Narrative:

Clearance: direct pmd 17000 (VMC). Visually saw buildups over pmd and north along ridge. We painted cells over pmd and asked and received clearance to deviate 20 degree left (north). Asked and received another 15 degree left at cells. ATC was hesitating on the deviation because of the edwards restr area. We skirted the north edge of the cell by 1 1/2 to 2 mi. At all times had contact with the ground. Picked up some rime ice, and then heavy rain. We then ascended 300 ft, autoplt on, and then started down with negative G's. Floated in seat for about 15 seconds. At the same time got an aural engine oil warning twice. Leveled off at 13700, called ATC, reassigned to 14000. Uneventful to psp. Checked with flight attendant after level off and everything ok.

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Original NASA ASRS Text

Title: COMMUTER ENCOUNTERS DOWNDRAFT IN PROX OF TSTM. ALT DEV.

Narrative: CLRNC: DIRECT PMD 17000 (VMC). VISUALLY SAW BUILDUPS OVER PMD AND N ALONG RIDGE. WE PAINTED CELLS OVER PMD AND ASKED AND RECEIVED CLRNC TO DEVIATE 20 DEG L (N). ASKED AND RECEIVED ANOTHER 15 DEG L AT CELLS. ATC WAS HESITATING ON THE DEV BECAUSE OF THE EDWARDS RESTR AREA. WE SKIRTED THE N EDGE OF THE CELL BY 1 1/2 TO 2 MI. AT ALL TIMES HAD CONTACT WITH THE GND. PICKED UP SOME RIME ICE, AND THEN HVY RAIN. WE THEN ASCENDED 300 FT, AUTOPLT ON, AND THEN STARTED DOWN WITH NEGATIVE G'S. FLOATED IN SEAT FOR ABOUT 15 SECONDS. AT THE SAME TIME GOT AN AURAL ENG OIL WARNING TWICE. LEVELED OFF AT 13700, CALLED ATC, REASSIGNED TO 14000. UNEVENTFUL TO PSP. CHKED WITH FLT ATTENDANT AFTER LEVEL OFF AND EVERYTHING OK.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.