| http://www.w3.org/ns/prov#value | - This usually leads to a narrow band of showers and thunderstorms along or just ahead of the front, especially if the rising air is unstable.</p> <p><div class=thumb tleft><div class=thumbinner style=width:152px;><img alt=Cold front. (Source: <a href='http://www.srh.noaa.gov/jetstream//synoptic' class='external text' title='http://www.srh.noaa.gov/jetstream//synoptic' rel='nofollow'>NO
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