{"url_path":"/weather/alerts/2.49.0.1.840.0.03e04d8e125f654d9b9bde512555415598c6a770.001.1","section_key":"alert","section_title":"Flood Advisory issued May 31 at 10:49AM MDT until June 1 at 12:00AM MDT by NWS Great Falls MT","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-05-31","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.03e04d8e125f654d9b9bde512555415598c6a770.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Great Falls MT"},"word_count":319,"has_tables":false,"body_markdown":"# Flood Advisory: Flood Advisory issued May 31 at 10:49AM MDT until June 1 at 12:00AM MDT by NWS Great Falls MT\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Cascade, MT; Glacier, MT; Lewis and Clark, MT; Pondera, MT; Teton, MT; Toole, MT\n**Issued by:** NWS Great Falls MT\n**Sent:** 2026-05-31T10:49:00-06:00\n**Effective:** 2026-05-31T10:49:00-06:00\n**Expires:** 2026-06-01T00:00:00-06:00\n\n## Description\n* WHAT...Minor flooding in areas of poor drainage and elevated\nstreamflows are expected.\n\n* WHERE...Portions of central, north central, and west central\nMontana, including the following counties, in central Montana,\nCascade. In north central Montana, Glacier, Pondera, Teton and\nToole. In west central Montana, Lewis and Clark.\n\n* WHEN...Until midnight MDT tonight.\n\n* IMPACTS...Minor flooding in urban and rural areas of poor\ndrainage. Some river and stream levels are elevated and will see\nadditional rises to around bankful.\n\n* ADDITIONAL DETAILS...\n- At 1022 AM MDT, Moderate to heavy rainfall accumulations of 1\nto 2 inches have occurred across the advisory area over the\nlast 24 hours, leading to elevated flow on some creeks and\nrivers and ponding of water in areas with poor drainage.\n- Additional rainfall amounts of 0.2 to 0.5 inches are expected\nat lower elevations through this evening with up to 1 inch of\nadditional rainfall across areas near GLacier National Park\nand the Little Belt and Highwood Mountains.\n- Some locations that may experience minor flooding from\nelevated stream flow include...\n\nSome creeks originating in the Highwood and Little Belt\nMountains.\n\nThe Marias and St. Mary Rivers and tributaries in Glacier\ncounty including Badger Creek, Two-medicine River and Cut\nBank Creek.\n\n- Additionally, the Sun river will remain at elevated levels\nand is forecast to remain just under bankful through Monday.\n- http://www.weather.gov/safety/flood\n\n## Instructions\nTurn around, don't drown when encountering flooded roads. Most flood\ndeaths occur in vehicles.\n\nPlease report observed flooding to local emergency services or law\nenforcement and request they pass this information to the National\nWeather Service when you can do so safely."}