Forecast discussion:

Northwest flow continues as the arctic begins to dump blobs of cold air into the U.S. Midwest. We are on the western edge of this cold-front-train. For most of the rest of the week, we’ll be to the north of the frontal zone and highs will remain quite chilly (40’s F – Figure 1).

Our next storm pulls past us tonight to Thursday AM (Figure 2). There are chances of snow mixed with the rain, but the significant snows will be out on the plains. Figure 3 shows where blizzard like conditions will occur over the next few days. Figure 4 shows that it is not expected to push this far west at this time. Oh well, snow will come… someday!


Figure 1: The forecast surface map for Wednesday PM. From NCEP.
Figure 2: the next 10 days of the graphical forecast for Longmont, CO from
Figure 3: The forecast accumulated snow map from the GFS and for the U.S. for the next 4 days.
Figure 4: The forecast accumulated snow map from the GFS and for Colorado for the next 4 days. Longmont is the pink dot, as always.

The longer range forecast:

That someday may be this weekend. We remain pretty cold overall with a more significant storm on the horizon for Saturday PM and Sunday AM, but we’ll handle that after the current storm manifests.

Previous articleLive Colorado Election Results
Next articleMorning Brief: E-bikes on Boulder County Parks & Open Space public hearing, Thursday, Nov. 8
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 – . 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.

Leave a Reply