Beaufort MCAS - Merritt Field

KNBC

Beaufort, US

Last Updated
Mar 5, 04:56Z

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 42 min ago
04:56Z

🌙 Night
VFR
Flight Rules
14°C
Temperature
Dewpoint: 13°C
0 kt
10 SM
Visibility
Ceiling
Unlimited
1025 hPa
QNH
Altimeter Setting

Raw METAR

METAR KNBC 050456Z AUTO 00000KT 10SM CLR 14/13 A3026 RMK AO2 SLP248 T01440133 402670106
QNH
1025 hPa
Sea Level Pressure
For altitude above MSL
QFE
1024 hPa
Field Pressure
Height above aerodrome (37 ft)
Pressure Alt
-316 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -427 ft
ISA Deviation: -0.9°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KNBC 0503/0603 VRB05KT 9999 SKC QNH3024INS FM050600 VRB06KT 4800 BR OVC009 QNH3023INS TEMPO 0509/0515 1000 FG BECMG 0516/0518 18005KT 9999 NSW SCT040 QNH3021INS TX25/0521Z TN12/0510Z
Upcoming Changes (Next 12 Hours)
05:37Z BASE
+0h
VFR VRB 5 kt
Visibility: 10+ km
06:00Z FM050600
+1h
IFR VRB 6 kt
Visibility: 4.8 km
Ceiling: 900 ft
Mist
09:00Z TEMPO
+4h
LIFR
Visibility: 1 km
Fog
16:00Z BECMG
+11h
VFR 180° 5 kt
Visibility: 10+ km

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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  • • Click legend items to toggle data series
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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
NBC
05
23
10
28
14
32
18
36

Runway Information

Runway Length Width Surface Heading Wind Component
05/23 12,202 ft 200 ft PEM 41°
0.0 kt 0.0 kt
41° angle
10/28 6,425 ft 150 ft ASP 90°
0.0 kt 0.0 kt
90° angle
14/32 7,999 ft 200 ft PEM 135°
0.0 kt 0.0 kt
135° angle
18/36 3,941 ft 150 ft ASP 180°
0.0 kt 0.0 kt
180° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KNBC

7,070 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
72.7%
MVFR
11.5%
IFR
8.2%
LIFR
7.7%

Beaufort MCAS - Merritt Field typically experiences VFR conditions 72.7% of the time, though instrument-rated pilots will find IFR weather present approximately 15.9% of observations. Prevailing winds are from the N averaging 6.8 knots. Calm conditions occur 22.5% of the time. Temperature extremes range from -7°C to 36°C, reflecting significant seasonal variation. Low visibility conditions (below 3 SM) occur in 5.5% of weather observations. The best months for VFR flying are November, October, September.

Wind Analysis

Prevailing Direction: N (0°)
Average Speed: 6.8 kt
Maximum Recorded: 24 kt
Calm Winds: 22.5%
Direction Distribution:
N
14.9%
NE
14.1%
E
4.9%
SE
2.7%
S
8.1%
SW
9.2%
W
11.7%
NW
11.8%

Temperature Range

Average: 13.6°C
Range: -7°C to 36°C
-7°C 36°C

Visibility

Average: 8 SM
Below 3 SM: 5.5%
Fog Frequency: 2.9%

Best Months for VFR

November October September

Runway Wind Analysis

Runway 05/23
Favorable wind: 100%
Avg crosswind: 4 kt
Runway 10/28
Favorable wind: 100%
Avg crosswind: 4.6 kt
Runway 14/32
Favorable wind: 100%
Avg crosswind: 4.5 kt
Runway 18/36
Favorable wind: 100%
Avg crosswind: 4.2 kt

Statistics computed from 7,070 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

Beaufort MCAS - Merritt Field - Airport Information

Airport Details

ICAO Code: KNBC
Type: medium airport
Status: active
Elevation: 37 ft MSL

Location

City: Beaufort
Country: US
Latitude: 32.477402°
Longitude: -80.723198°
Time Zone: Etc/GMT+5

Runway Information

Runway 05/23
Length: 12,202 ft
Width: 200 ft
Surface: PEM
ILS: No
Runway 10/28
Length: 6,425 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 14/32
Length: 7,999 ft
Width: 200 ft
Surface: PEM
ILS: No
Runway 18/36
Length: 3,941 ft
Width: 150 ft
Surface: ASP
ILS: No

About Beaufort MCAS - Merritt Field

Beaufort MCAS - Merritt Field 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

Beaufort MCAS - Merritt Field serves as a military airfield located in Beaufort, South Carolina. As a medium airport with four runways ranging from 3,941 to 12,202 feet, the facility supports significant marine corps aviation operations at an elevation of 37 feet above mean sea level.

Flying Conditions

Pilots can expect predominantly VFR conditions 75% of the time, with only 15.3% of observations presenting marginal or instrument flight conditions. Wind patterns are consistently from the northeast at an average of 6.6 knots, with temperatures ranging from -6°C to 36°C. October, November, and September offer the most stable and favorable flying weather, characterized by high visibility and minimal meteorological restrictions.

Notable Features

The airport features four runways with different surface types: two paved with emergency (PEM) surfaces and two asphalt (ASP) surfaces. All runways demonstrate 100% favorable wind alignments, with modest average crosswind components between 3.7 and 4.6 knots. The low elevation and coastal location suggest minimal terrain challenges for approach and departure procedures.

Approach Considerations

With excellent wind coverage and multiple runway options, pilots have flexibility in selecting optimal approach paths. Runway 05/23 offers the longest surface at 12,202 feet, providing ample landing and takeoff space. Visibility averages 8 statute miles, though pilots should be prepared for occasional reduced visibility events, with 6.2% of observations showing less than 3 miles of visibility and 3% experiencing fog conditions.

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.