About

T-storm Weather is a service that forecasts weather and yields to help subscribers manage grain and oilseed risk.

Primary Focus

Our primary goal is to accurately forecast and analyze the impact of weather on corn, soybeans, and wheat in the U.S. and South America.

Secondary Focus

Secondary Focus

We also provide daily and long-range forecasts for key areas of the world, such as Australia, China, Europe, and the Russian Federation.

YieldCast®

YieldCast® is an important stand-alone product of T-storm Weather that forecasts U.S. corn and soybean yields each week from April through October.

Services

Several newsletters are available to help buyers and sellers manage grain and oilseed risk, including:

Sunrise Snapshot
U.S. and South America Outlook
Email Updates
Worldwide Weather Outlook
YieldCast®

Tools

Proprietary geographic information system (GIS) models precisely calculate the impact of weather on crop production in the U.S. and South America.

Testimonials

“Always look forward to reading your reports — clear, concise and on-target. Keep up the great work.”

Analyst, Bloomington, Illinois, Client Since 2007 - April 25, 2018
“Great job on analysis of Argentina. I have a text service that gave me an update on Monday that said rains hit major Argentine growing area and stops destruction of soybean crop. I just started to laugh because I could see from your maps that it didn’t. Wasn’t even close.”

Producer, Iowa, Client Since 2007 - March 21, 2018
“You’re the best in the business.”

Fund Trader, New York, New York, Client Since 2012 - March 4, 2018
“Great job forecasting [the Argentina drought] since I started receiving your material a couple weeks ago.”

Trader, North Dakota, Client Since 2018 - February 25, 2018
“I need to pickup a weather subscription… I know you’ve got the best stuff.”

Trader / Broker, Chicago, Illinois - June 13, 2016
“You combine accurate forecasts, which are a look forward, with well-organized data that assesses crop conditions currently and looking backward. It enables a subscriber like me to draw and maintain a mental “picture” of the crop’s condition as the season progresses. It’s really quite comprehensive, and totally unique to our industry.”

Grains Trader Since 1983, Jackson, Wyoming, Client Since 2006 - June 1, 2015
“You [Mike Tannura] are undoubtedly the best weatherman in the business.”

Fund Manager, Chicago, Illinois - May 23, 2015
“Nice call with the U.S. wheat forecast that was drier than others. You are a stud forecaster, Mike.”

Trader, Melbourne, Florida - April 9, 2015
“Your stuff is just excellent. The presentation is so focused and easy to understand. I trade a lot of wheat futures and your outlook has been useful.”

Trader, Connecticut - March 30, 2015
“You guys put out great information … I would follow your weather estimates over anyone else out there!”

Analyst, Bloomington, Illinois - January 26, 2015
“You do great work. I never want to miss the daily report.”

John Stewart, Founder, John Stewart and Associates - December 16, 2013
“T-storm Weather is the best weather service I’ve seen. Highly recommended if you trade grain markets.”

Austin Damiani, Trader, Minneapolis Grain Exchange Floor - August 30, 2013
“Really enjoy your service, very clear, concise and very well done, I’m very, very happy with your product…”

Risk Manager, Omaha, Nebraska - July 30, 2013
“I have really enjoyed your coverage on the drought and heat wave, your timeliness and description of relativities has been incredibly useful.“

Grain Analyst, London, United Kingdom - July 18, 2012
“Thanks again for your time and commentary, I really appreciate your opinion and am steadied by your confidence in it. Excellent work!”

Aaron Massey, Trader, Chicago, Illinois - July 16, 2012
“You’ve done an excellent job this year in discounting what the models are showing, which is where you separate the real forecasters from the model huggers.”

James R. Gerlach, President, A/C Trading Company, Fowler, Indiana - July 12, 2012
“Anybody who knows about T-storm Weather knows you have done a tremendous job of weather forecasting over the last six weeks.”

Trader, Chicago, Illinois - July 11, 2012
“Your presentation is impressive, good graphics, easy to digest in a short amount of time, focused on the conclusion and not the details that bog down so many other reports.”

Proprietary Trader, Minneapolis, Minnesota - June 11, 2012
“It needs to be recognized that you guys were at the forefront of the declining (2011) corn yield story.”

Wholesale bank, New York, New York - September 8, 2011
“Your track record has been excellent starting with a great job this past summer in U.S. and continuing this year with Argentina.”

Proprietary Trader, Geneva, Switzerland - January 11, 2011
“I have been impressed by your remarkably accurate forecasts, both for here and for South America. You provide me with a most valuable tool for trading, and I have relied on your services heavily. Your presentation is straightforward and easy to understand, and the graphics are clear and helpful. Keep up the great work.”

John Macintosh, Rand Financial Services, Chicago, Illinois - March 23, 2007
“It’s 11:00 PM now, but all afternoon and evening I’ve been watching on my screen this huge blob of energy and rain sweep across Nebraska, Iowa, and northern Missouri. A billion dollar rain for farmers there for sure. Thanks for your forecast and updates. They helped. Good call!”

Grain Trader, Chicago, Illinois - July 23, 2006

Services

	U.S. and South America Package
Changing expectations and uncertainty surrounding yields often result in large price movements. YieldCast® reduces risk by providing a subscription-based weekly report that forecasts U.S. average corn and soybean yields. Learn More >>	This is our main service. It helps subscribers manage grain and oilseed risk with daily weather forecasts and analyses for the United States, Argentina, Brazil, and Paraguay. Learn More >>
Long-Range Package	Worldwide Package:
This service forecasts and analyzes global and long-range weather events that are important to the worldwide supply of grains and oilseeds. Subscribers to this Package must also subscribe to the U.S. and South America Package. Learn More >>	This service provides subscribers with daily weather forecasts for key grain and oilseed areas of the world. Subscribers to this Package must also subscribe to the Long-Range Package. Learn More >>