387 WWUS76 KSGX 170959 NPWSGX URGENT - WEATHER MESSAGE National Weather Service San Diego CA 159 AM PST Sun Nov 17 2024 CAZ048-050-171700- /O.CON.KSGX.FR.Y.0013.000000T0000Z-241117T1700Z/ San Bernardino and Riverside County Valleys-The Inland Empire-San Diego County Valleys- Including the cities of El Cajon, Santee, and Moreno Valley 159 AM PST Sun Nov 17 2024 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... * WHAT...Overnight temperatures of 28 to 37 degrees will result in frost formation in wind sheltered valleys in portions of the Inland Empire and San Diego County. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire and San Diego County Valleys. * WHEN...Until 9 AM PST this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...Lowest temperatures will be in and near Ramona and San Pasqual Valley in San Diego County and near Corona and Sun City in the Inland Empire. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CO