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Mon Update: The Front Range Forecast: More warmth, little rain

In Brief:

Near record heat and little chance of rain.

Monday Update:

The great western ridge moves in again bringing back late season 80's for highs.  The normal high temperature is only 65F now - this is really warm. Records for these dates are still a bit warmer, in the mid to upper 80's. We see a hint of cool weather and showers about 9 days from now, but that can certainly change.

Stay tuned!

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Figure 2 update: the 10 day graphical forecast for Longmont from weatherunderground.com

End Monday update.

 

Special Note:  

This Saturday morning, we'll have a partial eclipse of the sun peaking around 10:30am.  This eclipse will, at no moment, be safe to look at in ANY WAY except by certified eclipse glasses (undamaged and new) or a telescope with appropriate front end solar filtering.

I will be opening the Cherrywood Observatory for people to come look.  Please do not bring any viewing aids (like binoculars) or welder goggles.  To find my address and details, search for the Cherrywood Observatory eclipse on Nextdoor.  I hope to see you there.

Thur Update:

The low and storm are pulling away.  I received about 0.16 in of water yesterday and a trace or more today. The first freezing temperatures are headed in overnight tonight.  There is a freeze watch for I-25 cities and the eastern plains.  Cover those plants or bring them inside!

figure1u_10122023
Figure 1 update: freeze watch map from the NWS.

End Thur update.

The Forecast Discussion:

The ridge holds on for a couple more days. We'll see above normal temperatures into Wednesday morning (Figure 1). Afternoons get a bit breezier each day.

figure1_10082023
Figure 1: the 10 day graphical forecast for Longmont from weatherunderground.com

The Longer Range Forecast:

A healthy cut-off low rolls over Colorado Wednesday afternoon and Thursday. (Figure 2). At present, northern Colorado will see the precipitation, rain on the low lands, snow in the northern mountains (Figure 3). Rainfall amounts do look pretty light, though (Figure 4).

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Figure 2: the 500mb upper air forecast map for Thursday noon from the GFS and tropicaltidbits.com
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Figure 3: the surface 6 hour precipitation forecast map for Thursday noon from the GFS and tropicaltidbits.com
figure4_10082023
Figure 4: the 5 day precipitation total 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

Clear

Clear

54°F

UV Index
0 Low
Pressure
30.29 Rising
Visibility
8 miles
Dewpoint
44 °F
Humidity
67%
Wind
SW 1.7 mph
Gust
3.8 mph
Wind Chill
54 °F

Hourly Forecast

Today
10 PM
56°F
Clear
Today
11 PM
54°F
Mostly clear
Tomorrow
12 AM
52°F
Mostly clear
Tomorrow
1 AM
50°F
Mostly clear
Tomorrow
2 AM
49°F
Mostly clear
Tomorrow
3 AM
48°F
Mostly clear
Tomorrow
4 AM
46°F
Mostly clear
Tomorrow
5 AM
45°F
Mostly clear
Tomorrow
6 AM
44°F
Mostly sunny
Tomorrow
7 AM
47°F
Mostly sunny
Tomorrow
8 AM
52°F
Intermittent clouds
Tomorrow
9 AM
58°F
Intermittent clouds

7 Day Forecast

Mostly sunny

Thursday

71 °F

Sunny to partly cloudy, pleasant and warmer


Mostly clear

Thursday Night

44 °F

Mainly clear


Partly sunny w/ t-storms

Friday

75 °F

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


Mostly clear

Friday Night

45 °F

Clear to partly cloudy


Mostly sunny

Saturday

81 °F

Sunny to partly cloudy and very warm


Mostly clear

Saturday Night

44 °F

Clear to partly cloudy


Partly sunny

Sunday

83 °F

Very warm with sunshine mixing with some clouds; windy in the afternoon


Partly cloudy

Sunday Night

48 °F

Partly cloudy


Mostly cloudy

Monday

84 °F

Very warm with more clouds than sunshine


Mostly clear

Monday Night

52 °F

Mainly clear


Sunrise and Sunset

Sunrise
5:52 AM
Sunset
8:02 PM

Based on AccuWeather data