Author: Ben Castellani (Page 267 of 358)

A few flurries No changes are needed to the under-lying forecast we posted yesterday. A weak system will be moving through this afternoon and evening. After a brisk morning in the teens with sunshine, clouds will build by late morning as the system approaches. This would have been a great day to show some GOES-16 imagery of the approaching system. However, …

Nearly the entire continental United States, with the exception of the extreme western coast, is entrenched today within a mid-level trough of low pressure. The trough axis extends southward from the Hudson Bay in eastern Canada, into the Gulf of California. It's actually fairly remarkable!  This trough is bringing a somewhat rare occurrence of northeasterly flow at 500 mb to Colorado.... …

We have a VERY dry airmass in place today across Colorado. Column water vapor readings are only around 0.05 to 0.10"....about as low as it can get in Denver! The 500 mb vorticity map below shows an elongated trough stretching from the Great Lakes, south and west into southern California. Cool northerly flow is in place aloft across Colorado. With …

We close out the month of November on a calm note! West northwest flow will be in place through the depth of the atmosphere. Temperatures will be pleasant in the 50's today with beautiful blue skies. The animation below of 850 mb temperatures from the GFS ensemble begins today and runs through Sunday. Very warm conditions will persist for the next …