The mp4 animation above, downloaded from the CSPP Geosphere site, shows true-color imagery in the 90 minutes surrounding an EF-3 tornado in Virginia Beach, VA shortly before 2200 UTC on 30 April 2023 (CIMSS Satellite Blog post; SPC Storm reports; ProbSevere imagery for the storm is here). Note the overshooting tops moving from southeastern Virginia northeastward to... Read More
Severe weather on 15 April and 19 April affords another opportunity to compare Significant Tornado Parameter predictions from a 4-km WRF simulation that includes information from Polar Hyperspectral Soundings and a 3-km HRRR simulation that does not. Consider the example, above, at 2200 and 2300 UTC on 15 April and 0000 and... Read More
The recent bouts of severe weather (See this blog post about the 31 March outbreak, or this one about the 4 April outbreak) over the central United States mean an opportunity to compare Numerical Model output from models that are initialized with temperature/moisture profiles derived from Polar Hyperspectral Soundings (using both infrared and microwave data from CrIS/ATMS or IASI/AMSU/MHS) to models... Read More
This is the first in a series of posts on the 2023 version of PHSnMWnABI modeling. CIMSS this year will again be supplying output to the Hazardous Weather Testbed (HWT, from late May through mid-June 2023) from a modeling system that includes Polar Hyperspectral Soundings (Infrared and Microwave) that are... Read More
