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Thursday Update: The Front Range Forecast: Slight chance of snow, cold Friday, then another warmup

In Brief:

Friday is chilly, windy, with a bit of snow, then we become dry and 'warm' again.

Thursday Update:

Another windy cold system will sweep down the state Friday.  You will really feel the chill. The I-25 cities will not see much except maybe Denver that may pick up an inch or two of snow (Figure 2 update). Other locations may see a dusting to an inch. Sadly, this is not a big storm for Colorado this time.

Figure2u_01132021
Figure 2 update: the 2 day snowfall total forecast for Colorado from weather5280.com and the GFS.

End Thursday Update.

Tuesday Update:

Other than a cold front on Friday that brings mountain snows and a chace of snow showers along I-25 (with a short cool down) - things remain dry and above normal for the next 10 days.  Sorry all!

Figure1u_01112021
Figure 1 update: the 10 day graphical forecast for Denver from weatherunderground.com

End Tuesday Update.

 

Forecast Discussion:

The storm played out as advertised.  It was a rough commute last night with blowing snow, icy conditions and fog at times. Figure 1 shows snow reports as of 7 a.m. Thursday.  Longmont got 4.5-6.5 inches. Boulder received 7-11 inches.  Figure 2 shows the Denver Metro where sites around Broomfield received 5-6 inches. Temperatures went down to +/- 0F. 

Figure1_01062022v2
Figure 1: The CoCoRaHS new snowfall reports for Thursday 7am. (Repaired).

 

Figure2_01062022
Figure 2: the CoCoRaHS snowfall reports as of Tuesday AM for the Denver Metro.

The Longer-Range Forecast:

There are about three weak cold fronts coming this week (Figure 3) that is powered by the trough marked in red in Figure 4.  The first one gives us a chance of of snow Saturday night.  Amounts look to be around a dusting to an inch of snow from Longmont to Broomfield (Figure 5).  I'll update as needed here. After that, we have a stretch of dry weather with highs around 50F with little additional snow in northern Colorado.  You can see evidence of a good southern Colorado storm sometime later in the 10-day forecast window.

 

Figure4_01062022
Figure 4: the 500mb upper air forecast map for Saturday PM from the GFS and tropicaltidbits.com
Figure5_01062022
Figure 5: the 5 day (10:1 ratio) total snowfall forecast from the GFS and weather5280.com
Figure6_01062022
Figure 6: the 10 day (10:1 ratio) total snowfall forecast from the GFS and weather5280.com

 


About the Author: John Ensworth

John Ensworth works from Longmont as the Principle Investigator for the NASA Science Mission Directorate Earth and space science education product review through the IGES (The Institute for Global Environmental Strategies – www.strategies.org).
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Current Weather

Sunny

Sunny

43°F

UV Index
3 Moderate
Pressure
30.21 Falling
Visibility
10 miles
Dewpoint
22 °F
Humidity
43%
Wind
N 0 mph
Gust
2.6 mph
Wind Chill
43 °F

12 Hour Forecast

Today
2 PM
41°F
Mostly sunny
Today
3 PM
42°F
Mostly sunny
Today
4 PM
40°F
Mostly sunny
Today
5 PM
37°F
Mostly sunny
Today
6 PM
34°F
Mostly clear
Today
7 PM
31°F
Mostly clear
Today
8 PM
30°F
Mostly clear
Today
9 PM
29°F
Mostly clear
Today
10 PM
28°F
Mostly clear
Today
11 PM
28°F
Mostly clear
Tomorrow
12 AM
28°F
Mostly clear
Tomorrow
1 AM
28°F
Mostly clear

7 Day Forecast

Sunny

Saturday

42 °F

Sunny


Partly cloudy

Saturday Night

25 °F

Partly cloudy


Mostly sunny

Sunday

49 °F

Partly to mostly sunny


Partly cloudy

Sunday Night

29 °F

Partly cloudy


Mostly cloudy

Monday

45 °F

Mainly cloudy


Cloudy

Monday Night

24 °F

Plenty of clouds; snow can make roads and sidewalks slippery, causing travel disruptions


Snow

Tuesday

32 °F

A.M. snow, up to 1"; otherwise, mostly cloudy and colder; snow can make roads and sidewalks slippery, causing travel disruptions


Clear

Tuesday Night

13 °F

Clear


Intermittent clouds

Wednesday

40 °F

Times of clouds and sun


Intermittent clouds

Wednesday Night

19 °F

Partly cloudy


Sunrise and Sunset

Sunrise
7:17 AM
Sunset
5:07 PM

Based on AccuWeather data

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