https://easternmassweather.blogspot.com/2022/01/blizzard-of-22-verification.html
Blizzard of '22 Verification
Solid Effort with Mixed Results
In the lead up to the Blizzard of '22, the primary question pertaining to the evolution of the storm was the degree to which the descent of arctic air into the region would cause the storm to deflect to the east and chase convection over the ocean.
Thus it was this crucial question that represented the focus of Friday's Final Call.
Eastern Mass Weather postulated that the heaviest snows would fall in two primary bands.
The first being associated with the mid level deformation over east central Mass down into Eastern Connecticut:
This area of very heavy snowfall was the result of mid level convergence due to both the changing of wind direction and speed:
And a steep temperature differential:
As evidenced by the relative humidity fields (moisture) in the mid levels of the atmosphere:
This culmination of factors in the mid levels of the atmosphere was forecast to result in the intense lift necessary to produce excessive snowfall rates of up to 2 to even as much as 6" per hour an isolated areas:
While this idea worked out for the most part, the area of intense lift transferred to the coast, instead of extending into north central and interior NE Mass, as forecast. Thus the heaviest snows materialized over eastern CT:
Before relocating to southeastern Mass and coastal eastern Mass.
This caused the heaviest snows, from about 24-30", to shift from the forecast primary area of focus for heavy banding, across the interior, to the secondary area along the coast:
This subsequently became the primary focus for the heaviest mesoscale banding that was originally forecast to translate across Worcester county and interior NE Mass.
Ultimately, towards the latter stage of the storm on Saturday evening, the forecast area of deformation banding across the interior did materialize, producing a secondary somewhat lesser maxima of up to about 18".
However, this was too late to reach the forecast amounts of 18-30" in this area, which ended up occurring over southeast Mass in association with the coastal area of deformation.
Final Snowfall Accumulations:
vs Final Call:
& First Call:
Final Grade: B-