A tremendous peel peal of thunder coincided with reports of an explosion at 18th and Republican Monday morning just before 5a.

Seattle City Light currently shows an extremely limited power outage at the location. There were no other outages immediately reported in the city. The 18th/Republican location is several blocks from the radio and television towers on E Madison that more typically draw strikes.

Heavy rain accompanied the boom and the resulting standing water on I-5 has lead to a series of motor vehicle accidents Monday morning as Seattle prepares for its first weekday commute during the 9-day Viaduct closure period.