Mesoscale Discussion 0115
NWS Storm Prediction Center Norman OK
0624 PM CST Sun Feb 22 2026
Areas affected...New York City into Southern New England
Concerning...Heavy snow
Valid 230024Z - 230530Z
SUMMARY...A long-duration moderate/heavy snowfall event will
increasingly impact NYC into parts of southern New England this
evening into Monday morning. 1-2 inch per hour snowfall rates will
be likely, particularly after midnight EST.
DISCUSSION...Recent regional radar imagery from the northern
Mid-Atlantic/southern New England shows a band of moderate to heavy
snow moving slowly northward into Long Island. Already, recent
surface observations reported 1 inch in the last hour at Islip,
LaGuardia, and JFK. This band should continue to impact parts of
southern New England this evening. The highest snowfall rates will
at least initially remain near the coast. With time, the 994 mb low
analyzed off the Mid-Atlantic coast will deepen, particularly after
11 pm/midnight EST. This will eventually promote a broader zone of
stronger isentropic ascent that will promote more widespread
moderate/heavy snow farther north. Surface winds will also
concurrently increase with the deepening of the low. Blizzard
conditions will be possible late this evening into Monday morning.