"Conditions will remain ripe for developing wildfires through at least Saturday thanks to a stiff northwest breeze and low relative humidity," the NWS said.

The National Weather Service has extended a Red Flag Warning for leeward areas of all island through Saturday afternoon. The warning remains in effect until 4 p.m. due to a combination of dry fuels, low relative humidity and strong trade winds. This mix poses a threat for critical fire weather.

Red flag warnings are usually issued during the spring and fall when grass is dry and winds are high. Here's a guide on what to do during one.

The National Weather Service has issued a red flag warning for most of the southern half of New Hampshire for Friday.

it's a weather alert day with high winds and dry conditions. our weather meterologist pete caggiano tells us what that means for our islands and how we can stay safe