I'm thinking shortages here will hit around Christmas and follow into the New Year.
Amos 8:10 I will turn your religious festivals into mourning and all your singing into weeping. I will make all of you wear sackcloth and shave your heads. I will make that time like mourning for an only son and the end of it like a bitter day.
We don't have songs associated with Thanksgiving, but turning "Thanksgiving" into mourning seems like the sense for this verse. We do have lots of Christmas songs and the practice is to have Christmas carols, so the sense I get here is they will be turned to weeping.
The verse talks about "festivals" plural. There is a similar event at the start of the Great Tribulation where Zechariah says they will see Him whom they pierced.
So this is interpretive, but when I read Amos all all the sins he lists off it seems it is particularly pointed at the US ("a Christian nation"). The tribulation which begins with the pretribulation rapture in which babies and toddlers are also taken along with all the "Jesus Freaks" that the "more sensible" Christians had mocked, ridiculed and ignored. So for those who are left behind God will "turn their religious festivals into mourning". But this is plural, at the time of Easter we don't have several religious festivals. I suspect this verse gets fulfilled prior to Thanksgiving. Generally after Thanksgiving is when they flood the radio with the "Christmas songs". They will be like salt in the wounds of anyone left behind.