Sioux Gateway Airport / Brigadier General Bud Day Field

KSUX / SUX

Sioux City, US

Last Updated
Apr 29, 03:52Z

Current Weather

Display Units
Recent 41 min ago
03:52Z

🌙 Night
VFR
Flight Rules
7°C
Temperature
Dewpoint: 5°C
6 kt
330°
10 SM
Visibility
9,000 ft
Ceiling
Above Ground Level
1020 hPa
QNH
Altimeter Setting

Raw METAR

METAR KSUX 290352Z AUTO 33006KT 10SM OVC090 07/05 A3012 RMK AO2 SLP203 T00720050

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 1,098 ft
OVC 9,000 ft AGL
☁️
OVC
Overcast (8/8 sky coverage)
9,000 ft
AGL (Above Ground)
10,098 ft AMSL

Weather Briefing

VFR

Sioux Gateway Airport / Brigadier General Bud Day Field is currently reporting visual flight rules (VFR) conditions with overcast skies at 9,000 feet and 10 SM visibility.

Wind Analysis

Winds are from the north-northwest (330°) at 6 knots. Runway 31 is favored with a 6-knot headwind and 2-knot crosswind component.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 9000 feet AGL (overcast), well above standard VFR minimums.

Temperature & Moisture

Temperature is 7°C (45°F) with a dewpoint of 5°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 remain VFR throughout the forecast period. Expected weather includes: Light Showers Rain. Temporary VFR conditions are forecast with Light Showers Rain between 00:00Z and 03:00Z.

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.

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

QNH
1020 hPa
Sea Level Pressure
For altitude above MSL
QFE
983 hPa
Field Pressure
Height above aerodrome (1,098 ft)
Pressure Alt
896 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 200 ft
ISA Deviation: -5.8°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KSUX 282337Z 2900/2924 31007KT P6SM SCT050 OVC100 TEMPO 2900/2903 P6SM -SHRA BKN050 OVC070 FM290500 32005KT P6SM BKN100 FM290900 VRB04KT P6SM SCT100 FM291800 28007KT P6SM SCT100 FM292200 31009G16KT P6SM SCT060 BKN100
Upcoming Changes (Next 12 Hours)
04:32Z BASE
+0h
VFR 310° 7 kt
Visibility: >6SM
Ceiling: 10,000 ft
05:00Z FM290500
+1h
VFR 320° 5 kt
Visibility: >6SM
Ceiling: 10,000 ft
09:00Z FM290900
+5h
VFR VRB 4 kt
Visibility: >6SM

24-Hour Weather Evolution

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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
Active: 31
9,002 ft 150 ft CON 136°
5.6 kt 2.1 kt
20° angle
✈️ 17/35
Active: 35
6,600 ft 150 ft ASP 181°
5.6 kt 2.1 kt
20° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KSUX

8,077 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
70.8%
MVFR
20.1%
IFR
6.4%
LIFR
2.7%

Sioux Gateway Airport / Brigadier General Bud Day Field typically experiences VFR conditions 70.8% of the time, though instrument-rated pilots will find IFR weather present approximately 9.1% of observations. Prevailing winds are from the NW averaging 10.4 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 October, September, February.

Wind Analysis

Prevailing Direction: NW (315°)
Average Speed: 10.4 kt
Maximum Recorded: 40 kt
Calm Winds: 7.6%
Direction Distribution:
E
15.1%
N
11.9%
S
11%
W
5.3%
NE
5.3%
NW
23.2%
SE
17%
SW
3.6%

Temperature Range

Average: 3.6°C
Range: -25°C to 35°C
-25°C 35°C

Visibility

Average: 9.2 SM
Below 3 SM: 2.3%
Fog Frequency: 2.9%

Best Months for VFR

October September February

Runway Wind Analysis

Runway 13/31
Favorable wind: 100%
Avg crosswind: 4.5 kt
Runway 17/35
Favorable wind: 100%
Avg crosswind: 5.3 kt

Statistics computed from 8,077 METAR observations (Sep 2025 - Apr 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.