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Home : xt_USA : xt_ Pacific_NW : WA - eastern : WA - puget sound : Seatac : Forecast Graphs

Human Meteorologist Forecasts: Tomorrow's Briefing

Computer Model Data: 12/18 | 12/19 | 12/20 | 12/21 | 12/22 | 12/23 | 12/24 | >>Wind Obs Map<<

Seatac Computer Forecast Table - Meteogram

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NAM 12km

GFS 0.5 Deg

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Date	Thursday, December 18								Friday, December 19
Time						4pm	7pm	10pm	1am	4am	7am	10am	1pm	4pm	7pm	10pm
Wind (mph)						15	12	16	12	7	10	12	10	12	11	11
Direction
Temperature (F)						49	50	49	42	40	39	41	40	40	40	40
Model	NAM 12km								NAM 12km
Model Run						12/19 00z	12/19 00z	12/19 00z	12/19 00z	12/19 00z	12/19 00z	12/19 00z	12/19 00z	12/19 00z	12/19 00z	12/19 00z
Precipitation (in)
Pressure (mb)						993	992	995	999	1003	1005	1007	1008	1009	1011	1012
Visibility (mi)
Cloud Cover (%)						100	81	84	4	10	34	59	99	54	20	84
Additional Data	Show Additional Data
Date	Saturday, December 20								Sunday, December 21
Time	1am	4am	7am	10am	1pm	4pm	7pm	10pm	1am	4am	7am	10am	1pm	4pm	7pm	10pm
Wind (mph)	13	11	11	13	14	14	12	13	11	9	11	12	14	10	8	8
Direction
Temperature (F)	40	39	40	42	44	41	41	42	42	40	42	43	43	40	40	39
Model	NAM 12km								GFS 0.5 Deg
Model Run	12/19 00z	12/19 00z	12/19 00z	12/19 00z	12/19 00z	12/19 00z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z
Precipitation (in)
Pressure (mb)	1013	1012	1013	1013	1012	1011	1012	1012	1010	1008	1006	1006	1005	1007	1008	1009
Visibility (mi)
Cloud Cover (%)	60	100	73	100	86	100	99	100	54	26	6	25	96	97	44	39
Additional Data	Show Additional Data
Date	Monday, December 22								Tuesday, December 23
Time	1am	4am	7am	10am	1pm	4pm	7pm	10pm	1am	4am	7am	10am	1pm	4pm	7pm	10pm
Wind (mph)	8	8	10	12	14	13	8	8	8	6	4	2	1	2	1	3
Direction
Temperature (F)	39	38	41	42	46	43	39	39	39	38	36	39	43	40	38	37
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z
Precipitation (in)
Pressure (mb)	1010	1010	1010	1009	1007	1006	1006	1008	1009	1009	1009	1009	1007	1006	1005	1004
Visibility (mi)
Cloud Cover (%)	35	9	60	4	10	65	50	62	42	5	5	5	5	4	1	1
Additional Data	Show Additional Data
Date	Wednesday, December 24								Thursday, December 25
Time	1am	4am	7am	10am	1pm	4pm	7pm	10pm	1am	4am	7am	10am	1pm	4pm	7pm	10pm
Wind (mph)	2	2	2	4	4	5	4	6	7	7	6	5	3	3	1	1
Direction
Temperature (F)	37	36	36	38	42	39	35	34	35	36	36	37	41	38	38	39
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z
Precipitation (in)
Pressure (mb)	1004	1004	1004	1004	1004	1005	1005	1005	1004	1003	1005	1005	1005	1006	1008	1009
Visibility (mi)
Cloud Cover (%)	3	22	7	8	7	5					85			15	95	75
Additional Data	Show Additional Data
Date	Friday, December 26								Saturday, December 27
Time	1am	4am	7am	10am	1pm	4pm	7pm	10pm	1am	4am	7am	10am	1pm	4pm	7pm	10pm
Wind (mph)	3	3	2	2	3	1	4	4	6	6	8	8	8	7	6	8
Direction
Temperature (F)	38	37	35	40	44	41	38	39	41	42	43	45	48	45	44	44
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z	12/18 18z
Precipitation (in)
Pressure (mb)	1009	1009	1009	1010	1009	1009	1011	1011	1012	1014	1016	1018	1017	1016	1015	1013
Visibility (mi)
Cloud Cover (%)	8	3						36	100	98	42	42	3		11	68
Additional Data	Show Additional Data
Date	Sunday, December 28
Time	1am	4am	7am	10am
Wind (mph)	9	10	8	6
Direction
Temperature (F)	44	44	43	43
Model	GFS 0.5 Deg
Model Run	12/18 18z	12/18 18z	12/18 18z	12/18 18z
Precipitation (in)
Pressure (mb)	1012	1010	1009	1008
Visibility (mi)
Cloud Cover (%)	53	84	95	90
Additional Data	Show Additional Data