Contact Members of Congress, asap, and ask for funding for WWVB, WWV, and WWVH to be restored to the NIST (Commerce) 2019 budget, at least until an impact study can be done.
If your member is not worth bothering with, contact another one that you trust. If you can’t decide, start with US Senator Ed Markey of Massachusetts. For the House, the Ranking Member for Homeland Security, Bennie Thompson, is worth contacting. http://www.house.gov/representatives/find-your-representative https://www.senate.gov/reference/common/faq/How_to_correspond_senators.htm
And, yes, WWVB is being shutdown, along with WWV and WWVH, unless restored to budget.
There are a range of unknowns as to what the impacts are of cutting off WWVB, WWV, and WWVH radio stations-signals, especially for crucial infrastructure/critical services. But, unlike for the year 2000 computer-internet problem, there has apparently been no study, no planning, no notification. It’s not even clear if the cuts will start as soon as the budget is passed, or…