Fears of a collapse, the weather and the amount of fuel inside a Brooklyn warehouse are all contributing to the fire that continued to burn one day after it was sparked. NY1's Michael Herzenberg filed this report.

New Yorks bravest  bombarded a warehouse with water for well more than 24 hours from very direction—on land and on the east river.

"It's crazy. Look at it. There's a building burnt down. It's wild," said one woman nearby.

Paper fueled the blaze and smoke filled the sky, obscuring part of Manhattan's skyline for a second day.  

The city storage warehouse packed with city and hospital documents has proven tough to extinguish.  

"It's probably a real deep fire in there. It's going to take them a few days to get through it because it was still burning big last night," said another passerby.

According to sources, another reason for the slow burn is that firefighters are not being sent into the building because of concerns of a collapse. 

Strong winds fanned the flames Saturday . The fire started around 6:30 a.m. in the morning, and ice made even walking treacherous for first responders.  

"The cold can be painful. It's windy. It's smokey. You have to watch out for ice hazards. That's why we're trying to keep them in three-hour shifts. Especially, the firefighters in the tower ladders are extremely, extremely exposed," said FDNY Chief James Leonard.

The department of health warned people living near Kent Avenue and 11th Street to stay indoors to avoid the smoke and soot, which created poor air quality. 

Jason Coatney is working near the scene painting a mural just a few blocks from the fire.  

"Smoke was all the way in Bushwick. People were texting me," Coatney said.

Ashes stuck to his art and fell in his paint buckets. Now, it speckles snow throughout the neighborhood. 

"It's like an apocalypse. It's like freezing cold, yet there's just like 20-foot flames shooting out of a roof like a block away," said Coatney. "Today's much better. The wind's down."

Firefighters will continue to monitor the situation even after the blaze is extinguished for the next few weeks. Residents will continue to find burnt paper like this in the neighborhood.

This is a medical document that blew out of the warehouse.

The cause of the fire has not yet been determined.