Avvisi meteorologici, Evergreen

Red Flag Warning issued June 17 at 11:26AM MDT until June 17 at 8:00PM MDT by NWS Rapid City SD ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR SOUTHERN BLACK HILLS, FALL RIVER COUNTY AREA, CUSTER COUNTY PLAINS, PINE RIDGE AREA, BADLANDS AREA, BENNETT COUNTY AREA, SOUTHERN CAMPBELL, AND WESTON COUNTY PLAINS... .A cold front moved through early this morning. Behind the cold front, strong northwest winds from 25 to 35 mph with gusts up to 55 mph have been reported. Minimum relative humidity values will dip as low as 18 percent, which is higher than normal thresholds. However, the strong winds will make up the difference as well as antecedent D2 to D3 drought and very dry weather over the past 1-2 weeks. Thus, critical fire weather conditions are expected for parts of northeastern Wyoming and southwestern South Dakota late this morning through the early evening hours. * AFFECTED AREA...Fire Weather Zones 315, 317, 321, 322, 325, 326, 332, and 333. * TIMING...Until 8 PM MDT this evening. * WINDS...Northwest winds 25 to 35 mph with gusts from 40 to 55 mph. * RELATIVE HUMIDITY...Relative Humidity as low as 18 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended. 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.