MRF SEA LEVEL PRESSURE/1000-500 THICKNESS FCSTS VALID WEDNESDAY MORNING (12Z 1/26)

156 HR FCST FROM WEDNESDAY NIGHT (00Z 1/20) 132 HR FCST FROM THURSDAY NIGHT (00Z 1/21)
108 HR FCST FROM FRIDAY NIGHT (00Z 1/22) 84 HR FCST FROM SATURDAY NIGHT (00Z 1/23)

Several runs of the MRF (and other medium-range forecasting models as well) indicated that a significant east coast storm was possible on Wednesday. The 132-hour forecast from the run on the 21st was of particular concern. Medium-range forecasters gave alert about the threat of a Wednesday storm, so some emergency management officers along the east coast were actually somewhat prepared for the Tuesday storm because they were bracing for a possible event a day later.