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Wed Update: The Front Range Forecast: Mild now, snow Friday?

In Brief:

Mild now until a chance of Friday snow.  Warming after that!

Wednesday Update:

We remain a bit above normal for temperatures until a front arrives Thursday PM.  The snow totals will go from zero just east of I-25 to 4-5 inches 10 miles west of I-25 below the Front Range Mountains (Figure 1 update).  This is a brief (6-12 hour) duration storm that will be replaced by a warming trend that takes us to the 60F for highs early in the week.  Drive safely!

figure1u_01242024
Figure 1 update: the 4 day snowfall total forecast (10:1 ratio) from the GFS and weather5280.com

End Wednesday update.

The Front Range Forecast:

After a (dry) cold snap on the Plains at the end of the week, we enter a long quiet stretch (Figure 1). We'll see temperatures above normal (Figure 2) much of the next 10 days with only a brief cool down and (at this time) only a minor chance of snow.

figure1_01202024
Figure 1: the 10 day graphical forecast for Longmont from weatherunderground.com
figure2_01202024
Figure 2: the 2m surface temperature anomaly (departure from normal) map for Monday noon from the GFS and tropicaltidbits.com

The Long Range Forecast:

The western side of the state won't be as quiet. Over the next 5 days, we'll see a trace to a couple of inches in the high country (Figure 3). Better snow amounts will pile up over the following 5 days (Figure 4).  Sorry I don't have more to say!

figure3_01202024
Figure 3: the 5 day snowfall (10:1) forecast from the GFS and weather5280.com
figure4_01202024
Figure 4: the 10 day snowfall (10:1) forecast from the GFS and weather5280.com

 


About the Author: John Ensworth

John Ensworth used to work from Longmont as the PI for the NASA through the IGES (The Institute for Global Environmental Strategies). He now teaches technology, algebra, astronomy, meteorology, film school, and Lego robotics to middle/high school.
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Current Weather

Partly sunny

Partly sunny

81°F

UV Index
5 Moderate
Pressure
30.14 Steady
Visibility
6 miles
Dewpoint
59 °F
Humidity
47%
Wind
NE 2.2 mph
Gust
5.3 mph
Wind Chill
81 °F

Hourly Forecast

Today
4 PM
83°F
Showers
Today
5 PM
84°F
Intermittent clouds
Today
6 PM
82°F
Intermittent clouds
Today
7 PM
79°F
Intermittent clouds
Today
8 PM
79°F
Intermittent clouds
Today
9 PM
76°F
Partly cloudy
Today
10 PM
72°F
Partly cloudy
Today
11 PM
69°F
Intermittent clouds
Tomorrow
12 AM
67°F
Intermittent clouds
Tomorrow
1 AM
65°F
Partly cloudy
Tomorrow
2 AM
64°F
Mostly clear
Tomorrow
3 AM
63°F
Clear

7 Day Forecast

Mostly cloudy w/ showers

Saturday

84 °F

Clouds and breaks of sun with a shower in places this afternoon; high levels of ozone will lead to poor air quality


Partly cloudy

Saturday Night

58 °F

Partly cloudy


Partly sunny w/ showers

Sunday

94 °F

Partly sunny with a passing shower in the afternoon


Partly cloudy

Sunday Night

61 °F

Partly cloudy


Mostly cloudy

Monday

94 °F

Considerable cloudiness


Mostly clear

Monday Night

60 °F

Clear to partly cloudy


Intermittent clouds

Tuesday

92 °F

Sun through high clouds


Partly cloudy

Tuesday Night

60 °F

Partly cloudy


Intermittent clouds

Wednesday

81 °F

Not as warm with times of clouds and sun; a thunderstorm in spots in the afternoon


Intermittent clouds

Wednesday Night

58 °F

An evening thunderstorm; otherwise, partly cloudy


Sunrise and Sunset

Sunrise
5:41 AM
Sunset
8:30 PM

Based on AccuWeather data