PSRG-FUN Blog: UNDER PRESSURE -- Record Barometric Pressure for Seattle, WA?

National Weather Service:
Seattle, Seattle-Tacoma International Airport (Obs)
Are you UNDER PRESSURE -- want some relief? Check out Freddie (& Queen), Annie & David below!

Seattle sets all-time record high pressure reading - KOMO (2011)

Sea-Tac Airport records highest atmospheric - KIRO (2011):

Posted: 3:45 p.m. Thursday, Dec. 1, 2011

Sea-Tac Airport records highest atmospheric pressure reading ever at Sea-Tac Airport was recorded Wednesday night, KIRO 7 Chief Meteorologist Rebecca Stevenson reports.

At midnight, the barometer hit 1043.4 millibars, breaking the previous record of 1043.0 millibars, set on January 28, 1949.

The all-time highest atmospheric pressure recorded in Seattle, with records dating back to the late 19th century, was 1043.9 millibars, or 30.83 inches of Mercury. It was recorded in downtown Seattle on December 3, 1921.

Here are a few other pressure records, courtesy of the University of Washington Atmospheric Department:

1043.4 millibars, 30.81 inches of Mercury – December 1, 2011
1043.0 millibars, 30,80 inches of Mercury – January 28, 1949
1042.3 millibars, 30.78 inches of Mercury – January 16, 1957

BP at KSEA: 2014-12-30 at 12:53 30.80 [1044.2]
BP at KSEA: 2014-12-30 at 11:53 30.83 [1045.0]
BP at KSEA: 2014-12-30 at 10:53 30.84 [1045.4]
BP at KSEA: 2014-12-30 at 09:53 30.84 [1045.3]

D a t e	Time (pst)	Wind (mph)	Vis. (mi.)	Weather	Sky Cond.	Temperature (ºF)				Rel Hum	Wind Chill (°F)	Heat Index (°F)	Pressure
						Air	Dwpt	6 hour					alt (in)	sea level (mb)
						Air	Dwpt	Max.	Min.				alt (in)	sea level (mb)
30	08:53	NE 9	10.00	Fair	CLR	30	9			41%	22	NA	30.82	1044.9
30	07:53	NE 8	10.00	Fair	CLR	29	9			43%	21	NA	30.81	1044.4
30	06:53	NE 7	10.00	Fair	CLR	29	10			45%	22	NA	30.81	1044.4
30	05:53	E 9	10.00	Fair	CLR	29	12			49%	21	NA	30.81	1044.4
30	04:53	NE 10	10.00	Fair	CLR	29	13			51%	20	NA	30.81	1044.4
30	03:53	E 13	10.00	Fair	CLR	31	11	36	29	43%	21	NA	30.80	1044.0
30	02:53	Vrbl 5	10.00	Fair	CLR	31	15			52%	26	NA	30.79	1043.8
30	01:53	NE 8	10.00	A Few Clouds	FEW040	32	15			50%	25	NA	30.77	1042.9
30	00:53	NE 8	10.00	A Few Clouds	FEW040	32	16			52%	25	NA	30.74	1042.1
29	23:53	E 3	10.00	A Few Clouds	FEW035	34	14			44%	NA	NA	30.72	1041.4
29	22:53	NE 7	10.00	Partly Cloudy	FEW030 SCT060	34	17			50%	28	NA	30.70	1040.7
29	21:53	E 8	10.00	Mostly Cloudy	BKN034	36	16	40	35	44%	30	NA	30.67	1039.7
29	20:53	E 5	10.00	Mostly Cloudy	FEW040 BKN055	36	19			50%	32	NA	30.64	1038.6