Tuesday Satellite & Arctic Blast

Written by on November 1, 2013 in NatGasWeather - No comments

Big Arctic Blast and Winter Storm Tracking Across Western US

 

A major Arctic blast continues to power through the northern Rockies and will sweep into the Plains Wednesday.  This morning water vapor satellite analysis distinctly shows an unseasonably cold and strong jet stream crashing into the western US.  The jet will help develop a strong winter storm which tracks across the northern US the next several days with moderate to heavy snowfall and strong winds, rapidly increasing heating demand across impacted regions.  The comma head of the developing low is now showing up nicely over Montana and into North Dakota along with a strong band of precipitation with the cold front racing through Nevada and Utah.  This is the most pronounced feature as the pattern is fairly disorganized and sloppy over the rest of the US with bands of clouds and a few showers.  The central and eastern US will continue to warm the next several days waiting on the cold air to track across the country, which will take several days.

 

Note the image below showing the 24 hour temperature changes from Monday morning compared to today.  Of interest are the impressive temperature drops of 30-40°F over the northern Rockies and heading for the Plains.  The actual temperatures aren’t super impressive yet, but the 24 hour changes are and will make it easy to track where the cold air is advancing.   Warm southerly winds ahead of the front is driving the warmer 24 hour temperature changes across the central US

1)  Strong jet stream and strengthening winter storm.

2)  High pressure ridging into the central and eastern US, providing a gradual warming trend.

 

Tuesday Morning Water Vapor Satellite Analysis

Tuesday Morning Water Vapor Satellite Analysis

 

 

24 hour temperature changes from yesterday (Monday).  Note the extreme temperature drops of 30-40 degrees over the Rockies and portions of the west.  It will be easy to track where the cold blast is by seeing where the big temperature drops occur.

24 hour temperature changes from yesterday (Monday). Note the extreme temperature drops of 20-40 degrees over the Rockies and portions of the west. It will be easy to track where the cold blast is by seeing where big temperature drops occur.

Leave a Comment