KCMH TAF
Terminal aerodrome forecast for John Glenn Columbus International (CMH · KCMH), Columbus, OH. Issued 20 Sep 2026 2323Z, valid 0000Z to 0000Z, decoded period by period below. · Open on the map
All of John Glenn Columbus International — runways, frequencies, charts and live weatherTAF issued 20 Sep 2026 2323Z
valid 0000Z to 0000ZTAF KCMH 202323Z 2100/2124 04010KT P6SM BKN025 PROB30 2023/2102 4SM -TSRA BR OVC015CB FM210200 05010KT 5SM -SHRA BR OVC015 PROB30 2102/2107 4SM -TSRA OVC008CB FM210700 04010KT 5SM -SHRA BR OVC009 TEMPO 2107/2111 2SM -TSRA BR OVC006CB FM211100 03010KT 5SM -SHRA BR OVC009 PROB30 2111/2116 4SM SHRA OVC004 FM212000 04009KT 5SM -SHRA BR OVC012
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 2300Z to 0200Z | PROB | Calm | 4 SM | 1,500 ft OVC | Overcast at 1,500 ft AGL | MVFR |
| 0000Z to 0200Z | Initial | 040° at 10 kt | 6+ SM | 2,500 ft BKN | Broken at 2,500 ft AGL | MVFR |
| 0200Z to 0700Z | FM | 050° at 10 kt | 5 SM | 1,500 ft OVC | Overcast at 1,500 ft AGL | MVFR |
| 0200Z to 0700Z | PROB | Calm | 4 SM | 800 ft OVC | Overcast at 800 ft AGL | IFR |
| 0700Z to 1100Z | FM | 040° at 10 kt | 5 SM | 900 ft OVC | Overcast at 900 ft AGL | IFR |
| 0700Z to 1100Z | TEMPO | Calm | 2 SM | 600 ft OVC | Overcast at 600 ft AGL | IFR |
| 1100Z to 2000Z | FM | 030° at 10 kt | 5 SM | 900 ft OVC | Overcast at 900 ft AGL | IFR |
| 1100Z to 1600Z | PROB | Calm | 4 SM | 400 ft OVC | Overcast at 400 ft AGL | LIFR |
| 2000Z to 0000Z | FM | 040° at 9 kt | 5 SM | 1,200 ft OVC | Overcast at 1,200 ft AGL | MVFR |
What the change groups mean
- FM
- From — a rapid, permanent change to the conditions that follow.
- TEMPO
- Temporary — expected for less than half the period, in spells under an hour.
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 KCMH?
The forecast issued 20 Sep 2026 2323Z for John Glenn Columbus International reads: TAF KCMH 202323Z 2100/2124 04010KT P6SM BKN025 PROB30 2023/2102 4SM -TSRA BR OVC015CB FM210200 05010KT 5SM -SHRA BR OVC015 PROB30 2102/2107 4SM -TSRA OVC008CB FM210700 04010KT 5SM -SHRA BR OVC009 TEMPO 2107/2111 2SM -TSRA BR OVC006CB FM211100 03010KT 5SM -SHRA BR OVC009 PROB30 2111/2116 4SM SHRA OVC004 FM212000 04009KT 5SM -SHRA BR OVC012
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 KCMH
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.
Something here wrong or out of date? Report a data problem.