Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
273 FOUS51 KLWX 181138 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 737 AM EDT Fri Oct 18 2024 VAZ054-182000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 737 AM EDT Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 71 45 73 47 74 Temp 44 58 67 71 63 56 51 47 46 61 70 72 65 58 54 50 47 60 69 71 61 Dewpt 37 36 31 32 33 35 37 38 38 40 39 40 41 43 44 43 44 48 46 46 47 RH 76 44 26 24 32 45 59 71 73 46 32 31 41 57 69 77 89 64 44 41 60 Wind dir N N N N N N N N N N N NE SE W W NW NW NW NW NW W Wind spd 9 9 10 10 8 5 5 6 6 6 3 3 3 2 3 4 2 3 3 3 2 Clouds CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW CL CL CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 48 77 52 78 53 76 56 68 Temp 51 51 73 65 56 54 75 66 58 55 73 68 61 57 67 61 Dewpt 45 45 49 51 50 51 54 55 53 52 54 54 53 51 49 46 PWind dir W NW NW S S S W NW Wind char LT LT LT LT LT LT LT GN Avg clouds CL CL CL CL CL CL FW FW FW SC SC FW SC SC SC SC PoP 12hr 0 0 0 0 0 0 10 20 Rain shwrs S $$ MDZ013-182000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 737 AM EDT Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 42 71 42 74 Temp 35 52 63 67 56 50 46 43 42 59 68 70 60 52 46 43 48 61 69 72 60 Dewpt 35 37 32 32 33 39 40 39 40 43 42 43 44 45 44 43 43 46 46 47 48 RH 100 56 31 27 42 66 79 86 93 55 39 38 55 77 93100 83 58 44 41 64 Wind dir N N N N N N N N N N NE E SW W NW NW NW NW W W W Wind spd 5 6 9 8 4 2 2 3 4 4 3 3 2 1 1 2 1 2 3 2 2 Clouds CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Frost Y Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 47 77 53 77 53 75 55 66 Temp 49 49 74 65 56 54 75 66 56 54 73 66 59 55 65 58 Dewpt 44 44 49 52 50 50 55 55 53 52 55 55 53 51 49 47 PWind dir W NW NW E S S W NW Wind char LT LT LT LT LT LT LT GN Avg clouds CL CL CL CL CL FW FW FW FW SC SC FW SC SC SC SC PoP 12hr 0 0 0 0 0 0 10 20 Rain shwrs S $$ MDZ011-182000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 737 AM EDT Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 72 47 74 47 76 Temp 44 59 68 70 60 57 54 49 47 62 70 73 65 59 56 51 52 63 70 74 63 Dewpt 36 34 31 32 33 37 38 38 38 40 39 39 41 42 42 42 44 45 43 44 46 RH 73 39 25 24 36 47 54 66 71 44 32 29 41 53 59 71 74 52 38 34 54 Wind dir N N N N N N N N N N NE E S NW NW NW NW NW W W W Wind spd 6 6 8 8 4 2 2 3 4 3 3 2 2 1 1 2 3 3 3 2 2 Clouds CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Frost Y Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 79 57 79 58 76 58 68 Temp 57 53 76 67 61 57 77 68 64 59 73 69 63 58 67 62 Dewpt 44 45 49 51 50 51 54 54 53 53 54 55 53 50 47 45 PWind dir NW NW NW E S S W NW Wind char LT LT LT LT LT LT LT GN Avg clouds CL CL CL CL CL CL FW FW FW SC SC FW SC SC SC SC PoP 12hr 0 0 0 0 0 0 10 20 Rain shwrs S $$ WVZ052-182000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 737 AM EDT Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 68 31 69 34 72 Temp 33 52 63 68 56 44 38 33 32 52 66 69 57 47 42 37 41 54 64 69 57 Dewpt 33 35 32 32 34 35 35 33 32 39 39 40 42 42 40 37 36 45 44 47 46 RH 100 52 31 26 43 70 89100100 61 37 35 57 83 93100 82 71 48 45 67 Wind dir N N N N N N NW NW NW N N E SW N N N N NW NW NW W Wind spd 4 5 8 6 3 1 1 1 3 2 2 1 1 0 0 0 0 1 3 2 2 Clouds CL CL CL CL CL CL CL FW FW CL CL CL CL CL CL FW FW CL CL CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Freeze W Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 39 74 45 75 46 75 49 64 Temp 46 41 70 59 50 45 72 61 51 47 72 65 55 50 63 57 Dewpt 42 40 47 50 47 44 52 53 49 45 53 53 51 48 47 44 PWind dir W W SW S S S W NW Wind char LT LT LT LT LT LT LT GN Avg clouds CL CL CL CL CL CL CL FW FW SC SC FW SC SC SC SC PoP 12hr 0 0 0 0 0 0 20 20 Rain shwrs S S S $$ VAZ506-182000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 737 AM EDT Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 37 71 37 72 Temp 36 54 66 69 57 47 43 38 37 57 67 70 60 49 45 40 43 58 67 69 58 Dewpt 35 38 35 33 34 39 38 37 37 43 44 45 45 45 44 40 39 46 46 47 47 RH 96 54 32 26 42 74 82 96100 59 43 41 58 86 96100 86 64 47 45 67 Wind dir N N N N N N N N N N N N NW W NW NW NW NW NW NW W Wind spd 5 8 9 8 4 2 3 4 5 4 3 3 2 1 2 2 2 3 4 3 2 Clouds CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW FW CL CL CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Frost Y Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 43 76 48 77 50 76 53 68 Temp 47 45 74 62 52 50 74 65 55 52 74 66 58 54 66 59 Dewpt 44 43 49 51 49 47 54 55 52 50 55 53 53 49 49 46 PWind dir W NW NW S S S W NW Wind char LT LT LT LT LT LT LT GN Avg clouds CL CL CL CL CL CL FW FW FW SC SC FW SC SC SC SC PoP 12hr 0 0 0 0 0 0 10 20 Rain shwrs S $$ VAZ037-182000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 737 AM EDT Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 37 71 39 74 Temp 36 55 66 68 56 47 43 39 37 58 70 68 56 50 45 42 44 61 70 70 59 Dewpt 35 38 35 34 33 32 32 32 33 39 39 41 41 42 41 39 41 46 47 49 49 RH 96 53 32 28 42 56 65 76 85 49 32 37 57 74 86 89 89 58 44 47 69 Wind dir NW N NE NE N N NW NW NW NE NE NE N NW NW NW NW NW E E W Wind spd 4 5 8 6 3 2 2 3 3 3 3 3 2 1 1 2 2 2 3 2 2 Clouds CL CL CL CL CL CL CL CL CL CL CL CL FW CL CL CL CL CL CL CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Frost Y Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 42 76 46 75 49 75 51 69 Temp 48 46 72 61 52 49 72 63 54 51 72 65 56 52 66 57 Dewpt 45 42 46 50 47 45 51 53 51 48 53 52 51 47 48 47 PWind dir W W W SW SW SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds CL CL CL CL CL CL CL FW FW SC SC FW FW SC SC FW PoP 12hr 0 0 0 0 0 0 10 10 $$ MDZ003-182000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 737 AM EDT Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 35 70 36 72 Temp 35 55 66 69 56 46 41 37 35 55 67 69 59 48 43 40 43 56 65 70 57 Dewpt 35 38 35 35 35 36 36 36 35 41 42 43 43 43 41 38 37 46 45 47 47 RH 100 53 32 28 45 68 82 96100 59 40 39 55 83 93 92 79 69 48 44 69 Wind dir N N N N NE N N N N N W NW S NW NW NW NW NW NW NW W Wind spd 3 5 8 6 4 2 2 2 2 2 2 2 2 1 1 1 2 2 2 2 2 Clouds CL CL CL CL CL CL CL FW CL CL CL CL CL CL CL CL CL CL CL CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Freeze W Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 41 75 48 76 49 75 50 65 Temp 45 43 73 61 49 48 74 65 53 50 73 65 55 51 63 56 Dewpt 43 41 50 53 49 47 54 55 51 48 55 54 51 48 48 44 PWind dir NW NW NW SW S SW W NW Wind char LT LT LT LT LT LT LT GN Avg clouds CL CL CL CL CL CL CL FW FW SC SC SC SC SC SC SC PoP 12hr 0 0 0 0 0 0 20 20 Rain shwrs S S S $$ MDZ017-182000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 737 AM EDT Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 67 49 70 49 71 Temp 46 57 63 66 60 55 52 50 51 61 67 68 61 56 53 50 54 63 67 68 60 Dewpt 43 40 35 37 39 42 42 44 46 46 46 46 46 49 49 48 50 52 49 49 49 RH 89 53 35 34 46 61 69 80 83 58 47 45 58 77 86 93 86 67 52 51 67 Wind dir N N N N N NE N N NE N N N N E SE NW NW N N N S Wind spd 10 11 14 12 8 4 4 5 9 8 8 6 5 2 2 3 3 3 5 3 3 Clouds CL CL FW CL CL CL CL CL CL CL CL CL CL CL CL FW FW CL CL CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Frost Y Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 74 55 75 56 75 57 69 Temp 53 54 72 64 58 58 73 64 58 57 73 67 61 59 67 59 Dewpt 49 49 49 49 50 53 54 54 54 54 54 53 53 51 49 47 PWind dir W NW W S S S SW NW Wind char LT LT LT LT LT LT GN GN Avg clouds CL CL CL CL CL CL CL FW FW FW SC FW FW SC SC SC PoP 12hr 0 0 0 0 0 0 5 10 $$ WVZ502-182000- Petersburg WV 38.99N 79.15W Elev. 963 ft 737 AM EDT Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 71 32 75 35 75 Temp 31 51 66 68 53 43 37 33 32 54 70 73 59 47 43 38 39 58 71 73 57 Dewpt 31 35 29 31 31 31 30 28 27 35 37 40 40 40 37 35 31 43 44 47 45 RH 100 54 25 25 43 62 75 82 81 48 30 30 49 76 79 89 73 57 38 40 64 Wind dir W N N NE N SW S S SW SE E NE S SW W W SW N N N W Wind spd 2 2 4 3 2 2 2 2 4 2 2 2 2 2 2 2 2 1 2 2 1 Clouds FW FW CL CL CL CL FW FW FW CL CL CL CL CL CL CL CL CL CL CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 38 77 43 78 46 77 46 66 Temp 44 40 74 59 47 44 76 60 51 47 74 62 51 47 63 54 Dewpt 39 36 43 47 42 39 47 51 47 44 48 49 49 44 44 43 PWind dir SW SE SW S SW SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds CL CL CL CL CL CL CL FW SC SC SC FW SC SC SC SC PoP 12hr 0 0 0 0 0 5 20 30 Rain shwrs S S C S $$ MDZ014-182000- Annapolis MD 38.99N 76.49W Elev. 7 ft 737 AM EDT Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 67 48 68 48 71 Temp 45 56 63 67 61 55 52 50 49 59 66 67 62 55 52 50 52 59 66 69 62 Dewpt 40 37 33 37 37 42 44 44 43 44 42 42 44 46 47 46 46 48 48 49 49 RH 82 49 32 33 41 61 74 80 80 57 42 40 52 72 83 86 80 67 52 49 62 Wind dir N N N N N N N N N N N N N N N NW NW NW N S SW Wind spd 9 9 10 8 4 2 3 4 6 6 5 3 1 0 0 1 2 3 3 3 3 Clouds CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW CL CL CL CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Frost Y Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 74 56 74 56 72 57 66 Temp 54 52 72 65 59 56 73 66 60 57 70 67 62 57 63 62 Dewpt 46 46 50 52 52 52 55 55 54 53 55 56 53 50 49 47 PWind dir W W NW E S S W NW Wind char LT LT LT LT LT LT LT GN Avg clouds CL CL CL CL CL FW FW FW FW SC SC FW FW SC SC SC PoP 12hr 0 0 0 0 0 0 10 20 Rain shwrs S $$