{
  "title": "EXTENDED WARNING: Geomagnetic K-index of 4 expected",
  "description": "EXTENDED WARNING: Geomagnetic K-index of 4 expected",
  "canonicalUrl": "https://darkskiesdirectory.com/nightly-news/2026-09-24/extended-warning-geomagnetic-k-index-of-4-expected",
  "breadcrumbs": [
    {
      "name": "Home",
      "url": "/"
    },
    {
      "name": "Nightly News",
      "url": "/nightly-news"
    },
    {
      "name": "EXTENDED WARNING: Geomagnetic K-index of 4 expected",
      "url": "/nightly-news/2026-09-24/extended-warning-geomagnetic-k-index-of-4-expected"
    }
  ],
  "updated": null,
  "data": {
    "id": "2026-09-24-extended-warning-geomagnetic-k-index-of-4-expected",
    "date": "2026-09-24",
    "slug": "extended-warning-geomagnetic-k-index-of-4-expected",
    "headline": "EXTENDED WARNING: Geomagnetic K-index of 4 expected",
    "editorial_note_md": "A geomagnetic K-index of 4 is expected, prompting an extended warning from the NOAA Space Weather Prediction Center. This is exciting news for sky-watchers, as it indicates a higher likelihood of visible aurora at high latitudes. Sky-watchers in Canada and Alaska may be able to see aurora, and should look for weak power grid fluctuations as a sign of the geomagnetic activity.",
    "source_name": "NOAA Space Weather Prediction Center (alerts/watches)",
    "source_url": "https://services.swpc.noaa.gov/products/alerts.json#K04W",
    "topics_json": "[\"aurora and space weather\"]",
    "published_at": "2026-09-24T23:01:09.335Z",
    "topics": [
      "aurora and space weather"
    ]
  },
  "jsonld": {
    "@context": "https://schema.org",
    "@graph": [
      {
        "@type": "Organization",
        "@id": "https://darkskiesdirectory.com/#organization",
        "name": "Dark Skies Directory",
        "url": "https://darkskiesdirectory.com"
      },
      {
        "@type": "WebSite",
        "@id": "https://darkskiesdirectory.com/#website",
        "url": "https://darkskiesdirectory.com",
        "name": "Dark Skies Directory",
        "publisher": {
          "@id": "https://darkskiesdirectory.com/#organization"
        }
      },
      {
        "@type": "BreadcrumbList",
        "itemListElement": [
          {
            "@type": "ListItem",
            "position": 1,
            "name": "Home",
            "item": "https://darkskiesdirectory.com/"
          },
          {
            "@type": "ListItem",
            "position": 2,
            "name": "Nightly News",
            "item": "https://darkskiesdirectory.com/nightly-news"
          },
          {
            "@type": "ListItem",
            "position": 3,
            "name": "EXTENDED WARNING: Geomagnetic K-index of 4 expected",
            "item": "https://darkskiesdirectory.com/nightly-news/2026-09-24/extended-warning-geomagnetic-k-index-of-4-expected"
          }
        ]
      },
      {
        "@type": "NewsArticle",
        "@id": "https://darkskiesdirectory.com/nightly-news/2026-09-24/extended-warning-geomagnetic-k-index-of-4-expected#news",
        "headline": "EXTENDED WARNING: Geomagnetic K-index of 4 expected",
        "datePublished": "2026-09-24",
        "author": {
          "@id": "https://darkskiesdirectory.com/#organization"
        },
        "publisher": {
          "@id": "https://darkskiesdirectory.com/#organization"
        },
        "citation": "https://services.swpc.noaa.gov/products/alerts.json#K04W",
        "isBasedOn": {
          "@type": "CreativeWork",
          "name": "NOAA Space Weather Prediction Center (alerts/watches)",
          "url": "https://services.swpc.noaa.gov/products/alerts.json#K04W"
        }
      }
    ]
  }
}