Spotting is difficult to control. Escaped fire continues to burn through the night and into the next day. Burns leave excessive site damage. Direct attack is generally not effective due to increased intensity and spotting. Extreme intensities add to the control efforts.
Some nighttime activity can be extreme, dependent on the fuels available.
Fire personnel should expect and prepare for the previous day's fire to escape the next day during the peak burning period. Fire behavior is still predictable but tends to be underpredicted, since extreme intensity levels caused by the heavier fuel complexes might be overlooked. Extensive mop-up is critical to fire suppression. Increased need for fire suppression personnel and equipment can be expected. All ephemeral drains and intermittent drains are dry.