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DayCAST: Thu 12/20/18

Transitional Thursday Similar to what occurred the last time a weak trough clipped Colorado (one week ago), the storm that moved through yesterday has rapidly intensified as it progressed down to the Gulf Coast. This system will ride up the eastern seaboard in the coming days bringing widespread flooding potential to much of the Northeast. Trust me when I say they really …

DayCAST: Wed 12/19/18

All ingredients for a blustery Wednesday are coming together this morning as expected. We should see winds gradually increase in intensity through the morning across the Metro area as the nose of the jet max arrives overhead. Winds are definitely starting to pick-up in the Mountains and closer to the Wyoming border as of sunrise today. The graphic below shows …

DayCAST: Tue 12/18/18

The unseasonably warm stretch of weather continues Despite thick upper-level clouds developing yesterday afternoon and overnight, the storm system responsible has remained well to our south with minimal impacts across northern Colorado. The low pressure in question is vertically stacked (i.e. it's dying) and is located along the New Mexico and Texas border this morning. The forecast maps below show that …

DayCAST: Sun 12/16/18

Another quiet and mild day across the state of Colorado. Below shows the upper-level 250 mb jet stream across the CONUS today. Colorado is more or less sandwiched between the polar jet stream to our north and west and the subtropical jet to our south in Texas and the southeastern U.S. In between, high pressure is in place over Colorado, …

DayCAST: Sat 12/15/18

We couldn't ask for a better weekend. Mild temperatures remain today and tomorrow, and even next week (we'll discuss that below). The image below shows the mid-level pattern over the nation this afternoon. Yesterday's system which was in the Midwest is moving through the northeast today, bringing in periods of rainfall. A weak trough tied to a system in Canada …

*Premium* Weather Quiz: Cold Air Advection

BACKGROUND:  This week there is an active storm track laying siege to the western United States. A weak system is moving across Colorado on this Tuesday, with a stronger storm now heading ashore into the Pacific Northwest. This second storm will bring a potent cold front through the Front Range Wednesday evening around sunset. Meteorologists often use a quantity called temperature advection to …

DayCAST: Fri 12/14/18

Happy Friday everyone! We end the week with gorgeous weather. Below shows the mid-level height anomaly across the nation this afternoon. A low pressure system is moving onshore across the Pacific Northwest, bringing yet another round of heavy snowfall to British Columbia and Washington. Another area of low pressure is over Louisiana, which is bringing rainfall to much of the …

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