Update 10:00 PM EDT Thurs: Helene's eyewall is beginning to move ashore along the Florida Big Bend region.

Helene is an extremely dangerous Category 4 hurricane. As catastrophic winds spread onshore, please do not leave your shelters and remain in place through the passage of these life-threatening conditions. When the eye comes ashore, do not venture out! Helene is moving quickly, and hazardous winds will return rapidly as the eye passes.

National Hurricane Center

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RT @noaaocean: Water levels along the Gulf Coast of Florida are sharply rising (the red line in the graph below) as Hurricane Helene approaches. View real-time water level and meteorological data at: https://t.co/QetAmiLhjE

Follow your local National Weather Service office for the latest safety information: https://t.co/U8S69i6E5f

NOAA Satellites

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Tropical Storm #Isaac Advisory 5: Isaac Strengthening and Likely to Become a Hurricane Soon. https://t.co/tW4KeGe9uJ

National Hurricane Center

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A reminder - @CIRA_CSU will have a network outage from 9pm MST on Sep 26th 2am MST, Sep 27th. CIRA's image products and websites be unavailable during this outage.

Follow @NWSNHC for updates on Helene and @NOAASatellites for imagery during this period.

https://t.co/oO4fVqtjzw

CIRA

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RT @NWSWilmingtonNC: Hurricane #Helene is approaching landfall on the FL Gulf Coast as a category four storm. A tornado risk will continue overnight here across the eastern Carolinas. We also expect increasing winds late tonight into Friday morning with gusts of 40-50 mph possible. #ncwx #scwx https://t.co/uPulId0NvU

NOAA Satellites

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Hurricane #Helene Advisory 15: Hurricane Helene Very Close to Making Landfall in the Florida Big Bend. Accompanied By a Catastrophic Storm Surge and Life-Threatening Winds. https://t.co/tW4KeGe9uJ

National Hurricane Center

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🌿Nature's Lexicon: Unlocking the enigmatic language of #biodiversity

Mangroves are vital ecosystems that store carbon and are crucial in tackling the impacts of #ClimateChange. 🌏

‌But what's the definition of #mangrove according to
@IPBES！👇 https://t.co/yJbSgEiVLJ

UN Biodiversity

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Lightning flashes within the eyewall of Hurricane Helene as it quickly approaches landfall. https://t.co/J1LpP1WBDO

CIRA

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RT @ActionAid: 📢The current climate finance is a drop in the ocean vs the TRILLIONS needed for the Global South’s urgent climate needs

We are calling for Global North countries to #PayUp for climate finance! #FundOurFuture ✊

@ActionAidNG #ClimateAction https://t.co/Xd3uzb6vJ5

Greenpeace International

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RT @GreenpeaceNZ: Imagine if we had the chance to stop an environmental disaster before it started. That's exactly what we can do as Norway plans to mine the Arctic seabed 😡

Deep sea mining could cause irreversible harm to fragile ecosystems. The Arctic’s deep sea is largely unexplored so species could be lost here before they have even been discovered💔

The ocean should be a sanctuary for life, not a mining site. Take action and sign the petition to protect the Arctic before it’s too late.

Sign the petition here:

https://t.co/II4KBZk6c4

#StopDeepSeaMining #SaveTheArctic

Greenpeace International

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There is no more time to waste! Here are 8 climate actions for a sustainable 🌍 👇

What is your #ClimateAction?

via @FAO https://t.co/ry44mb7VxC

UN Biodiversity

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Hurricane Helene makes landfall in the Florida Big Ben region as a Category 4 storm.

Helene is a dangerous hurricane with powerful storms surge and winds of 140 mph. https://t.co/2D41xTcdi1

CIRA

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RT @NWS: A catastrophic and deadly storm surge is occurring along portions of the Florida Big Bend coast, where inundation could reach as high as 20 feet above ground level, along with destructive waves. There is also a danger of life-threatening storm surge along the remainder of the west coast of the Florida Peninsula.

NOAA

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RT @NWS: Damaging wind gusts will penetrate well inland over portions of Georgia and the Carolinas tonight, particularly over the higher terrain of the southern Appalachians. Residents in these areas should be prepared for the possibility of long-duration power outages. If you use a generator after the storm, be sure it is placed outside at least 20 feet away from doors, windows, and garages to avoid deadly carbon monoxide poisoning.

NOAA

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