TWIN FALLS, Idaho (KLIX) Forecasters have issued a Red Flag warning for most of southern Idaho as thunderstorms are expected to increase the fire danger for the area. The National Weather Service in Boise issued the warning, saying fire conditions are critical. Isolated showers and thunderstorms are expected tonight and continue on to mid-week. Some heavy rains are expected with these scattered storms. Temperatures are expected to drop to the mid-80's, according to the NWS. The Red Flag Warning goes into effect from midday to midnight. Wind gust from these storms could get up to 50 mph. Read more on the Red Flag Warning here.