CASA RadarCollege & University
Five years ago, we installed the first CASA Radar at UTA via helicopter. Since then, our multi-sector consortium has installed 6 more radars that are providing fine-scale weather observations across the metroplex to Public Safety officials.
5 Years ago today -The CASA Radar network in SW Oklahoma captured this EF4 tornado as it developed over Chickasha, OK. Several minutes later, Lee Kuhlman of Newcastle (one of our great EM/Storm spotter collaborators) would use our rapidly updating data to track the tornado as it took a turn towards the north. He was able to warn first responders in the path of the tornado and position them for quick response to the impacted areas. This storm showed how important high res data was for EMs protecting their jurisdictions, and led (much to Lee's chagrin) to the formation of our DFW Testbed.
Our public safety partners talking about how they brought CASA radars to DFW. Juan Ortiz, Fort Worth, Molly McFadden, NCTCOG, Chase Wheeler, Grand Prairie at the Texas Homeland Security & Emergency Management Conference.
Ellis County tornado from 12/26. You can see the hook echo and then a "donut hole" as it goes over the churches that sustained damage on/near Ovilla Rd in Ellis county. Fortunately no deaths have been reported for this tornado. Kudos to our CASA Ridgeline instruments radar. http://www.rli-radar.com/rli/
There was significant flooding in Arlington last night. CASA Rainfall products (QPE) showed a maximum of 3.25" of rain in Arlington last night, while everyone else said rain was around 2 inches based on rain gauges. We did a quick comparison with our data, and here's what we saw:
> The CASA data matched up to the rain gauges pretty well.
> There were no rain gauges in the areas where CASA reported 3+ inches of rain.
Rain can vary a lot over small areas. Using CASA rainfall products is like having a precip. gauge every 800 ft. See the comparison below. Caveats: this is unadjusted rain gauge data, comparison between gauge locations and radar data is done visually.
Hats off to all the public safety officials and the NWS Fort Worth for their hard, hard work over the past month! The cases are coming fast and furious. Here's another EFO tornado near Waxahachie, TX from 5/19.
The network got quite a work out on 4/24. We're analyzing data and talking to our EM and NWS collaborators about how they used the data in real time, and learning about strengths and weaknesses. More info coming soon. In the mean time, here's a CASA radar view of the EF0 tornado and high winds in Ellis County. Transparent shots show the streets underneath. This is at about 750 feet above the radar.
This short video provides an overview of the DFW project. However, it wouldn't be happening without all the hard work by a dedicated group of physical, technical and social scientists from UMass, Colorado State University, U. Oklahoma, U. Puerto Rico Mayaguez, U. of Delaware, Drexel, U. Va, U. Colorado, Colorado Springs, UTA, and UNT who have been working on CASA for years. We also have a great group of local collaborators: the North Central Texas Council of Governments, the local NWS Fort Worth/Dallas office, media, EMs, and the many cities and towns that support the project. Lastly, EWR Radar and Ridgeline Instruments have been instrumental in building out the radar network to where it is. It's our partnership in action!
Several new smaller scale radars know as 'CASA' have been placed across the DFW Metroplex recently. These radars are still experimental, but here, you can see h...ow snow appears on these radars versus anomalous propagation or 'AP'(False returns). These radars can be helpful similar to the Terminal Doppler radars (TDWR) at the bigger airports within the Metroplex. This data is not available outside of the National Weather Service and is still currently under testing. www.srh.noaa.gov/fwd
This image shows that some of the hardest hit areas in Arlington were in ~100mph wind area. We're working with the NWS Fort Worth to validate the CASA data against other radar data and wind measurements. This high wind happened just 2.5 miles from the radar at 15:56 CDT.
The CASA radar network reported ~100mph winds in yesterday's (10/2/14) storm which caused lots of damage in Arlington. The attached single radar data shows velocity folding in the middle. We'll report more precise wind speed later.