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Sioux Gateway Airport / Brigadier General Bud Day Field (KSUX) Aviation Weather: METAR, TAF & ATIS

As of 3:52 AM CDT, Oct 29, KSUX is currently LIFR with winds from 310° at 5 knots, visibility 1/4 statute mile, and a 100 ft ceiling. The FAA lists no ground stop or delay program for KSUX right now.

Live aviation weather for Sioux Gateway Airport / Brigadier General Bud Day Field in Sioux City, IA, including METAR, TAF, ATIS, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.

Sioux Gateway Airport / Brigadier General Bud Day Field (KSUX) is a regional airport serving Sioux City, IA at a field elevation of 1,098 ft. KSUX reports its own METAR and publishes a TAF, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has 2 physical runways (13/31, 18/36), the longest 9,002 ft. The official FAA airport diagram is at the bottom of the page.

Ask ATIS AIAsk anything about KSUX's weather, runways or delays, or search another airport.
LIFR
Observed 0852Z (3:52 AM CDT)live · refreshes every 60s
Wind
310° 5 kt
Visibility
0.25 sm
Ceiling
100 ft
Altimeter
30.15"
Temp / Dew
42°F / 6°C
feels like 38°F

Wind from the northwest (310°) at 5 kt, visibility 1/4 statute mile, sky obscured at 100 ft, temperature 6°C (42°F), altimeter 30.15 inHg. Conditions are Low IFR (LIFR), ceiling 100 ft.

Raw METAR
METAR KSUX 290852Z AUTO 31005KT 1/4SM R31/2200V2800FT FG VV001 06/05 A3015 RMK AO2 SLP210 T00560050 51017 $

What changed at KSUX?

Since the 0830Z (3:30 AM CDT) report, compared automatically against the latest METAR.

No significant changes since the 0830Z (3:30 AM CDT) report, conditions are holding steady.

Current pilot readout for KSUX

KSUX is currently LIFR with winds from 310° at 5 knots, visibility 1/4 statute mile, and a 100 ft ceiling. the wind favors northwest-facing runway ends (31). Density altitude is approximately -50 ft (field elevation 1,098 ft). Review the latest TAF below for forecast changes before departure.

KSUX by the numbers

What the long-run records say about flying here, computed for this airport alone.

0
FAA ground stops or delay programs, last 12 months

The FAA issued no ground stop or ground delay program for SUX in the 12 months to October 2026. Delays here come from the airlines or from programs at other airports rather than from SUX's own airspace.

SUX delay status →

81%
of daylight hours VFR, 2006 to 2025

KSUX reported VFR in 81% of daylight observations over 20 years, about 273 flyable days a year. July is the most reliable month and December the least, with IFR or worse 15% of the time. When conditions drop it is usually a mix of low ceilings (under 1,000 ft 5% of hours) and low visibility (under 3 miles 4%).

35%
of windy hours favor runway 13

Over 20 years of hourly winds, runway 13 had the best headwind 35% of the time, runway 31 29%, and winds were calm 10% of hours. Winds most often blow from the northwest. Crosswind on the best available runway topped 15 kt in under 1% of hours.

40
snow days a year

Snow fell on about 40 days a year and freezing rain or drizzle on 4. From December to February KSUX was IFR or worse 13% of the time, against 3% from June to August.

45
thunderstorm days a year

Thunderstorms were reported on about 45 days a year. 56% of storm hours fall in June, July and August, peaking in June when storms were in the air 2% of the time.

2,876 ft
typical summer-afternoon density altitude

Field elevation is 1,098 ft, but on a median summer afternoon the air performs like 2,876 ft, 1,778 ft higher. Plan for a longer takeoff roll and a weaker climb from June to August.

Sources: FAA ATCSCC advisories, hourly observations 2006 to 2025 and the per-runway wind climatology 2006 to 2025. Historical summaries, not a forecast: check the current METAR, TAF and a briefing before flight.

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.

RunwayHead / TailCrosswind
31FAV5 kt head1 kt left
363 kt head4 kt left
183 kt tail4 kt right
135 kt tail1 kt right

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

KSUX runways

2 physical runways · 4 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.

  • Runway 13/31
    9,002 × 150 ft · CON
    Restricted (NOTAM)
    Current use
    no stated-runway source at KSUX
    Wind
    13
    5 kt tailwind · 1 kt crosswind from right
    31
    5 kt headwind · 1 kt crosswind from left
    1 active equipment NOTAMView Runway Intelligence →
  • Runway 18/36
    6,401 × 100 ft · ASP
    Restricted (NOTAM)
    Current use
    no stated-runway source at KSUX
    Wind
    18
    3 kt tailwind · 4 kt crosswind from right
    36
    3 kt headwind · 4 kt crosswind from left
    2 active equipment NOTAMsView 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.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
0102109Z22Z08Z

Over the last 23 h: wind 6→5 kt, ceiling unlimited → 100 ft.

KSUX weather radar

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

Loading…
Loading radar…

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.

Recent aviation weather trends at KSUX

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KSUX reported mostly VFR across 32 observations, with 10 flight-category changes. The strongest gust reached 18 kt, the lowest ceiling was 100 ft. Wind most often came from the NW.

Last 24 hours
VFR 63%MVFR 19%IFR 6%LIFR 13%
Wind avg/max: 8/13 kt
Max gust: 18 kt
Lowest ceiling: 100 ft
Lowest vis: -
Prevailing wind: NW
Category changes: 10

Most recent change: IFR → LIFR

Last 7 days
VFR 81%MVFR 17%IFR 2%LIFR 1%
Wind avg/max: 9/20 kt
Max gust: 31 kt
Lowest ceiling: 500 ft
Lowest vis: 0.25 sm
Prevailing wind: SE
Category changes: 23

Most recent change: VFR → LIFR

Wind-favored runway - past 30 days

Share of hours each runway had the most headwind. From wind reports, not ATC assignments.

13
42%
31
21%
18
19%
36
18%

TAF | Terminal Aerodrome Forecast

Issued 0530Z (12:30 AM CDT)

TAF KSUX 290530Z 2906/3006 VRB03KT P6SM SKC TEMPO 2911/2914 3SM BR SCT005 FM291800 12008KT P6SM FEW120

New to TAFs? How to read one →

Get KSUX weather alerts in Telegram

Stop refreshing aviation weather manually. Track KSUX in ATIS Alerts and get notified when a new METAR changes the picture: a category drop, or wind and ceiling moving toward your minimums.

Track KSUX free on Telegram

Live KSUX Weather

Live crosswind meter

Measured by KSUX's own weather station.

N31135 kt
Headwind
5 kt
Crosswind (from the left)
1 kt

Wind is 6° off runway 31, the end with the most headwind right now.

Concrete · 9,002 ft. Headings from FAA runway data. Not for navigation.

Field aerial

North up

Aerial photo of Sioux Gateway Airport / Brigadier General Bud Day Field (KSUX) with runway 13/31, 18/36 marked
N ↑

Runway 13/31, 18/36 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

Fuel
100LL · Jet A
Attended
Mon-Fri 0600-0000 local; Sat-Sun 0600-0000 local
Repairs
Airframe & engine, major
Oxygen
Bottled, high & low pressure · Bulk, high & low pressure
Transient parking
Tie-downs · Hangars
Landing fee
No
Other services
Air freight · Air ambulance · Charter · Flight instruction · Aircraft rental · Aircraft sales · Annual surveying
Control tower
Yes
Wind indicator
Lighted

Airport

Type
Regional airport
ICAO
KSUX
IATA
SUX
FAA LID
SUX
City
Sioux City
State
Iowa
Country
United States
Elevation
1,098 ft
Coordinates
42.3976, -96.3822
Runways
2 physical runways · 4 runway ends
Longest runway
9,002 ft
Weather reporting
Reports METAR
TAF
Published
ATIS
119.45 MHz
CTAF
118.7 MHz
Time zone
America/Chicago
Next sunset
14h 20m

Is there a ground stop at SUX today? Delay status and history →

Run a flight school, FBO, or club here? Embed KSUX's live status on your website, free →

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 Iowa airports →

Historical Flying Weather at KSUX

2006–2025 · ATIS Alerts Flying Weather Index

Based on historical observations from 2006–2025, KSUX reported VFR conditions during about 81.2% of valid daylight observations, with an estimated 273 VFR flying days a year. July had the most VFR weather; December had the most instrument conditions. Surface winds averaged 8.6 kt, calm 8.1% of the time.

VFR Score
48
Wind Score
36
Reliability Score
39
National VFR rank
#788 of 1,400
Regional rank
#92
State rank
#10
Full historical breakdown
Daylight VFR
81.2%
MVFR
12.2%
IFR
4.7%
LIFR
2.3%
Est. VFR days/yr
273
Most VFR month
July
Fewest VFR month
December
Median ceiling
3,100 ft
Median visibility
10 sm
Calm wind
8.1%
Median wind
8 kt
Gusty hours
15.9%
Crosswind >15 kt
0.3%
Fog/mist days/yr
139
Thunderstorm days/yr
45
Summer density alt
2,876 ft

Flight category by month

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDec
VFRMVFRIFRLIFR
KSUX monthly flight-category distribution, 2006–2025
MonthVFR %MVFR %IFR %LIFR %
Jan68.417.58.55.7
Feb75.115.16.63.3
Mar73.416.66.73.4
Apr80.413.94.80.9
May82.613.63.30.6
Jun91.06.52.00.4
Jul91.65.91.41.1
Aug87.18.22.91.8
Sep87.58.42.51.6
Oct83.210.94.51.3
Nov82.511.93.81.7
Dec67.817.79.25.3

Average wind by month

0612JanFebMarAprMayJunJulAugSepOctNovDec
KSUX average wind by month, 2006–2025
MonthMean wind (kt)
Jan9.3 kt
Feb9.3 kt
Mar10.1 kt
Apr10.9 kt
May9.2 kt
Jun8.0 kt
Jul6.6 kt
Aug6.5 kt
Sep7.3 kt
Oct8.4 kt
Nov8.9 kt
Dec9.1 kt

Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.

KSUX airport diagram

Official FAA taxiway and runway layout. Tap to zoom.

Official FAA airport diagram · d-TPP cycle 2611 · Not for navigation. Download the official FAA PDF ↗

Customize your SUX shirt or mug

SUX's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.

Shop SUX merch

Pilot PIREPs for Sioux Gateway Airport / Brigadier General Bud Day Field (KSUX)

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 Sioux Gateway Airport / Brigadier General Bud Day Field, 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 KSUX 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.

No D-ATIS at this airport, showing METAR.

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