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Mon Update: The Front Range Forecast: Hot, dry summer weather

In Brief:

A ridge builds overhead and we get a taste of hot, dry summer weather.  Thunderstorms will return.

Monday Update:

Interesting climatology from the National Weather Service. BUT - DIA only made it to 87F today.

High temperatures are expected reach the 90-degree mark in Denver for the first time this year. The last 90-degree day last year occurred on 9/20/2022, 272 days ago. Our first 90-degree day last year occurred on 5/11/2022. By this time last year, Denver had reached 90 degrees for the 10th time. In the mountains,
expect gusty west to southwest winds this afternoon, with gusts 35-50 mph possible at times above timberline.

End Monday update.

The Forecast Discussion:

We have a ridge, finally, building over the state starting Sunday (Figure 2). This will give us our first good chance of 90F+ weather! (Figure 1)  We see quiet weather in the southwest and intermountain West (Figure 2).

figure1_06172023
Figure 1: the 10 day graphical forecast for Denver from weaatherunderground.com
figure2_06172023
Figure 2: the 500mb upper air forecast map for Sunday night from the GFS and tropicaltidbits.com
figure3_06172023
Figure 3: the Sunday forecast surface map from the NWS

The Longer Range Forecast:

Starting Wednesday, moisture returns and afternoon storm chances pick up again (Figure 1). Over the next 10 days, the rain is mainly confined to the eastern Plains of Colorado (Figure 4).

figure4_06172023
Figure 4: the 10 day GFS rainfall forecast from 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

56°F

UV Index
2 Low
Pressure
30.28 Steady
Visibility
4 miles
Dewpoint
50 °F
Humidity
81%
Wind
NNW 1.1 mph
Gust
3.2 mph
Wind Chill
56 °F

Hourly Forecast

Today
8 AM
63°F
Partly sunny
Today
9 AM
69°F
Partly sunny
Today
10 AM
73°F
Partly sunny
Today
11 AM
77°F
Partly sunny
Today
12 PM
80°F
Partly sunny
Today
1 PM
84°F
Partly sunny
Today
2 PM
86°F
Partly sunny
Today
3 PM
88°F
Partly sunny
Today
4 PM
89°F
Partly sunny
Today
5 PM
90°F
Intermittent clouds
Today
6 PM
88°F
Intermittent clouds
Today
7 PM
85°F
Intermittent clouds

7 Day Forecast

Intermittent clouds

Tuesday

90 °F

Intervals of clouds and sun


Clear

Tuesday Night

57 °F

Clear; good conditions for viewing the meteor shower


Mostly sunny

Wednesday

99 °F

Mostly sunny with the temperature approaching the record of 101 set in 1996


Clear

Wednesday Night

60 °F

Clear


Mostly cloudy

Thursday

97 °F

Mainly cloudy and very warm


Partly cloudy

Thursday Night

61 °F

Partly cloudy


Mostly cloudy

Friday

90 °F

Turning cloudy with a thunderstorm around in the afternoon


Intermittent clouds

Friday Night

60 °F

Partly cloudy


Intermittent clouds

Saturday

89 °F

Times of clouds and sun


Intermittent clouds

Saturday Night

57 °F

Clearing


Sunrise and Sunset

Sunrise
6:09 AM
Sunset
8:02 PM

Based on AccuWeather data