The last time Halley’s comet flew by the earth was in 1986. If you happened to miss it then, you can see it now, as peak visibility is occurring from March 5th – 6th in the predawn hours.
From mid-northern latitudes, the radiant, (the spot in the sky from which the meteors appear to emanate), will rise around 1:30 a.m. local daylight time, scarcely two hours before morning twilight begins to interfere.
At peak activity, observers at 26 degrees north latitude, (around Brownsville, Texas or the Florida Keys), should be able to see about a dozen Eta Aquarid meteors, provided viewing conditions are good. But that number falls to practically zero north of 40 degrees, (New York City).
You can monitor the debris entering the earth’s atmosphere over at livemeteros.com.