Live market data
MISO wind forecast
MISO's published wind forecast against actual output, spanning yesterday and the day ahead — the biggest wind fleet of any US market, scored against delivery.
Fetching the latest published forecast…
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MISO's published wind forecast against actual output, spanning yesterday and the day ahead — the biggest wind fleet of any US market, scored against delivery.
How much wind power will MISO get?
MISO wind output peaks at 16,150 MW on Sat, 1 AM, against a low of 1,224 MW — a swing of 14,926 MW across the window. Wind forecast is the heaviest area at 16,150 MW.
Every line above, and who produced it.
What settled — the realized values every forecast here is scored against.
The grid operator's own published forecast for these hours. Source: MISO.
Every settled hour scored against what each forecast said beforehand.
The window peaked at 3,878 MW on Thu, 3 AM; MISO wind forecast called it 4,469 MW — 591 MW high.
Each day of the window on its own.
Every hour of the window, shaded by load.
| 0 | 6 | 12 | 18 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thu, 8/27 |
| Series | Peak (MW) | Peak hour | Low (MW) | Average (MW) |
|---|---|---|---|---|
| Wind forecast | 16,150 | Sat, 1 AM | 1,224 | 7,488 |
| Wind settled (recent) | 3,878 | Thu, 3 AM | 751 | 2,497 |
| Forecast | Avg miss (MW) | Avg miss % | Bias | Hours |
|---|---|---|---|---|
| MISO wind forecast | 289 | 16.3% | +164 | 23 |
The latest published vintage of each forecast, against what settled. Smaller is better on every column. Bias is signed: positive means the forecast ran high.
| Forecast | Produced by | Method | Horizon |
|---|---|---|---|
| Wind forecast | MISO | MISO wind forecast and actual wind output, hourly | Roughly the day ahead, hourly |
MISO publishes a point forecast with no confidence interval. Frontal timing and winter icing are the dominant error sources; a front arriving hours early can move several gigawatts.
MISO publishes an hourly wind forecast alongside actual output, spanning the recent past and roughly the day ahead. This page plots both, so the forecast's track record over the settled hours sits next to its call for the coming ones.
MISO operates about thirty gigawatts of wind — the largest fleet in any US market — concentrated in Iowa, Minnesota, and the Dakotas. On windy nights it is the largest source on the system, and its output swings are what the market's northern congestion and hub spreads move on.
The scorecard below measures the forecast against delivery over overlapping hours. MISO's wind misses cluster around frontal passages and icing events — and a multi-gigawatt evening miss propagates straight into the Minnesota and Indiana hub prices.
curl "https://askthegrid.com/api/v1/grid/radar/curves?iso=MISO&horizon=extended"
Connect your agent to mcp.askthegrid.com and this forecast is a tool call away — the same host Claude and ChatGPT connectors already use.
Roughly thirty gigawatts of capacity — the largest wind fleet in any US market — concentrated in Iowa, Minnesota, and the Dakotas. On strong nights wind is the single largest source on the MISO system.
Good in settled weather, weakest around frontal passages and icing. The scorecard above measures the actual recent record — average miss, bias, and the worst hour — rather than generalizing.
Because it is big enough to displace the marginal gas and coal units across the north of the footprint. An unforecast lull pulls thermal units on at higher prices; a surge pushes prices down and loads the north-south transmission — which is when the hubs price apart.
Plotted window Aug 27, 3:00 AM CDT → Aug 29, 11:00 PM CDT. Reissued through the operating day; the latest vintage is shown.
| Fri, 8/28 |
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| Sat, 8/29 |
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Darkest cells are the tightest hours. The window peaks at 16,150 MW on Sat, 1 AM, local to the market.