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ClimateMoving now · day 3

Tropical Storm Polo forms off Mexico's Pacific coast, may become major hurricane

The season's newest eastern Pacific storm could rapidly intensify into a Category 3-plus hurricane near Mexico's western coast, forecasters warn.

What to know

  • Tropical Storm Polo formed off southwestern Mexico with 40 mph winds and is forecast to strengthen rapidly.
  • Meteorologist Daniel Swain says record-warm ocean temperatures and low wind shear could push Polo into a major (Cat 3+) hurricane near Mexico's western coast or Baja California.
  • Heavy rain is already forecast for the Mexican states of Michoacán, Colima and Jalisco through Thursday.
  • Two other tropical storms, Fay in the Atlantic and Odalys further out in the Pacific, formed around the same time but remain far from land.

Daniel Swain Climate scientist (weatherwest)U.S. National Hurricane Center Official forecasting agency

Tropical Storm Polo forms off Mexico's Pacific coast, may become major hurricane
Philadelphia Inquirer

How it unfolded 1 development · click the chart to see its coverage articlesposts

Peak 14 pieces in one hour at Yesterday, 7 AM; 174 pieces over 3 days (106 articles · 4 videos · 59 posts · 5 comments) Sep 20, 9 PM — 3 pieces · 3 posts — Mastodon 2, Bluesky 1Sep 20, 10 PM — quietSep 20, 11 PM — 2 pieces · 2 articles — Newswires 2Sep 21, 12 AM — quietSep 21, 1 AM — quietSep 21, 2 AM — quietSep 21, 3 AM — quietSep 21, 4 AM — quietSep 21, 5 AM — quietSep 21, 6 AM — quietSep 21, 7 AM — quietSep 21, 8 AM — quietSep 21, 9 AM — 1 piece · 1 article — Newswires 1Sep 21, 10 AM — quietSep 21, 11 AM — 2 pieces · 2 posts — Mastodon 2Sep 21, 12 PM — quietSep 21, 1 PM — 5 pieces · 5 articles — Google News 4, Newswires 1Sep 21, 2 PM — 3 pieces · 3 articles — Newswires 3Sep 21, 3 PM — 8 pieces · 4 articles · 4 posts — Mastodon 4, Newswires 4Sep 21, 4 PM — 1 piece · 1 article — Newswires 1Sep 21, 5 PM — quietSep 21, 6 PM — quietSep 21, 7 PM — 2 pieces · 2 posts — Mastodon 2Sep 21, 8 PM — quietSep 21, 9 PM — quietSep 21, 10 PM — quietSep 21, 11 PM — 1 piece · 1 post — Bluesky 1Sep 22, 12 AM — quietSep 22, 1 AM — quietSep 22, 2 AM — 3 pieces · 3 articles — Newswires 3Sep 22, 3 AM — quietSep 22, 4 AM — 1 piece · 1 article — Newswires 1Sep 22, 5 AM — 1 piece · 1 article — Newswires 1Sep 22, 6 AM — quietSep 22, 7 AM — quietSep 22, 8 AM — 4 pieces · 4 articles — Newswires 2, Google News 1, Mastodon 1Sep 22, 9 AM — 2 pieces · 2 articles — Newswires 2Sep 22, 10 AM — 9 pieces · 7 articles · 2 posts — Google News 4, Newswires 3, Mastodon 2Sep 22, 11 AM — 3 pieces · 2 articles · 1 post — Bluesky 1, Google News 1, Newswires 1Sep 22, 12 PM — quietSep 22, 1 PM — 3 pieces · 2 articles · 1 post — Newswires 2, Mastodon 1Sep 22, 2 PM — 9 pieces · 7 articles · 2 posts — Newswires 7, Mastodon 1, Reddit 1Sep 22, 3 PM — 5 pieces · 1 article · 2 posts · 2 comments — Reddit 3, Bluesky 1, Newswires 1Sep 22, 4 PM — 4 pieces · 1 article · 3 posts — Mastodon 2, Bluesky 1, Newswires 1Sep 22, 5 PM — 4 pieces · 2 articles · 2 posts — Newswires 2, Mastodon 1, Reddit 1Sep 22, 6 PM — 2 pieces · 1 article · 1 comment — Reddit 1, Newswires 1Sep 22, 7 PM — 9 pieces · 4 articles · 1 video · 4 posts — Mastodon 5, Newswires 3, YouTube 1Sep 22, 8 PM — 1 piece · 1 article — Newswires 1Sep 22, 9 PM — 1 piece · 1 comment — Reddit 1Sep 22, 10 PM — 8 pieces · 5 articles · 1 video · 2 posts — Newswires 3, Google News 2, Mastodon 1, +2 moreSep 22, 11 PM — 2 pieces · 1 article · 1 post — Mastodon 1, Newswires 1Yesterday, 12 AM — 2 pieces · 1 article · 1 comment — Reddit 1, Newswires 1Yesterday, 1 AM — quietYesterday, 2 AM — 7 pieces · 3 articles · 4 posts — Mastodon 4, Newswires 3Yesterday, 3 AM — 2 pieces · 1 article · 1 post — Mastodon 1, Newswires 1Yesterday, 4 AM — 1 piece · 1 post — Bluesky 1Yesterday, 5 AM — 2 pieces · 1 article · 1 post — Mastodon 1, Newswires 1Yesterday, 6 AM — 2 pieces · 2 articles — Newswires 2Yesterday, 7 AM — 14 pieces · 12 articles · 2 posts — Newswires 8, Google News 4, Mastodon 2Yesterday, 8 AM — 4 pieces · 2 articles · 1 video · 1 post — Newswires 2, Mastodon 1, YouTube 1Yesterday, 9 AM — 6 pieces · 5 articles · 1 post — Newswires 5, Mastodon 1Yesterday, 10 AM — 5 pieces · 3 articles · 1 video · 1 post — Newswires 2, Google News 1, Mastodon 1, +1 moreYesterday, 11 AM — 2 pieces · 1 article · 1 post — Mastodon 1, Newswires 1Yesterday, 12 PM — 4 pieces · 2 articles · 2 posts — Mastodon 3, Newswires 1Yesterday, 1 PM — 4 pieces · 3 articles · 1 post — Newswires 3, Mastodon 1Yesterday, 2 PM — 3 pieces · 2 articles · 1 post — Newswires 2, Mastodon 1Yesterday, 3 PM — 1 piece · 1 post — Mastodon 1Yesterday, 4 PM — 1 piece · 1 article — Newswires 1Yesterday, 5 PM — quietYesterday, 6 PM — quietYesterday, 7 PM — 1 piece · 1 post — Mastodon 1Yesterday, 8 PM — 3 pieces · 1 article · 2 posts — Mastodon 2, Newswires 1Yesterday, 9 PM — quietYesterday, 10 PM — 1 piece · 1 article — Newswires 1Yesterday, 11 PM — 5 pieces · 2 articles · 3 posts — Mastodon 3, Newswires 2Today, 12 AM — 2 pieces · 2 posts — Mastodon 2Today, 1 AM — 3 pieces · 2 articles · 1 post — Mastodon 3 1
Sep 21Sep 22yesterdaynow · 2:06 AM ET
  1. 1

    Meteorologist Daniel Swain warns Polo could reach Category 3+

    Climate scientist Daniel Swain (weatherwest) said conditions are highly favorable for strengthening because of record-warm ocean temperatures and low wind shear, raising the possibility Polo becomes a major hurricane threatening Mexico's western coast or Baja California.

    “Polo may threaten some portion of western coast of Mexico/Baja as a major (Cat 3+) storm in coming days.”
    — Daniel Swain
    1. first by Philadelphia Inquirer, 1d ago · also Boston Globe, NPR Science, NPR News, The Oregonian, PennLive, MassLive +11

      9 more headlines
    2. first by Philadelphia Inquirer, 3d ago · also The Weather Network, NY Post, Boston Globe, CBS News, CP24, Mercury News +9

      16 more headlines
    6 more claims →
    • zoom.earth

      Wow. Hurricane #Polo looks spectacular from satellite this morning 🌀 It’s a category 5 beast with winds of 260 km/h (160 mph), and still intensifying. Luckily, it is still forecast to turn away from landfalling over Mexico.

      zoom.earthBluesky1d ago320▲view on Bluesky ↗
    2 more of the top 3 · 26 posts in this stretch
    • AkaSci

      Hurricane Polo, off the west coast of Mexico, is now a Cat 5 hurricane. It exploded from 40 mph to 160 mph in just 36 hours, thanks to extra warm ocean waters, light wind shear, abundant moisture and yes, climate change. Expected to strengthen to 175 mph in the next 12 hours. https://www. nhc.noaa.gov/refresh/graphics_…

      AkaSciMastodon1d ago38▲view on Mastodon ↗
    • Do we? If a cat 5 is already flattening everything I dont see what additional categories would bring to the table. And if someone isn't taking a Cat 3 seriously (I know some people like that) I don't see adding more changing that behavior either

      Dragrunarmr/news1d agoview on r/news ↗
    all of them →
  2. background

    Two other tropical storms, Fay and Odalys, also active — Tropical Storm Fay formed in the northern Atlantic with 70 mph winds near hurricane strength but was forecast to weaken, while Tropical Storm Odalys formed far southwest of Mexico with 50 mph winds and was expected to strengthen into a hurricane within a day; both remained far from land.

  3. background

    Tropical Storm Polo forms off southwestern Mexico — Polo formed with maximum sustained winds near 40 mph, centered about 270 miles south of Manzanillo and 270 miles southwest of Zihuatanejo, moving east-northeast at 5 mph. The National Hurricane Center forecast rapid strengthening and a track turning east Tuesday, then sharply north-northwest Wednesday, with heavy rain expected for Michoacán, Colima and Jalisco through Thursday.

Also covered reported alongside — the timeline has no entry for these yet

  1. first by FreightWaves, 15h ago · also ZeroHedge

    1 more headline
  2. first by PennLive, 1d ago · also NY Post

    1 more headline
  3. first by PBS NewsHour, 1d ago · also Hindustan Times

    1 more headline
  4. first by NYT, 12h ago · also NYT Climate

  5. first by LA Times, 2d ago · also LA Times California

and 5 smaller pieces

What people are saying 21 voices from 3 sites · best of 26 · verbatim