Realtime Data Map for the Chesapeake Bay Watershed
Leaflet | Tiles © Esri — Esri, DeLorme, NAVTEQ, TomTom, Intermap, iPC, USGS, FAO, NPS, NRCAN, GeoBase, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), and the GIS User Community
How frequently is the data updated?
| Observations/ Overlays | Update frequency | Website pull frequency | |
|---|---|---|---|
| Weather Radar | Iowa Environmental Mesonet generated NEXRAD composite | 5 mins | |
| Tide stations | NOAA Tides and Currents | 6 mins | |
| Buoys | NOAA National Data Buoy Center | 5 mins | |
| Stream gages | Advanced Hydrologic Prediction Service (AHPS) | 15 mins | |
| Weather stations | DEOS: Delaware Environmental Observing System | 5 mins | 5 mins |
| DelDOT: Delaware Department of Transportation Weather Network | 10 mins | ||
| PennDot: Pennsylvania Department of Transportation Weather Network | |||
| PA Turnpike | |||
| PEMN: Penn State University | |||
| PA Dept. of Environmental Protection | 15 mins | ||
| PA Dept. Conservation & Natural Resources | 60 mins | ||
| METAR | 1 mins | ||
| NOAA Watches, warnings, & advisories | - | 2 mins | |
| U.S. climate divisions | Static | ||
| U.S. drought monitor | Thursday at 8:30 a.m. Eastern Time | ||
| Watershed Boundary | Chesapeake Bay Watershed | Static | |
| Hydrologic unit code 4 | |||
| Hydrologic unit code 6 | |||
| Hydrologic unit code 8 | |||
| Hydrologic unit code 10 | |||
| Hydrologic unit code 12 | |||
Developed by Kelsey Ruckert, Matthew Lisk, and Robert Nicholas, Penn State University, 2017-2023.
Stream discharge, active alerts and weather forecasts, buoy observations, and tide station water levels are provided by the National Weather Service, National Data Buoy Center, and NOAA Tides and Currents. Weather observations are provided from the Keystone Mesonet, University of Delaware, and the Aviation Weather Center. The weather radar, drought monitor, and Chesapeake bay watershed extent are provided via the Iowa Environmental Mesonet generated NEXRAD composite, National Drought Mitigation Center, and the USDA. Icon credits: Icon pack by Icons8 and Ionicons.