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El Niño update, October 16: what to know
California: High Wind Warning and Red Flag Warning in effect as of 11:14 AM, Oct 16 Pacific, for parts of Western Santa Monica Mountains Recreational Area, Santa Susana Mountains and Interstate 5 Corridor. NOAA's Climate Prediction Center ENSO status: El Niño Advisory.
NOAA’s current status
El Niño Advisory
ONI +2.2 °C (JAS 2026) · next CPC update November 12, 2026 · CPC discussion (opens in a new tab)
What CPC, ONI, NWS and D0–D4 mean
- CPC
- NOAA’s Climate Prediction Center, which sets the El Niño and La Niña status (Watch, Advisory) once a month.
- ONI
- The Oceanic Niño Index: how much warmer (+) or cooler (−) than normal the surface of the central Pacific Ocean was over three months. The letters are the months, so JJA is June, July and August. El Niño conditions are +0.5 °C or warmer.
- NWS
- The National Weather Service, which issues the weather watches, warnings and advisories for your area.
- D0–D4
- The U.S. Drought Monitor’s levels: D0 abnormally dry, D1 moderate drought, D2 severe, D3 extreme and D4 exceptional drought. Each percentage is the share of the state at that level or worse.
Region by region
California and the Sierra
5 active alerts
What’s happening
- Active NWS alert: Red Flag Warning, in effect until 10:00 PM PDT (NWS Hanford CA), for parts of Central Sierra, North Kings River and Sequoia Kings. Source: NWS active alerts — CA (opens in a new tab)
- Active NWS alert: Beach Hazards Statement, in effect until 9:00 PM PDT (NWS San Francisco CA), for parts of San Francisco, Coastal North Bay Including Point Reyes National Seashore and San Francisco Peninsula Coast. Source: NWS active alerts — CA (opens in a new tab)
- Active NWS alert: Wind Advisory, in effect until 10:00 PM PDT (NWS Hanford CA), for parts of Indian Wells Valley, Mojave Desert Slopes and Mojave Desert. Source: NWS active alerts — CA (opens in a new tab)
What to watch for
- The Weather Prediction Center says: “Some high elevation snowfall can’t be ruled out for parts of the Intermountain West and Sierra Nevada by mid- week.” Source: WPC Extended Forecast Discussion (opens in a new tab)
- NOAA’s Climate Prediction Center says: “Above-normal temperature chances are slightly increased across northwestern Washington and coastal southern California into extreme southern Arizona.” Source: CPC 6-10 / 8-14 Day Outlook Discussion (opens in a new tab)
Active NWS alerts: Red Flag Warning: 2 (CA) · Wind Advisory: 2 (CA) · Beach Hazards Statement: 1 (CA)
Southern California
21 active alerts
What’s happening
- Active NWS alert: High Wind Warning, in effect until 8:00 PM PDT (NWS Los Angeles/Oxnard CA), for parts of Western Santa Monica Mountains Recreational Area, Santa Susana Mountains and Interstate 5 Corridor. Source: NWS active alerts — CA (opens in a new tab)
- Active NWS alert: High Wind Warning, in effect until 12:00 AM PDT (NWS San Diego CA), for parts of Riverside County Mountains. Source: NWS active alerts — CA (opens in a new tab)
- Active NWS alert: Red Flag Warning, in effect until 8:00 PM PDT (NWS Los Angeles/Oxnard CA), for parts of Santa Clarita Valley, Ventura County Beaches and Ventura County Inland Coast. Source: NWS active alerts — CA (opens in a new tab)
What to watch for
- NOAA’s Climate Prediction Center says: “Above-normal temperature chances are slightly increased across northwestern Washington and coastal southern California into extreme southern Arizona.” Source: CPC 6-10 / 8-14 Day Outlook Discussion (opens in a new tab)
Active NWS alerts: High Wind Warning: 8 (CA) · Red Flag Warning: 5 (CA) · Heat Advisory: 4 (CA) · Wind Advisory: 4 (CA)
The Southwest
31 active alerts
What’s happening
- Active NWS alert: Dust Storm Warning, in effect until 1:45 PM MDT (NWS Phoenix AZ), for parts of Pinal, AZ. Source: NWS active alerts — AZ (opens in a new tab)
- Active NWS alert: Freeze Warning, in effect until 9:00 AM MDT (NWS Albuquerque NM), for parts of Chaves County Plains. Source: NWS active alerts — NM (opens in a new tab)
- Active NWS alert: Freeze Warning, in effect until 9:00 AM MDT (NWS Midland/Odessa TX), for parts of Northern Lea County, Central Lea County and Davis Mountains. Source: NWS active alerts — NM (opens in a new tab)
What to watch for
- The Weather Prediction Center says: “The speed at which this system propagates east will determine how much precip portions of the Southwestern U.S. get beginning early next week.” Source: WPC Extended Forecast Discussion (opens in a new tab)
- NOAA’s Climate Prediction Center says: “Above-normal temperature chances are slightly increased across northwestern Washington and coastal southern California into extreme southern Arizona.” Source: CPC 6-10 / 8-14 Day Outlook Discussion (opens in a new tab)
Active NWS alerts: Wind Advisory: 14 (AZ, NM) · Freeze Warning: 4 (NM) · Air Quality Alert: 3 (AZ) · Blowing Dust Advisory: 3 (NM) · High Wind Warning: 3 (AZ, NM) · Dust Advisory: 2 (AZ) · Dust Storm Warning: 2 (AZ)
The Gulf Coast
47 active alerts
What’s happening
- Active NWS alert: Flood Warning, in effect until 1:00 AM CDT (NWS Norman OK), for parts of Wichita, TX and Wilbarger, TX. Source: NWS active alerts — TX (opens in a new tab)
- Active NWS alert: Flood Warning, in effect until 3:18 AM CDT (NWS Austin/San Antonio TX), for parts of Val Verde, TX. Source: NWS active alerts — TX (opens in a new tab)
- Active NWS alert: Flood Warning, in effect until 6:44 AM CDT (NWS Midland/Odessa TX), for parts of Brewster, TX. Source: NWS active alerts — TX (opens in a new tab)
What to watch for
- NOAA’s Climate Prediction Center says: “Farther to the east, under the influence of ridging and surface high pressure, probabilities for below-normal precipitation are increased across the Northeast, Ohio Valley, and extending south to the Gulf Coast.” Source: CPC 6-10 / 8-14 Day Outlook Discussion (opens in a new tab)
Active NWS alerts: Wind Advisory: 18 (TX, LA, MS, AL) · Red Flag Warning: 11 (TX, LA, MS) · Flood Warning: 5 (TX) · Freeze Warning: 4 (TX) · Coastal Flood Advisory: 2 (TX) · Rip Current Statement: 2 (TX) · Flood Advisory: 1 (TX) · Flood Watch: 1 (TX) · Frost Advisory: 1 (TX) · High Surf Advisory: 1 (TX) · High Wind Warning: 1 (TX)
The Southeast
12 active alerts
What’s happening
- Active NWS alert: Flood Warning (NWS Melbourne FL), for parts of Lake, FL and Volusia, FL. Source: NWS active alerts — FL (opens in a new tab)
- Active NWS alert: Flood Warning, in effect until 2:00 AM EDT (NWS Tampa Bay Ruskin FL), for parts of Sarasota, FL. Source: NWS active alerts — FL (opens in a new tab)
- Active NWS alert: Flood Warning (NWS Jacksonville FL), for parts of Brantley, GA. Source: NWS active alerts — GA (opens in a new tab)
What to watch for
- The Weather Prediction Center says: “High winds hazards are currently likely from the North Carolina Coast up to the Delaware Coast.” Source: WPC Extended Forecast Discussion (opens in a new tab)
Active NWS alerts: Wind Advisory: 5 (FL, GA, NC) · Flood Warning: 3 (FL, GA) · Freeze Watch: 2 (NC) · High Surf Advisory: 1 (NC) · Lake Wind Advisory: 1 (GA, SC)
Sources
16
- WPC Extended Forecast Discussion (PMDEPD) (opens in a new tab)Issued Oct 16, 2026, 1:27 AM PDT; fetched Oct 16, 2026, 11:14 AM PDT
- CPC 6-10 / 8-14 Day Outlook Discussion (PMDMRD) (opens in a new tab)Issued Oct 15, 2026, 12:02 PM PDT; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — CA (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — AZ (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — NM (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — NV (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — UT (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — TX (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — LA (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — MS (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — AL (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — FL (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — GA (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — SC (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- NWS active alerts — NC (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT
- CPC ENSO Diagnostic Discussion (opens in a new tab)Issue time not listed; fetched Oct 16, 2026, 11:14 AM PDT