* WHAT...For the Frost Advisory, temperatures may briefly dip into the lower to mid 30s resulting in frost formation or a light freeze. For the Freeze Watch, a longer period of sub-freezing temperatures in the mid 20s to around 30 degrees will be possible. * WHERE...Eastern Fremont, Pueblo, Crowley, Otero, Las Animas, Huerfano, Bent, Prowers and Baca Counties. * WHEN...For the Frost Advisory, from 2 AM to 9 AM MDT Friday. For the Freeze Watch, from late Friday night through Saturday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...The coldest readings will occur Friday night into Saturday morning with a killing freeze possible, which could bring an end to the growing season. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.