Summer may be over, but the numbers of counties under burn bans continues to rise.A month ago, there were 103 counties throughout the state forbidding outdoor fires. That number climbed by another 38 when Lamesa Fire Chief Larry Duyck presented a fire threat report to county commissioners Tuesday afternoon.There are now 146 counties under burn bans.County commissioners and fire department officials throughout the state base their decision to implement burn bans depending upon their area’s Keetch-Byram Drought Index (KBDI) ratings.The KBDI numbers, ranging from zero to 800, are calculated from an area’s soil and vegetation conditions.Dawson County’s KBDI rating increased ...