Top Tweets for #PTCNine
Quite the difference between the operational Euro and the AI model, with ops being west impacting the Carolinas with #PTCNine (advisories coming at 5PM EDT per NHC) - and the AI out to sea.
Google Deepmind also has some ensemble members staying off shore - a good challenge to see if AI can handle binary interaction with #Humberto - or if the interaction/proximity issue is overdone in the physics based models.
Does seem the DeepMind ensembles lose the circulation near Cuba almost immediately, lots of uncertainty coming this weekend. If in the SE US - dust off your hurricane plan today please.

‼️ #PTCNine has been upgraded to Tropical Storm Helene. Hurricane, Storm Surge, and Flood Watches remain in effect. A Local State of Emergency has been declared for Pinellas County. Make preparations now for impacts: https://t.co/qoC5nl4OZD and https://t.co/jjHKiSKag9.
I've been working with our GIS team @BaronWeather on a hurricane impacts dashboard for enterprise. I'm curious what the night owls think. Imagine a company's assets instead of population. Helpful? Feedback welcome! #Helene #PTCNine

Un equipo de mujeres del WFO San Juan realizó el lanzamiento del globo meteorológico durante el paso del Potencial Ciclón Tropical Nueve. 🌀
#prwx #usviwx #PTC9 #HurricaneSeason2020 #PTC #ptcnine #WomenInSTEM #PTC09 #PTC9
It has taken the better part of 36h, but the latest #ASCAT pass finally shows fairly good evidence of a closed, well-defined vortex with #PTC9, near the convective blow up happening well south of #PuertoRico (15.5N/66W).
Also, note all the >34kt winds north of the island.
For those with family in #PuertoRico, here is what we will likely see for wind speeds in #SanJuan from #PTCNine #PTC09 over the next 24 hours. For the USA, we still need to see where the center is past #Hispaniola.

Did this 2330Z flight get cancelled? Why are we not flying into #PTCNine? No flights since this morning.

From every loop something different to see #PTCNine
NHC 11 PM: "The disturbance has not become any better organized since the previous advisory". Clearly they're expecting a center to form on the southern side of the large gyre linked to #PTCNine. Still tons of uncertainty on the future of what is still a tropical wave.

Así lucía la isla de St. Thomas a consecuencia del potencial ciclón tropical número 9.
Video suministrado por José Ramos. @adamonzon @NWSSanJuan
#prwx #PTCNine #PTC09 #ptc #StThomas
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