Skip to content

Next Storm/Next Snow Forecast Discussion from the Cherrywood Observatory – April 6-7, 2019

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

Forecast Discussion:

We saw some high-based showers move by Friday PM. I don't think Longmont even saw a sprinkle (Berthoud may have been splashed briefly). Today (Saturday) will be very much the same. [Correction, we got a bit of real rain around 9pm, after I wrote this!] You can see showers on the western slopes in the late afternoon today (Figure 1) with very small chances of precipitation in the late afternoon (Figure 2). Some thunder is possible given the cold air aloft. Overall, we are dry and getting warmer and warmer.

Because readers of this column are probably outside playing this weekend, and things are so quiet, I'll pick it up again Monday when we can set our sights on the next storm better.

The longer range forecast:

By Monday PM we are some 20F above average (Figure 3). Wonderful temperatures.

We've been seeing thata big change coming mid-week for a few days now (Figure 2). The GFS (that has often over predicted precipitation this far out) gives us about 1/4th an inch of water over the next 10 days (but 1 inch amounts are in the nearby foothills -Figure 4). The GFS DOES give us a coating to 1 inch of snow over the next 10 days - so we are probably not done with winter-like weather yet. More on Monday!

Figure 1: The forecast surface map for Saturday PM from NCEP.
Figure 2: the graphical forecast for the next 10 days for Longmont, CO from weatherunderground.com
Figure 3: The forecast temperature departure from normal map from the GFS and weather5280.com for Colorado, Monday PM.
Figure 4: the forecast accumulated precipitation map from the GFS and weather5280.com for Colorado, over the next 10 days.
Figure 5: the forecast accumulated snowfall map from the GFS and weather5280.com for Colorado, over the next 10 days.

Current Weather

Mostly cloudy

Mostly cloudy

62°F

UV Index
1 Low
Pressure
29.74 Falling
Visibility
8 miles
Dewpoint
24 °F
Humidity
23%
Wind
W 5.9 mph
Gust
13.3 mph
Wind Chill
62 °F

Hourly Forecast

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
43°F
Intermittent clouds
Tomorrow
1 AM
41°F
Intermittent clouds
Tomorrow
2 AM
39°F
Intermittent clouds
Tomorrow
3 AM
38°F
Intermittent clouds
Tomorrow
4 AM
37°F
Intermittent clouds
Tomorrow
5 AM
36°F
Intermittent clouds

7 Day Forecast

Partly sunny

Thursday

65 °F

Partly sunny


Intermittent clouds

Thursday Night

34 °F

Partly cloudy


Partly sunny w/ showers

Friday

53 °F

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


Showers

Friday Night

33 °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

33 °F

Becoming cloudy


Showers

Monday

52 °F

Cloudy and cooler 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