All the sections currently cover one storm, Klaus. Use the form below to switch to the standard sections for another storm.
The sections below show: 1) details and statistics; 2) gust speed animation showing the track and instantaneous 3-second gusts at 3 hour intervals over a 72 hour period; 3) storm tracks showing the maximum in relative vorticity and minimum in MSLP, while labels on the maximum relative vorticity path indicate the start of that day; 4) raw footprint is described in Storm footprints; 5) uncontaminated raw footprint only includes gusts local to the storm (as described on Storm footprints); 6) observational footprint from MIDAS database; 7) recalibrated lower 95% bound is described in Recalibration of final storm footprints; 8) recalibrated mean is described in Recalibration of final storm footprints; 9) recalibrated upper 95% bound is described in Recalibration of final storm footprints; 10) raw models gusts versus observed gusts is described in Comparison of model footprints to station data; 11) recalibrated models gusts versus observed gusts showing the 95% bounds as error bars. Where data is available, links are provided under figure.
| Damage: | 3.5bn | |
| Countries affected: | Andorra, France, Germany, Italy, Spain and Switzerland | |
| Storm duration: | 0:00 22 January - 15:00 27 January 2009 | |
| Maximum 925 hPa wind speed over land from ERA Interim re-analysis (Umax): | 37.23ms-1 | |
| Date Umax: | 24 January 2009 | |
| Sft (rank of storm): | 24.36e06 (21) | |
| N: | 472 | |
| Maximum relative vorticity at 850hPa from ERA-Iterim reanalysis (ζmax): | 9.25e-05s-1 | |
| Date of ζmax: | 0:00 24 January 2009 | |
| Location of ζmax: | (6.8W, 45.9N) | |
| Minimum mean sea level pressure from ERA-Interim reanalysis: | 966.0hPa | |
| Date of min MSLP: | 0:00 24 January 2009 | |
| Location of min MSLP: | (7.3W, 46.5N) | |
| Related links: | Wikipedia and BBC |
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