Skip to content

Tuesday Update: Longmont Weather Forecast: Seasonable, but dry weather - Snow??

In Brief:

Seasonable cool weather with little rain for the next week. But rain/snow next Tuesday/Wednesday??

Tuesday update:

The short term forecast, seasonably warm and dry conditions, is on track.  BUT I thought I'd give everyone a heads up that the GFS model is creating a snow storm for the mountains and nearby Plains for Tuesday/Wednesday next week (Figure 1 update).  This certainly might vanish from the forecast, but it has held strong for 3 days now in the model runs.  More later!!

Figure1u_10052021
Figure 1 update: the 10 day 10:1 snowfall ratio forecast from the GFS and weather5280.com

End Tuesday update.

Forecast Discussion:

Very seasonably cool/mild weather is the story for the next 10 days (Figure 1). We have northwest winds across the state with very little moisture around (Figure 2). Enjoy a walk in this example of wonderfulness.

Figure1_10022021
Figure 1: the 10 day graphical forecast from weatherunderground.com for Longmont, CO.
Figure2_10022021
Figure 2: the 500mb upper air forecast map for Monday noon from the GFS and tropicaltidbits.com

 

The Longer Range Forecast:

A ridge builds over the state by the start of the week, warming us to the lower 80's (Figure 3). This is only a bit above normal for this time of year. Our next (small) chance of rain arrives Wednesday with a shortwave (Figure 4 and Figure 1).  It doesn't look like a lot of moisture will fall on the plains, at present. The GFS gives only the southwestern slopes of Colorado a bit of rain over the next 5 days (Figure 5) and only the western slopes (mainly) over the next 10 days (Figure 6),

 

Figure3_10022021
Figure 3: the 500mb upper air forecast map for Wednesday noon from the GFS and tropicaltidbits.com
Figure4_10022021
Figure 4: the 500mb upper air forecast map for Sunday noon from the GFS and tropicaltidbits.com
Figure5_10022021
Figure 5: the 5 day precipitation total from the GFS and weather5280.com
Figure6_10022021
Figure 6: the 10 day precipitation total 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).
Read more


Comments


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

Be the first to read breaking stories. Allow browser notifications on your device. What are browser notifications?
No thanks