421  
FOUS51 KLWX 231433  
PFMLWX  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1033 AM EDT THU MAR 23 2017  
 
VAZ054-232100-  
REAGAN NATIONAL AIRPORT-ARLINGTON VA  
38.86N 77.03W ELEV. 66 FT  
1033 AM EDT THU MAR 23 2017  
 
DATE THU 03/23/17 FRI 03/24/17 SAT 03/25/17  
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 48 35 61 52 73  
TEMP 40 46 47 42 37 35 37 42 48 56 61 58 56 54 52 53 62 71 73 66  
DEWPT 10 10 11 17 19 21 23 25 29 33 36 40 43 45 46 47 50 52 51 52  
RH 28 23 23 36 48 56 56 50 47 42 39 51 62 71 80 80 65 51 46 61  
WIND DIR N S S SE S S S S S S SW SW SW SW SW SW SW SW S S  
WIND SPD 3 3 5 5 5 6 8 9 11 13 14 10 9 6 5 4 8 5 8 3  
CLOUDS CL FW FW SC FW SC FW B1 OV B1 B1 B1 B2 B1 B2 B2 B2 B2 B2 B2  
POP 12HR 0 5 20 5 5  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN S S  
 
DATE SUN 03/26/17 MON 03/27/17 TUE 03/28/17 WED 03/29/17  
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 55 65 53 72 52 67 50 64  
TEMP 58 56 64 60 56 56 70 64 57 54 65 60 54 52 62 55  
DEWPT 52 50 52 52 53 54 55 55 53 51 50 50 47 47 44 42  
PWIND DIR SE SE SE SW NE SE N NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 B2 B2 OV B2 B2 B1 B1 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 10 50 70 40 20 40 30 10  
RAIN SHWRS C C L L C C S S C C C C  
 

 
MDZ013-232100-  
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD  
39.19N 76.67W ELEV. 154 FT  
1033 AM EDT THU MAR 23 2017  
 
DATE THU 03/23/17 FRI 03/24/17 SAT 03/25/17  
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 46 28 58 49 72  
TEMP 38 44 45 37 30 28 30 35 42 51 58 54 52 50 50 50 60 70 71 63  
DEWPT 8 9 10 16 19 21 22 24 28 31 35 38 41 44 44 45 49 51 51 51  
RH 28 23 23 42 63 75 72 64 57 46 42 54 66 80 80 83 67 51 49 65  
WIND DIR N SW S S S S S S S S SW SW SW SW SW SW SW SW S S  
WIND SPD 4 3 5 4 4 6 6 8 11 12 12 8 8 6 4 4 8 5 6 4  
CLOUDS CL CL FW SC FW SC SC B2 OV B2 B1 B1 B2 B1 B2 B2 OV B2 B2 B2  
POP 12HR 0 5 40 5 10  
QPF 12HR 0 0 0.01 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C  
 
DATE SUN 03/26/17 MON 03/27/17 TUE 03/28/17 WED 03/29/17  
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 63 50 69 49 65 47 62  
TEMP 54 52 61 58 53 53 67 61 54 51 63 58 52 49 60 53  
DEWPT 50 48 51 50 51 51 54 53 50 48 49 48 45 44 42 40  
PWIND DIR SE SE SE W NE E NE NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 B2 B2 OV OV B2 B1 B1 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 10 50 70 40 20 40 30 10  
RAIN SHWRS C C L L C C S S C C C C  
 

 
MDZ011-232100-  
BALTIMORE INNER HARBOR-BALTIMORE CITY MD  
39.28N 76.61W ELEV. 20 FT  
1033 AM EDT THU MAR 23 2017  
 
DATE THU 03/23/17 FRI 03/24/17 SAT 03/25/17  
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 46 35 58 51 71  
TEMP 40 45 45 41 37 35 37 41 46 52 58 55 52 52 51 52 61 69 70 65  
DEWPT 7 9 11 16 19 21 23 24 28 31 36 39 42 43 44 45 48 51 52 52  
RH 25 22 25 36 48 56 56 50 49 44 44 55 69 71 77 77 62 53 53 63  
WIND DIR N SW S S S S S S S S SW S SW SW SW SW SW SW S SE  
WIND SPD 4 3 5 4 4 5 6 8 10 11 12 8 8 5 4 4 8 5 6 3  
CLOUDS CL CL FW FW FW SC SC B2 OV B2 B1 B1 B2 B1 B2 B2 OV B2 B2 OV  
POP 12HR 0 5 40 5 10  
QPF 12HR 0 0 0.02 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C  
 
DATE SUN 03/26/17 MON 03/27/17 TUE 03/28/17 WED 03/29/17  
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 55 61 51 69 50 64 47 62  
TEMP 57 56 60 57 54 54 67 62 55 52 62 57 51 49 60 53  
DEWPT 50 47 50 50 50 51 54 53 50 48 49 48 45 44 42 39  
PWIND DIR SE SE SE W NE E NE NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 B2 B2 OV OV B2 B1 B1 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 10 50 80 40 20 40 30 10  
RAIN SHWRS C C D D C C S S C C C C  
 

 
WVZ052-232100-  
MARTINSBURG AIRPORT-BERKELEY WV  
39.41N 77.98W ELEV. 558 FT  
1033 AM EDT THU MAR 23 2017  
 
DATE THU 03/23/17 FRI 03/24/17 SAT 03/25/17  
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 48 28 62 47 72  
TEMP 36 44 47 38 31 28 30 36 44 55 62 58 53 49 47 49 60 70 72 65  
DEWPT 7 9 11 12 15 18 20 25 30 37 40 42 42 44 42 44 49 52 51 51  
RH 29 23 23 34 51 66 66 64 57 51 44 55 66 83 83 83 67 53 48 60  
WIND DIR SE S S SE SE S S S S S SW SW SW SW SW SW SW SW S SE  
WIND SPD 2 4 6 5 4 5 5 6 6 11 11 8 5 3 4 2 4 3 5 3  
CLOUDS CL FW FW SC SC SC B1 OV OV B1 B1 B1 B2 B2 OV B2 OV OV OV OV  
POP 12HR 0 40 40 10 20  
QPF 12HR 0 0 0.04 0 0  
SNOW 12HR 00-00 00-00 00-00  
FRZG RAIN C C  
RAIN C C C C  
RAIN SHWRS S S  
 
DATE SUN 03/26/17 MON 03/27/17 TUE 03/28/17 WED 03/29/17  
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 63 48 70 48 67 46 61  
TEMP 53 51 61 57 52 51 67 61 54 51 65 59 51 48 59 52  
DEWPT 50 47 51 51 50 48 52 50 47 47 49 49 45 43 41 38  
PWIND DIR SE SE S W NE SE NW NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 B2 OV OV OV B2 B1 B1 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 30 60 80 30 20 50 30 10  
RAIN SHWRS C L L D D C C S S C C C C  
 

 
VAZ506-232100-  
WASHINGTON DULLES AIRPORT-LOUDOUN VA  
38.96N 77.45W ELEV. 321 FT  
1033 AM EDT THU MAR 23 2017  
 
DATE THU 03/23/17 FRI 03/24/17 SAT 03/25/17  
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 48 29 60 49 73  
TEMP 37 44 47 39 32 29 30 35 43 53 60 56 52 50 50 50 59 69 73 64  
DEWPT 9 10 11 14 18 20 21 24 29 34 37 39 42 45 45 46 49 51 51 51  
RH 31 24 23 35 56 69 69 64 57 48 42 53 69 83 83 86 69 53 46 63  
WIND DIR NE S S SE SE S S S S S S S SW SW SW SW SW SW S S  
WIND SPD 3 3 5 5 5 6 8 9 10 13 13 10 8 5 5 3 6 4 8 3  
CLOUDS CL FW FW SC FW SC SC B2 OV B1 B1 B1 B2 B1 B2 B2 B2 B2 B2 B2  
POP 12HR 0 10 20 5 5  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN S S  
 
DATE SUN 03/26/17 MON 03/27/17 TUE 03/28/17 WED 03/29/17  
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 65 52 72 51 67 48 63  
TEMP 54 53 63 60 55 55 70 64 56 53 65 60 53 50 61 54  
DEWPT 51 50 52 51 53 53 54 53 51 50 50 50 47 45 43 41  
PWIND DIR SE SE S W NE E N NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 B2 OV OV B2 B2 B1 B1 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 10 50 70 40 20 50 30 10  
RAIN SHWRS C C L L C C S S C C C C  
 

 
VAZ037-232100-  
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA  
38.14N 78.45W ELEV. 640 FT  
1033 AM EDT THU MAR 23 2017  
 
DATE THU 03/23/17 FRI 03/24/17 SAT 03/25/17  
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 50 29 64 48 73  
TEMP 40 47 49 39 32 29 31 37 46 57 64 60 55 52 49 49 61 71 73 66  
DEWPT 5 9 11 15 17 19 22 25 28 34 37 41 42 43 43 44 47 49 48 49  
RH 23 21 21 37 53 66 69 61 49 42 37 49 61 71 80 83 60 46 41 54  
WIND DIR E S S S S S S S S S SW S SW SW SW SW SW SW S S  
WIND SPD 4 4 6 5 5 5 6 8 10 13 14 9 6 4 4 4 8 6 9 4  
CLOUDS CL FW FW FW FW SC SC B2 B2 B1 B1 SC SC B1 B2 B2 B1 B2 B1 B2  
POP 12HR 0 5 5 5 5  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE SUN 03/26/17 MON 03/27/17 TUE 03/28/17 WED 03/29/17  
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 67 52 73 51 72 49 68  
TEMP 55 53 65 61 56 55 70 64 57 54 69 63 55 52 66 57  
DEWPT 50 50 52 54 52 51 52 51 50 49 50 52 47 46 43 41  
PWIND DIR S S S SW W SE W NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B1 B2 B2 B2 B2 B2 B1 B1 B1 B2 B2 B2 B1 SC SC SC  
POP 12HR 20 60 70 30 20 50 30 20  
RAIN SHWRS S L L L L C C S S C C C C S S  
 

 
MDZ003-232100-  
HAGERSTOWN AIRPORT-WASHINGTON MD  
39.71N 77.73W ELEV. 705 FT  
1033 AM EDT THU MAR 23 2017  
 
DATE THU 03/23/17 FRI 03/24/17 SAT 03/25/17  
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 47 29 59 48 71  
TEMP 35 43 46 38 31 29 31 36 43 52 59 55 52 50 48 50 60 68 71 62  
DEWPT 7 9 10 11 14 18 20 24 28 36 40 41 43 44 42 45 49 52 52 50  
RH 30 24 23 32 49 63 63 61 55 54 49 59 71 80 80 83 67 57 51 65  
WIND DIR W S S SE SE S S S S S SW SW SW SW SW SW SW SW S SE  
WIND SPD 2 3 5 5 6 6 8 8 9 10 12 8 6 4 4 3 5 4 5 3  
CLOUDS CL FW FW FW SC SC B1 OV OV B1 B2 B1 B2 B2 OV OV OV OV OV OV  
POP 12HR 0 40 50 10 20  
QPF 12HR 0 0 0.06 0 0  
SNOW 12HR 00-00 00-00 00-00  
FRZG RAIN C C  
RAIN C C C C  
RAIN SHWRS S S S S S  
 
DATE SUN 03/26/17 MON 03/27/17 TUE 03/28/17 WED 03/29/17  
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 61 48 68 48 64 46 60  
TEMP 50 50 59 56 51 51 66 60 53 50 62 57 51 48 58 51  
DEWPT 50 47 50 49 49 47 51 50 47 47 49 48 45 42 40 37  
PWIND DIR SE SE SE W N SE W NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS OV B2 OV OV OV B2 B2 B1 B1 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 30 60 80 30 20 50 30 10  
RAIN SHWRS S C L L D D C C S S C C C C  
 

 
MDZ017-232100-  
PATUXENT RIVER NAS MD  
38.29N 76.41W ELEV. 39 FT  
1033 AM EDT THU MAR 23 2017  
 
DATE THU 03/23/17 FRI 03/24/17 SAT 03/25/17  
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 43 32 58 50 66  
TEMP 38 42 42 37 33 32 34 39 45 53 58 52 54 52 50 51 58 65 66 59  
DEWPT 11 13 15 17 21 25 27 28 30 35 38 41 43 45 46 46 50 51 50 49  
RH 32 30 33 44 61 75 75 64 55 50 47 66 66 77 86 83 75 60 56 69  
WIND DIR N NE SE SE S S S S S S S S SW SW SW SW SW SW S S  
WIND SPD 6 4 4 5 6 9 10 10 13 13 13 11 11 10 9 8 11 9 10 6  
CLOUDS CL CL FW FW FW FW FW SC B1 B1 B1 B1 B1 B1 B2 B1 B1 B1 B1 B2  
POP 12HR 0 0 10 5 5  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE SUN 03/26/17 MON 03/27/17 TUE 03/28/17 WED 03/29/17  
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 63 52 66 50 63 48 61  
TEMP 52 52 61 59 55 54 64 60 54 52 61 57 52 50 59 54  
DEWPT 50 49 52 50 52 53 54 52 51 49 50 50 47 46 44 42  
PWIND DIR S SE S S SE SE N NW  
WIND CHAR LT GN GN LT LT LT LT GN  
AVG CLOUDS B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B2 B2 B2 B1 B1 SC  
POP 12HR 5 40 60 50 20 40 30 10  
RAIN SHWRS C C L L C C S S C C C C  
 

 
WVZ502-232100-  
PETERSBURG WV  
38.99N 79.15W ELEV. 963 FT  
1033 AM EDT THU MAR 23 2017  
 
DATE THU 03/23/17 FRI 03/24/17 SAT 03/25/17  
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 51 32 70 50 71  
TEMP 35 46 50 41 34 32 35 41 51 62 69 61 54 52 51 51 60 70 71 63  
DEWPT 7 11 13 17 20 22 25 30 38 46 48 47 45 46 44 45 49 50 51 50  
RH 30 24 22 37 56 66 66 65 61 56 47 60 71 80 77 80 67 49 49 62  
WIND DIR SE SE S S S S S S SW W SW SW SW SW SW SW SW SW S SE  
WIND SPD 2 4 6 5 4 5 5 5 6 10 10 5 5 3 3 2 4 2 5 2  
CLOUDS FW FW FW FW SC SC B2 OV B2 B1 B1 B1 B2 B2 OV B2 OV OV OV B2  
POP 12HR 0 30 20 5 20  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
FRZG RAIN S  
RAIN S C S S  
RAIN SHWRS S S S  
 
DATE SUN 03/26/17 MON 03/27/17 TUE 03/28/17 WED 03/29/17  
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 65 51 69 49 68 48 62  
TEMP 53 53 63 60 55 54 67 61 54 52 66 60 53 50 60 53  
DEWPT 49 49 52 51 50 49 51 49 49 48 52 50 47 43 42 40  
PWIND DIR S S S W SW SW W NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 OV OV B2 B2 B1 B1 B1 B2 B2 B2 B1 B1 B1 SC  
POP 12HR 30 70 60 30 20 50 30 20  
RAIN SHWRS S C L L L L C C S S C C C C S S  
 

 
MDZ014-232100-  
ANNAPOLIS MD  
38.99N 76.49W ELEV. 7 FT  
1033 AM EDT THU MAR 23 2017  
 
DATE THU 03/23/17 FRI 03/24/17 SAT 03/25/17  
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 43 32 57 49 67  
TEMP 38 42 42 37 33 32 33 38 44 52 57 52 52 50 50 50 57 66 67 61  
DEWPT 9 12 14 18 21 23 26 26 29 34 38 39 41 44 44 45 48 51 51 51  
RH 29 29 31 46 61 69 75 62 55 50 49 61 66 80 80 83 72 58 56 70  
WIND DIR N S S S S S S S S S S S SW SW SW SW SW SW S S  
WIND SPD 5 4 6 5 5 8 9 10 12 13 13 10 9 8 6 6 9 8 8 5  
CLOUDS CL CL FW FW FW FW FW B1 OV B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2  
POP 12HR 0 5 30 5 5  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C  
 
DATE SUN 03/26/17 MON 03/27/17 TUE 03/28/17 WED 03/29/17  
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 61 51 67 49 63 47 61  
TEMP 52 52 60 57 54 53 65 60 54 51 61 57 51 49 59 53  
DEWPT 49 48 51 50 50 52 54 52 50 48 50 48 46 45 43 41  
PWIND DIR SE SE SE SW E E NE NW  
WIND CHAR LT GN GN LT LT LT LT GN  
AVG CLOUDS B2 B2 B2 B2 OV OV B2 B1 B1 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 10 50 70 40 20 40 30 10  
RAIN SHWRS C C L L C C S S C C C C  
 

 
 
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