120 MONTHLY WEATHER REVIEW. JANUARY, 191 1
Inrhrs. Bear Valley (Nevada County) ............ 49.02
Ben Lomond ______... 42.57
nlue Canvon.. . . . . . . . 4% 35 Boulder Creek ... . . . . _. 39.42
Hrmscomh.. . . . . . . . . . 55. i 9
Hrush Creek ... . . . . . . . 4R.:39
Camptonville (n m r ). . 55.43
DeerCreek _____...... 56.32 Delta ___.._____._...._ 53.?S
rbownirville.. . . . . . . . . 4% 61
low, continued to recede. Tlie rains that fell between the
9th and 15th resulted in rapid rises in the Sacramento River betjween Red Bluff antl Sacramento city from the 19th to 31st and in the American, Feather, and Yuba
Rivers between the 10th and 15th. By the 23~1, how-
ever, a general fall was in progress.. Tlie wttrni rains that
began on the 24th and which continued until the close of
the month resulted in rapid rises in the Sacramento
River south of Red Blutf between the 25th a i d the 31st. During the last three days of the month heavy warm
rains fell in the Sierras from the headwaters of tlie hneri- can northward to the RfcCloucl River country, nelting
large amounts of snow tlint had rtccuniulatecl during the first three days of the qtorni and causing heavy freqhets in all of tlie eastern tributaries of the Sacramento tmtl
high sta es in the Sacramento itself hetween Colusa ant1
Knights anding. On the 29th advisory messages were sent to the river
observers a t Colusa nncl Iiiiights Lniiding atlvihing that all new levees be patrolled during the nest, two (l a p .
This advice was also given to the official in charge of the
north levee that protects the city of Sncranieiito from the American River.
The river rose rti d l y between Coliisn antl Sncramento
last-named date was a t tlangerously high stages at 1111 points between the t8wo places, Considerable water escaped into Yo10 Basin through 811
old break in the levee near the State Easement and from
the overflow of Cache and Putiih Creeks, antl by the close of the month this basin was )ractically covered with
water. There was also inuch l!mckwater inipoundecl in
the American Basin.
Sun J o a p i n watershed-The rains that occurretl in tliih watershed between the 9th and 15th of the month hml
little effect on the San Joaquin River itself south of the mouth of the Merced; elsewhere there wzts a general rise in all streams. Rain fell claily througliout the tlrtiinuge biihin
of the San Joaquin Valley from the 24th to the end of the
month, becoming torrential on the 30th ant1 31ht, causing freshets in arts of the Calnveras River and in I&rmon
San Joaquin, Tuolumne, Calaveras, the lower Rlokelunine and Cosunines Rivers ant1 in Mormon Slough between Bellota and Stockton. Tlie most notahle rise wtx\ that of
tlie Tuolumne at Jacksonville, where the river rose over 30
feet in less than 24 hours.
Flood warnings were tlisseiiiinatecl on the 30th to all
sections of the lower Mokelumiie nncl Cosiiiiiiies Rivers,
on the Calaveras between Jenny Lint1 ant1 Stockton, ant1
on the San Joaquin bet,ween Stockton nncl Rlentlotn, in- tlicating the approach of a clangerou.; flootl. By the
evening of the 31st the water was rnpitl1)- spretidinq over
a large area of country in the vicinity of the junction of
the Mokelumne antl Cosunines Rivers ant1 etwt antl north
of Stockton in the vicinity of Linden, and by niitlniglit i t has been estiniatetl that 20,000 wres of 1:tncl were over-
flowed. Emergency warnings were sent to tlie C'hiimber
of Coniiiierce a t Stockton for tlisseniiniition, iniIic:itiiig
grave danger to Stockton from backwater n n t l t o all qec-
city (luring the 30t 5 1 and 31st, and by miclnight on the
Slough on t i e P 25th and unprecedente(1ly high w-ater in the
I1ichc.s. I
3 2 .2
3S.U , 33.02 33.95
23. i 4 I
33.12 I
46.68
41.77
16.70
36.34
tions contiguous to Lat8hrop and San Joaquin Bridge
from the flood wave t81iat was then moving rapidly down
tlie San Jottqiiin River.
Fordrce Dam _._.___ -55.53
Migalia .._________._ 64.77 Mount R t . Helena.. .I 40.33
NOTES ON THE WEBTHER OF THE MONTH AT FRESNO, CAL.
By tV E BONNETT, Local Forecaster
January was warmer than noriiinl on every day exce t
7th to 9th, 12th to l-ltli, and from the 38th to the 30th,
both dntes inclusive. The absolute mininiurn for the
nioiitli occurred on the first day. A inasiniuni of 73' was
reached on the bth, it being the hi hest temperature €or
alniost equaled that of January, 1896, and it is esceeded
by but one other year, that of 1909. There were light
frosts on the 3d, 4th, 5th, 6th, 7th, and 19tli, heavy frosts on the 16th ~i i d IStli, and killing on the Ist, 3d, and
17th. The drought that prevailed from September, 1910, wits
broken by moderate rains on the 9th, and the reiiiaintler
of the nionth was very wet niaking this tlie wettest January of recortl sa\7e that of 1909, which by ti eculiar
in the last 24 years a t this station. The rainfall was
lieitviest on the 29th iincl 30th, but the ground was so dry
froiii tlie clroiight of previous iiionths that there was practically no run-off froin the valley lttnds. However,
the unusually liigli temperature caused rapid nieltilig of
the snows in the mountains, and streams were much
swollen during the closing days of the niontli, getting out
of their banks in places and doing some damage to bridges of wagon roads aiid milroads. No damage oc-
currecl in the iiiiiiiediate vicinity of Fresno, but there
was some inconvenience clue to disarrangement of train
schedules and to accumulated water in parts of the city having poor drainage. Agriculturally the month has
been very favorahle and grain and grass are reported in excellent condition. Tlie warm weather has advaiicetl
tlie fruit buds aiitl blossoming will occur earlier than is
usual. The nion tli was unusually free from foggy days, and t'he
iiieaii per ceiit of liuniidity for the month is the lowest of recortl, although this niontli was one of abnormally heavy rain. There was light fog on the lst, 15th, 16th, 17th,
19tli, :~nd 22d and dense fog on the lst, 15th, 17th, and
19th.
tlie first two, the departure beingmost marked from t f ie
this iiioiitli in 24 years. The nicint El y niem temperature
coincidence was both the wettest and warmest f anuary
Preciptat~on in fhc inouninins.
30.72
3R. 43
29.69 14.84 3. Ifi
38.M
21.65
39.52
32. 55
_........~
Stations, January January,
1 1909. ' 1 1911.
Head Dam ... . . . . . . . Helen mine.. . . . . . __ Kennett.. . . _.. . __. . Lavtonrille. .__. __. .
11.03
71. M
54.08
46.50