As Europe recovers from an exceptional heatwave and meteorologists continue to monitor the potential for more heat, the PET map helps cities identify heat stress before it becomes a public health emergency.
Heatwaves are among Europe's most significant weather hazards, affecting millions of people as well as infrastructure, agriculture, and energy systems. But what actually causes a heatwave? Why do some persist for days or even weeks? And how do meteorologists forecast them?
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°F
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86°
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86°
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92°
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98°
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104°
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105°
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101°
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96°
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°F
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91°
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90°
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96°
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105°
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109°
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106°
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102°
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99°
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NE |
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mph
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7-12
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6-11
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7-10
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5-11
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5-11
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6-10
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6-8
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6-9
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in
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%
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15%
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5%
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0%
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0%
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0%
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0%
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0%
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0%
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in
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12.4 mi
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Overnight into Wednesday it is mostly cloudy, but most clouds give way in the morning. For the afternoon clear skies prevail. It is a sunny day. Temperatures as high as 106 °F are foreseen. The UV-Index climbs up to 10, don't forget to use sunscreen when spending the day outside. Overnight into Wednesday a gentle breeze is expected (8 to 12 mph). By day blows a light breeze (4 to 8 mph). Winds blowing at night and in the morning from East and during the afternoon from North. The weather forecast for Glendale for Wednesday is likely to be accurate.
Pressure: 1010 hPa
Timezone: MST (UTC -07:00h)
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The real-time satellite image combines visible light during daytime with infrared radiation during nighttime. At night, the image is not dark as infrared radiation can detect temperature differences. Unfortunately, low clouds and fog are difficult to distinguish from ground temperatures and thus can be almost invisible during the night. Meteosat satellite images for Europe are updated in real-time every 5 minutes. GOES-16/GOES-17 (North & South America) and Himawari (Asia) images update every 10 minutes.
Precipitation is estimated from radar and satellites. Precipitation estimates from satellites are less accurate at night than during daytime.
© 2026 meteoblue, NOAA Satellites GOES-16 and EUMETSAT. Lightning data provided by nowcast.
The location marker is placed on Glendale. This animation shows the precipitation radar for the selected time range, as well as a 2h forecast. Orange crosses indicate lightning. Data provided by nowcast.de (available in USA, Europe, Australia). Drizzle or light snow fall might be invisible for the radar. Precipitation intensity is colour coded, ranging from turquoise to red.
As Europe recovers from an exceptional heatwave and meteorologists continue to monitor the potential for more heat, the PET map helps cities identify heat stress before it becomes a public health emergency.
Heatwaves are among Europe's most significant weather hazards, affecting millions of people as well as infrastructure, agriculture, and energy systems. But what actually causes a heatwave? Why do some persist for days or even weeks? And how do meteorologists forecast them?
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