Monthly Archives: January 2015

Turning colder by Tuesday morning

12:15 PM, Sunday, January 18, 2015

Mild and somewhat breezy weather should continue through MLK Day, with perhaps a few snow showers moving into the northern mountain Monday.

A cold front on Monday night should make the Tuesday through Thursday period below average in temperature but not bitter cold (30s in the Boulder-Denver area for highs). No major snowfall is expected, but it will be more unsettled with periods of clouds and maybe a few intervals of light snow. I’ll update that possibility tomorrow.

Cold and damp through Tuesday

1:35 PM, Monday, January 12, 2015

There are breaks in the overcast over western Colorado this afternoon, but the Front Range region and eastern plains are likely to stay overcast and damp. Temperatures won’t rise much this afternoon, and Tuesday is likely to be only a few degrees warmer but still below freezing in many areas.

Little snow is expected along the Front Range and eastern plains of Colorado and Wyoming. But given the large & diffuse storm system to our west (that will pass well to the south), there is a small chance of some intermittent light snow Monday night into Tuesday evening. Accumulation should range from nothing to 1 inch, except an inch or two as you go south from the Colorado Springs area.

Western Colorado is more likely to see light snow accumulation Tuesday, with heavy snow (over a foot) likely in the San Juan Mountains of southwestern Colorado.

My next blog post will be on Sunday. Milder weather appears likely Wednesday afternoon into the weekend, with maybe a tendency for windy conditions by the end of the week.

Unsettled, cold weather Sunday afternoon through Tuesday

11:00 AM, Sunday, January 11, 2015

A large, diffuse storm system from the west isn’t expected to bring any heavy snow or arctic cold to the Front Range, but intermittent light precipitation and colder than average weather is expected late today through Tuesday.

Front Range and eastern plains:

A cold front should move through eastern Wyoming and Colorado this afternoon and bring a couple days of cold–but not bitter cold– weather. Today’s temperatures should begin to drop by mid afternoon in the Denver area. High temperatures are likely to be within a few degrees of freezing Monday and Tuesday.

Showery precipitation is likely Sunday afternoon into Monday morning with 1-2 inches of snow in the foothills and a trace to 1 inch on the plains. In the lower elevations the initial precipitation is likely to be rain, so watch for icy areas on the roads Sunday evening.  Monday and Tuesday are likely to have considerable clouds around with brief sunny intervals possible.  Although snow will be more probable west of the area, it is possible that there may be some more light accumulation, especially on Tuesday. A drier and milder period is likely to begin on Wednesday.

Mountains and west:

Widespread snow is likely to continue today with light accumulations in mountain areas of western Colorado and Wyoming. Monday will probably see a lull.  Then Monday night and Tuesday are expected to bring a large area of snowfall in the western mountains and valleys, with heavy snow appearing more likely in mountain areas south of I-70.

Weekend: Seasonable temperatures, some mountain snow Sunday

1:10 PM, Friday, January 9, 2015

Temperatures should warm up to average levels across Colorado and Wyoming this weekend, maybe even a little above average on Saturday. There’s a good chance for at least some light snow in the mountains on Sunday, and only a very small chance for snow along the Front Range by late Sunday.

The next cold front and chance for widespread snow along the Front Range is Sunday night or Monday, but it will likely be light amounts. In the long range it is becoming a little more probable that a mild period will occur in the mid to late part of next week.

Colder with some light drizzle or snow this evening

11:30 AM, Thursday, January 8, 2015

Temperatures this afternoon along the Front Range and eastern plains probably won’t climb much more, and may start to cool a bit.  Then around the sunset hour there is likely to be a more rapid turn to colder along with an increase in clouds (later along the southern Front Range).  Some areas of freezing drizzle and light snow are likely beginning this evening in the lower foothills and eastern plains. There should be less impact at Nederland’s elevation and little or no impact west of the continental divide.

By Friday morning a dusting to around an inch of new snow should be on the ground, and maybe a little ice from freezing drizzle and fog. Although the day should be mainly dry, there will probably be low clouds, flurries, and areas of fog around in the morning. Expect a cold day with temperatures staying below freezing after a morning low in the teens (maybe single digits in cold spots on the plains).

It appears the weekend will bring near average temperatures along the Front Range. The chance for light snow increases in the mountains (mainly north of I-70) by Sunday.

Cold Wednesday, milder Thursday, then cold Friday

12:00 noon, Tuesday, January 6, 2014

A very strong and cold high pressure system is moving south into the Great Plains, and the Front Range will be on the edge of that cold blast tonight and tomorrow. The shallow cold air will have a notable impact along the Front Range lower foothills and across the eastern plains, but little impact to the west side of the continental divide. Even Nederland may stay above the coldest air.

Expect the cold front to move into the Cheyenne area and the northeastern Colorado plains this evening, then the Denver-Boulder area in the 9PM-midnight period, and Colorado Springs after midnight. Little or no snow snow is expected, but low clouds and areas of ice fog and freezing drizzle are possible by Wednesday morning. Temperatures will probably stay below freezing all day Wednesday, and maybe in the teens out on the high plains.

Thursday should be a milder interval after a chilly start, and then Thursday night and Friday are likely to bring another cold, cloudy period from the foothills eastward across the plains.

Chinook winds & milder, then colder, then mild again

12:30 PM, Sunday, January 4, 2014

The temperature flip-flop is beginning. Much milder temperatures are likely over the next 48 hours, but with some strong Chinook winds in and along the Front Range Sunday night and Monday. Then it is likely to be cold again on Wednesday, probably mild Thursday, and maybe colder again at the end of the week. This flip-flop in temperatures will be mainly in eastern Colorado (including the Front Range) and southeastern Wyoming.

Western Colorado should be mainly dry with near to above average temperature this week. Some minor snow shower activity and gusty winds in exposed areas are likely north of I-70.

Front Range Wind

From Sunday night into Monday night the Front Range foothills are likely to have periods of strong westerly wind gusts into the 60-80 mph range. This will likely cause areas of blowing snow, especially when the wind first kicks in. Even along the foothills, places like Boulder and the western suburbs of Denver are likely to have some periods of strong winds gusting over 60 mph. Watch for blowing snow before temperatures get warm enough to start melting the snow (wet snow does not blow around very easily). Temperatures on Monday where the Chinook winds are blowing along the foothills should climb above 50.

Mid week cold:

The next cold front late Tuesday should make Wednesday a cold day. But the cold air will be shallow, so little or no snow is expected. Low clouds and maybe some areas of freezing drizzle are possible by Wednesday morning along the Front Range and in the Colorado/Wyoming eastern plains.