CNN News:冷冬失約了

What happens on March 20th, 2017?

2017年3月20號，是什么日子呢?

Is it the Vernal Equinox, Spring Solstice, Easter, or St. Patrick`s Day?

春分,復(fù)活節(jié)、圣帕特里克節(jié)

The Vernal Equinox, aka the first day of spring, is on Monday, March 20th.

3月20日，春分，是春天的第一天。

AZUZ: Regardless of what Punxsutawney Phil saw on Groundhog Day, spring has been in the air in Western Pennsylvania and states throughout the eastern and southern U.S. They`ve had warmer than average temperatures so far this year.

無論土撥鼠費(fèi)爾在土撥鼠日看到了什么，春天已經(jīng)悄悄地來到了賓夕法尼亞西部以及美國東部和南部的各個(gè)州。直至目前為止，那里的溫度要高于平均氣溫。

Though there was some heavy snowfall in the American West and North over the weekend, during a cold front that made things feel like they normally do in February, thousands of record high temperatures have been recorded this month, contrast it with a few dozen record lows. And forecasters say this week, they expect highs of 15 to 20 degrees above average for the East and Southeast.

盡管上周末，美國西部和北部地區(qū)發(fā)生暴風(fēng)雪，冷空氣前鋒似乎使得在二月份發(fā)生暴風(fēng)雪非常的正常，但是，與之前的幾十個(gè)氣溫歷史低點(diǎn)相比，本月已經(jīng)已有大量創(chuàng)紀(jì)錄的高溫。本周預(yù)報(bào)員表示，本周美國東部以及東南部地區(qū)的溫度要比平均氣溫高出15~20華氏攝氏度。

Why?

為什么會(huì)出現(xiàn)上述現(xiàn)象呢?

One major factor is probably La Nina. It`s a natural climate pattern that brings colder than normal ocean surface temperatures to the Pacific. But it results in warmer than normal temperatures in the American South. Government meteorologists say a relatively weak La Nina event has come and gone, but its impacts could continue through March.

拉尼娜現(xiàn)象可能是其中一個(gè)重要的因素。拉尼娜現(xiàn)象是一種自然的氣候模式，會(huì)帶來比正常海面溫度還低的冷流到太平洋。但是導(dǎo)致美國南部的氣溫高出正常氣溫。政府氣象學(xué)家表示，一個(gè)影響相對弱的拉尼娜現(xiàn)象是已經(jīng)結(jié)束，但是其影響將會(huì)持續(xù)到3月份。