SACRUS

2/21 18z Summary Total QPF NYC / Snow 10:1 NYC SREF: 2.1 / 19.6 NAM: 2.8 / 27.6 NAM 3K: 2.2 / 21.6 ICON: 1.3 / 12.9 RGEM: 1.1 / 11 GFS: 1.7 / 17.1 GFS AI AIGFS: 1.3 / 12.7 UKMET: 1.7 . 15.2 GEFS Mean : 1.8 / 18.2 Euro: 1.3 / 11.1 Euro AI AIFS: 1.2 / 11.4

2/21 18z SREF Total QPF 2/22 - 2/23-24 Mean Snow 10:1

NYC : 16 LGA 17.4 ISP : 20 JFK : 19.1 EWR: 18.6

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2/21 12z Summary Total QPF 2/22 -2/23-24 NYC / Snow 10:1 NYC SREF: 1/8 / 17.1 NAM: 2.5 / 24.1 NAM 3k: 2.2 / 21.6 ICON: 1.4 / 13.9 RGEM: 1.3 / 13.1 GFS: 2.0 / 20.3 GFS AI AIGFS: 1.4 / 13.8 GGEM: 1.5 / 14.7 GEFS: 1.8 / 17.8 UKMET: 1/2 / 12.9 Euro : 1.0 / 10.2 Euro AI AIFS: 1.3 / 12.6 ----------------------------------------------------------------------------------------------------- Mean / Average (All Models Included) Total QPF (NYC): 1.64 inches 10:1 Snowfall (NYC): 16.8 inches

Updated with the Uero and Euro AI AIFS

2/21 12z Euro Total QPF 2/22 - 2/23-24 Snow 10:!

2/21 12z EURO AI AIFS Total QPF 2/22-2/23-24 Snow 10:1

Updated with UKMET

UKIE Cyclone

2/21 12z UKMET Total QPF 2/22-2/23- 24 Snow 10:1

Track / speed more crucial on the 12z suite all looking good - great. RGEM/ICON AIGFS a bit quicker than GFS/NAM. The QPF will be better honed in on later 18z/00z and tomorrow with meso models. At the time Nam/GFS more robust but banding likely under done on the globals in general. There will likely (as occurs in these rapidly developing storms) bands that drop 0.5 or more in 2-3 hours / 3 - 6 inches of snow.

Updated with GEFS

2/21 12z GEFS Total QPF Mean 2/22- 2/23-24 SNow 10:1

Updated with GGEM

2/21 12z GGEM Total QPF 2/22 - 2/23-24 Snow 10:1

GGEM 992 off DelMarVa

Updated GFS

2/21 GFS AI AIGFS Total QPF 2/22 - 2/23-24 Snow 10:1

2/21 12z GFS AI AIGFS

2/21 12z GFS Total QPF 2/22 - 2/23 -24 Snow 10:1

GFS 984 off DelMarVa

Updated with ICON and RGEM