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Rhode Island C oCoRaHS

CoCoRaHS provides rainfall, snowfall, and hail data through a collaborative network of observers. Learn about the history and value of CoCoRaHS in Rhode Island.

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Rhode Island C oCoRaHS

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  1. Rhode Island CoCoRaHS One small measurement to make… One giant impact that measurement makes upon the millions that depend upon water. The Collaborative, Community, Rain, Hail, and Snow Network

  2. CoCoRaHS Provides… • Rainfall Data • CoCoRaHS has quickly become the largest source of daily precipitation measurements in the United States • Snowfall Data • Observers measure both snowfall depth (new and accumulated) as well as the water content of the snow (SWE) • Hail Data • CoCoRaHS has become one of the largest repositories of hail data in the United States

  3. History of CoCoRaHS Formed after the Fort Collins, CO July, 1997 Flash Flood

  4. History of CoCoRaHS The flood pointed out: • The extreme local variations in rainfall possible from thunderstorms. • The important role individuals can play in measuring, mapping, and reporting precipitation. A B Distance between A and B = 5 miles A = 14.5 inches B = 2.0 inches

  5. CoCoRaHS Timeline • 1997: Spring Creek Flood in Fort Collins, CO on July 28. • 5 lives lost. $200 million in damages. • 1998: CoCoRaHS begins in Colorado with a few dozen volunteers. • 2003: Wyoming is added. • 2004: Kansas is added. • 2005: Seven more states added. • 2006: Five more states added. • 2007: Ten more states added including New York. • 2008: Twelve more states added including Rhode Island and New Jersey. • 2009: Thirteen more states added including the rest of New England. • 2012: Canada is added. • 2014: Puerto Rico is added. • 2015: Virgin Islands are added. • 2016: The Bahamas are added. • We are a growing, international, network! We are a growing, international network!

  6. Rhode Island CoCoRaHS The Value of CoCoRaHS Reports in Rhode Island Since April, 2008 Rhode Island Observers have submitted… • More than 72,000 Daily Reports (Rain, snow, snow depth, & water content) • More than 200 Significant Weather Reports (Heavy rain, heavy snow, flooding, etc.) • More than 130 Condition Monitoring Reports (Effects of precipitation such as drought) These reports: • Provide information to the National Weather Service, water resource officials, researchers, and others. • Fill the gaps between automated reports from airport weather stations. • Are used to help prepare monthly precipitation summaries which are crucial to assess potential drought or flood conditions.

  7. CoCoRaHS Today • Rhode Island In 2018: • 43 active observers • 12,500 Daily Reports • 39 Significant Weather Reports • 76 Condition Monitoring Reports

  8. Rhode Island CoCoRaHS The Original “Core 5”, Still Reporting Today! RI-KN-2, East Greenwich RI-NW-4, Middletown RI-NW-5, Little Compton RI-PR-17, Cranston RI-WS-1, Hope Valley

  9. CoCoRaHS Today • Nationally In 2018: • 21,000 active observers • 4.3M Daily Reports • 5,000 Significant Weather Reports • 14,000 Condition Monitoring Reports

  10. “We Don’t Live at the Airport” Why CoCoRaHS? With CoCoRaHS Without CoCoRaHS Observations from automated stations at airports that are few and far between can’t capture the added detail provided by CoCoRaHS observers. You can see the difference on the maps above.

  11. “At Least One Observer in Every Community” Rhode Island CoCoRaHS Observers Needed In: Block Island Bristol Central Falls East Providence Foster Hopkinton Johnston Narragansett Newport Pawtucket Scituate South Kingstown Warren West Greenwich Our goal is to have at least one observer reporting from all 39 cities and towns in Rhode Island. We’re well on our way! Your reports are needed to help monitor changing patterns of rainfall, snowfall which affect drought and flooding conditions.

  12. Why we strive for a gauge in every community March, 2018 Nor’Easter #1

  13. Rhode Island CoCoRaHS Reporting Is Easy! Report your information online… Or by mobile app! Reading your rain gauge and reporting only takes a few minutes a day. If no rain or snow fell, just report zeros!

  14. Rhode Island CoCoRaHS Significant Weather Reports • Immediately received by the National Weather Service: • Heavy Rain • Heavy Snow • Hail • Storm Damage • Anything else! July 23, 2008: A CoCoRaHS observer in Hope Valley, RI provided an intense rainfall report which led to the issuance of a timely Flash Flood Warning. Life threatening urban flooding was reported in Warwick and Providence at the start of the evening rush hour, where several cars were stranded in more than 2 feet of water, requiring people to be rescued. Warning lead time would have been much less without the CoCoRaHS report!

  15. Rhode Island CoCoRaHS Low Cost Tools… Home-made $30 $35

  16. Rhode Island CoCoRaHS High Value Results! CoCoRaHS Daily Reports are automatically received by National Weather Service offices and used for real-time Storm Report listings

  17. Rhode Island CoCoRaHS High Value Results! CoCoRaHS Daily Reports are automatically received by National Weather Service offices and used for real-time Storm Report listings

  18. Rhode Island CoCoRaHS High Value Results! CoCoRaHS Daily Reports are automatically received by National Weather Service offices and used for real-time Storm Report listings

  19. Rhode Island CoCoRaHS High Value Results! National Snow Database www.nohrsc.noaa.gov Defining where snow is, and where it is now We are “Rulers of the Snow”

  20. Rhode Island CoCoRaHS High Value Results! Condition Monitoring Reports www.droughtreporter.unl.edu

  21. Rhode Island CoCoRaHS High Value Results! Condition Monitoring Reports www.droughtreporter.unl.edu

  22. Rhode Island CoCoRaHS We Define The Climate! CoCoRaHS stations with complete monthly reports become part of the Global Historical Climatological Network (GHCN)

  23. Rhode Island CoCoRaHS We Define The Climate! Water Year Summaries (October to September)are automatically produced for your station

  24. Rhode Island CoCoRaHS We Define The Climate! Water Year Summaries (October to September)are automatically produced for your station

  25. Rhode Island CoCoRaHS We Define The Climate! Water Year Summaries (October to September)are automatically produced for your station

  26. Rhode Island CoCoRaHS Drought Assessment CoCoRaHS reports are used for monthly precipitation summary reports, for input into the national Drought Monitor

  27. Rhode Island CoCoRaHS One small measurement that has a giant impact on those who depend upon water. Measuring the Extremes: Top 10 Daily Rainfalls We call our CoCoRaHS Observers “Rain Gauge Ready.” Many of them report their precipitation totals each day, helping to add to the climate record of Rhode Island. • 12.13 inches, Westerly (September 16-17, 1932) • 8.72 inches, Quonset (September 10-11, 1954) • 7.81 inches, Newport (September 19-20, 1960) • 7.65 inches, Adamsville (August 8-9, 1992) • 7.24 inches, Hope Valley CoCoRaHS (March 29-30, 2010) • 7.01 inches, North Foster (August 18-19, 1991) • 6.93 inches, Wood River Junction (August 6-7, 1946) • 6.80 inches, Woonsocket (October 14-15, 2005) • 6.74 inches, Pawtucket (September 16-17, 1932) • 6.71 inches, Kingston (March 29-30, 2010)

  28. Rhode Island CoCoRaHS One small measurement that has a giant impact on those who depend upon water. Measuring the Extremes: Top 10 Annual Precipitation We call our CoCoRaHS Observers “Rain Gauge Ready.” Many of them report their precipitation totals each day, helping to add to the climate record of Rhode Island. • 74.60 inches, North Scituate (1972) • 71.52 inches, Coventry (2018) • 71.24 inches, Cranston CoCoRaHS (2018) • 71.15 inches, North Foster (2018) • 69.65 inches, Kingston (1983) • 68.40 inches, Woonsocket (2018) • 67.62 inches, East Greenwich CoCoRaHS (2018) • 67.52 inches, Providence/TF Green Airport (1983) • 67.21inches, North Smithfield CoCoRaHS (2018) • 67.06 inches, Coventry 2 (2018)

  29. Rhode Island CoCoRaHS One small measurement that has a giant impact on those who depend upon water. Measuring the Extremes: Top 10 Daily Snowfalls Our CoCoRaHS Observers are “Rulers of the Snow.” They report snowfall (and liquid content), snow depth, and the water content of snow on the ground. This helps assess the potential for flooding, especially in the spring snowmelt season. • 30.0 inches, Woonsocket (February 6-7, 1978) • 25.7 inches, West GlocesterCoCoRaHS (February 8-9, 2013) • 25.1 inches, North Foster (March 12-13, 2018) • 24.4 inches, Woonsocket CoCoRaHS (February 8-9, 2013) • 23.9 inches, Manville CoCoRaHS (February 8-9, 2013) • 23.0 inches, Providence Downtown (February 13-14, 1899) • 21.3 inches, Kingston (February 6-7, 1978) • 21.2 inches, Block Island (January 19-20, 1978) • 21.0 inches, Westerly (February 28-March 1, 1949) • 21.0 inches, Pawtucket CoCoRaHS (February 8-9, 2013)

  30. Rhode Island CoCoRaHS One small measurement that has a giant impact on those who depend upon water. Measuring the Extremes: Top 10 Seasonal Snowfalls We call our CoCoRaHS Observers “Rulers of the Snow.” Many of them submit daily reports year-round, which become part of the climate record of Rhode Island. • 129.1 inches, North Foster (1995-1996) • 121.5 inches, West GlocesterCoCoRaHS (2014-2015) • 104.7 inches, Greenville CoCoRaHS (2014-2015) • 92.5 inches, Woonsocket (1995-1996) • 81.0 inches, Kingston (1893-1894) • 81.0 inches, Cranston CoCoRaHS (2014-2015) • 80.7 inches, Tiverton (2004-2005) • 80.2 inches, Greenville (1947-1948) • 78.6 inches, Woonsocket CoCoRaHS (2010-2011) • 78.2 inches, Providence Downtown (1906-1907)

  31. On Twitter! @RI_CoCoRaHS Rhode Island CoCoRaHS

  32. Rhode Island CoCoRaHS State Page www.cocorahs.org • Monthly newsletter • Observing tips • Other information

  33. Communication Rhode Island CoCoRaHS

  34. How To Join Rhode Island CoCoRaHS • Sign Up: www.cocorahs.org • Obtain a 4” rain gauge • Set up the gauge • View online training • Start reporting!

  35. One small measurement that has a giant impact on those who depend upon water. Rhode Island CoCoRaHS Citizen Science at its Finest! Joe DelliCarpini Southern New EnglandCoCoRaHS Coordinator Joseph.Dellicarpini@noaa.gov (508) 622-3324 The Collaborative, Community, Rain, Hail, and Snow Network

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