UPDATE:ISA postponed as well. Next ISA update is February 25, 2018.
Via NIYA Regatta Chair Tim McCormick:
The Northwest Regatta is postponed until March 2-4. We have a number of potential sites which are close to racing conditions. Madison lakes have smoothed out nicely but they have shell ice; ¾” ice above 1-3” of liquid. Geneva has drain holes with skimmed ice over them. Green Lake is similar to Madison plus it has some hard 4” snow drifts. Lake Winnebago and Green Bay are getting smoother but are still too rough for a regatta. Next update is Sunday, February 25th at 7pm CST.