Assertion: cyclone's wind | /r/HasProperty | near the 500 hpa pressure surface
Facets:
value: about midway up the troposphere
type: LOCATION
Source sentences:
text: On weather maps, these areas show converging winds (isotachs), also known as confluence, or converging height lines near or above the level of non-divergence, which is near the 500 hPa pressure surface about midway up the troposphere.