28 Apr 2022 | 03:25 AM UTC
Pakistan: Heatwave to continue nationwide through at least May 2 /update 1
Heatwave to continue in Pakistan through at least May 2. Transport, utility, and power disruptions possible.
Event
Forecast models indicate that a heatwave will persist nationwide through at least May 2. The Pakistan Meteorological Department has warned of unusually high daytime temperatures across most of the country over the coming days due to a persistent high-pressure area. Daytime temperatures of 6-8 C (10.8-14.4 F) above normal are forecast for Balochistan, northern and central Sindh, and southern Punjab provinces while daytime temperatures of 5-7 C (9-12.6 F) above normal are likely in northern Punjab and Khyber Pakhtunkhwa provinces as well as Islamabad Capital Territory and Azad Jammu and Kashmir and Gilgit-Baltistan administrative territories.
Authorities have warned that the heatwave is likely to enhance snow and ice melt over the glaciated areas of Khyber Pakhtunkhwa Province and Gilgit-Baltistan Administrative Territory; glacial lake outburst floods and flash floods are possible in vulnerable areas, especially at Shishper Lake.
Officials advise residents to conserve water wherever possible and warn that the prevailing hot and dry weather could result in water stress on water reservoirs, standing crops, vegetables, and orchards. Authorities have also advised the general public to avoid unnecessary exposure to direct sunlight.
Hazardous Conditions
The extended period of oppressive heat and dry conditions may produce ideal circumstances for wildfire growth throughout the region. Heatwaves also pose a threat to vulnerable groups - such as the elderly, children, pregnant women, and those with respiratory illnesses - due to the increased possibility of heat stroke or heat exhaustion during prolonged exposure to high temperatures. These health risks could also extend to relatively healthy individuals during significant heatwave events. In addition to significantly impacting athletes and those who work outdoors, high temperatures can cause problems for people using mass transit. The lack of air conditioning and cramped vehicles during rush hour may lead to the hospitalization of some passengers due to dehydration.
Transport and Utilities
Very high temperatures may warp rail tracks and force passenger and freight trains to operate at reduced speed. Road surface damage is also possible, and overheated vehicles may worsen traffic problems in urban areas where congestion is already a problem. Commercial trucking disruptions might occur as very high temperatures put more stress on engines, making tire blowouts more common. Major flight disruptions are unlikely at airports in the region, but general aviation disruptions are possible, and some airfreight carriers could reduce cargo loads. High temperatures could lead to an increased demand for electricity, which might trigger localized brownouts or blackouts, exacerbating hazardous conditions when air conditioning is no longer possible.
Advice
Monitor local media for weather updates and related advisories. During heat waves, remain indoors in air conditioning when possible. If outdoor activities are necessary, frequently rest in shaded areas; avoid activity during the hottest times of the day. Stay well hydrated by drinking plenty of fluids. Avoid alcoholic beverages, which are dehydrating - drink bottled water or water that has been boiled. Wear loose-fitting, light-colored clothing. Cotton fabrics are more cooling than synthetics. Promptly seek medical attention if signs of heat exhaustion or heat stroke develop. Charge battery-powered devices in case prolonged electricity outages occur.
