MERIT analyses currently include four cases of interest. All simulations were run through the testing framework established by the DTC for the FV3GFS to produce baseline results using the Model Evaluation Tools (MET) and python plotting tools. Seven- to twelve-day forecasts were run with the FV3 model for each case with 6-hourly output. Objective verification was conducted for surface and upper-air temperature, specific (relative) humidity and wind speed as well as 6-hr precipitation accumulation. Reports for each case study can be found on the right-hand side of this webpage. Interested parties may also request the full suite of results by contacting a team member.

FV3GFS Cases

East Coast Blizzard: 18 January 2016

• Heavy snowfall over parts of the Mid-Atlantic and Northeast US producing up to 36" from 22nd - 24th January.

Louisiana Flooding: 12 August 2016

• Heavy rainfall in southern Louisiana over a week-long period, with totals exceeding 20" in some areas, resulting in catastrophic flooding.

Hurricane Matthew: 29 September 2016

• A category 5 hurricane that tracked through the Caribbean, causing widespead damage to several islands, before moving along the Southeast Coast of the US, where it continued to produce heavy rainfall and widespread flooding in four states..

Severe Storm Outbreak: 18 May 2017

• A two day outbreak, affecting Texas to Arkansas, causing an estimated $2.12 million in damages.