This measures the accuracy of wind speed forecasts, which are important for marine commerce. Accuracy is defined in terms of error. Legacy statistics are available from FY 1994 through FY 2012. New marine verification program began FY 2013. Beginning in FY 2013, Wind and Wave verification extended out to 5 and 7 days respectively, while the legacy program was limited to verifying Day 1 with errors less than 5 knots are defined as accurate. Since FY 2014, a higher threshold of forecast errors has been used to define correct forecasts whenever higher wind speeds have occurred. Hence, wind speed forecasts with errors less than (7 knots, 10 knots, 15 knots) are accurate forecasts when the observed wind speed equals or exceeds (20 knots, 34 knots, 48 knots) respectively. This measure uses complex skill scores to analyze individual wind speed components.

Legacy statistics are available from FY 1994 through FY 2012. New marine verification program began FY 2013. Beginning in FY 2013, Wind and Wave verification extended out to 5 and 7 days respectively, while the legacy program was limited to verifying Day 1 with errors less than 5 knots are defined as accurate.

Since FY 2014, a higher threshold of forecast errors has been used to define correct forecasts whenever higher wind speeds have occurred. Hence, wind speed forecasts with errors less than (7 knots, 10 knots, 15 knots) are accurate forecasts when the observed wind speed equals or exceeds (20 knots, 34 knots, 48 knots) respectively.

This measure uses complex skill scores to analyze individual wind speed components.

Visibility and cloud ceiling forecasts are critical for aircraft safety and efficient operations. When visibility or cloud ceilings are low, pilots rely on instruments to navigate instead of visual reconnaissance. The Federal Aviation Administration establishes Instrument Flight Rule (IFR) thresholds—visibility less than three statute miles and/or cloud ceilings at, or below, 1000 feet—for safety.

NWS assesses the quality of IFR threshold forecasts in response to these requirements. Fundamental statistical metrics, specifically Probability of Detection (POD) and False Alarm Ratio (FAR), are used to track IFR forecast performance. Probability of Detection (POD), also known as Accuracy, is a ratio that describes the number of times IFR is correctly forecasted compared to the total number of IFR occurrences. FAR is a ratio that describes the number of IFR forecasts when IFR was not observed compared to the total number of forecast attempts. These two metrics must always be used in conjunction, as one can be improved at the expense of the other. Greater accuracy and a minimized FAR result in safer flights and fewer flight delays; conversely, poorer accuracy and an increased FAR result in a greater incidence of unnecessary flight delays.

Ensures that NOAA provides real time (or near real time) availability of critical satellite data and products without gaps to users (NWS and other NOAA line offices, US military and operational partners). On time data and imagery provided increases timeliness and accuracy of public warnings and forecasts of climate and weather events.

Metric calculated as the percent of Climate Prediction Center extended (outlooks out to 14 days) and long range (monthly and seasonal outlooks) temperature and precipitation outlooks exceeding Heidke Skill Score (HSS) of 10 (10% better than a climatological forecast). Due to the scarcity of long range outlooks (six per month), scores are smoothed over a three year period. To better track results, three individual metrics are tracked – 1) All forecasts combined, 2) Temperature only, and 3) Precipitation only.

The annual number of peer reviewed publications is an indicator of productivity and relevance and is tracked using online resources. Peer review is one of the important procedures used to ensure that the quality of published information meets the standards of the scientific and technical community.
* FY 2019 is the first year that we are reporting on both NOAA-authored publications (previously the only type of publication measured) and NOAA-funded publications.

Key activities for the development and launch of weather satellites and products are identified and tracked using a project management system.

Each site within the National Marine Sanctuary System conducts education through formal education, informal education, and outreach for education. Programming includes hands-on activities as well as distance learning. K-12 student participation is tracked in both formal and informal education programs by counting the number of students participating in these programs. Data is collected yearly from each site and headquarters and is summarized system wide. Using these methods we can track the number of K-12 students engaged in formal or informal education and stewardship programs.

Metric calculated as the percent of Climate Prediction Center extended range temperature and precipitation outlooks (outlooks out to 14 days) exceeding Heidke Skill Score (HSS) of 10 (10% better than a climatological forecast). To better track results, three individual metrics are tracked – 1) All forecasts combined, 2) Temperature only, and 3) Precipitation only.

A winter storm warning provides NOAA customers and partners advanced notice of a hazardous winter weather event that endangers life or property, or provides an impediment to commerce. Winter storm warnings are issued for winter weather phenomena like blizzards, ice storms, heavy sleet, and heavy snow. This performance indicator measures the accuracy of winter storm events.

Improving the accuracy and advance warnings of winter storms enables the public to take the necessary steps to prepare for disruptive winter weather conditions.

The public, private sectors, emergency managers, and government institutions at all levels in this country and abroad use NOAA tropical cyclone forecasts to make decisions regarding the protection of life and property. This measure represents the difference between the projected intensity of these storms and the actual intensity in knots (kt) for Atlantic Basin tropical cyclones (i.e., tropical depressions, tropical storms, and hurricanes).

* Annual Hurricane Season begins June 1 and ends November 30. The final values are produced after a verification and validation period.

The measure is validated by computing the average difference (error) for all the 48-hour forecasts occurring during a calendar year. Because tropical cyclones are relatively rare events, this measure can show significant annual volatility. Projecting the long-term trend, and basing out-year goals on that trend, is preferred over making large upward or downward changes to the targets each year.