A cold frontal gravity wave along the East Coast?
Lee-side frontal gravity waves are occasionally seen to the east of the Rocky Mountains, moving southward across the High Plains of the central US (for example, see 03 April 2007,... Read More
Lee-side frontal gravity waves are occasionally seen to the east of the Rocky Mountains, moving southward across the High Plains of the central US (for example, see 03 April 2007,... Read More
A strong cold front moved southward over the High Plains of the US on Monday 10 November, and the strong winds produced a dust cloud that was apparent in GOES-13 visible imagery, above. The leading edge of the dust cloud in the satellite imagery indicated precisely the leading edge of... Read More
* GOES-18 images shown in this blog post are preliminary and non-operational *Following its initial Post-Launch Test (PLT) period at 89.5°W longitude, GOES-18 reached a near-operational PLT position over the Pacific Ocean at 136.8°W longitude — and began transmitting images again at 0120 UTC on 07 June 2022. Although the first... Read More
A very cold arctic air mass was in place across parts of the Canadian Prairies, with many sites in Alberta reporting surface temperatures colder than -40º F (-40º C) on the morning of 29 January 2008; the leading edge of this arctic air was surging rapidly southward across the Great Plains of the US as a strong cold frontal... Read More