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Thursday Update: Longmont Weather Forecast: Mild and Dry for the Next Week

Figure2_11222021
Figure 2: the 500mb upper air map for Tuesday noon from tropicaltidbits.com

In Brief:

Dry mild weather continues for the next week.

Thursday/ Black Friday Update:

Friday will be VERY mild with highs in the upper 60's and lows around freezing.  The next week still looks warm and quiet.  Have fun Christmas shopping!

End Update.

Forecast Discussion:

Things continue to remain calm and unusually warm for the next 10 days (Figure 1). A cold front pushes down Tuesday afternoon with gusty winds (prompting elevated fire danger) and will cool us down to just a few degrees above normal instead of the almost 20 degrees above normal weather we have for the rest of the forecast period. A big ridge over the western states is to blame for all this dry warmth (Figure 2).

Thanksgiving Forecast:

We will be warming up after the cold front passage and will have dry clear weather with highs approaching 60F again with only near freezing temperatures at night. No travel problems at all!

Figure1_11222021
Figure 1: the 10 day graphical forecast for Longmont from weatherunderground.com

 

Figure2_11222021
Figure 2: the 500mb upper air map for Tuesday noon from tropicaltidbits.com

The Longer-Range Forecast:

Over the next 10 days, very little rain or snow is expected to fall on Colorado, however, a major winter storm with a few days of heavy snow and bitter cold temperatures is appearing around Dec. 4-6 on the long range models.  I won't map it out until we get closer (a model storm that far out can completely vanish by the time the date approaches). We are now setting the record for the latest recorded measurable snowfall in Denver.

 

Figure3_11222021
Figure 3: the 10 day precipitation total for Colorado from weather5280.com
Figure4_11222021
Figure 4: the 10 day snow total (10:1 ratio) total for Colorado from 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

Cloudy

Cloudy

47°F

UV Index
0 Low
Pressure
29.94 Steady
Visibility
7 miles
Dewpoint
27 °F
Humidity
46%
Wind
N 0 mph
Gust
4.3 mph
Wind Chill
47 °F

12 Hour Forecast

Today
8 PM
48°F
Mostly clear
Today
9 PM
47°F
Mostly clear
Today
10 PM
46°F
Mostly clear
Today
11 PM
47°F
Mostly clear
Tomorrow
12 AM
47°F
Partly cloudy
Tomorrow
1 AM
47°F
Intermittent clouds
Tomorrow
2 AM
47°F
Intermittent clouds
Tomorrow
3 AM
47°F
Intermittent clouds
Tomorrow
4 AM
46°F
Intermittent clouds
Tomorrow
5 AM
46°F
Intermittent clouds
Tomorrow
6 AM
46°F
Intermittent clouds
Tomorrow
7 AM
46°F
Hazy moonlight

7 Day Forecast

Mostly sunny

Saturday

60 °F

Mild with sunshine and patchy clouds


Partly cloudy

Saturday Night

46 °F

Patchy clouds


Intermittent clouds

Sunday

63 °F

Mild in the morning; otherwise, sun and areas of high clouds


Mostly cloudy

Sunday Night

18 °F

Much colder with thickening clouds


Mostly cloudy

Monday

38 °F

Mostly cloudy and much colder


Mostly cloudy

Monday Night

24 °F

Mostly cloudy


Mostly cloudy

Tuesday

46 °F

Mostly cloudy


Mostly cloudy

Tuesday Night

20 °F

Mostly cloudy


Mostly cloudy

Wednesday

57 °F

Mostly cloudy and not as cool


Showers

Wednesday Night

31 °F

Occasional evening rain and drizzle; otherwise, cloudy


Sunrise and Sunset

Sunrise
7:06 AM
Sunset
4:35 PM

Based on AccuWeather data

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