[Avodah] Hurricanes and eruvin

[Zev Sero]

Question: The eye of Hurricane Irene isn't expected to hit NYC until
Sunday afternoon, but the leading edge is expected 24 hours earlier.
Does anyone have any idea whether this would invalidate the chezkas
kashrus of an eruv, and if so from when?  From when the heavy rain
starts?  From when one first notices a ruach she'eina metzuya?  Or
can one assume it will last at least until after Shabbos?

This is somewhat nogea` to me not only in the practical sense, but
because yesterday I filled in for the usual eruv inspector, who is away.
I walked the 10-km perimeter and found only one break, which will have
been fixed by now (though I haven't yet received word of the repair).
So I feel something of a proprietary interest in it this Shabbos, and
don't want to see some storm "undo my work" so to speak :-)

-- 
Zev Sero        If they use these guns against us once, at that moment
zev at sero.name   the Oslo Accord will be annulled and the IDF will
                 return to all the places that have been given to them.
		                            - Yitzchak Rabin