From the Tarrant RACES website:
Tarrant County RACES frequencies for SkyWarn
VHF Primary | 146.940 |
Backup | 146.760 |
South East | 147.140 |
South West | 146.680 |
North East | 147.100 |
North West | **OUT OF SERVICE** |
Alternate 1 | 146.840 |
Alternate 2 | 147.280 |
UHF Primary | 444.100 |
UHF Wide | 442.400 |
Full frequency list on TARRANT RACES webiste