HONOLULU (KHON2) -- The National Weather Service in Honolulu is warning of increased brushfire risk on Friday from 10a to 2p. The Red flag warning (fire weather warning) does not forecast brushfires but intended to let the public aware of the higher risk of fires. ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM HST FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR LEEWARD AREAS... The National Weather Service in Honolulu has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM to 6 PM HST Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Leeward portions of all Hawaiian Islands. * TIMING...From 10 AM to 6 PM HST Friday. * WINDS...East 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 40 to 45 percent. * IMPACTS...A combination of strong winds, low relative humidity, and dry fuels can contribute to extreme fire behavior. Any fires that develop will likely spread rapidly. A Red Flag Warning does not predict new fire starts. PRECAUTIONARY/PREPAREDNESS ACTIONS... Outdoor burning is not recommended. Heat from vehicle exhaust systems can ignite dry grass. Park cars on areas that are paved or where vegetation is trimmed and cleared. High winds contribute to wildfire hazard. Delay activities that could throw off sparks until the wind dies down. A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. A Red Flag Warning does not predict new fire starts.