Weak high pressure and a marginally cold air mass was locked into the northeast with blocking to the north across Eastern Canada, while low pressure over the Midwest moved east and redeveloped off the Northern Mid Atlantic coast. This led to the first widespread accumulating snowfall across the CWA.

Heavy Snow in NORTHERN FAIRFIELD, CONNECTICUT
From 27-FEB-23 20:00:00 to 28-FEB-23 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell across the northern half of the county. Snowfall reports from trained spotters of 6.8 inches at 1 E Danbury, and 6.3 inches in New Fairfield were reported.  Also a Cocorahs observer reported 6.2 inches at 2.4 NNE Ridgefield.

Heavy Snow in SOUTHERN FAIRFIELD, CONNECTICUT
From 27-FEB-23 21:00:00 to 28-FEB-23 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell across much of the southern half of the county, especially further west. A trained spotter 6.4 inches in Weston, and 6.0 inches in Fairfield, and a Cocorahs observer reported 6.1 inches in Norwalk, with a public report of 6.0 inches at 4 SSE Easton and 5.5 inches at 2 SW Bridgeport.

Heavy Snow in NORTHERN NEW HAVEN, CONNECTICUT
From 27-FEB-23 21:00:00 to 28-FEB-23 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell across the northern half of the county into the morning commute. A public report from 4 ENE Naugatuck of 6.2 inches was reported. A trained spotter from North Haven reported 5.5 inches. Cocorahs observers reported 5.5 inches in Hamden and 5.5 inches in Meriden.  The following snowfall reports came in just after sunrise as temperatures were marginal which likely led to some compaction just before the measurements were taken.

Heavy Snow in NORTHERN MIDDLESEX, CONNECTICUT
From 27-FEB-23 21:00:00 to 28-FEB-23 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow was reported across the northern half of the county into the morning commute. A trained spotter reported 6.1 inches in Cromwell, and a Cocorahs observer reported 5.0 inches in Higganum. Some compaction likely took place with these reports as they came in well after the steadier snow ended as temperatures were marginal and close to freezing and then rose above freezing.

Heavy Snow in NORTHERN NEW LONDON, CONNECTICUT
From 27-FEB-23 21:00:00 to 28-FEB-23 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Heavy snow fell across the county into the morning commute. Cocorahs observer reported 6.7 inches in Norwich, and 5.5 inches at 5.2 SE Norwich.  A public observer reported 5.5 inches at 3 WSW Franklin.

Winter Weather in SOUTHERN NEW HAVEN, CONNECTICUT
From 27-FEB-23 22:00:00 to 28-FEB-23 08:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 4.5 inches of snow in Milford. Cocorahs observers reported 3. 8 inches in Madison  A COOP observer reported 4.0 inches in Guilford and 3.8 inches at 2.7 WSW Guilford Center, with broadcast media reporting 4.5 inches in New Haven.

Winter Weather in SOUTHERN MIDDLESEX, CONNECTICUT
From 27-FEB-23 22:00:00 to 28-FEB-23 08:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 3.3 inches in Westbrook. A Cocorahs observer reported 4.0 inches nearby, near the northern edge of the zone in Killingworth.

Winter Weather in SOUTHERN NEW LONDON, CONNECTICUT
From 27-FEB-23 22:00:00 to 28-FEB-23 08:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Cocorahs observers reported 4.0 inches in Groton, 3.0 inches in Niantic, 3.0 inches in Old Lyme, and 4.3 inches in Mystic. A trained spotter reported 3. 4 inches at 1 NNE Groton.