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.

High pressure will keep us very dry tonight, but high clouds from a storm system to our west will linger and even thicken up. Partly to mostly cloudy skies should help keep temperatures in the 20s for Friday morning, but if they thin out enough, we could see more teens. Breezes remain light.

A Red Flag Warning remains in place Tuesday as brush fires continue to smolder across Massachusetts. Firefighters are on high alert and at the ready to respond to any flare-ups as windy, bone-dry conditions persist.