A red flag warning means critical fire weather conditions are either occurring now, or will shortly. The combination of conditions as mentioned above "results in an increased risk for a wildland fire or rapid-fire growth if an incident were to occur," according to the International Association of Fire Chiefs.

Another cold front has arrived in Palm Beach County. When will it feel the coldest this week? Plus cold-weather shelters to open.

Through Saturday most of Florida has felt below normal average temperatures for February but the winter season beginning Dec. 1 has been near normal.

For your afternoon, temps will climb enough to reach or exceed 60 degrees in most parts of Central Florida. Skies will remain clear because we’re utterly dry no matter what level of our atmosphere you look at.

But temperatures won't stay that cold for as long as they did in early February. That cold snap prompted the Florida Fish and Wildlife Conservation Commission to issue an executive order allowing residents to drop off cold-stunned iguanas. Thousands of the invasive reptiles were collected.

An "unseasonably cool and dry" airmass is forecast to arrive mid to late Sunday (Feb. 22) and into early next week. Expect temperatures "much below normal" Monday and Tuesday, with a inland freeze/frost possible Monday night (Feb. 23)."

Cold weather shelters will be available in Central Florida this week for residents without heat or housing as temperatures drop.

That’s cold enough to make iguanas appear frozen and fall from trees. Iguanas become cold-stunned when temperatures reach about 40 to 50 degrees, but can die if there's a freeze or if the cold stays too long.

On Monday at 9:50 a.m. the National Weather Service released a red flag warning valid between 11 a.m. and 6 p.m. for Coffee, Dale, Henry, Geneva and Houston counties.