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Next Storm/Next Snow Forecast Discussion from the Cherrywood Observatory – May 13, 2019

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

In Brief:

We are mostly dry and warming to near 80F over the next couple of days and above 80F mid week. A cool down and 'maybe' some showers return for the weekend. There is a slight chance of a thundershower some afternoons rolling out of the mountains.

Forecast Discussion:

Beautiful weather continues with high pressure at the surface (Figure 1) and a ridge aloft (not shown). Other than a slight chance of wandering afternoon showers - we remain dry and keep warming up.

The Longer Range Forecast:

We should rise above 80'F Tuesday to Thursday (Figure 2). The rain chances through Thursday are very light with not much expected in town (Figure 3). Even the mountains will only see spotty higher amounts. A quick look at the 5 day snowfall map (Figure 4) looks very spring-like with only small amounts only at the higher elevations.

There is a cool down and some rain chances returning Friday and Sunday this week - but is too far to make a headline about. More later!

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

Current Weather

Light snow

Light snow

32°F

UV Index
0 Low
Pressure
30.37 Steady
Visibility
2 miles
Dewpoint
30 °F
Humidity
93%
Wind
ENE 1.6 mph
Gust
2.9 mph
Wind Chill
32 °F

Hourly Forecast

Tomorrow
12 AM
33°F
Snow
Tomorrow
1 AM
33°F
Cloudy
Tomorrow
2 AM
33°F
Cloudy
Tomorrow
3 AM
33°F
Cloudy
Tomorrow
4 AM
33°F
Snow
Tomorrow
5 AM
33°F
Snow
Tomorrow
6 AM
33°F
Snow
Tomorrow
7 AM
33°F
Cloudy
Tomorrow
8 AM
33°F
Flurries
Tomorrow
9 AM
34°F
Snow
Tomorrow
10 AM
35°F
Cloudy
Tomorrow
11 AM
36°F
Cloudy

7 Day Forecast

Rain and snow

Friday

41 °F

Chilly; rain and snow showers this morning with little or no accumulation followed by rain and drizzle this afternoon


Snow

Friday Night

32 °F

Periods of wet snow, accumulating 1-3 inches; roads could be slippery


Flurries

Saturday

39 °F

A bit of morning snow with little or no accumulation; otherwise, cloudy and cold; storm total snowfall 1-3 inches


Intermittent clouds

Saturday Night

30 °F

A shower in places in the evening; otherwise, partly cloudy


Partly sunny

Sunday

64 °F

Partly sunny and warmer


Mostly clear

Sunday Night

41 °F

Mainly clear


Intermittent clouds

Monday

79 °F

Warmer with a blend of sun and clouds


Partly cloudy

Monday Night

40 °F

Partly cloudy


Mostly cloudy

Tuesday

66 °F

Mostly cloudy and not as warm


Mostly cloudy

Tuesday Night

40 °F

Mostly cloudy


Sunrise and Sunset

Sunrise
6:15 AM
Sunset
7:44 PM

Based on AccuWeather data