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Home : xt_USA : xt_ East Coast USA : xt_Atl_chesapeake : MD - chesapeake : RRW National Airport : Forecast Graphs

Human Meteorologist Forecasts: Today's Briefing Extended Discussion

Computer Model Data: 9/17 | 9/18 | 9/19 | 9/20 | 9/21 | 9/22 | 9/23 | >>Wind Obs Map<<

Ronald Reagan Washington National Computer Forecast Table - Meteogram

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NAM 12km

GFS 0.5 Deg

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Date	Wednesday, September 17								Thursday, September 18
Time					2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)					9	10	7	5	4	4	3	3	6	7	3	3
Direction
Temperature (F)					67	67	67	66	66	66	66	73	80	81	77	73
Model	NAM 12km								NAM 12km
Model Run					09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z
Precipitation (in)
Pressure (mb)					1016	1016	1016	1016	1015	1016	1017	1017	1016	1014	1015	1016
Visibility (mi)
Cloud Cover (%)					100	100	100	100	59	82	55	21			13	3
Additional Data	Show Additional Data
Date	Friday, September 19								Saturday, September 20
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	4	5	5	5	6	5	2	8	10	8	8	8	7	7	6	7
Direction
Temperature (F)	70	68	66	79	85	85	81	77	67	65	64	67	69	69	67	67
Model	NAM 12km								NAM 12km
Model Run	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z	09/17 18z
Precipitation (in)
Pressure (mb)	1016	1016	1017	1017	1017	1016	1017	1019	1021	1022	1023	1024	1024	1023	1023	1024
Visibility (mi)
Cloud Cover (%)							37	96	49	79	65	81	95	73	96	89
Additional Data	Show Additional Data
Date	Sunday, September 21								Monday, September 22
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	6	5	5	7	7	8	7	5	4	4	2	5	6	7	6	6
Direction
Temperature (F)	64	65	66	68	70	71	68	66	66	65	66	76	79	81	73	68
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z
Precipitation (in)
Pressure (mb)	1023	1023	1024	1024	1023	1022	1023	1022	1022	1021	1022	1022	1020	1018	1020	1020
Visibility (mi)
Cloud Cover (%)				100	94	63	62	54	19	7	16	24	13
Additional Data	Show Additional Data
Date	Tuesday, September 23								Wednesday, September 24
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	3	3	3	5	6	6	5	6	3	3	3	5	4	3	2	4
Direction
Temperature (F)	66	66	67	70	74	75	70	68	67	67	68	75	77	76	71	70
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z
Precipitation (in)
Pressure (mb)	1020	1020	1021	1021	1020	1019	1020	1020	1020	1019	1019	1019	1018	1016	1017	1017
Visibility (mi)
Cloud Cover (%)		78	75	22		3	1	8	3	5	3	23	4	4	5	22
Additional Data	Show Additional Data
Date	Thursday, September 25								Friday, September 26
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	4	3	2	2	2	3	4	4	4	3	3	5	5	8	10	6
Direction
Temperature (F)	68	67	69	75	78	76	71	69	67	66	67	73	80	81	73	70
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z	09/17 12z
Precipitation (in)
Pressure (mb)	1017	1016	1017	1017	1015	1014	1015	1015	1014	1014	1014	1013	1010	1008	1007	1007
Visibility (mi)
Cloud Cover (%)	2			7	4			3					39
Additional Data	Show Additional Data
Date	Saturday, September 27
Time	2am	5am	8am
Wind (mph)	4	3	3
Direction
Temperature (F)	69	68	68
Model	GFS 0.5 Deg
Model Run	09/17 12z	09/17 12z	09/17 12z
Precipitation (in)
Pressure (mb)	1006	1005	1006
Visibility (mi)
Cloud Cover (%)
Additional Data	Show Additional Data