Definition: Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.
Input: Meteorological history A cut-off extratropical cyclone over the central north Pacific moved over an area of ocean with sea surface temperatures as high as 2 ° C above normal for two days.

A cut-off extratropical cyclone was in the central north Pacific. It moved over ocean with sea surface temperatures as high as 2 ° C above normal for two days.