Winter Storm Warning Issued for San Bernardino County Mountains Through Thursday Morning
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A major winter storm is expected to bring heavy snow and wind gusts exceeding 70 mph to the San Bernardino County Mountains, creating impossible travel conditions.
Read this weather record in 30 seconds
- Record type
- Winter Storm Warning
- Affected area
- San Bernardino County Mountains
- Issued
- April 6, 2026
- Issuing authority
- NWS San Diego
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in San Bernardino County Mountains.
Alert Details
The National Weather Service in San Diego has issued a Winter Storm Warning for the San Bernardino County Mountains. The alert is effective from 10:00 AM PST on Monday, February 16, through 9:00 AM PST on Thursday, February 19.
Affected Areas
This warning specifically impacts the San Bernardino County Mountains. Impacted travel routes may include I-15 near the summit of the Cajon Pass, particularly on Wednesday and Thursday mornings.
What You Should Do
Residents and travelers are advised to prepare for hazardous conditions. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Travel could be very difficult to impossible, potentially impacting Monday morning and evening commutes. For the latest road conditions, call 511.
Expected Conditions
Significant snow accumulation and high winds are forecast across multiple rounds:
- Snowfall Totals (Monday - Tuesday morning): 6-10 inches between 6,000-7,000 feet; 10-18 inches between 7,000-8,000 feet; and up to 30 inches above 8,000 feet.
- Snowfall Totals (Tuesday night - Wednesday morning): An additional 8-15 inches expected between 6,000-7,500 feet.
- Wind Speeds: Initial south winds will gust between 40-60 mph on ridges and desert slopes. Stronger southwest winds with gusts in excess of 70 mph are possible late Tuesday and Wednesday.
- Snow Levels: Starting around 6,800-7,500 feet on Monday, levels will fall to near 5,000 feet by early Tuesday and approximately 4,000 feet by Wednesday morning.
Timeline
- Monday, Feb 16 (10:00 AM): Warning begins as the first round of heavy snow arrives.
- Tuesday, Feb 17: Occasional light snow showers during the day, followed by widespread moderate snow late Tuesday.
- Wednesday, Feb 18: Moderate snow continues through the morning with peak wind gusts.
- Thursday, Feb 19 (9:00 AM): Warning expires following light snow showers and a few additional inches of accumulation.
Original source: NOAA Official Notice ↗
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