Sioux Gateway Airport / Brigadier General Bud Day Field

KSUX / SUX

Sioux City, US

Last Updated
Jun 24, 09:35Z

Current Weather

Display Units
Fresh 7 min ago
09:35Z

☀️ Day
VFR
Flight Rules
17°C
Temperature
Dewpoint: 17°C
0 kt
--
Visibility
Ceiling
Unlimited
1018 hPa
QNH
Altimeter Setting

Raw METAR

SPECI KSUX 240935Z AUTO 00000KT 1 1/2SM BR CLR 17/17 A3006 RMK AO2 T01720172 $

Weather Briefing

VFR

Sioux Gateway Airport / Brigadier General Bud Day Field is currently reporting visual flight rules (VFR) conditions with clear skies.

Wind Analysis

Winds are calm, presenting no crosswind concerns for any runway.

Visibility & Ceiling

Skies are clear with unlimited ceiling.

Temperature & Moisture

Temperature is 17°C (63°F) with a dewpoint of 17°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

Forecast Outlook

The TAF forecast covers the next 24 hours. Conditions are expected to fluctuate between VFR and MVFR. VFR pilots should be prepared for deteriorating conditions. Expected weather includes: Light Showers Rain, Thunderstorm Rain. Temporary MVFR conditions are forecast with Thunderstorm Rain between 06:00Z and 07:00Z.

Pilot Recommendations

Conditions are favorable for visual flight. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1018 hPa
Sea Level Pressure
For altitude above MSL
QFE
981 hPa
Field Pressure
Height above aerodrome (1,098 ft)
Pressure Alt
956 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 1,460 ft
ISA Deviation: +4.2°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KSUX 240541Z 2406/2506 VRB05KT P6SM -SHRA BKN050 TEMPO 2406/2407 3SM TSRA SCT020CB OVC040 FM240900 VRB04KT P6SM SCT080 FM241500 32007KT P6SM FEW250 FM241800 31011G18KT P6SM SKC FM250100 33009KT P6SM FEW100
Upcoming Changes (Next 12 Hours)
09:42Z BASE
+0h
VFR VRB 5 kt
Visibility: >6SM
Ceiling: 5,000 ft
Light Showers Rain
15:00Z FM241500
+6h
VFR 320° 7 kt
Visibility: >6SM
18:00Z FM241800
+9h
VFR 310° 11 kt
Visibility: >6SM

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
SUX
13
31
17
35

Runway Information

Runway Length Width Surface Heading Wind Component
13/31 9,002 ft 150 ft CON 136°
0.0 kt 0.0 kt
136° angle
17/35 6,600 ft 150 ft ASP 181°
0.0 kt 0.0 kt
179° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KSUX

9,997 observations | Sep 2025 - Jun 2026

Flight Rules Distribution

VFR
73.4%
MVFR
18.2%
IFR
5.9%
LIFR
2.5%

Sioux Gateway Airport / Brigadier General Bud Day Field typically experiences VFR conditions 73.4% of the time, though instrument-rated pilots will find IFR weather present approximately 8.4% of observations. Prevailing winds are from the NW averaging 10.2 knots, with gusts recorded up to 40 knots. Temperature extremes range from -25°C to 35°C, reflecting significant seasonal variation. The best months for VFR flying are June, October, September.

Wind Analysis

Prevailing Direction: NW (315°)
Average Speed: 10.2 kt
Maximum Recorded: 40 kt
Calm Winds: 7.9%
Direction Distribution:
E
14.5%
N
11.8%
S
11.8%
W
5.7%
NE
4.6%
NW
22.1%
SE
17.8%
SW
3.7%

Temperature Range

Average: 6.4°C
Range: -25°C to 35°C
-25°C 35°C

Visibility

Average: 9.3 SM
Below 3 SM: 2%
Fog Frequency: 2.5%

Best Months for VFR

June October September

Runway Wind Analysis

Runway 13/31
Favorable wind: 100%
Avg crosswind: 4.4 kt
Runway 17/35
Favorable wind: 100%
Avg crosswind: 5.2 kt

Statistics computed from 9,997 METAR observations (Sep 2025 - Jun 2026). Data sourced from official aviation weather services. Updated daily.

Sioux Gateway Airport / Brigadier General Bud Day Field - Airport Information

Airport Details

ICAO Code: KSUX
IATA Code: SUX
Type: medium airport
Status: active
Elevation: 1,098 ft MSL

Location

City: Sioux City
Country: US
Latitude: 42.397605°
Longitude: -96.382237°
Time Zone: Etc/GMT+6

Runway Information

Runway 13/31
Length: 9,002 ft
Width: 150 ft
Surface: CON
ILS: No
Runway 17/35
Length: 6,600 ft
Width: 150 ft
Surface: ASP
ILS: No

About Sioux Gateway Airport / Brigadier General Bud Day Field

Overview

Sioux Gateway Airport serves the Sioux City metropolitan area in Iowa, strategically located in the upper Midwestern United States. As a medium-sized airport with two substantial runways, it supports regional commercial, general aviation, and potential military operations. The airport honors Brigadier General Bud Day, recognizing its connection to military aviation history.

Flying Conditions

Weather conditions at KSUX demonstrate significant variability, with Visual Flight Rules (VFR) predominating 70.2% of observed periods. Pilots can expect northwest winds averaging 9.9 knots, with temperature ranges spanning from -25°C to 33°C. Seasonal transitions in September, October, and January offer the most consistent VFR conditions, while winter and early spring present more challenging meteorological environments.

Notable Features

Situated at 1,098 feet mean sea level, Sioux Gateway Airport features two concrete and asphalt runways with substantial lengths: Runway 13/31 at 9,002 feet and Runway 17/35 at 6,600 feet. Both runways demonstrate nearly 100% wind compatibility, with minimal average crosswind components of 3.8 and 5.2 knots respectively. Visibility typically exceeds 9 statute miles, with only 3.1% of observations reporting visibility below 3 miles.

Approach Considerations

Prevailing northwest winds (315 degrees) significantly influence approach strategies, providing consistent runway alignment opportunities. The extensive 9,002-foot primary runway offers considerable operational flexibility for diverse aircraft types. Pilots should anticipate potential reduced visibility during 4.7% of observations involving fog, particularly during seasonal transition periods.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.