How fresh is the data?

StormCrownHD is only as good as its sources. This page shows when each official feed last answered, how current its data is, and runs a live check of every map layer from your browser.

Right now, from your browser

Live layer checks

Each check calls the same API The Eye and The Watch use, and reports what came back.

Checking each data layer…

National alert summary
/api/alerts/summary
Checking…
Radar loop
/api/layers/radar
Checking…
Satellite (GOES-East GeoColor)
/api/layers/satellite?view=east-geocolor
Checking…
SPC Day 1 convective outlook
/api/layers/outlooks?product=spc-day1
Checking…
Tropical cyclones
/api/layers/tropical
Checking…

Recorded by our servers

Feed health

The last successful fetch, the data's own timestamp and any recent error for each upstream feed.

NWS active alerts
Watches, warnings and advisories from api.weather.gov
Live
Last good fetch
Sun, Oct 11, 9:30 AM UTC
Data time
Sun, Oct 11, 9:28 AM UTC
Items
504
Response time
183 ms
NWS 7-day forecasts
Official point forecasts
Recent
Last good fetch
Sun, Oct 11, 7:46 AM UTC
Data time
Sun, Oct 11, 6:22 AM UTC
Items
14
Response time
25 ms
NWS hourly forecasts
Official hour-by-hour forecasts
Recent
Last good fetch
Sun, Oct 11, 7:46 AM UTC
Data time
Sun, Oct 11, 6:22 AM UTC
Items
156
Response time
44 ms
NWS observations
Latest reports from weather stations
Recent
Last good fetch
Sun, Oct 11, 7:46 AM UTC
Data time
Sun, Oct 11, 7:20 AM UTC
Items
1
Response time
66 ms
NWS forecast discussions
Forecasters' Area Forecast Discussions
Recent
Last good fetch
Sun, Oct 11, 7:44 AM UTC
Data time
Sun, Oct 11, 12:59 AM UTC
Items
1
Response time
174 ms
NWS location lookups
Matching a location to its forecast office and grid
Recent
Last good fetch
Sun, Oct 11, 7:46 AM UTC
Radar
MRMS reflectivity mosaic (NCEP, nowCOAST or IEM)
Delayed
Last good fetch
Sun, Oct 11, 7:44 AM UTC
Data time
Sun, Oct 11, 7:40 AM UTC
Items
12
Response time
77 ms
Satellite
GOES-East and GOES-West imagery (NASA GIBS, nowCOAST)
Delayed
Last good fetch
Sun, Oct 11, 6:29 AM UTC
Data time
Sun, Oct 11, 5:40 AM UTC
Items
6
Response time
16 ms
SPC convective outlooks
Storm Prediction Center severe weather risk
Live
Last good fetch
Sun, Oct 11, 7:44 AM UTC
Data time
Sun, Oct 11, 5:50 AM UTC
Items
3
Response time
159 ms
SPC watches
Tornado and severe thunderstorm watches
Delayed
Last good fetch
Sun, Oct 11, 4:27 AM UTC
Data time
Sun, Oct 11, 4:27 AM UTC
Items
0
Response time
15 ms
WPC excessive rainfall outlooks
Weather Prediction Center flash-flood risk
Live
Last good fetch
Sun, Oct 11, 7:44 AM UTC
Data time
Sat, Oct 10, 11:27 PM UTC
Items
6
Response time
218 ms
NHC tropical cyclones
National Hurricane Center storms, cones and tracks
Live
Last good fetch
Sun, Oct 11, 6:29 AM UTC
Data time
Sun, Oct 11, 6:00 AM UTC
Items
3
Response time
389 ms
River gauges
National Water Prediction Service flood stages
Recent
Last good fetch
Sun, Oct 11, 7:44 AM UTC
Data time
Sun, Oct 11, 7:20 AM UTC
Items
136
Response time
1.0 s
Model guidance
Open-Meteo multi-model data for Compare
Recent
Last good fetch
Sun, Oct 11, 6:42 AM UTC
Data time
Sun, Oct 11, 5:00 AM UTC
Items
8
Response time
1.1 s
Place search
Photon and US Census geocoding
Recent
Last good fetch
Sun, Oct 11, 7:46 AM UTC
Response time
16 ms
Driving routes
OSRM routing for route alerts
Recent
Last good fetch
Sun, Oct 11, 6:37 AM UTC
Items
113
Response time
863 ms

Reading the badges

What live, recent, delayed and unavailable mean

Live
The newest data is within this feed's normal update cycle, for example radar within 10 minutes or alerts within 5.
Recent
A little older than live but still within the range this feed usually runs. Fine to use.
Delayed
Later than this feed normally updates. We still show the latest data with its age; for anything time-critical, check the official source directly.
Unavailable
We could not reach the feed. The rest of StormCrownHD keeps working, and every layer links to its official source.

Thresholds, measured from each product's own issue or observation time

Feed	Live within	Recent within
NWS alerts