// Station · 7m ago
KSMN
Lemhi County Airport
CAT IFR
WIND CALM
VIS 2.5 SM
CEILING Few/scattered only
T/Td 7°C / 6°C
ALTIM 29.85 inHg
WX BR
ELEV 4,043 FT
45.1222°N / 113.8820°W
LOCATION · Salmon, US
WIND
000°0 kt
KSMN · 4,043 FT
© OSM · CartoDB
// Current + 24h forecast · METAR loaded · TAF loading…
METRIC
NOW · 11Z
+6H
+12H
+18H
WIND
CALM
VIS
2.5 SM
CEILING
—
LAYERS
FEW001
T / Td
7 / 6
ALTIM
29.85"
// Interpretation
IFR conditions — visibility 2.5 SM. Winds calm, visibility 2.5 SM, a few at 100 ft. Reported weather: BR. Would deteriorate to LIFR below 500 ft ceiling or 1 SM, or improve to MVFR above 1,000 ft and 3 SM.
Loading TAF forecast narrative…
// Want this glance-able on 10 airports? METAR Deck →// Raw observation METAR string + decoded
SPECI KSMN 271147Z AUTO 00000KT 2 1/2SM BR FEW001 07/06 A2985 RMK AO2 VIS 1/2V5
KSMN · day 27 at 11:47 UTC · winds calm · visibility 2.5 SM · a few clouds at 100 ft · temp 7°C / dewpoint 6°C · altimeter 29.85" Hg · weather: BR · automated station w/ precipitation discriminator
// Runway analysis · computed from current METAR wind
Wind CALM
ALL USABLE · WINDS CALM
WIND
000°calm
HEADWIND
CAUTION · HIGH XW
AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS
2 ends
17
HDG 170°
—CALM
——
5,510'
35
HDG 350°
—CALM
——
5,510'
Pattern altitude: 5,043 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 +0°C
4,100FT
+57 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS
↘ -600 FT
24h AGO18h12h6hNOW
FIELD ELEV4,043 FT
OAT+7°C
ISA DELTA+0°C
PRESSURE ALT4,111 FT
// Performance equivalent
Operating here right now feels like operating at KBYI
(Burley Municipal Airport, Burley, elev 4,150 ft)
on a standard ISA day.
// Aircraft performance impact
SIGNIFICANT
TAKEOFF ROLL
CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+41%
-29%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+29%
-18%
Light jetCJ4, Phenom 300, M2
+16%
-12%
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 · 1 reported · highest to lowest
// Sun & Moon · times in Z · bar = local day (UTC-8)
11:56ZSUNRISE
19:34ZSOLAR NOON
03:12ZSUNSET
03:47ZCIVIL END
CURRENT11:54Z
DAYLIGHT REMAINING15h 17m
VFR NIGHT BEGINS03:47Z (15h 53m)
DAY LENGTH15h 15m
Waxing Gibbous
ILLUMINATION83%
MOONRISE20:41Z
MOONSET11:56Z
FULL MOON IN4 days
// Nearest reporting stations · 5 shown · 150 NM (sparse area)
KBTM
LIFR
→
VFR
13Z
Bert Mooney Airport · Butte
- WIND
- 130° / 4 kt
- VIS
- 0.75 SM
- CEILING
- OVC002
- DIST
- 77 NM NE
- AGE
- 8m ago
KMYL
VFR
McCall Municipal Airport · McCall
- WIND
- 020° / 9 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 95 NM W
- AGE
- 3m ago
KSUN
VFR
Friedman Memorial Airport · Hailey
- WIND
- 330° / 9 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 99 NM S
- AGE
- 19m ago
KMSO
VFR
Missoula Montana Airport · Missoula
- WIND
- 310° / 3 kt
- VIS
- 10+ SM
- CEILING
- OVC036
- DIST
- 108 NM N
- AGE
- 1h 1m ago
KHLN
VFR
Helena Regional Airport · Helena
- WIND
- CALM
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 119 NM NE
- AGE
- 1h 1m ago
// Area map · 120 NM radius · CartoDB Dark Matter + aeronautical overlay
© OpenStreetMap · CartoDB · OpenAIP
//
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