Reported by MET NORWAY 172 days ago.
It is the 3rd strongest of the 6 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
MET NORWAY reported: Det er 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.
An estimated 84,972 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 30, 2026 · score 43 · 3.3 km
- March 19, 2026 · score 39 · 4.3 km
How we know
One source: MET NORWAY. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 58 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 58% |
| Coordinates | 59.0562, 9.1328 |
| Nearest City | Porsgrunn (32 km) |
| Population Exposed | 85.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T14:52:01.356Z |
| 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.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 39/100 (Norway), based on data from met_norway. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.