Reverse 5 Bar M Airport (31MT) Area Aviation Weather & Runway Winds
As of 7:53 AM MDT, Oct 28, based on the nearest station (KGTF), 31MT is currently VFR with winds from 230° at 11 knots, visibility 10+ statute miles, and no ceiling reported.
Aviation weather near Reverse 5 Bar M Airport in Great Falls, MT, decoded from the nearest reporting station (KGTF): conditions and runway crosswinds.
Reverse 5 Bar M Airport (31MT) is a general aviation airport serving pilots in and around Great Falls, MT at a field elevation of 4,260 ft. 31MT has no weather station of its own. Conditions here are decoded from KGTF, about 15 nm away, the nearest reporting station, and local conditions can differ. It has one runway (03/21), the longest 1,337 ft. The nearest TAF is issued for KGTF.
No weather station at this airport: showing the nearest station KGTF, 15 nm away.
Wind from the southwest (230°) at 11 kt, visibility 10+ statute miles, no cloud data, temperature 4°C (39°F), altimeter 29.90 inHg. Conditions are Visual Flight Rules (VFR).
METAR KGTF 281353Z 23011KT 10SM CLR 04/M02 A2990 RMK AO2 SLP147 T00391017 $
What changed at KGTF (nearest station)?
Since the 1253Z (6:53 AM MDT) report, compared automatically against the latest METAR.
No significant changes since the 1253Z (6:53 AM MDT) report, conditions are holding steady.
Current pilot readout for 31MT
Based on the nearest station (KGTF), 31MT is currently VFR with winds from 230° at 11 knots, visibility 10+ statute miles, and no ceiling reported. the wind favors southwest-facing runway ends (21). Density altitude is approximately 4,000 ft (field elevation 4,260 ft). Review the latest TAF below for forecast changes before departure.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 21FAV | 1,337 ft | Turf | 10 kt head | 4 kt right |
| 03 | 1,337 ft | Turf | 10 kt tail | 4 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
31MT runways
1 physical runway · 2 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.
- Status not monitoredRunway 03/211,337 × 40 ft · TurfCurrent useno stated-runway source at 31MTWind
- 03
- 10 kt tailwind · 4 kt crosswind from left
- 21
- 10 kt headwind · 4 kt crosswind from right
no active equipment NOTAM receivedView Runway Intelligence →
“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 15→11 kt, ceiling unlimited → unlimited.
31MT weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.
Pilot reports (PIREPs) within 100 NM of 31MT
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
MSO UA /OV MSO030040/TM 1325/FL210/TP BE20/SK TOP 210 /ZLC
MSO UAHeader: reporting station and UA: a routine pilot report.OV MSO030040Location: fix or navaid, optionally with a radial and distance in NM.TM 1325Reported at 13:25 UTC.FL210Altitude: 21,000 ft MSL.TP BE20Aircraft type reporting.SK TOP 210 /ZLCSky condition: cloud bases and tops in hundreds of feet MSL.Show raw report
GTF UA /OV GTF290050/TM 1208/FL390/TP A359/RM MTN WAVE +/-10KTS /ZLC
GTF UAHeader: reporting station and UA: a routine pilot report.OV GTF290050Location: fix or navaid, optionally with a radial and distance in NM.TM 1208Reported at 12:08 UTC.FL390Altitude: 39,000 ft MSL.TP A359Aircraft type reporting.RM MTN WAVE +/-10KTS /ZLCRemarks.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at 31MT
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KGTF reported mostly VFR across 24 observations, with 0 flight-category changes. The strongest gust reached 35 kt, the lowest ceiling was 9,500 ft. Wind most often came from the SW.
Most recent change: MVFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 21
- 73%
- 03
- 27%
TAF | Terminal Aerodrome Forecast
Issued 1120Z (5:20 AM MDT)
TAF KGTF 281120Z 2812/2912 22010G16KT P6SM SCT100 BKN150 FM290100 01007KT P6SM SCT080 BKN120
New to TAFs? How to read one →
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Live crosswind meter
31MT has no weather feed online, so the wind comes from KGTF, 15 nm away.
Wind is 20° off runway 21, the end with the most headwind right now.
Have a weather station at 31MT? Help us make your field's weather available to every pilot, free. Add your field's wx station →Turf · 1,337 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Control tower
- None
- Wind indicator
- Unlighted
Airport
- Type
- General aviation airport
- FAA LID
- 31MT
- City
- Great Falls
- State
- Montana
- Country
- United States
- Elevation
- 4,260 ft
- Coordinates
- 47.2365, -111.3023
- Runways
- 1 physical runway · 2 runway ends
- Longest runway
- 1,337 ft
- Weather reporting
- Nearest station KGTF
- TAF
- Nearest KGTF
- Time zone
- America/Denver
- Next sunset
- 10h 13m
Run a flight school, FBO, or club here? Embed 31MT's live status on your website, free →
Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
5 airports25–50 NM
9 airports+3 more within 50 NM
50–100 NM
7 airports+1 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.
- Big Sky RC Modelers - Paris-Gibson School Gym , Great Falls, MT · 19 mi
- Big Sky RC Modelers - Black Horse Field , Floweree, MT · 26 mi
Pilot PIREPs for Reverse 5 Bar M Airport (31MT)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for Reverse 5 Bar M 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 31MT 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.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
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