Banner cloud in Alaska
![](https://cimss.ssec.wisc.edu/satellite-blog/wp-content/uploads/sites/5/2018/11/ak_banner_ir-20181107_200937-1.png)
Suomi NPP VIIRS Infrared Window (11.45 µm) images (above) showed a well-defined banner cloud extending from the Brooks Range in northern Alaska to the Beaufort Sea on 07 November 2018. Overlays of NAM12 model 250 hPa winds revealed the presence of a branch of the polar jet stream flowing northeastward... Read More