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<br />c: <br />0 <br />~ <br />.. <br />.c: <br />lJ) <br />E ::J <br />~ lJ) <br />~ <br />- E <br />.c: ~ <br />0> <br />'0; - <br />:I: .c: <br />I 0> <br />.. '., <br />E :I: <br />i= <br />CO 2 <br /><D <br /> <br />o <br />2500 CSR <br /> <br />(Q; E <br />- E <br />~:;; <br />.2 .~ <br />.., 0- <br />0._ <br />II::...J <br /> <br />7.0 <br />6.0 <br />E 5.0 <br />~-'" <br />.g -:: ~ 4.0 <br />a.s::. > <br />II:: .2' g\ 3.0 <br />;~~ <br />~ .:. ~ 2.0 <br />~ E .. <br />~ i= i) 1.0 <br /> <br />c: <br />.~- <br />.. - ~ <br />"0 o.s::. <br />>-...... <br />0.0. E <br />.!:: 'u E <br />"'''- <br />.t <br /> <br />144 <br /> <br />1.0 <br /> <br />0.5 <br /> <br />0.0 <br /> <br />0.0 <br />8 <br /> <br />6 <br />4 <br />2 <br />o <br /> <br />JOURNAL OF APPLIED METEOROLOGY <br /> <br />VOLUME 27 <br /> <br />7-8 FEB 1985 <br /> <br /> <br />(A) <br />SL <br /> <br />.07 <br /> <br />1.07 4.30 5;52 5.35 5.71 5.76 7.10 5.84 5.03 4.10 3.28 2.79 2.56 1.29 .65 ~I <br /> <br />~,l~ <br /> <br /> <br />(B) <br /> <br />D -+NoOata_ ~ f <br />...~_ ~8 of- 8 <br /> <br /> <br /> <br /> <br />~ ~~:::::~::~~~WL ~ <br /> <br />dBZ <br />010.19 <br />III 20.24 <br />.25.29 <br /> <br />(C) <br /> <br />Terrain <br /> <br /> <br />(D) <br /> <br />00 21 <br /> <br />18 <br /> <br />15 <br /> <br />12 <br /> <br />09 06 03 00 21 <br />TIM E (U TC ) <br /> <br />IB <br /> <br />15 <br /> <br />12 09 06 <br /> <br />03 00 <br /> <br />FIG. 2. Composite temporal analysis for the 7-8 February storm crossing the central Sierra Nevada (time increases to the left); from top <br />to bottom; (A) Il~ time-height from the Sheridan rawinsonde. Features noted, SL (stable layer), CF (cold front) and CS/HF (cold surge/ <br />humidity front), J (jet maxima), and scalloped line indicates cloud boundaries as estimated using relative humidity, satellite cloud top <br />temperatures and the Sheridan radar cloud tops. Computed 2500 condensate supply rate integrated from surface to 5 km over Sheridan is <br />shown at the time of the soundings. (B) Vertically integrated liquid water from the dual-channel microwave radiometer at Kingvale. (C) <br />Time-height radar reflectivity profile over Kingvale as determined by the Sheridan radar. Minimum detectable signal over Kingvale is 8 <br />dBZ. (0) Precipitation rate (mm h-') measured by a weighing type precipitation gauge at Kingvale. <br /> <br />a low-level wind maximum of25-30 m S-I. However, <br />this low-level jet began 12-15 h ahead of the passage <br />of any upper jet or frontal band. This so-called barrier <br /> <br />jet has been documented and its development described <br />in Parish (1982), Waight (1984), Smutz (1986), and <br />Marwitz (1987). <br />