KALO Waterloo Rgnl

PROBABLE 60%

Runway 18 — wind slightly favors it, low confidence

Based mostly on wind; no traffic or ATIS to confirm. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. No ADS-B traffic data available.

certainty: 60% evidence: WEAK Class D

Wind 170° true at 8 kt · VFR · 55 min old · from KCCY (32.3 nm away)

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

18 57% 6003 ft · 8 kt head, 2 kt x-left

12 43% 8399 ft · 6 kt head, 5 kt x-right

30 <1% 8399 ft · 6 kt TAIL, 5 kt x-left · calm-wind rwy

36 <1% 6003 ft · 8 kt TAIL, 2 kt x-right

Active NOTAMs affecting runways

APCH OTS RWY 12 until 10-23 20:00Z

NAV ILS RWY 12 GP U/S

LIGHTING RWY 30 until 10-20 20:00Z

RWY 30 VASI U/S

LIGHTING RWY 30 until 10-30 20:00Z

SVC PCL RWY 30 ALS U/S EXC MEDIUM INTST ON CONS

Why — evidence behind this answer

Runway 18

WIND 8 kt headwind, 2 kt left crosswind 55 min ago +1.19
PRIOR runway length 6003 ft -0.03

Runway 12

WIND 6 kt headwind, 5 kt right crosswind 55 min ago +0.84
PRIOR runway length 8399 ft +0.03

Runway 30

WIND 6 kt TAILWIND, 5 kt left crosswind 55 min ago -4.57
PRIOR runway length 8399 ft +0.03

Runway 36

WIND 8 kt TAILWIND, 2 kt right crosswind 55 min ago -7.02
PRIOR runway length 6003 ft -0.03

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	55 min	Nearest station KCCY (32.3 nm away)
ADSB	UNAVAILABLE		No ADS-B track history here yet
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (No ADS-B track history here yet)

Was this right?

KALO field & runways

Waterloo Rgnl, Waterloo, Iowa. Field elevation 873 ft. Class D airspace. Towered. Magnetic variation 0.0°W on record, 0.7°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 0.047°/year west — about 1° every 21 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
12	127.9°	128.6°	runway 13 by the rule today · 8.6° past	8,399 ft	ASPH	left	ILS
18	187.8°	188.4°	runway 19 by the rule today · 8.4° past	6,003 ft	ASPH-CONC	left
30	307.9°	308.6°	runway 31 by the rule today · 8.6° past	8,399 ft	ASPH	left	calm-wind RWY 30 IS CALM WIND RWY.
36	7.8°	8.4°	runway 1 by the rule today · 8.4° past	6,003 ft	ASPH-CONC	left

Generated 11:49:41Z · auto-refreshes · JSON

KALO ☆ Waterloo Rgnl