Weather is a factor that can seriously impact your business, and having accurate information in a timely manner can help you make better decisions. We have a special presentation, AccuWeather: Weather, GIS and Big Data, planned this year at Esri … Continue reading
With the 10.3 release, a new Python library, netCDF4, began shipping as part of the ArcGIS platform. netCDF4 allows you to easily inspect, read, aggregate and write netCDF files. NetCDF (Network Common Data Form) is one of the most … Continue reading
ArcGIS Online includes a living atlas of the world with beautiful and authoritative maps on many topics, including a rich collection of earth observation maps and layers that describe our planet’s current conditions, from earthquakes and fires to severe weather … Continue reading
Join Esri at the American Water Resources Association Spring Specialty Conference (awra.org/meetings/Baltimore2011/). We will show you ways Esri’s geographic information systems (GIS) can help you better understand climate change and how you can use GIS to support long-term water planning and policy decisions. Use GIS to
- Capture, access, manage, and display large, complex spatial datasets.
- Visualize, map, and analyze relationships between water resources, weather, and society.
- Build models of geographic processes that impact the environment.
- Share data and maps that support community awareness, discussion, and action.
Visit Esri in Booth #11.
Sheraton Inner Harbor Hotel
April 18 – 20, 2011
An enormous blizzard has left the midwest crippled, taxing resources scrambling to assist stranded motorists, deal with power outages, and remove snow. The huge storm has cut a swath from Texas to Maine closing schools, airports, highways, and impacting roughly 30 states.
You can keep an eye on the storm and current weather conditions and make your own maps using ArcGIS Online. Here’s some of the real-time weather resources that you’ll find.
Opening the map we can see how things look at the moment. Looks like the area north of Boston will get more than 8 inches of snow, as shown in the snow forecast layer legend.
Where is this information coming from? Hover over the map thumbnail in the Gallery and click to view the details.
Viewing the map details we’ll learn that the map is referencing a snow amount forecast service published by the National Weather Service (NOAA/NWS).
You can also mashup your own map by searching on keywords like “weather” and authoring your own weather map. Here’s an example showing wind speed and direction along with maximum temperature forecasts.
Blizzards, ice storms, floods, mudslides, torrential rains, and more weather related mayhem have seemingly plagued the nation the last couple of weeks. Here’s a way to keep an eye on the current weather watches and warnings using Explorer and ArcGIS Online.
ArcGIS Explorer Online
We’ll start with Explorer Online. After starting the app click Search
And then click ArcGIS to search for anything related to “weather warnings” in ArcGIS Online, as shown below:
This service comes from NOAA/National Weather Service, and includes current weather warnings for the USA. It is published via ArcGIS Server as a live map service. The NHSS Watches/Warnings contains all of the current weather watches and warnings issued by NOAA’s National Weather Service (NWS).
Once added to the map we can use Identify to learn more about the warning, and click a link to weather.gov to view more detailed information.
ArcGIS Explorer Desktop
Using Explorer Desktop the procedure is very similar. First click Add Content, then choose to add from ArcGIS Online:
Then in the ArcGIS Online window a search string can be entered, in this case “weather warning:”
Looking at the search results one thing that will be different will be the types of items returned from ArcGIS Online. Since Explorer Desktop can use more than map and layer services, we’ll also see items like layer packages, layer files, etc. We checked the item description (highlighted in yellow below) to look for a service that we can add to our existing map:
In Explorer Desktop popup windows are checked off by default when you add a service layer. To enable popups select the item and open its properties, then check the popup window on, as shown below:
Now we’ve used that same service in both Explorer Online, and also Explorer Desktop.
Explorer Desktop also enables us to toggle our viewing mode to 3D, so we can view the warnings on a globe.
With another successful User Conference behind me, the focus turns back to the Resource Center and providing the community with content and ideas. For those that were able to attend the UC this year, I hope you were able to get all your questions answered by our knowledgeable staff and got your fill of what the new ArcGIS 10 system is. If you didn’t get to join us this year, click here for some useful information and content from the conference.
I’ve received questions in the past about consuming real-time or near real-time data, like weather, in ArcGIS and the best practices in how to do this. There is a template developed for our Public Safety Resource Center that organizes live streams of
information from the internet into an ArcSDE geodatabase. A series of
server-side processes ensure information remains current. Once aggregated, the information can be consumed in the ArcGIS System.
This is a powerful tool to have available since all utilities deal with weather on a daily basis as it impacts on how you do your job. This same methodology could be applied to other systems outside of weather, however, the mechanism on how the data is received could change.
To get directly to the template click here.
Don’t forget to check out the video on how to use this template as well.
The other day we posted about how you can find and use ArcGIS Explorer add-ins from ArcGIS Explorer Labs. Last night the weather was bit crazy in Redlands with high winds. And on the news this morning were reports about a big storm hitting Denver. So we decided we’d take a closer look at one of the add-in in Labs – the Weather Forecast add-in which uses weather services from Weather4Webs.com and a placefinder service from geonames.org. This unsupported sample was built by Dara Burlo, one of the ArcGIS Explorer product engineers.
First, as described in the earlier post, go to the Labs group and grab the Weather Forecast add-in. After you add it you’ll see something like this on your add-ins tab:
Click the add-in, and you’ll see a dialog open. Use the button to click on the map.
Under the hood the coordinate location is obtained via the mouse click, and using the geonames API the nearest city is found. You’ll see the city name displayed (above we clicked in Redlands, CA).
Then choose from 1 to 7 day forecasts (the default is a 5 day forecast) and click Find Forecast. The city name is passed to weather4webs, which returns the desired forecast for the location you pointed to.
This Weather Channel article reviews the 2008 severe weather season, and makes for a very interesting, if sobering, read.
We noted that the 4th graphic in the article shows ArcGIS Explorer displaying a tornado path across downtown Atlanta, and was produced by the National Weather Service.