{
 "number": 608,
 "headline": "May 16, 2025 Friday Tropical Update",
 "standfirst": "Transition to cooler pattern",
 "desk": "tropics",
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 "edition": "2025-05-16",
 "published": "2025-05-16T14:33:32.113000Z",
 "updated": null,
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 "body_key": "substack/163709318-may-16-2025-friday-tropical-update.html",
 "teaser_html": "<p>Glad we made it to Friday!  Just over 2 weeks until the start of Atlantic hurricane season.  The Eastern Pacific is already underway but no signs of development in either basin for at least the next 7-10 days.  Thereafter, we might see our first system in the Eastern Pacific along the coast of Mexico heading into the end of the month.</p><p>My second favorite parameter is the Integrated Vapor Transport (IVT) along with the deep layer winds moving around the moisture.  We can see the east to west movement of moisture and storms in the tropics, and the west to east movement of weather systems in the middle latitudes.  Non-tropical low pressure systems work with subtropical ridges to grab moisture out of the tropics via atmospheric rivers providing much of our rainfall and storms across the Lower 48 on a daily and weekly basis.</p>",
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 "source": "substack",
 "canonical": "https://weather.substack.com/p/may-16-2025-friday-tropical-update",
 "slug": "may-16-2025-friday-tropical-update",
 "path": "/mp/608/",
 "url": "https://forecastpost.com/mp/608/",
 "desk_label": "Tropics",
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