318 
CLINE. 
western Minnesota and disappeared to the eastward on the 
17th. The pressure during this time was above 30 inches 
along the coast of Oregon and Washington, and the atmos¬ 
pheric movement was generally very well defined from the 
Pacific coast across the divide toward the area of low press¬ 
ure, with considerable cloudiness but no rain from weather- 
bureau stations. Cloudless weather prevailed over the cen¬ 
tral slope. 
The period of hot winds from July 25 to 29 accompanied 
an area of low* pressure which appeared over the central 
plateau region on the 24th, moved eastward to the central 
slope on that date, and on the 25th and 26th developed 
into a trough of low pressure extending from northern 
Minnesota to New Mexico. On the 27th the low pressure 
backed to western Colorado, and the barometer rose about 
.20 of an inch over the central and northern slopes, but on 
the morning of the 28th the low pressure had moved back 
to the central slope and on the 29th extended from eastern 
Colorado to northern Minnesota, after which it moved rap¬ 
idly eastward to the north of the lakes. During the prog¬ 
ress of this low pressure area the barometer stood above 
30 inches along the coast of Oregon and Washington, with 
more or less cloudy weather and rain and a fairly well 
defined movement of the atmosphere from the Pacific east¬ 
ward across the divide toward the low pressure area. 
1887, August 4, 10, and 14, Wellington, Kansas .—“ Hot winds for several 
hours each day on the 4th, 10th, and 14th were noticed, but no material 
damage resulted; rainfall, 5.07 inches, which is 2.41 inches above the 
nine years’ average, this being the largest rainfall for August on our rec¬ 
ord and was well distributed during the month.” J. H. Wolfe, volun¬ 
tary observer. 
The hot winds of August 4 accompanied an area of low 
pressure which extended along the eastern slope on the 
morning of August 1, and did not change, other than to 
deepen, until the 3d, when it commenced moving eastward. 
An area of high pressure, which was off the coast of Oregon 
