The causes of encephalopathy are both numerous and varied. Some examples of causes of encephalopathy include: infectious (bacteria, viruses, parasites, or prions), anoxic (lack of oxygen to the brain, including traumatic causes), alcoholic (alcohol toxicity), hepatic (for example, liver failure or liver cancer), uremic (renal or kidney failure),
It is often seen 12 to 18 hours in advance of an unsettled weather system. Cirrocumulus clouds look like many small tufts of cotton, rippled sand or even the scales of a fish (hence the term âmackerel skyâ). Middle clouds: Altostratus, altocumulus and nimbostratus clouds are typically found between 6,000 and 20,000 feet above the ground. Altostratus resembles a smooth gray sheet across the sky. Sometimes the sun shines through the layer as a diffuse ball as if you were looking at it through a pane of frosted glass.
Cirrus clouds are a high-level cloud (above 20,000 ft.), and they are made of icy crystals. These wispy, delicate-looking clouds arrive in advance of frontal systems, so they indicate the weather is about to change.