A mild heat wave is sweeping over the regions of Rajshahi, Pabna, Dinajpur and Jashore and it may continue, said a Met Office bulletin. Besides, rain or thunder showers with intense lightning flashes accompanied by temporary gusty or squally wind is likely to occur at a few places over Mymensingh and Sylhet divisions and at one or two places over Rangpur, Rajshahi, Dhaka and Chattogram divisions with hails at isolated places, it added. Also read: Showers with intense lightning in parts of Bangladesh Weather may remain mainly dry with temporary partly cloudy sky elsewhere over the country. Day and night temperatures may remain nearly unchanged over the country, reads the bulletin. Country’s maximum rainfall was recorded in Sylhet at 50 mm in the last 24 hours. Also read: Four divisions, Cumilla region brace for showers Meanwhile, the trough of westerly low lies over Sub-Himalayan West Bengal and adjoining area. Seasonal low lies over South Bay, the bulletin added.