This resulted in Causation over a thousand arrests Arrest , and , as the jails and holding Defending areas filled Filling with arrested Arrest students , the Birmingham Police Department , led by Eugene `` Bull '' Connor , used Using high-pressure water hoses and police attack dogs on the children and adult bystanders .

The engine room was long , housing two high-pressure engines .

This allowed the partly molten , high-pressure gas- and steam-rich rock in the volcano to suddenly explode northwards toward Spirit Lake in a hot mix of lava and pulverized Destroying older rock , overtaking Motion the avalanching face .

A high-pressure area south of Jasmine later steered Change the weakening Cause_change_of_strength cyclone Catastrophe to the northeast on 12 February .

Cindy turned Becoming westward because of a high-pressure area positioned to its north , and further intensified Cause_change_of_strength into a weak hurricane off the coast of the Carolinas on July 8 .

It occurred Presence following the passage of a strong cold front , in combination Cause_to_amalgamate with a high-pressure area situated over the Mississippi River Valley .