Tag: aerisweather api

October 21

Create Animated Weather Maps with Leaflet and AerisWeather

Leaflet is the leading open-source JavaScript library for responsive, detailed, and extensible maps. Encompassing just 39 kilobytes of JavaScript code, this lightweight dependency takes advantage of the powerful OpenStreetMap basemap and supports both standard geocoded raster and vector imagery as well as WMS tile layers. AerisWeather users have long requested a tutorial teaching how to integrate with this library and we’re excited to deliver a solution. Building on previous iterations of tutorials where we’ve shown AerisWeather users how to use multiple tile servers, we’ll walk through integrating the AerisWeather Mapping Platform (AMP) with Leaflet’s powerful tile mapping library to create...

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October 14

NOAA: 85% Chance of La Nina Winter – No Correlation Between October Cold Snaps and Winters To Follow

Graphic credit: Minnesota DNR. Does Snow in October Mean We’re In For a Rough Winter? The short answer is no. And The Minnesota DNR has the data to back that up: “…So, do early snows tell us anything about the coming winter? In short, no. It appears that an October snow is just an October snow, and has no bearing on the remainder of winter. From 1884 through 2019, 45 out of 136 Octobers in the Twin Cities have seen at least one day with measurable snow. The winters that followed those instances of snowfall have spanned nearly the entire...

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October 2

Are Long Range Forecasts Getting Better? California Glass Fire Incinerating 1 Acre Every 5 Seconds

A Hopeful Forecast: More Accurate Long-Term Weather Predictions. Good news (for people living in the tropics) but pesky chaos theory quickly comes into play – don’t get your hopes too high too fast. The New York Times (paywall) reports; here’s an excerpt: “...In the ’90s, we had almost no satellite observations in the southern hemisphere,” she said. “Since then, the number and quality of satellite observations has increased substantially,” so our ability to make accurate forecasts in the southern hemisphere is almost as good as in the northern hemisphere. Additionally, the global weather models that are now in development can...

October 1

New Weather Conditions Summary Endpoint

We’ve recently released our new weather conditions endpoint, which includes significant improvements since we first released it in beta. And to complement the conditions endpoint, we are announcing our new conditions/summary endpoint! What are condition summaries? The core conditions endpoint provides global, gap-free weather conditions for a specific point in time or on hourly intervals. However, you may prefer a summary of weather conditions over time, such as a day’s minimum and maximum values. This use-case is perfect for the conditions summary dataset. The conditions/summary endpoint can provide daily summaries or summaries over custom time ranges, such as over a...

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September 30

Heat Wave Stokes More Fires Western USA – First Flakes for Northern Minnesota by Saturday

ECMWF total snowfall forecast (Kuchera Method) by next Wednesday courtesy of WeatherBell. A few wet snowflakes may mix in with the rain showers with Saturday’s clipper, but with relatively mild ground temperatures I doubt there will be any accumulation. Cooling Off Again Third Week of October. After a milder than average second week of October GFS guidance above suggests a return to average or slightly cooler than average weather looking out about 2-3 weeks. We’ll see – my confidence level is pretty low things will work out exactly like this. Why the 2020 Atlantic Hurricane Season Has Spun Out of...

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September 28

Drought Worsens Over Western USA – New NOAA GEFS Model Upgrade Now Looks Out 35 Days

NOAA Takes Steps To Catch Up to ECMWF For the record, I’d like American Exceptionalism to apply to weather model accuracy. My take: The National Weather Service is the best on the planet, but in recent years the ECMWF (European Centre for Medium Range Weather Forecasts) has been more accurate. Not perfect, but better than NOAA’s models many days. That may change with the recent overhaul of NOAA’s GEFS (Global Ensemble Forecast System) FV3, which reduces resolution to 25km, with better physics – able to peer out 35 days into the future. Stay tuned, and good luck with all these...

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September 25

La Nina Likely This Winter – 5 of California’s 6 Biggest Wildfires Observed Last 2 Months

La Nina Now Likely This Winter I’ve consulted my therapist and my winter outlook remains unchanged: “Colder with some snow”. It’s the details (when, where, how much?) that trip me up every time. According to NOAA, a La Nina cooling phase in the Pacific Ocean should linger into much of the winter. Every La Nina is different (lovely) but most La Nina winters favor more snow for the Northern Plains and Upper Midwest. Snowfall has been erratic in recent years but snow lovers may have reason for hope. In spite of La Nina, NOAA’s Climate Prediction Center predicts a milder...

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September 24

“Beta” Floods Houston, “Teddy” Strikes Canada, Zombie-Storm “Paulette” Rises Again

2020: A Disruptive Year For Weather Too “There are two ways to be fooled. One, to believe what isn’t true. The other is to refuse to believe what is true” wrote 19th century Danish philosopher Soren Kierkegaard. The way 2020 is turning out it’s tempting not to believe our eyes or ears some days. Meteorologists are paying attention to a firehose of freakish weather, tracking volcano-like plumes of smoke and ash from western fires. 140 mph wind gusts from an Iowa derecho. Hurricane Teddy hitting Nova Scotia, Canada! And now Paulette, a “zombie storm” that died, then regenerated over the...

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September 23

Tracking “Beta”, “Teddy” and Massive Smoke Plumes – Limits of Forest Management in Controlling Wildfires

The Limits of Long Range Forecasting “Paul, please help. My little girl is having an outdoor wedding on October 11. Any idea what the weather will be?” Yes I do. Changeable. It might be easier to predict where the stock market will be on October 11. There is (some) forecast skill going out 1-2 weeks for a specific location. Beyond that it’s mostly hand-waving and ruminating about trends. The reason? Chaos Theory. Over 210 million current observations from weather stations, balloons, satellites, ships and planes provide the raw fuel for weather models that simulate what the atmosphere SHOULD look like...

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September 22

“Medicane” in the Mediterranean Sea – “Teddy” and Likely “Wilfred” Threaten U.S.

2 Weeks Out – Cut Off Low Out East? Minnesota and the western two thirds of the USA are forecast to run milder than average, with a closed low causing clouds and showers (and cooler than normal temperatures) over much of the east. Praedictix Briefing: Issued Thursday morning, September 17th, 2020: Tropical Depression Sally Sally Weakening. While Sally has quickly weakened over the past 24 hours as the system continues to move inland, it is still producing heavy rain across portions of the Southeast this morning. As of 4 AM CDT, the center of Sally was 50 miles southeast of...