Hurricanes - millibars vs in Hg
 

Early in Irene's development, I could have sworn the pressure was being reported in inches of Hg, now she's in millibars.

Anyone have an idea of why storms are in mb?

i believe you will see both.....

It's so that the French will acknowledge and report the storms. For example, Quebec will not allow a hurricane to enter if its pressure is reported in inches of Hg. :p

Now thats funny!!

Storms are always referenced in millbars when in international airspace, once they coast-in, that's when you transition to in/Hg

Yeah....once American starts to take notice it is all in/Hg after that :D

USMCFLYR

Not sure if that's sarcasm or not, but

Intellicast - Hurricane Irene Current Track in United States

Shows mb.

Maybe it's up to the whim of the reporting agency. Just an anomaly I noticed. No worries, I think I'll sleep tonite :)

It's just been reported that severe weather could be possible with this hurricane.:eek:


Ally

the cynical angle on this
 

When the hysteria machine decides that it will be a big news item they probably prefer mb because the numbers are bigger, and therefore possibly scarier, to the couch potatoes watching on TV.

WW