Friday, March 14, 2008

Active March

Time to catch up on my bloging...
So far March has had an active weather track. Recently the models seem to have a hard time progging these spring like storms. The GFS for the last four days has had a significantly strong trough impacting the Front Range area on Sunday and Monday leaving a mess of rain and much accumulating snow. However just yesterday the GFS is throwing this main area of energy south of Colorado which leaves only light accumulations for the Front Range area.

Zonal westerly flow is bringing Pacific moisture over the mountains and onto the plains in the form of rain on the plains and heavy snow in the mountains. For the remaining part of the week and the weekend mostly zonal flow with small meridional perturbations in the flow. Saturday night increasing SW flow ahead of the next trough will bring a development of light clouds through Sunday morning. As the trough slowly continues to dig south prominant SW flow through Sunday evening with increasing clouds and light precip, mostly rain and a snow mix at night, for Sunday night and Monday. By Tuesday morning the system starts to eject out and up to the Great Plains. On Tuesday a ridge is building with NW flow and possibly some light clouds. Zonal flow appears to dominate for the remaining part of the mid week.