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Sun Update: The Front Range Forecast: Good storm chances

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Figure 3: the 5 day precipitation forecast from the GFS and weather5280.com

In Brief:

A healthy chance of afternoon thunderstorms and rain through the next 10 days.

Sunday Update:

My chaperone duties in Washington DC come to an end today.  A full update tomorrow!  Plenty of moisture and daytime heating plust a favorable upper air pattern means we continue with a good chance of showers for most of the week ahead.  Nothing severe on the plate.

Ens Sunday update.

Tuesday update:

The SPC graphic is not yet out today, but we have a Marginal risk of severe weather again today (1 out of 5). The primary risk is hail and high winds again.  Keep an eye on the western sky!

End Tuesday update:

The Forecast Discussion;

The pattern is for moisture and instability to increase a bit each day for the next 10 days (Figure 1). The severe threat moves off to the east a bit (Figure 2), but storms can produce hail and heavy rain and winds for a few minutes at any time (pulse storms - Figure 2).  We are quite warm for a few days, then cool as a trough moves in and increases rain chances a lot by Friday (Figure 1).

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

 

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Figure 2: the Day 2 (Monday) SPC forecast for thunderstorms and severe weather.

The Longer Range Forecast:

Over the next 5 days, we should see about a quater of an ince of precipitation in Longmont or Broomfield, unless a thunderstorm core hits your neighborhood (Figure 3). The increased precipitation chances later in the week may give us 1-2 inches of rain over that period (Figure 4). We are definitely in a wet pattern!

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Figure 3: the 5 day precipitation forecast from the GFS and weather5280.com
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Figure 4: the 10 day precipitation 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

72°F

UV Index
2 Low
Pressure
30.01 Falling
Visibility
8 miles
Dewpoint
47 °F
Humidity
40%
Wind
ESE 2.7 mph
Gust
6.4 mph
Wind Chill
73 °F

Hourly Forecast

Today
5 PM
72°F
Partly sunny
Today
6 PM
73°F
Mostly sunny
Today
7 PM
70°F
Mostly sunny
Today
8 PM
66°F
Mostly clear
Today
9 PM
63°F
Mostly clear
Today
10 PM
60°F
Mostly clear
Today
11 PM
58°F
Mostly clear
Tomorrow
12 AM
56°F
Mostly clear
Tomorrow
1 AM
55°F
Mostly clear
Tomorrow
2 AM
54°F
Mostly clear
Tomorrow
3 AM
53°F
Clear
Tomorrow
4 AM
51°F
Clear

7 Day Forecast

Partly sunny w/ showers

Sunday

73 °F

Clouds giving way to some sun


Clear

Sunday Night

49 °F

Clear


Partly sunny w/ t-storms

Monday

86 °F

Partly sunny and warmer; a thunderstorm around in the afternoon


Partly cloudy

Monday Night

52 °F

Partly cloudy


Partly sunny w/ t-storms

Tuesday

72 °F

Times of clouds and sun with a thunderstorm around in the afternoon


Mostly cloudy

Tuesday Night

50 °F

Increasing clouds


Mostly cloudy w/ t-storms

Wednesday

67 °F

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


Clear

Wednesday Night

50 °F

Clear


Mostly sunny

Thursday

75 °F

Mostly sunny and pleasant


Clear

Thursday Night

47 °F

Clear


Sunrise and Sunset

Sunrise
6:40 AM
Sunset
7:11 PM

Based on AccuWeather data