Sandy Fire Explodes to 1697 Acres in Simi Valley as Santa Ana Winds Finally Subside Wednesday Giving Firefighters Upper Hand With 60 to 80 Percent Containment Projected by May 28
SIMI VALLEY, CALIFORNIA — The Sandy Fire has grown dramatically to 1,697.6 acres in the Simi Valley area of Southern California, but there is cautious optimism Wednesday morning as Santa Ana winds that drove explosive fire growth over the past 36 hours are finally subsiding as of 7:00 AM on Wednesday, May 20, 2026. Forecasters project the fire could reach 60 to 80 percent containment by May 28 through June 3, 2026 as weather conditions improve.
From 183 Acres to Nearly 1700 Acres in Hours
The scale of growth on the Sandy Fire tells the story of how dangerous the Santa Ana wind event was over the past day and a half. The fire has expanded from its earlier size to 1,697.6 acres, driven by the offshore flow pattern that brought very blustery and critically dry conditions across much of southern and central California into Nevada. Those same winds are now finally beginning to ease, marking a potential turning point in firefighting operations.
Why Wednesday Morning Brings Better News for Firefighters
Two key atmospheric changes are working in favor of firefighting crews as of Wednesday morning:
- Santa Ana winds are subsiding after driving extreme fire behavior for the past 36 hours
- A deeper marine layer combined with a secondary low-pressure axis off Santa Barbara is moving toward the area, introducing cooler and more humid conditions
While this shift will not immediately eliminate the fire threat, it will give firefighting crews a significant upper hand compared to the brutal conditions they faced during the height of the wind event.
The Zones Currently Under Evacuation Orders and Warnings
The fire is burning in the Simi Valley and surrounding canyon communities, with multiple zones under active evacuation orders and warnings. Areas currently affected include:
- Simi Valley and Santa Susana
- Meier Canyon and Burro Flats
- Bell Canyon and Cheeseboro Canyon
- Box Canyon and Meier Canyon
- Oak Park and Agoura Hills
- West Hills and LAC-Lakemanor area
- Calabasas corridor
The Containment Outlook Through Memorial Day and Beyond
The improving wind pattern heading into Memorial Day weekend is expected to make a measurable difference in firefighting progress. As the onshore flow gradient strengthens later in the holiday weekend, fire conditions will become significantly more favorable for containment operations. Forecasters project that 60 to 80 percent containment is achievable across the affected fire areas between May 28 and June 3, 2026.
Additionally, a weather system being monitored for May 25 through May 29 and another around June 1 through June 3 could bring light precipitation and morning drizzle along the coastal plain from San Diego up through Pismo Beach, further aiding long-term fire recovery.
Stay with CabarrusWeekly.com for live Sandy Fire updates and containment progress through the Memorial Day weekend.
