{"url_path":"/weather/alerts/2.49.0.1.840.0.d42c204c09c1d2a59bd2185384a827fa4ccb33aa.001.1","section_key":"alert","section_title":"Red Flag Warning issued May 13 at 7:06PM MDT until May 14 at 9:00PM MDT by NWS Rapid City SD","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-05-13","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.d42c204c09c1d2a59bd2185384a827fa4ccb33aa.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Rapid City SD"},"word_count":327,"has_tables":false,"body_markdown":"# Red Flag Warning: Red Flag Warning issued May 13 at 7:06PM MDT until May 14 at 9:00PM MDT by NWS Rapid City SD\n\n**Severity:** Severe\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Fall River County Area; Northern Foot Hills; Eastern Foot Hills; Custer County Plains; Pine Ridge Area; Butte County Area; West Central Plains; Ziebach County; Haakon County Area; Badlands Area; Bennett County Area\n**Issued by:** NWS Rapid City SD\n**Sent:** 2026-05-13T19:06:00-06:00\n**Effective:** 2026-05-13T19:06:00-06:00\n**Expires:** 2026-05-14T06:00:00-06:00\n\n## Description\n...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THURSDAY DUE TO\nGUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FALL RIVER COUNTY AREA,\nNORTHERN FOOT HILLS, EASTERN FOOT HILLS, CUSTER COUNTY PLAINS, PINE\nRIDGE AREA, BUTTE COUNTY AREA, WEST CENTRAL PLAINS, ZIEBACH COUNTY,\nHAAKON COUNTY AREA, BADLANDS AREA, AND BENNETT COUNTY AREA...\n\n.Warm, very dry, and breezy weather will support critical fire\nweather conditions over much of the western SD Plains for the\nremainder of today. Expect southeast winds of 20 to 30 mph with gusts\nup to 45 mph, with RH as low as 10 percent. A trough will move\nthrough the area early Thursday morning, with winds shifting\nnorthwest and increasing to 25 to 35 mph with gusts up to 55 mph.\nAfter poor recovery, RH's will fall to the teens or lower again on\nThursday afternoon with gusty northwest winds.\n\n* AFFECTED AREA...Fire Weather Zones 322, 323, 324, 325, 326, 327,\n329, 330, 331, 332, and 333.\n\n* TIMING...Until 9 PM MDT Thursday.\n\n* WINDS...For Wednesday, southeast winds 20 to 30 mph with gusts up\nto 45 mph. For Thursday, northwest winds 25 to 35 mph with gusts up\nto 55 mph.\n\n* RELATIVE HUMIDITY...Relative Humidity as low as 10 percent in the\nafternoon today and Thursday.\n\n* IMPACTS...Any fires that develop will spread rapidly. Outdoor\nburning is not recommended.\n\n## Instructions\nA Red Flag Warning means that critical fire weather conditions are\neither occurring now, or will shortly. A combination of strong winds,\nlow relative humidity, and warm temperatures can contribute to\nextreme fire behavior."}