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I really hope the parts burn up during reentry!

Susan, i guess most people would agree with you. :)

Deborah Byrd has the latest on the Tiangong-1 re-entry with useful links.

Here's the latest forecast from the European Space Agency, based on recent conditions in the upper atmosphere.



Tiangong-1 reentry window forecast as of 11:00 CET, 31 March Credit: ESA

TIANGONG-1 REENTRY UPDATES
Latest reentry forecast provided by ESA’s Space Debris Office, ESOC, Darmstadt, Germany.

Update 1 April 2018
With the latest available orbital data and space-weather forecasts, the reentry prediction window has stabilised and shrunk further to a time frame running from midnight 1 April to the early morning of 2 April (in UTC time).

Note:
Reentry will take place anywhere between 43ºN and 43ºS. Areas above or below these latitudes can be excluded. At no time will a precise time/location prediction from ESA be possible. This forecast was updated approximately weekly through to mid-March, and is now being updated every day.

Final update from the ESA team.

In just a few hours, we’ll be well within the uncertainty window associated with this reentry, and we don’t expect any more forecast updates with any higher accuracy. In other words, we’re at the limit of what we can forecast.

Just over an hour ago, ESA’s space debris team provided their final estimate for reentry, forecasting a window of about four hours between 23:00 UTC on 1 April to 03:00 UTC on 2 April (01:00 CEST on 2 April to 05:00 CEST on 2 April).

UTC is 4 hours ahead of Eastern Daylight Time.

Tiangong-1 is down "somewhere over the South Pacific".

The US air force has confirmed the reentry of the Tiangong-1 spacecraft at about 02:16 CEST this morning over the southern Pacific Ocean. The location of the reentry was, by chance, not too far from the so-called South Pacific Ocean Unpopulated Area. The SPOUA has long been used by many space agencies including ESA, to dispose of end-of-life spacecraft through controlled reentries.

The air force wrote:
The JFSCC used the Space Surveillance Network sensors and their orbital analysis system to confirm Tiangong-1’s reentry, and to refine its prediction and ultimately provide more fidelity as the reentry time approached. This information is publicly-available on USSTRATCOM’s website www.Space-Track.org. The JFSCC also confirmed reentry through coordination with counterparts in Australia, Canada, France, Germany, Italy, Japan, South Korea, and the United Kingdom.

Tiangong-1 reentered the Earth’s atmosphere over the southern Pacific Ocean at approximately 5:16 p.m. (PST) April 1, 2018.