E145 crew had altitude overshoot in stl class B airspace.

Attributes
ACN	480952
Time
Date	200007
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : stl.airport
State Reference	MO
Altitude	msl bound lower : 6000 msl bound upper : 6400
Environment
Flight Conditions	IMC
Weather Elements	Thunderstorm Turbulence
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : t75.tracon
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 65 flight time total : 10000 flight time type : 540
ASRS Report	480952
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial
Experience	flight time last 90 days : 95 flight time total : 3200 flight time type : 885
ASRS Report	480960
Events
Anomaly	altitude deviation : undershoot inflight encounter : weather inflight encounter other non adherence : clearance
Independent Detector	aircraft equipment : altitude alert other flight crewa other flight crewb
Resolutory Action	flight crew : returned to assigned altitude
Supplementary
Problem Areas	Weather Aircraft Flight Crew Human Performance
Primary Problem	Weather
Air Traffic Incident	Pilot Deviation

Narrative:

Climbing to 6000 ft, first officer overshot to 6400 ft and returned to 6000 ft. TCASII was clear. First officer says updraft was a factor. We were near convective activity. No ATC inquiry. I was adjusting radar when first officer climbed past 6000 ft. Supplemental information from acn 480960: during climb out from stl, we were experiencing turbulence as we were being vectored for the departure. There were cumulo nimbus's in the area. I overshot the assigned altitude and corrected as quickly as possible.

Original NASA ASRS Text

Title: E145 CREW HAD ALT OVERSHOOT IN STL CLASS B AIRSPACE.

Narrative: CLBING TO 6000 FT, FO OVERSHOT TO 6400 FT AND RETURNED TO 6000 FT. TCASII WAS CLR. FO SAYS UPDRAFT WAS A FACTOR. WE WERE NEAR CONVECTIVE ACTIVITY. NO ATC INQUIRY. I WAS ADJUSTING RADAR WHEN FO CLBED PAST 6000 FT. SUPPLEMENTAL INFO FROM ACN 480960: DURING CLBOUT FROM STL, WE WERE EXPERIENCING TURB AS WE WERE BEING VECTORED FOR THE DEP. THERE WERE CUMULO NIMBUS'S IN THE AREA. I OVERSHOT THE ASSIGNED ALT AND CORRECTED AS QUICKLY AS POSSIBLE.

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.