Killeen Regional Airport / Robert Gray Army Airfield

KGRK / GRK

Fort Cavazos, US

Last Updated
May 15, 06:55Z

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
Recent 38 min ago
06:55Z

☀️ Day
VFR
Flight Rules
20°C
Temperature
Dewpoint: 16°C
6 kt
160°
10 SM
Visibility
Ceiling
Unlimited
1012 hPa
QNH
Altimeter Setting

Raw METAR

METAR KGRK 150655Z AUTO 16006KT 10SM CLR 20/16 A2989 RMK AO2 SLP110 T02020158

Weather Briefing

VFR

Killeen Regional Airport / Robert Gray Army Airfield is currently reporting visual flight rules (VFR) conditions with clear skies and 10 SM visibility.

Wind Analysis

Winds are from the south-southeast (160°) at 6 knots. Runway 15/33 is favored with a 6-knot headwind and 1-knot crosswind component.

Visibility & Ceiling

Visibility is 10 SM. Skies are clear with unlimited ceiling.

Temperature & Moisture

Temperature is 20°C (68°F) with a dewpoint of 16°C. The narrow temperature-dewpoint spread suggests high humidity and potential for visibility restrictions, especially during cooling periods.

Forecast Outlook

The TAF forecast covers the next 30 hours. Conditions are expected to fluctuate between VFR and MVFR. VFR pilots should be prepared for deteriorating conditions. Temporary MVFR conditions are forecast between 11:00Z and 15:00Z.

Pilot Recommendations

Conditions are favorable for visual flight. 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
1012 hPa
Sea Level Pressure
For altitude above MSL
QFE
978 hPa
Field Pressure
Height above aerodrome (1,015 ft)
Pressure Alt
1,053 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 1,897 ft
ISA Deviation: +7.0°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KGRK 150000Z 1500/1606 15012KT 9999 SCT130 SCT250 QNH2987INS BECMG 1510/1511 17010G15KT 9999 FEW008 SCT012 SCT130 BKN250 QNH2989INS TEMPO 1511/1515 SCT008 BKN012 BECMG 1516/1517 17015G25KT 9999 SCT025 BKN130 BKN250 510009 QNH2979INS BECMG 1600/1601 17012G18KT 9999 SCT130 BKN250 QNH2980INS BECMG 1604/1605 16010G15KT 9999 VCTS BKN020CB BKN250 QNH2987INS TX32/1521Z TN19/1511Z
Upcoming Changes (Next 12 Hours)
07:32Z BASE
+0h
VFR 150° 12 kt
Visibility: 10+ km
10:00Z BECMG
+3h
VFR 170° 10 kt
Visibility: 10+ km
Ceiling: 25,000 ft
11:00Z TEMPO
+4h
MVFR
Ceiling: 1,200 ft
16:00Z BECMG
+9h
VFR 170° 15 kt
Visibility: 10+ km
Ceiling: 13,000 ft

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
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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
GRK
15 ✈️
33

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 15/33
Active: 15
10,000 ft 200 ft PEM 157°
5.9 kt 1.0 kt
10° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KGRK

7,812 observations | Sep 2025 - May 2026

Flight Rules Distribution

VFR
64.4%
MVFR
21.7%
IFR
7.5%
LIFR
6.3%

Killeen Regional Airport / Robert Gray Army Airfield typically experiences VFR conditions 64.4% of the time, though instrument-rated pilots will find IFR weather present approximately 13.8% of observations. Prevailing winds are from the S averaging 9 knots, with gusts recorded up to 36 knots. Calm conditions occur 11.1% of the time. Temperature extremes range from -9°C to 37°C, reflecting significant seasonal variation. The best months for VFR flying are September, October, February.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 9 kt
Maximum Recorded: 36 kt
Calm Winds: 11.1%
Direction Distribution:
N
16.5%
NE
7.4%
E
6.5%
SE
20.9%
S
27.9%
SW
3.3%
W
2.9%
NW
3.4%

Temperature Range

Average: 18.3°C
Range: -9°C to 37°C
-9°C 37°C

Visibility

Average: 8.8 SM
Below 3 SM: 1.3%
Fog Frequency: 0.6%

Best Months for VFR

September October February

Runway Wind Analysis

Runway 15/33
Favorable wind: 100%
Avg crosswind: 3.9 kt

Statistics computed from 7,812 METAR observations (Sep 2025 - May 2026). Data sourced from official aviation weather services. Updated daily.

Killeen Regional Airport / Robert Gray Army Airfield - Airport Information

Airport Details

ICAO Code: KGRK
IATA Code: GRK
Type: medium airport
Status: active
Elevation: 1,015 ft MSL

Location

City: Fort Cavazos
Country: US
Latitude: 31.067200°
Longitude: -97.828903°
Time Zone: Etc/GMT+7

Runway Information

Runway 15/33
Length: 10,000 ft
Width: 200 ft
Surface: PEM
ILS: No

About Killeen Regional Airport / Robert Gray Army Airfield

Killeen Regional Airport / Robert Gray Army Airfield 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

Killeen Regional Airport / Robert Gray Army Airfield serves as a strategic medium-sized airport located at Fort Cavazos, Texas, with an elevation of 1,015 feet MSL. The airport supports both military and civilian aviation operations, positioned centrally in Texas with coordinates 31.067200, -97.828903. Its primary runway 15/33 provides a substantial 10,000-foot paved and marked (PEM) surface.

Flying Conditions

Weather conditions at KGRK are predominantly visual flight rules (VFR), with 70.8% of observations supporting clear flying conditions. Seasonal temperatures range from -3°C to 37°C, with an average of 18.2°C, offering relatively moderate operational environments. Wind patterns are primarily from the south at 180°, averaging 7.9 knots, with maximum gusts up to 36 knots and calm conditions occurring 15.7% of the time.

Notable Features

The airport's single runway 15/33 demonstrates excellent wind alignment, with favorable wind conditions 100% of the time and an average crosswind component of just 3.8 knots. Its strategic location and substantial runway length make it suitable for a variety of aircraft types, from small general aviation to larger military and commercial platforms. The surrounding terrain is typical of central Texas, with relatively flat topography.

Approach Considerations

September, October, and November represent the best months for VFR flying, with consistently favorable weather conditions. Pilots should anticipate mostly clear skies, with visibility averaging 8.9 statute miles and limited occurrences of restricted visibility (below 3SM in only 1.9% of observations). The predominant southern winds suggest runway 33 may offer slightly more favorable approach conditions during typical wind patterns.

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.