Reference

Sources and methodology

How information is collected, matched to routes and turned into warning labels.

Reference

Tag guide

Every categorised report on this site carries a tag. This guide says exactly what each tag covers, what has to happen for it to appear, and, just as important, what it cannot tell you. Nothing here is advice; it describes how retrieved records are categorised.

01

What each warning label means

01

Nothing retrieved

No current record has been retrieved for this route from the connected sources. This is not an all-clear or a statement about conditions.

02

Advisory

At least one active record is attached to this route, but none is marked warning or critical and no closure notice was retrieved.

03

Significant warning

At least one active record attached to this route is marked warning or critical. This label is automatic, not a safety judgement.

04

Closure reported

An active trail closure or permit suspension notice is attached to this route. Check the original notice for its scope and dates.

“Nothing retrieved” means exactly that: none of the connected sources has published anything we could read for this route. It is not a judgement that conditions are good, and it never will be. A district administration office can suspend a trail without putting it anywhere machine-readable, which is why we also read the national disaster register and the daily press.

Raised automatically from a live feed

These come straight from government measurements and forecasts, on a schedule, with no human step.

Flooding
Covers
A monitored river running high enough for the authorities' own warning or danger level, near a route that follows or crosses that river.
What raises it
The department's river-watch gauges are checked hourly. A gauge within 60 km of a route waypoint at its published warning or danger level is shown using that source wording, not converted into a route danger rating.
What it does not mean
The gauge is at a fixed station, not at your crossing. It says nothing about the state of a specific bridge or ford upstream.
High wind
Covers
Forecast wind strong enough on the high passes and ridges to make walking, or crossing an exposed col, difficult.
What raises it
The Department of Hydrology and Meteorology publishes a daily mountain forecast giving wind speed in knots for fixed altitude bands (3,000 / 5,500 / 7,000 / 9,000 m) in each province. TrekStatus reads the band closest to the route's high ground and presents the published figure as an official measurement or forecast, not a route danger rating.
What it does not mean
It is a forecast for an altitude band across a whole province, not a measurement taken on your trail. Calm valley weather can sit under a windy pass, and the reverse.

Only from a published notice

No connected feed reports these as numbers. They appear when an authority publishes a notice describing them, recorded with its source link.

Rainfall
Covers
Heavy or prolonged rain stated in a retrieved forecast or notice.
What raises it
Appears when an authority's own bulletin or notice describes heavy rainfall for an area a route passes through.
What it does not mean
It is not a landslide prediction, and it carries no assessment of trail surface.
Snowfall
Covers
Snow accumulating on the route, typically on a pass, as stated in a retrieved forecast or notice.
What raises it
Appears when a retrieved bulletin states snowfall for an area a route passes through. Waypoint snowfall figures in the weather table come from the Open-Meteo model and are shown as numbers, not as a warning.
What it does not mean
Snow depth on a pass is not the same as the modelled fall at a coordinate, and nothing here judges whether a pass is crossable.
Avalanche
Covers
An avalanche reported, or an avalanche risk stated, by an authority for a named area.
What raises it
Only from a retrieved official notice. Nepal publishes no routine avalanche-danger scale, so this tag is never derived from weather figures.
What it does not mean
Absence of this tag is not an all-clear: unreported slides are the norm, not the exception.
Landslide
Covers
A slope failure across or above the trail, or the access road to it, reported by an authority.
What raises it
Only from a retrieved official notice naming the affected place.
What it does not mean
It does not tell you whether the route has since been cleared unless a later notice says so.
Extreme cold
Covers
Temperatures stated by a forecast or notice as unusually severe for the season.
What raises it
From the department's mountain forecast temperature for the altitude band nearest the route, or from a retrieved notice.
What it does not mean
Ordinary high-altitude cold is not tagged. Every route here is freezing at night in season; only an unusual figure is flagged.
Trail damage
Covers
The path itself washed out, broken or blocked, as described by an authority or operator.
What raises it
From a retrieved notice describing the damaged section.
What it does not mean
It does not imply an official closure. See the closure tag for that.
Bridge damage
Covers
A footbridge damaged, swept away or closed on the route.
What raises it
From a retrieved notice naming the bridge or crossing.
What it does not mean
A diversion is only shown when the issuing body published one; we never invent an alternative line.
Closure
Covers
A section of route, or a permit, formally closed or suspended by an authority.
What raises it
From a published closure notice by a park, conservation authority, district office, tourism board or immigration.
What it does not mean
The absence of a closure notice does not mean a route is open; local offices can close a section without publishing.
Other
Covers
A retrieved record that does not fit the tags above, including any tag retired from this list.
What raises it
Applied when an authority's notice describes a condition outside the categories above.
What it does not mean
It is not a catch-all for minor issues; read the notice and its source.