​Community Collaborative Rain, Hail, and Snow Network (CoCoRaHS) is a non-profit weather observing network with thousands of volunteers across the United States, Canada, and The Bahamas.  These volunteer weather observers take daily weather reports from their homes and businesses and submit them to the CoCoRaHS database, which is used to help meteorologists create forecasts, publish weather alerts to save lives and property, and assist in the diverse professional meteorology community. 

The best part about it – it only takes a few minutes each day, you can do it from home, and the only requirement is to have enthusiasm about watching and reporting the weather, with a desire to learn. 

What’s really cool is that CoCoRaHS is utilized in the United States by the National Weather Service and other professional meteorological agencies.  If you record an inch of rain at your house and report it to CoCoRaHS via their online platform, the National Weather Service and other meteorologists will use it to assist in forecasting.  If you report large hail, flooding, or other dangerous weather – your report will be documented and remain valuable for research, insurance claims, damage surveys, among other professional uses.  Weekly condition monitoring reports are also submitted by hundreds to thousands of users to assist in drought monitoring.

​Here’s the thing – it’s so easy to become a part of the program, my toddler daughter even does it with me.  While I’m a professional meteorologist, it’s an absolute blast walking out each morning with my youngster who is still trying to learn her ABC’s to check the rain gauge.  Through the routine, she learns the very basics about weather and its effects, about the responsibility of making accurate reports, about getting work done on time, and – very important – that Dad’s job is pretty cool.  

So, how do you start?

It’s easy! Go to CoCoRaHS.org, then click “Join CoCoRaHS” on the left side of the webpage.  Volunteering is absolutely free, but you will need to purchase a high-quality rain gauge of certain specifications before you can make rainfall reports to ensure that reports are standardized across the network using the same equipment.  I’ve listed some websites below (price may or may not include shipping). There is also online training on the CoCoRaHS website, and a local coordinator will get in touch with you to assist in any questions you may have. That’s it!

​It’s so easy, everyone should do it. Become an important part of CoCoRaHS today!

130 passengers on American Airlines Flight 1897 from San Antonio to Phoenix on Sunday (June 3rd) had a scary ride as their aircraft slammed head-on into a hail storm at 34,000 feet over South-Central New Mexico.  Ultimately,  this aircraft decided to make an emergency landing in El Paso - apparently using on-board instrumentation and a cockpit side-window to land since the windshield was shattered by golf-ball to tennis-ball size hail.  

A wide swath of thunderstorms - including severe weather - was occurring through West Texas and New Mexico through the afternoon and evening.  The normal jet route would take the Airbus A319 airliner along the same route as the Interstate 10 through West Texas - but due to weather, it appears Air Traffic Control routed traffic above just west of Odessa, Texas to Carlsbad, New Mexico, to near Capitan, New Mexico.  That's where the real trouble began.

Attempting to avoid the strongest storms, the flight was routed over the Sierra Blanca mountain range north of Ruidoso, New Mexico, where - at first look on the radar - appears to show a decent break in the weather.  A slight blip of rainfall on the above image is shown just ahead of the nose of the aircraft, but does not appear to be of much significance.  Weather radar on-board the Airbus has not been released, but may have likely showed a different story. Here's what I found when I did some digging... 

As you can see, significant weather radar reflectivity is noted in at the same place as the first image - why the difference?  This is because the first image (top-down look) showed "Base Reflectivity" - the scan of the radar at the lowest level.  The cross-section image shows the entire storm, and is likely to show a bit more of what the on-board weather radar would have shown, although it is possible that the frequency may have been attenuated (degraded by heavy precipitation) at some point - or the angle at which the airplane radar was broadcasted did not solicit correct feedback returns.  

From the looks of things based on the top-down view and base-reflectivity imagery, this route appears to be the best way around a long line of storms.  However - the atmospheric cross-section above proved that this was one of the worst places to cross. 

Unfortunatly, this part of New Mexico is plagued by some radar dead-spots.  It's rural, and the nearest radar (Alamogordo) sits on the west side of a mountain while this aircraft was approaching from the east - and the weather was on this east side of the mountain - making it a bit more difficult to "see".  

Sometimes you don't have to have words to explain how amazing God's creation is.  Satellite Images, all from the same time frame on October 24th of a well-developed Low Pressure offshore of the Pacific Northwest Coast.  Enjoy.

-Meteorologist Dan Schreiber