Category: Premium Content (Page 285 of 452)

An overcast Tuesday The big change for today will be the introduction of widespread mid and upper-level clouds. These are associated with a broad but very weak trough axis embedded in the southwest flow (see below). Fun fact: both the GFS and NAM models are forecasting precipitable water values near all-time record highs for the date this morning in the …

Pleasant afternoon today. Weak northwest flow is still present in the mid-levels (below). However, high pressure is not far behind for our day tomorrow, anchored over southern California. Lots of sunshine will be the norm today for highs to top out in the middle 40's. Normally, under this pattern, we would forecast higher temperatures. But with the remaining northwest flow, …

Colder temperatures today, but MUCH less windy! After yesterday's gusty westerly winds, the atmosphere relaxes today to allow for a relatively calm afternoon. Shown in the infrared water vapor satellite image below, a strong storm system up in Minnesota has continued to push northward. It dropped several inches of snow in the Upper Midwest on its trek to Canada. Over …

A windy and chilly day today as a strong system tracks through the state this afternoon and evening. While the mountains will see cold and snow into the late evening hours with 3 to 7 inches expected, the Plains will see highs start out near the upper 40's to 50 degrees. Partly to Mostly Cloudy skies will give way to …

Cloudy with a chance of Denver Cyclone The storm track has been harsh this week with frequent weak shortwaves pushing across the area. These have produced some Mountain snow, but not much of anything elsewhere outside of a little wind. Today we will be under a brief ridge of high pressure aloft with southwest flow. This will translate into quieter …

Cool & quiet A weak frontal boundary pushed across the Denver Metro area last night associated with the trough that skirted the region and produced light snow accumulations in the Mountains. The cool front last night was barely noticeable through surface observations, but cooler air has clearly filtered in aloft. The NAM model forecast 700 mb temperature maps below show …

Mountain wave last evening Did you notice the strong winds last night? They were brief, but they did arrive right on schedule during the early evening hours in and near the Foothills. The graph below shows winds (red) and gusts (blue) at the NCAR Mesa Lab in south Boulder. Winds were strongest between 5 and 7 PM, gusting to nearly …