Is, gult nivå, Deler av Østlandet, 2026-02-25T07:00:00+00:00, 2026-02-25T15:00:00+00:00
Fra onsdag morgen er det fare for is på grunn av overgang til mildvær og lokalt underkjølt regn. Regn kan fryse til is på vegbanen, på kjøretøy og på andre gjenstander. Nedbør starter som snø og går etter hvert over til regn. Faren starter først i sør langs kysten, og varer lengst i indre strøk.
Geographic Context
This weather event occurred near Porsgrunn (approximately 31 km away) in Norway, an area that experiences a range of natural hazards. An estimated 85.0K people live within 50 km of the event location, placing this in the "significant" population impact tier.
Event Assessment
This event is a weather event classified as medium severity. Calamity.live has classified it as "medium" severity with a severity value of 45. The computed Calamity Score is 39 out of 100, suggesting contained impact at this time. The primary scoring components are: historical (80), population (55), intensity (35). Data for this event was sourced from met_norway, one of the 250 scientific monitoring sources aggregated by Calamity.live.
Regional Monitoring Context
Norway has a documented history of weather events. Monitoring for weather events in the region relies on a combination of ground-based sensors, satellite remote sensing, and official reporting from national agencies. The frequency and severity of such events are tracked over time to support risk assessment and emergency preparedness.
Event Data
| Type | Weather |
| Severity | medium |
| Severity Value | 45 |
| Calamity Score | 39 / 100 |
| Confidence | 64% |
| Coordinates | 59.0212, 9.1636 |
| Nearest City | Porsgrunn (31 km) |
| Population Exposed | 85.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-19T17:21:50.687Z |
| Source | https://www.met.no/vaer-og-klima/ekstremvaervarsler-og-andre-farevarsler/vaerfenomener-som-kan-gi-farevarsel-fra-met/is |
Score Breakdown
Technical Details
| Event | ice |
| Certainty | Likely |
| CapSeverity | Moderate |
| AreaDesc | Deler av Østlandet |
| AwarenessType | 2; snow-ice |
| Instruction | Lokalt vanskelige kjøreforhold: Beregn ekstra tid til transport og kjøring. Bruk riktige dekk og kjør etter forholdene. Vurder bruk av brodder eller piggsko: Vær oppmerksom på at isen kan være vanskelig å se. Følg utviklingen: Følg med på oppdaterte farevarsler. Sjekk veimeldinger på vegvesen.no/trafikk. |
| RiskMatrixColor | Yellow |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Calamity.live data shows a weather event with CalamityScore 39/100, near Porsgrunn (Norway), based on data from met_norway. Source: Calamity.live, a platform aggregating real-time data from 207 scientific monitoring sources.