Skip to content
Join our Newsletter

The Front Range Forecast: Snow totals, rain this week, then heat

In Brief:

The week starts cool and wet then the heat returns.

Forecast Discussion:

The snowfall reports are coming in (as of 7am) while the storm seems to have ended earlier than expected. Longmont received about 1.5 inches (though there are a couple of higher reports, 4 and 5 inches, I'm not sure about those- Figure 1). Boulder received 5-7 inches.  Broomfield got about 5-6 inches. Most locations received about 3/4th of an inch of water.

Our next front arrives Sunday afternoon followed by some low elevation rain (about a quarter inch) and mountain snows (Figure 2 and 3).

 

Figure0_05212022
Figure 1: the snowfall totals from CoCoRaHS as of Saturday 7am.
Figure1_05212022
Figure 2: the 10 day graphical forecast for Denver from weatherunderground.com
Figure2_05212022
Figure 3: the surface analysis map for Sunday from NOAA.

The Longer Range Forecast:

Yet another front arrives Monday afternoon with maybe 1/3 ro 1/2 inch of rain (Figure 2 and 5). This is driven by another healthy upper air trough (Figure 4). There is thunder possible with both Sunday's and Monday's fronts (Figure 6).

Over the next 5 days, Longmont should see about 3/4th inch of rain.  Broomfield should do better and top an inch. I-25 north of Denver should remain snow free, but the nearby mountains will get buried (Figure 7).

The heat really returns Thursday through Saturday until a Saturday front cools us a bit and brings back a few thunderstorms.

Figure4_05212022
Figure 4: the 500mb map for Tuesday from the GFS and tropicaltidbits.com
Figure5_05212022
Figure 5: the surface analysis map for Monday from NOAA.
Figure3_05212022
Figure 6: the severe and thunderstorm forecast for Monday from the SPC.
Figure6_05212022
Figure 7: the 5 day precipitation total forecast from the GFS and weather5280.com
Figure7_05212022
Figure 7: the 5 day snowfall total 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.
Read more


Comments


Current Weather

Sunny

Sunny

75°F

UV Index
5 Moderate
Pressure
30.23 Steady
Visibility
6 miles
Dewpoint
42 °F
Humidity
30%
Wind
NNE 4 mph
Gust
8.9 mph
Wind Chill
75 °F

Hourly Forecast

Today
12 PM
75°F
Intermittent clouds
Today
1 PM
76°F
Intermittent clouds
Today
2 PM
76°F
Intermittent clouds
Today
3 PM
75°F
Intermittent clouds
Today
4 PM
73°F
Intermittent clouds
Today
5 PM
71°F
Intermittent clouds
Today
6 PM
68°F
Mostly cloudy w/ t-storms
Today
7 PM
65°F
Intermittent clouds
Today
8 PM
63°F
Intermittent clouds
Today
9 PM
60°F
Intermittent clouds
Today
10 PM
58°F
Intermittent clouds
Today
11 PM
56°F
Intermittent clouds

7 Day Forecast

Partly sunny w/ t-storms

Tuesday

76 °F

Not as warm with times of clouds and sun; a thunderstorm in the area this afternoon; thunderstorms can bring gusty winds, hail and localized flooding


Mostly cloudy w/ t-storms

Tuesday Night

51 °F

A thunderstorm this evening; otherwise, increasing clouds


Mostly cloudy w/ t-storms

Wednesday

72 °F

Some sun, then turning cloudy with a couple of thundershowers in the afternoon


Partly cloudy w/ t-storms

Wednesday Night

50 °F

A couple of showers and a thunderstorm in the evening; otherwise, clearing


Mostly sunny

Thursday

72 °F

Mostly sunny and pleasant


Clear

Thursday Night

45 °F

Clear


Sunny

Friday

81 °F

Plenty of sunshine


Partly cloudy

Friday Night

47 °F

Partly cloudy


Mostly sunny

Saturday

85 °F

Mostly sunny


Clear

Saturday Night

53 °F

Clear


Sunrise and Sunset

Sunrise
6:42 AM
Sunset
7:08 PM

Based on AccuWeather data