48°36'N / 14°18'E / Wysokość 580 m / 23:37 05.08.2026, Europe/Prague (UTC+2)
Od: 05.08.2026, 19:02
Do: 05.08.2026, 23:59
Very strong heat stress expected. Risk of overheating and dehydration. Significantly increased load on the healthcare system and social services (especially care for the elderly and chronically ill). Decline in worker performance and increased risk of occupational accidents, particularly in outdoor work or in stuffy enclosed environments.
Český Krumlov
Avoid prolonged exposure to the sun or overheated urban areas, strictly maintain hydration with increased intake of non-alcoholic beverages (including mineral replenishment), avoid higher physical/mental loads, ventilate only during cooler parts of the day (usually early morning). Seek medical help in case of health problems. Do not leave children or animals in parked vehicles. Set air conditioning in rooms or vehicles so that the body is not exposed to excessive thermal shock when moving in or out; the difference between indoor and outdoor temperatures should not exceed 5 to 8 °C.
CHMI, Martin Tomáš
05.08.2026, 19:04
Od: 05.08.2026, 19:02
Do: 08.08.2026, 01:30
Risk of fires due to prolonged drought. Possible occurrence of severe fire with subsequent damage. Possible damage to ecosystems, property, forestry, agriculture, etc. Risk of human injury. Deterioration of air quality causing respiratory problems and other health issues.
Český KrumlovDo not light fires outdoors, do not burn grass, do not smoke or discard cigarette butts on the ground. Do not use portable stoves or other open flame sources. Follow local bans issued due to drought and fire risk. Stay alert when using agricultural machinery and near railway tracks where sparks from wheels and brakes can ignite vegetation.CHMI, Tomáš Mejstřík05.08.2026, 19:04Od: 05.08.2026, 19:02
Do: 05.08.2026, 23:59
Maximum air temperatures above 32 °C. Possible complications, especially in transport, livestock production, and the energy industry. Possible deformation of rails in rail transport, damage to poor quality roads, particularly those exposed to sunlight. The need for intensive cooling of enclosed halls (livestock production, industry, logistics, etc.). Higher load on energy infrastructure.
Český KrumlovCheck the functionality of the cooling systems and backup power systems. When travelling, monitor the traffic situation.CHMI, Martin Tomáš05.08.2026, 19:04Od: 06.08.2026, 00:00
Do: 06.08.2026, 20:59
Strong heat stress expected. Risk of overheating and dehydration. Increased load on the healthcare system and social services (especially care for the elderly and chronically ill).
Český KrumlovStay in the shade, maintain proper hydration with increased intake of non-alcoholic beverages, schedule higher physical/mental loads for the cooler parts of the day. Seek medical help in case of health problems. Do not leave children or animals in parked vehicles. Set air conditioning in rooms or vehicles so that the body is not exposed to excessive thermal shock when moving in or out; the difference between indoor and outdoor temperatures should not exceed 5 to 8 °C.CHMI, Martin Tomáš05.08.2026, 19:04
Od: 06.08.2026, 05:00
Do: 06.08.2026, 10:59
Risk of severe thunderstorms. Possible local property damage and complications, especially in the energy industry and transport. Potential for local flooding, especially of low-lying areas. Local wind damage to roofs, fences, soft shelters and trees. Local power outages. Some travel delays. Driving conditions difficult. Possible crop damage from small hail. Risk of fire caused by lightning strike. Risk of injury from flying or falling objects, and lightning strikes.
Český KrumlovBeware of lightning strikes and flying or falling objects (especially branches). Seek shelter in a building equipped with lightning protection. Outdoors, take cover in dense forest or low vegetation; avoid water bodies, hilltops, metal structures, isolated trees, and rock overhangs. When driving reduce speed. Observe weather warnings, weather radar (www.chmi.cz or mobile apps) and local flood risk https://produkty.chmi.cz/ffi.CHMI, Eva Richtariková05.08.2026, 19:04