# Locate Blow-up in NDSolve with Whenevent

At some point I get this error:

Warning: scaled local spatial error estimate of 32773.0090044258 at
t = 987.7919550194803 in the direction of independent variable x is much greater than the
prescribed error tolerance. Grid spacing with 1001 points may be too large to achieve the
desired accuracy or precision.


(etc.)

How do I track this time with WhenEvent? How is this scaled local spatial error kept in NDSolve?

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– Michael E2 Apr 1 '14 at 16:31