Weather conditions triggered red flag warnings Tueaday in the northeast part of the United States as firefighters in California continued to battle a large wildfire that has burned over 20,000 acres.

Unusually dry weather, an abundance of ‘dry fuels’, low relative humidity and strong winds combine to create high risk of fire spread.

A Red Flag Warning​ is back in effect for much of New York, New Jersey and Connecticut, as the fire threat remains high.

A Red Flag Warning has been extended into Wednesday as firefighters across the Commonwealth continue to battle brush fires.

New Jersey has been experiencing a combination of dry forest grounds, dry air with relative humidity values and windy conditions. A Red Flag Warning meanswhen there are warm temperatures, very low humidity, and stronger winds in the forecast that combination can produce an increased risk of fire danger.

Massachusetts is under a red flag warning again on Tuesday as dozens of brush fires continue burning across the state.What is a red flag warning?The National Weather Service issued the red flag warning through 6 p.

A red flag warning is in place in Connecticut for Tuesday as wind gusts may reach 35 mph, the weather service says. The warning has been extended to Wednesday.

A new Red Flag Warning has been issued for Tuesday as firefighters across the Commonwealth continue to battle brush fires.