WxDecoder

KGUS/GUS METAR & TAF Grissom Air Reserve Base

Peru, IndianaElevation 812 ftMedium airport
CURRENT STATUS
VFR11 min old
Ceiling 18,000 ft, visibility 10 SM.
FLIGHT CATEGORY
VFR
ceiling & visibility
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
18,000 ft
lowest BKN/OVC
DENSITY ALT
317 ft
-495 ft vs field
CURRENT METAR

Decoded observation

Observed 0455Z (12:55 AM local) · 11 min old

KGUS is currently VFR. Winds are calm. Visibility is 10 statute miles. The ceiling is 18,000 feet AGL.

WIND
Calm
No steady wind.
VISIBILITY
10 statute miles
16.1 km, good.
CEILING & SKY
Ceiling 18,000 ft
Lowest broken or overcast layer.
TEMP / DEWPOINT
12°C / 10°C
54°F / 50°F. 2°C spread.
ALTIMETER
30.25 inHg
1024.4 hPa, above standard.
WEATHER & HAZARDS
No significant hazards
No precipitation or obscuration reported.

Codes in this report: AUTO 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)
SLP245
sea-level pressure 1024.5 hPa
T01210102
precise temperature 12.1°C, dew point 10.2°C
402380081
24-hour maximum 23.8°C, minimum 8.1°C
TSNO
thunderstorm/lightning sensor not operating
$
station needs maintenance
TERMINAL AERODROME FORECAST

TAF timeline

Issued 2100Z (5:00 PM local) · valid to 0300Z (11:00 PM local)

KGUS forecast starts VFR at 21Z. Worst period is 10Z to 13Z with MVFR possible. Best period is 21Z to 10Z (VFR). Conditions are roughly steady over the period.

  • Maximum temperature 23°C expected at 2100Z on day 26.
  • Minimum temperature 9°C expected at 1200Z on day 27.
BKN25025,000 ft
BKN25025,000 ft
BKN25025,000 ft
BKN15015,000 ft
2100Z5:00 PM0300Z11:00 PM0900Z5:00 AM1500Z11:00 AM2100Z5:00 PM0300Z11:00 PM

Codes in this report: 9999 BKN TEMPO BR BECMG OVC

Tap any group to decode it.

FAA: no delays reported at GUS.

Source: FAA System Operations (ASWS). Operational status only; verify with official FAA sources and NOTAMs.

SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No significant weather concerns in the current report.

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 VFR, wind calm, visibility 10 SM, ceiling 18,000 ft. Forecast suggests tuesday partly sunny, high near 73F, low near 51F, 2% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tuesday Partly Sunny 73/51 SE 9 kt – 2%
Wednesday Mostly Sunny 75/52 S 9 kt – 1%
Thursday Sunny 78/54 SW 13 kt – 15%
Friday Partly Sunny 76/54 NE 4 kt – 9%
Saturday Mostly Cloudy 74/55 SE 9 kt – 45%
Sunday Chance Rain Showers 73/55 S 9 kt – 46%
Monday Chance Rain Showers 71 S 9 kt – 36%

Source: National Weather Service (office IWX). Forecast issued 0505Z.

Radar

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

OUR HEADSET PICK · NOT SPONSORED

DC

David Clark DC ONE-X

Not sponsored, just the headset we'd buy ourselves: the DC ONE-X, with hybrid noise canceling, Bluetooth, and 30+ hour battery. And David Clark's A+ customer service is the real reason we recommend them.

Visit David Clark
RUNWAYS & WIND
1 runway · crosswind ranking
NESW0523CALMCALMCALMCALMCALM
WIND USED
Wind calm or variable
Crosswind ranking is unavailable until the wind has a steady direction.
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 12,501 ft

05/23
Dimensions
12,501 x 200 ft
Surface
Asphalt
Edge lights
HIGH
RWY 0544°T
ILSILS
Approach lightsALSF1
VGSIPAPI (P4L)
Traffic patternLeft
RWY 23224°T
ILSLOC/GS
Approach lightsALSF1
VGSIPAPI (P4L)
Traffic patternLeft

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
317 ft
Pressure altitude
482 ft
Field elevation
812 ft MSL
Temperature
12°C (54°F)
Dewpoint
10°C (50°F)
Altimeter
30.25 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
2248Z 6:48 PM
Sunrise
1208Z 8:08 AM
Loggable night
2316Z (7:16 PM local) → 1140Z (7:40 AM local)
end of evening to start of morning civil twilight
Position lights required
2248Z (6:48 PM local) → 1208Z (8:08 AM local)
sunset to sunrise (91.209)
Night passenger currency
2348Z (7:48 PM local) → 1108Z (7:08 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

Grissom Air Reserve Base is in Peru, Indiana. Field elevation 812 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipAir Force owned
UseOpen to the public
TypeMedium airport
Manager434 ARW WING COMMANDER
Manager phone765-688-2613
CHARTS & AIRSPACE
ICAO / IATAKGUS / GUS
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)TERRE HAUTE
RegionIndiana
CountryUnited States
Coordinates40.6481, -86.1521
Distance from city5 NM S
SERVICES & LIGHTING
Fuel100
Control towerTowered
BeaconSunset to sunrise · White-green (lighted land airport)
FREQUENCIES

Communications

121.05
A/D INITIAL CONTACT
A/D
123.85
GRISSOM A/D WEST
A/D
135.35
GRISSOM A/D SECONDARY
A/D
108.45
ATIS
ATIS
128.425
CLNC DEL
CLD
121.05
CHICAGO CTR
CTR
128.425
GND
GND
34.46
PMSV METRO
PMSV
372.2
PTD
PTD
133.7
TWR
TWR

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

AIRCRAFT ACTIVITY

KGUS traffic patterns

2026-06-20 to 2026-10-23, 23 days observed · data 2026-10-25

Medium confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0.8
AVG OPS/DAY
2
Activity trend over 6 days: flat, from 1 to 1 operations per dayOperations trend (6 days)

Busiest day: Sun · Busiest month: Aug

FLEET MIX
Turboprop 35%Piston single 31%Airliner 19%Helicopter 9%Jet 4%Unknown 3%

Mostly turboprop aircraft.

TOP AIRCRAFT TYPES
›BE20 (Turboprop) · ~5 landings/mo
›P51 (Piston single) · ~4 landings/mo
›AT8T (Turboprop) · ~3 landings/mo
›C17 (Airliner) · ~3 landings/mo
›C30J (Airliner) · ~2 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›P51 (Piston single)
›C170 (Piston single)
›C17 (Airliner)
›BE20 (Turboprop)
›B47G (Helicopter)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KOKK Kokomo Municipal Airport
8 NM SE
VFR
KMZZ Marion Municipal Airport
24 NM SE
VFR
KRCR Fulton County Airport
25 NM N
MVFR
KLAF Purdue University Airport
39 NM W
VFR
KAID Anderson Municipal Darlington Field
41 NM SE
VFR
KMIE Delaware County Johnson Field
42 NM SE
VFR
AIRPORT REMARKS

Operational remarks

›GA PRAC APCH NA, ALFD IS OFFL BUS ONLY DUR HOTPIT REFUELING.
›OIL: O-133-148-156 JOAP.
›765-688-2254.
›RSTD: AFRC ACFT EXP RSTRN WHEN MOD OR HIGHER; NO LCL IFR/VFR TFC; OPS NA WO OG/CC APVL.
›RWY COND CODES UNAVBL.
›FIRST 1000 FT CONC; RMNG ASPH.
›50 FT NON WT BRG SHOULDER EA SIDE.
›JASU; A/M32A-86, MD-3, AM32-95 & MA-1A.
›CTN: DURG RAIN EXP STANDING WATER ON RWY.
›FBO E END; PRIOR PMSN NOT RQR FOR ACFT LDG CIV FBO; CTC TWR; EXP TAXI INSTR; 100LL & JET A AVBL.
›MISC: WX SVC AVBL DURG OPS HR - D388-2203/2204; C765-688-2203/2204.
›TRANS ALERT: AVBL DURG OPS HRS; NO PRIORITY BASIS; SVC AVBL PRIOR ARNG; FLEET SVC NA.
›OPR 1230-0400Z++; CLSD FEDERAL HOL; FBO CLSD FRI 2200Z THRU MON 1230Z; PPR - AFLD OPS D388-2254/C765-688-2254.
›FUEL: MIL 1200-0400Z++; CLSD FEDERAL HOL.
›CTN: RWY LGTS 28 FT FM EDGE.
›FOR RAPCON SVC - 121.05 OR 379.3
›EXP DELAY WHEN TACTICAL ARR & DEP TRNG IN PROG & DURG SNOW REMOVAL OPS.
›FLUID: SP PRESAIR LHOX.
›SUA OVHD & NW; HVY & FIGHTER JET TRNG RMN NW WI 10 NM.
›PPR FOR CIV ACFT ON MIL RAMP.
›RSTD: PAX/CARGO ACFT CTC COMMAND POST NLT 30 MIN PRIOR TO LNDG.
›CIV TRNG NA PER JOINT USE AGREEMENT.
›BIRD WATCH COND: MNT ATIS; PHASE I NOV-APR & JUN LGT; PHASE II MAY, JUL-OCT HVY.
›CTN: UNCTLD VEHICLE ON MOVEMENT AREAS.
›SVC LGT - FLOODS.
OFFICIAL LINKS & SOURCES
↗Official METAR on AviationWeather.gov
↗Search NOTAMs (official FAA NOTAM Search)
↗Official airport website
↗Wikipedia
↗KGUS on OurAirports
FREQUENTLY ASKED
Does KGUS have a METAR?
Yes. KGUS has a current METAR observation, decoded into plain English on this page.
Does KGUS have a TAF?
Yes, a TAF is issued for KGUS; the decoded forecast timeline is shown above.
What is the field elevation at KGUS?
KGUS sits at 812 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KGUS?
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.