You know what "PLAY" button is.http://weathernews.jp/sakura/#//ddm=simu_
Also you can search by Twitter, FB, instagram..., though.
BUT, blooming forecast will be revised after this, so no need to worry from now.
It can not be said that we saw the best cherry blossoms
unless we had fine weather during a short full bloom 3 to 5 days.
Full blooming(満開 mankai) start date is not "first bloomig(開花 kaika)" date.
Blooming forecast date is NOT "full blooming" date, don't make a mistake.
The expected date differs because the reference "standard trees" are different.
The highest institution of Japan's meteorological observation is "JMA",
the info you wrote is a private weather companies one,
so they watching own selected another standard trees.
"WNN" is also one of them and also based 5000+ "My Sakura" users
and daily posted live reports nation wide.
This is one of user report with pics, in Tokyo near Meguro river.http://weathernews.jp/sakura/my/?id=101823731:13110#//c=36
This is JMA records of full blooming start date.http://www.data.jma.go.jp/sakura/data/sakura004_03.html
It will be difficult to understand, bc without map.
(use Google translate)
"SomeiYoshino" is most famous(also top numbers of tree) species name,
and selected "standard tree" of blooming forecast.
The type of Sakura tree is said to be "500+",
but there are few people who can say more than 10 kinds even in pure Japanese.
It is more than 95% of the total with only SomeiYoshino and several species.http://wolfie-akira.cocolog-nifty.com/.shared/image.html?/photos/uncat...http://www.johnson.co.jp/life/bitekilife/spring/images/01_img02.jpg
Although not conscious of much, Sakura is biologically a relative of "Rose",
breeding continues not only for wild species but also for ornament.
So SomeiYoshino is most successed tree as a result of breeding, born in about 150 yrs ago.
However, it is young as a history of tree, and have weak points as tree life. (not flower life)
Anyway, no one knows the best timing until just before.
Even in the same area and same species, it will bloom earlier in sunny places,
otherwise it will bloom late, nothing you cannot see.