ATIS Alerts

Henry Post Army Air Field (KFSI) Aviation Weather, METAR, TAF & ATIS Alerts

Live aviation weather for Henry Post Army Air Field in Fort Sill, OK, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.

Henry Post Army Air Field (KFSI) is a regional airport serving Fort Sill, OK at 1,189 ft. KFSI reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 2 runways (18, 36), longest 5,002 ft, are checked against the current wind in the crosswind table below. ATIS is broadcast on 135.425. Track KFSI 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 2255Z (5:55 PM CDT)live · refreshes every 60s
Wind
160° 12 kt
gusting 20 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
29.75"
Temp / Dew
107°F / 41°C
dew 51°F / 11°C

Wind from the south-southeast (160°) at 12 kt, gusting 20 kt, visibility 10+ statute miles, no cloud data, temperature 41°C (107°F), altimeter 29.75 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KFSI 122255Z AUTO 16012G20KT 10SM CLR 41/11 A2975 RMK AO2 SLP060 T04140105 $

What changed at KFSI?

Since the 2255Z (5:55 PM CDT) report, compared automatically against the latest METAR.

  • Gusts are no longer reported.

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

Current pilot readout for KFSI

KFSI is currently VFR with winds from 160° at 12 knots gusting 20, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 18, about 4 knots. Density altitude is approximately 4,850 ft (field elevation 1,189 ft). KFSI does not publish a TAF. The nearest TAF station is KLAW, about 5 nm away.

⚠️ 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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Staying over at KFSI

For pilots and crews overnighting at Henry Post Army Air Field (KFSI).

Nearby Pilot Hotel Deals

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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 KFSI. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
18FAV11 kt head4 kt left (g7)
3611 kt tail4 kt right (g7)

Open the crosswind calculator to 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
0122300Z13Z23Z

Over the last 23 h: wind 5→13 kt, ceiling unlimited → unlimited.

KFSI weather radar

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

Live weather radar around Henry Post Army Air Field in Fort Sill, OK: 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 KFSI is headed.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

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 KFSI

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

PIREP2259Z (5:59 PM CDT) · 73 NM SE of KFSI · 16,000 ft MSL · E170
Show raw report
MWL UA /OV UKW/TM 2259/FL160/TP E170/TB NEG/RM SMOOTH ZFW34
MWL UAHeader: reporting station and UA: a routine pilot report.
OV UKWLocation: fix or navaid, optionally with a radial and distance in NM.
TM 2259Reported at 22:59 UTC.
FL160Altitude: 16,000 ft MSL.
TP E170Aircraft type reporting.
TB NEGTurbulence: none reported.
RM SMOOTH ZFW34Remarks.
PIREP2256Z (5:56 PM CDT) · 53 NM NW of KFSI · 34,000 ft MSL · A321
Show raw report
CSM UA /OV BFV/TM 2256/FL340/TP A321/TB NEG/RM SMOOTH ZFW49
CSM UAHeader: reporting station and UA: a routine pilot report.
OV BFVLocation: fix or navaid, optionally with a radial and distance in NM.
TM 2256Reported at 22:56 UTC.
FL340Altitude: 34,000 ft MSL.
TP A321Aircraft type reporting.
TB NEGTurbulence: none reported.
RM SMOOTH ZFW49Remarks.
PIREP2229Z (5:29 PM CDT) · 58 NM NE of KFSI · 10,000 ft MSL · B738
chop turbulence
Show raw report
OKC UA /OV IRW/TM 2229/FL100/TP B738/TB CHOP/RM ZFW35
OKC UAHeader: reporting station and UA: a routine pilot report.
OV IRWLocation: fix or navaid, optionally with a radial and distance in NM.
TM 2229Reported at 22:29 UTC.
FL100Altitude: 10,000 ft MSL.
TP B738Aircraft type reporting.
TB CHOPTurbulence: chop.
RM ZFW35Remarks.
PIREP2217Z (5:17 PM CDT) · 60 NM NE of KFSI · 2,500 ft MSL · B737
lite chop turbulence
Show raw report
OKC UA /OV FINAL/TM 2217/FL025/TP B737/TB LITE CHOP
OKC UAHeader: reporting station and UA: a routine pilot report.
OV FINALLocation: fix or navaid, optionally with a radial and distance in NM.
TM 2217Reported at 22:17 UTC.
FL025Altitude: 2,500 ft MSL.
TP B737Aircraft type reporting.
TB LITE CHOPTurbulence: lite chop.
PIREP2210Z (5:10 PM CDT) · 62 NM NE of KFSI · 45,000 ft MSL · GLF4
Show raw report
OKC UA /OV IRW330010/TM 2210/FL450/TP GLF4/SK TOP 450/RM ZFW43
OKC UAHeader: reporting station and UA: a routine pilot report.
OV IRW330010Location: fix or navaid, optionally with a radial and distance in NM.
TM 2210Reported at 22:10 UTC.
FL450Altitude: 45,000 ft MSL.
TP GLF4Aircraft type reporting.
SK TOP 450Sky condition: cloud bases and tops in hundreds of feet MSL.
RM ZFW43Remarks.
PIREP2206Z (5:06 PM CDT) · 81 NM S of KFSI · 35,000 ft MSL · B738
Show raw report
MWL UA /OV MQP303055/TM 2206/FL350/TP B738/RM SMOOTH ZFW94
MWL UAHeader: reporting station and UA: a routine pilot report.
OV MQP303055Location: fix or navaid, optionally with a radial and distance in NM.
TM 2206Reported at 22:06 UTC.
FL350Altitude: 35,000 ft MSL.
TP B738Aircraft type reporting.
RM SMOOTH ZFW94Remarks.
PIREP2145Z (4:45 PM CDT) · 29 NM W of KFSI · during descent · CRJ9
Show raw report
SPS UA /OV SPS320035/TM 2145/FL255/TP CRJ9/TB NEG/RM DURD ZFW47
SPS UAHeader: reporting station and UA: a routine pilot report.
OV SPS320035Location: fix or navaid, optionally with a radial and distance in NM.
TM 2145Reported at 21:45 UTC.
FL255Altitude: 25,500 ft MSL.
TP CRJ9Aircraft type reporting.
TB NEGTurbulence: none reported.
RM DURD ZFW47Remarks.
PIREP2142Z (4:42 PM CDT) · 58 NM NE of KFSI · 33,000 ft MSL · B739
Show raw report
OKC UA /OV IRW/TM 2142/FL330/TP B739/TB NEG/RM ZFW49
OKC UAHeader: reporting station and UA: a routine pilot report.
OV IRWLocation: fix or navaid, optionally with a radial and distance in NM.
TM 2142Reported at 21:42 UTC.
FL330Altitude: 33,000 ft MSL.
TP B739Aircraft type reporting.
TB NEGTurbulence: none reported.
RM ZFW49Remarks.

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

Recent aviation weather trends at KFSI

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KFSI reported mostly VFR across 26 observations, with 0 flight-category changes. The strongest gust reached 20 kt. Wind most often came from the S.

Last 24 hours
VFR 100%
Wind avg/max: 9/14 kt
Max gust: 20 kt
Lowest ceiling: -
Lowest vis: -
Prevailing wind: S
Category changes: 0
Last 7 days
VFR 100%
Wind avg/max: 7/17 kt
Max gust: 20 kt
Lowest ceiling: 9,000 ft
Lowest vis: 10 sm
Prevailing wind: S
Category changes: 0
Active Runway - past 30 days
18
86%
36
14%

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Airport facts

Reference data from the OurAirports dataset.

Type
Regional airport
ICAO
KFSI
IATA
FSI
FAA LID
FSI
City
Fort Sill
State
Oklahoma
Country
United States
Elevation
1,189 ft
Coordinates
34.6498, -98.4022
Runways
2
Longest runway
5,002 ft
Weather reporting
Reports METAR
TAF
Nearest KLAW
ATIS
135.425 MHz
Time zone
America/Chicago
Sunset in
48m

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Nearby airports

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

VFRMVFRIFRLIFRNo report

RC flying fields nearby

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

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KFSI weather: frequently asked

What runways are available at KFSI?+

KFSI has 2 runways: 18, 36; the longest is 5,002 ft. This page computes the live crosswind for each runway end from the current wind.

Does KFSI report its own weather?+

Yes. Henry Post Army Air Field has its own weather station and publishes METAR observations, which this page decodes live.

Does KFSI have a TAF?+

No. KFSI does not publish its own TAF. The nearest TAF station is KLAW, about 5 nm away.

Does KFSI broadcast D-ATIS?+

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

Pilot PIREPs for Henry Post Army Air Field (KFSI)

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 Henry Post Army Air Field, 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 KFSI 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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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

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