BREEZY AND DRY OVER NORTH CENTRAL COLORADO FRIDAY. . WINDY CONDITIONS AND LOW RELATIVE HUMIDITY WILL CAUSE WIDESPREAD CRITICAL FIRE WEATHER CONDITIONS SATURDAY ACROSS NORTHERN COLORADO. .Gusty west-southwest winds develop over the higher terrain Friday afternoon. The strongest winds will be found across Jackson County and far northwest Larimer County with gusts to 30 mph. In addition, relative humidities are expected to fall into the lower teens. On Saturday, gusty west to northwest winds spread across much of north central and northeast Colorado. Temperatures will be very warm (possibly record breaking), leading to relative humidities of 10 to 14 percent. . FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF JACKSON COUNTY AND NORTHWEST LARIMER COUNTY. The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM to 7 PM MDT Friday. A Fire Weather Watch has also been issued. This Fire Weather Watch for wind and low relative humidity is in effect from Saturday morning through Saturday evening. * AFFECTED AREA. Fire Weather Zones 211 and 218. * TIMING. For the Red Flag Warning, from 11 AM to 7 PM MDT Friday. For the Fire Weather Watch, from Saturday morning through Saturday evening. * WINDS. West 10 to 20 mph with gusts up to 30 mph. On Saturday, it will be windier with west winds of 20 to 35 mph with gusts up to 50 mph. * RELATIVE HUMIDITY. As low as 10 percent. * IMPACTS. Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.