Your source for forecasting tools, software, and books since 1993

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— Josh Tobias, 2017

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Chris Robbins, iWeatherNet

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— David Cashion

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— Simon Keeling
Weather Consultancy Services, UK

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Weathergraphs - Laminated, reusable forecasting tools & references

Weathergraphs were developed by an experienced meteorologist for use by other forecasters. They are valuable resources to keep at the weather forecasting desk or hung on the wall, and will improve your proficiency at working with weather observations, satellite imagery, and chart analysis. Makes a great gift for forecasters, weather hobbyists, storm spotters, and amateur scientists. The sheets are laminated and printed in full color.

*Note: If you are ordering more than 2 Weathergraphs at once, please contact us for a reduced quote on shipping.


Storm Forecasting Weathergraph

The Storm Forecasting Weathergraph covers all the modern instability diagnostic techniques used in the 2020s (CAPE, DCAPE, SCP, STP, BRN, and parcel lift methods) while omitting most of the outdated indices. There's an erasable hodograph you can use with any water-based marker, along with reference information for constructing the Bunkers Method and Critical Angle. On the back are various storm types as shown on WSR-88D reflectivity, each image scaled equally on the chart.

$12.95, 11 x 17 inches, double sided laminated cardstock.

Skew-T log-P diagram

The skew-T log-P diagram is commonly used to plot the temperature and dewpoint data obtained from soundings. It provides a convenient way to visually estimate thermodynamic quantities vital to forecasting severe weather, winter precipitation type, and many other important applications. This full color diagram works with dry or wet-erase markers so you can use it over and over!

On the reverse is a reference chart explaining the elements of the skew-T diagram, as well as a list of severe weather indices often computed using these diagrams and their meanings. For more in depth information about meteorological thermodynamics, check out our Instability, Skew-T & Hodograph Handbook.

$12.95, 11 x 17 inches, double sided laminated cardstock.

Original Weathergraph

The original Weathergraph is a handy reference for forecasters and hobbyists alike. On one side is a wealth of information useful in producing and interpreting forecasts. The reverse is focused on observations and plotting. Click on the image to the left for a larger view to see exactly what is included in this reference tool. Now updated with current extended Fujita and Saffir-Simpson scales.

$12.95, 11 x 17 inches, double sided laminated cardstock.

Cloud Reference Chart

Our Cloud Reference Chart is a color cloud atlas showing all 27 primary cloud types recognized by the World Meteorological Organization, along with their standard symbol and abbreviation. These types are extensively used in SYNOP reports as well as some METAR observations. The chart incorporates new information from the 2017 edition of the International Cloud Atlas. The reverse side provides a detailed breakdown of all cloud genera, species, varieties, supplementary features, and accessory clouds in an easy-to-use format that is color-coded for easy reference. It also includes a precipitation-to-cloud-type conversion matrix.

$12.95, 11 x 17 inches, double sided laminated cardstock.

Hurricane Tracking Chart

Our Hurricane Tracking Chart has a convenient reusable tracking chart for Atlantic tropical systems on the front, and useful, fully up to date reference information on the back. It includes details on all the Saffir Simpson categories, with expected damage as well as standard infrared and Dvorak satellite appearances, and includes a never-before seen map showing showing the historical areas of the Gulf and Atlantic where hurricanes first reach various intensities. All the modern hurricane models and their codes used in the 2020s are included as a valuable reference. Full color. A great gift for any tropical weather enthusiast.

$12.95, 11 x 17 inches, double sided laminated cardstock.