Skip to content
Join our Newsletter

Update 5/30 10am: Longmont Weather Update

For May 29-30, 2020 from the Cherrywood Observatory

Update 5/30 10am:

In Brief:

Expect above normal temperatures with more and sometimes fewer thunderstorms every day for the next week.

The 5/30 10am update:

Figure 1 update shows the Storm Prediction Center (SPC) is painting us with a marginal (1 on a scale of 1-5) risk of severe weather this afternoon.  Storm coverage will be better today and tonight than the past few days, but conditions are not great for severe weather.  I expect only a few cells to approach severe limits - which would include large hail and damaging winds.  More likely, many folks will see around 0.10 inch of water.  Sunday (Figure 2 update - another marginal risk) will be very similar to today, but storms and/or rain will be more widely scattered.   The real main threat, as always with thunderstorms, is lightning.  Be ready to seek shelter if you hear thunder.  Enjoy the warm beautiful weekend!

End of the 5/30 10am update.

Forecast Discussion:

The front that cooled things down on Thursday will drift off to the east brining on the heat (Figure 1 in the gallery). We'll see garden variety storms Friday afternoon with very warm (almost 90F) (Figure 2 in the gallery).  Enjoy your morning walk!

The Longer-Range Forecast:

Temperatures stay very warm through the weekend. Storms may become a bit more severe (barely) on Saturday afternoon with the heat and moisture in place (Figure 4 in the gallery). The big ridge over our heads is responsible for the warmth and the nearby trough to the west will help generate some lift (Figure 3 in the gallery). We will probably see the high temperature climb above 90F on Monday as the ridge gets even larger and stronger by the end of the weekend (Figure 5 in the gallery). There is a bit of a cool down and more storms Tuesday/Wednesday, next week (Figure 2), as a trough punches through the ridge (Figure 6 in the gallery). With a pattern like this, one has to look closely at the data for interesting changes!


About the Author: John Ensworth

John Ensworth used to work from Longmont as the PI for the NASA through the IGES (The Institute for Global Environmental Strategies). He now teaches technology, algebra, astronomy, meteorology, film school, and Lego robotics to middle/high school.
Read more


Comments


Current Weather

Mostly sunny

Mostly sunny

60°F

UV Index
3 Moderate
Pressure
30.38 Rising
Visibility
8 miles
Dewpoint
44 °F
Humidity
54%
Wind
NNW 1.1 mph
Gust
3.4 mph
Wind Chill
60 °F

Hourly Forecast

Today
10 AM
55°F
Intermittent clouds
Today
11 AM
58°F
Intermittent clouds
Today
12 PM
64°F
Partly sunny
Today
1 PM
69°F
Partly sunny
Today
2 PM
75°F
Partly sunny
Today
3 PM
75°F
Intermittent clouds
Today
4 PM
76°F
Intermittent clouds
Today
5 PM
74°F
Mostly cloudy
Today
6 PM
72°F
Cloudy
Today
7 PM
68°F
Thunderstorms
Today
8 PM
66°F
Partly sunny
Today
9 PM
61°F
Partly cloudy

7 Day Forecast

Partly sunny w/ t-storms

Friday

76 °F

Sun and clouds with widely separated thunderstorms this afternoon


Mostly clear

Friday Night

46 °F

Clear to partly cloudy


Mostly sunny

Saturday

81 °F

Sunny to partly cloudy and very warm


Mostly clear

Saturday Night

45 °F

Clear to partly cloudy


Partly sunny

Sunday

83 °F

Very warm with sunshine mixing with some clouds, becoming windy in the afternoon with a shower in places


Partly cloudy

Sunday Night

50 °F

Partly cloudy


Mostly cloudy

Monday

84 °F

Mostly cloudy and very warm


Partly cloudy

Monday Night

52 °F

Partly cloudy


Partly sunny

Tuesday

87 °F

Partly sunny and remaining very warm


Clear

Tuesday Night

54 °F

Clear


Sunrise and Sunset

Sunrise
5:51 AM
Sunset
8:03 PM

Based on AccuWeather data