In Brief:

The next 10 days will see slightly cooler weather than normal and (at this point) a minor chance of rain/snow early Thursday morning. Quiet weather is back for a slow melt.

Forecast Discussion:

I’m still unpacking from the Great American Road Trip, so this will be brief today (and there isn’t much to discuss). A ridge will pass the state over the next couple of days and warm us back to near normal. Normal high temperatures this time of year are about 49F and normal low temperatures are near 19F. That is close to what is forecasted for the next week – plus. (Figure 1).

The Longer Range Forecast:

There is a small chance of rain/snow that we will need to watch (since these can become big time stories as the date approaches) for early Thursday morning (Figure 1). Still, the GFS’s take on snow for the next 10 days over Colorado dumps all of it on the mountains west of us. Longmont has a chance of a dusting, but right now not much is expected. If you have a north facing driveway (like I do) – good luck getting it to melt.

Figure 1: the graphical forecast for the next 10 days for Longmont, CO from weatherunderground.com
Figure 2: 10:1 (snow to liquid) snowfall totals through for the next 10 days from the GFS and weather5280com for Colorado made Sunday afternoon.
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John Ensworth works from Longmont as the Principle Investigator for the NASA Science Mission Directorate Earth and space science education product review through the IGES (The Institute for Global Environmental Strategies – www.strategies.org) . He is in his 14th year running this review. He is an astronomer (from the 2nd grade onward) and became a meteorologist (in the 5th grade) when a thunderstorm in Arizona rained on his telescope when the weather service had only forecasted a 10% chance of rain. He has college degrees in physics and astronomy and climatology and a graduate degree in meteorology and earth science. He lectures at the Little Thompson Observatory in Berthoud, the Estes Park Memorial Observatory in Estes Park, and for a number of online universities. He built and runs a backyard observatory near Pace and 17th in northeast Longmont where he has lived for 8 years with his wife, daughter, son, and two cats. Invitations to open house nights at this observatory, LTO, and EPMO will be posted with future discussions when they are scheduled. Forecasting severe weather and snow amounts via text lead to this column. He began texting friends about the weather right after the September 2013 flood. The readers of this column will, hopefully, keep him honest in what he ‘thought’ he had forecasted for ‘the most recent’ storm.

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