‘Weather forecast’ for around the time 299 million years ago when the Haffield Breccia was forming.

Extreme unbroken heat (think Death Valley of present time). Occasional violent rain storms form over higher ground, resulting in flash floods running over the plain carrying sand, gravel, even boulders, The pale blue blobs suggest playas (derived from Spanish for beach or shore, but in this context means a lake which dries up), which may provide water to allow small groups of conifer type trees to survive.