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Storm “Doris” affects the British Isles

By Scott Bachmeier •

Meteosat-10 Water Vapor (6.25 µm) images, with hourly surface wind gusts in knots [click to play animation]

Meteosat-10 Water Vapor (6.25 µm) images, with hourly surface wind gusts in knots [click to play animation]

Storm “Doris” affected the British Isles on 23 February 2017, producing strong winds and heavy rainfall. The mid-latitude cyclone rapidly intensified from a central pressure of 1004 hPa at 12 UTC on 22 February to 972 hPa at 12 UTC on 23 February (surface analyses) . EUMETSAT Meteosat-10 Water Vapor (6.25 µm) images (above) exhibited the “scorpion tail” signature of a sting jet (Monthly Weather Review | Wikipedia), and surface wind gusts included 58 knots at Dublin, 64 knots at Wittering and 69 knots at Valley.

The corresponding daylight Meteosat-10 High Resolution Visible (0.8 µm) images (below) revealed better detail of the various cloud structures associated with the storm.

Meteosat-10 High Resolution Visible (0.8 µm) images, with hourly surface wind gusts in knots [click to play animation]

Meteosat-10 High Resolution Visible (0.8 µm) images, with hourly surface wind gusts in knots [click to play animation]

True-color Red/Green/Blue (RGB) images from Terra/Aqua MODIS and Suomi NPP VIIRS visualized using RealEarth are shown below. EUMETSAT posted a natural-color RGB animation here.

Terra MODIS (1039 UTC), Aqua MODIS (1226 UTC) and Suomi NPP VIIRS (1248 UTC) true-color RGB images [click to enlarge]

Terra MODIS (1039 UTC), Aqua MODIS (1226 UTC) and Suomi NPP VIIRS (1248 UTC) true-color RGB images [click to enlarge]

Categories: Aqua, Meteosat, MODIS, RealEarth, Red-Green-Blue (RGB) images, Suomi NPP, Terra, VIIRS