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Sunday Update The Front Range Forecast: Heat and a few storms

In Brief:

Temperatures above normal with small afternoon storm chances.  A Colorado summer.

Sunday update:

We have warm and quiet weather for the next few days in Colorado but all eyes are on the rapidly weakening remains of (now) tropical storm Hilary. Many desert locations will receive a year's worth of water in a day or two with some mountain locations topping a foot of rain. This will be the headlines as the week begins. 

Locally, unrelated to Hilary, we should see rain and cooler weather returning later in the week.  A full update coming soon!

figure2_08202023
Figure 2 update: the water vapor satellite image from Sunday AM and NOAA.

End Sunday update.

Friday update:

The big news is the major hurricane headed for southern California where a widespread 2-5 inches of rain will fall this week (Figure 1 update). The storm remains arc through Idaho and in move into Canada.  Locally, we have some afternoon storm chances and temperatures about 5-10 degrees above average.

Another interesting note is the forecast of, what looks like a big tropical system, moving in to the Gulf and effecting Florida and the East Coast.  Interesting.

 

figure1_08182023
Figure 1 update: the total precipitation forecast from the GFS for the next 14 days and tropicaltidbits.

End Friday update.

The Forecast Discussion:

We start the weekend a bit below normal as temperatures go with a small chance of a wandering afternoon thunderstorm or two (Figure 1). Moisture over the regions is a pretty good but the lower atmosphere is fairly dry (Figure 2).  A pretty strong cold front arrives Sunday morning dropping us to the 70's in the low lands (Figure 3) but no real change to the small chance of a storm or two.

We dry out further as the week begins and temperatures begin to climb again. We reach temperatures a bit above average by Tuesday as the big high, that has been baking New Mexico and Texas for the mid-summer, edges northward again.

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Figure 1: the 10 day graphical forecast for Denver from weatherunderground.com
figure2_08121023
Figure 2: the precipitatable water forecast for Sunday morning from the GFS and tropicaltidbits.
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Figure 3: the Sunday noon surface temperature departure from normal map for noon Sunday from the GFS and tropicaltidbits.com

The Long Range Forecast:

Rainfall over the next 5 days (Figure 4) will be spotty and light (for most places).  Southern counties may pick up heavier precipitation. Over the next 10 days, more of the state should see those wandering storms.

figure4_08121023
Figure 4: the precipitation forecast for the next 5 days from the GFS and weather5280.com
figure5_08121023
Figure 5: the precipitation forecast for the next 10 days 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).
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Current Weather

Clear

Clear

35°F

UV Index
0 Low
Pressure
30.3 Steady
Visibility
8 miles
Dewpoint
28 °F
Humidity
75%
Wind
W 1.1 mph
Gust
2.2 mph
Wind Chill
35 °F

Hourly Forecast

Today
10 PM
34°F
Mostly clear
Today
11 PM
34°F
Mostly clear
Tomorrow
12 AM
33°F
Mostly clear
Tomorrow
1 AM
32°F
Mostly clear
Tomorrow
2 AM
32°F
Mostly clear
Tomorrow
3 AM
31°F
Mostly clear
Tomorrow
4 AM
31°F
Mostly clear
Tomorrow
5 AM
30°F
Mostly clear
Tomorrow
6 AM
30°F
Mostly clear
Tomorrow
7 AM
31°F
Partly cloudy
Tomorrow
8 AM
33°F
Partly sunny
Tomorrow
9 AM
36°F
Partly sunny

7 Day Forecast

Mostly sunny

Tuesday

56 °F

Mostly sunny and mild


Partly cloudy

Tuesday Night

30 °F

Patchy clouds


Intermittent clouds

Wednesday

60 °F

Mild with times of clouds and sun


Mostly clear

Wednesday Night

32 °F

Mainly clear


Mostly sunny

Thursday

61 °F

Mostly sunny and mild


Intermittent clouds

Thursday Night

30 °F

Partly cloudy


Snow

Friday

36 °F

Much colder with periods of snow, accumulating an inch or two


Snow

Friday Night

17 °F

Colder with periods of snow, accumulating an inch or two; storm total snowfall 1-3 inches


Partly sunny w/ flurries

Saturday

37 °F

A couple of morning flurries; otherwise, clouds yielding to sun


Intermittent clouds

Saturday Night

17 °F

Partly cloudy


Sunrise and Sunset

Sunrise
7:07 AM
Sunset
4:35 PM

Based on AccuWeather data