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Daily brief · Friday, September 11
Friday is the wind day. The zone forecast issued 5:42 PM has mostly sunny skies, highs 66 to 78; the grid updated 5:41 PM has no rain, a 37 F low tonight and town gusts from 22 mph at 10 AM to 29 mph at 2 to 3 PM, easing after 7. The 6:52 PM outlook: elevated fire danger over the Divide Friday, isolated storms back for the weekend.
Up high, partly sunny, 57 to 67, west gusts to around 35 mph. Modeled peaks: Hope 41 to 56, gusts 32 to 33 from 2 PM on; Mosquito 36 to 52, 35 mph at noon; Elbert 32 to 48, 38 mph at 5 PM. Sunrise 6:42, sunset 7:19, UV 7.5. Saturday 10 percent, Sunday 30, Monday 40.
Water: the Arkansas at Granite ran 47.5 to 64.0 F Thursday, under the 65 F trout-stress line all day; 61.5 F at 6:45 PM. Halfmoon Creek 5.40 cfs at 58.1 F. Arkansas near Leadville 9.65 cfs.
Roads: both passes dry at 7:01 PM. US 24 MP 166 to 168 runs continuously through Saturday night; Minturn and the Twin Lakes paving 7 to 7; Johnson Village bridge through 5 PM. Nothing posted for Sunday.
Written 2026-09-10, 7:54 PM MT.
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A daily precipitation percentage is the day's own maximum from 5 AM to midnight, not a schedule; an overnight storm crossing the date line counts toward the evening it belongs to, not the morning after. Where a day is wet enough for timing to matter, the orange line under its percentage gives the longest continuous stretch of that day whose own hourly probability reaches most of the daily figure. It is read from hourly model data and, at several days of lead time, that data arrives in multi-hour blocks, so treat the edges as guidance rather than as a start time.
Data in this page rendered live at 09/11/2026 02:53 MT (NOAA/NWS models via Open-Meteo, USGS gauges); your browser also refreshes these numbers on load.
Up high
Model forecasts corrected to each elevation, conditions above treeline are usually far harsher than town. Afternoon thunderstorms are common in summer; most parties plan to be off high summits and passes by early afternoon. The storm-risk line under each peak is a modeled estimate, not an observation: it reads Open-Meteo hourly precipitation probability and CAPE at that peak's own elevation across the 11 AM to 8 PM window, and reports the window peak plus the first hour that reaches 30 percent. It is a planning input for turnaround times, not a forecast of whether a specific storm will hit you. Check the official NWS forecast and read the sky before you go.
Water · flows & temps7-day detail
| Gauge | Flow | Water temp |
|---|---|---|
| Arkansas R. nr Leadville | 9.88 cfs | - |
| Halfmoon Creek | 5.14 cfs | 50.4°F |
| Arkansas R. at Granite | - | 53.6°F |
Snowpack · checked 2026-09-10
Snow water equivalent 0 in, snow depth 0 in, daily value for 2026-09-09. Station medians: first snow water Oct 12, peak 20.8 in on May 11, melt-out Jun 22. Nearest automated snow station to Leadville, on Fremont Pass north of town. Baked in at build time from USDA NRCS data.
Trails & roads · notices verified 2026-09-10
Highway status · checked 2026-09-10, 7:50 PM MT
Leadville to I-70 at Copper Mtn, MP 0 to 22.6. Surface condition operator-confirmed dry Thursday at 7:01 PM; CDOT's forecast line on the segment was refreshed at 7:24 PM. No closures or restrictions posted on this segment at the 7:50 PM pull. · The Lake County zone forecast issued 5:42 PM Thursday has mostly sunny skies Friday with west winds 10 to 15 mph, mostly cloudy Saturday with a 10 percent thunderstorm chance, partly sunny Sunday at 30 percent and Monday at 40. Above 11,000 ft, partly sunny Friday at 57 to 67 F with west gusts to around 35 mph; the outlook issued 6:52 PM has elevated fire danger over the Divide and interior valleys Friday, then isolated to scattered storms from the weekend.
Minturn at I-70 south to Buena Vista, MP 143.4 to 210.8, the whole Leadville approach in one COtrip segment. Surface condition operator-confirmed dry Thursday at 7:01 PM, with CDOT's forecast line refreshed at 7:24 PM. The Red Cliff maintenance incident at MP 153.4 reported Wednesday morning is no longer in the CDOT incident feed at the 7:50 PM pull. · Same shape as CO 91: dry and breezy Friday with gusts near 29 mph in town mid afternoon, 10 percent Saturday, 30 Sunday.
Road construction between Tennessee Pass Summit and Sylvan Lakes Road, MP 166 to 168, four to six miles north of Leadville: alternating traffic, 11 ft width limit. Posted as one continuous block from Thursday Sep 10 at 6 PM through Saturday Sep 12 at 11:59 PM, so it is in place all day Friday and Saturday. Pulled Sep 10, 7:50 PM MT.
Paving operations with alternating traffic, 12 ft width limit and 40 mph, posted Friday Sep 11 and Saturday Sep 12, 7 AM to 7 PM each day. Nothing posted for Sunday. Pulled Sep 10, 7:50 PM MT.
Road construction at Minturn, MP 148 to 148.5, alternating traffic, 11 ft width limit, posted Friday Sep 11, 7 AM to 7 PM. Its last posted window this week. Pulled Sep 10, 7:50 PM MT.
Bridge maintenance on the Arkansas River bridge at Johnson Village, MP 213.4 to 213.5, south of Buena Vista: right lane closed, one alternating lane, 11 ft width limit. Posted continuously through Friday Sep 11 at 5 PM. Off the corridor for anyone coming in from I-70; it matters on the approach from the south. Pulled Sep 10, 7:50 PM MT.
The COtrip planned-events feed holds five remaining schedule windows on the corridor, all listed above, and nothing for Sunday Sep 13 or later. An absence in the feed means CDOT has not published more, not that the work is finished; the US 24 resurfacing project north of Leadville, MP 148 to 175, is scheduled through November. Statewide the feed held 178 planned events and 10 incidents at the 7:50 PM pull; the only corridor incident record is the long-running Minturn MP 145.1 utility-work entry.
Highway data from CDOT / COtrip, state highways only: surface conditions and scheduled work from CDOT's road-conditions and planned-events feeds, and active incidents (red bar) from its incident feed, each stamped with the time CDOT reported it. County and forest roads are covered in the notices below.
USFS order 02-12-01-26-36 was signed Aug 19 and runs from Aug 21 at 12:01 AM through Sep 30 at 11:59 PM unless rescinded. It supersedes order 02-12-01-26-33, and the affected recreation site list is not the same. Still closed: Mount Massive Wilderness, Mount Massive Trail 1487, Highline and Native Lake Trail 1489, Willow Creek Trailhead, Elbert Creek Campground, Halfmoon East and Halfmoon West Campgrounds, and Colorado Trail 1776 Segment 11 at the Mount Massive Trailhead. Newly listed compared with the previous order: Mount Massive Trail 1487 and the Colorado Trail segment. No longer listed: North Mount Elbert Trail 1484, Windsor Lake Trail 1490 and North Halfmoon Creek Trail 1485. The described area now runs south of Turquoise Lake, south of County Road 4 and NFSR 105 to Busk Creek, east of the tree line at the Busk Creek switchback, south and east along the eastern slope of Mount Massive to the wilderness boundary near the North Halfmoon Trailhead, east to the main Mount Massive Trailhead, and from there along the NORTH side of Halfmoon Creek to the east boundary of the forest. Whether the standard Mt. Elbert north route falls inside or outside the closure is set by the map exhibit attached to the order, not by the rec-site list, and Elbert Creek Campground is still closed. Call the Leadville Ranger District at 719-486-0749 before you plan on it. Order number, signature date, effective dates, described area and rec-site list were read directly from the order text on Aug 20. Re-read on the full district alert list Sep 10 at 7:50 PM, unchanged. This is now the operative closure. Both 2026 Leadville 100 races have now been run on courses rerouted around the earlier version of this closure, with Hagerman Pass Road, Sugarloaf Mountain and Powerline off both. The closure itself outlasts the race season: it runs to Sep 30 unless rescinded, so it governs autumn hiking on Mount Massive and the Halfmoon drainage, not just race week.
Official source: USFS Pike-San Isabel NF
Order 02-12-00-26-37, signed Aug 20, replaced the Stage 2 order 02-12-00-26-29 that had covered the Leadville Ranger District since Aug 2. Stage 1 took effect at 12:01 AM on Aug 21 and runs through Nov 14 at 11:59 PM unless rescinded, across the Leadville, Salida, San Carlos, Pikes Peak, South Park and South Platte districts. What actually changes: campfires are permitted again, but only in a permanent metal or concrete fire pit or grate that the Forest Service has installed and maintains at a developed recreation site, meaning campgrounds and picnic areas. Dispersed camping still means no fire of any kind, including charcoal and briquettes. A device fuelled solely by liquid or gas that can be turned on and off is allowed in an area cleared of flammable material within three feet, and a fully enclosed metal stove with a chimney at least five feet long and a quarter inch spark arrestor is allowed with ten feet cleared. Smoking is prohibited except in an enclosed vehicle or building, at a developed recreation site, or while stopped in a barren three foot circle. Explosives are prohibited and welding needs a ten foot cleared area and an extinguisher. The practical version for anyone camping here through the autumn: a fire is legal at a developed campground fire ring and nowhere else on forest land. Read directly from the order text on Aug 20. Re-read on the full district alert list Sep 10 at 7:50 PM, unchanged.
Official source: USFS Pike-San Isabel NF
The Forest Service alert list carries a Leadville Ranger District closure of Turquoise Lake Road, County Road 4, due to asphalt damage. The road is barricaded from the Abe Lee parking turnoff to Hagerman Pass. Access to Turquoise Lake is still available via County Road 9C and County Road 9 to the Hagerman Pass intersection, and the Abe Lee fishing site remains open and reachable from CR 4. The alert start date is April 7, 2026 and no end date is posted. It did not affect the three official crew locations for the 2026 Run, which were Outward Bound, Pipeline Alternate and Twin Lakes Village. With the race season over it matters most to anglers and to anyone driving the lake loop, because the through route to Hagerman Pass from the Abe Lee end is gone. It has now been closed for five months with no end date posted. Re-read on the full district alert list Sep 10 at 7:50 PM, unchanged.
Official source: USFS Leadville Ranger District
USFS order 02-12-01-26-19 closes the Interlaken Hotel and Annex area on the Leadville Ranger District from June 22, 2026 at 12:01 AM through June 21, 2028 at 11:59 PM unless rescinded. Entering the described area is prohibited, for public safety in an area with known hazards from tree fall and damaged buildings. The described area is defined only by the map exhibit attached to the order, so where its boundary falls relative to the Colorado Trail is not stated in the order text. If your Twin Lakes plans involve walking out toward Interlaken, call the Leadville Ranger District at 719-486-0749. The order runs to June 2028, so this is a two year condition rather than a seasonal one. Note also that an older district alert from June 12 still says the Dexter House is safe to tour while other buildings should be avoided; the June 22 closure order is the later and stricter document. Re-read on the full district alert list Sep 10 at 7:50 PM, unchanged.
Official source: USFS Leadville Ranger District
The road over Mosquito Pass (13,185 ft) is a rough, high-clearance 4x4 route, typically passable only mid-summer through early fall depending on snow. There is no official live status feed for this county road, so reports from recent travelers and the ranger district are the best sources. No closure or restriction is posted for it on the district alert list as of the full re-read at 7:50 PM Sep 10.
Official source: USFS Leadville Ranger District
Checked each evening against official sources, USFS alerts, InciWeb fire closures, and CDOT. Always verify with the land manager before you go: Pike-San Isabel NF (Leadville Ranger District) · COtrip road conditions (US 24 / CO 91) · CAIC avalanche forecasts (winter).
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Start with the altitude guide, at 10,152 feet how you handle your first 48 hours matters more than anything you pack. Then: where to stay, getting here, the Leadville 100 crew guide, acclimatization strategies for racers, 16 years of race-weekend weather, how to get into the Leadville 100, and Mosquito Pass. All guides live under Guides.