GOES-18 airmass RGB imagery, above (created using geo2grid software), shows the development of a hurricane-force low to the west of Washington and Oregon on the 19th of November. The orange and purple colors in the RGB suggest a significant intrusion of stratospheric air. That air is rich in ozone, and... Read More

Total Precipitable Water fields over the western Pacific on 10/11 November 2024, above, show 4 tropical cyclones at different stages of development across the West Pacific. The screenshot from the Joint Typhoon Warning Center, below, shows the 4 storms: Yinxing, about to make landfall in Vietnam, Toraji pulling away from... Read More

Hurricane Rafael is in the Gulf of Mexico, drifting to the west. The MIMIC Total Precipitable Water (TPW) animation, above, shows a notable thinning in the band of moisture connecting Rafael to deep tropical moisture located over the southern Caribbean Ocean. Dry air from the Yucatan is also wrapping into... Read More

NUCAPS estimates of temperature and dewpoint give swaths of information over the Arctic — a region where conventional observations are uncommon and widely spaced. The toggle above shows a disorganized low pressure system over central Alaska — light snow is widespread as shown by the surface observations, below (and in... Read More