The Narrows — Zion
Zion, UT
Elevation Profile
Current Conditions
Bottom Line
Saturday night is the problem — 73% chance of thunderstorms overnight in a slot canyon is a serious hazard. Plan your exit from The Narrows to be complete before Saturday afternoon, and watch Virgin River flows closely; the upstream snowpack and any rain Saturday will push flows higher through the weekend.
65°/33°F · Sunny
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52" depth
Elevated flows · 5 gauges
No active fires within 50 miles
13h 27m daylight · Sunrise 6:47 AM · Sunset 8:14 PM
Full Briefing
The big issue here is Saturday night: 73% precip with thunderstorms likely, and you're talking about a slot canyon with zero escape options if the Virgin River flashes. The Narrows is one of the most flash-flood-prone corridors in the Southwest — upstream rain, even miles away, translates to fast, deadly rises with no warning. You need to be out of the canyon and off the river by early Saturday afternoon at the latest, not at the trailhead, but physically clear of any narrows sections where walls close in and there's nowhere to go.
Current stream flow data for this briefing pulled gauges in central California, which don't apply to the Virgin River — that's a data gap worth flagging. For actual Virgin River conditions, check the USGS gauge at Virgin River at Virgin, UT (site 09405500) before you launch and again Friday morning. That said, the weather pattern here is the real driver: highs in the mid-60s Thursday and Friday with overnight lows dropping to 33°F means daytime snowmelt from the Markagunt Plateau above Zion is adding to base flows each afternoon, with some overnight recovery. Any rain Saturday — even light precip at 15% chance during the day — starts priming the watershed before that 73% thunderstorm window opens Saturday night. Flows will be rising through your trip, not falling.
Thursday through Friday are legitimately good canyon days. Sunny, light wind (2–8 mph), 13.5 hours of daylight. If you're doing the top-down overnight, get into the canyon Thursday, camp at Big Springs or above, and plan a full exit day Friday to put the narrows sections behind you before Saturday's pattern arrives. That gives you a comfortable buffer. Friday night's mostly cloudy skies and 39°F low with 1% precip is benign — no concern there.
No fires within 50 miles, so air quality is clean. Overnight lows hitting 33°F Thursday and 34°F Saturday night mean a sleeping bag rated to at least 20°F is appropriate — canyon walls stay cold and you lose the sun early in that corridor. Sunrise isn't until 6:47 AM and canyon shadow will extend that further; expect a cold start each morning. Be out of The Narrows before Saturday afternoon.
Waypoints
Temple of Sinawava
Shuttle stop at the end of the Zion Canyon Scenic Drive. Paved 1-mile Riverside Walk to water entry.
3,999 ft
Riverside Walk End / Water Entry
End of the paved trail. Enter the river and wade upstream.
4,032 ft
Wall Street
The narrowest section—walls just 20 feet apart, 1,000 feet tall. The iconic photo spot.
4,101 ft
Big Spring (turnaround)
Natural spring emerging from the canyon wall. Common turnaround for bottom-up hikers.
4,199 ft
Route Details
Distance
8.0 mi
Elevation Gain
499 ft
Elevation Loss
499 ft
Max Elevation
4,199 ft
Estimated Days
1
Trailhead
Temple of Sinawava
Best Season
May through October. Flash flood risk—always check forecast. Spring runoff can make water too high in May.
About This Route
The Narrows is a slot canyon hike through the Virgin River in Zion National Park, wading upstream through a canyon only 20 feet wide at its narrowest, with walls rising 1,000 feet on either side. It is one of the most unique hike experiences in the American West—more swimming and wading than walking. The classic hike enters from the bottom of the canyon at the Temple of Sinawava and follows the river upstream as far as desired. The top-down route from Chamberlain's Ranch is 16 miles one-way with a permit and shuttle. Most hikers do a 4-8 mile out-and-back from the bottom. The primary hazard is flash flooding. The canyon has no escape routes for large sections, and storms anywhere in the watershed—including storms 100 miles north—can send a wall of water down the canyon with little warning. Check the flash flood forecast at the visitor center. The park closes the Narrows if the flood risk is elevated. Water temperature averages 68°F in summer. Dry suits are rented near the park entrance for cold months. Trekking poles and canyoneering shoes dramatically improve stability on the slippery cobbles. Wildlife includes herons, canyon wrens, and the occasional water snake.
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