 63 44 54 Temp 41 33 28 28 54 45 40 40 52 52 48 48 61 57 50 45 53 45 Dewpt 11 16 17 18 27 31 32 35 43 42 43 45 49 47 42 40 36 31 PWind dir W SW SW SW SW SW SW SW SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW SC B2 B2 B2 B2 B2 B2 B1 B2 B2 B1 B1 PoP 12hr 0 0 0 40 80 50 60 50 40 Rain shwrs C D D C C C L C C C C $$ MDZ003-050900- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 938 PM EST Wed Dec 4 2024 Date 12/04/24 Thu 12/05/24 Fri 12/06/24 Sat 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 28 30 24 35 20 Temp 37 38 38 30 29 30 29 25 25 25 25 24 31 34 33 28 25 25 23 23 Dewpt 23 28 31 17 10 9 11 12 15 17 16 15 17 16 15 15 15 15 13 13 RH 56 67 76 58 44 41 46 57 65 71 68 68 56 47 47 58 65 65 65 65 Wind dir S S SW W W W W W W W W W NW NW W W W W W W Wind spd 11 12 12 19 24 21 18 13 12 12 12 11 13 13 11 5 5 5 5 5 Wind gust 23 31 47 39 29 27 29 Clouds OV B1 OV B1 SC SC SC FW FW FW SC SC B1 B1 SC FW FW FW FW FW PoP 12hr 50 20 0 0 0 QPF 12hr 0.02 0 0 0 0 Snow 12hr T 00-00 00-00 Rain shwrs C Sleet Snow C Snowshwrs S S S Wind Y Y Y Date 12/07 Sun 12/08/24 Mon 12/09/24 Tue 12/10/24 Wed 12/11/24 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 38 23 52 35 50 43 60 41 51 Temp 36 31 26 25 49 41 37 37 48 48 46 44 58 54 46 41 50 42 Dewpt 17 19 18 19 31 33 33 35 45 45 44 44 51 48 42 37 38 33 PWind dir W SW SW S S S S W W Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC SC SC SC FW FW SC B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 PoP 12hr 0 5 0 40 80 60 50 50 40 Rain shwrs C D D L C C C C C C C $$ MDZ017-050900- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 938 PM EST Wed Dec 4 2024 Date 12/04/24 Thu 12/05/24 Fri 12/06/24 Sat EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 40 42 30 41 26 Temp 41 42 42 42 38 37 35 32 31 30 30 30 36 40 39 33 30 29 28 28 Dewpt 23 24 26 30 21 14 13 14 16 17 18 18 19 18 17 17 18 18 18 18 RH 48 48 53 62 50 38 40 47 53 58 60 60 50 41 40 51 60 63 66 66 Wind dir SW SW SW SW W W W W W W W NW NW NW NW NW NW NW W W Wind spd 21 20 20 23 26 24 20 19 19 19 17 17 14 13 13 10 10 9 9 9 Wind gust 36 36 34 37 46 40 31 29 26 25 Clouds OV OV SC B1 SC FW CL CL CL CL CL CL FW FW FW FW CL CL CL CL PoP 12hr 20 40 0 0 0 QPF 12hr 0 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S Snowshwrs S Wind Y Y Y Date 12/07 Sun 12/08/24 Mon 12/09/24 Tue 12/10/24 Wed 12/11/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 44 31 55 41 57 50 64 48 57 Temp 41 36 33 33 52 46 43 44 55 52 51 52 63 55 53 48 56 48 Dewpt 18 21 23 26 31 35 36 38 45 46 47 49 54 52 49 44 42 39 PWind dir W SW SW SW S SW S W W Wind char GN LT GN GN GN GN GN GN GN Avg clouds CL FW FW FW FW FW SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 PoP 12hr 0 0 0 30 80 70 70 70 60 Rain shwrs C L D L L L L L L L C $$ WVZ502-050900- Petersburg WV 38.99N 79.15W Elev. 963 ft 938 PM EST Wed Dec 4 2024 Date 12/04/24 Thu 12/05/24 Fri 12/06/24 Sat 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 24 26 20 32 16 Temp 41 39 37 26 25 26 25 23 22 22 21 20 25 30 31 25 22 20 19 18 Dewpt 31 31 30 14 9 8 9 10 11 11 11 11 13 13 12 13 11 11 10 9 RH 67 73 75 60 50 46 50 57 62 62 65 67 60 49 45 60 62 67 67 67 Wind dir SW SW SW W W W W W W W W W NW NW W W W W W W Wind spd 11 10 9 14 17 19 13 11 9 5 5 4 10 10 10 5 5 4 4 4 Wind gust 21 20 21 32 46 41 27 24 24 Clouds B1 B1 B2 B1 SC SC SC SC SC SC SC SC SC SC FW FW FW FW FW FW PoP 12hr 80 30 20 10 0 QPF 12hr 0.05 0 0 0 0 Snow 12hr T 00-00 00-00 Rain shwrs C Sleet Snow C Snowshwrs S L C C S Wind Y Y Y Date 12/07 Sun 12/08/24 Mon 12/09/24 Tue 12/10/24 Wed 12/11/24 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 40 23 57 36 58 45 64 38 51 Temp 37 31 26 26 54 43 38 39 56 53 47 46 62 54 44 38 50 41 Dewpt 16 17 17 21 32 34 34 39 47 45 45 45 50 46 39 36 35 31 PWind dir W SW SW SW SW SW SW W W Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC FW FW B1 B2 B2 B2 B2 B2 B1 B1 B2 B2 B1 B1 PoP 12hr 0 0 0 50 80 50 50 50 40 Rain shwrs C D L C C C C C C C C $$ MDZ014-050900- Annapolis MD 38.99N 76.49W Elev. 7 ft 938 PM EST Wed Dec 4 2024 Date 12/04/24 Thu 12/05/24 Fri 12/06/24 Sat EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 38 40 29 39 27 Temp 41 41 41 40 34 34 33 30 30 30 30 29 35 37 37 33 31 30 30 28 Dewpt 21 23 25 30 14 11 11 12 14 17 17 17 18 17 16 18 19 18 17 17 RH 44 48 52 67 43 38 39 46 51 58 58 60 49 44 42 53 61 60 58 63 Wind dir SW SW SW W W W W W W W W W NW NW NW W W W W W Wind spd 16 16 18 18 24 23 19 18 18 17 16 14 13 13 11 9 8 8 9 9 Wind gust 29 31 32 35 46 40 35 29 28 26 26 Clouds OV B2 B1 B2 SC FW FW CL CL CL CL FW FW FW SC FW FW FW FW FW PoP 12hr 40 40 0 0 0 QPF 12hr 0.01 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C Snowshwrs S S S Wind Y Y Y Date 12/07 Sun 12/08/24 Mon 12/09/24 Tue 12/10/24 Wed 12/11/24 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 39 30 49 39 52 47 59 45 51 Temp 38 35 32 32 47 44 41 41 50 49 50 49 57 55 51 46 50 46 Dewpt 18 21 24 25 29 34 36 38 43 46 46 47 50 49 45 41 38 36 PWind dir W SW SW SW S SW S SW W Wind char GN LT GN LT GN LT GN LT GN Avg clouds FW FW SC FW FW FW SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 0 0 0 30 80 70 70 70 50 Rain shwrs C L D L L L L L L C C $$