Grand Forks Air Force Base

KRDR / RDR

Grand Forks, US

Last Updated
Jun 10, 05:41Z

Military Airport

Restricted

This is a U.S. military installation. Civil aircraft operations are generally prohibited without prior authorization.

Access Notes:

Most military airfields closed to civil traffic; some joint-use exceptions exist

Consult official AIP (FAA AIP GEN 3.3) for current access procedures and restrictions.

Current Weather

Display Units
Aging 1 hour ago
05:41Z

☀️ Day
VFR
Flight Rules
26°C
Temperature
Dewpoint: 16°C
22 kt
270° G36 kt
10 SM
Visibility
11,000 ft
Ceiling
Above Ground Level
998 hPa
QNH
Altimeter Setting

Raw METAR

SPECI KRDR 100541Z AUTO 27022G36KT 10SM FEW033 SCT080 BKN110 26/16 A2948 RMK AO2 WSHFT 35 LTG DSNT SW-N PRESRR SLP980 $

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 913 ft
FEW 3,300 ft AGL
SCT 8,000 ft AGL
BKN 11,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
3,300 ft
AGL (Above Ground)
4,213 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
8,000 ft
AGL (Above Ground)
8,913 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
11,000 ft
AGL (Above Ground)
11,913 ft AMSL

Weather Briefing

VFR

Grand Forks Air Force Base is currently reporting visual flight rules (VFR) conditions with broken clouds at 11,000 feet and 10 SM visibility. Note: This observation is 1.6 hours old and conditions may have changed.

Wind Analysis

Winds are from the west (270°) at 22 knots with gusts to 36 knots. Runway 35 is favored with a 4-knot headwind and 22-knot crosswind component (gusting to 35 knots crosswind). These are strong winds that may exceed crosswind limits for light aircraft.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 11000 feet AGL (broken), well above standard VFR minimums.

Temperature & Moisture

Temperature is 26°C (79°F) with a dewpoint of 16°C, indicating moderate moisture conditions.

Forecast Outlook

The TAF forecast covers the next 27 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan. Expected weather includes: Heavy Thunderstorm RAGR, Light Thunderstorm Rain. Winds are forecast to reach up to 45 knots during the period. Expect variable wind speeds ranging from 9 to 45 knots. Temporary MVFR conditions are forecast between 00:00Z and 02:00Z. Temporary LIFR conditions are forecast with Light Thunderstorm Rain between 14:00Z and 17:00Z.

Pilot Recommendations

Conditions are favorable for visual flight. Gusty conditions may exceed demonstrated crosswind components for many general aviation aircraft. Check your aircraft's limitations. 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
998 hPa
Sea Level Pressure
For altitude above MSL
QFE
968 hPa
Field Pressure
Height above aerodrome (913 ft)
Pressure Alt
1,371 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 2,910 ft
ISA Deviation: +12.8°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF AMD KRDR 092312Z 0923/1102 15030G40KT 9999 SCT080 510002 QNH2950INS TEMPO 1000/1002 VCTS OVC050CB BECMG 1002/1003 15045G55KT 1600 +TSRAGR OVC030CB QNH2950INS BECMG 1007/1008 18009KT 9999 NSW SCT090 QNH2946INS BECMG 1012/1013 27010G20KT 9999 VCTS BKN070CB QNH2945INS TEMPO 1014/1017 27020G30KT 8000 -TSRA BKN050CB TX33/0923Z TN17/1011Z LAST NO AMDS AFT 0923 NEXT 1012
Upcoming Changes (Next 12 Hours)
07:14Z BASE
+0h
VFR 150° 30 kt
Visibility: 10+ km
12:00Z BECMG
+5h
MVFR 270° 10 kt
Visibility: 10+ km
Ceiling: 7,000 ft
14:00Z TEMPO
+7h
LIFR 270° 20 kt
Visibility: 1.012 km
Ceiling: 5,000 ft
Light Thunderstorm Rain

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
Chart Features
  • • Hover for exact values and timestamps
  • • Click legend items to toggle data series
  • • Zoom and pan for detailed analysis
  • • Units automatically converted to preferences
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
RDR
17
35 ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 17/35
Active: 35
12,350 ft 150 ft ASP 180°
3.8 kt 21.7 kt
80° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KRDR

8,810 observations | Sep 2025 - Jun 2026

Flight Rules Distribution

VFR
59.6%
MVFR
21.7%
IFR
10.5%
LIFR
8.1%

Grand Forks Air Force Base is frequently affected by reduced visibility conditions, with VFR weather only 59.6% of the time and IFR/LIFR conditions occurring in 18.6% of observations. Prevailing winds are from the N averaging 10.9 knots, with gusts recorded up to 40 knots. Temperature extremes range from -29°C to 36°C, reflecting significant seasonal variation. The best months for VFR flying are June, October, May.

Wind Analysis

Prevailing Direction: N (0°)
Average Speed: 10.9 kt
Maximum Recorded: 40 kt
Calm Winds: 8.2%
Direction Distribution:
E
4%
N
28%
S
16.5%
W
6.1%
NE
10.4%
NW
12.4%
SE
4.6%
SW
9.9%

Temperature Range

Average: 0.1°C
Range: -29°C to 36°C
-29°C 36°C

Visibility

Average: 9.4 SM
Below 3 SM: 1.3%
Fog Frequency: 1.4%

Best Months for VFR

June October May

Runway Wind Analysis

Runway 17/35
Favorable wind: 100%
Avg crosswind: 5.1 kt

Statistics computed from 8,810 METAR observations (Sep 2025 - Jun 2026). Data sourced from official aviation weather services. Updated daily.

Grand Forks Air Force Base - Airport Information

Airport Details

ICAO Code: KRDR
IATA Code: RDR
Type: medium airport
Status: active
Elevation: 913 ft MSL

Location

City: Grand Forks
Country: US
Latitude: 47.961102°
Longitude: -97.401199°
Time Zone: Etc/GMT+6

Runway Information

Runway 17/35
Length: 12,350 ft
Width: 150 ft
Surface: ASP
ILS: No

About Grand Forks Air Force Base

Grand Forks Air Force Base is a military facility. Civilian access may be restricted or require Prior Permission (PPR). Pilots should consult the US AIP for current access procedures and restrictions.

Overview

Grand Forks Air Force Base (KRDR) is a medium-sized military airport located in North Dakota at 913 feet mean sea level. Situated at coordinates 47.961102, -97.401199, the base serves strategic military aviation operations in the northern Great Plains region.

Flying Conditions

Weather conditions at KRDR exhibit significant variability, with Visual Flight Rules (VFR) prevailing 55.7% of the time. Pilots should anticipate potential instrument meteorological conditions, with MVFR conditions occurring 25.3% of observations and IFR/LIFR states combining for nearly 19% of recorded periods. Temperature ranges dramatically from -29°C to 36°C, requiring comprehensive preflight weather assessment.

Notable Features

The airport features a single runway (17/35) with an extensive 12,350-foot asphalt surface, capable of supporting large aircraft operations. Prevailing winds consistently originate from the north (0°), with an average speed of 10.5 knots and occasional gusts reaching 40 knots. Calm wind conditions occur approximately 8.9% of the time.

Approach Considerations

Runway 17/35 demonstrates favorable wind alignment, with wind conditions supporting 100% of approaches. Average crosswind components remain relatively moderate at 5 knots. Visibility typically remains excellent, averaging 9.3 statute miles, with minimal instances of restricted visibility (below 3SM occurring in only 1.6% of observations).

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.