How will the 2026 Super El Niño affect my area?

Impacts vary by region. Enter your city or ZIP code on El Niño Impact to see projected rainfall and temperature changes, the most likely hazards (flooding, storms, drought, or wildfire), live weather, and any active alerts for your location.

When will the 2026 El Niño have the strongest effects?

El Niño effects in the U.S. are typically strongest during the winter months, roughly December through March, though the peak window differs by region.

Where does El Niño Impact get its data?

Live weather and alerts come from NOAA's National Weather Service, and El Niño strength uses NOAA's official Oceanic Niño Index (ONI). Regional impact estimates are grounded in documented El Niño climatology.

Pomona

High Impact

Los Angeles County, CA · As of August 8, 2026 at 5:09 PM

What to Expect for Pomona

A wetter, stormier winter is likely, with raised flood and landslide risk across the Southwest.

El Niño Related Alerts

Checking NWS for active alerts…

Projected Impact for Pomona

RAINFALL

+30%

vs. seasonal normal

TEMPERATURE

+0.8°C

anomaly vs. normal

PRIMARY RISK

Flooding & landslides

most likely hazard

PEAK WINDOW

Dec–Mar

strongest effects

Current El Niño Strength

Loading NOAA ENSO data…

Super El Niño chance - 2026 Outlook

88%

How to prepare

Check off steps as you complete them — your progress is saved on this device.

Recommended supplies

Gear matched to Pomona’s El Niño risks.

Battery-backup sump pump

Keeps a basement or crawlspace dry even if the power drops during a storm.

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Sandbags & flood barriers

Divert water away from doors and low entry points before a heavy-rain event.

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Water leak alarm sensors

Cheap sensors that alert you the moment water reaches a floor or sump.

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Waterproof document bag

Protects IDs, insurance papers and passports if you have to move fast.

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Portable power station

Runs a fridge, lights and phones through a multi-hour outage.

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NOAA emergency weather radio

Hand-crank radio that still gets alerts when cell and power are down.

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LED lanterns & headlamps

Reliable hands-free light for an outage — safer than candles.

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Emergency preparedness kit

A ready-made 72-hour kit covers most gaps in one purchase.

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First-aid kit

A stocked kit for the household plus any pets.

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Emergency water storage

One gallon per person per day is the standard planning figure.

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Hand-crank phone charger

Keeps a phone alive for alerts when the grid is out.

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Pomona Weather

LIVE

Los Angeles County, CA · As of 5:09 PM

No weather data.

Live data — Open-Meteo.

Regional impact figures are general estimates grounded in documented El Niño climatology (see source note above) — not a location-specific forecast. Actual conditions for any single season can differ.