Why Do Weather Maps Ignore Canada?Dennis Mersereau · 06/23/14 03:22PM
These Simple Maps Show How Little of the United States Is PopulatedDennis Mersereau · 06/20/14 11:05AM
Blitzortung Is One of the Best, Most Mesmerizing Websites Out ThereDennis Mersereau · 06/12/14 11:18AM
The internet is saturated with websites that give you weather information, and frankly, most of them suck. Very few allow you to see lightning around the world in real-time, and even fewer give you this data for free. But there is one nugget of gold tucked deep in the confines of Europe that gives you the best of the best, all for free.
Colorado Can't Catch a Break This Year. What Gives?Dennis Mersereau · 06/09/14 01:10PM
More Than 2,000 Severe Weather Warnings Issued in the Past WeekDennis Mersereau · 06/08/14 09:28PM
Here are all of the severe thunderstorm (blue), tornado (red), and flash flood warnings (green) issued in the past 7 days. To say that this was an "active week" is an understatement. The past week has seen nearly 2,000 severe weather warnings go into effect, and this doesn't include the 200+ warnings that were issued on Sunday.
Dennis Mersereau · 06/06/14 04:19PM
Map Porn: Counties That See the Worst Weather (on Average) Every YearDennis Mersereau · 06/02/14 12:17PM
These Mesmerizing Gifs Show Moisture Flowing Around the WorldDennis Mersereau · 05/07/14 01:29PM
What Parts Of The Country Get The Worst Weather Predictions?Reuben Fischer-Baum & Dennis Mersereau · 05/02/14 11:50AM
When you check the day's temperature or see if it's going to rain on your way to work, the answer can vary widely depending on where you look. Luckily, the website ForecastAdvisor—which grades the accuracy of U.S. forecasting outlets such as The Weather Channel, National Weather Service (NWS), CustomWeather, and AccuWeather—can help you sort the good from the bad. If you head over to their site you can plug in your zip code and see your local numbers, but they were kind enough to provide us with their raw data for 2013, and the results are pretty surprising.
Dennis Mersereau · 05/01/14 04:30PM
Check out this excellent interactive feature created by Brian Crumpler on the Mayflower/Vilonia, Arkansas EF-4 tornado that touched down on Sunday. The feature blends together radar images, maps, and pictures of the damage to give you an in-depth look at how the tornado evolved along its 40-mile path.
Here's a Map of All 1,232 Severe Weather Warnings Issued in Past WeekDennis Mersereau · 05/01/14 11:30AM
Dozens of National Weather Service offices around the country issued 1,232 severe weather warnings as dangerous storms raked the eastern two-thirds of the United States. The map beautifully illustrates where the worst outbreaks occurred, as well as the general southwest-to-northeast path that the severe storms took.
Cut-Off Low Creates an Awesome Pinwheel of Dry Air Over the SoutheastDennis Mersereau · 04/19/14 01:43PM
A large low pressure system sitting over the southeastern United States is creating quite the sight on satellite imagery this afternoon as it wraps dry air into its core. This is a water vapor image from the GOES satellite, showing the moisture in the atmosphere around 10,000 feet up. Warmer colors indicate drier air, and cooler colors indicate moist air.
Historic Weather Maps: Tornado Outbreak of April 18, 1880Dennis Mersereau · 04/18/14 10:30AM
Here's a Map of Every Severe Weather Warning Issued in the Last WeekDennis Mersereau · 04/05/14 12:30PM
The United States saw 752 severe weather warnings issued across 25 states between last Saturday and yesterday evening. On the map above, blue boxes indicate a severe thunderstorm warning, red indicates a tornado warning, green indicates a flash flood warning, and teal indicates a special marine warning.
Map Porn: Average Date of Year's First Tornado WarningDennis Mersereau · 04/03/14 02:30PM
This map shows the average date that each National Weather Service forecast office issues its first tornado warning every year, based on data from 1986-2013. It's pretty illustrative of how tornado climatology tends to work in the United States. The Deep South sees its first round of severe weather during the winter, and it radiates outwards as the atmosphere begins to warm up through the country.