FEBRUARY, 1911. MONTHLY WEATHER? REVIEW. 219
except in tlie western ptwt of Estes Park. As ti whole the
snow is loosely packed on tlie eastern slope. The snow
scales on tlie South Platte watershed showtd an average
depth of 31 inches at tlie end of tlie month; this is G
inches more thnn was on the ground ttt the same tiiiie last
year. Over the North Plat te wnterslied the average
depth was 22 inches. c r ‘I! inches more than a t the same
time last yeiir.--F: H. Bra ndc.)i 7.1 ury, Di‘drict Foreemter. S’outh Dnkotn.-Tlie snow on the ~rouncl at the end of
the nioiitli ranged in depth from 6 to 24 inrlies in tlir iiiore
elevated portions nf tlie Black Hills.--K. TIT. (J c n ti, Section Director.
RIVERS.
The streams nbove tlie 3.000-foot contour were low or I n the lower elevated frozen throughout the month.
country, wliere tlie precipit ation was greater and the
weather mild. tlie stages were quite normal. There was
very little floatin,a ice; in tlie Mississippi opposite St.
Louis light ice, tliat caused no inconvenience, was running
from the Slst to the X t h , inclusive.
MISCELLANEOUS PHENOMENA.
Auroras were observed in tlie upper portion of the
clraina,ve area on the 2c1, 31st-24th, L‘Gtli, and 27th. On
the niqlit of the 14th at about Y 11. in. a brilliant meteor
was observed iit several stations in southetistern South Dakota. I n the lower portion of the drainage area thun-
derstorms mere rather more frequent, t l i n i i is usual in
Febru ary .
CORRECTION TO DECEMBER, 1910.
The r! illustrations hereunder were inadvertently omitted froni the paper, “Are the Springs Colder Now? ” by
George Reetler, Section Director, Weather Bureau, Dist,rict No. 6 , December, 1910.
FIO. 1.
FIG. 2.--Last date on which freezing temperature oocurred.