Saturday July 5, 2008, 4:00 PM:

FRONT RANGE AIR QUALITY FORECAST:

Ozone levels are expected to climb into the Moderate range Saturday afternoon and evening and again on Sunday afternoon and evening. Unusually sensitive people should consider limiting prolonged outdoor exertion between the hours of 1 PM and 11 PM today and on Sunday.

Fine particulates are generally expected to be in the Good to Moderate range.

COLORADO SMOKE OUTLOOK:

Smoke from wildfires in Canada and the western U.S. may contribute to background haze in Colorado.

There will be isolated to scattered thunderstorms across parts of the state today. These thunderstorms could cause new wildfires. There could be areas of moderate to heavy smoke near these fires.

IF VISIBILITY IS LESS THAN 5 MILES IN SMOKE IN YOUR NEIGHBORHOOD DUE TO A WILDFIRE OR CONTROLLED BURN, SMOKE HAS REACHED LEVELS THAT ARE UNHEALTHY. If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and the elderly. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill.