{"enso":{"alert_status":"El Ni\u00f1o Advisory","as_of":"2026-09-10","discussion_url":"https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/ensodisc.shtml","oni":[{"anomaly":-0.87,"season":"ASO","year":2022},{"anomaly":-0.89,"season":"SON","year":2022},{"anomaly":-0.82,"season":"OND","year":2022},{"anomaly":-0.7,"season":"NDJ","year":2022},{"anomaly":-0.55,"season":"DJF","year":2023},{"anomaly":-0.33,"season":"JFM","year":2023},{"anomaly":-0.11,"season":"FMA","year":2023},{"anomaly":0.19,"season":"MAM","year":2023},{"anomaly":0.46,"season":"AMJ","year":2023},{"anomaly":0.73,"season":"MJJ","year":2023},{"anomaly":1.0,"season":"JJA","year":2023},{"anomaly":1.25,"season":"JAS","year":2023},{"anomaly":1.5,"season":"ASO","year":2023},{"anomaly":1.74,"season":"SON","year":2023},{"anomaly":1.9,"season":"OND","year":2023},{"anomaly":1.99,"season":"NDJ","year":2023},{"anomaly":1.84,"season":"DJF","year":2024},{"anomaly":1.53,"season":"JFM","year":2024},{"anomaly":1.18,"season":"FMA","year":2024},{"anomaly":0.77,"season":"MAM","year":2024},{"anomaly":0.43,"season":"AMJ","year":2024},{"anomaly":0.18,"season":"MJJ","year":2024},{"anomaly":0.06,"season":"JJA","year":2024},{"anomaly":-0.04,"season":"JAS","year":2024},{"anomaly":-0.12,"season":"ASO","year":2024},{"anomaly":-0.19,"season":"SON","year":2024},{"anomaly":-0.29,"season":"OND","year":2024},{"anomaly":-0.43,"season":"NDJ","year":2024},{"anomaly":-0.46,"season":"DJF","year":2025},{"anomaly":-0.22,"season":"JFM","year":2025},{"anomaly":-0.08,"season":"FMA","year":2025},{"anomaly":0.02,"season":"MAM","year":2025},{"anomaly":-0.04,"season":"AMJ","year":2025},{"anomaly":-0.02,"season":"MJJ","year":2025},{"anomaly":-0.11,"season":"JJA","year":2025},{"anomaly":-0.26,"season":"JAS","year":2025},{"anomaly":-0.43,"season":"ASO","year":2025},{"anomaly":-0.57,"season":"SON","year":2025},{"anomaly":-0.61,"season":"OND","year":2025},{"anomaly":-0.6,"season":"NDJ","year":2025},{"anomaly":-0.39,"season":"DJF","year":2026},{"anomaly":-0.21,"season":"JFM","year":2026},{"anomaly":0.11,"season":"FMA","year":2026},{"anomaly":0.46,"season":"MAM","year":2026},{"anomaly":0.95,"season":"AMJ","year":2026},{"anomaly":1.39,"season":"MJJ","year":2026},{"anomaly":1.8,"season":"JJA","year":2026},{"anomaly":2.16,"season":"JAS","year":2026}],"oni_latest":2.16,"oni_season":"JAS 2026","prob_el_nino":null,"prob_la_nina":null,"prob_neutral":null,"synopsis":"El Ni\u00f1o is strengthening, with a greater than 90% chance of a very strong event during the Northern Hemisphere fall and winter 2026-27.","weekly_nino34":[{"anom":-0.5,"nino3_anom":-0.3,"sst":26.2,"week_of":"2025-10-01"},{"anom":-0.3,"nino3_anom":-0.1,"sst":26.4,"week_of":"2025-10-08"},{"anom":-0.6,"nino3_anom":-0.5,"sst":26.1,"week_of":"2025-10-15"},{"anom":-0.6,"nino3_anom":-0.5,"sst":26.2,"week_of":"2025-10-22"},{"anom":-0.6,"nino3_anom":-0.6,"sst":26.1,"week_of":"2025-10-29"},{"anom":-0.7,"nino3_anom":-0.6,"sst":26.1,"week_of":"2025-11-05"},{"anom":-0.8,"nino3_anom":-0.8,"sst":26.0,"week_of":"2025-11-12"},{"anom":-0.8,"nino3_anom":-0.7,"sst":25.9,"week_of":"2025-11-19"},{"anom":-0.6,"nino3_anom":-0.5,"sst":26.1,"week_of":"2025-11-26"},{"anom":-0.5,"nino3_anom":-0.5,"sst":26.2,"week_of":"2025-12-03"},{"anom":-0.7,"nino3_anom":-0.8,"sst":25.9,"week_of":"2025-12-10"},{"anom":-0.7,"nino3_anom":-0.9,"sst":25.9,"week_of":"2025-12-17"},{"anom":-0.7,"nino3_anom":-0.7,"sst":25.9,"week_of":"2025-12-24"},{"anom":-0.6,"nino3_anom":-0.9,"sst":25.9,"week_of":"2025-12-31"},{"anom":-0.7,"nino3_anom":-0.9,"sst":25.8,"week_of":"2026-01-07"},{"anom":-0.6,"nino3_anom":-0.4,"sst":25.9,"week_of":"2026-01-14"},{"anom":-0.4,"nino3_anom":-0.2,"sst":26.0,"week_of":"2026-01-21"},{"anom":-0.5,"nino3_anom":-0.2,"sst":26.0,"week_of":"2026-01-28"},{"anom":-0.4,"nino3_anom":-0.1,"sst":26.1,"week_of":"2026-02-04"},{"anom":-0.2,"nino3_anom":0.0,"sst":26.4,"week_of":"2026-02-11"},{"anom":-0.1,"nino3_anom":0.1,"sst":26.6,"week_of":"2026-02-18"},{"anom":-0.1,"nino3_anom":0.0,"sst":26.7,"week_of":"2026-02-25"},{"anom":-0.1,"nino3_anom":0.2,"sst":26.8,"week_of":"2026-03-04"},{"anom":-0.1,"nino3_anom":0.4,"sst":27.0,"week_of":"2026-03-11"},{"anom":0.0,"nino3_anom":0.3,"sst":27.3,"week_of":"2026-03-18"},{"anom":0.1,"nino3_anom":0.1,"sst":27.5,"week_of":"2026-03-25"},{"anom":0.1,"nino3_anom":0.1,"sst":27.6,"week_of":"2026-04-01"},{"anom":0.2,"nino3_anom":0.3,"sst":27.9,"week_of":"2026-04-08"},{"anom":0.5,"nino3_anom":0.6,"sst":28.3,"week_of":"2026-04-15"},{"anom":0.8,"nino3_anom":0.9,"sst":28.6,"week_of":"2026-04-22"},{"anom":0.9,"nino3_anom":1.0,"sst":28.8,"week_of":"2026-04-29"},{"anom":0.8,"nino3_anom":1.0,"sst":28.7,"week_of":"2026-05-06"},{"anom":0.9,"nino3_anom":1.1,"sst":28.8,"week_of":"2026-05-13"},{"anom":0.9,"nino3_anom":1.2,"sst":28.8,"week_of":"2026-05-20"},{"anom":1.0,"nino3_anom":1.3,"sst":28.8,"week_of":"2026-05-27"},{"anom":1.3,"nino3_anom":1.5,"sst":29.1,"week_of":"2026-06-03"},{"anom":1.5,"nino3_anom":1.6,"sst":29.2,"week_of":"2026-06-10"},{"anom":1.7,"nino3_anom":1.9,"sst":29.4,"week_of":"2026-06-17"},{"anom":1.8,"nino3_anom":2.0,"sst":29.3,"week_of":"2026-06-24"},{"anom":1.7,"nino3_anom":2.0,"sst":29.2,"week_of":"2026-07-01"},{"anom":2.0,"nino3_anom":2.2,"sst":29.3,"week_of":"2026-07-08"},{"anom":2.1,"nino3_anom":2.3,"sst":29.4,"week_of":"2026-07-15"},{"anom":2.2,"nino3_anom":2.5,"sst":29.4,"week_of":"2026-07-22"},{"anom":2.4,"nino3_anom":2.8,"sst":29.4,"week_of":"2026-07-29"},{"anom":2.5,"nino3_anom":3.0,"sst":29.5,"week_of":"2026-08-05"},{"anom":2.6,"nino3_anom":3.2,"sst":29.4,"week_of":"2026-08-12"},{"anom":2.6,"nino3_anom":3.2,"sst":29.4,"week_of":"2026-08-19"},{"anom":2.6,"nino3_anom":3.3,"sst":29.4,"week_of":"2026-08-26"},{"anom":2.8,"nino3_anom":3.5,"sst":29.5,"week_of":"2026-09-02"},{"anom":2.9,"nino3_anom":3.7,"sst":29.6,"week_of":"2026-09-09"},{"anom":3.0,"nino3_anom":3.8,"sst":29.6,"week_of":"2026-09-16"},{"anom":3.1,"nino3_anom":3.9,"sst":29.7,"week_of":"2026-09-23"}]},"ladder":[{"by_region":{"Central Coast":{"alternatives":[{"area_fraction":0.313,"category":"Above","probability":33.0}],"area_fraction":0.686,"category":"Above","probability":40.0},"Colorado River":{"alternatives":[{"area_fraction":0.366,"category":"Above","probability":33.0}],"area_fraction":0.633,"category":"Above","probability":40.0},"North Coast":{"alternatives":[{"area_fraction":0.435,"category":"Below","probability":33.0},{"area_fraction":0.006,"category":"Above","probability":33.0}],"area_fraction":0.557,"category":"Normal","probability":36.0},"North Lahontan":{"alternatives":[{"area_fraction":0.134,"category":"Above","probability":33.0}],"area_fraction":0.866,"category":"Normal","probability":36.0},"Sacramento River":{"alternatives":[{"area_fraction":0.029,"category":"Above","probability":33.0}],"area_fraction":0.971,"category":"Normal","probability":36.0},"San Francisco Bay":{"alternatives":[{"area_fraction":0.052,"category":"Normal","probability":36.0}],"area_fraction":0.849,"category":"Above","probability":33.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.05,"category":"Normal","probability":36.0}],"area_fraction":0.95,"category":"Above","probability":33.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"Above","probability":40.0},"South Lahontan":{"alternatives":[{"area_fraction":0.182,"category":"Above","probability":40.0}],"area_fraction":0.818,"category":"Above","probability":33.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.336,"category":"Above","probability":40.0}],"area_fraction":0.664,"category":"Above","probability":33.0}},"issued_on":"2026-10-03","label":"6-10 day","lead_file":"610prcp_latest.shp","product":"610prcp","valid_end":"2026-10-13","valid_label":"2026-10-09 to 2026-10-13","valid_start":"2026-10-09"},{"by_region":{"Central Coast":{"alternatives":[{"area_fraction":0.057,"category":"Normal","probability":36.0}],"area_fraction":0.942,"category":"Above","probability":33.0},"Colorado River":{"alternatives":[{"area_fraction":0.002,"category":"Above","probability":33.0}],"area_fraction":0.998,"category":"Above","probability":40.0},"North Coast":{"alternatives":[{"area_fraction":0.074,"category":"Normal","probability":36.0}],"area_fraction":0.924,"category":"Below","probability":33.0},"North Lahontan":{"alternatives":[{"area_fraction":0.482,"category":"Normal","probability":36.0}],"area_fraction":0.518,"category":"Below","probability":33.0},"Sacramento River":{"alternatives":[{"area_fraction":0.4,"category":"Normal","probability":36.0}],"area_fraction":0.6,"category":"Below","probability":33.0},"San Francisco Bay":{"alternatives":[{"area_fraction":0.001,"category":"Above","probability":33.0}],"area_fraction":0.9,"category":"Normal","probability":36.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.294,"category":"Above","probability":33.0}],"area_fraction":0.706,"category":"Normal","probability":36.0},"South Coast":{"alternatives":[{"area_fraction":0.429,"category":"Above","probability":33.0}],"area_fraction":0.568,"category":"Above","probability":40.0},"South Lahontan":{"alternatives":[{"area_fraction":0.132,"category":"Above","probability":40.0},{"area_fraction":0.039,"category":"Normal","probability":36.0}],"area_fraction":0.829,"category":"Above","probability":33.0},"Tulare Lake":{"alternatives":[],"area_fraction":1.0,"category":"Above","probability":33.0}},"issued_on":"2026-10-03","label":"8-14 day","lead_file":"814prcp_latest.shp","product":"814prcp","valid_end":"2026-10-17","valid_label":"2026-10-11 to 2026-10-17","valid_start":"2026-10-11"},{"by_region":{"Central Coast":{"alternatives":[{"area_fraction":0.334,"category":"Above","probability":33.0}],"area_fraction":0.665,"category":"EC","probability":33.0},"Colorado River":{"alternatives":[{"area_fraction":0.126,"category":"Above","probability":33.0}],"area_fraction":0.874,"category":"Above","probability":40.0},"North Coast":{"alternatives":[],"area_fraction":0.998,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"Sacramento River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"EC","probability":33.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.03,"category":"Above","probability":33.0}],"area_fraction":0.97,"category":"EC","probability":33.0},"South Coast":{"alternatives":[{"area_fraction":0.333,"category":"Above","probability":40.0}],"area_fraction":0.664,"category":"Above","probability":33.0},"South Lahontan":{"alternatives":[{"area_fraction":0.042,"category":"EC","probability":33.0}],"area_fraction":0.958,"category":"Above","probability":33.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.236,"category":"EC","probability":33.0}],"area_fraction":0.764,"category":"Above","probability":33.0}},"issued_on":"2026-10-02","label":"Week 3-4","lead_file":"wk34prcp_latest.shp","product":"wk34prcp","valid_end":"2026-10-30","valid_label":"2026-10-17 to 2026-10-30","valid_start":"2026-10-17"},{"by_region":{"Central Coast":{"alternatives":[{"area_fraction":0.131,"category":"Below","probability":33.0}],"area_fraction":0.868,"category":"EC","probability":33.0},"Colorado River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"North Coast":{"alternatives":[{"area_fraction":0.085,"category":"Below","probability":40.0},{"area_fraction":0.003,"category":"EC","probability":33.0}],"area_fraction":0.91,"category":"Below","probability":33.0},"North Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"Below","probability":40.0},"Sacramento River":{"alternatives":[{"area_fraction":0.478,"category":"Below","probability":40.0}],"area_fraction":0.522,"category":"Below","probability":33.0},"San Francisco Bay":{"alternatives":[{"area_fraction":0.017,"category":"EC","probability":33.0}],"area_fraction":0.885,"category":"Below","probability":33.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.303,"category":"Below","probability":40.0}],"area_fraction":0.697,"category":"Below","probability":33.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"EC","probability":33.0},"South Lahontan":{"alternatives":[{"area_fraction":0.422,"category":"Below","probability":33.0},{"area_fraction":0.114,"category":"Below","probability":40.0}],"area_fraction":0.464,"category":"EC","probability":33.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.265,"category":"EC","probability":33.0}],"area_fraction":0.735,"category":"Below","probability":33.0}},"issued_on":"2026-09-30","label":"Oct 2026","lead_file":"lead15_Oct_prcp.shp","product":"monthupd_prcp","valid_end":"2026-10-31","valid_label":"Oct 2026","valid_start":"2026-10-01"},{"by_region":{"Central Coast":{"alternatives":[{"area_fraction":0.098,"category":"EC","probability":33.0}],"area_fraction":0.901,"category":"Above","probability":33.0},"Colorado River":{"alternatives":[],"area_fraction":1.0,"category":"Above","probability":33.0},"North Coast":{"alternatives":[],"area_fraction":0.998,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"Sacramento River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"EC","probability":33.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.201,"category":"Above","probability":33.0}],"area_fraction":0.799,"category":"EC","probability":33.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"Above","probability":33.0},"South Lahontan":{"alternatives":[{"area_fraction":0.187,"category":"EC","probability":33.0}],"area_fraction":0.813,"category":"Above","probability":33.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.0,"category":"EC","probability":33.0}],"area_fraction":1.0,"category":"Above","probability":33.0}},"issued_on":"2026-09-17","label":"OND 2026","lead_file":"lead1_OND_prcp.shp","product":"seasprcp","valid_end":"2026-12-31","valid_label":"OND 2026","valid_start":"2026-10-01"},{"by_region":{"Central Coast":{"alternatives":[],"area_fraction":0.999,"category":"Above","probability":33.0},"Colorado River":{"alternatives":[{"area_fraction":0.268,"category":"Above","probability":40.0},{"area_fraction":0.082,"category":"EC","probability":33.0}],"area_fraction":0.65,"category":"Above","probability":33.0},"North Coast":{"alternatives":[{"area_fraction":0.018,"category":"Above","probability":33.0}],"area_fraction":0.98,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"Sacramento River":{"alternatives":[{"area_fraction":0.012,"category":"Above","probability":33.0}],"area_fraction":0.988,"category":"EC","probability":33.0},"San Francisco Bay":{"alternatives":[{"area_fraction":0.034,"category":"EC","probability":33.0}],"area_fraction":0.867,"category":"Above","probability":33.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.428,"category":"Above","probability":33.0}],"area_fraction":0.572,"category":"EC","probability":33.0},"South Coast":{"alternatives":[{"area_fraction":0.317,"category":"Above","probability":40.0}],"area_fraction":0.68,"category":"Above","probability":33.0},"South Lahontan":{"alternatives":[{"area_fraction":0.342,"category":"Above","probability":33.0}],"area_fraction":0.658,"category":"EC","probability":33.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.154,"category":"EC","probability":33.0}],"area_fraction":0.846,"category":"Above","probability":33.0}},"issued_on":"2026-09-17","label":"NDJ 2026-2027","lead_file":"lead2_NDJ_prcp.shp","product":"seasprcp","valid_end":"2027-01-31","valid_label":"NDJ 2026-2027","valid_start":"2026-11-01"},{"by_region":{"Central Coast":{"alternatives":[{"area_fraction":0.159,"category":"Above","probability":40.0}],"area_fraction":0.839,"category":"Above","probability":50.0},"Colorado River":{"alternatives":[{"area_fraction":0.242,"category":"Above","probability":40.0}],"area_fraction":0.758,"category":"Above","probability":50.0},"North Coast":{"alternatives":[{"area_fraction":0.1,"category":"Above","probability":40.0}],"area_fraction":0.898,"category":"Above","probability":33.0},"North Lahontan":{"alternatives":[{"area_fraction":0.051,"category":"Above","probability":40.0},{"area_fraction":0.0,"category":"EC","probability":33.0}],"area_fraction":0.949,"category":"Above","probability":33.0},"Sacramento River":{"alternatives":[{"area_fraction":0.214,"category":"Above","probability":40.0}],"area_fraction":0.786,"category":"Above","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"Above","probability":40.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.004,"category":"Above","probability":33.0},{"area_fraction":0.001,"category":"Above","probability":50.0}],"area_fraction":0.995,"category":"Above","probability":40.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"Above","probability":50.0},"South Lahontan":{"alternatives":[{"area_fraction":0.227,"category":"Above","probability":50.0},{"area_fraction":0.061,"category":"Above","probability":33.0}],"area_fraction":0.712,"category":"Above","probability":40.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.418,"category":"Above","probability":40.0}],"area_fraction":0.582,"category":"Above","probability":50.0}},"issued_on":"2026-09-17","label":"DJF 2026-2027","lead_file":"lead3_DJF_prcp.shp","product":"seasprcp","valid_end":"2027-02-28","valid_label":"DJF 2026-2027","valid_start":"2026-12-01"},{"by_region":{"Central Coast":{"alternatives":[],"area_fraction":0.999,"category":"Above","probability":50.0},"Colorado River":{"alternatives":[{"area_fraction":0.186,"category":"Above","probability":40.0}],"area_fraction":0.813,"category":"Above","probability":50.0},"North Coast":{"alternatives":[{"area_fraction":0.105,"category":"Above","probability":33.0},{"area_fraction":0.077,"category":"Above","probability":50.0}],"area_fraction":0.816,"category":"Above","probability":40.0},"North Lahontan":{"alternatives":[{"area_fraction":0.066,"category":"Above","probability":33.0}],"area_fraction":0.934,"category":"Above","probability":40.0},"Sacramento River":{"alternatives":[{"area_fraction":0.065,"category":"Above","probability":50.0},{"area_fraction":0.018,"category":"Above","probability":33.0}],"area_fraction":0.917,"category":"Above","probability":40.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"Above","probability":50.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.437,"category":"Above","probability":50.0}],"area_fraction":0.563,"category":"Above","probability":40.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"Above","probability":50.0},"South Lahontan":{"alternatives":[{"area_fraction":0.273,"category":"Above","probability":50.0}],"area_fraction":0.727,"category":"Above","probability":40.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.204,"category":"Above","probability":40.0}],"area_fraction":0.796,"category":"Above","probability":50.0}},"issued_on":"2026-09-17","label":"JFM 2027","lead_file":"lead4_JFM_prcp.shp","product":"seasprcp","valid_end":"2027-03-31","valid_label":"JFM 2027","valid_start":"2027-01-01"},{"by_region":{"Central Coast":{"alternatives":[],"area_fraction":0.999,"category":"Above","probability":50.0},"Colorado River":{"alternatives":[{"area_fraction":0.235,"category":"Above","probability":40.0}],"area_fraction":0.765,"category":"Above","probability":50.0},"North Coast":{"alternatives":[{"area_fraction":0.198,"category":"Above","probability":40.0}],"area_fraction":0.8,"category":"Above","probability":33.0},"North Lahontan":{"alternatives":[{"area_fraction":0.366,"category":"Above","probability":40.0}],"area_fraction":0.634,"category":"Above","probability":33.0},"Sacramento River":{"alternatives":[{"area_fraction":0.496,"category":"Above","probability":40.0}],"area_fraction":0.504,"category":"Above","probability":33.0},"San Francisco Bay":{"alternatives":[{"area_fraction":0.433,"category":"Above","probability":40.0}],"area_fraction":0.468,"category":"Above","probability":50.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.231,"category":"Above","probability":50.0}],"area_fraction":0.769,"category":"Above","probability":40.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"Above","probability":50.0},"South Lahontan":{"alternatives":[{"area_fraction":0.266,"category":"Above","probability":50.0}],"area_fraction":0.734,"category":"Above","probability":40.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.252,"category":"Above","probability":40.0}],"area_fraction":0.748,"category":"Above","probability":50.0}},"issued_on":"2026-09-17","label":"FMA 2027","lead_file":"lead5_FMA_prcp.shp","product":"seasprcp","valid_end":"2027-04-30","valid_label":"FMA 2027","valid_start":"2027-02-01"},{"by_region":{"Central Coast":{"alternatives":[{"area_fraction":0.29,"category":"Above","probability":40.0}],"area_fraction":0.709,"category":"Above","probability":33.0},"Colorado River":{"alternatives":[{"area_fraction":0.174,"category":"Above","probability":33.0}],"area_fraction":0.826,"category":"Above","probability":40.0},"North Coast":{"alternatives":[{"area_fraction":0.262,"category":"Above","probability":33.0}],"area_fraction":0.737,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[{"area_fraction":0.36,"category":"Above","probability":33.0}],"area_fraction":0.64,"category":"EC","probability":33.0},"Sacramento River":{"alternatives":[{"area_fraction":0.467,"category":"EC","probability":33.0}],"area_fraction":0.533,"category":"Above","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"Above","probability":33.0},"San Joaquin River":{"alternatives":[],"area_fraction":1.0,"category":"Above","probability":33.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"Above","probability":40.0},"South Lahontan":{"alternatives":[{"area_fraction":0.191,"category":"Above","probability":40.0}],"area_fraction":0.809,"category":"Above","probability":33.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.084,"category":"Above","probability":40.0}],"area_fraction":0.916,"category":"Above","probability":33.0}},"issued_on":"2026-09-17","label":"MAM 2027","lead_file":"lead6_MAM_prcp.shp","product":"seasprcp","valid_end":"2027-05-31","valid_label":"MAM 2027","valid_start":"2027-03-01"},{"by_region":{"Central Coast":{"alternatives":[{"area_fraction":0.448,"category":"Above","probability":33.0}],"area_fraction":0.551,"category":"EC","probability":33.0},"Colorado River":{"alternatives":[{"area_fraction":0.04,"category":"EC","probability":33.0}],"area_fraction":0.96,"category":"Above","probability":33.0},"North Coast":{"alternatives":[{"area_fraction":0.189,"category":"Below","probability":33.0}],"area_fraction":0.81,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[{"area_fraction":0.406,"category":"EC","probability":33.0}],"area_fraction":0.594,"category":"Below","probability":33.0},"Sacramento River":{"alternatives":[{"area_fraction":0.214,"category":"Below","probability":33.0}],"area_fraction":0.786,"category":"EC","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"EC","probability":33.0},"San Joaquin River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"Above","probability":33.0},"South Lahontan":{"alternatives":[{"area_fraction":0.296,"category":"Above","probability":33.0}],"area_fraction":0.704,"category":"EC","probability":33.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.212,"category":"Above","probability":33.0}],"area_fraction":0.788,"category":"EC","probability":33.0}},"issued_on":"2026-09-17","label":"AMJ 2027","lead_file":"lead7_AMJ_prcp.shp","product":"seasprcp","valid_end":"2027-06-30","valid_label":"AMJ 2027","valid_start":"2027-04-01"},{"by_region":{"Central Coast":{"alternatives":[],"area_fraction":0.999,"category":"EC","probability":33.0},"Colorado River":{"alternatives":[{"area_fraction":0.02,"category":"Below","probability":33.0}],"area_fraction":0.979,"category":"EC","probability":33.0},"North Coast":{"alternatives":[{"area_fraction":0.454,"category":"Below","probability":33.0}],"area_fraction":0.544,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"Below","probability":33.0},"Sacramento River":{"alternatives":[{"area_fraction":0.066,"category":"EC","probability":33.0}],"area_fraction":0.934,"category":"Below","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"EC","probability":33.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.177,"category":"EC","probability":33.0}],"area_fraction":0.823,"category":"Below","probability":33.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"EC","probability":33.0},"South Lahontan":{"alternatives":[{"area_fraction":0.338,"category":"EC","probability":33.0}],"area_fraction":0.662,"category":"Below","probability":33.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.416,"category":"Below","probability":33.0}],"area_fraction":0.584,"category":"EC","probability":33.0}},"issued_on":"2026-09-17","label":"MJJ 2027","lead_file":"lead8_MJJ_prcp.shp","product":"seasprcp","valid_end":"2027-07-31","valid_label":"MJJ 2027","valid_start":"2027-05-01"},{"by_region":{"Central Coast":{"alternatives":[],"area_fraction":0.999,"category":"EC","probability":33.0},"Colorado River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"North Coast":{"alternatives":[{"area_fraction":0.471,"category":"Below","probability":33.0}],"area_fraction":0.527,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"Below","probability":33.0},"Sacramento River":{"alternatives":[{"area_fraction":0.097,"category":"EC","probability":33.0}],"area_fraction":0.903,"category":"Below","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"EC","probability":33.0},"San Joaquin River":{"alternatives":[{"area_fraction":0.381,"category":"EC","probability":33.0}],"area_fraction":0.619,"category":"Below","probability":33.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"EC","probability":33.0},"South Lahontan":{"alternatives":[{"area_fraction":0.237,"category":"Below","probability":33.0}],"area_fraction":0.763,"category":"EC","probability":33.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.075,"category":"Below","probability":33.0}],"area_fraction":0.925,"category":"EC","probability":33.0}},"issued_on":"2026-09-17","label":"JJA 2027","lead_file":"lead9_JJA_prcp.shp","product":"seasprcp","valid_end":"2027-08-31","valid_label":"JJA 2027","valid_start":"2027-06-01"},{"by_region":{"Central Coast":{"alternatives":[],"area_fraction":0.999,"category":"EC","probability":33.0},"Colorado River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"North Coast":{"alternatives":[{"area_fraction":0.117,"category":"Below","probability":33.0}],"area_fraction":0.881,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[{"area_fraction":0.37,"category":"EC","probability":33.0}],"area_fraction":0.63,"category":"Below","probability":33.0},"Sacramento River":{"alternatives":[{"area_fraction":0.204,"category":"Below","probability":33.0}],"area_fraction":0.796,"category":"EC","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"EC","probability":33.0},"San Joaquin River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"EC","probability":33.0},"South Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"Tulare Lake":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0}},"issued_on":"2026-09-17","label":"JAS 2027","lead_file":"lead10_JAS_prcp.shp","product":"seasprcp","valid_end":"2027-09-30","valid_label":"JAS 2027","valid_start":"2027-07-01"},{"by_region":{"Central Coast":{"alternatives":[],"area_fraction":0.999,"category":"EC","probability":33.0},"Colorado River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"North Coast":{"alternatives":[],"area_fraction":0.998,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"Sacramento River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"EC","probability":33.0},"San Joaquin River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"EC","probability":33.0},"South Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"Tulare Lake":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0}},"issued_on":"2026-09-17","label":"ASO 2027","lead_file":"lead11_ASO_prcp.shp","product":"seasprcp","valid_end":"2027-10-31","valid_label":"ASO 2027","valid_start":"2027-08-01"},{"by_region":{"Central Coast":{"alternatives":[{"area_fraction":0.373,"category":"Below","probability":33.0}],"area_fraction":0.626,"category":"EC","probability":33.0},"Colorado River":{"alternatives":[],"area_fraction":1.0,"category":"Below","probability":33.0},"North Coast":{"alternatives":[],"area_fraction":0.998,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"Sacramento River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"EC","probability":33.0},"San Joaquin River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"South Coast":{"alternatives":[],"area_fraction":0.997,"category":"Below","probability":33.0},"South Lahontan":{"alternatives":[{"area_fraction":0.356,"category":"EC","probability":33.0}],"area_fraction":0.644,"category":"Below","probability":33.0},"Tulare Lake":{"alternatives":[{"area_fraction":0.352,"category":"Below","probability":33.0}],"area_fraction":0.648,"category":"EC","probability":33.0}},"issued_on":"2026-09-17","label":"SON 2027","lead_file":"lead12_SON_prcp.shp","product":"seasprcp","valid_end":"2027-11-30","valid_label":"SON 2027","valid_start":"2027-09-01"},{"by_region":{"Central Coast":{"alternatives":[{"area_fraction":0.017,"category":"Below","probability":33.0}],"area_fraction":0.981,"category":"EC","probability":33.0},"Colorado River":{"alternatives":[{"area_fraction":0.115,"category":"EC","probability":33.0}],"area_fraction":0.884,"category":"Below","probability":33.0},"North Coast":{"alternatives":[],"area_fraction":0.998,"category":"EC","probability":33.0},"North Lahontan":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"Sacramento River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"San Francisco Bay":{"alternatives":[],"area_fraction":0.901,"category":"EC","probability":33.0},"San Joaquin River":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0},"South Coast":{"alternatives":[{"area_fraction":0.008,"category":"EC","probability":33.0}],"area_fraction":0.989,"category":"Below","probability":33.0},"South Lahontan":{"alternatives":[{"area_fraction":0.209,"category":"Below","probability":33.0}],"area_fraction":0.791,"category":"EC","probability":33.0},"Tulare Lake":{"alternatives":[],"area_fraction":1.0,"category":"EC","probability":33.0}},"issued_on":"2026-09-17","label":"OND 2027","lead_file":"lead13_OND_prcp.shp","product":"seasprcp","valid_end":"2027-12-31","valid_label":"OND 2027","valid_start":"2027-10-01"}],"note":"Region category is the CPC polygon covering the largest share of the DWR hydrologic region; EC (33) where no polygon covers it.","regions":["Central Coast","Colorado River","North Coast","North Lahontan","Sacramento River","San Francisco Bay","San Joaquin River","South Coast","South Lahontan","Tulare Lake"]}
