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Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
000 FOUS51 KLWX 250537 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 136 AM EDT Wed Apr 25 2018 VAZ054-252100- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 136 AM EDT Wed Apr 25 2018 Date Wed 04/25/18 Thu 04/26/18 Fri 04/27/18 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 65 51 69 51 64 Temp 55 57 62 64 64 60 56 54 53 55 63 67 68 62 58 55 53 54 60 63 63 59 Dewpt 53 54 54 57 56 55 52 50 46 45 44 44 43 45 45 46 48 49 50 51 52 49 RH 93 90 75 78 75 84 86 86 77 69 50 43 40 54 62 72 83 83 69 65 67 69 Wind dir N N N NW NW NW NW NW NW NW NW W W NW SE SE E E E S SW NW Wind spd 8 9 6 8 10 10 12 11 11 9 12 9 9 5 5 3 6 4 6 3 8 3 Clouds OV OV OV B2 OV B2 B1 SC FW SC SC SC SC SC B2 B2 OV OV OV B2 B1 B1 PoP 12hr 50 20 5 60 60 QPF 12hr 0.01 0 0 0.30 0.29 Snow 12hr 00-00 00-00 00-00 Rain L Rain shwrs C C C C S S S L L L L C C C Obvis PF PF Date Sat 04/28/18 Sun 04/29/18 Mon 04/30/18 Tue 05/01/18 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 69 48 63 46 69 51 78 Temp 54 55 67 61 53 51 62 57 50 51 67 63 55 59 76 71 Dewpt 48 47 45 44 41 38 35 35 34 37 38 42 43 48 50 52 PWind dir W NW NW NW NW W SW SW Wind char LT LT LT GN LT LT LT LT Avg clouds B1 B1 SC SC SC FW FW FW FW FW FW CL CL CL CL FW PoP 12hr 30 20 10 10 5 5 0 0 Rain shwrs C C S S $$ MDZ013-252100- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 136 AM EDT Wed Apr 25 2018 Date Wed 04/25/18 Thu 04/26/18 Fri 04/27/18 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 66 49 68 49 64 Temp 54 57 62 65 65 60 56 53 51 53 62 66 66 61 56 53 51 52 59 63 63 58 Dewpt 52 53 55 58 57 55 52 49 45 43 44 43 43 44 44 44 45 46 49 49 52 49 RH 93 86 78 78 75 84 86 86 80 69 52 43 43 53 64 71 80 80 69 60 67 72 Wind dir NE NE N NW NW NW NW NW NW NW NW W W W S S SE E E SE S W Wind spd 8 6 4 5 9 9 11 8 11 10 10 9 6 4 3 2 4 2 5 3 6 3 Clouds OV OV OV B2 OV B2 B1 SC FW SC SC FW SC SC B2 B2 OV OV OV B2 B2 B1 PoP 12hr 50 20 5 50 60 QPF 12hr 0.02 0 0 0.21 0.32 Snow 12hr 00-00 00-00 00-00 Rain L Rain shwrs C C C C S C C L L C C C Obvis PF PF Date Sat 04/28/18 Sun 04/29/18 Mon 04/30/18 Tue 05/01/18 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 69 46 62 44 67 49 76 Temp 52 54 67 60 51 50 61 55 48 49 65 61 53 57 74 70 Dewpt 47 46 44 42 39 36 34 33 33 35 36 39 41 46 48 50 PWind dir SW W NW NW NW W SW SW Wind char LT LT LT GN LT LT LT LT Avg clouds B1 B1 SC SC SC FW FW FW FW FW FW CL CL CL CL FW PoP 12hr 30 20 10 10 5 5 0 0 Rain shwrs C C S S $$ MDZ011-252100- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 136 AM EDT Wed Apr 25 2018 Date Wed 04/25/18 Thu 04/26/18 Fri 04/27/18 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 66 50 68 50 64 Temp 55 57 62 65 65 60 56 54 52 54 62 66 67 61 57 54 52 53 59 63 63 59 Dewpt 52 54 55 58 57 55 52 49 45 44 44 44 44 44 44 44 46 46 49 49 52 49 RH 90 90 78 78 75 84 86 83 77 69 52 45 43 53 62 69 80 77 69 60 67 69 Wind dir NE NE N NW NW NW NW NW NW NW NW W W W S S E E E SE S W Wind spd 8 6 4 5 9 9 11 8 11 9 10 9 6 4 3 2 4 2 5 3 6 3 Clouds OV OV OV B2 OV B2 B1 SC FW SC FW FW FW SC B2 B2 OV B2 OV B2 B2 B1 PoP 12hr 50 20 5 50 60 QPF 12hr 0.03 0 0 0.20 0.33 Snow 12hr 00-00 00-00 00-00 Rain L Rain shwrs C C C C S C C L L C C C Obvis PF PF Date Sat 04/28/18 Sun 04/29/18 Mon 04/30/18 Tue 05/01/18 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 50 68 47 62 45 68 50 76 Temp 53 54 66 60 52 50 61 56 49 50 66 62 54 58 74 70 Dewpt 47 46 44 42 40 37 34 33 33 35 36 40 40 46 49 51 PWind dir SW W NW NW NW W SW SW Wind char LT LT LT GN LT LT LT LT Avg clouds B1 B1 SC SC SC FW FW FW FW FW FW CL CL CL CL FW PoP 12hr 30 30 10 10 5 5 0 0 Rain shwrs C C C C $$ WVZ052-252100- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 136 AM EDT Wed Apr 25 2018 Date Wed 04/25/18 Thu 04/26/18 Fri 04/27/18 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 64 45 66 46 65 Temp 52 54 60 63 62 57 52 49 48 50 59 64 64 59 54 51 48 50 59 63 63 58 Dewpt 48 49 52 54 53 51 47 44 40 41 41 42 42 43 41 41 44 45 50 50 50 48 RH 86 83 75 72 72 80 83 83 74 71 51 45 45 55 61 68 86 83 72 62 62 69 Wind dir N S N NW NW NW NW NW NW NW NW W W NW NE NE NE E SE S W W Wind spd 5 5 6 8 11 11 10 8 9 8 10 8 5 4 3 2 4 2 6 2 6 3 Clouds OV OV OV B2 OV B2 SC SC FW SC FW FW FW SC B2 B2 OV B2 B2 B2 B2 B2 PoP 12hr 40 10 5 50 50 QPF 12hr 0 0 0 0.38 0.09 Snow 12hr 00-00 00-00 00-00 Rain C Rain shwrs C C C C S S C C C C C C C Obvis PF PF Date Sat 04/28/18 Sun 04/29/18 Mon 04/30/18 Tue 05/01/18 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 46 67 42 61 40 69 46 78 Temp 50 51 65 58 48 46 59 53 45 47 66 61 51 56 75 70 Dewpt 44 42 42 40 37 35 34 33 31 35 39 42 40 45 50 52 PWind dir SW W NW NW NW W SW SW Wind char LT LT LT GN LT LT LT LT Avg clouds B1 SC SC SC SC FW FW FW FW FW FW FW CL CL FW FW PoP 12hr 40 30 10 10 5 5 0 0 Rain shwrs C C C C $$ VAZ506-252100- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 136 AM EDT Wed Apr 25 2018 Date Wed 04/25/18 Thu 04/26/18 Fri 04/27/18 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 65 49 68 48 65 Temp 54 57 61 64 64 59 55 53 51 53 62 66 66 61 56 53 50 52 59 63 64 59 Dewpt 52 52 54 56 56 54 51 48 44 44 43 43 43 44 44 45 47 47 49 51 51 49 RH 93 83 78 75 75 83 86 83 77 71 50 43 43 53 64 74 89 83 69 65 63 69 Wind dir N N NW NW NW NW NW NW NW NW NW W W NW SE E E E E S W N Wind spd 8 6 6 9 11 10 11 8 10 9 11 8 5 4 3 2 5 2 5 2 6 3 Clouds OV OV OV B2 OV B2 SC SC FW SC SC SC SC B1 B2 B2 OV B2 OV B2 B1 B1 PoP 12hr 40 10 5 60 60 QPF 12hr 0 0 0 0.36 0.25 Snow 12hr 00-00 00-00 00-00 Rain C Rain shwrs C C C C S S L L L L C C C Obvis PF PF Date Sat 04/28/18 Sun 04/29/18 Mon 04/30/18 Tue 05/01/18 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 69 45 63 42 69 49 78 Temp 52 53 67 60 51 49 61 55 47 48 67 62 53 58 76 71 Dewpt 47 45 44 42 40 37 35 34 33 36 39 41 42 47 50 52 PWind dir W NW NW NW NW W SW SW Wind char LT LT LT GN LT LT LT LT Avg clouds B1 SC SC SC SC FW FW FW FW FW FW CL CL CL FW FW PoP 12hr 30 20 10 10 5 5 0 0 Rain shwrs C C S S $$ VAZ037-252100- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 136 AM EDT Wed Apr 25 2018 Date Wed 04/25/18 Thu 04/26/18 Fri 04/27/18 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 66 47 70 49 68 Temp 52 55 61 65 64 59 54 51 50 52 62 68 68 62 57 54 51 53 62 66 66 60 Dewpt 50 50 54 55 55 53 49 46 44 44 44 44 45 48 47 46 48 48 52 50 50 48 RH 93 83 78 70 73 80 83 83 80 74 52 42 43 60 69 74 89 83 70 56 56 64 Wind dir NE N N N N NW NW NW NW NW NW W S S E E E SE S S SW W Wind spd 6 5 4 5 8 8 5 4 5 3 3 4 4 4 3 2 5 2 4 2 6 3 Clouds OV B2 B2 B2 OV B1 SC SC SC SC SC SC B1 B2 B2 B2 OV OV B2 B2 B2 B1 PoP 12hr 50 10 10 60 50 QPF 12hr 0.06 0 0 0.59 0.06 Snow 12hr 00-00 00-00 00-00 Rain C Rain shwrs C C C C C C L L C C C C C Obvis PF PF Date Sat 04/28/18 Sun 04/29/18 Mon 04/30/18 Tue 05/01/18 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 47 71 44 66 41 71 48 80 Temp 52 53 69 61 50 49 64 57 47 48 68 63 53 58 77 72 Dewpt 44 44 43 42 39 38 35 36 34 37 40 44 42 47 50 52 PWind dir W W NW NW NW SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds B1 SC SC SC SC FW FW FW FW CL CL CL CL CL FW FW PoP 12hr 30 20 10 5 5 0 0 0 Rain shwrs C C S S $$ MDZ003-252100- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 136 AM EDT Wed Apr 25 2018 Date Wed 04/25/18 Thu 04/26/18 Fri 04/27/18 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 62 45 65 46 63 Temp 52 54 59 61 61 56 52 49 47 50 58 63 63 58 53 50 48 50 57 61 62 57 Dewpt 49 49 52 54 53 51 47 44 41 40 41 43 42 42 41 41 43 43 48 48 50 48 RH 89 83 78 78 75 83 83 83 79 68 53 48 46 55 64 71 83 77 72 62 65 72 Wind dir N N N NW NW NW NW NW NW NW NW W W W NE NE E E SE S SW SW Wind spd 8 8 6 9 12 10 10 9 10 9 11 9 6 5 3 2 4 2 6 3 5 3 Clouds OV OV OV OV OV B2 B1 SC FW SC FW FW FW SC B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 40 10 10 50 50 QPF 12hr 0 0 0 0.30 0.10 Snow 12hr 00-00 00-00 00-00 Rain L Rain shwrs C C C C S S C C C C C C C Obvis PF PF Date Sat 04/28/18 Sun 04/29/18 Mon 04/30/18 Tue 05/01/18 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 46 65 42 60 40 67 46 76 Temp 50 50 63 56 47 46 58 53 45 46 65 60 51 55 74 69 Dewpt 45 43 42 39 36 34 33 32 30 34 37 40 40 44 49 51 PWind dir SW W NW NW NW W SW SW Wind char LT LT LT GN LT LT LT LT Avg clouds B1 SC SC SC SC FW FW FW FW FW FW FW CL CL FW FW PoP 12hr 40 30 10 10 5 5 0 0 Rain shwrs C C C C $$ MDZ017-252100- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 136 AM EDT Wed Apr 25 2018 Date Wed 04/25/18 Thu 04/26/18 Fri 04/27/18 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 64 52 66 51 64 Temp 56 58 61 63 63 60 57 55 54 55 61 65 65 60 57 54 53 54 60 63 63 59 Dewpt 55 55 56 57 57 55 53 52 49 47 46 46 45 47 47 48 49 51 53 53 53 51 RH 96 90 84 81 81 84 86 90 83 74 58 50 48 62 69 80 86 90 78 70 70 75 Wind dir E E S NE NW NW NW NW NW NW NW W S S S SE SE E SE SE S W Wind spd 9 6 5 4 6 8 11 9 12 9 9 5 4 5 6 4 8 4 8 5 9 3 Clouds OV B2 B2 B2 OV B2 B1 SC SC SC SC SC SC B1 B2 B2 OV B2 B2 B2 B2 B1 PoP 12hr 60 30 5 60 60 QPF 12hr 0.06 0 0 0.20 0.13 Snow 12hr 00-00 00-00 00-00 Rain C Rain shwrs C C L L C S S L L L L C C C Obvis PF PF Coast Flood Y Y Y Date Sat 04/28/18 Sun 04/29/18 Mon 04/30/18 Tue 05/01/18 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 68 48 63 46 66 51 72 Temp 53 54 66 61 53 51 62 57 50 51 64 61 54 57 70 67 Dewpt 49 49 48 47 44 41 37 38 38 39 40 43 44 47 51 52 PWind dir SW W NW NW NW W SW SW Wind char LT LT GN GN GN LT LT LT Avg clouds B1 B1 SC SC SC FW FW FW FW FW CL CL CL CL CL FW PoP 12hr 30 20 10 10 5 5 0 0 Rain shwrs C C S S $$ WVZ502-252100- Petersburg WV 38.99N 79.15W Elev. 963 ft 136 AM EDT Wed Apr 25 2018 Date Wed 04/25/18 Thu 04/26/18 Fri 04/27/18 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 64 45 66 46 66 Temp 50 52 59 63 62 57 52 49 48 50 59 64 64 59 54 51 48 51 59 64 64 58 Dewpt 46 48 52 54 52 49 46 43 39 40 41 43 43 44 44 42 44 45 48 48 48 46 RH 86 86 78 72 70 75 80 80 71 68 51 46 46 57 69 71 86 80 67 56 56 64 Wind dir W N N NW NW NW NW NW NW W NW W S SW NE E NE E SW W W W Wind spd 2 3 4 6 10 9 6 4 5 4 4 5 5 3 2 1 3 1 3 3 6 2 Clouds OV OV B2 B2 B2 B2 B1 B1 SC SC FW SC B1 B2 B2 B2 B2 B2 B1 B1 B2 B1 PoP 12hr 40 20 10 50 50 QPF 12hr 0 0 0 0.38 0.06 Snow 12hr 00-00 00-00 00-00 Rain C Rain shwrs C C C C S C C C C C C C C C Obvis PF PF Date Sat 04/28/18 Sun 04/29/18 Mon 04/30/18 Tue 05/01/18 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 44 65 42 61 38 70 46 78 Temp 49 50 63 56 47 46 59 52 43 45 67 62 51 56 75 69 Dewpt 42 41 42 40 38 36 34 35 32 35 43 44 40 44 51 53 PWind dir W W NW NW W SW S SW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC SC SC SC FW FW FW FW FW CL CL FW FW FW PoP 12hr 30 30 10 10 5 5 0 0 Rain shwrs C C C C $$ MDZ014-252100- Annapolis MD 38.99N 76.49W Elev. 7 ft 136 AM EDT Wed Apr 25 2018 Date Wed 04/25/18 Thu 04/26/18 Fri 04/27/18 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 64 51 65 50 62 Temp 55 56 60 63 63 59 56 54 53 54 60 64 64 59 56 53 51 53 58 61 61 58 Dewpt 53 54 55 57 57 55 53 50 47 45 45 45 45 45 45 45 47 48 50 51 52 49 RH 93 93 84 81 81 87 90 86 80 71 58 50 50 60 66 74 86 83 75 70 72 72 Wind dir E NE NE NW NW NW NW NW NW NW NW W SW SW S S SE E SE S S W Wind spd 11 8 4 5 8 9 11 9 11 10 10 9 5 4 5 2 4 3 6 4 8 3 Clouds OV OV OV B2 OV B2 B1 SC FW SC SC FW SC SC B2 B2 OV OV OV B2 B2 B1 PoP 12hr 50 20 5 40 60 QPF 12hr 0.01 0 0 0.21 0.30 Snow 12hr 00-00 00-00 00-00 Rain L Rain shwrs C C C C S S S C C L L C C C Obvis PF PF Date Sat 04/28/18 Sun 04/29/18 Mon 04/30/18 Tue 05/01/18 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 68 47 61 45 66 51 74 Temp 53 54 66 60 52 50 60 55 49 50 64 61 54 58 72 68 Dewpt 48 47 46 44 41 38 36 35 34 36 37 40 42 46 49 51 PWind dir SW W NW NW NW W SW SW Wind char LT LT LT GN LT LT LT LT Avg clouds B1 B1 SC SC SC FW FW FW FW FW FW CL CL CL CL FW PoP 12hr 30 20 10 10 5 5 0 0 Rain shwrs C C S S $$
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