ATIS Alerts

Grissom Air Reserve Base (KGUS) Aviation Weather, METAR, TAF & ATIS Alerts

Live aviation weather for Grissom Air Reserve Base in Peru, IN, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.

Grissom Air Reserve Base (KGUS) is a regional airport serving Peru, IN at 812 ft. KGUS reports its own METAR and publishes a TAF — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 2 runways (05, 23) — longest 12,501 ft — are checked against the current wind in the crosswind table below. The official FAA airport diagram is at the bottom of the page. Track KGUS in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture — flight category, wind, or ceiling past your selected minimums.

VFR
Observed 0155Z (9:55 PM EDT)live · refreshes every 60s
Wind
310° 6 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
29.84"
Temp / Dew
21°C / 69°F
dew 17°C

Wind from the northwest (310°) at 6 kt, visibility 10+ statute miles, no cloud data, temperature 21°C (69°F), altimeter 29.84 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KGUS 290155Z AUTO 31006KT 10SM CLR 21/17 A2984 RMK AO2 SLP102 T02070171 TSNO $

What changed at KGUS?

Since the 0055Z (8:55 PM EDT) report — compared automatically against the latest METAR.

  • Pressure rising: altimeter 29.82 → 29.84 inHg.

This is exactly what ATIS Alerts watches for you — get a Telegram message when KGUS's weather changes, free →

Current pilot readout for KGUS

KGUS is currently VFR with winds from 310° at 6 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 05, about 6 knots. Density altitude is approximately 1,800 ft (field elevation 812 ft). Review the latest TAF below for forecast changes before departure.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

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Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Use this section to quickly compare current wind alignment across available runways at KGUS. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
05FAV0 kt head6 kt left
230 kt head6 kt right

Open the crosswind calculator — try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip — flight category:VFRMVFRIFRLIFRNo report
071502Z14Z01Z

Over the last 23 h: wind 86 kt, ceiling unlimitedunlimited.

KGUS weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.

Live weather radar around Grissom Air Reserve Base in Peru, IN: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KGUS is headed.

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Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

Pilot reports (PIREPs) within 100 NM of KGUS

Reported by pilots in flight over the past 6 hours — via aviationweather.gov.

PIREP0126Z (9:26 PM EDT) · 53 NM N of KGUS · 25,000 ft MSL · E75L
Show raw report
GSH UA /OV GSH/TM 0126/FL250/TP E75L/TB NEG
GSH UAHeader — reporting station and UA: a routine pilot report.
OV GSHLocation — fix or navaid, optionally with a radial and distance in NM.
TM 0126Reported at 01:26 UTC.
FL250Altitude: 25,000 ft MSL.
TP E75LAircraft type reporting.
TB NEGTurbulence: none reported.
PIREP2321Z (7:21 PM EDT) · 48 NM NE of KGUS · 3,000 ft MSL · CL35
Show raw report
FWA UA /OV FWA/TM 2321/FL030/TP CL35/SK B033
FWA UAHeader — reporting station and UA: a routine pilot report.
OV FWALocation — fix or navaid, optionally with a radial and distance in NM.
TM 2321Reported at 23:21 UTC.
FL030Altitude: 3,000 ft MSL.
TP CL35Aircraft type reporting.
SK B033Sky condition — cloud bases and tops in hundreds of feet MSL.
PIREP2251Z (6:51 PM EDT) · 48 NM NE of KGUS · during descent · E175
Show raw report
FWA UA /OV FWA/TM 2251/FLDURD/TP E175/WX MVFR NO CLEAR BASE OR TOP
FWA UAHeader — reporting station and UA: a routine pilot report.
OV FWALocation — fix or navaid, optionally with a radial and distance in NM.
TM 2251Reported at 22:51 UTC.
FLDURDReported during descent.
TP E175Aircraft type reporting.
WX MVFR NO CLEAR BASE OR TOPWeather and flight visibility observed.
PIREP2112Z (5:12 PM EDT) · 64 NM N of KGUS · 3,000 ft MSL · E75L
Show raw report
SBN UA /OV KSBN/TM 2112/FL030/TP E75L
SBN UAHeader — reporting station and UA: a routine pilot report.
OV KSBNLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2112Reported at 21:12 UTC.
FL030Altitude: 3,000 ft MSL.
TP E75LAircraft type reporting.
PIREP2049Z (4:49 PM EDT) · 80 NM NW of KGUS · during descent · E545
Show raw report
MDW UA /OV MDW140020/TM 2049/FL060/TP E545/SK VMC/TB NEG/RM DURD
MDW UAHeader — reporting station and UA: a routine pilot report.
OV MDW140020Location — fix or navaid, optionally with a radial and distance in NM.
TM 2049Reported at 20:49 UTC.
FL060Altitude: 6,000 ft MSL.
TP E545Aircraft type reporting.
SK VMCSky condition — cloud bases and tops in hundreds of feet MSL.
TB NEGTurbulence: none reported.
RM DURDRemarks.
PIREP2048Z (4:48 PM EDT) · 99 NM N of KGUS · 4,800 ft MSL · DA40
Show raw report
AZO UA /OV AZO/TM 2048/FL048/TP DA40/SK B048
AZO UAHeader — reporting station and UA: a routine pilot report.
OV AZOLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2048Reported at 20:48 UTC.
FL048Altitude: 4,800 ft MSL.
TP DA40Aircraft type reporting.
SK B048Sky condition — cloud bases and tops in hundreds of feet MSL.
PIREP2035Z (4:35 PM EDT) · 99 NM N of KGUS · 4,500 ft MSL · SR22
Show raw report
AZO UA /OV AZO/TM 2035/FL045/TP SR22/SK B045
AZO UAHeader — reporting station and UA: a routine pilot report.
OV AZOLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2035Reported at 20:35 UTC.
FL045Altitude: 4,500 ft MSL.
TP SR22Aircraft type reporting.
SK B045Sky condition — cloud bases and tops in hundreds of feet MSL.

⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.

Recent aviation weather trends at KGUS

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KGUS reported a mix of conditions, most often VFR across 44 observations, with 13 flight-category changes. The lowest ceiling was 400 ft. Wind most often came from the N.

Last 24 hours
VFR 55%MVFR 20%IFR 23%LIFR 2%
Wind avg/max: 8/13 kt
Max gust:
Lowest ceiling: 400 ft
Lowest vis:
Prevailing wind: N
Category changes: 13

Most recent change: MVFRVFR

Last 7 days
VFR 80%MVFR 14%IFR 4%LIFR 2%
Wind avg/max: 5/15 kt
Max gust:
Lowest ceiling: 300 ft
Lowest vis: 2.25 sm
Prevailing wind: N
Category changes: 16

Most recent change: MVFRVFR

Active Runway - past 30 days
23
59%
05
41%

TAF — Terminal Aerodrome Forecast

Issued 2100Z (5:00 PM EDT)

TAF KGUS 282100Z 2821/3003 33012G18KT 9999 SCT030 SCT200 QNH2978INS BECMG 2823/2824 VRB06KT 9999 SKC QNH2982INS BECMG 2914/2915 02006KT 9999 SCT040 QNH2995INS TX27/2821Z TN15/2912Z LAST NO AMDS AFT 2903 NEXT 2913

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Airport facts

Reference data from the OurAirports dataset.

Type
Regional airport
ICAO
KGUS
IATA
GUS
FAA LID
GUS
City
Peru
State
Indiana
Country
United States
Elevation
812 ft
Coordinates
40.6481, -86.1521
Runways
2
Longest runway
12,501 ft
Weather reporting
Reports METAR
TAF
Published
ATIS
108.45 MHz
Time zone
America/Indiana/Indianapolis
Next sunset
22h 57m

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Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

RC flying fields nearby

AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.

All RC flying fields →

See all Indiana airports →

Historical Flying Weather

2006–2025 · ATIS Alerts Flying Weather Index

Based on historical observations from 2006–2025, KGUS reported VFR conditions during about 77.2% of valid daylight observations, with an estimated 239 VFR flying days a year. August had the most VFR weather; January had the most instrument conditions. Surface winds averaged 8.0 kt, calm 6.8% of the time.

VFR Score
34
Wind Score
35
Reliability Score
50
National VFR rank
#1202 of 1,400
Regional rank
#74
State rank
#19
Full historical breakdown
Daylight VFR
77.2%
MVFR
14.3%
IFR
6.3%
LIFR
2.7%
Est. VFR days/yr
239
Most VFR month
August
Fewest VFR month
January
Median ceiling
3,500 ft
Median visibility
10 sm
Calm wind
6.8%
Median wind
7 kt
Gusty hours
9.2%
Crosswind >15 kt
3.2%
Fog/mist days/yr
157
Thunderstorm days/yr
43
Summer density alt
2,349 ft

Flight category by month

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDec
VFRMVFRIFRLIFR
KGUS monthly flight-category distribution, 2006–2025
MonthVFR %MVFR %IFR %LIFR %
Jan53.826.412.77.1
Feb63.821.910.24.1
Mar74.915.86.92.5
Apr80.911.85.61.6
May84.69.94.21.3
Jun88.37.73.01.0
Jul89.56.42.61.5
Aug89.56.12.71.7
Sep85.68.64.11.7
Oct81.611.55.11.8
Nov73.117.86.62.5
Dec54.227.812.25.9

Average wind by month

0511JanFebMarAprMayJunJulAugSepOctNovDec
KGUS average wind by month, 2006–2025
MonthMean wind (kt)
Jan9.6 kt
Feb9.3 kt
Mar9.3 kt
Apr9.5 kt
May7.9 kt
Jun7.1 kt
Jul5.8 kt
Aug5.4 kt
Sep6.1 kt
Oct7.9 kt
Nov8.7 kt
Dec9.1 kt

Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.

KGUS airport diagram

Official FAA taxiway and runway layout. Tap to zoom.

The FAA airport diagram for Grissom Air Reserve Base in Peru, IN shows the runway and taxiway layout across 2 runways, ramp areas, and hold-short positions — review it before taxiing at an unfamiliar field.

Official FAA airport diagram · d-TPP cycle 2608 · Not for navigation. Download the official FAA PDF ↗

KGUS weather — frequently asked

What runways are available at KGUS?+

KGUS has 2 runways — 05, 23; the longest is 12,501 ft. This page computes the live crosswind for each runway end from the current wind.

Does KGUS report its own weather?+

Yes — Grissom Air Reserve Base has its own weather station and publishes METAR observations, which this page decodes live.

Does KGUS have a TAF?+

Yes — the TAF is shown on this page below the current conditions.

Does KGUS broadcast D-ATIS?+

No — KGUS does not broadcast D-ATIS. Alerts for KGUS from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.

Where can I find the KGUS airport diagram?+

The official FAA airport diagram for Grissom Air Reserve Base (KGUS) is shown on this page — it maps the runway and taxiway layout, ramps, and hold-short lines. Tap it to zoom, or download the official FAA PDF free from the link under the diagram (updated every 28-day FAA charting cycle).

Pilot PIREPs for Grissom Air Reserve Base (KGUS)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Grissom Air Reserve Base, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for KGUS yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only — not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

From the ATIS Alerts team

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