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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

Rain

Rain

66°F

UV Index
1 Low
Pressure
29.9 Rising
Visibility
8 miles
Dewpoint
32 °F
Humidity
28%
Wind
N 6.7 mph
Gust
13.1 mph
Wind Chill
66 °F

Hourly Forecast

Today
6 PM
60°F
Thunderstorms
Today
7 PM
58°F
Partly sunny
Today
8 PM
55°F
Rain
Today
9 PM
53°F
Rain
Today
10 PM
50°F
Rain
Today
11 PM
48°F
Rain
Tomorrow
12 AM
47°F
Rain
Tomorrow
1 AM
47°F
Cloudy
Tomorrow
2 AM
47°F
Rain
Tomorrow
3 AM
47°F
Rain
Tomorrow
4 AM
47°F
Rain
Tomorrow
5 AM
46°F
Rain

7 Day Forecast

Mostly cloudy w/ t-storms

Wednesday

71 °F

Turning cloudy; a thundershower in parts of the area this morning followed by thundershowers this afternoon


Rain

Wednesday Night

46 °F

Rain and drizzle


Partly sunny w/ showers

Thursday

59 °F

A touch of rain in the morning; otherwise, cooler with increasing amounts of sun


Partly cloudy w/ showers

Thursday Night

40 °F

A couple of showers in the evening; otherwise, partly cloudy


Mostly cloudy

Friday

68 °F

Mostly cloudy


Clear

Friday Night

38 °F

Clear


Mostly sunny

Saturday

77 °F

Mostly sunny, pleasant and warmer


Mostly clear

Saturday Night

41 °F

Mainly clear


Mostly cloudy

Sunday

74 °F

Sun followed by clouds; breezy in the afternoon


Intermittent clouds

Sunday Night

49 °F

Windy in the evening; becoming partly cloudy


Sunrise and Sunset

Sunrise
6:02 AM
Sunset
7:54 PM

Based on AccuWeather data