Preprints
https://doi.org/10.5194/egusphere-2026-1457
https://doi.org/10.5194/egusphere-2026-1457
24 Mar 2026
 | 24 Mar 2026
Status: this preprint is open for discussion and under review for Natural Hazards and Earth System Sciences (NHESS).

The Cold Spell That Never Happened: Climatological Assessment of the Winter 2025/26 Cold and Snowfall Episodes in Bucharest and Their Disproportionate Media Representation

Monica Ionita, Bogdan Antonescu, and Viorica Nagavciuc

Abstract. The winter of 2025/26 in Romania generated intense media coverage characterizing cold and snowfall episodes in Bucharest and south-eastern Romania as historically exceptional. Here, we evaluate this characterization against a multi-source climatological analysis spanning up to 148 years of instrumental records. Using daily minimum temperature data from Bucuresti Filaret station (1879–2026) and monthly mean temperatures from 65 stations across Romania, we show that both January and February 2026 were anomalously warm relative to the 1971–2000 baseline (country-mean anomalies of +2.3 °C and +2.2 °C, respectively), with positive temperature anomalies recorded at nearly all 65 stations. Cold spell detection, using the 10th percentile threshold of the daily minimum temperature (TN10p), confirmed zero cold spell days throughout the winter 2025/26. The principal high-impact event, the 18th of February 2026 blizzard, was driven by a classical Mediterranean cyclone characterized by an upper-level potential vorticity streamer and an anomalously high integrated water vapor transport directed towards south-eastern Romania. Content analysis of 89 Romanian and international media items (~112,400 words) reveals 692 alarm-vocabulary occurrences (6.2 per 1,000 words). Outlet alarm-vocabulary density correlates strongly and negatively with the provision of historical context (Pearson r = −0.88; p < 0.001). We interpret this amplification as consistent with both the Social Amplification of Risk Framework and a shifting experiential baseline mechanism. Our study demonstrates that heavy snowfall in a warming climate can occur in the complete absence of any thermal cold extreme, and underscores the practical consequences of conflating precipitation and temperature hazards in emergency communication, and proposes a standardized context protocol for national meteorological services.

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Monica Ionita, Bogdan Antonescu, and Viorica Nagavciuc

Status: open (until 05 May 2026)

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Monica Ionita, Bogdan Antonescu, and Viorica Nagavciuc
Monica Ionita, Bogdan Antonescu, and Viorica Nagavciuc
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Short summary
This study shows that the winter of 2025/26 in Romania was not historically exceptional in thermal terms, despite intense media claims to the contrary. Using long instrumental records, we show that January and February 2026 were both markedly warmer than the 1971–2000 average, while the main high-impact event, the 18th of February 2026 blizzard, was driven by a Mediterranean cyclone and strong moisture transport rather than an extreme cold outbreak.
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