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Wed 10pm Update: Next Storm/Next Snow Forecast Discussion from the Cherrywood Observatory – December 26-27, 2018

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

Forecast Discussion:

Wednesday 10pm update:

Not much is changing in the forecast, and I've spent the day traveling to a far away city, so let me touch on the highlights for the next few days and I'll be back tomorrow:

A dry cold front comet through later today (Thursday), winds kick up to notable levels, then the temperatures drop further. We'll stay below freezing for the next 36-48 hours. As we warm a bit on Saturday, another system moves in giving us a coating to 1 inch of snow.    It is pretty much what we covered yesterday (below...).

End update 10pm Wed.

Christmas Day was very mild and beautiful (unless you only think snow is beautiful on Christmas Day). There IS a big storm gathering in the U.S. southwest (Figure 1). By tonight, the low is in the Oklahoma panhandle with rain and snow is falling in every direction around Longmont, but down slope flow is not allowing much to hit right here.  Sheesh!  (Figure 2).

By Thursday morning, there are some snow/sleet/ice chances exist around town, but they are not very high chances (Figure 3). Figure 4 shows only about a 20% chance of precipitation from Wednesday (today) through Thursday AM. (Even Estes Park isn't expecting much more than a coating to an inch out of this storm - Figure 5).

Figure 1: The current surface map from Tuesday PM and the Weather Channel.

Figure 2: The forecast surface map for Wednesday AM. From NCEP.

Figure 3: The forecast surface map for Thursday AM. From NCEP.

The longer range forecast:

We stay very cold for a few days not warming up until Sunday (Figure 4). Another storm moves in for New Year's Eve with low (at this time) chances of snow. Figure 5 shows flurries during the very cold period Thursday-Friday in Estes Park and the next storm, for the New Year, maybe giving them 1-3 inches of snow accumulation. That is a long way out though and much can change before we get there.

Figure 4: the graphical forecast for the next 10 days forecast for Longmont, CO from weatherunderground.com

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

Current Weather

Clear

Clear

59°F

UV Index
0 Low
Pressure
29.35 Falling
Visibility
8 miles
Dewpoint
33 °F
Humidity
37%
Wind
S 5.6 mph
Gust
12.8 mph
Wind Chill
59 °F

Hourly Forecast

Today
4 AM
52°F
Showers
Today
5 AM
50°F
Cloudy
Today
6 AM
49°F
Cloudy
Today
7 AM
47°F
Cloudy
Today
8 AM
49°F
Cloudy
Today
9 AM
51°F
Cloudy
Today
10 AM
53°F
Cloudy
Today
11 AM
54°F
Cloudy
Today
12 PM
55°F
Cloudy
Today
1 PM
55°F
Cloudy
Today
2 PM
55°F
Cloudy
Today
3 PM
55°F
Cloudy

7 Day Forecast

Intermittent clouds

Sunday

76 °F

Warmer with intervals of clouds and sunshine


Mostly cloudy w/ showers

Sunday Night

47 °F

Turning cloudy; windy late with a stray shower


Windy

Monday

55 °F

Winds gusting past 40 mph; cloudy and cooler


Windy

Monday Night

42 °F

Very windy this evening; partly cloudy


Partly sunny w/ showers

Tuesday

59 °F

A couple of showers in the morning; otherwise, windy and cool with times of clouds and sun


Partly cloudy

Tuesday Night

32 °F

Partly cloudy


Intermittent clouds

Wednesday

60 °F

Times of clouds and sun


Intermittent clouds

Wednesday Night

38 °F

Partly cloudy


Intermittent clouds

Thursday

56 °F

Cool with times of clouds and sun


Cloudy

Thursday Night

39 °F

Cloudy


Sunrise and Sunset

Sunrise
5:54 AM
Sunset
8:00 PM

Based on AccuWeather data