Light winds and clear skies with High Pressure over the western Great Lakes fostered the development of a warm(ish) patch of water over central Lake Michigan on 6 April 2025. (This has happened before!) Light winds means little vertical mixing in the surface layer of the lake, and solar insolation can heat the water. The... Read More
Brandon Aydlett, the Science and Operations Officer (SOO) at the NWS forecast office in Guam (where the National Weather Service day begins) relays the following message: Yesterday we received a call from a local radio noting something suspicious in IR imagery over the Philippines. Of course, it looked eerily like... Read More
Clean-window infrared imagery centered on the Samoan Islands on 9 March 2025, above, show convective development north of Upolu that subsequently shows a cyclonic circulation. This system was accompanied by Flood Warnings, Heavy Rain Warnings and Marine Warnings and Wind Advisories over all of Samoa (Facebook link). Gusts exceeding 70 km/hr... Read More
Several recent notices have announced that radiosonde-carrying balloon launches to measure the temperature and moisture (and winds) in the atmosphere are suspended due to personnel shortages. There are products available to mitigate this data shortage. NOAA-Unique Combined Atmospheric Processing System (NUCAPS) profiles (training video here) use data from CrIS/ATMS (on... Read More
