Avisos

Wind Advisory issued September 29 at 12:52AM MDT until September 30 at 12:00PM MDT by NWS Rapid City SD* WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mphexpected this evening, shifting to the northwest after midnight.* WHERE...Portions of northwestern, south central, and southwesternSouth Dakota.* WHEN...From 8 PM MDT /9 PM CDT/ this evening to noon MDT /1 PMCDT/ Monday.* IMPACTS...Sudden wind gusts can cause drivers to lose control,especially in lightweight or high profile vehicles. Strong windscan cause blowing dust, reduced visibility, and flying debris.Winds this strong can make driving difficult, especially for highprofile vehicles. Use extra caution.

National Weather Service

Red Flag Warning issued September 29 at 1:07AM MDT until September 30 at 8:00PM MDT by NWS Rapid City SD...CRITICAL FIRE WEATHER CONDITIONS TODAY THROUGH MONDAY WITHGUSTY WINDS AND LOW RELATIVE HUMIDITY ACROSS NORTHEAST WYOMING ANDWESTERN SOUTH DAKOTA....Gusty south to southwest winds will develop this afternoon,especially over western South Dakota where winds will gust over 40mph. Further west over the Black Hills area and northeastWyoming, winds will not be as strong, but deeper mixing willallow for frequent gusts to 30 mph. RH will drop 15 percent orbelow this afternoon, which will result in critical fire weatherconditions. Poor RH recovery is expected tonight. A cold frontwill then cross the region tonight, supporting gusty northwestwinds through Monday. Portions of western South Dakota will seegusts of over 50 mph. RH will fall to below 20 percent Monday,especially over southwest to south central South Dakota,supporting continued critical fire weather conditions.* AFFECTED AREA...Fire Weather Zones 314 Northern Campbell, 315Southern Campbell, 316 Crook County Plains, 317 Weston CountyPlains, 320 Central Black Hills, 321 Southern Black Hills and322 Fall River County Area.* WINDS...Southwest 15 to 25 mph with gusts up to 30 mph today,shifting northwest and increasing to 20 to 30 mph with gusts to45 mph late this evening into Monday.* RELATIVE HUMIDITY...As low as 8 percent.* IMPACTS...The combination of gusty winds and low relativehumidity would produce critical fire weather conditions.A Red Flag Warning means that critical fire weather conditionsare either occurring now, or will shortly. A combination ofstrong winds, low relative humidity, and warm temperatures cancontribute to extreme fire behavior.

National Weather Service