Why do the the new "Investments" of the season

[Stephanie]

always start with "90" and then count up from there?

Just curious.

[P.K.]

Different numbers are used for different things. 1 to 49 are storm numbers. 50-79 are usually reserve or training numbers, 80-89 are test numbers, 90-99 are invest numbers. I've probably gone wrong here but if I have Senor will likely correct me later.

I'm guessing the previous 90L on the NRL was maybe a mistake or this shouldn't really be number 90.

[NBCintern]

always start with "90" and then count up from there?

Just curious.

Hmm, I am quite surprised that you asked this question being a mod you must have some grasp of weather basics. Kidding of course who knows....I am an intern at NBC in burbank and I don't know half the crap they talk about....

[Stephanie]

always start with "90" and then count up from there?

Just curious.

Hmm, I am quite surprised that you asked this question being a mod you must have some grasp of weather basics. Kidding of course who knows....I am an intern at NBC in burbank and I don't know half the crap they talk about....

I'm sure that I'm not the only weather weenie that knew why they did that either.

Thanks P.K.! I remember the "test" storms being 80 - I think we had some recent discussions about them too.

[Scott_inVA]

Different numbers are used for different things. 1 to 49 are storm numbers. 50-79 are usually reserve or training numbers, 80-89 are test numbers, 90-99 are invest numbers. I've probably gone wrong here but if I have Senor will likely correct me later.

I'm guessing the previous 90L on the NRL was maybe a mistake or this shouldn't really be number 90.

Correct. The "previous" INVEST 90L was actually a test. This is the first INVEST of the 2006 season; therefore it is 90. "L" denotes an AtLantic basin system. Also, INVEST is short for Area of INVESTigation

Scott

[Stephanie]

Thanks Scott for the additional information.

[HalloweenGale]

Just like "E" means East Pacific

[Aslkahuna]

To round out, "C" is for CENPAC, "W" is for WPAC (which includes the South China Sea), "B" is for the Bay of Bengal (in the NIO), "A" is for the Arabian Sea, "P" is for the South Pacific (Southern Hemisphere east of 135E) and "S" is for the South Indian Ocean (Southern Hemisphere West of 135E). NWS has forecating interests in WPAC (Guam and the Marianas as well as the Marshalls), CENPAC of course HI and Johnston Island and in American Samoa. JTWC pretty much covers all Basins except the ATL because of US Military Interests but is an unofficial source for them as the designated RSMCs are the official sources. For Military purposes, the ATL advisories come out of Norfolk after they are briefed by NHC.

Steve

[Stephanie]

Thanks Steve! That explains why there's an "L" and not an "A" for the Atlantic.

[HoustonTexas]

So, will the next possible storm be invest 91L? If so, does it continue on beyond 100? How is it only to 99?

Great thread...been wondering this.

[wxmann_91]

No, after Invest 99L it goes back to Invest 90L.

[Stephanie]

No, after Invest 99L it goes back to Invest 90L.

I was trying to remember what happened last year since we had so many storms. I didn't recall seeing an investment "100L".

Thanks!