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Mesoscale Discussion 42 |
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Mesoscale Discussion 0042
NWS Storm Prediction Center Norman OK
0312 AM CST Fri Jan 07 2022
Areas affected...portions of Long Island NY into CT...RI and eastern
MA
Concerning...Heavy snow
Valid 070912Z - 071415Z
SUMMARY...Snowfall rates will increase to around 1-2 inches per hour
at times from parts of Long Island into eastern MA through early
morning.
DISCUSSION...Snowfall rates are increasing early this morning from
portions of Long Island NY into eastern CT, RI and eastern MA. This
is occurring within a band of strong 700 mb frontogenesis and 2 hour
surface pressure falls of around 2-3 mb. Additionally, increasing
midlevel ascent through a deep, saturated dendritic growth layer
will increase snowfall efficiency. The heaviest snowfall rates are
expected within bands from Long Island into eastern CT and southeast
MA over the next several hours. Rates may approach 1-2 inches per
hour at times through early morning.
..Leitman.. 01/07/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...BOX...OKX...ALY...
LAT...LON 41287351 41927276 42657152 42777067 42617033 42377011
41787008 41097084 40667215 40557284 40657332 40927355
41287351
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