NOAA - Severe weather warnings for flash floods: Lead time (minutes)
performance.commerce.gov | Last Updated 28 Mar 2024For each reported flash flood event, the flash flood warning lead-time is the difference in minutes between the issuance of a flash flood warning and the onset of a geographically corresponding flash flood event. The lead times for all flash flood events, within the United States and territories served by the National Weather Service, are averaged to calculate the national average flash flood warning lead-time metric for a given fiscal year. This average includes all warned events with zero lead times and all unwarned events. Historically, flash flood warnings were issued and verified on a countywide basis. Starting in FY 2010, the storm-based warnings were implemented with verification based solely for the areas impacted by the warning and event.
This dataset has the following 6 columns:
| Column Name | API Column Name | Data Type | Sample Values |
|---|---|---|---|
| Performance Indicator | performance_indicator | text | Severe weather warnings for flash floods: Lead time (minutes) view top 100 |
| Fiscal Year | fiscal_year | calendar_date | 2014-09-30T00:00:00.000 2017-09-30T00:00:00.000 2016-09-30T00:00:00.000 2006-09-30T00:00:00.000 2005-09-30T00:00:00.000 view top 100 |
| Actual | actual | number | 72 66 73 62 54 view top 100 |
| Target | target | number | 65 48 63 38 61 view top 100 |
| Proximity | proximity | number | 0.78 1.18033 1.34694 1.89474 1.01538 view top 100 |
| Status | status | text | Exceeded Met Not Met view top 100 |