*UPDATED 10/15/13* Join the CoCoRaHS Observing Network!

We need You!  Join the CoCoRaHS precipitation observing team! 

What is CoCoRaHS?

The Community Collaborative Rain, Hail, & Snow Network (CoCoRaHS) is a nationwide volunteer reporting network that provides precipitation measurements for natural resource, education and research applications. The National Weather Service uses CoCoRaHS precipitation data daily in river forecast models, flood and drought forecasts, and precipitation and snowfall maps and tables.

CoCoRaHS (pronounced co-co-raws) allows observers to share their precipitation measurements via the Internet, which can be used by agencies who need accurate, real-time precipitation data for various purposes. The only equipment needed to join CoCoRaHS is a standard 4" diameter plastic rain gage (provided upon sign up) and access to the Internet to enter reports. Observers can report precipitation daily or only on days when they are able to take measurements. CoCoRaHS observers can also send real-time severe weather reports to the National Weather Service (NWS); including hail size, flooding, storm damage, and excessive rainfall, which greatly assist meteorologists in determining the impact of storms on local communities.

Due to Wyoming's expansiveness, the CoCoRaHS network is an invaluable tool for the NWS and other state and federal agencies to help fill-in the gaps due to a lack of available observation sites. This shortfall is mitigated by volunteers from across the state. Precipitation, in both winter and summer, can have wide ranging values. The more people reporting these data can greatly assist the NWS in providing better forecasts and warnings. Volunteers are welcome from across the state, but currently we could use more people from Big Horn, Washakie and Johnson counties, portions of Fremont county, specifically the Riverton and Dubois areas, portions of Lincoln county in the Alpine and Kemmerer areas, and around Pinedale in Sublette County.

CoCoRaHS training sessions

Date Location Address
Tuesday, September 10th 6pm Buffalo Johnson County Public Health 85 Klondike Dr
Wednesday, September 11th 6pm Worland Washakie County Extension Office 1200 Culbertson Ave
Thursday, September 12th 6pm Alpine Alpine Civic Center 121 US Hwy 89
Thursday, September 19th 6pm Pinedale Tip Top Search & Rescue 138 N Bridger Ave
Tuesday, September 24th 6pm Kemmerer South Lincoln Training & Event Center 215 Wy Hwy 233
Tuesday, October 15th 6pm Dubois USFS Office 1403 W Ramshorn St  CANCELLED
Thursday, October 17th 6pm Riverton Riverton Branch Library Community Room  CANCELLED


For additional information on the CoCoRaHS program, to view CoCoRaHS data, or to join the CoCoRaHS team, visit the CoCoRaHS web site at http://www.cocorahs.org  You may also contact the CoCoRaHS State Coordinator, Tony Bergantino at 307-766-3786 or Antonius@uwyo.edu or the Regional Coordinator, Trevor LaVoie at 307-857-3898.

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