{
  "schema_version": 1,
  "slug": "washington-dc-extreme-heat-wave",
  "title": "Washington DC Extreme HEAT WAVE",
  "canonical_url": "https://signalmeaning.com/signals/washington-dc-extreme-heat-wave/",
  "json_url": "https://signalmeaning.com/data/signals/washington-dc-extreme-heat-wave.json",
  "summary": "Extreme heat dome causing event cancellations, public safety impacts, and widespread regional coverage",
  "why_now": "The event coincides with holiday scheduling (Fourth of July) and an active heat dome, concentrating coverage and prompting near-term cancellations and advisories.",
  "evidence_summary": "- BBC reports Fourth of July events in DC and Philadelphia canceled due to brutal heat - The Atlantic runs a feature framing the heat as an acute regional crisis ('Hell Arrives in Washington') - The Weather Channel documents a persistent extreme heat dome affecting NYC, Philadelphia, Boston, and DC into the holiday weekend",
  "caveat": "Low uncertainty that extreme heat is occurring; uncertainty remains around duration, exact geographic severity pockets, and downstream outage/health outcomes until official reports update.",
  "signal_type": "Local News / Civic Event",
  "score": 90.0,
  "score_field": "adjusted_score",
  "state": "PUBLISH",
  "sources": [
    {
      "label": "‘Extremely high’ rates of heat-related ER visits, CDC says, with more coming Saturday",
      "source": "CNN",
      "url": "https://www.cnn.com/2026/07/03/weather/heat-wave-nyc-dc-forecast-climate"
    }
  ],
  "provenance": {
    "record_id": "202607041650_signal_Quality-0-washington-dc-extreme-heat-wave",
    "batch_id": "202607041650",
    "input_files": {
      "Quality": "202607041650_signal_Quality.txt",
      "Musk": "202607041641_signal_Musk.txt",
      "Kurzweil": "202607041632_signal_Kurzweil.txt",
      "Jobs": "202607041621_signal_Jobs.txt",
      "Buffett": "202607041610_signal_Buffett.txt",
      "Bezos": "202607041600_signal_Bezos.txt"
    }
  }
}