That forecast came out on the 15th. Gefs and Geps were showing persistent cold pattern on the 12z runs of the 15th. Eps were showing average temps. Guess they didn't buy the Gefs and Geps. Eps late to the party again. They wrecked that model.
I would guess they want a redo in that map.
P.s. I know it's for a longer period, but they clearly were not thinking temps shown on the new map for that period.
I've been harping on that Japan trough for a while as I believe it's key to maintaining the trough in the east. Modeling seems bent on holding it in. Otoh, I couldn't care less if it disintegrated so long as it stays cold!
I pulled this off the MA forum since I don't have an X account.
https://x.com/webberweather/status/1858974921260769366?ref_src=twsrc^tfw|twcamp^tweetembed|twterm^1858974921260769366|twgr^218a23fb7d50a5fcd5e2639788423433ba212012|twcon^s1_&ref_url=https%3A%2F%2Fwww.americanwx.com%2Fbb%2Findex.php%3Fapp%3Dcoremodule%3Dsystemcontroller%3Dembedurl%3Dhttps%3A%2F%2Ftwitter.com%2Fwebberweather%2Fstatus%2F1858974921260769366%3Fs%3D4626t%3DJYOHM881b6groqc0-RqtxA