HALEAKALA NATIONAL PARK, Maui — Park rangers are advising visitors to stay away from Haleakala National Park today if there is a replay of conditions that pounded the area yesterday.

Gusts of 70 mph blasted park headquarters at the 7,000-foot level at midday before conditions calmed later in the day. Ice and granules of hail also were reported.

"I haven't seen anything like this before," said longtime park employee Elizabeth Havelin. "It is truly wild up there."

The 10,000-foot summit area stayed open but the visitor center at the rim of the crater was closed after wind and rain knocked out power to the facility Sunday afternoon. With no electricity, heating and restrooms at the visitor center were not functioning.

Electricity at the summit was restored at 4:20 p.m. yesterday.

Park ranger Dominic Cardea said additional storms are predicted over the next two days. The visitor center will open at dawn today unless ice forces officials to close the road.

"To the extent possible, we will serve visitors who wish to experience the raw power of nature. However, we will not encourage them if conditions are dangerous," he said.

Visitors should dress as if they are visiting Denali National Park in Alaska and not Hawai'i, Cardea said.