9IS9 TAF
Terminal aerodrome forecast for Johnston Airport (9IS9), Heyworth, IL. This field does not issue a terminal forecast. · Open on the map
All of Johnston Airport — runways, frequencies, charts and live weatherNo 9IS9 TAF
Only a minority of US airports issue a terminal aerodrome forecast, and Johnston Airport is not one of them. The nearest forecasting stations are:
| Station | Airport | Distance |
|---|---|---|
| KBMI TAF | Central Illinois Regional Airport at Bloomington-Normal | 9 NM on the 012° radial |
| KDEC TAF | Decatur Airport | 30 NM on the 172° radial |
| KCMI TAF | University of Illinois Willard Airport | 36 NM on the 119° radial |
A TAF from a field this far away describes its own airport, not 9IS9. Read it as the regional trend and confirm with the nearest observation.
Frequently asked
What is the current TAF for 9IS9?
Johnston Airport does not issue a terminal aerodrome forecast.
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 9IS9
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.