GOES-18 (GOES-West) Air Mass RGB images during the 15-19 February 2023 period (above) displayed the migration of a Kona Low from north of the main Hawaiian Island chain on 15 February toward Johnston Island on 19 February. The MIMIC Total Precipitable Water product (below) showed that the circulation of this Kona Low helped to draw... Read More
A modest snow storm affected southern/central Wisconsin on 9 February (WFO ARX story), depositing 6-12″ of snow in a band from northeast Iowa to central Lake Michigan, as shown above: the snowfall caused an obvious change in the Suomi NPP imagery between 08 February and 10 February 2023, shown above using imagery taken from the... Read More
1-minute Mesoscale Domain Sector GOES-18 (GOES-West) “Clean” Infrared images (above) showed convection — which was focused along a quasi-stationary surface trough axis — that was producing periods of moderate to heavy rainfall across parts of Hawai’i on 28 January 2023. Numerous Flash Flood Warnings were issued by NWS Honolulu during this time,... Read More
A classic winter weather pattern developed over the Pacific Ocean this week setting the stage for significant drought relief for the western U.S., along with heavy to excessive coastal rains and mountain snow measured in feet for the Sierras and Rockies. Even though this is a “classic” winter pattern, it... Read More
