KGUS TAF
Terminal aerodrome forecast for Grissom Air Reserve Base (GUS · KGUS), Peru, IN. Issued 6 Aug 2026 2100Z, valid 2100Z to 0300Z, decoded period by period below.
All of Grissom Air Reserve Base — runways, frequencies, charts and live weatherTAF issued 6 Aug 2026 2100Z
valid 2100Z to 0300ZTAF KGUS 062100Z 0621/0803 VRB06KT 9999 SCT015 BKN030 BKN180 QNH3006INS TEMPO 0621/0624 33010KT 8000 -TSRA BKN015CB BECMG 0708/0709 00000KT 3200 BR FEW004 OVC010 QNH3008INS TEMPO 0709/0713 0800 FG OVC004 BECMG 0713/0714 VRB06KT 4800 BR SCT008 BKN012 QNH3008INS BECMG 0716/0717 23010KT 9999 NSW BKN030 BKN080 QNH2998INS BECMG 0802/0803 21010KT 8000 -TSRA BKN030CB BKN080 QNH2998INS TX27/0720Z TN19/0710Z LAST NO AMDS AFT 0703 NEXT 0713
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 2100Z to 0800Z | Initial | Variable at 6 kt | 6+ SM | 3,000 ft BKN | Scattered at 1,500 ft AGL, Broken at 3,000 ft AGL, Broken at 18,000 ft AGL | MVFR |
| 2100Z to 0000Z | TEMPO | 330° at 10 kt | 4.97 SM | 1,500 ft BKN | Broken at 1,500 ft AGL | MVFR |
| 0800Z to 1300Z | BECMG | 000° at 0 kt | 1.99 SM | 1,000 ft OVC | Few at 400 ft AGL, Overcast at 1,000 ft AGL | IFR |
| 0900Z to 1300Z | TEMPO | Calm | 0.5 SM | 400 ft OVC | Overcast at 400 ft AGL | LIFR |
| 1300Z to 1600Z | BECMG | Variable at 6 kt | 2.98 SM | 1,200 ft BKN | Scattered at 800 ft AGL, Broken at 1,200 ft AGL | IFR |
| 1600Z to 0200Z | BECMG | 230° at 10 kt | 6+ SM | 3,000 ft BKN | Broken at 3,000 ft AGL, Broken at 8,000 ft AGL | MVFR |
| 0200Z to 0300Z | BECMG | 210° at 10 kt | 4.97 SM | 3,000 ft BKN | Broken at 3,000 ft AGL, Broken at 8,000 ft AGL | MVFR |
What the change groups mean
- TEMPO
- Temporary — expected for less than half the period, in spells under an hour.
- BECMG
- Becoming — a gradual change over the stated window.
What the categories mean
- MVFR
- Marginal VFR — ceiling 1,000 to 3,000 ft and/or visibility 3 to 5 SM.
- IFR
- Instrument flight rules — ceiling 500 to 999 ft and/or visibility 1 to less than 3 SM.
- LIFR
- Low IFR — ceiling below 500 ft and/or visibility less than 1 SM.
Frequently asked
What is the current TAF for KGUS?
The forecast issued 6 Aug 2026 2100Z for Grissom Air Reserve Base reads: TAF KGUS 062100Z 0621/0803 VRB06KT 9999 SCT015 BKN030 BKN180 QNH3006INS TEMPO 0621/0624 33010KT 8000 -TSRA BKN015CB BECMG 0708/0709 00000KT 3200 BR FEW004 OVC010 QNH3008INS TEMPO 0709/0713 0800 FG OVC004 BECMG 0713/0714 VRB06KT 4800 BR SCT008 BKN012 QNH3008INS BECMG 0716/0717 23010KT 9999 NSW BKN030 BKN080 QNH2998INS BECMG 0802/0803 21010KT 8000 -TSRA BKN030CB BKN080 QNH2998INS TX27/0720Z TN19/0710Z LAST NO AMDS AFT 0703 NEXT 0713
How far ahead does a TAF forecast?
A TAF covers a 24-hour period at most airports and 30 hours at larger ones, issued four times a day at 0000Z, 0600Z, 1200Z and 1800Z. It describes conditions within roughly 5 statute miles of the airport, not the surrounding area.
What do FM, BECMG and TEMPO mean?
FM (from) marks a rapid, permanent change at the stated time. BECMG (becoming) marks a gradual change over the stated window. TEMPO marks conditions expected for less than half the period, in spells of under an hour each. PROB30 and PROB40 give the probability of the conditions that follow.
More about KGUS
Forecasts from the US National Weather Service Aviation Weather Center. Times are UTC (Zulu). For planning and education only — always confirm with an official preflight briefing.