This regional satellite map depicts the water vapor concentration over the region at the UTC time depicted at the upper left of the map (CST = UTC - 6 hours; CDT = UTC - 5 hours). With respect to fire danger, this map is useful for depicting areas of very low water vapor content (orange and red colors) which can sometimes translate to very low relative humidity at the surface, especially during the daytime with convective mixing, leading to high fire danger. This map is typically updated every 15 minutes.