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KGYH Runway 05/23 — Donaldson Field Airport

8,000 × 150 ft concrete · true headings 040° / 220° · field elevation 956 ft

Runway 05/23 at Donaldson Field Airport (KGYH) in Greenville, SC is 8,000 ft long and 150 ft wide, concrete, with true headings 040° and 220°. The FAA record lists ILS/DME (CAT I) and MALSR approach lights on runway 05. Over 2005–2025 the wind gave runway 05 the headwind 46% of the time and runway 23 53.5%, with a crosswind above 15 kt in 0.2% of wind hours. KGYH has no digital ATIS, so the active runway is not known; the wind-favored end and the ATIS Alerts prediction are estimates.

Ask ATIS AIAsk anything about KGYH's weather, runways or delays, or search another airport.

Runway 05/23 — current operational status

What the D-ATIS, the tower and current NOTAMs state now. The published FAA baseline (NASR) is a separate line in the overview below and does not reflect temporary closures.

CLOSED (NOTAM)
  • NOTAM 10/019: !GYH 10/019 GYH RWY 05/23 CLSD DLY 0100-1200 2610260100-2610291200

Sources: Published FAA baseline (OurAirports/NASR record) · FAA NOTAMs. Runway NOTAMs stream live from the FAA NOTAM Management Service (SWIM); the official text is shown verbatim below the card. Always confirm with a current briefing.

NOTAMs for runway 05/23

Official text as issued; grouped for reading only. “Scheduled” means not yet in effect. NOTAMs are received live from the FAA NOTAM Management Service through SWIM and recorded since Sep 19, 2026; a NOTAM issued before that and not re-issued since may be missing. Get a full briefing before flight.

Unconfirmed: on record from before a data outage, may have been cancelled. Check current NOTAMs · 2
  • 09/014 · DOM09/22 1054Z (6:54 AM EDT) → 12/22 2359Z (6:59 PM EST)
    !GYH 09/014 GYH RWY 23 PAPI U/S 2609221054-2612222359
  • 09/013 · DOM09/22 1054Z (6:54 AM EDT) → 12/22 2359Z (6:59 PM EST)
    !GYH 09/013 GYH RWY 05 PAPI U/S 2609221054-2612222359
Runway closure · 1
  • 10/019 · DOM10/26 0100Z (9:00 PM EDT) → 10/29 1200Z (8:00 AM EDT)
    !GYH 10/019 GYH RWY 05/23 CLSD DLY 0100-1200 2610260100-2610291200
Navaid / approach equipment · 3
  • 10/024 · DOM10/27 1355Z (9:55 AM EDT) → 12/31 2359Z (6:59 PM EST)
    !GYH 10/024 GYH NAV ILS RWY 05 DME NOT MNT 2610271355-2612312359EST
  • 10/023 · DOM10/27 1337Z (9:37 AM EDT) → 10/30 2359Z (7:59 PM EDT)
    !GYH 10/023 GYH NAV LOC RWY 05 U/S 2610271337-2610302359
  • 06/018 · DOM06/26 1100Z (7:00 AM EDT) → 10/30 2000Z (4:00 PM EDT)
    !GYH 06/018 GYH NAV ILS RWY 05 DME NOT MNT 2606261100-2610302000EST
Instrument procedure (FDC) · 1
  • 6/0207 · FDC10/19 1200Z (8:00 AM EDT) → 11/07 1142Z (6:42 AM EST)
    !FDC 6/0207 GYH IAP DONALDSON FLD, GREENVILLE, SC. RNAV (GPS) RWY 5, AMDT 1... LNAV/VNAV DA 1284/HAT 328 ALL CATS. LNAV MDA 1380/HAT 424 ALL CATS. VDP 1.1 NM TO RW05. CHANGE NOTES TO READ: WHEN LOCAL ALTIMETER SETTING NOT RECEIVED, USE GREER ALTIMETER SETTING AND INCREASE LPV DA TO 1185 FEET; INCREASE LNAV/VNAV DA TO 1313 AND ALL VISIBILITIES 1/8 SM; INCREASE ALL MDAS 40 FEET AND LNAV VISIBILITY CATS C AND D 1/4 SM. FOR INOP ALS, WHEN USING GREER ALTIMETER SETTING, INCREASE LNAV/VNAV ALL CATS VISIBILITY TO 1 SM AND LNAV VISIBILITY CATS C AND D TO 1 3/8 SM. TEMPORARY CRANE 1123 MSL 2710FT S OF RWY 5 (2025-ASO-15217-OE). 2610191200-2611071142EST
Taxiway · 1
  • 10/020 · DOM10/23 1726Z (1:26 PM EDT) → 11/23 2359Z (6:59 PM EST)
    !GYH 10/020 GYH TWY B2 BTN RWY 05/23 AND TWY B INT CLSD 2610231726-2611232359

Current runway assignment is not available from D-ATIS at KGYH. The wind components below show which end the wind favors; the section after it is an ATIS Alerts prediction. Neither is an ATC assignment.

Current wind on Runway 05/23

Wind from the north-northeast (020°) at 5 kt

METAR 0047Z (8:47 PM EDT)
Runway 05
FAVORED BY WIND
Headwind
5 kt
Crosswind
2 ktfrom left
Runway 23
Tailwind
5 kt
Crosswind
2 ktfrom right
0523N020°/5 kt
  • arrivals
  • departures
  • LAHSO hold-short
  • closed

Layout from FAA NASR runway-end coordinates; the selected runway is highlighted and no active source exists here. Not for navigation. Official FAA diagram ↗

Components use TRUE runway headings and TRUE METAR wind. “Favored by wind” is arithmetic, not an ATC assignment.

Runway 05/23 outlook

Where runway 05/23 stands now and which runway at KGYH is likely over the next 12 hours — an estimate, not an ATC assignment.

Time · runway 05/23 · airport-wide outlook · confidence · forecast wind · why

  1. Now0055Z · 8:55 PM EDT·05/23: CLOSED·no runway favored airport-wide·no confidence·wind 020° at 5 kt·Why Every runway end is stated closed.
  2. +1 h0155Z · 9:55 PM EDT·05/23: CLOSED·no runway favored airport-wide·no confidence·wind not forecast·Why No TAF is published for this airport, so there is no forecast wind to score.
  3. +2 h0255Z · 10:55 PM EDT·05/23: CLOSED·no runway favored airport-wide·no confidence·wind not forecast·Why No TAF is published for this airport, so there is no forecast wind to score.
  4. +3 h0355Z · 11:55 PM EDT·05/23: CLOSED·no runway favored airport-wide·no confidence·wind not forecast·Why No TAF is published for this airport, so there is no forecast wind to score.
  5. +6 h0655Z · 2:55 AM EDT·05/23: CLOSED·no runway favored airport-wide·no confidence·wind not forecast·Why No TAF is published for this airport, so there is no forecast wind to score.
  6. +12 h1255Z · 8:55 AM EDT·05/23: CLOSED·no runway favored airport-wide·no confidence·wind not forecast·Why No TAF is published for this airport, so there is no forecast wind to score.

ATIS Alerts Predicted Runway is an estimate from the current wind (no TAF is published for this airport), runway geometry (most headwind, crosswind penalised, tailwind over 5 kt avoided, longest runway breaks ties), the current stated configuration and any stated closures. Each row lists its reasons; “no runway favored” is a genuine answer under variable or light wind, never replaced by a guess. It is not an ATC assignment and does not know about noise abatement or traffic flow unless the recorded history shows them.

Runway 05/23 equipment and lighting

What the FAA record lists for each end, annotated with current NOTAM and D-ATIS outages.

Runway 05
Approach lighting
MALSROUT OF SERVICE
NOTAM 6/0207 · out of service until 11/07 1142Z (6:42 AM EST)
!FDC 6/0207 GYH IAP DONALDSON FLD, GREENVILLE, SC. RNAV (GPS) RWY 5, AMDT 1... LNAV/VNAV DA 1284/HAT 328 ALL CATS. LNAV MDA 1380/HAT 424 ALL CATS. VDP 1.1 NM TO RW05. CHANGE NOTES TO READ: WHEN LOCAL ALTIMETER SETTING NOT RECEIVED, USE GREER ALTIMETER SETTING AND INCREASE LPV DA TO 1185 FEET; INCREASE LNAV/VNAV DA TO 1313 AND ALL VISIBILITIES 1/8 SM; INCREASE ALL MDAS 40 FEET AND LNAV VISIBILITY CATS C AND D 1/4 SM. FOR INOP ALS, WHEN USING GREER ALTIMETER SETTING, INCREASE LNAV/VNAV ALL CATS VISIBILITY TO 1 SM AND LNAV VISIBILITY CATS C AND D TO 1 3/8 SM. TEMPORARY CRANE 1123 MSL 2710FT S OF RWY 5 (2025-ASO-15217-OE). 2610191200-2611071142EST
Visual glide slope
PAPI (4-box, left side)OUT OF SERVICE
NOTAM 09/013 · out of service until 12/22 2359Z (6:59 PM EST)
!GYH 09/013 GYH RWY 05 PAPI U/S 2609221054-2612222359
Runway edge lighting
HIRL (high intensity)
Centerline lighting
Not available
Touchdown zone lighting
Not available
REIL
Not available
ILS
ILS/DMEDEGRADED
I-GYH · 108.3 MHz · CAT I
NOTAM 10/024 · degraded until 12/31 2359Z (6:59 PM EST)
!GYH 10/024 GYH NAV ILS RWY 05 DME NOT MNT 2610271355-2612312359EST
NOTAM 10/023 · out of service until 10/30 2359Z (7:59 PM EDT)
!GYH 10/023 GYH NAV LOC RWY 05 U/S 2610271337-2610302359
NOTAM 06/018 · degraded until 10/30 2000Z (4:00 PM EDT)
!GYH 06/018 GYH NAV ILS RWY 05 DME NOT MNT 2606261100-2610302000EST
Localizer
AvailableOUT OF SERVICE
NOTAM 10/023 · out of service until 10/30 2359Z (7:59 PM EDT)
!GYH 10/023 GYH NAV LOC RWY 05 U/S 2610271337-2610302359
Glideslope
Available
3°
DME
AvailableDEGRADED
channel 20X
NOTAM 10/024 · degraded until 12/31 2359Z (6:59 PM EST)
!GYH 10/024 GYH NAV ILS RWY 05 DME NOT MNT 2610271355-2612312359EST
NOTAM 06/018 · degraded until 10/30 2000Z (4:00 PM EDT)
!GYH 06/018 GYH NAV ILS RWY 05 DME NOT MNT 2606261100-2610302000EST
Marker beacons
Not available
RVR
Not available
Runway markings
Precision instrument
condition good
Arresting system
BAK-14
Runway 23
Approach lighting
Not available
Visual glide slope
PAPI (4-box, left side)OUT OF SERVICE
NOTAM 09/014 · out of service until 12/22 2359Z (6:59 PM EST)
!GYH 09/014 GYH RWY 23 PAPI U/S 2609221054-2612222359
Runway edge lighting
HIRL (high intensity)
Centerline lighting
Not available
Touchdown zone lighting
Not available
REIL
Not available
ILS
Not available
Localizer
Not available
Glideslope
Not available
DME
Not available
Marker beacons
Not available
RVR
Not available
Runway markings
Precision instrument
condition good
Arresting system
BAK-14

Source: FAA NASR 28-day subscription, cycle effective 2026-10-01 (equipment on record) · FAA NOTAMs via SWIM (live)and the current D-ATIS (outages). “Not available” means the FAA record lists no such equipment for the end; nothing here is inferred. An outage annotation is only ever a reading of the official text shown with it. Declared distances are not shown in this phase.

Land and hold short operations

LAHSO hold-short points and available landing distances on the FAA record, and whether the current D-ATIS reports LAHSO in effect.

Runway 05

No LAHSO hold-short point on the FAA record for this end.

Runway 23

No LAHSO hold-short point on the FAA record for this end.

This airport has no D-ATIS, so the current LAHSO state is not known here. Source: FAA NASR cycle 2026-10-01; D-ATIS text read by ATIS Alerts.

Frequencies for runway 05/23

Tower, ground, clearance, ATIS and approach frequencies from the FAA record, labelled by what they apply to.

Frequencies serving runway 05/23 at KGYH
ServiceFrequencyApplies to
Tower133.325Airport-wide
Tower269.25Airport-wide
Ground121.4Airport-wide
Clearance delivery121.4Airport-wide
ATIS127.325Airport-wide
Show all frequencies (4 more: approach and departure sectors, secondary and other)
Frequencies serving runway 05/23 at KGYH
ServiceFrequencyApplies to
CTAF133.325Airport-wideACTVT MALSR RWY 05; HIRL RWY 05/23 - CTAF.
UNICOM122.7Airport-wide
Approach / departure118.8Airport-wide
Approach / departure270.275Airport-wide

The FAA record does not sectorize KGYH's frequencies by runway; every row applies airport-wide. Source: FAA NASR FRQ, cycle 2026-10-01. Verify on the current chart supplement before use.

Runway 05/23 overview

Physical characteristics from the FAA-derived runway record.

Length
8,000 ft
Width
150 ft
Surface
Concrete · Good condition
Surface treatment
Grooved
Weight bearing (lb)
S 94k · D 121k · 2D 199k
PCN
440
Runway lights
Lighted
Airport elevation
956 ft
Published FAA baseline
Open
Published NASR record; does not reflect temporary closures or restrictions. Current operational status is the card at the top of the page.
Runway 05
True heading
040°
Magnetic
047°
Published FAA baseline
Open
Threshold elevation
956 ft
TDZ elevation
956 ft
Displaced threshold
None on record
Threshold crossing height
56 ft
Visual glide path
3.22°
Traffic pattern
Right
Runway 23
True heading
220°
Magnetic
227°
Published FAA baseline
Open
Threshold elevation
919 ft
TDZ elevation
938 ft
Displaced threshold
None on record
Threshold crossing height
95 ft
Visual glide path
4.14°
Traffic pattern
Left
Controlling obstruction
trees, 42 ft, 1,600 ft from threshold, 33:1 slope

Runway 05/23 numbers are magnetic; the stored geometry and every wind calculation on this page are TRUE north, so they never need a variation correction. Magnetic headings use the FAA's published variation for this airport, 7.0°W (2025), the same value printed on the FAA airport diagram. Surface condition, treatment, weight bearing, thresholds and traffic pattern are from the FAA NASR record (cycle 2026-10-01); lighting, ILS and LAHSO are in their own sections above. Declared distances are not shown in this phase.

Wind-favored runway at KGYH — last 30 days

Which runway end had the most headwind each hour, from ATIS Alerts' collected wind history — an estimate, not ATC use.

Wind-favored runway - past 30 days

Share of hours each runway had the most headwind. From wind reports, not ATC assignments.

05
74%
23
26%

Historical wind and crosswind on runway 05/23

20-year hourly climatology from the ASOS archive, computed per runway end.

From 152,776 hourly observations at KGYH (2005–2025), 114,508 with a steady wind direction (25% calm, variable or direction-less). One observation per clock hour; TRUE headings against TRUE wind. Note: this station is flagged in the Flying Weather Index (Overall observation coverage below 90% (87.1%).); treat these numbers as indicative.

Crosswind on runway 05/23 (either end)

Mean crosswind
2.9 kt
median 2.5 kt
90th / 95th percentile
5.9 / 7.2 kt
max 98.5 kt
Above 10 kt
1.3%
> 15 kt: 0.2% · > 20 kt: 0%
Gust crosswind > 15 kt
1.5%
90th pct gust 6.6 kt
0%49%97%85%0–5 kt14%5–10 kt1.1%10–15 kt0.1%15–20 kt0.0%20–25 kt0.0%25+ kt
Share of wind hours by crosswind band on runway 05/23 at KGYH, 2005–2025
Crosswind (kt)Share of wind hours
0–584.5%
5–1014.2%
10–151.1%
15–200.1%
20–250%
25+0%

Strongest-crosswind month on average: Mar; calmest: Aug. Percentiles are streaming approximations (t-digest), accurate to about 0.1 kt.

Runway 05

Headwind
46%
of wind hours
Tailwind > 5 kt
25.3%
> 10 kt: 5%
Most wind-favored end
46%
of steady-wind hours, 05 had the most headwind of every end at KGYH

Runway 23

Headwind
53.5%
of wind hours
Tailwind > 5 kt
21.9%
> 10 kt: 4.3%
Most wind-favored end
54%
of steady-wind hours, 23 had the most headwind of every end at KGYH

“Most wind-favored end” is meteorological analysis: the share of steady-wind hours (2005–2025) in which this end had the most headwind of every open runway end at KGYH. It does not mean ATC selected the runway that often (parallel ends with the same heading share the credit equally). Observed runway use, where available, is the configuration-history section above.

By wind direction

Wind-favored share of runway 05 and 23 by wind sector, 2005–2025
Wind fromShare of wind hours05 favored23 favoredMean crosswindCrosswind > 15 kt
N 338–023°8%100%0%3.2 kt0.2%
NE 023–068°22%100%0%1.4 kt0%
E 068–113°13%100%0%4.3 kt0.1%
SE 113–158°4%24.1%75.9%5.1 kt0.5%
S 158–203°8%0%100%3.6 kt0.1%
SW 203–248°23%0%100%1.4 kt0%
W 248–293°19%0%100%4.4 kt0.4%
NW 293–338°3%65.7%34.3%5 kt0.8%

By time of day (airport-local)

morning
05 favored 52.4% · 23 47.6%
mean crosswind 2.8 kt · calm 27.1%
afternoon
05 favored 36.7% · 23 63.3%
mean crosswind 3.4 kt · calm 16.4%
evening
05 favored 42.7% · 23 57.3%
mean crosswind 3 kt · calm 25.9%
night
05 favored 52.3% · 23 47.7%
mean crosswind 2.4 kt · calm 30.9%

Seasonal runway conditions

0.01.83.7JanFebMarAprMayJunJulAugSepOctNovDec
Mean crosswind on runway 05/23 at KGYH by month, 2005–2025
MonthMean crosswind (kt)
Jan3.1 kt
Feb3.0 kt
Mar3.3 kt
Apr3.2 kt
May3.0 kt
Jun2.8 kt
Jul2.8 kt
Aug2.7 kt
Sep2.7 kt
Oct2.8 kt
Nov2.7 kt
Dec2.8 kt
Monthly wind and weather statistics for runway 05/23 at KGYH, 2005–2025
MonthPrevailingMean windGustyMean xwxw > 10xw > 15xw > 2005 tail > 523 tail > 5IFRTSFog
JanW5.5 kt11.3%3.1 kt2%0.3%0.1%31.4%20.3%16.1%0.22%11.6%
FebSW5.9 kt14%3 kt1.9%0.2%0%32.4%22.2%15.5%0.24%10.5%
MarSW6.1 kt15.1%3.3 kt2.6%0.4%0%30.6%22.9%11.7%0.43%7.8%
AprSW6.1 kt16.7%3.2 kt2.4%0.2%0%37.2%17.3%8.1%0.55%5.1%
MaySW5.5 kt10.7%3 kt1.1%0.2%0%29.3%18.2%8.7%1.09%5.1%
JunSW4.7 kt5.8%2.8 kt0.5%0.1%0%25%14.4%5.5%1.29%3.3%
JulSW4.6 kt4.1%2.8 kt0.5%0.1%0.1%27.4%13.2%5.4%1.58%3.7%
AugNE4.3 kt3.3%2.7 kt0.7%0.1%0%15.4%21.6%7.2%1.02%4.6%
SepNE4.9 kt7.1%2.7 kt0.6%0.1%0.1%10.1%33%8.4%0.35%5%
OctNE4.9 kt8.7%2.8 kt0.7%0.1%0%17.6%29.3%9.7%0.18%5.7%
NovNE5 kt8.2%2.7 kt0.8%0.1%0%19.3%30.1%9.8%0.04%6.9%
DecNE5.1 kt8.5%2.8 kt1.3%0.1%0.1%26.2%22.8%18.9%0.15%14.1%

IFR, thunderstorm (TS) and fog columns are airport-wide shares of hours; the crosswind and tailwind columns are specific to this runway. Prevailing = most common 45° wind sector among wind hours.

Runway 05/23 closure history

Kept per source with its provenance: D-ATIS-observed, NOTAM-observed and the FAA published baseline are never merged.

KGYH has no D-ATIS, so there is no broadcast-observed closure record.

NOTAM observed · recorded since Sep 19, 2026 (no archive before that)
  • 10/019 · closure (full) · runway 05/23effective 2026-10-26 01:00Z → 2026-10-29 12:00Z · first seen 2026-10-23 15:46Z · last seen 2026-10-23 15:46Z
    !GYH 10/019 GYH RWY 05/23 CLSD DLY 0100-1200 2610260100-2610291200
  • 10/016 · closure (full) · runway 05/23effective 2026-10-21 18:51Z → 2026-10-21 22:00Z · first seen 2026-10-21 18:51Z · last seen 2026-10-21 19:07Z
    !GYH 10/016 GYH RWY 05/23 CLSD 2610211851-2610212200
  • 09/021 · closure (full) · runway 05/23effective 2026-09-30 01:00Z → 2026-09-30 12:00Z · first seen 2026-09-28 22:56Z · last seen 2026-09-28 22:56Z
    !GYH 09/021 GYH RWY 05/23 CLSD 2609300100-2609301200
  • 09/019 · closure (full) · runway 05/23effective 2026-09-28 01:00Z → 2026-09-29 12:00Z · first seen 2026-09-25 21:04Z · last seen 2026-09-28 22:56Z
    !GYH 09/019 GYH RWY 05/23 CLSD DLY 0100-1200 2609280100-2609291200
  • 09/016 · closure (full) · runway 05/23effective 2026-09-25 01:00Z → 2026-09-25 12:00Z · first seen 2026-09-23 18:13Z · last seen 2026-09-24 18:33Z
    !GYH 09/016 GYH RWY 05/23 CLSD 2609250100-2609251200
  • 09/017 · closure (full) · runway 05/23effective 2026-09-24 14:30Z → 2026-09-24 15:00Z · first seen 2026-09-24 14:14Z · last seen 2026-09-24 14:43Z
    !GYH 09/017 GYH RWY 05/23 CLSD 2609241430-2609241500
  • 09/015 · closure (full) · runway 05/23effective 2026-09-23 01:00Z → 2026-09-24 12:00Z · first seen 2026-09-22 13:03Z · last seen 2026-09-23 18:13Z
    !GYH 09/015 GYH RWY 05/23 CLSD DLY 0100-1200 2609230100-2609241200
  • 09/011 · closure (full) · runway 05/23effective 2026-09-22 01:00Z → 2026-09-23 12:00Z · first seen 2026-09-21 12:22Z · last seen 2026-09-22 00:45Z
    !GYH 09/011 GYH RWY 05/23 CLSD DLY 0100-1200 2609220100-2609231200
Published FAA baseline (NASR record)

Runway 05/23: Open on the published record — a baseline that does not reflect temporary closures or restrictions, not the current operational status.

Recent pilot reports involving runway 05/23

Official PIREPs that name this runway explicitly, past 6 hours.

No pilot report in the last 6 hours names runway 05/23 at KGYH explicitly. Reports near the airport that do not name a runway are on the airport page.

Instrument approaches to runway 05/23

From the FAA d-TPP, linked to the official plates.

Runway 05

Runway 23

2 departure procedures · 4 STARs · FAA d-TPP cycle 2611. Plates open on aeronav.faa.gov (public domain); ATIS Alerts does not reproduce charts or minimums.

Methodology and sources

Short version below; the full write-up is at Runway Intelligence methodology, and every launched airport is listed on the Runway Intelligence hub.

  • Active runwayscome first from the tower's TFDM (Terminal Flight Data Manager) airport configuration, received as structured data through the FAA SWIM Cloud Distribution Service at towers that have it; otherwise from the airport's D-ATIS text (community relay of the FAA broadcast) with an open, tested parser, and the broadcast text is always shown. Every change is recorded, so “recorded use” is what the facility stated, never an inference. ATIS Alerts is not an FAA product and this is not FAA data; SWIM content is for non-operational use.
  • Flowis the compass direction of the stated arrival ends (eight sectors, named only when every arrival end points within 30° of the others and clear of a sector edge); a tower's own configuration name is used when it carries a direction word. Stored separately from the runway sets.
  • Equipment, LAHSO and frequencies come from the FAA NASR 28-day subscription (cycle 2026-10-01): approach lights, visual glide slope, edge / centerline / touchdown-zone lights, REIL, ILS components with FAA status, RVR, markings, LAHSO hold-short points and available landing distances, and facility frequencies with their published sectorization. Outage annotations are readings of the NOTAM or D-ATIS text shown beside them. Blank FAA fields read “Not available”.
  • Wind components use the current METAR (aviationweather.gov) against TRUE runway headings from the OurAirports/FAA runway record.
  • Runway visual range, tower demand and traffic-management restrictions come from FAA SWIM: STDDS Airport Data (RVR and light settings, about 130 airports) and TFDM (15-minute runway demand, APREQ/MIT restrictions). Each block is stamped with its own time; none of it is an FAA product or a clearance.
  • Predicted runway scores each open end from the TAF wind (headwind, crosswind penalty, tailwind avoidance, longest-runway tie-break), excludes stated closures, and — once a wind sector has 24 h of recorded use — adjusts confidence by what the facility did under similar wind; every row lists its reasons. It does not model noise abatement or flow programs beyond what the record shows.
  • History thresholds: usage shares need 12 / 48 / 168 recorded hours for the 24-hour / 7-day / 30-day windows; a wind sector needs 24 h and 5 days; time-of-day needs 7 days and 20 h per daypart; flow shares need 48 h. Below a bar the module says so instead of showing a percentage.
  • Climatology: Iowa Environmental Mesonet ASOS archive, one observation per hour, 45° wind sectors, percentiles via t-digest; runway geometry is today's record applied to all years. Methodology v1.
  • PIREPs: official reports from aviationweather.gov are attached only when the text names this runway and the report is tied to KGYH by identifier or by position within 15 NM. Approaches: FAA d-TPP metafile, current charting cycle; plates link to aeronav.faa.gov. No minimums are reproduced.
  • Data freshness: METAR and D-ATIS refresh every minute on this page; the D-ATIS recorder ran 0 min ago; usage rollups every 3 h; climatology through 2025-12-31.

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Other runways at KGYH

KGYH has a single runway.

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Tools for this runway

KGYH airport diagram

Official FAA taxiway and runway layout. Tap to zoom.

Official FAA airport diagram · d-TPP cycle 2611 · Not for navigation. Download the official FAA PDF ↗

⚠️ ATIS Alerts provides informational runway analysis based on available weather, the tower's TFDM configuration and NOTAMs received through FAA SWIM, D-ATIS text, FAA data and historical observations. Active runways shown here are what the tower or its D-ATIS stated and may lag or be misread; NOTAM coverage is not complete; predicted runways are an ATIS Alerts estimate, not an ATC assignment; equipment states are readings of the official text shown with them. Not an FAA product. Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.