ATIS Alerts

Harris Runway Airport (21MT) Area Aviation Weather & Runway Winds

Aviation weather near Harris Runway Airport in Bozeman, MT, decoded from the nearest reporting station (KLVM) — conditions, runway crosswinds, and free Telegram airport alerts.

Harris Runway Airport (21MT) is a general aviation airport serving pilots in and around Bozeman, MT at 4,582 ft. 21MT has no weather station of its own — conditions here are decoded from KLVM, about 26 nm away, the nearest reporting station, and local conditions can differ. Its 4 runways (9, 18, 27, 36) — longest 2,050 ft — are checked against the current wind in the crosswind table below. The nearest TAF is issued for KLVM. Track it in the ATIS Alerts Telegram bot to get alerts read from KLVM, the station this page is based on.

VFR
Observed 0053Z (6:53 PM MDT)live · refreshes every 60s

No weather station at this airport — showing the nearest station KLVM, 26.3 nm away.

Wind
130° 3 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
29.94"
Temp / Dew
31°C / 87°F
dew 10°C

Wind from the southeast (130°) at 3 kt, visibility 10+ statute miles, no cloud data, temperature 31°C (87°F), altimeter 29.94 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KLVM 290053Z AUTO 13003KT 10SM CLR 31/10 A2994 RMK AO2 LTG DSNT SW SLP090 T03060100

What changed at KLVM (nearest station)?

Since the 2353Z (5:53 PM MDT) report — compared automatically against the latest METAR.

  • Temperature down 3°C.

This is exactly what ATIS Alerts watches for you — get a Telegram message when 21MT's weather changes, free →

Current pilot readout for 21MT

Based on the nearest station (KLVM), 21MT is currently VFR with winds from 130° at 3 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 9, about 2 knots. Density altitude is approximately 7,550 ft (field elevation 4,582 ft). Review the latest TAF below for forecast changes before departure.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

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Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Use this section to quickly compare current wind alignment across available runways at 21MT. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
9FAV2 kt tail2 kt right
182 kt tail2 kt right
272 kt tail2 kt right
362 kt tail2 kt right

Open the crosswind calculator — try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip — flight category:VFRMVFRIFRLIFRNo report
0275401Z10Z00Z

Over the last 23 h: wind 43 kt, ceiling unlimitedunlimited.

21MT weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.

Live weather radar around Harris Runway Airport in Bozeman, MT: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around 21MT is headed.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

Pilot reports (PIREPs) within 100 NM of 21MT

Reported by pilots in flight over the past 6 hours — via aviationweather.gov.

PIREP0034Z (6:34 PM MDT) · 68 NM W of 21MT · during climb · E75L
occasional moderate 15,500–16,500 ft turbulence
Show raw report
BTM UA /OV CPN155040/TM 0034/FL170/TP E75L/TB OCNL MOD 155-165 /RM DURC /ZLC
BTM UAHeader — reporting station and UA: a routine pilot report.
OV CPN155040Location — fix or navaid, optionally with a radial and distance in NM.
TM 0034Reported at 00:34 UTC.
FL170Altitude: 17,000 ft MSL.
TP E75LAircraft type reporting.
TB OCNL MOD 155-165Turbulence: occasional moderate 15,500–16,500 ft.
RM DURC /ZLCRemarks.
PIREP2233Z (4:33 PM MDT) · 56 NM SW of 21MT · 36,000 ft MSL · B39M
Show raw report
DLN UA /OV DLN095025/TM 2233/FL360/TP B39M/SK TOP 390/ZLC
DLN UAHeader — reporting station and UA: a routine pilot report.
OV DLN095025Location — fix or navaid, optionally with a radial and distance in NM.
TM 2233Reported at 22:33 UTC.
FL360Altitude: 36,000 ft MSL.
TP B39MAircraft type reporting.
SK TOP 390/ZLCSky condition — cloud bases and tops in hundreds of feet MSL.

⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.

Recent aviation weather trends at 21MT

From ATIS Alerts' hourly weather history.

Over the past 24 hours, the nearest station KLVM reported mostly VFR across 30 observations, with 2 flight-category changes. The strongest gust reached 47 kt, the lowest ceiling was 9,000 ft. Wind most often came from the SW.

Last 24 hours
VFR 97%MVFR 3%
Wind avg/max: 8/22 kt
Max gust: 47 kt
Lowest ceiling: 9,000 ft
Lowest vis:
Prevailing wind: SW
Category changes: 2

Most recent change: MVFRVFR

Last 7 days
VFR 98%MVFR 2%
Wind avg/max: 8/22 kt
Max gust: 37 kt
Lowest ceiling: 9,000 ft
Lowest vis: 3 sm
Prevailing wind: W
Category changes: 4

Most recent change: MVFRVFR

Active Runway - past 30 days
9/18/27/36
100%

TAF — Terminal Aerodrome Forecast

Issued 2325Z (5:25 PM MDT)

TAF KLVM 282325Z 2900/2924 VRB06KT P6SM VCSH SCT090 SCT150 TEMPO 2900/2904 VRB20G40KT 6SM -TSRA BKN080CB FM290500 29006KT P6SM SCT150 FM291800 22012KT P6SM BKN250 PROB30 2918/2924 VRB20G40KT 6SM -TSRA BKN080CB

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Airport facts

Reference data from the OurAirports dataset.

Type
General aviation airport
FAA LID
21MT
City
Bozeman
State
Montana
Country
United States
Elevation
4,582 ft
Coordinates
45.7478, -111.0727
Runways
4
Longest runway
2,050 ft
Weather reporting
Nearest station KLVM
TAF
Nearest KLVM
Time zone
America/Denver
Sunset in
1h 8m

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Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

RC flying fields nearby

AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.

All RC flying fields →

See all Montana airports →

21MT weather — frequently asked

What runways are available at 21MT?+

21MT has 4 runways — 9, 18, 27, 36; the longest is 2,050 ft. This page computes the live crosswind for each runway end from the current wind.

Where does the weather shown for 21MT come from?+

Harris Runway Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KLVM, about 26 nm away — close enough for situational awareness, but local conditions at 21MT can differ.

Does 21MT have a TAF?+

Yes — the KLVM TAF is shown on this page below the current conditions.

Does 21MT broadcast D-ATIS?+

No — 21MT does not broadcast D-ATIS. Alerts for 21MT from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.

Pilot PIREPs for Harris Runway Airport (21MT)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Harris Runway Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for 21MT yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only — not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

From the ATIS Alerts team

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