hamish macdonald abc news taipei. >> we turn back to weather now in this country. the eastern part of the u.s. locked in a deep freeze this morning with windchills plunging well below zero. winter weather advisories posted from the ohio valley to new england. lows of just 9 in new york and a bone-chilling minus 4 in boston. another round of snow moves in over the weekend. >>> meanwhile the west is getting swamped by a soaking storm. that's rain on the camera if you can make this out overnight in seattle after weeks of no rain scrambling to get sandbags in the san francisco bay area. over a foot of rain could fall but not enough for drought-stricken california. it will be felt across the wide region. stephanie olmo has the latest. >> well another storm is approaching this area bringing in some heavy rain across the northwest region. 1 to 2 inches is expected. seattle, down to portland towards the coastal areas could receive 2 to 4 inches. also with the storm system some strong winds behind this. do expect delays on i-5. could see delays and cancellations. now it is

detectives from scotland yard were at the house today, and so was abc news correspondent hamish macdonald. >> i want to take you to have a look at the house itself because clearly the world's media has been camped here, talking to neighbors, looking for any signs of life. this is the house that police were knocking on the door of. >> reporter: tonight the family and friends of american hostage steve sotloff said they hope he is captured alive. >> we would like to see him in a court of law, in the dock being charged with his crimes and having to answer for what he did. if he's simply killed in an air strike we won't know anything else. >> so this was something today, brian. authorities reveal they knew who they were dealing with shortly after the videos surfaced. you learned tonight, they had him on the radar for years now. >> reporter: that's right. since 2009 british security officials have been tracking him. tonight, he's very much a man with a target on his back. >> all right, brian ross leading us off tonight. >>> now, to the terror arrests right here in the u.s. those three suspects

abc's hamish macdonald is on the scene. >> the dive teams are at the water's edge. every now and then they'll drag up another chunk of the plane. but what they're really looking for are those bodies that remain unaccounted for. >> reporter: for 15 of the 58 on board, survival of this crash and the aftermath. >> this was shallow part of the river and a slow-moving river. so people had a chance to climb out and they weren't being pushed downstream. >> reporter: tonight, the mayor of taipei is calling the pilot a hero for missing those apartment buildings. that could be confirmed by the data from the black boxes. that information could be released in the coming hours. david? >> david kerley thank you. >>> back here at home this evening, and now word of yet another snowstorm. this one will last for days. but the more immediate threat tonight, the sub zero cold right here. in iowa negative 14. the hudson river in new york city, iced over as far as you can see. and look at this. as far south at florida tonight, the cold air fueling a tornado in boca. the damage right ther

abc's hamish macdonald saw the aftermath. >> you can see where the wing smashed into it.c investigator told us that if the car was any further forward or any lower to he wouly >> reporter: cab driver asseved. 15 people in thraft now, the t very prompt in releasing this information. but they're not drawing any ons the investigation continues but, >>> we'll turn to a new measles scare in another major c five babies from a day care center in chicago contracted the disease. at least ten more may have been exposed. abc's chief health and medical eb >> good morning, george. these babies, they were too young to be vaccinated. and around the country, official this is morning are facing the challenge of convincing some parents that vaccination is more this morning, more measles this day care at a chicago bb hurtha fie have been diagnosed witthe 3 up to ten other infants are at risk and >> these are children that are probably not vaccinated because they are -- many of them are under the age necessary to receive their first vaccination. >> reporter: major medical groups like the cd

. >> reporter: that as more survivals come to light including the cab driver and hamish macdonald sawermath. >> you can see where the wing smashed into it. the forensic investigator told us that if the car was any further forward or any lower to the ground it would probably have been destroyed or potentially flipped right over. >> reporter: cab driver and passenger survived. 15 people in the aircraft. now, the taiwanese have been prompt in releasing this information but they're not drawing any conclusions. the investigation continues but, george it is appearing as if their pilot error was a significant factor in the crash. >> okay david, thanks very much. >>> we'll turn to a new measles scare in another major city. five babies from a day-care center contracted the disease. at least ten more may have been exposed. abc's chief health and medical editor dr. richard besser tracking it. good morning rich. >> these babies were too young to be vaccinated and around the country officials this morning are facing the challenge of convincing some parents that vaccination is more than a personal

it was pulled from the river, the fuselage but victims missing hamish macdonald is on the scene. >> you see part of the plane being dragged up now by the soldiers the dive team is down by the water's edge and every now and again they bring up another chunk of the plane and they'll be here long into the night. >> reporter: it was just after takeoff that the pilot of the nearly brand-new turboprop plane radioed engine trouble. >> mayday mayday engine flame out. >> reporter: the video frame by frame includes clues. steve ganyard is a crash investigator. >> they're looking to clear the obstacles and not run into the apartment buildings. it is out of control and the right engine is spinning but the left appears to be feathered and a wing hit the taxi and bridge and shears off. >> reporter: we learned the pilot and co-pilot with a third pilot in the cockpit are all among e dead. now, taipei's mayor is calling that pilot a hero. the data from the black boxes could confirm that and the taiwanese are telling us we'll get that information from the black boxes very soon. george. >> okay david, tha