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🟡 Moderate
Dense Fog Advisory
Val Verde; Edwards; Real; Bandera; Kinney; Uvalde; Medina; Bexar; Maverick; Zavala; Frio; Atascosa; Wilson; Karnes; De Witt; Lavaca; Dimmit
Dense Fog Advisory issued December 17 at 8:46PM CST until December 18 at 9:00AM CST by NWS Austin/San Antonio TX
Alert Description
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...A portion of south central Texas. * WHEN...Until 9 AM CST Thursday. * IMPACTS...Hazardous driving conditions due to low visibility.
Safety Instructions
If driving, slow down, use your low beam headlights, and leave plenty of distance ahead of you.
Time Information
Effective
Dec 18, 2025, 5:00 AM
Expires
Dec 18, 2025, 3:00 PM
Issued
Dec 18, 2025, 2:46 AM
Alert Details
Severity
Moderate
Urgency
Expected
Certainty
Likely
Category
Met
Issued By
NWS Austin/San Antonio TX
National Weather Service