* WHAT...Sub-freezing temperatures as low as 27 expected.
* WHERE...Upper Santa Cruz River Valley/Altar Valley, Upper San
Pedro River Valley, Eastern Cochise County below 5000 feet and
Upper Gila River Valley.
* WHEN...From 1 AM to 9 AM MST Sunday.
* IMPACTS...Frost and freeze conditions will kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.