Saturday, July 31, 2010

Model Runs

NAM: Rain early this morning until noon or so, then clearing with chance for showers. Enlarged storm system to affect area on Day 10.

GFS: Rain continuing in area until noon then clearing with chance of showers. Storm system starts to slide into region on Day 10.

Summary: Both models are remarkably close together in today's run. However, the GFS model puts the storm system to begin affecting the area with stronger storms and showers later in Day 10 possibly into Day 11. The NAM puts the system to begin affecting the area with the main storms in Day 10, earlier than the GFS. Both models have rain clear out by noon today with chances of showers for the rest of the day.

Friday, July 30, 2010

300th post

Weather Word

Model Names

NAM- North American Model
GFS- Global Forecasting System

NAM and GFS model runs

NAM: The NAM model displays rain in our area in the 36-57 hour periods, also known as Saturday afternoon through Sunday afternoon has rain. On Saturday and possibly very late evening on Saturday there could be occasional showers popping up in our area.

GFS: The GFS model displays rain during hours 30-54, which is also known as one full day in Saturday afternoon till Sunday Afternoon. Showers will be present Friday afternoon this week, but will be extremely scattered if not isolated.

Summary: Both models are predicting rain throughout the weekend.

Thursday, July 29, 2010

Weather Word: Critical Thickness

Critical Thickness is used in winter weather forecasting to define the line between rain and snow falling in a certain region.