Tuesday, November 14, 2017

ECMWF Versus GFS At 168 Hours

The operational versions of the ECMWF and GFS are HUGE at 168-hours (VT 00 UTC 21 November), over both eastern North America and the east Pacific. Top graphics are the 500 mb forecasts and the bottom two are the surface forecasts. Note the surface pressure difference south of Anchorage - ~964 mb in ECMWF and ~ 991 mb in the GFS - quite something. The little bowling ball short wave that ECMWF forecasts rolling toward Arizona could also be interesting.

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