WxDecoder

KGNB METAR Granby Grand County Airport

Granby, ColoradoElevation 8,203 ftSmall airport
CURRENT STATUS
MVFR14 min old
Ceiling 2,500 ft, visibility 10 SM.
FLIGHT CATEGORY
MVFR
ceiling & visibility
WIND
300@4
steady
VISIBILITY
10 SM
16.1 km
CEILING
2,500 ft
lowest BKN/OVC
DENSITY ALT
8,297 ft
+94 ft vs field
CURRENT METAR

Decoded observation

Observed 0815Z (2:15 AM local) · 14 min old

KGNB is currently MVFR. Winds are from the northwest at 4 knots. Visibility is 10 statute miles. The ceiling is 2,500 feet AGL. Reported weather: light drizzle. The main issue is ceiling 2500 ft agl (mvfr).

WIND
300° at 4 kt
Steady.
VISIBILITY
10 statute miles
16.1 km, good.
CEILING & SKY
Ceiling 2,500 ft
Lowest broken or overcast layer.
TEMP / DEWPOINT
3°C / 2°C
37°F / 36°F. 1°C spread.
ALTIMETER
30.33 inHg
1027.1 hPa, above standard.
WEATHER & HAZARDS
LOW CIG
Ceiling 2500 ft AGL (MVFR).

Codes in this report: AUTO SCT BKN OVC RMK AO2

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED
AO2
automated station with a precipitation discriminator (can tell rain from snow)
LTG DSNT SE
lightning distant (more than 10 SM away) to the southeast
T00300023
precise temperature 3.0°C, dew point 2.3°C
SUGGESTED RISK · TRAINING USE

Suggested risk level: Moderate

›Conditions are MVFR.
›No TAF available for this airport.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category MVFR, wind from 300° at 4 kt, visibility 10 SM, ceiling 2,500 ft. Forecast suggests monday chance rain and snow showers then mostly sunny, high near 50F, low near 20F, 62% chance of precipitation. Key risks: high density altitude; strong winds in the forecast.

PILOT WEATHER NOTES
High density altitudeMETAR
Density altitude about 8,297 ft (field elevation 8,203 ft). Expect reduced climb performance and a longer takeoff roll.
Strong winds in the forecastWeather.gov
Tuesday: winds up to 25 kt. Re-check crosswind components closer to departure.
DayConditionsTemp FWindGustsPrecipPilot note
Monday Chance Rain And Snow Showers then Mostly Sunny 50/20 WSW 9 kt 14 kt 62%
Tuesday Sunny 55/19 SW 15 kt 25 kt 0% Strong winds in the forecast
Wednesday Sunny 56/18 WSW 14 kt – 0%
Thursday Mostly Sunny 58/23 SSW 7 kt – 0%
Friday Partly Sunny 58/23 SSW 7 kt – 15%
Saturday Slight Chance Rain And Snow Showers 55/23 WNW 5 kt – 22%
Sunday Slight Chance Snow Showers then Rain Showers Likely 54 W 7 kt – 67%

Source: National Weather Service (office BOU). Forecast issued 0829Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
1 runway · crosswind ranking
ON-FIELD METAR
NESW0927 300°300°4 kt300°300° 4300°
READING THE BARB · SWIPE FOR MORE →
Calm
5 kt
10 kt
15 kt
20 kt
25 kt
30 kt
35 kt
40 kt
45 kt
50 kt
65 kt
75 kt
100 kt
105 kt
Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.
WIND USED
300° at 4 kt
Components computed from the current on-field METAR wind.
RECOMMENDED
RWY 274 kt headwind · 1 kt crosswind
RUNWAYS BY WIND · best end
27
HEAD
4 kt
CROSS
1 kt R
BEST
09
HEAD
4 kt tail
CROSS
1 kt L
OK
Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.
RUNWAYS

Runway detail & declared distances

1 runway · longest 5,001 ft

09/27
Dimensions
5,001 x 75 ft
Surface
Asphalt (fair)
Edge lights
LOW
RWY 09102°T
REILYes
VGSIPAPI (P2L)
Traffic patternLeft
RWY 27282°T
REILYes
Traffic patternRight

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Performance & density altitude

Density altitude
8,297 ft
Pressure altitude
7,793 ft
Field elevation
8,203 ft MSL
Temperature
3°C (37°F)
Dewpoint
2°C (36°F)
Altimeter
30.33 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0010Z 6:10 PM
Sunrise
1325Z 7:25 AM
Loggable night
0037Z (6:37 PM local) → 1258Z (6:58 AM local)
end of evening to start of morning civil twilight
Position lights required
0010Z (6:10 PM local) → 1325Z (7:25 AM local)
sunset to sunrise (91.209)
Night passenger currency
0110Z (7:10 PM local) → 1225Z (6:25 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Granby Grand County Airport is in Granby, Colorado. Field elevation 8,203 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerSHAWN MAHORNEY
Manager phone970-887-2123
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAKGNB
SectionalCHEYENNE
Center (ARTCC)DENVER
Flight service (AFSS)DENVER
RegionColorado
CountryUnited States
Coordinates40.0897, -105.9170
Distance from city1 NM NE
SERVICES & LIGHTING
Fuel100LL · Jet A
Control towerNon-towered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
CTAF123.000
UNICOM123.000
FREQUENCIES

Communications

119.925
AWOS 1
AWOS
123
CTAF/UNICOM
UNIC
123.000
CTAF
CTAF
123.000
UNICOM
UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KBDU Boulder Municipal Airport
32 NM E
IFR
KBJC Rocky Mountain Metropolitan Airport
38 NM E
LIFR
KFNL Northern Colorado Regional Airport
47 NM NE
LIFR
KSBS Steamboat Springs Bob Adams Field
50 NM NW
VFR
KEGE Eagle County Regional Airport
53 NM SW
VFR
KLXV Lake County Airport
55 NM S
IFR
AIRPORT REMARKS

Operational remarks

›RWY 09 HAS +563 FT TERRAIN 21277 FT FM THLD 371 FT LEFT OF CNTRLN.
›FOR CD CTC DENVER ARTCC AT 303-651-4257.
›RWY 27 HAS +525 FT TERRAIN 6000 FT FM THLD 1400 LEFT OF CNTRLN, +52 FT TERRAIN 1200 FT FM THLD ON EXTNDD CNTRLN, +40 FT POWERLINE 965 FT FM THLD 260 LEFT OF CNTRLN.
›FUEL AVBL 24 HR SELF SVC.
›ARPT CONTACT; JOSHUA SCHROEDER - JSCHROEDER@CO.GRAND.CO.US, 970-887-2123.
›RCMD TKOF TO EAST ONLY BY EXPERIENCED PILOTS; HIGH GROUND RISES QUICKLY TO THE EAST.
›ESTABLISHED PRIOR TO 1959.
›ACTVT REIL RWY 09 & 27; LIRL RWY 09/27 - CTAF.
›COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -24C.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗KGNB on OurAirports
FREQUENTLY ASKED
Does KGNB have a METAR?
Yes. KGNB has a current METAR observation, decoded into plain English on this page.
Does KGNB have a TAF?
When KGNB issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.
What is the field elevation at KGNB?
KGNB sits at 8,203 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KGNB?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.