{"id":29276,"date":"2018-08-03T23:59:37","date_gmt":"2018-08-03T23:59:37","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=29276"},"modified":"2018-10-28T20:02:20","modified_gmt":"2018-10-28T20:02:20","slug":"alonsa-manitoba-ef-4-tornado","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/29276","title":{"rendered":"Alonsa, Manitoba EF-4 tornado"},"content":{"rendered":"

\"GOES-16<\/a>

GOES-16 “Red” Visible (0.64 \u00b5m)<\/em> images, with hourly plots of surface reports; yellow * denotes the town of Alonsa [click to play MP4 animation]<\/p><\/div>1-minute Mesoscale Domain Sector<\/strong><\/a> GOES-16 (GOES-East)<\/em> “Red” Visible (0.64 \u00b5m<\/strong><\/a>) images (above)<\/strong><\/em> showed the development of a thunderstorm which produced an EF-4 tornado near Alonsa, Manitoba during the early evening hours on 03 August 2018<\/strong><\/a>. The cell began to develop southwest of Alonsa around 0020 UTC, and as the thunderstorm matured a series of pulsing overshooting tops could be seen. The haziness evident in the Visible imagery was due to smoke from wildfires in the western US and Canada.<\/p>\n

The corresponding GOES-16 “Clean” Infrared Window (10.3 \u00b5m<\/strong><\/a>) images (below)<\/strong><\/em> revealed that the coldest cloud-top infrared brightness temperature of around -70\u00baC occurred at 0123 UTC<\/strong><\/a> (just prior to the time of the tornado).<\/p>\n

\"GOES-16<\/a>

GOES-16 “Clean” Infrared Window (10.3 \u00b5m) images, with hourly plots of surface reports; black * denotes the town of Alonsa [click to play MP4 animation]<\/p><\/div>\n

<\/p>\n
\n

Environment Canada has upgraded the deadly Manitoba tornado to an EF-4, making it the strongest tornado confirmed in all of North America in 2018.#MBstorm<\/a> #Alonsa<\/a> https:\/\/t.co\/BAl8ed5ZfU<\/a><\/p>\n

\u2014 The Weather Network (@weathernetwork) August 7, 2018<\/a><\/p><\/blockquote>\n