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AP EXPLAINS: How one computer forecast model botched Ian
The Associated Press ^ | October 7, 2022 | By SETH BORENSTEIN

Posted on 10/07/2022 3:32:34 PM PDT by Oldeconomybuyer

As Hurricane Ian bore down on Florida, normally reliable computer forecast models couldn’t agree on where the killer storm would land. But government meteorologists are now figuring out what went wrong — and right.

Much of the forecasting variation seems to be rooted in cool Canadian air that had weakened a batch of sunny weather over the East Coast. That weakening would allow Ian to turn eastward to Southwest Florida instead of north and west to the Panhandle hundreds of miles away.

The major American computer forecast model -- one of several used by forecasters -- missed that and the error was “critical,” a National Oceanic and Atmospheric Administration postmortem of computer forecast models determined Thursday.

“It’s pretty clear that error is very consequential,” said former NOAA chief scientist Ryan Maue, now a private meteorologist who wasn’t part of NOAA’s postmortem.

Still, meteorologists didn’t miss overall with their official Hurricane Ian forecast. Ian’s eventual southwestern Florida landfall was always within the “cone of uncertainty” of the National Hurricane Center’s forecast track, although at times it was on the farthest edge.

But it wasn’t that simple. Computer forecast models, which weeks earlier had agreed on where Hurricane Fiona was going, were hundreds of miles apart as Ian chugged through the Caribbean.

The normally reliable American computer model, which had performed better than any other model in 2021 and was doing well earlier in the year, kept forecasting a Florida Panhandle landfall while the European model -- long a favorite of many meteorologists — and the British simulation were pointing to Tampa or farther south.

(Excerpt) Read more at apnews.com ...


TOPICS: Culture/Society; Government; News/Current Events; US: Florida
KEYWORDS: fl; florida; hurricane; hurricaneian; ian; models
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To: Oldeconomybuyer

I figure the computer knows DeSantis is a nazi so it screwed him.


41 posted on 10/08/2022 5:13:00 AM PDT by Pollard (Worm & GMO Free - some call us purebloods)
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To: Oldeconomybuyer

I was FLAMED for my vanity post stating the forecast models were being messed with...THEY WERE...Keep watching this story grow.

https://freerepublic.com/focus/f-chat/4096126/posts


42 posted on 10/08/2022 5:54:10 AM PDT by devane617 (Discipline Is Reliable, Motivation Is Fleeting..)
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To: Joe Brower

Yeah, one of the “Spaghetti” Tracks is right, but how many were wrong in the computer models?


43 posted on 10/08/2022 7:26:13 AM PDT by mfish13 (Elections have Consequences.)
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To: grobdriver
And these people want to destroy our society because they know what the earth's climate is doing - and that it's our fault.

Well, it's always easier to predict the weather 100 years into the future than a few days into the future... /s

44 posted on 10/08/2022 8:11:14 AM PDT by GOPJ (Trump EARNED his money. Money dems have, they steal from taxpayers. It's why they hate Trump.)
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To: SauronOfMordor
Any bets on whether there was a new affirmative action hire in the modeling group?

Twenty new sexual weirdos - fourteen former men who had their dicks lopped off... and 6 'things' that can't be identified yet. All failed out of college math classes...

45 posted on 10/08/2022 8:18:22 AM PDT by GOPJ (Trump EARNED his money. Money dems have, they steal from taxpayers. It's why they hate Trump.)
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To: devane617

Good call. Nice to have documented proof that freepers are smarter than the climate cultists.


46 posted on 10/08/2022 8:25:32 AM PDT by wgmalabama (Censored!)
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To: Oldeconomybuyer

The NWS are deep staters that hate Floridians and DeSantos. You fill-in the rest.


47 posted on 10/08/2022 8:29:33 AM PDT by George from New England
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To: Joe Brower
NHC Graphics Archive 5 day forecast track with each update
48 posted on 10/08/2022 8:52:16 AM PDT by NautiNurse (Ron DeSantis is Top Gov)
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To: Oldeconomybuyer
“It’s pretty clear that error is very consequential,”

Yeah, kinda like an “ election” that put a demented pedophile in the White House.

49 posted on 10/19/2022 4:45:04 AM PDT by immadashell (Save Innocent Lives: Ban Gun Free Zones)
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