The GOES-17 Air Mass RGB, above, shows a distinct jet in the northwestern quadrant of the image. Derived Motion winds are as strong as 170 knots between 250-350 mb (they’re almost as strong from 350-450 mb!) In contrast, winds from 450-600 mb are closer to 70 knots just to the... Read More

A tropical depression in the Philippine Sea has developed into Tropical Storm ‘Nyatoh’. The system is currently moving northwestward. Once it enters the Philippine Area of Responsibility (PAR), it will likely exit the area within 24 hours. Forecasters have predicted the storm will strengthen quickly, but its track will not... Read More

As a compact but anomalously-deep middle/upper-tropospheric low approached Hawai’i on 29 November 2021, GOES-17 (GOES-West) Low-level (7.3 µm), Mid-level (6.9 µm) and Upper-level (6.2 µm) Water Vapor images (above) showed complex lee wave structures southwest of the island chain. There were a few pilot reports of moderate turbulence in the general vicinity of... Read More

GOES-16 True-Color imagery from the CSPP Geosphere site (link showing the data above) on 26 November, above, show features associated with strong flow through Chivela Pass in southern Mexico, gap winds often called Tehuano winds or Tehuantepecers. Strong descent associated with these events can often limit the presence of clouds that... Read More