Big Southern Butte Airport (U46) Area Aviation Weather & Runway Winds
As of 10:53 AM MDT, Oct 27, based on the nearest station (KPIH), U46 is currently VFR with winds from 250° at 7 knots, visibility 10+ statute miles, and a 12,000 ft ceiling.
Aviation weather near Big Southern Butte Airport in Blackfoot, ID, decoded from the nearest reporting station (KPIH): conditions and runway crosswinds.
Big Southern Butte Airport (U46) is a general aviation airport serving pilots in and around Blackfoot, ID at a field elevation of 5,073 ft. U46 has no weather station of its own. Conditions here are decoded from KPIH, about 37 nm away, the nearest reporting station, and local conditions can differ. It has one runway (01/19), the longest 2,600 ft. The nearest TAF is issued for KPIH.
No weather station at this airport: showing the nearest station KPIH, 37.3 nm away.
Wind from the west-southwest (250°) at 7 kt, visibility 10+ statute miles, broken clouds at 12,000 ft, temperature 6°C (42°F), altimeter 30.06 inHg. Conditions are Visual Flight Rules (VFR), ceiling 12,000 ft.
METAR KPIH 271653Z 25007KT 10SM BKN120 06/01 A3006 RMK AO2 SLP177 T00560011
What changed at KPIH (nearest station)?
Since the 1553Z (9:53 AM MDT) report, compared automatically against the latest METAR.
No significant changes since the 1553Z (9:53 AM MDT) report, conditions are holding steady.
Current pilot readout for U46
Based on the nearest station (KPIH), U46 is currently VFR with winds from 250° at 7 knots, visibility 10+ statute miles, and a 12,000 ft ceiling. the wind favors southwest-facing runway ends (19). Density altitude is approximately 5,000 ft (field elevation 5,073 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 |
|---|---|---|---|---|
| 19FAV | 2,600 ft | DIRT-F | 5 kt head | 5 kt right |
| 01 | 2,600 ft | DIRT-F | 5 kt tail | 5 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
U46 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 01/192,600 × 110 ft · DIRT-FCurrent useno stated-runway source at U46Wind
- 01
- 5 kt tailwind · 5 kt crosswind from left
- 19
- 5 kt headwind · 5 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 22→7 kt, ceiling unlimited → 12,000 ft.
U46 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 U46
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
PIH UA /OV PIH080030/TM 1655/FL200/TP E75L/TA M06/IC TRACE RIME 200 /ZLC
PIH UAHeader: reporting station and UA: a routine pilot report.OV PIH080030Location: fix or navaid, optionally with a radial and distance in NM.TM 1655Reported at 16:55 UTC.FL200Altitude: 20,000 ft MSL.TP E75LAircraft type reporting.TA M06Outside air temperature, °C.IC TRACE RIME 200 /ZLCIcing: trace rime 200 /zlc.Show raw report
TWF UA /OV TWF017009/TM 1628/FL230/TP PRM1/TA M25/IC LGT RIME/RM FL230-220 DURD /ZLC
TWF UAHeader: reporting station and UA: a routine pilot report.OV TWF017009Location: fix or navaid, optionally with a radial and distance in NM.TM 1628Reported at 16:28 UTC.FL230Altitude: 23,000 ft MSL.TP PRM1Aircraft type reporting.TA M25Outside air temperature, °C.IC LGT RIMEIcing: light rime.RM FL230-220 DURD /ZLCRemarks.Show raw report
BOI UA /OV BOI111141/TM 1541/FL350/TP BCS1/TB NEG/ZLC
BOI UAHeader: reporting station and UA: a routine pilot report.OV BOI111141Location: fix or navaid, optionally with a radial and distance in NM.TM 1541Reported at 15:41 UTC.FL350Altitude: 35,000 ft MSL.TP BCS1Aircraft type reporting.TB NEG/ZLCTurbulence: none reported /zlc.Show raw report
SMN UA /OV LKT180025/TM 1537/FL330/TP A21N/TB LGT CHOP/ZLC
SMN UAHeader: reporting station and UA: a routine pilot report.OV LKT180025Location: fix or navaid, optionally with a radial and distance in NM.TM 1537Reported at 15:37 UTC.FL330Altitude: 33,000 ft MSL.TP A21NAircraft type reporting.TB LGT CHOP/ZLCTurbulence: light chop/zlc.Show raw report
BOI UA /OV BOI115109/TM 1536/FL370/TP B739/TB NEG/ZLC
BOI UAHeader: reporting station and UA: a routine pilot report.OV BOI115109Location: fix or navaid, optionally with a radial and distance in NM.TM 1536Reported at 15:36 UTC.FL370Altitude: 37,000 ft MSL.TP B739Aircraft type reporting.TB NEG/ZLCTurbulence: none reported /zlc.Show raw report
TWF UA /OV TWF320020/TM 1332/FL260/TP B738/SK TOP 255/IC LGT RIME /ZLC
TWF UAHeader: reporting station and UA: a routine pilot report.OV TWF320020Location: fix or navaid, optionally with a radial and distance in NM.TM 1332Reported at 13:32 UTC.FL260Altitude: 26,000 ft MSL.TP B738Aircraft type reporting.SK TOP 255Sky condition: cloud bases and tops in hundreds of feet MSL.IC LGT RIME /ZLCIcing: light rime /zlc.Show raw report
TWF UA /OV TWF310040/TM 1306/FL250/TP B39M/SK TOP 245/WX SN/IC TRACE RIME /ZLC
TWF UAHeader: reporting station and UA: a routine pilot report.OV TWF310040Location: fix or navaid, optionally with a radial and distance in NM.TM 1306Reported at 13:06 UTC.FL250Altitude: 25,000 ft MSL.TP B39MAircraft type reporting.SK TOP 245Sky condition: cloud bases and tops in hundreds of feet MSL.WX SNWeather and flight visibility observed.IC TRACE RIME /ZLCIcing: trace rime /zlc.Show raw report
TWF UA /OV TWF310040/TM 1245/FL260/TP E75/SK TOP 240/IC TRACE RIME BLO 240/ZLC
TWF UAHeader: reporting station and UA: a routine pilot report.OV TWF310040Location: fix or navaid, optionally with a radial and distance in NM.TM 1245Reported at 12:45 UTC.FL260Altitude: 26,000 ft MSL.TP E75Aircraft type reporting.SK TOP 240Sky condition: cloud bases and tops in hundreds of feet MSL.IC TRACE RIME BLO 240/ZLCIcing: trace rime blo 240/zlc.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at U46
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KPIH reported mostly VFR across 26 observations, with 2 flight-category changes. The strongest gust reached 34 kt, the lowest ceiling was 2,900 ft. Wind most often came from the SW.
Most recent change: MVFR → VFR
Most recent change: MVFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 19
- 76%
- 01
- 24%
TAF | Terminal Aerodrome Forecast
Issued 1120Z (5:20 AM MDT)
TAF KPIH 271120Z 2712/2812 22010KT P6SM SCT080 OVC120 FM272000 VRB06KT P6SM SCT100 BKN120 FM280100 VRB06KT P6SM VCSH SCT040 BKN120 FM280600 21010KT P6SM SCT020
New to TAFs? How to read one →
Get U46 weather alerts in Telegram
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Live crosswind meter
U46 has no weather feed online, so the wind comes from KPIH, 37 nm away.
Wind is 41° off runway 19, the end with the most headwind right now.
Have a weather station at U46? Help us make your field's weather available to every pilot, free. Add your field's wx station →Dirt · 2,600 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 01/19 drawn from FAA threshold coordinates.
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
- Attended
- Unattended
- Transient parking
- Tie-downs
- Landing fee
- No
- Control tower
- None
- Wind indicator
- Unlighted
Airport
- Type
- General aviation airport
- FAA LID
- U46
- City
- Blackfoot
- State
- Idaho
- Country
- United States
- Elevation
- 5,073 ft
- Coordinates
- 43.4325, -113.0556
- Runways
- 1 physical runway · 2 runway ends
- Longest runway
- 2,600 ft
- Weather reporting
- Nearest station KPIH
- TAF
- Nearest KPIH
- Time zone
- America/Boise
- Sunset in
- 7h 28m
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Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
3 airports25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
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U46's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for Big Southern Butte Airport (U46)
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 Big Southern Butte 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 U46 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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