KOTM Ottumwa Rgnl

PROBABLE 60%

Runway 31 — weak lean on available evidence

No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. ADS-B tracking just started here — traffic history is still building. Weather observation is 81799 minutes old — treat with caution.

certainty: 60% evidence: NONE no tower now Class E

Wind 330° true at 29 kt G39 · LIFR · 81799 min old

▶ Listen live — ATIS/CTAF on LiveATC opens LiveATC’s own player · verify the broadcast yourself

31 56% 6001 ft · 28 kt head, 8 kt x-right · calm-wind rwy

13 15% 6001 ft · 28 kt TAIL, 8 kt x-left

22 14% 4601 ft · 8 kt TAIL, 28 kt x-right

4 14% 4601 ft · 8 kt head, 28 kt x-left

Why — evidence behind this answer

Runway 31

IMC_APCH LIFR conditions and 31 has an instrument approach +1.30
PRIOR runway length 6001 ft +0.03
WIND 28 kt headwind, 7 kt right crosswind 81799 min ago +0.00

Runway 13

PRIOR runway length 6001 ft +0.03
WIND 28 kt TAILWIND, 7 kt left crosswind 81799 min ago -0.00

Runway 22

PRIOR runway length 4601 ft -0.03
WIND 8 kt TAILWIND, 28 kt right crosswind 81799 min ago -0.00

Runway 4

PRIOR runway length 4601 ft -0.03
WIND 8 kt headwind, 28 kt left crosswind 81799 min ago +0.00

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	81799 min
ADSB	WARMING_UP	2507 min	Only 0 min of track history so far
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (Only 0 min of track history so far)

Was this right?

KOTM field & runways

Ottumwa Rgnl, Ottumwa, Iowa. Field elevation 846 ft. Class E airspace. Non-towered (NON-ATCT). Magnetic variation 1.0°W on record, 0.6°W today.

The FAA's variation of record is the number this field was surveyed against; the second is where north points now, from WMM2025. It is moving 0.053°/year west — about 1° every 19 years — which is why runway numbers eventually stop matching their pavement.

Runway data from the FAA NASR 01 Oct 2026 cycle. Where NASR locates both thresholds, the true heading is the bearing between them rather than NASR's whole-degree alignment. Magnetic is that heading against *today's* declination from WMM2025, not the field's variation of record — so it can differ from the chart by the gap between the two shown above. The number painted on the runway is the one ATC uses.
Runway	True	Magnetic	Number	Length	Surface	Pattern	Notes
13	135.1°	135.6°	runway 14 by the rule today · 5.6° past	6,001 ft	CONC	left
22	224.9°	225.4°	runway 23 by the rule today · 5.4° past	4,601 ft	ASPH-CONC	left
31	315.1°	315.6°	runway 32 by the rule today · 5.6° past	6,001 ft	CONC	left	ILS calm-wind RY 31 IS PREFERRED CALM WIND RY.
4	44.9°	45.4°	runway 5 by the rule today · 5.4° past	4,601 ft	ASPH-CONC	left

Generated 09:14:38Z · auto-refreshes · JSON

KOTM ☆ Ottumwa Rgnl