Tag Archives: NAM

Storm Chase Departure

We are going to set off for Limon, CO, today in preparation of the severe weather threat tomorrow in northeastern Colorado, southeastern Wyoming and southwestern Nebraska. I still need to:* Unpack and repack my tools and emergency supplies* Check the … Continue reading

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Storm Chase Preparations – Continued, Again

I will be leaving this week for the first leg of the 2021 Storm Chase. I don’t know exactly what day I will depart- sometime Wednesday through Saturday, depending on the weather. Yesterday was a hot mess. There were tornado … Continue reading

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Vertical Stacking of a Mid-Latitude Cyclone

A few weeks back, the east coast got slammed by a massive winter storm. I wanted to display the North American Mesoscale (NAM) forecast model output for the dynamics and temperatures for this system as it approached the mid-Atlantic. Keep … Continue reading

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Fun Weather Images: 12/30/14

I did not feel like doing a snow prediction today, but I did want to point out two neat images from today’s weather. First, there is an interesting visible satellite image today from over the Mid-Atlantic Region. Notice the sharp … Continue reading

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NAM 850 mb and 300 mb over time (again)

I’m doing perhaps a few more days of NAM 850 mb and 300 mb run comparisons. I want to see how closely the NAM is modeling the jetstream and the temperature advections, and this seems to be a good way … Continue reading

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NAM 300mb and 850mb over time

I am running a little experiment to see how the NAM behaves over time. Yesterday, I took a bunch of 850 mb and 300 mb images at 12 hour intervals, and am now comparing them to today’s runs. For today, … Continue reading

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Prog Charts (NAM) and Forecast

Here is my preliminary forecast for the next few days. It’s my first attempt doing this at the synoptic scale, so we’ll see how I do. Starting out with today’s 12Z analysis, temperatures seem to be holding into a steady … Continue reading

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Prog Charts: 2/4/14 12z (NAM and GFS)

This week’s focus has been on looking at the differences between NAM and GFS- not so much to determine which one is better, so much as to see what differences exist between them. The surface pressure and 1000 mb – … Continue reading

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Prog Charts: 1/26/14

It’s time for another round of prog chart analyses! At the surface and at the 1000 mb level, there are rising dewpoints across much of the country- south and west. This is evidence that there is some moisture return. http://infohost.nmt.edu/~sprice/wordpress/WX/1-26-14%20surf.gifContinue reading

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