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Sunday Update: The Front Range Forecast: Wandering Thunder

In Brief:

Warm temperatures and afternoon storms set up.

Sunday Update:

Temperatures are quite warm this week with moisture coming into the state from the Gulf. We'll see afternoon thunderstorms most days with a bit more of a cool down and more water Wednesday with a brief cool front passage.

Spring is settling in.  I'm thinking that any I-25 snow, between now and June, is looking very unlikely.

figure1u_05122024
Figure 1 update: the 10 day graphical forecast for Longmont from weatherunderground.com

End Sunday Update.

The Forecast Discussion:

A short wave ridge is moving in pushed by a short wave trough (Figure 2) that will rapidly warm us up this weekend (Figure 1), then brings fairly strong winds to the Front Range (Figure 3) Monday and Tuesday. See the Longer Range Forecast, below, for the end of the week.

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

 

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Figure 3: the surface wind speed forecast map from the GFS and weather5280.com

 

The Longer Range Forecast:

The next 5 days sees precipitation (rain and snow - Figures 4 and 5) confined to the mountains. A broad trough and cut-off low moves in for the end of the week bringing us an extended period of cool wet weather.  I don't see any snow for I-25 folks through mid-month. Was that "it" for snow this side of Summer?

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Figure 4: the precipitation forecast map from the GFS and weather5280.com
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Figure 5: the 10:1 ratio snowfall forecast map 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

Sunny

Sunny

59°F

UV Index
4 Moderate
Pressure
29.76 Falling
Visibility
8 miles
Dewpoint
13 °F
Humidity
16%
Wind
SSE 7.1 mph
Gust
13.1 mph
Wind Chill
59 °F

Hourly Forecast

Today
2 PM
63°F
Partly sunny
Today
3 PM
65°F
Partly sunny
Today
4 PM
67°F
Partly sunny
Today
5 PM
65°F
Partly sunny
Today
6 PM
62°F
Mostly sunny
Today
7 PM
58°F
Mostly sunny
Today
8 PM
55°F
Cloudy
Today
9 PM
51°F
Cloudy
Today
10 PM
48°F
Intermittent clouds
Today
11 PM
44°F
Partly cloudy
Tomorrow
12 AM
43°F
Clear
Tomorrow
1 AM
42°F
Clear

7 Day Forecast

Partly sunny

Tuesday

67 °F

Partly sunny; mild this morning, becoming breezy and pleasant this afternoon


Partly cloudy

Tuesday Night

35 °F

Windy this evening; partly cloudy


Sunny

Wednesday

70 °F

Mild with plenty of sunshine; breezy in the afternoon


Clear

Wednesday Night

35 °F

Clear


Mostly cloudy

Thursday

67 °F

Mostly cloudy and mild


Mostly cloudy

Thursday Night

36 °F

Rather cloudy, turning windy late with a shower in spots


Showers

Friday

51 °F

Very windy; cloudy and cooler with periods of rain in the afternoon


Mostly cloudy w/ flurries

Friday Night

27 °F

A few flurries in the evening; otherwise, partly cloudy


Cloudy

Saturday

49 °F

Considerable cloudiness with a shower in spots in the afternoon


Intermittent clouds

Saturday Night

33 °F

Turning out clear


Sunrise and Sunset

Sunrise
7:19 AM
Sunset
7:03 PM

Based on AccuWeather data