A B757 captain reported that an altitude excursion occurred in mia's airspace due to turbulence.

Attributes
ACN	599075
Time
Date	200311
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : mia.tracon
State Reference	FL
Altitude	msl bound lower : 16000 msl bound upper : 16450
Environment
Weather Elements	Thunderstorm Turbulence
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mia.tracon
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : n/s
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	599075
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	altitude deviation : excursion from assigned altitude inflight encounter : turbulence inflight encounter : weather non adherence : far non adherence : company policies non adherence : clearance other anomaly
Independent Detector	aircraft equipment : altitude alert other flight crewa
Resolutory Action	flight crew : exited adverse environment flight crew : regained aircraft control flight crew : returned to assigned altitude
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance Weather Environmental Factor
Primary Problem	Weather
Air Traffic Incident	Pilot Deviation

Narrative:

A few mins after takeoff after requesting turns to avoid WX, departure control requested that we turn back towards the published SID. In attempts to accommodate departure control needs, aircraft encountered small areas of moderate turbulence. Autoplt was selected off. Assigned altitude was 16000 ft. Moderate turbulence created momentary altitude excursions of 450 ft high. Corrections were immediately applied towards 16000 ft. Aircraft exited areas of turbulence and autoplt was reengaged at assigned altitude.

Original NASA ASRS Text

Title: A B757 CAPT RPTED THAT AN ALT EXCURSION OCCURRED IN MIA'S AIRSPACE DUE TO TURB.

Narrative: A FEW MINS AFTER TKOF AFTER REQUESTING TURNS TO AVOID WX, DEP CTL REQUESTED THAT WE TURN BACK TOWARDS THE PUBLISHED SID. IN ATTEMPTS TO ACCOMMODATE DEP CTL NEEDS, ACFT ENCOUNTERED SMALL AREAS OF MODERATE TURB. AUTOPLT WAS SELECTED OFF. ASSIGNED ALT WAS 16000 FT. MODERATE TURB CREATED MOMENTARY ALT EXCURSIONS OF 450 FT HIGH. CORRECTIONS WERE IMMEDIATELY APPLIED TOWARDS 16000 FT. ACFT EXITED AREAS OF TURB AND AUTOPLT WAS REENGAGED AT ASSIGNED ALT.

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.