The article analyzes the spatiotemporal structure of thunderstorm activity and local electric-field changes in the Northern Tien Shan region based on data from the global WWLLN network and local measurements of the atmospheric electric field obtained by the ELIS-TS complex during 2013–2025. The main thunderstorm season from April to October is considered. During this period, the ELIS-TS complex recorded 3603 events, of which 74.6% were accompanied by negative electric-field changes and 25.4% by positive electric-field changes. Peak activity occurs from June to July, which coincides with the period of maximum convection in this region. A comparison of local measurements with WWLLN data showed that the largest number of recorded electric-field disturbances corresponded to WWLLN-detected events located within the first tens of kilometers from the station. Spatial analysis revealed an increased density of lightning discharges in mountainous and foothill areas, as well as a seasonal shift in thunderstorm activity due to the orographic influence of the terrain. Dividing the study area into lowland and mountainous zones revealed differences in the diurnal activity pattern: the peak occurs earlier in the mountains, indicating earlier convective development over high-altitude terrain.

Analysis of variations in the components of the Earth’s magnetic field, recorded at the magnetic observatory of the Institute of Ionosphere (Almaty, Kazakhstan) during the earthquakes of 22 January 2024 and 4 March 2024, showed that these fluctuations were not related to intrinsic variations in the magnetic field itself, but rather to mechanical oscillations of the magnetometer together with its support. Evidence supporting the seismokinetic origin of the variations in the vector magnetometer was the discrepancy between the total magnetic field measured by the absolute magnetometer and the total magnetic field calculated from the vector magnetometer readings. Equations were derived that relate variations in the components of the magnetic field to the tilt angles of the sensor, enabling the determination of the direction of arrival of seismic shock waves. Azimuths of earthquake epicenters were calculated from oscillations observed in magnetogram records for several events, and these were compared with azimuths obtained from a network of seismic stations. It is shown that, in order to improve the accuracy of geomagnetic field measurements—required for the study of seismoelectric and seismomagnetic phenomena, as well as for identifying earthquake precursors—the design of magnetic observatories should be supplemented with an inclinometer to enable correction of vector magnetometer measurement results.