912  
FOUS51 KLWX 230556  
PFMLWX  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
155 AM EDT THU MAR 23 2017  
 
VAZ054-232100-  
REAGAN NATIONAL AIRPORT-ARLINGTON VA  
38.86N 77.03W ELEV. 66 FT  
155 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 74  
TEMP 30 30 41 46 48 42 37 35 37 42 48 56 61 58 56 54 52 53 62 71 74 66  
DEWPT 12 12 10 10 11 16 18 20 22 25 29 34 37 41 43 46 46 47 50 53 51 53  
RH 46 46 27 23 22 34 46 54 54 50 47 43 41 53 62 74 80 80 65 53 44 63  
WIND DIR N N N S S SE S S S S S S SW SW SW SW SW SW SW SW S S  
WIND SPD 5 5 3 3 5 5 5 6 8 9 11 13 14 10 9 6 5 4 8 5 8 3  
CLOUDS FW FW FW FW SC SC FW SC SC B2 OV B2 B2 B1 B2 B1 B2 B2 B2 OV B2 OV  
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 51 71 50 66 49 63  
TEMP 58 55 63 59 55 55 68 63 56 53 63 58 52 50 60 54  
DEWPT 52 50 52 51 52 53 54 53 51 49 49 48 45 44 42 40  
PWIND DIR SE SE SE SW E SE NW 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 B1  
POP 12HR 10 50 70 40 20 50 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  
155 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 28 59 49 72  
TEMP 24 24 38 45 46 37 30 28 30 35 42 51 59 54 52 50 50 50 60 70 71 63  
DEWPT 10 10 8 9 10 15 19 20 22 24 28 31 35 38 41 44 44 46 49 52 51 52  
RH 54 54 28 22 23 40 63 71 72 64 57 46 40 54 66 80 80 86 67 53 49 67  
WIND DIR N N N SW S S S S S S S S SW SW SW SW SW SW SW SW S S  
WIND SPD 5 5 4 3 5 4 4 6 6 8 11 12 12 8 8 6 4 4 8 5 6 4  
CLOUDS FW FW FW FW FW SC SC SC SC B2 OV B2 B2 B1 B2 B2 B2 B2 OV OV OV OV  
POP 12HR 0 5 40 5 10  
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 62 48 68 46 64 46 62  
TEMP 54 52 60 56 52 52 65 59 52 49 61 56 50 47 59 52  
DEWPT 50 48 50 49 50 50 53 51 48 46 48 47 43 41 41 38  
PWIND DIR SE E SE SW E E N NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 OV OV OV OV OV B2 B1 B1 B2 B2 B2 B2 B1 B1 B1  
POP 12HR 10 50 70 40 20 50 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  
155 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 29 29 40 45 46 41 37 35 37 41 46 52 58 55 52 52 51 52 61 69 70 65  
DEWPT 9 9 7 9 11 16 18 21 23 24 28 32 36 39 42 44 44 45 48 51 52 52  
RH 42 42 25 22 24 36 46 56 56 50 49 46 44 55 69 74 77 77 62 53 53 63  
WIND DIR N N N SW S S S S S S S S SW S SW SW SW SW SW SW S SE  
WIND SPD 4 5 4 3 5 4 4 5 6 8 10 11 12 8 8 5 4 4 8 5 6 3  
CLOUDS FW FW FW FW FW SC FW SC SC B2 OV B2 B2 B1 B2 B2 B2 B2 OV OV OV OV  
POP 12HR 0 5 40 5 10  
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 55 60 49 67 47 63 47 61  
TEMP 57 55 58 55 52 52 64 59 53 50 60 56 50 48 58 52  
DEWPT 49 47 49 49 49 49 52 51 48 46 47 47 43 41 40 38  
PWIND DIR SE E SE SW E SE NW NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 OV OV OV OV OV B2 B1 B1 B2 B2 B2 B2 B1 B1 B1  
POP 12HR 10 50 80 40 20 50 40 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  
155 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 63 47 73  
TEMP 22 20 36 44 48 38 31 28 30 36 44 55 63 58 53 49 47 49 60 70 73 65  
DEWPT 8 9 7 9 11 12 15 17 20 24 29 36 40 42 42 44 42 45 49 53 51 52  
RH 54 62 29 23 22 34 51 63 66 61 55 49 43 55 66 83 83 86 67 55 46 63  
WIND DIR N N SE S S SE SE S S S S S SW SW SW SW SW SW SW SW S SE  
WIND SPD 3 3 2 4 6 5 4 5 5 6 6 11 11 8 5 3 4 2 4 3 5 3  
CLOUDS FW FW FW FW FW SC SC SC B1 OV OV B2 B2 B1 B2 B2 B2 OV OV OV OV OV  
POP 12HR 0 40 40 10 20  
QPF 12HR 0 0 0 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 47 69 46 65 45 61  
TEMP 53 51 60 57 52 51 66 60 52 49 62 56 49 46 58 51  
DEWPT 50 47 51 50 49 47 51 49 46 46 48 46 42 39 40 37  
PWIND DIR SE SE S W E S NW NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 OV OV OV OV B2 B1 B1 B2 OV B2 B2 B1 B1 B1  
POP 12HR 30 70 70 30 20 50 30 20  
RAIN SHWRS C L L L L C C S S C C C C S S  
 

 
VAZ506-232100-  
WASHINGTON DULLES AIRPORT-LOUDOUN VA  
38.96N 77.45W ELEV. 321 FT  
155 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 49 29 61 49 73  
TEMP 22 21 37 46 49 39 32 29 30 35 43 53 61 56 52 50 50 50 59 69 73 64  
DEWPT 10 11 9 10 11 15 17 19 21 24 29 34 38 40 42 45 45 46 49 52 51 52  
RH 59 65 31 23 21 37 53 66 69 64 57 48 42 55 69 83 83 86 69 55 46 65  
WIND DIR N N NE S S SE SE S S S S S S S SW SW SW SW SW SW S S  
WIND SPD 4 3 3 3 5 5 5 6 8 9 10 13 13 10 8 5 5 3 6 4 8 3  
CLOUDS FW FW FW FW SC SC SC SC SC B2 OV B2 B1 B1 B2 B2 B2 B2 B2 OV B2 OV  
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 50 71 48 65 47 62  
TEMP 54 53 62 59 54 54 68 62 54 51 62 57 51 48 59 52  
DEWPT 51 49 51 51 52 52 52 51 49 48 49 48 44 42 42 40  
PWIND DIR SE SE SE W NE SE NW NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 OV B2 OV OV B2 B2 B1 B1 B2 B2 B2 B2 B1 B1 B1  
POP 12HR 10 60 70 30 20 50 30 20  
RAIN SHWRS L L L L C C S S C C C C S S  
 

 
VAZ037-232100-  
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA  
38.14N 78.45W ELEV. 640 FT  
155 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 65 48 74  
TEMP 27 25 38 47 49 39 32 29 31 37 46 57 65 60 55 52 49 49 61 71 74 66  
DEWPT 9 9 5 9 11 14 17 19 22 25 28 34 37 41 42 44 43 44 47 49 48 50  
RH 46 50 25 21 21 35 53 66 69 61 49 42 35 49 61 74 80 83 60 46 40 56  
WIND DIR NE NE E S S S S S S S S S SW S SW SW SW SW SW SW S S  
WIND SPD 3 3 4 4 6 5 5 5 6 8 10 13 14 9 6 4 4 4 8 6 9 4  
CLOUDS FW FW FW FW FW SC FW SC SC B2 B2 B1 B1 B1 SC B1 B2 B2 B2 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 69 51 73 49 70 47 67  
TEMP 55 54 66 62 56 55 70 63 56 53 67 60 52 49 64 55  
DEWPT 50 50 51 53 52 51 51 51 49 48 49 50 45 42 42 40  
PWIND DIR S S S SW SW S W NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 OV B2 B2 B2 B2 B1 B1 B1 B2 B2 B2 B1 B1 SC SC  
POP 12HR 20 60 60 30 20 50 20 20  
RAIN SHWRS S L L L L C C S S C C S S S S  
 

 
MDZ003-232100-  
HAGERSTOWN AIRPORT-WASHINGTON MD  
39.71N 77.73W ELEV. 705 FT  
155 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 60 48 71  
TEMP 22 21 35 43 47 38 31 29 31 36 43 52 60 55 52 50 48 50 60 68 71 62  
DEWPT 7 8 7 9 10 11 13 17 20 23 27 35 40 41 42 44 42 46 49 53 52 51  
RH 52 56 30 24 22 32 47 60 63 59 53 52 47 59 69 80 80 86 67 59 51 67  
WIND DIR N N W S S SE SE S S S S S SW SW SW SW SW SW SW SW S SE  
WIND SPD 4 3 2 3 5 5 6 6 8 8 9 10 12 8 6 4 4 3 5 4 5 3  
CLOUDS FW FW FW FW FW SC SC B1 B2 OV OV B2 B2 B2 B2 B2 OV OV OV OV OV OV  
POP 12HR 0 40 50 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 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 60 46 67 46 63 45 59  
TEMP 50 50 58 54 50 50 64 59 52 49 60 55 49 46 56 49  
DEWPT 50 47 49 48 48 46 50 48 46 46 47 46 42 39 39 36  
PWIND DIR SE SE SE W E S NW NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS OV OV OV OV OV OV B2 B1 B1 B2 OV OV B2 B1 B1 B1  
POP 12HR 30 70 80 30 20 50 30 20  
RAIN SHWRS S C L L D D C C S S C C C C S S  
 

 
MDZ017-232100-  
PATUXENT RIVER NAS MD  
38.29N 76.41W ELEV. 39 FT  
155 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 31 58 50 67  
TEMP 29 28 38 42 42 37 33 32 34 39 45 53 58 52 54 52 50 51 58 65 66 59  
DEWPT 13 12 11 13 15 17 21 24 26 27 29 35 38 41 43 46 46 46 50 51 50 50  
RH 51 50 32 30 33 44 61 72 72 62 53 50 47 66 66 80 86 83 75 60 56 72  
WIND DIR N N N NE SE SE S S S S S S S S SW SW SW SW SW SW S S  
WIND SPD 10 9 6 4 4 5 6 9 10 10 13 13 13 11 11 10 9 8 11 9 10 6  
CLOUDS FW FW FW FW FW SC FW SC FW SC B1 B2 B1 B1 B1 B1 B1 B2 B1 B2 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 64 50 65 48 63 47 60  
TEMP 52 53 62 58 54 53 62 58 53 51 60 56 50 48 57 52  
DEWPT 50 49 52 50 51 51 53 50 50 48 49 48 45 43 43 40  
PWIND DIR S SE S SW E SE NW NW  
WIND CHAR LT LT GN LT LT LT LT GN  
AVG CLOUDS B1 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 5 40 60 40 20 50 30 20  
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  
155 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 72  
TEMP 22 20 35 45 51 41 34 32 35 41 51 62 69 61 54 52 51 51 60 70 71 63  
DEWPT 9 10 7 11 13 16 20 23 25 29 38 46 47 47 45 47 45 46 49 51 51 51  
RH 57 64 30 25 21 36 56 69 66 62 61 56 45 60 71 83 80 83 67 51 49 65  
WIND DIR E SE SE SE S S S S S S SW W SW SW SW SW SW SW SW SW S SE  
WIND SPD 2 2 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 FW SC SC B1 B2 OV OV B1 B2 B1 B2 B2 OV OV OV OV OV OV  
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 66 49 69 48 67 47 60  
TEMP 53 53 63 59 54 53 66 61 54 51 64 58 51 48 57 50  
DEWPT 49 48 52 51 50 48 50 49 49 48 51 48 44 40 41 39  
PWIND DIR S S S W SW SW W NW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 OV OV OV B2 B2 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1  
POP 12HR 30 70 70 30 30 50 40 30  
RAIN SHWRS S C L L L L C C C C C C C C C C  
 

 
MDZ014-232100-  
ANNAPOLIS MD  
38.99N 76.49W ELEV. 7 FT  
155 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 31 57 49 68  
TEMP 28 27 37 42 43 37 33 32 33 38 44 52 57 52 52 50 50 50 57 66 67 61  
DEWPT 11 10 9 12 14 18 21 23 25 26 29 34 38 40 41 45 45 46 48 52 51 51  
RH 48 48 31 29 30 46 61 69 72 62 55 50 49 63 66 83 83 86 72 61 56 70  
WIND DIR N N N S S S S S S S S S S S SW SW SW SW SW SW S S  
WIND SPD 9 8 5 4 6 5 5 8 9 10 12 13 13 10 9 8 6 6 9 8 8 5  
CLOUDS FW FW FW FW FW SC FW SC SC B1 OV B2 B1 B1 B2 B1 B2 B2 B2 B2 B2 OV  
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 49 66 47 62 47 60  
TEMP 52 51 59 56 53 52 63 58 52 50 59 55 50 48 57 52  
DEWPT 49 48 50 49 49 50 53 51 48 46 48 47 44 42 41 40  
PWIND DIR SE SE SE SW E E N NW  
WIND CHAR LT GN GN LT LT LT LT GN  
AVG CLOUDS B2 OV B2 OV OV OV B2 B1 B1 B2 B2 B2 B2 B1 B1 B1  
POP 12HR 10 50 70 40 20 50 30 10  
RAIN SHWRS C C L L C C S S C C C C  
 

 
 
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