Skip to content

Next Storm/Next Snow Forecast Discussion from the Cherrywood Observatory – March 16-17, 2019

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

Forecast Discussion:

**Note, I'm sitting in the middle of the Hopi Reservation presently with just a trickle of internet. Good thing is, not much is changing with the weather... see you tomorrow! **

Clear weather continues as does the great melt. Figure 1 shows high pressure dominating the entire state. A small, weak, cold front inches back into the state this afternoon (Saturday) and briefly cools us down. Overhead, we still have northwest flow (air from the northwest - as all wind directions are defined by their source direction in meteorology - Figure 2) aloft and a ridge in the west. A storm system is passing Colorado over the next few days, but it is going through northern Mexico.

Figure 3 shows the clouds and cool down Sunday into Monday... the mountains will get a bit more snow (yea.).

The longer range forecast:

The ridge strengthens over the west and we warm to the low 60's F in time for spring to start on Wednesday 3/20. There are indications of rain showers at the end of the week with a low that tracks over Denver and brings more snow to the mountains. We'll watch that over the week.

Figure 1: The forecast surface map for Saturday PM from NCEP.
Figure 2: the 500mb map and how anomalous those heights are (red is much higher than normal, blue is lower than normal).
Figure 3: the graphical forecast for the next 10 days for Longmont, CO from weatherunderground.com

Current Weather

Clear

Clear

53°F

UV Index
0 Low
Pressure
29.9 Rising
Visibility
6 miles
Dewpoint
44 °F
Humidity
72%
Wind
NNW 4.6 mph
Gust
9.9 mph
Wind Chill
53 °F

Hourly Forecast

Today
2 AM
49°F
Mostly clear
Today
3 AM
47°F
Mostly clear
Today
4 AM
45°F
Clear
Today
5 AM
43°F
Mostly clear
Today
6 AM
41°F
Mostly clear
Today
7 AM
45°F
Partly sunny
Today
8 AM
50°F
Partly sunny
Today
9 AM
55°F
Partly sunny
Today
10 AM
62°F
Intermittent clouds
Today
11 AM
66°F
Intermittent clouds
Today
12 PM
70°F
Intermittent clouds
Today
1 PM
75°F
Intermittent clouds

7 Day Forecast

Mostly sunny

Wednesday

75 °F

Mostly sunny, pleasant and warmer


Partly cloudy

Wednesday Night

41 °F

Patchy clouds


Mostly cloudy w/ t-storms

Thursday

75 °F

Turning cloudy, warm; breezy, a thunderstorm around this afternoon


Thunderstorms

Thursday Night

49 °F

A thunderstorm in spots this evening; otherwise, considerable cloudiness


Thunderstorms

Friday

70 °F

Mostly cloudy with a couple of thundershowers


Thunderstorms

Friday Night

46 °F

Cloudy with a couple of thundershowers


Rain

Saturday

50 °F

Chilly with periods of rain and a thunderstorm


Rain and snow

Saturday Night

39 °F

Cloudy with rain, mixed with a little snow late


Mostly cloudy

Sunday

59 °F

Mostly cloudy with a stray thundershower in the afternoon


Partly cloudy

Sunday Night

36 °F

Partly cloudy


Sunrise and Sunset

Sunrise
6:08 AM
Sunset
7:49 PM

Based on AccuWeather data