[Martyn Wells]

One of the Euro agencies names these systems, but not like the regional mets authorities who control the tropical basins. These storms are pretty frequent here, with sub 960mb pressures and a fairly common feature every year for us. They are never barotrophic, warm cored or tropical in nature though... just low pressure systems with baroclinic zones and good old cold and warm and/or occluded front.

[P.K.]

ldavidcooke, on 23 May 2012 - 10:49, said:

Where we have had some damage from a Not' Easter though even if it develops tropical characteristics, it would not seem necessary to name, as most go fish, with most of the energy primarily being down wind. Europe on the other hand, is up wind the energy and as such the Lee shore sees nearly Cat. 1 damage, hence naming becomes important for maritime and preperation tracking purposes.

They aren't named for tracking purposes in Europe. TCs are named purely to help the public to keep track of otherwise we could quite happily just use their numbers.

Naming the lows and highs in Germany is purely to make money, not to do anything else.

[PK2]

IIRC there are two orgs that name lows in Europe' the German "Institute for Meteorology" via it's "Adopt A Vortex" program and Norway. However AFAIK there's no criteria based on strength, depth, structure, etc that need to be met for them to be named they just have to exist. It's not really comparable to the US system for hurricanes

[Halo]

DWD often use ex-hurricane names (or tropical storm) if the extratropical low has originated from the tropical cyclone, similar to what the Met Office might do but for a short while. DWD might use the term 'ex-such and such' for days though.

This post has been edited by Halo: 23 May 2012 - 12:24

[ldavidcooke]

Hey Martyn,

That was the main reason I thought it imperative to fly over 92L as it appeared to be a mix. What with the outflow reaching near to 250mb and pressures est. below 1000 mb and as you had suggested a warm core. However, the occluded eye, north the N. Jetstream was of a typical deep cylonic low. Hence, I did not understand why the treatment was different from the actions we would have taken on the Western shore.

(Normally, a quick 15-20km high milk-run and a satellite uplink TX for the dropsonde would be a normal precaution here, if there was any tropical character. Must be a funding issue..., I can certainly understand that...) As to 93L, funny they did not mention the fly-over on the NHC bulletin; yet, it was on the local news... Ah well,...

(PK/PK2, understand the naming gambit, I just think naming was initially a "hunters" revenge..., then again it may have been related to most sailors being loath to the presence of the femine gender... Nice to see the "smeer" going both ways now, though agree numbers would have made more sense... As to every storm having a name, lets just say it offers plenty of opportunity to get 15 sec. of "fame"...)