TWO new version is up

[cycloneye]

Starting on May 15, we will see the changes that will be good.

[Iceresistance]

Finally! We won't get confused on this!

[cycloneye]

The ID of invests in the TWO's is the best thing that the outlooks will have followed by the 7 day.

[tolakram]

Good changes. Better late than never.

[LemieT]

Excellent. Better data dissemination is always welcome.

[CrazyC83]

The only thing that could be an issue is if there are so many Invests in rapid fire that numbers are used so quickly, it could create confusion. Also, it isn't uncommon that systems are identified in the TWO well before they get tagged as Invests. Usually, that occurs when they are around 40% in the 2 day.

One thing I would change for depressions and PTC's is that instead of "(number)", I would call them "(number-L)". I think we've adapted enough that having the L indicator would create consistency with the EPAC and CPAC. For example, TD 11 in the Atlantic in 2022 would become TD 11-L.

[Iceresistance]

The only thing that could be an issue is if there are so many Invests in rapid fire that numbers are used so quickly, it could create confusion.

One thing I would change for depressions and PTC's is that instead of "(number)", I would call them "(number-L)". I think we've adapted enough that having the L indicator would create consistency with the EPAC and CPAC. For example, TD 11 in the Atlantic in 2022 would become TD 11-L.

Well, for the EPAC, there is the "-E" suffix and CPAC has the "-C" suffix.

There are some sites that put Tropical Depressions as (for example) 16L in the Atlantic.

[wxman57]

Quite an advancement. We've been producing a 7-day outlook for 20+ years. Each disturbance gets its own individual number that we track across the basin until it develops or dissipates.

[Hurricanehink]

Quite an advancement. We've been producing a 7-day outlook for 20+ years. Each disturbance gets its own individual number that we track across the basin until it develops or dissipates.

Just curious, how many disturbances warrant advisories each year?

[wxman57]

Quite an advancement. We've been producing a 7-day outlook for 20+ years. Each disturbance gets its own individual number that we track across the basin until it develops or dissipates.

Just curious, how many disturbances warrant advisories each year?

We issue advisories on any disturbance that we think has a 50% or greater chance of development within the next 48 hours. With that in mind, most disturbances that we issue advisories on end up developing each season. There may be 1-3 that never make it, though.

[cycloneye]

NHC adds all the details about this and other new products at their site.

https://www.nhc.noaa.gov/pdf/NHC_New_Pr ... s_2023.pdf

[AtlanticWind]

Just wondering what everyone thinks on the NHC now going
Out 7 days on the outlooks.

[Sciencerocks]

I think it is wonderful and the nhc is more then skilled enough to be putting these out. I'd also love to see a little extra bit about expected track and intensity if an invest as let say 60%+ chance of development.

[cycloneye]

Only a few hours left to see the new version of the TWO.

[cycloneye]

Here is the first TWO with the new version.

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 AM EDT Mon May 15 2023

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

Tropical cyclone formation is not expected during the next 7 days.

Today, May 15th, marks the first day of routine issuance of the
Atlantic basin Tropical Weather Outlook in 2023. This product
describes significant areas of disturbed weather and their
potential for tropical cyclone formation during the next seven
days. The Tropical Weather Outlook is issued from May 15 through
November 30 each year. The issuance times of this product are 2
AM, 8 AM, 2 PM, and 8 PM EDT. After the change to standard time
in November, the issuance times are 1 AM, 7 AM, 1 PM, and 7 PM EST.

A Special Tropical Weather Outlook will be issued to provide
updates, as necessary, in between the regularly scheduled issuances
of the Tropical Weather Outlook. Special Tropical Weather Outlooks
will be issued under the same WMO and AWIPS headers as the regular
Tropical Weather Outlooks.

A graphical version of the Tropical Weather Outlook is available on
the web at: https://www.hurricanes.gov.

$$
Forecaster Kelly/Cangialosi