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CONSIDER THE VALUE continues to be a leader in catching and forecasting the trends of our extreme weather pattern the past few weeks. It takes a great deal of commitment, passion, and knowledge to stay on top of the swings. Now that I'm no longer in television, this is my job and that's the reason I'm asking for a voluntary subscription fee of $12 dollars a year, one dollar a month to keep TSwails going. Together we can create one of the best, most unique, and reliable weather sites in the Midwest. Your contribution of 3 cents a day, allows me to stay free of the corporate world and pour my energy into doing what I do best, forecasting the weather! We hope you see the value and hard work that goes into the site everyday. Your support in any way is sincerely appreciated. Thanks and roll weather. To donate click on the secure green box below.


Considering how fast the winter started, it has literally slowed to a crawl most of December. We've made up for some lost time. Question is, do we end up paying the piper? Astronomical winter starts today at 10:19 PM and more likely than not, we have a long and winding road ahead of us.

One thing is for sure, things are going to stay nice and mild through Christmas. Holiday travelers should have little to contend with in terms of precipitation until the 28th when some rain is shown, perhaps mixed with snow in parts of the upper Midwest. Right now, this is what the EURO shows for snow through Saturday morning Dec. 28th.

After that the pattern does have a good chance of turning colder (if) the ensembles of the EURO and the GEFS are correct in showing the EPO (eastern Pacific Oscillation) going negative. Today both are depicting that scenario towards the end of December.



This trend has showed up a couple times recently and then the models delayed or flip-flopped and we've steadily warmed with the MJO in phases favorable for mild temperatures. What I'm saying is I am cautious about jumping this trend. However, if it does hold one of the things I expect to see is exactly this, a negative EPO. I think it's a critical teleconnection that must happen (and remain intact) for us to get any semblance of winter. I also think it will take neutral or cold phases of the MJO to really get it going. I will be watching this like a hawk in the days ahead.

Friday the EURO MJO did make a run at it heading out of the warm phase 6 into 7,8, and a weak version of 1 late December and early January. Interesting...

These are the temperature analogs for 1, 7, and 8 in late December.

The U.S. climate model the CFSv2 also shows the colder trend in the 3 week period. Watch the transition by way of weekly temperature departures.

Week 1 December 21-28

Week 2 December 28-January 4th

Week 3 December 4th-January 11th. The whole nation takes a turn towards colder weather.

The CFSv2 then shows this for the whole month of January.

This for February

And finally this for March

I'm not fully convinced this is the way to go but if the CFS is correct, we have plenty of winter ahead of us. No matter what happens, there's some fine weather leading us into Christmas. I just wish I liked fine weather. However, I do know it causes hardships and travel headaches and thus I'm happy for those of you who will be on the roads. See, I'm not such a bad guy after all! Roll weather get to shopping...TS


Christmas is almost here. Are you looking for something special for that hard to buy for person? Maybe you just want to treat yourself for being on the nice list! Well, here's an idea that can "give" any weather enthusiast a lifetime of pleasure. It's called WEATHER SCHOOL. What a person experiences and learns here will open up the world of forecasting for years of enjoyment to come. As a little bonus, we will personalize an email to that special someone from TSwails himself along with a certificate to open or unwrap. Consider giving the gift of weather. Better hurry, only 4 desks still open. You can get all the details below. Merry Christmas! is offering a very special and unique opportunity to learn first-hand the ins and outs of weather forecasting with one of the best meteorologists in the Midwest along with his team of expert meteorologists.

That’s right… You want to forecast right along with Terry Swails, well now you can. He’s teaching weather with TSwails newest program called WEATHER SCHOOL. The opening bell rings this January and you can be a member of the very first graduating class. The one-day forecasting seminar for weather enthusiasts will be held at his home in January. It’s not your typical run-of-the-mill school. There will be no tests, but Terry, Rebecca, and Nick will cram your head with so much knowledge, it’ll be spinning like a tornado before the day is over.

You want to know the essential online sites to use for models, radar, and the basic weather tools? DONE! You want to understand the structure of models and the role they play? DONE! You want to be able to construct forecasts from the ground up? DONE!

WEATHER SCHOOL will be presented in a seminar-type format where you'll have the ability to ask questions and dig deep. You’ll get the scoop on data acquisition, model analysis, severe weather, and actual forecasting from the big dog himself, T. Swails. With 43 years of experience and an uncanny ability to break the science down, you’ll open the door to forecasting like never before.

Along with the head master T. Swails himself, meteorologists Rebecca Kopelman and Nick Stewart of KGAN TV will be there to lend their knowledge and experience to the discussion. It will be fun, informative, and factual! This is the day for you to see, feel, and experience what it’s like to be in the hot seat of a meteorologist.

The seminar will be held January 25th and will last from noon until 5:00pm. We have limited seating and the cost is $99 dollars per person. A catered lunch will be provided. Again..not a lot of seats so reservations with a pre-payment are required. Sorry, no refunds. If there’s enough interest, a second session will be added in early February. To register or get additional information send an email to

GIVE THE GIFT OF WEATHER. This might be the perfect gift for that hard to buy for person this Christmas. Along with a WEATHER SCHOOL admittance voucher, TSwails will send a special holiday greeting to your weather enthusiast if you give the gift of weather with the TSwails touch!



Purpose: To help weather enthusiasts understand the basics of forecasting and apply the knowledge and techniques learned to construct personal forecasts.


The essential on-line sites for models, observations, satellite and radar images, and general weather data.

Session 2: ANALYSIS:

Determining your objective goals. Short term, intermediate, or long-term. Understanding the process of analysis and its relationship to forecasting.

Model options and choices. What to use and when!

The GFS, EURO, NAM 3k, NAM 12K, Canadian, HRRR, MJO, ensembles, teleconnections, etc.

Locating, learning, and knowing what’s essential to make a reliable forecast.

The art and science of model interpretation: Using and understanding model output. Its called guidance for a reason!

Learn how to analyze key parameters such as:

Surface and upper air data

Vorticity and energy

Precipitation output

Wind and pressure


A simulation of the basic process using model output.

BREAK: A 25-30 minute recess to enjoy a catered lunch…


Thunderstorms, tornadoes, derechoes, and squall lines.

Soundings. What are they and why should I care?

Instability (CAPE) vs (CIN) Critical interaction involving moisture, heating, and forcing.

Uncovering the ingredients of a severe weather set-up.

TVS signatures. What to look for on radar.

Role of SPC vs NWS, and your local TV station regarding the warning process.

Simulated model driven forecast of a severe weather event/tornado outbreak


The key ingredients required for significant winter storm:

How to forecast the rain snow line.

How to forecast snow totals from QPF

Determining totals from snow ratios.

What to look for at the surface and at upper levels (500 and 850mb)

Model bias and determining the storm track

Simulated model driven forecast of a significant Midwest winter storm


An open period for attendees to ask questions regarding relevant topics or issues discussed during the day.


Some final words of inspiration from the events headliners

Once again, to reserve a spot or ask questions send an email to See you when the bell rings! Roll weather...T. Swails

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