I cannot WAIT to hear the responses here! This is a great frequency!
In Bothell, WA days I would get a weak WPKL360 from Woodinville, WA which is a TIS. Bellevue, WA days it's the Naval Kitsap TIS from Bremerton. In Edmonds, WA it was a mix of Naval Kitsap and WPUJ642 from the Kingston, WA ferry terminal (across the water).
Nights is a different story. Most nights I get a very weak, but big jumble of stations. I have pulled WQBV569 Union Gap, WA out of the jumble at night (~120 miles) since I can recognize the computerized woman voice. Other times I get the NWR TIS from Pendleton, OR in the jumble with weak forecasts. One time I DID get the Caribbean Beacon in Anguilla with a very poor signal. It // 6090 (or in other terms, matched the 6.090 khz SW broadcast). Distance on that was 3800 miles!
I've also heard a tentative WPKV296 from Toppenish, WA on this frequency. It was weak, but I think I did hear "Toppenish" in the multi-station weak jumble one night.
At the Hampton Inn in Gresham, OR, the only thing I got on 1610 was WQCA312, a local TIS in Gresham, repeating NOAA Weather Radio.
-crainbebo