Maine Delayed Washington County and other districts to Feb 18th

Why did they delay the Washington County Maine caucuses?

There are other of other caucuses delayed too.

Washington County
POSTPONED TO THE 18TH
All towns, unless otherwise listed, will be participating at the countywide caucus in East Machias.
February 18th, 1:30 P.M.
Washington Academy
East Machias

Current college students: 1,543
Median resident age: 40.5 years

District 5

Gouldsboro, Hancock, Lamoine, Waltham, Sorrento, Sullivan, Winter Harbor, Fletcher’s Landing
February 18th, 10:00 A.M.
Population 1230 ~ 2240

Kennebec County
Clinton
Total population 1,419
Saturday, February 18 10:00 A.M.

15 to 19 years 104 7.3
20 to 24 years 99 7.0
25 to 29 years 80 5.6
30 to 34 years 77 5.4
35 to 39 years 99 7.0
40 to 44 years 107 7.5
45 to 49 years 105 7.4
District 6
Aurora/Amherst, Eastbrook, Franklin, Mariaville, Osborn
February 18th, 1:00 P.M.
Population ~1850

That is approximately 5000 potential caucus voters with a average population that is 40 years of age or younger.

http://www.city-data.com/county/Washington_County-ME.html