Digital Atmosphere
Forecast Laboratory
Forecast Simulator
GNC Charts for Dig. Atm.


Historical data
Data By The Day
ARGON database system


Forecasters Reference Workbook
Weather Analysis & Forecasting
Weather Map Handbook
Severe Storm Forecasting
Weather Radar Handbook
Weather Forecasting Red Book
Storm Chasing Handbook
Weather Forecasting Handbook
Extreme American Weather


The Art of Storm Chasing


Ordering info
Station identifiers


Meteorology Lab (YouTube)
Training via Skype


Deutschland (Germany)

Weather Graphics is your source for weather forecasting tools, software, and books.


"Thank you for actually penning these books. They are a wonderful review of the concepts without the excessive (but necessary) amount of math behind them. I wish they had been recommended as supplements in both my undergrad and graduate years."

— Josh Tobias, 2017

  "I have used Digital Atmosphere for quite sometime and consider it to be one of the most straightforward, comprehensive, and operationally useful programs on my server. I have found it to be invaluable for my day-to-day analyses and forecasting as well as my ongoing research. Tim is also extremely helpful and absolutely indispensable when it comes to locating scripts, the best datasets, and even professional contacts to help make any organization as productive as possible."

Chris Robbins, iWeatherNet

"The quality of your products is second to none."

— C. Brian Batey

"Thanks Tim for your quick response (we like that at FedEx) about our Professional Versions! As we're a 24/7 operation, we're look forward to augmenting our present weather system with Digital Atmosphere."

— Mel Bradley, FedEx Operations

"Wow. Your books are incredibly technical and useful. I consider myself a very amateur weather watcher and feel that I am already ahead of the curve. Thank you."

— Terry W. Taylor

"The NEXRAD support is truly awesome and easy to use – and the ‘other’ feature just really tops it off. This is about my sixth email tonight – the other five being to other spotters in the area telling them they just have to download Digital Atmosphere and give it a serious going over."

— David Cashion

"I'm really looking forward to the next phase of Digital Atmosphere Workstation. I'm sure it will be as excellent as all your other products."

— Simon Keeling
Weather Consultancy Services, UK

"I run and manage a number of festival type events and Digital Atmosphere is able to produce charts that I can use for normal weather forecasting with a fair degree of accuracy and in particular wind speed and direction that is crucial to many of events."

— Robert Connolly, GI7IVX

"The archive data arrived today. WOW! What an amazing set of data! Thanks again for all the extras that you included as well!"

— Bryan Bollman, IA

"We do run GEMPAK and all the Unidata software also, but your package has numerous advantages, the biggest being Windows."

— Anonymous

"I am very impressed with what you have done. I have already shown several people at work your site. I plan on talking to our MIC [Meteorologist In Charge] soon to see if we can get Digital Atmosphere in the office to complement/supplement AWIPS."

— Ken Simosko, NWS, Pocatello

"This new version is even better than the older version which was awesome! Your programming skills and met knowledge amaze me!"

— Chris Kincaid


SURPRISE: New Digital Atmosphere upgrade
Digital Atmosphere 2017 V3.0 has been released today, September 21, and is available in the downloads section. I have gradually been getting back into the role of programming and working to bring the software current with new features and enhancements, along with bug fixes.

The new Digital Atmosphere 2017 has been updated to handle dual-polarization radar data. Significant work is ongoing and there will be additional releases during the days and weeks ahead this fall. For those who are tired of the old versions and want the new updates, you can bring your license current for a discounted price (offer expires October 1) at the upgrade page, and avoid being left behind. I thank you for your support! -Tim Vasquez
Digital Atmosphere
Digital Atmosphere is a full-featured Windows software package that allows you to plot detailed surface and upper air maps, soundings, and radar charts anywhere in the world. This software program has been under development since 1992 and is used by hundreds of hobbyists, companies, and weather agencies. See it in action at: AustralianWeatherNews, MeteoCenter Russia, and Weather Roanoke. Since it can construct ultra-high resolution weather maps, it is used for graphics content in Weatherwise and IFR Magazine magazines.
Windows 7/Vista/2000/XP

Standard Version: $89 | Info | Buy
Professional Version: $199 | Info | Buy
There's no risk getting the Standard Version, as it is upgradable at any time to the Professional Version for the difference in price.
In stock
Forecast Laboratory 2015
Our popular forecast storm chase simulation was rewritten and updated in late 2014 and offers a choice of either chase simulator mode or single-point forecasting, with extensive verification metrics. This package lets you try your hand at forecasting on hundreds of spring days spanning 2010 to 2014 -- including big outbreaks, ordinary scenarios, and null events. You never quite know what you'll get! Start out perusing the morning charts. You get 140 of them each day, including SPC diagnostics and even SPC outlooks if you want to peek. After you looked at the charts, you need to pick a starting point for your chasemobile. Then start it on its way towards the target! As severe weather unfolds, you'll see text reports stream in from locations close to your chasemobile. A karma rating keeps track of how well or disappointing your chase is doing, comparing your own success and what's going on just over the horizon. A thorough set of SPC summaries tracks how you're doing.
Windows 7/Vista/2000/XP

$49.00 | Info | Buy
In stock
Forecast Simulator
Do you have what it takes to get storm chasers to the target? This educational forecasting simulation draws from 250 major chase days between 1979 and 2009, presenting users with the morning analysis charts and high-resolution hourly satellite images. Page forward hour by hour and refine the forecast, then once storms develop, compare how well you did with the locations of actual tornadoes, hail, and wind.
Windows 7/Vista/2000/XP

$49.95 | Info | Buy
In stock
WX-SIM is a dynamic forecast model operating at one location, forecasting the weather for that spot. WX-SIM exploits observed conditions and centralized forecast data from NOAA and combines it with its own sophisticated physics model of the local atmosphere. The result? A singularly accurate forecast for the location of your choice. This makes it the tool of choice for the agricultural industry, aviation forecasters, and sporting venues. (Windows 7/Vista/2000/XP)

WX-SIM Standard: $129.00 | Info | Buy
WX-SIM Professional: $249.00 | Info | Buy
We recommend the Standard version for most users. For those who would like to upgrade later, the Professional version is available for the difference in price.
In stock
Forecaster's Handbook Series
We are the sole publisher of the Forecaster's Handbook Series, written by Tim Vasquez, an actual operational forecaster with 10 years in Air Force weather and 15 years in private practice. These are not school textbooks or scholarly works -- they are guidebooks and references for practicing meteorologists and are perfect for not only professionals but hobbyists, broadcast meteorologists, storm chasers, pilots, flight dispatchers, and anyone who deals with forecasting on a regular basis. The technical level spans the entire range of intermediate to advanced in an easy-to-understand format. Excessive introductory content and complicated math are omitted, and the concepts and examples focus squarely on actual forecast considerations, real life cases, and those rare bits of wisdom that make or break a forecast. And for university students, the experience distilled in these books contains valuable insight into the forecast process that simply isn't conveyed by courses filled with emphasis on dynamics and physics.
Weather Radar Handbook (Orange). Released in 2013, Weather Radar Handbook is our first full color forecasting book, describing how to make the most of radar technology and understand the new polarimetric radar technology. More...
Severe Storm Forecasting (Blue). Released in 2010, this covers the essentials of severe thunderstorm forecasting, including analysis, radar, and satellite imagery. Hail, lightning, tornadoes, MCS storms, and much more are explained, along with what to look for when forecasting them. More...
Weather Map Handbook (Green). Updated in 2009, this book focuses on Internet weather charts and explains in detail how each one is used, along with its advantages and pitfalls. Website suggestions are included. More...
Weather Forecasting Red Book (Red). A 300-page reference book filled with forecasting techniques, methods, and rules of thumb, from the arcane to the state-of-the-art. If there's any conversion, procedure, or technique that exists, it's in here. A must-have for the forecast desk. More...
Storm Chasing Handbook (Black). A three-part book containing an introduction to storm chasing, the basics of severe weather, and a Great Plains travel guide. Illustrated by pioneer chaser David Hoadley. Essential for any weather hobbyist in the central United States. More...
Weather Analysis & Forecasting Handbook (Purple). This new upgrade of the older Weather Forecasting Handbook focuses on operational, practical methods and instills the building blocks a forecaster needs to have. Observation, basic physics, dynamics, winter weather, and tropical weather are covered. More...
Extreme American Weather (Brown). This title looks at dozens of events in United States history from a forecasting perspective, ranging from the Great Freeze of 1899 to the Dustbowl to the Chicago heat wave of 1995. It teaches prediction of unusual events by example. More...

(Click on any book for more information)
Archives Datasets
When you want to look at past weather situations, our Archives Datasets give you tremendous amounts of historical information.
Global Surface Archives is a massive 60 GB package of METAR and SYNOP data for the entire world, spanning 1930 to 2014, and is plottable by Digital Atmosphere or any program capable of handling METAR or SYNOP format. Original METAR remarks transmitted by the observer go back to 1973!
Global Upper Archives offers upper air data for the world spanning 1930 to 2014. This, too, is in a standard coded format (WMO TEMP) and is plottable by Digital Atmosphere, RAOB, SHARP, and many other programs.
Total NCEP gives key NCEP charts going back to 1998 which constitute the official surface and upper-air analyses, twice a day, for North America.
Total NWS is packed with forecast discussions, warnings, watches, zone forecasts, and much more going back 10 years into the past; an excellent keepsake for hobbyists, researchers, and investigators.

$99-249 | Info and ordering
For analysts, industry researchers, and researchers who want it all, ARGON is a ultra-massive database containing over 100 GB of weather data in MySQL database format. It's all contained on an expandable 250 GB USB hard drive. There is complete observation coverage for North America from federal weather observation sites, with data content spanning January 1931 to November 2009. With the power of SQL, you have unprecedented capability to analyze statistics and weather records. You can export data to spreadsheets, compute averages, develop climate algorithms, and much more! Optional updates are available in the form of DVD patches sent twice a year.

$995 | Info and ordering

Bonus data for Forecast Laboratory
All users of Forecast Laboratory 2015 are entitled to receive free of charge the bonus satellite pack, which fills in hourly satellite data for almost all the case dates. This is available only via an 800 MB download from our website. To get this download, contact us.

Running apps on the Mac OS
We have received several questions about running our applications under the Mac OS. All of our programs are reported to work perfectly on Mac OS X using the WinOnX emulator. User Filippos Tymvios from Cyprus reports, "The installation is very easy: you start the emulator and double click on the Digital Atmosphere .exe. The only problem was noticed when working and switching from more than 3 osx applications to DA. The emulator freezes and you have to restart it - and that's all." The WinOnX website is located at

Free weather charts
As a service to all forecasters, we offer a large collection of reference charts for download, including Skew-Ts, tephigrams, weather plotting charts, station locator charts, and other graphics. There are several varieties of skew-T log P diagrams and also some obscure ones, like pastagrams and arowagrams. These are all scans of actual vellum diagrams I have in my collection. Though we're now in the Internet age and paper is largely obsolete, there is still nothing like having the original diagrams in order to work out special problems. Enjoy!   - Tim Vasquez

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