SAN DIEGO (FOX 5/KUSI) -- A Red Flag Warning went into effect at 4 a.m. Wednesday for portions of San Diego County as Santa Ana winds began to peak. The National Weather Service issues this type of warning when conditions are expected to create an increased risk for fire danger. San Diego’s inland valleys, mountains and deserts along the eastern mountain slopes are expected to experience wind speeds anywhere from 25 to 35 mph with individual gusts of up to 55 mph during this Santa Ana event. RELATED: What is a Red Flag Warning and why is it important? The National Service released a Wind Gust Report at 9:30 a.m. Wednesday morning, showing which areas in the region have felt the highest winds since Tuesday evening. Here's a breakdown of those numbers: San Diego County mountains LocationWind speedTime recordedDateElevation Buckman Springs60 mph2:30 a.m.01/08/253,252 feetCrestwood59 mph2:10 a.m.01/08/254,087 feetSill Hill59 mph2:30 a.m.01/08/253,556 feetBoulder Creek56 mph1:40 a.m. 01/08/253,706 feetLa Posta55 mph2:50 a.m.01/08/254,000 feet(National Weather Service report) LIST: San Diego County communities under or at risk of power shutoffs San Diego County inland valleys LocationWind speedTime recordedDateElevationRancho Heights68 mph1 a.m.01/08/252,195 feetHauser Mountain67 mph7:50 a.m.01/08/253,188 feetAlpine51 mph5:52 a.m.01/08/252,796 feetHellhole Canyon51 mph12 a.m.01/08/252,000 feetPower Ranch47 mph9:20 a.m.01/08/251,601 feet The Red Flag Warning will remain in place until 6 p.m. Thursday, though another round of Santa Ana winds is expected to closely follow. This could prompt an extended warning.