We combine searches by the CDF and D0 collaborations for
a Higgs boson decaying to W+W-. The data correspond to an integrated
total luminosity of 4.8 (CDF) and 5.4 (D0) fb-1 of p anti-p collisions
at s**(1/2) 1.96 TeV at the Fermilab Tevatron collider. No excess is
observed above background expectation, and resulting limits on Higgs
boson production exclude a standard-model Higgs boson in the mass range
162-166 GeV at the 95% C.L.