1km Mesh Power Outage Risk Forecast
GET
/api/v1/pwfl
Forecast Japan
Receive power outage risk forecasts for specified latitude and longitude coordinates, calculated with 1km grid resolution. The specified latitude and longitude must be within Japan. There are also data available over the sea, but they are not related to power outages, so please refrain from using them.
The power outage risk forecast includes hourly information for approximately 3 days.
Power Outage Risk Codes
| Code | Description |
|---|---|
| 1 | No power outage risk |
| 2 | Possible power outage |
| 3 | Power outage caution |
| 4 | Power outage alert |
Data Coverage
Land areas of Japan
Parameters
Query Parameters
lat*
Latitude
Typenumber
RequiredExample
35.651377format
floatlon*
Longitude
Typenumber
RequiredExample
140.041161format
floatResponses
1km grid-based power outage risk forecast data
application/json
JSON
{
"requestId": "3909775c-5d0f-4e96-8e4f-7d3f263e2056",
"wxdata": [
{
"lat": 35.651377,
"lon": 140.041161,
"data": [
{
"date": "2025-04-09T10:00:00+09:00",
"pwflidx": 0
}
]
}
]
}