Atlantic - Zeta forms October 25, 2020 (tornado, storm, forecast, East)

[Psychoma]

Tue 27-Oct 1pCDT/2pEDT:
No changes so far.
Center about 485miles(785km) S of mouth of MS River.

Upper level outflow clouds associated with Zeta just reaching the Central US Gulf coast.

[Psychoma]

Tue 27-Oct 4pCDT/5pEDT:
Winds 65mph(100km/h)
Moving NW 14mph(22km/h)
Pressure 984mb
Center about 450miles(720km) S of mouth of MS River.
TS winds extend up to 140miles(220km) from center.

Storm hasn’t capitalized on favorable environment around it just yet, still a little off-center from earlier landfall. But storms are now starting to re-fire near the center so should resume strengthening shortly.

Surge Warning canceled from Intracoastal City, LA to mouth of Atchafalaya River (for 1-3ft instead of 2-4ft now).

[Psychoma]

Tue 27-Oct 7pCDT/8pEDT:
Center about 410miles(655km) SSW of mouth of MS River.

Infrared satellite shows steady increase in storms near the center. Should see re-intensification soon.

[Psychoma]

The eventual remnants of Zeta combining with cold front will help create some snow for portions of the Northeast US later this week: https://twitter.com/nwseastern/statu...48195083673601

[Psychoma]

My last post of the night, IR imagery has improved nicely, now a more classic look to a tropical system: https://twitter.com/nwsneworleans/st...65699604422656

[Psychoma]

Wed 28-Oct 7aCDT/8aEDT:
Winds 90mph(150km/h)
Moving N 17mph(28km/h)
Pressure 978mb
Center about 265miles(430km) SW of mouth of MS River
Center about 295miles(470km) SSW of mouth of New Orleans
Hurricane winds extend up to 35miles(55km) from center, TS winds 150miles(240km).

Surge values have been upped slightly once again with 6-9ft possible Pearl River to Dauphin Island: https://twitter.com/nhc_atlantic/sta...80671693058051

NHC now has 100mph hurricane approaching land later today. A more well defined eye/center is able to fight off wind shear much better so now not expected to weaken much, if at all prior to landfall unfortunately (intensity is still one of the hardest parts of a hurricane to accurately predict). It’s increasing forward movement speed will help carry winds well inland as it weakens. Expect scattered downed trees & power outages into SE MS, a good portion of AL and possibly parts of N GA. Tornadoes will likely start to occur later this morning near the Gulf coast and move inland with the storm, mainly NE of storm center.

Edit: anywhere there’s around 40mph or higher predicted then chance of scattered downed trees and power outages typically begin.

[Cambium]

Zeta: https://twitter.com/gdimeweather/sta...19684466593792





Current map. Snowing in New Mexico/Texas and Ice storm in Oklahoma while Hurricane in Louisiana & Mississppi

[Psychoma]

Cold front and edge of Zeta now meeting up in the Gulf on radar: https://twitter.com/weathersources/s...56946831044609

Per Phil Klotzbach, Zeta is strongest Hurricane this far West this late in season on record(weather pattern typically shifts in early October with most storms heading more North/Northeast than more Westward): https://twitter.com/philklotzbach/st...22762007670786

[Psychoma]

For surge gauges can use this interactive map: https://tidesandcurrents.noaa.gov/in...torm/Zeta.html

[Psychoma]

Wed 28-Oct 10aCDT/11aEDT:
Winds 90mph(150km/h)
Moving N 18mph(30km/h)
Pressure 976mb
Center about 220miles(355km) SW of mouth of MS River
Center about 235miles(380km) SSW of New Orleans
Hurricane winds extend up to 35miles(55km) from center, TS winds 150miles(240km).

Majority of winds on the Eastern half of storm. All Tropical Watch/Warnings West of Morgan City, LA canceled.