X-band radar data sharpen simulation of westerly weak tornado
Tornadoes are among the most destructive weather phenomena on Earth. Their small scale, short life cycle and sudden onset make them extremely difficult to predict. This challenge is amplified for weak tornadoes embedded within midlatitude westerly flows, which often hide in plain sight with faint signals. Improving the simulation capability for these events is vital for reducing disaster risk in…
Researchers led by Kaifeng Zhang from the Foshan Meteorological Bureau have developed a more accurate simulation of a weak tornado that struck Guangdong in June 2022. Using data from a 37-meter ultra-high-resolution WRF model and 3D-Var assimilation of X-band phased-array radar data, the study demonstrates the significant value of radar wind information in predicting the path and impact of weak tornadoes within midlatitude westerly flows.
The X-band radar's radial wind data, when combined with reflectivity data, produced the most accurate representation of the tornado's track, closely matching the actual path. This research highlights the importance of incorporating phased-array radar data in mesoscale meteorology for enhancing the accuracy of low-level vortex simulations and early warning systems for vulnerable regions.
Written by urgent.news from Phys.org's reporting — not their text. Machine-written — it may contain errors, so check the original before relying on it.
