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Surprise Storm Strikes NW Oregon / SW Washington April 5th, 2010 Steve Pierce Executive Board Member - Oregon Chapter of the American Meteorological Society (AMS) 360-695-7172 (Vancouver) 503-504-2075 (Portland) stevejpierce@comcast.net

On the 38th anniversary of the deadly F3 Vancouver tornado of April 5th 1972, a small yet compact storm made landfall in SW Washington and NW Oregon about 4:30pm PT today. As the center of the storm neared Astoria, it gained additional strength. The center of the storm then traveled northeast to near Toledo, WA. before slowly dissipating. The pressure gradient in the valley reached its maximum point as the center of the storm was 60 miles northwest of Portland. In Vancouver, WA. a 100ft tall Doug Fir tree snapped in half during the peak of the storm, sending the top half of the tree crashing into a house below, about 5:45pm. Winds reached as high as 70mph along the coast and were mostly in the 40-50mph in the Willamette Valley and in SW Washington. This was the third strong spring storm to strike the Pacific Northwest in the past few weeks. These systems have been supported by a stronger than normal springtime jet pointed at the Pacific Northwest which is more reminiscent of a wintertime pattern.

Location	Elev	Latest Report	24 hr Peak gust

Cape Foul NEWPRT	1024 ft	1839PDT	71
Yaquina Bridge W	120 ft	1830PDT	69
Yaquina Bridge W	120 ft	1830PDT	69
Lincoln C LINCON	187 ft	1834PDT	58
SUGARLOAF	4328 ft	1806PDT	57
Newport	30 ft	1800PDT	56
Cape Mear MEARES	1421 ft	1833PDT	55
Garibaldi	0 ft	1806PDT	54
Newport Municipa	161 ft	1830PDT	54
Buoy 46050	0 ft	1750PDT	54
Forest Gro N7NKE	200 ft	1831PDT	53
Florence/Siuslaw	26 ft	1755PDT	52
Newport DW1265	164 ft	1832PDT	51
Mt. Hebo HEBOWX	3160 ft	1832PDT	50
Newport WA7ZVY-4	128 ft	1834PDT	49
Aurora State Air	194 ft	1819PDT	49
Garibaldi	75 ft	1805PDT	48
Clatsop Spit	30 ft	1800PDT	47
Portland DW3557	750 ft	1833PDT	47
South Beach	0 ft	1806PDT	46
Kalama CW4577	840 ft	1827PDT	46
Buoy 46029	0 ft	1750PDT	45
Cape Disappointm	140 ft	1830PDT	45
DUNES	120 ft	1804PDT	44
Portland Interna	26 ft	1753PDT	44
McMinnville Muni	157 ft	1753PDT	44
Newport DW4355	165 ft	1606PDT	43
Portland-Hillsbo	203 ft	1753PDT	43
Salem, McNary Fi	210 ft	1756PDT	43
Ridgefield N7OFW	260 ft	1810PDT	43
Glen Jackson Bri	180 ft	1830PDT	42
Garibaldi KB7QWZ	10 ft	1833PDT	41
Corvallis Munici	246 ft	1835PDT	41
Glen Jackson Bri	180 ft	1823PDT	40
Eugene, Mahlon S	364 ft	1813PDT	40
Springfie CW9669	462 ft	1827PDT	40
Corbett CW2664	659 ft	1830PDT	40
Timberline Lodge	7001 ft	1500PDT	40
Kalama CW4910	381 ft	1830PDT	40
Road's E W7KKE-3	89 ft	1837PDT	39
Longview	0 ft	1812PDT	39
GOODWIN PEAK	1800 ft	1801PDT	38
AURORA	141 ft	1715PDT	38
Tigard CW9129	200 ft	1830PDT	38
CORVALLIS	230 ft	1715PDT	37
Longview CW9604	896 ft	1834PDT	37
Interstate Bridg	100 ft	1823PDT	37
I-205 at Divisio	270 ft	1532PDT	36
STAYTON	366 ft	1813PDT	36
EAGLE CREEK	747 ft	1813PDT	36
Vancouver DW0710	300 ft	1834PDT	36
Rockaway ROCKWY	450 ft	1827PDT	35
Gresham CW9374	293 ft	1835PDT	35
Portland DW4360	175 ft	1827PDT	35
Scappoose Indust	52 ft	1753PDT	35
Eugene KC7RJK-2	415 ft	1840PDT	35
Vancouver, Pears	26 ft	1827PDT	35
CEDAR	2220 ft	1810PDT	34
FOREST GROVE	180 ft	1715PDT	34
Vancouver CW6873	213 ft	1829PDT	34
Canby CW9654	158 ft	1831PDT	33
Portland CW2936	249 ft	1827PDT	33
Portland-Troutda	36 ft	1753PDT	33
Eugene DW1439	810 ft	1834PDT	33
WILLOW CREEK	456 ft	1754PDT	33
BRUSH CREEK	2300 ft	1814PDT	33
Brush Pra CW7892	285 ft	1834PDT	33
Fremont Bridge W	270 ft	1733PDT	32
ROCKHOUSE 1	1797 ft	1812PDT	32
Long Beac CW9086	7 ft	1826PDT	32
Toke Point	0 ft	1812PDT	32
CANNIBAL MOUNTAI	1939 ft	1803PDT	31
Kelso-Longview A	20 ft	1835PDT	31
CANYON CREEK	2500 ft	1752PDT	31
Astoria Regional	10 ft	1805PDT	30
St Hele WH6KO-10	36 ft	1830PDT	30
Tualatin CW7563	241 ft	1833PDT	30
Springfie CW7901	1320 ft	1832PDT	30
Woodland CW5733	35 ft	1833PDT	30

Oregon Chapter
American Meteorological Society

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Oregon Chapter American Meteorological Society

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Past Weather

Oregon Chapter
American Meteorological Society