{"url_path":"/weather/alerts/2.49.0.1.840.0.4d3b0261c52411fb6830e5ce695ca5af25b3f2cd.001.1","section_key":"alert","section_title":"Red Flag Warning issued September 12 at 9:51AM PDT until September 14 at 5:00PM PDT by NWS Sacramento CA","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-09-12","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.4d3b0261c52411fb6830e5ce695ca5af25b3f2cd.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Sacramento CA"},"word_count":233,"has_tables":false,"body_markdown":"# Red Flag Warning: Red Flag Warning issued September 12 at 9:51AM PDT until September 14 at 5:00PM PDT by NWS Sacramento CA\n\n**Severity:** Severe\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** South-Central Shasta County Including Redding Metro; Sierra Nevada of Tehama-Butte-Plumas Counties Between 1000-3000 ft; Northern Sacramento Valley in Tehama County; Glenn and Colusa County Coast Range Above 3000 ft; Central Glenn County Including Interstate 5; Eastern Glenn County; Butte County Below 1000 ft; Western Glenn and Colusa County Foothills Between 1000-3000 ft; Central Colusa County Including Interstate 5; Eastern Colusa County; Sutter and Yuba Counties Below 1000 ft\n**Issued by:** NWS Sacramento CA\n**Sent:** 2026-09-12T09:51:00-07:00\n**Effective:** 2026-09-12T09:51:00-07:00\n**Expires:** 2026-09-13T17:15:00-07:00\n\n## Description\n...RED FLAG WARNING NOW IN EFFECT UNTIL 5 PM PDT MONDAY DUE TO WIND\nAND LOW RELATIVE HUMIDITY FOR A PORTION OF NORTHERN CALIFORNIA...\n\n* AFFECTED AREA...Portions of the Sacramento Valley and adjacent\nfoothills.\n\n* TIMING...Until 5 PM PDT Monday.\n\n* WINDS...Gusts 20 to 35 mph. South to southwest winds through\nSaturday afternoon. Winds shift out of the north during the day on\nSunday, becoming gusty by the evening and through Monday morning.\n\n* RELATIVE HUMIDITY...Relative Humidity between 10 to 25 percent.\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."}