Using this link, those RIT scores correspond to 98% for Math and 95% for Reading (beginning of 3rd grade).
http://pickens.it.schoolfusion.us/m...ssionid=14d1e9266e4482d198ebc39c6e6bc9c3NWEA anchors their "gifted" label to the 95% but most schools seem to use other criteria.
Do you have updated scores? You may also want to ask for her NWEA Student Progress Report and look at her growth.
It sounds like the MAP results are more in line with the NNAT.
P.S. Sounds like something else to bring up with the tester(WISC discrepancy with NNAT, MAP, and Mommy gut). Just curious, was the tester a private psych or someone with the school?