Some of the highest temperatures ever measured in April were registered across the heart of Europe during the last week of the month.
The swath of exceptional warmth stretched from Germany and Austria east to Ukraine and central Russia.
Saturday to Monday, high temperatures soared to 28 to 32 degrees Celsius, or 82 to 90 Fahrenheit, which would be significantly above normal even for the height of summer.
Readings were 10 to 15 degrees C above normal for late April.
Sunday, Moscow reached 28.6 C (83.5 F), for the high temperature ever measured in the month of April, the Hurriyet Daily News website said. The earlier high mark was 28 C, registered on April 24, 1950.
Moscow has 130 years of weather records, the report said.
In Austria, the northern district of Lower Austria reached 32 C, or about 90 F, the NTN24 News website said.
The Czech capital of Prague had its hottest 28th of April in 212 years, as a high of 27.7 C (81.9 F) was measured, NTN24 said.
Berlin, Vienna, Warsaw, and Kiev all registered about 30 C (86 F) on the warmest one or two days of the hot spell.
Meteorological information analyzed by AccuWeather.com showed strong high pressure over southeastern Europe steering a mass of air from North Africa to the heart of Europe.
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A new surge of warm air will trigger another round of severe thunderstorms in parts of the eastern United States Wednesday and Wednesday night.
Unsettled weather will continue through midweek as showers dampen much of Germany.
Spring will get off to a slow start over much of northern Asia and in part of the Middle East, while more typical conditions are in store for most areas farther to the south and east.
After record warmth baked the eastern U.S. during the last full week of February, winter will seek its revenge during the first week of March.
Prior to midweek, severe thunderstorms with isolated tornadoes, damaging winds, downpours and hail will threaten areas from Indiana to Texas.
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