National Weatherperson's Day
by Jim Allsopp, Warning Coordination Meteorologist, NWS Chicago
Today, February 5th is National Weatherperson's Day, commemorating the birth of John Jeffries in 1745. Jeffries, a Boston physician and one of America's first weather observers, began taking daily weather observations in Boston in 1774. He took the first balloon weather observation over London in 1784. This is a day to recognize the men and women who collectively provide Americans with the best weather, water, and climate forecasts and warning services of any nation.
The men and women at your local National Weather Service (NWS) forecast office gather the raw weather data, analyze the data, and study numerical computer models in order to issue the weather and river forecasts and warnings to protect life and property. Specialized marine and aviation forecasts help enhance the Nation’s economy. Spot forecasts help firefighters control wildfires and emergency management officials contain hazardous chemical spills. Extensive climate records help engineers, architects, researchers, insurance companies, and utilities.
The primary mission of the NWS is to provide the American public with the best possible warning service to save lives. Recent severe weather statistics show that we continue to improve our capability to warn the public of impending hazardous weather. Nationally, lead time for flash flood warnings improved from 22 minutes in 1993 to 78 minutes in 2008. Accuracy over the same time period increased from 71 percent to 91 percent. Lead time for tornado warnings has increased from 6 minutes in 1993 to 13 minutes today. Tornado warning accuracy increased from 43 percent to 72 percent. Winter storm accuracy in 2008 was 89 percent with an average lead time of 17 hours. Since 1990, the Tropical Prediction Center’s 24 to 72 hour tropical storm forecast track errors have been reduced by more than 50%. These more accurate and longer lead time warnings help communities stay safe.
But the NWS couldn't accomplish its mission without a diverse group of partners helping in the process.
Nearly 300,000 volunteer storm spotters are trained by the NWS to provide visual reports of severe weather conditions to forecast offices and local emergency management officials. Volunteer amateur radio operators provide critical emergency communications during severe weather.
The La Crosse NWS office has a network of 88 dedicated volunteer Cooperative Observers throughout southeast Minnesota, northeast Iowa, and western Wisconsin. In addition, there is nearly a hundred supplemental rain and snow observers in the area. Around 50 volunteer observers report through the new Community Collaborative Rain, Hail, and Snow (CoCoRaHS) network. Between 1500 and 1700 people attend Skywarn severe storm spotter training classes in the local area each year.
Most of the colorful weather graphics seen on television and in newspapers come from another member of the America's weather team. Commercial weather companies enhance the presentation of the NWS data and information for their clients in the media and in many weather-sensitive industries. They also provide customized forecasts and services for clients. And finally, television weathercasters are the most visible members of the America's weather team. They are the trusted faces many people turn to for weather information. The NWS depends on TV weathercasters to relay the NWS’s official watches and warnings for hazardous weather to the public.
On National Weatherperson's Day, the NWS would like to thank all of the volunteers, and our partners in television and commercial weather services. Thank you!
John Jeffries, an American physician, flew across the English Channel with Frenchman Jean Blanchard
Photo courtesy of NASA
Tornado over Will County IL June 7, 2008.
Early photo of a Cooperative Observer