Forecast Discussion:

NOTE: The snow reports will be included in tomorrow’s post (March 15).

I’ll post this now and update with snow/rain reports in the morning.

The giant low that deepened in Colorado and moved on into Kansas (Figure 1). By about 11am the atmospheric pressure had dropped 34mb over southeast Colorado. Wind speeds seen up through midday were impressive (Figure 2). There still will be about 1-3 inches of snow to fall as the system winds down (and down slope flow starts to matter). It should be all over in Longmont before midnight (this was posted at 4pm Wednesday).

The longer range forecast:

We warm through the 40’s F by the weekend, the 50’s by mid-week next week, and touch 60F by the end of next week. Nice.

Figure 1: The current surface map from Wednesday PM and the Weather Channel.
Figure 2: Wind reports in the first half of the Wednesday blizzard from the NWS Boulder.
Figure 3: the graphical forecast for the next 10 days for Longmont, CO from weatherunderground.com
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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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