024  
FOUS51 KLWX 250240  
PFMLWX  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1039 PM EDT FRI SEP 24 2021  
 
VAZ054-250900-  
REAGAN NATIONAL AIRPORT-ARLINGTON VA  
38.86N 77.03W ELEV. 66 FT  
1039 PM EDT FRI SEP 24 2021  
 
DATE 09/24/21 SAT 09/25/21 SUN 09/26/21 MON  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 52 77 59 75 58  
TEMP 62 57 54 59 69 75 74 68 65 62 61 61 68 72 72 67 63 61 59 59  
DEWPT 52 52 51 51 53 52 53 53 54 53 53 52 51 48 48 47 48 48 48 48  
RH 70 83 90 75 57 45 48 59 68 72 75 72 54 42 42 49 58 62 67 67  
WIND DIR N NW NW NW W SW W SW SW NW NW NW NW NW W W W SW W W  
WIND SPD 2 2 2 2 3 4 4 3 3 5 6 6 10 10 10 5 5 5 5 5  
CLOUDS CL CL FW FW FW B1 B2 SC FW FW FW CL CL CL CL CL CL CL FW CL  
POP 12HR 0 0 5 5 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 09/27 TUE 09/28/21 WED 09/29/21 THU 09/30/21 FRI 10/01/21  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 79 62 81 62 77 59 74 59 74  
TEMP 76 71 65 64 78 71 66 64 74 68 62 60 72 66 62 60 71 67  
DEWPT 53 53 54 55 59 59 58 55 56 55 54 52 53 52 54 53 55 54  
PWIND DIR W SW W NW N N NE N NE  
WIND CHAR LT LT LT LT LT LT GN LT GN  
AVG CLOUDS FW FW FW SC SC SC SC SC FW FW FW FW FW FW FW SC SC SC  
POP 12HR 0 5 10 20 20 5 5 5 20  
RAIN SHWRS S S S S  
 

 
MDZ013-250900-  
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD  
39.19N 76.67W ELEV. 154 FT  
1039 PM EDT FRI SEP 24 2021  
 
DATE 09/24/21 SAT 09/25/21 SUN 09/26/21 MON  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 51 78 57 75 56  
TEMP 56 52 51 57 71 76 75 68 62 60 58 59 69 73 73 66 61 58 57 57  
DEWPT 52 51 50 50 52 52 52 53 53 53 52 51 50 48 47 47 48 47 47 49  
RH 86 96 96 77 51 43 45 59 72 78 80 75 51 41 40 50 62 67 69 75  
WIND DIR NW NW NW W W W W W W W NW NW NW NW W W W W W W  
WIND SPD 1 1 2 2 2 4 5 2 2 5 5 6 10 12 11 5 3 3 4 5  
CLOUDS CL CL FW FW FW SC B2 SC FW FW CL CL CL CL FW CL CL CL FW CL  
POP 12HR 0 0 5 5 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 09/27 TUE 09/28/21 WED 09/29/21 THU 09/30/21 FRI 10/01/21  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 78 58 81 59 76 56 74 56 74  
TEMP 75 69 62 61 78 70 62 60 74 66 60 57 72 65 59 58 71 65  
DEWPT 55 56 54 55 61 61 58 56 58 58 55 53 55 55 54 54 57 56  
PWIND DIR W SW W NW N N NE N NE  
WIND CHAR GN LT LT LT LT LT GN LT GN  
AVG CLOUDS FW FW SC SC FW SC SC SC FW FW FW FW FW SC SC SC SC SC  
POP 12HR 0 5 10 20 20 5 5 10 20  
RAIN SHWRS S S S S  
 

 
MDZ011-250900-  
BALTIMORE INNER HARBOR-BALTIMORE CITY MD  
39.28N 76.61W ELEV. 20 FT  
1039 PM EDT FRI SEP 24 2021  
 
DATE 09/24/21 SAT 09/25/21 SUN 09/26/21 MON  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 52 77 57 75 56  
TEMP 58 55 53 57 70 76 74 68 63 61 59 58 68 72 72 66 62 59 57 59  
DEWPT 54 52 51 52 55 54 55 55 56 55 54 53 53 51 50 49 49 49 48 50  
RH 86 90 93 83 59 46 51 63 78 81 83 83 59 48 46 54 62 69 72 72  
WIND DIR NW NW NW NW NW SW W W W NW NW NW NW NW W W W W W W  
WIND SPD 1 1 1 1 2 3 5 2 2 4 5 5 10 11 11 5 2 3 3 4  
CLOUDS CL CL FW FW FW SC B2 SC SC FW CL CL CL CL FW CL CL CL FW CL  
POP 12HR 0 0 5 5 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 09/27 TUE 09/28/21 WED 09/29/21 THU 09/30/21 FRI 10/01/21  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 78 60 81 60 75 56 74 57 74  
TEMP 76 70 64 62 79 71 63 61 74 67 60 58 72 65 60 59 72 66  
DEWPT 55 55 55 56 61 61 58 56 57 56 54 53 55 54 54 55 58 57  
PWIND DIR W W W N N N NE N NE  
WIND CHAR LT LT LT LT LT LT GN LT GN  
AVG CLOUDS FW FW SC SC SC SC SC SC FW FW FW FW FW SC FW FW SC SC  
POP 12HR 0 5 10 20 20 5 5 10 20  
RAIN SHWRS S S S S  
 

 
WVZ052-250900-  
MARTINSBURG AIRPORT-BERKELEY WV  
39.41N 77.98W ELEV. 558 FT  
1039 PM EDT FRI SEP 24 2021  
 
DATE 09/24/21 SAT 09/25/21 SUN 09/26/21 MON  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 44 74 51 72 51  
TEMP 52 48 44 51 65 72 71 63 59 56 53 54 64 70 70 61 57 54 53 54  
DEWPT 48 46 44 47 50 50 51 52 51 50 49 49 47 44 44 44 44 44 44 47  
RH 86 93100 86 58 46 49 67 75 80 86 83 54 39 39 53 62 69 71 77  
WIND DIR W W W W SW SW W W W W W W NW W W W W SW SW W  
WIND SPD 1 2 1 1 2 4 3 2 3 4 4 5 10 11 10 4 3 4 3 4  
WIND GUST 21  
CLOUDS CL CL FW SC SC B2 B2 SC SC CL FW CL CL FW CL CL CL FW FW FW  
POP 12HR 0 5 5 5 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 09/27 TUE 09/28/21 WED 09/29/21 THU 09/30/21 FRI 10/01/21  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 77 56 79 55 75 52 72 51 72  
TEMP 75 67 59 58 77 68 59 57 73 64 56 54 70 62 55 54 69 62  
DEWPT 54 55 53 54 60 60 56 54 57 56 52 51 54 54 51 51 56 55  
PWIND DIR W SW W NW N N N N NE  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS FW SC FW SC SC SC SC SC FW FW FW FW FW FW FW SC SC SC  
POP 12HR 0 10 20 20 20 5 5 5 10  
RAIN SHWRS S S S S  
TSTMS S  
 

 
VAZ506-250900-  
WASHINGTON DULLES AIRPORT-LOUDOUN VA  
38.96N 77.45W ELEV. 321 FT  
1039 PM EDT FRI SEP 24 2021  
 
DATE 09/24/21 SAT 09/25/21 SUN 09/26/21 MON  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 47 76 54 74 52  
TEMP 54 50 47 54 68 74 73 65 60 58 56 57 67 72 71 64 58 55 54 57  
DEWPT 51 49 47 50 52 52 53 53 53 52 51 52 49 48 46 47 46 46 46 48  
RH 90 96100 86 57 46 49 65 78 80 83 83 52 42 41 54 64 72 74 72  
WIND DIR S NW NW NW W SW SW SW W NW NW NW NW NW W W W W W W  
WIND SPD 2 2 2 2 4 5 4 2 3 5 5 5 11 11 9 4 4 3 3 4  
CLOUDS CL FW FW FW SC B1 B2 FW SC FW CL CL CL CL CL CL CL CL FW FW  
POP 12HR 0 0 5 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 09/27 TUE 09/28/21 WED 09/29/21 THU 09/30/21 FRI 10/01/21  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 78 57 81 58 76 54 73 53 73  
TEMP 76 68 61 61 79 70 62 61 74 66 58 57 71 63 57 56 71 64  
DEWPT 52 53 53 55 59 59 57 55 56 56 53 52 53 53 52 52 55 55  
PWIND DIR W SW W NW N N N N NE  
WIND CHAR LT LT LT LT LT LT LT LT GN  
AVG CLOUDS FW FW SC SC SC SC SC SC FW FW FW FW FW FW FW SC SC SC  
POP 12HR 0 5 20 20 20 5 5 5 20  
RAIN SHWRS S S S S S  
TSTMS S  
 

 
VAZ037-250900-  
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA  
38.14N 78.45W ELEV. 640 FT  
1039 PM EDT FRI SEP 24 2021  
 
DATE 09/24/21 SAT 09/25/21 SUN 09/26/21 MON  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 46 76 53 76 52  
TEMP 54 49 46 54 68 74 74 65 60 57 55 55 68 74 73 64 58 56 54 55  
DEWPT 50 49 46 49 51 50 51 52 51 50 50 50 49 47 47 47 47 46 46 47  
RH 86100100 83 54 43 44 63 72 77 83 83 51 38 40 54 67 69 74 74  
WIND DIR NW NW NW W SW S S NW W W W W NW W W W W W W W  
WIND SPD 2 1 1 2 4 5 5 2 2 2 3 3 6 6 5 3 2 2 2 3  
CLOUDS CL CL FW CL B1 B1 B1 FW FW CL CL CL CL CL CL CL CL CL FW CL  
POP 12HR 0 5 0 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 09/27 TUE 09/28/21 WED 09/29/21 THU 09/30/21 FRI 10/01/21  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 80 58 82 59 80 56 75 56 74  
TEMP 78 69 61 61 80 71 64 61 77 68 60 58 73 65 59 57 71 65  
DEWPT 50 53 53 54 57 59 59 56 57 57 55 52 53 52 52 52 53 53  
PWIND DIR SW W W NW N N NE N NE  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS CL FW FW SC SC SC FW FW FW FW FW FW FW FW FW SC SC SC  
POP 12HR 0 5 20 20 20 10 5 5 20  
RAIN SHWRS S S S S S  
TSTMS S  
 

 
MDZ003-250900-  
HAGERSTOWN AIRPORT-WASHINGTON MD  
39.71N 77.73W ELEV. 705 FT  
1039 PM EDT FRI SEP 24 2021  
 
DATE 09/24/21 SAT 09/25/21 SUN 09/26/21 MON  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 45 74 54 72 54  
TEMP 56 51 47 53 65 72 71 66 62 59 55 55 64 70 70 64 59 57 55 56  
DEWPT 49 48 47 48 51 51 52 52 53 52 51 50 48 46 45 44 46 46 46 47  
RH 77 89100 83 60 48 51 61 72 78 86 83 56 42 41 48 62 67 72 72  
WIND DIR S S E E SW SW SW S W W W W W W W W SW SW SW W  
WIND SPD 2 1 2 2 3 5 5 3 3 4 5 5 10 12 11 5 5 4 5 5  
WIND GUST 23  
CLOUDS CL CL FW FW SC B2 B2 SC SC FW FW CL CL FW CL CL CL FW FW FW  
POP 12HR 0 5 5 5 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 09/27 TUE 09/28/21 WED 09/29/21 THU 09/30/21 FRI 10/01/21  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 76 58 78 58 74 54 72 54 72  
TEMP 73 68 63 60 76 69 62 58 71 65 59 55 69 64 58 55 69 64  
DEWPT 53 53 53 54 58 58 56 54 55 53 51 49 51 51 51 50 54 53  
PWIND DIR W SW W NW N N NE N NE  
WIND CHAR GN LT LT LT LT LT GN LT GN  
AVG CLOUDS FW SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW SC SC  
POP 12HR 0 10 20 20 10 5 5 5 10  
RAIN SHWRS S S S  
TSTMS S  
 

 
MDZ017-250900-  
PATUXENT RIVER NAS MD  
38.29N 76.41W ELEV. 39 FT  
1039 PM EDT FRI SEP 24 2021  
 
DATE 09/24/21 SAT 09/25/21 SUN 09/26/21 MON  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 56 77 61 76 60  
TEMP 60 57 56 64 73 75 75 69 66 65 63 64 71 74 75 68 65 64 62 65  
DEWPT 54 54 54 56 55 54 54 54 56 56 55 56 53 51 50 52 52 52 52 53  
RH 81 90 93 75 53 48 48 59 70 73 75 75 53 44 41 57 63 65 70 65  
WIND DIR N N N N N N NW W W W NW NW NW NW NW W W W W W  
WIND SPD 5 5 5 4 5 5 3 2 5 6 10 11 13 12 10 5 5 5 6 6  
CLOUDS CL CL CL FW FW SC B1 SC CL FW 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 09/27 TUE 09/28/21 WED 09/29/21 THU 09/30/21 FRI 10/01/21  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 80 63 82 64 77 61 74 61 74  
TEMP 78 72 68 67 80 72 68 67 75 69 64 63 72 67 64 64 73 68  
DEWPT 54 57 57 58 60 62 61 60 58 58 58 56 55 55 57 57 58 58  
PWIND DIR SW SW W NW N N N NE NE  
WIND CHAR GN LT GN LT GN LT GN GN GN  
AVG CLOUDS CL CL FW FW FW SC SC SC FW FW FW FW FW FW FW SC SC SC  
POP 12HR 0 5 10 20 20 10 5 10 20  
RAIN SHWRS S S S S  
TSTMS S  
 

 
WVZ502-250900-  
PETERSBURG WV  
38.99N 79.15W ELEV. 963 FT  
1039 PM EDT FRI SEP 24 2021  
 
DATE 09/24/21 SAT 09/25/21 SUN 09/26/21 MON  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 43 74 50 71 51  
TEMP 50 44 43 49 64 73 71 62 57 54 51 50 62 69 69 59 55 54 53 52  
DEWPT 46 44 42 44 51 51 50 51 52 51 49 46 48 46 47 46 46 45 44 45  
RH 86100 96 83 63 46 47 67 83 90 93 86 60 44 45 62 72 71 71 77  
WIND DIR SW SW SW S S W W W SW S W W W W W W W W W W  
WIND SPD 2 2 2 2 3 5 5 3 3 3 3 4 6 10 9 5 4 4 4 4  
CLOUDS CL SC SC B1 B1 B2 FW SC FW FW SC FW FW CL CL CL CL FW SC SC  
POP 12HR 0 5 10 5 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
OBVIS F PF  
 
DATE 09/27 TUE 09/28/21 WED 09/29/21 THU 09/30/21 FRI 10/01/21  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 77 56 79 55 77 52 72 51 72  
TEMP 75 65 59 57 77 67 59 56 75 64 56 52 70 61 55 52 69 61  
DEWPT 52 54 52 53 60 60 55 53 57 56 52 50 54 53 50 49 54 54  
PWIND DIR W W W W NW N NE NE NE  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS FW SC SC B1 SC SC SC SC SC FW FW SC FW FW FW SC SC SC  
POP 12HR 0 10 20 20 20 5 5 5 10  
RAIN SHWRS S S S  
TSTMS S  
 

 
MDZ014-250900-  
ANNAPOLIS MD  
38.99N 76.49W ELEV. 7 FT  
1039 PM EDT FRI SEP 24 2021  
 
DATE 09/24/21 SAT 09/25/21 SUN 09/26/21 MON  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 52 74 60 73 59  
TEMP 60 57 54 61 69 73 73 69 65 63 62 62 67 71 72 67 65 62 61 62  
DEWPT 54 54 54 54 54 53 53 54 56 55 54 53 51 49 48 49 51 50 50 51  
RH 81 90100 78 59 49 49 59 73 75 75 72 56 46 42 52 60 65 67 67  
WIND DIR N NW NW NW NW S W SW W W NW NW NW NW W W W W W W  
WIND SPD 2 2 2 2 3 4 4 2 2 4 6 8 11 12 10 5 4 4 5 5  
CLOUDS CL CL FW FW SC SC B1 SC FW FW FW CL CL CL CL CL CL CL FW FW  
POP 12HR 0 0 5 5 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 09/27 TUE 09/28/21 WED 09/29/21 THU 09/30/21 FRI 10/01/21  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 76 62 78 63 74 59 72 60 72  
TEMP 74 71 66 65 76 71 66 64 72 68 63 61 69 66 62 62 70 67  
DEWPT 54 56 56 57 59 60 59 57 56 56 56 54 54 54 56 55 56 57  
PWIND DIR W SW W NW N N NE NE NE  
WIND CHAR GN LT LT LT LT LT GN LT GN  
AVG CLOUDS FW FW FW SC SC SC SC SC FW FW FW FW FW FW FW SC SC SC  
POP 12HR 0 5 10 20 20 5 5 10 20  
RAIN SHWRS S S S S  
 

 
 
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