Powerful cold front blasting Plains with high winds and blowing dust

A strong cold front is ushering in markedly colder air for much of the central and eastern U.S. over the next several days.  The cold front today is highlighted by extreme temperature contrasts over the Southern Plains, with high winds and blowing dust along and behind the front as it surges southward through Colorado and Kansas.  Figures 1 and 2 show the VIIRS dust RGB images over the Plains at 1906 to 2049 UTC, respectively.  One can easily identify the increase in dust coverage (given by the darker pink colors) by 2049 UTC over southeastern Colorado as the front propagates southward.  A corroborating surface analysis valid at 2043 UTC in Figure 3 depicts visibility reductions at Lamar, CO (LAA; 2 miles), La Junta, CO (LHX; 1 mile), and Pueblo, CO (PUB; 3 miles) in southeastern Colorado.  Notice temperatures in the 80s across the Oklahoma and Texas Panhandles, while temperatures are in the 20s and 30s across northeastern Colorado and northwestern Kansas.  Quite the contrast!

Figure 1.  VIIRS dust RGB image valid at 1906 UTC 10 November 2014.

Figure 1. VIIRS dust RGB image valid at 1906 UTC 10 November 2014.

Figure 2.  Same as Figure 1, except valid at 2109 UTC 10 November 2014.

Figure 2. Same as Figure 1, except valid at 2049 UTC 10 November 2014.

Figure 3.  Surface analysis valid 2043 UTC 10 November 2014.

Figure 3. Surface analysis valid 2043 UTC 10 November 2014.

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s