KNHK TAF
Terminal aerodrome forecast for Patuxent River NAS (Trapnell Field) (NHK · KNHK), Patuxent River, MD. Issued 20 Sep 2026 2312Z, valid 2300Z to 2300Z, decoded period by period below. · Open on the map
All of Patuxent River NAS (Trapnell Field) — runways, frequencies, charts and live weatherTAF issued 20 Sep 2026 2312Z
valid 2300Z to 2300ZTAF KNHK 2023/2123 17008KT 9999 FEW090 SCT090 QNH2986INS TEMPO 2100/2103 8000 SHRA SCT050 BKN100 BECMG 2103/2105 27010KT 9999 BKN030 BKN200 QNH2986INS BECMG 2107/2109 01013G18KT 9999 BKN030 BKN150 QNH2993INS AUTOMATED SENSOR METWATCH 2023 TIL 2108 TX31/2121Z TN20/2111Z FN00298
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 2300Z to 0300Z | Initial | 170° at 8 kt | 6+ SM | Clear | Few at 9,000 ft AGL, Scattered at 9,000 ft AGL | VFR |
| 0000Z to 0300Z | TEMPO | Calm | 4.97 SM | 10,000 ft BKN | Scattered at 5,000 ft AGL, Broken at 10,000 ft AGL | MVFR |
| 0300Z to 0700Z | BECMG | 270° at 10 kt | 6+ SM | 3,000 ft BKN | Broken at 3,000 ft AGL, Broken at 20,000 ft AGL | MVFR |
| 0700Z to 2300Z | BECMG | 010° at 13-18 kt | 6+ SM | 3,000 ft BKN | Broken at 3,000 ft AGL, Broken at 15,000 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
- VFR
- Visual flight rules — ceiling above 3,000 ft and visibility greater than 5 SM.
- MVFR
- Marginal VFR — ceiling 1,000 to 3,000 ft and/or visibility 3 to 5 SM.
Frequently asked
What is the current TAF for KNHK?
The forecast issued 20 Sep 2026 2312Z for Patuxent River NAS (Trapnell Field) reads: TAF KNHK 2023/2123 17008KT 9999 FEW090 SCT090 QNH2986INS TEMPO 2100/2103 8000 SHRA SCT050 BKN100 BECMG 2103/2105 27010KT 9999 BKN030 BKN200 QNH2986INS BECMG 2107/2109 01013G18KT 9999 BKN030 BKN150 QNH2993INS AUTOMATED SENSOR METWATCH 2023 TIL 2108 TX31/2121Z TN20/2111Z FN00298
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 KNHK
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.