Flight: 2004_01_29 On board: Kevin Fagerstrom, Sarah Walters, Dave Leon, Larry Oolman Take-off: 1337 UTC - Landing: 1557 UTC -total duration 2 hrs 20 min Author: Sarah 1. Synopsis: Time: 12:53 Sky Cover Temp(C) DewPnt (C) Wind Spd(m/s) Wind Dir Racine: mostly cloudy -4 -16 9 NW Sheboygan: high clouds -10 -19 13 W Green Bay: high clouds -12 -21 8 W Green Bay Sounding: Stable, very cold conditions up to 650mb Winds through all layers throughout flight from 280-345 (mostly from 280-300) at 9-18 (mostly 11-13) (units of hwspd unknown m/s or knots?) Cloud free area larger than previous flights on 01/18, 01/19, and 01/22. Ice extending off shore much farther than on 01/22. Lake surface smoother than 01/22. Very little steam rising from lake surface throughout flight. Most prominent on west side of lake. Cloud tops around 2800-3000ft from Racine to point B. Cloud tops increasing heights from South to North. Northern end of track A cloud tops around 3500-4000ft RALT2 not working until well into flight On western edge of clouds very few breaks visible. Along tracks A and B breaks become more regular. Deck of altostratus above. Dissipating to the north. After 8th pass (5th pass on track A, A to A1) no roll organization visible in radar data. Decided to do one more in cloud pass to focus on structure. When no roll structure was visible decided to head back to Racine. Radar crash ~15:27 Restart computer component Flight Tracks: 13:37-13:52 UTC: Racine to point B: up to 4000 ft MSL 13:52-13:59: Descend from B to B1 14:00-14:08: B1 to B sounding from ztrue 923 (~1100 MSL) climbing to 6000ft MSL at 500ft/min 14:09-14:12: B to A @6000ft MSL descending to 5000ft RALT2 working (WCR in up/down) 14:12-14:19: A to A1 @5000ft MSL (ztrue = 4553) (WCR in VPDD) 14:23-14:33: A1 to A @5000ft MSL (ztrue=4545) (WCR in VPDD) 14:34-14:42: A to A1 @2800ft MSL (ztrue=2543) (WCR in HPDD) 14:45-14:53: A1 to A @1500ft MSL (ztrue=1378) (WCR in up/down) 14:55-15:04: A to A1 @1200ft MSL (ztrue=1041) (WCR in up side slant) 15:06-15:15: A1 to A sounding from 1100ft MSL climbing to 6000ft MSL at 500ft/min. Cloud top around 4100ft MSL 15:17-15:26: A to A1 @2800ft MSL (WCR in HPDD) No roll structure visible in data, climb back up to 6000ft MSL 15:29-15:36: A1 to A @6000ft MSL (WCR in up/down) 15:36-15:57: A to Racine 15:57: Land