Mineral King to Mt. Whitney

This is prime March backpacking weather in the Sierra. High pressure is locked in through Saturday with sunny skies, highs around 48-50°F, and light winds under 15 mph. Overnight lows of 32°F mean hard freeze at elevation but comfortable sleeping weather in the valleys. No precipitation in the forecast and no active weather warnings.

Stream crossings are in great shape. All five regional gauges show flows well below median — the San Antonio River is running at just 41% of normal, and even the higher-volume Salinas is only at 76%. With falling or stable trends across all stations, snowmelt isn't driving dangerous afternoon surges. The consistent freeze-thaw cycle (32°F nights, 50°F days) will produce some diurnal variation, but flows are low enough that timing won't be critical for safety.

Snowpack data shows significant coverage at higher elevations — Long Lake reports 98 inches at 8,400 feet, though the falling trend at Annie Springs suggests active settlement and consolidation. This means stable conditions for travel but expect snow coverage above 9,000 feet to require postholing or flotation gear depending on consolidation. The moderate daytime temps won't drive aggressive melt-freeze cycles that create bulletproof surfaces.

With nearly 12 hours of daylight and stable weather, you have flexibility on start times and camp selection. The golden hour lighting from 6:25-7:00 PM will be spectacular for evening photography. Plan water sources around the normal snowmelt pattern — higher flows in late afternoon, but nothing approaching dangerous levels given the current drought conditions.