If you try to access radar images from the National Weather Service doppler radar in Wilmington, NC, online or on your mobile app, you won't see anything. Beginning today, the National Weather Service is upgrading their conventional doppler radar to dual polarization doppler radar. The radar will not be back in service any earlier than Tuesday, June 5th or as late as Friday June 8th. This is the most significant upgrade to doppler radar in more than 20 years.