sentences:  During the next few hours under strengthening shear, Judy struggled to maintain itself.However, as it moved further to the south if came under a strengthening steering field which was being enhanced by a trough of low pressure to the west of the steering field which helped to neutralize the effect of the shear over the cyclone.Judy then intensified slightly further and reached its peak intensity of 85 km/h, (50 mph), with a peak pressure of 989 hPa late on December 25 whilst turning towards the south towards TCWC Wellington's area of responsibility.