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The Next Storm/Next Snow Forecast Discussion from the Cherrywood Observatory – October 15th, 2018

This content was originally published by the Longmont Observer and is licensed under a Creative Commons license.

Forecast Discussion:

I'm issuing an extreme mild advisory for today and the next week. The upper level trough is pulling off to the east as surface high pressure builds in over the entire region (Figure 1). We dropped to around 10°F this morning, but we climb about 15°F over the next 24 hours.

To catch up on snowfall reports since 7 a.m. yesterday, Figure 2 shows Longmont picked up another 1/2 inch or so, Boulder received another 1/2 to 2 inches. Figure 3 shows that Ft. Collins only got a dusting more. Estes park almost received another 2 inches while Berthoud received 1/2 to 2 inches more as well. Finally (Figure 4) southwestern Colorado picked up 2-3 inches more and the airport received 1/2 to 2 inches around the region.

Figure 1: The current surface map for Sunday afternoon from the Weather Channel.

Figure 2: The CoCoRaHS snowfall reports up to 7 a.m. Monday (the storm continued to roughly 1 p.m.) for Boulder County.

Figure 3: The CoCoRaHS snowfall reports up to 7 a.m. Monday (the storm continued to roughly 1 p.m.) for Larimer County.

Figure 4: The CoCoRaHS snowfall reports up to 7 a.m. Monday (the storm continued to roughly 1 p.m.) for the Metro Denver.

The longer range forecast:

It will warm a bit and stay dry for the next 10 days or more (Figure 5). Too bad this stretch didn't occur when I go on vacation (there will be no updates to this column for the period October 26-Nov 4).

Figure 5: the next 10 days of the graphical forecast for Longmont, CO from weatherunderground.com

Current Weather

Mostly cloudy

Mostly cloudy

58°F

UV Index
4 Moderate
Pressure
29.89 Falling
Visibility
8 miles
Dewpoint
25 °F
Humidity
28%
Wind
SE 3.3 mph
Gust
8.6 mph
Wind Chill
58 °F

Hourly Forecast

Today
1 PM
60°F
Partly sunny
Today
2 PM
61°F
Partly sunny
Today
3 PM
63°F
Partly sunny
Today
4 PM
64°F
Partly sunny
Today
5 PM
63°F
Partly sunny
Today
6 PM
61°F
Partly sunny
Today
7 PM
58°F
Partly sunny
Today
8 PM
55°F
Intermittent clouds
Today
9 PM
51°F
Intermittent clouds
Today
10 PM
48°F
Intermittent clouds
Today
11 PM
45°F
Intermittent clouds
Tomorrow
12 AM
44°F
Intermittent clouds

7 Day Forecast

Partly sunny

Thursday

64 °F

More sun than clouds


Intermittent clouds

Thursday Night

34 °F

Partly cloudy


Partly sunny w/ showers

Friday

54 °F

Cooler with times of clouds and sun; a couple of showers late in the afternoon


Showers

Friday Night

32 °F

A couple of showers in the evening; otherwise, cloudy


Mostly cloudy

Saturday

60 °F

Mostly cloudy


Intermittent clouds

Saturday Night

36 °F

Partly cloudy


Intermittent clouds

Sunday

62 °F

Times of sun and clouds


Mostly cloudy

Sunday Night

36 °F

Becoming cloudy


Showers

Monday

48 °F

Cloudy and chilly with occasional rain; windy in the afternoon


Intermittent clouds

Monday Night

29 °F

Windy in the evening; partly cloudy


Sunrise and Sunset

Sunrise
6:50 AM
Sunset
7:22 PM

Based on AccuWeather data