sentences:  The slow weakening trend continued into August 27 as the eye became intermittent in the moderate-shear environment, which was once again affected by the outflow of Iris to the southwest.That evening, it dropped to a minimal hurricane with 75 mph (120 km/h) winds, which was later confirmed to have been the low point.Operationally, Humberto was downgraded to a tropical storm for a while on August 28, but was later confirmed to have been underestimated.