Marine Air Surges Inland
For those of you lot unhappy almost the recent warm days, living inwards a metropolis where air-conditioning is rare, relief is at hand.
As I speak, marine air is pushing rapidly into western Washington. Trees are swaying, temperatures are rapidly falling, the air is moistening, too my current of air chimes are ringing. Life is good. Our natural air-conditioning is turned on, too a nighttime of comfortable sleeping is inwards store.
It has been substantially warmer than normal for the yesteryear week, amongst several days of high temps that were 10F or to a greater extent than inwards a higher house normal (see plot, regal trouble shows the average highs, cyan, average lows). There was a chip of marine air leakage today...resulting inwards highs dropping 5-7F from yesterday.
All meteorologists know to scout the onshore describe per unit of measurement area gradient--the deviation inwards describe per unit of measurement area betwixt the coast (say Hoquiam, HQM) too Seattle (SEA)-- to larn an sentiment of the amount of marine influence. Just a pocket-size alter from offshore to onshore describe per unit of measurement area slope tin brand all the difference. Here are the describe per unit of measurement area differences today. Note that the Hoquiam to Seattle describe per unit of measurement area deviation rose to 3.5 hPa--that is plenty to guarantee a skillful surge of marine air.
Winds accept responded to the onshore describe per unit of measurement area gradient. At Smith Island, inwards the eastern larn out of the Strait of Juan de Fuca (and merely offshore of northern Whidbey Island), winds climbed to 25 knots every bit of nine PM. At Race Rocks, close Victoria, it hitting xl mph.
At the University of Washington, winds accept too picked upwardly to approximately 10 knots (top panel). Temperature at the UW is falling rapidly (third panel) too dew betoken rises (more wet inwards the air). As a result, at that spot has been a huge growth inwards relative humidity (fourth panel) from thirty to 75%. This volition assistance trim back goal peril inwards the west.
The onshore menses is too bringing inwards the depression clouds that accept been waiting their peril offshore. The visible satellite at 8 PM Tuesday shows stratus/stratocumulus pushing inland, specially southward of the Olympics through the Chehalis gap (see below). If you lot alive inwards western Washington hold back to run into lots of clouds when you lot wake upwardly Midweek morning.
The side yesteryear side few days should live on typical for mid-summer--low clouds inwards the morn too temperatures rising into the upper 70sF during the afternoon. Perfection.
There is a cloud inwards the argent lining though....with cool air too higher describe per unit of measurement area inwards western Washington, winds over the eastern slopes of the Cascades (e.g., Ellensburg) should strengthen considerably, resulting inwards an growth potential for stoking whatever fires. Even amongst the pocket-size fry cool-down today, the winds at Ellensburg revved upwardly quite a bit, amongst sustained winds reaching 23 knots too gusts to 37 knots this even (see plots)
Expect fifty-fifty stronger winds at that spot tomorrow.
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Morning update. The cool air moved in, but was quite shallow. Here are the winds too temperatures inwards a higher house Sea Tac Airport (time on x-axis, describe per unit of measurement area on y axis, 850 is almost 5000 ft). Above that level, nearly no alter inwards temperature, but at approximately 2000 ft the temperature it is almost 10C (18F) cooler.
As I speak, marine air is pushing rapidly into western Washington. Trees are swaying, temperatures are rapidly falling, the air is moistening, too my current of air chimes are ringing. Life is good. Our natural air-conditioning is turned on, too a nighttime of comfortable sleeping is inwards store.
It has been substantially warmer than normal for the yesteryear week, amongst several days of high temps that were 10F or to a greater extent than inwards a higher house normal (see plot, regal trouble shows the average highs, cyan, average lows). There was a chip of marine air leakage today...resulting inwards highs dropping 5-7F from yesterday.
All meteorologists know to scout the onshore describe per unit of measurement area gradient--the deviation inwards describe per unit of measurement area betwixt the coast (say Hoquiam, HQM) too Seattle (SEA)-- to larn an sentiment of the amount of marine influence. Just a pocket-size alter from offshore to onshore describe per unit of measurement area slope tin brand all the difference. Here are the describe per unit of measurement area differences today. Note that the Hoquiam to Seattle describe per unit of measurement area deviation rose to 3.5 hPa--that is plenty to guarantee a skillful surge of marine air.
Winds accept responded to the onshore describe per unit of measurement area gradient. At Smith Island, inwards the eastern larn out of the Strait of Juan de Fuca (and merely offshore of northern Whidbey Island), winds climbed to 25 knots every bit of nine PM. At Race Rocks, close Victoria, it hitting xl mph.
At the University of Washington, winds accept too picked upwardly to approximately 10 knots (top panel). Temperature at the UW is falling rapidly (third panel) too dew betoken rises (more wet inwards the air). As a result, at that spot has been a huge growth inwards relative humidity (fourth panel) from thirty to 75%. This volition assistance trim back goal peril inwards the west.
The side yesteryear side few days should live on typical for mid-summer--low clouds inwards the morn too temperatures rising into the upper 70sF during the afternoon. Perfection.
There is a cloud inwards the argent lining though....with cool air too higher describe per unit of measurement area inwards western Washington, winds over the eastern slopes of the Cascades (e.g., Ellensburg) should strengthen considerably, resulting inwards an growth potential for stoking whatever fires. Even amongst the pocket-size fry cool-down today, the winds at Ellensburg revved upwardly quite a bit, amongst sustained winds reaching 23 knots too gusts to 37 knots this even (see plots)
Expect fifty-fifty stronger winds at that spot tomorrow.
________________________________________________
Morning update. The cool air moved in, but was quite shallow. Here are the winds too temperatures inwards a higher house Sea Tac Airport (time on x-axis, describe per unit of measurement area on y axis, 850 is almost 5000 ft). Above that level, nearly no alter inwards temperature, but at approximately 2000 ft the temperature it is almost 10C (18F) cooler.
The visible satellite photograph at half dozen AM shows depression clouds reaching the Cascade foothills, but it is all the same clear inwards the mountains. H5N1 hike this morn to a depression peak would live on glorious.....going from cool to warm too looking downwards on the depression clouds. But hurry! They volition goal dorsum quickly.
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