After Sunday brought much of the U.K. and western Europe their warmest weather of the year so far, the core of unusual warmth is poised to shift across central and eastern Europe this week. As it does, western Europe will have a return to near-normal temperature beginning Thursday.
Much of England, France, the Low Countries and even Germany warmed 5 to as many as 10 degrees C (9-18 degrees F) above normal Sunday. Put another way, daytime warmth was more fitting of early to midsummer than mid-April over a wide area.
The London Heathrow high of 20 degrees C, or 68 F, was comparable to mid-June, as was Frankfurt, Germany's, high of 22 degrees C (72 F).
Paris, however, was even warmer than the average July day, as it topped 25 degrees C, or 77 F. Likewise, Amsterdam's high of 22 degrees C, or 71 F, marginally overtopped what is normal for midsummer.
Monday, a weak cold front had crossed the U.K. and western France, trimming warmth somewhat in its wake. At the same time, near-summer warmth was anchored east of the front in Germany, Switzerland, northeastern France and western Austria, where warm spots were topping 25 degrees C early in the afternoon. Unusual warmth also spread northward over Denmark and southern Sweden.
Significant warmth will build westward, temporarily, over France and the U.K. on Tuesday and Wednesday. Then, a strong cold front from the west will drive much cooler air into western Europe beginning Thursday. The vigorous front will then shift the core of warm air ahead of it, dramatically warming Germany and Poland on Thursday, then, to a lesser extent, much of eastern Europe on Friday.
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