Apparently we got in trouble and NCEP took our toy away.
Attention User:
Update (6/20/2020): NCEP has stopped transmitting HRRRv4 data until further notice.
For further information, check the following twitter accounts for periodic updates on product generation status and website improvements; @CoDWXData and @CODMeteorology. Your feedback is always appreciated, so feel free to respond to tweets or send us an email using our Feedback page.