{"url_path":"/weather/alerts/2.49.0.1.840.0.c065f8fee7643c73c75d0dbb8fe9a7dc45151274.002.1","section_key":"alert","section_title":"Severe Thunderstorm Warning issued June 12 at 7:04PM EDT until June 12 at 7:30PM EDT by NWS Baltimore MD/Washington DC","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-06-12","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.c065f8fee7643c73c75d0dbb8fe9a7dc45151274.002.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Baltimore MD/Washington DC"},"word_count":236,"has_tables":false,"body_markdown":"# Severe Thunderstorm Warning: Severe Thunderstorm Warning issued June 12 at 7:04PM EDT until June 12 at 7:30PM EDT by NWS Baltimore MD/Washington DC\n\n**Severity:** Severe\n**Certainty:** Observed\n**Urgency:** Immediate\n**Areas:** Arlington, VA; Fairfax, VA; Prince William, VA; City of Fairfax, VA; City of Falls Church, VA\n**Issued by:** NWS Baltimore MD/Washington DC\n**Sent:** 2026-06-12T19:04:00-04:00\n**Effective:** 2026-06-12T19:04:00-04:00\n**Expires:** 2026-06-12T19:30:00-04:00\n\n## Description\nAt 704 PM EDT, a severe thunderstorm was located over Oakton, or near\nFairfax, moving southeast at 30 mph.\n\nHAZARD...70 mph wind gusts.\n\nSOURCE...A wind gust of 67 mph was observed at Dulles International\nAirport at 653 mph.\n\nIMPACT...Damaging winds will cause some trees and large branches to\nfall. This could injure those outdoors, as well as damage\nhomes and vehicles. Roadways may become blocked by downed\ntrees. Localized power outages are possible. Unsecured\nlight objects may become projectiles.\n\nLocations impacted include...\nCentreville, Reston, Annandale, Herndon, Fairfax, Vienna, Falls\nChurch, Mantua, Pimmit Hills, Mclean, Burke, Oakton, Sterling,\nChantilly, Tysons Corner, Wolf Trap, Merrifield, I66 and I495\nInterchange, West Springfield, and Fairfax Station.\n\n## Instructions\nFor your protection move to an interior room on the lowest floor of a\nbuilding.\n\nContinuous cloud to ground lightning is occurring with this storm.\nMove indoors immediately. Lightning is one of nature's leading\nkillers. Remember, if you can hear thunder, you are close enough to\nbe struck by lightning.\n\nTorrential rainfall is occurring with this storm, and may lead to\nflash flooding. Do not drive your vehicle through flooded roadways."}