Direct Broadcast data from the antenna on Guam (processed with CSPP data) at 1558 UTC on 25 May show the structure of a very strong typhoon. Mawar at 1800 UTC was a Super Typhoon with sustained winds of 155 knots. (Blog Post). The toggle above shows I05 (11.45 µm)Read More

Target Sector (2.5-minute interval) JMA Himawari-9 Visible and Infrared images (above) covered the period +/- 2 hours when Super Typhoon Mawar reached Category 5 intensity at 0600 UTC on 25 May 2023. Mesovortices within the eye were evident in Visible imagery, with the eye exhibiting a “stadium effect” geometry (two signatures that are often associated with... Read More

Typhoon Mawar wobbled north during the day on 24 May and moved through the Rota channel between the islands of Guam to the south and Rota to the north, as shown in the animation of Himawari-9 Target Sector Band 3 (Visible, 0.64 µm) imagery above. The track path from the... Read More

From a NOAA Email: The first in-person Satellite Proving Ground experiment at the Hazardous Weather Testbed (HWT) in Norman OK since 2019 is underway! We have 7 NWS forecasters helping to evaluate 5 products that involve satellite data, focusing specifically on severe storms and their environment. One of the products... Read More