23/00 UTC Eta 6-hour frontogenesis, RH and EPV forecasts valid 23/06 UTC.

Eta 00-hr banding diagnostic

Slide Links:

Speaker Notes:

At 06 UTC, the negative EPV was east of our forecast area. Note that negative EPV on the south side of the frontogenesis was collocated with relative humidities greater than 80 percent across southeast New England. Slantwise convection would be possible in that area.

Text Mostly Version