GFS vs ECMWF U.S. demand-hub forecast (15-day) - Run #4114
Reporting Date: 2026-10-13T00:00:00Z
Completed
Run Details
- State
- Completed
- Started At
- October 13, 2026 at 12:25 AM
- Completed At
- October 13, 2026 at 12:25 AM
- Duration
- less than a minute
Data Preview
{
"models": {
"gfs": "gfs_seamless",
"ecmwf": "ecmwf_ifs025"
},
"source": "Open-Meteo",
"locations": [
{
"id": "chicago",
"lat": 41.85,
"lon": -87.65,
"label": "Midwest (Chicago)",
"divergence": {
"mean_abs_hdd_diff_by_day": 3.4557
},
"daily_series": [
{
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"hdd_gfs": 0.0,
"cdd_ecmwf": 9.8958,
"hdd_ecmwf": 0.0,
"valid_date": "2026-10-13",
"mean_temp_f_gfs": 72.3375,
"mean_temp_f_ecmwf": 74.8958
},
{
"cdd_gfs": 0.0,
"hdd_gfs": 2.9042,
"cdd_ecmwf": 1.7375,
"hdd_ecmwf": 0.0,
"valid_date": "2026-10-14",
"mean_temp_f_gfs": 62.0958,
"mean_temp_f_ecmwf": 66.7375
},
{
"cdd_gfs": 0.0,
"hdd_gfs": 6.225,
"cdd_ecmwf": 0.0,
"hdd_ecmwf": 5.6542,
"valid_date": "2026-10-15",
"mean_temp_f_gfs": 58.775,
"mean_temp_f_ecmwf": 59.3458
},
{
"cdd_gfs": 0.0,
"hdd_gfs": 11.8,
"cdd_ecmwf": 0.0,
"hdd_ecmwf": 9.7875,
"valid_date": "2026-10-16",
"mean_temp_f_gfs": 53.2,
"mean_temp_f_ecmwf": 55.2125
},
{
"cdd_gfs": 0.0,
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"cdd_ecmwf": 0.0,
"hdd_ecmwf": 16.8042,
"valid_date": "2026-10-17",
"mean_temp_f_gfs": 47.8167,
"mean_temp_f_ecmwf": 48.1958
},
{
"cdd_gfs": 0.0,
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"cdd_ecmwf": 0.0,
"hdd_ecmwf": 13.2333,
"valid_date": "2026-10-18",
"mean_temp_f_gfs": 51.8833,
"mean_temp_f_ecmwf": 51.7667
},
{
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"cdd_ecmwf": 0.0,
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"valid_date": "2026-10-19",
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"mean_temp_f_ecmwf": 56.1875
},
{
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"cdd_ecmwf": 0.0,
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"valid_date": "2026-10-20",
"mean_temp_f_gfs": 57.0542,
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},
{
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"cdd_ecmwf": 0.0,
"hdd_ecmwf": 9.1,
"valid_date": "2026-10-21",
"mean_temp_f_gfs": 61.2917,
"mean_temp_f_ecmwf": 55.9
},
{
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"valid_date": "2026-10-22",
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"mean_temp_f_ecmwf": 57.1542
},
{
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"valid_date": "2026-10-23",
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"mean_temp_f_ecmwf": 60.6458
},
{
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"valid_date": "2026-10-24",
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},
{
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},
{
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"valid_date": "2026-10-26",
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"mean_temp_f_ecmwf": 45.0417
},
{
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"cdd_ecmwf": 0.0,
"hdd_ecmwf": 23.3267,
"valid_date": "2026-10-27",
"mean_temp_f_gfs": 52.9708,
"mean_temp_f_ecmwf": 41.6733
}
],
"demand_weight": 0.35,
"noaa_region_hint": "midwest",
"cumulative_cdd_gfs": 10.8625,
"cumulative_hdd_gfs": 117.1,
"cumulative_cdd_ecmwf": 11.6333,
"cumulative_hdd_ecmwf": 143.56
},
{
"id": "nyc",
"lat": 40.71,
"lon": -74.0,
"label": "East (New York City)",
"divergence": {
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},
"daily_series": [
{
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"cdd_ecmwf": 0.0,
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"valid_date": "2026-10-13",
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},
{
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},
{
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{
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{
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},
{
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"valid_date": "2026-10-18",
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"mean_temp_f_ecmwf": 47.7042
},
{
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},
{
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},
{
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{
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"mean_temp_f_ecmwf": 47.4625
},
{
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{
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},
{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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},
{
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{
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{
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}
],
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"cumulative_cdd_ecmwf": 149.2001,
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},
{
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"divergence": {
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},
"daily_series": [
{
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},
{
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},
{
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},
{
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},
{
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},
{
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Feed Information
Feed Type
GfsEcmwfUsDemandHubForecastFeed