Miller A or Miller B

[Poconolover]

I was just wondering if someone would explain to me what these types of storms are. I read about these before, but I forget what they are. I live in the Philly area, do these type of storms mean big snow for us or not? Is one better then the other for huge snowstorms for the big cities? Thanks for your help.

[GalvestonDuck]

If I understand correctly, Miller B low pressure systems come down out of Canada and Miller A's are from the south.

As for what impact they'll have on your snowfall amounts, I'll defer to the experts. Seems reasonable to me that the Canadian stuff would be colder, but that doesn't necessarily mean more snow. Just my guess. I'm an amateur.

[Poconolover]

Thanks for the explanation. I am a novice too. At least now I have an idea of what we are talking about.

[SacrydDreamz]

Typical Miller B systems are characterized by a primary low pressure system from the southern plains or gulf coast moving ENE and NE into the Tennessee or Ohio Valley. Once there the primary dissipates, redevelopment takes place along the southeast cost, and the secondary low can track E, NE, or even N. The track of the secondary makes all the difference in the world in the northeast.

Typical Miller A systems follow a path from the southern plain or gulfcoast straight thru the southeast and off the southeast or mid-atlantic coast. There is no secondary development though center jumps are some times experienced with Miller A's

Anyone else want to add anything or simply better explain this?

[GalvestonDuck]

Ah, see...I was told wrong.

[Stormsfury]

SacrydDreamz's (Randy's) explanation was quite good about Miller A and Miller B cyclones ...

I have a writeup from the Raleigh, NC WFO regarding just such ...

http://www.stormsfury1.com/Weather/Cyclogenesis.html

SF