// Station · 22m ago
KHLN
Helena Regional Airport
CAT VFR
WIND 110° / 4 kt
VIS 10+ SM
CEILING CLR
T/Td 27.2°C / 11.1°C
ALTIM 29.94 inHg
ELEV 3,877 FT
46.6068°N / 111.9830°W
LOCATION · Helena, US
WIND
110°4 kt
KHLN · 3,877 FT
© OSM · CartoDB
// Current + 24h forecast · METAR loaded · TAF loading…
METRIC
NOW · 17Z
+6H
+12H
+18H
WIND
110°/4
VIS
10+ SM
CEILING
CLR
LAYERS
—
T / Td
27 / 11
ALTIM
29.94"
// Interpretation
VFR with light winds at 110°/4 kt. Visibility better than 10 statute miles and no reported cloud layers. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.
Loading TAF forecast narrative…
// Want this glance-able on 10 airports? METAR Deck →// Raw observation METAR string + decoded
METAR KHLN 111753Z 11004KT 10SM CLR 27/11 A2994 RMK AO2 SLP114 T02720111 10272 20150 56003
KHLN · day 11 at 17:53 UTC · wind from 110° at 4 kt · visibility 10+ SM · temp 27°C / dewpoint 11°C · altimeter 29.94" Hg · automated station w/ precipitation discriminator · sea-level pressure 1011.4 mb
// Runway analysis · computed from current METAR wind
Wind 110° @ 4 kt
ALL USABLE · WINDS CALM
WIND
110°4 kt
HEADWIND
CAUTION · HIGH XW
AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS
6 ends
09
HDG 090°
—CALM
——
9,000'
27
HDG 270°
—CALM
——
9,000'
05
HDG 050°
—CALM
——
4,644'
23
HDG 230°
—CALM
——
4,644'
16
HDG 160°
—CALM
——
2,989'
34
HDG 340°
—CALM
——
2,989'
Pattern altitude: 4,877 ft MSL (1,000 ft AGL).
Verify pattern direction and altitude with the chart supplement before flying.
// On calm winds (<3 kt), all runways are usable — favor the longest or whatever the pattern calls for.
// Density altitude · ISA +20°C
6,200FT
+2,323 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS
↘ -200 FT
24h AGO18h12h6hNOW
FIELD ELEV3,877 FT
OAT+27°C
ISA DELTA+20°C
PRESSURE ALT3,854 FT
// Performance equivalent
Operating here right now feels like operating at KRED
(Red Lodge Airport, Red Lodge, elev 5,763 ft)
on a standard ISA day.
// Aircraft performance impact
SIGNIFICANT
TAKEOFF ROLL
CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+62%
-43%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+43%
-28%
Light jetCJ4, Phenom 300, M2
+25%
-19%
Approximate using ~10% perf loss / 1,000 ft DA for normally aspirated, scaled by powerplant type. Verify with your aircraft's POH for accurate numbers — especially above 5,000 ft DA where these rules of thumb diverge.
// Cloud layers · clear · no layers reported
// Sun & Moon · times in Z · bar = local day (UTC-7)
11:47ZSUNRISE
19:34ZSOLAR NOON
03:22ZSUNSET
04:00ZCIVIL END
CURRENT18:15Z
DAYLIGHT REMAINING9h 06m
VFR NIGHT BEGINS04:00Z (9h 44m)
DAY LENGTH15h 34m
Waning Crescent
ILLUMINATION10%
MOONRISE09:19Z
MOONSET00:54Z
FULL MOON IN18 days
// Nearest reporting stations · 3 shown · 60 NM radius
KBTM
VFR
Bert Mooney Airport · Butte
- WIND
- 210° / 10 ktG16
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 45 NM SW
- AGE
- 22m ago
K3U3
VFR
Bowman Field · Anaconda
- WIND
- 200° / 16 ktG21
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 46 NM SW
- AGE
- 20m ago
KGTF
VFR
Great Falls International Airport · Great Falls
- WIND
- 210° / 11 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 58 NM NE
- AGE
- 22m ago
// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay
© OpenStreetMap · CartoDB · OpenAIP
//
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