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Discussed in the following Daily reports:
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1. Impact
On 22-23 February windstorm Louis hit north-western Europe. Vinga Fyr outside Gothenbourg measured above 30 m/s in mean wind and almost 40 m/s in the gusts.
https://www.smhi.se/bloggar/vaderleken-2-3336/sammanfattning-av-stormen-louis-1.205378
2. Description of the event
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The plots below show analyses of MSLP and 6 hour rainfall from 21 February 00UTC to 24 February 00UTC, every 12th hour. The cycone rapidly developed over the southern North Sea during 22 February.
Satellite image from 23 February 09.15UTC, around the time the maximum winds along the Swedish coast was measured.
3. Predictability
3.1 Data assimilation
3.2 HRES
The plots below show 24-hour maximum wind gusts (22 February 12UTC - 23 February 12UTC) in observations (first plot) concatenated short forecasts (second plot) and ENS control forecasts with different lead times.
The plots below 10-metre mean wind on 23 February 06UTC in observations (first plot - missing) analysis (second plot) and 30-hour forecasts from ENS control (9km), DestinE 4.4 km, AIFS, PanguWeather and Graphcast
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3.5 Comparison with other centres
4. Experience from general performance/other cases
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